WO2011115587A1 - A system of wireless transmission of information from traffic signs, direction signs and information panels in road traffic - Google Patents

A system of wireless transmission of information from traffic signs, direction signs and information panels in road traffic Download PDF

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Publication number
WO2011115587A1
WO2011115587A1 PCT/SI2011/000014 SI2011000014W WO2011115587A1 WO 2011115587 A1 WO2011115587 A1 WO 2011115587A1 SI 2011000014 W SI2011000014 W SI 2011000014W WO 2011115587 A1 WO2011115587 A1 WO 2011115587A1
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WIPO (PCT)
Prior art keywords
traffic
information
data
signs
processing
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PCT/SI2011/000014
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French (fr)
Inventor
Amor Chowdhury
Bojan Kotnik
Original Assignee
Margento R&D D.O.O.
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Application filed by Margento R&D D.O.O. filed Critical Margento R&D D.O.O.
Publication of WO2011115587A1 publication Critical patent/WO2011115587A1/en

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    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/017Detecting movement of traffic to be counted or controlled identifying vehicles

Definitions

  • the presented invention belongs to the field of automation of traffic information and signalization on the basis of computer-supported systems, more precisely to the field of traffic signalization systems, information and navigation devices, inbuilt into traffic signalization, and automobile electronic equipment, and the field of remote management of traffic signalization.
  • the modern traffic infrastructure is becoming a more and more complex and complicated system both from the point of view of management and usage of traffic infrastructure.
  • Traffic infrastructure operators are thus often confronted with the problem of efficient and responsive management of traffic signalization and its adaptation to new situations, exceptional occurrences, changes of regulations, weather conditions, and similar.
  • the users of the traffic infrastructure are at the same time confronting the problems arising from a very complex system of traffic signalization and possible changes of the traffic regime, which cause situations where the electronic maps in navigation devices do not include the latest changes of the traffic regime. It also often occurs that a navigation device based on the system of satellite navigation simply fails if the driver is in the area without a satellite navigation signal for a longer period of time.
  • the technical problem solved by the presented invention is the design of a system connecting a network of traffic signs equipped with a special radiofrequency identification and communication device with a specially designed radiofrequency identification and processing device located in a car, and with a control processing centre for remote control with the option of refreshing data of the electronic traffic signs network, which will enable the user of the system - the driver of a personal or a cargo vehicle - to receive the information on the traffic signs he/she is about to encounter.
  • the system must enable forwarding of warnings to the driver about merging into the correct lane according to the route destination, about dangers on the road, such as roadwork, marked by the workers for every case, about speed limits and similar traffic situations.
  • the system must enable complementarity with the existent navigation devices in the car, as it must adapt to the newly occurring situations in road traffic, such as new temporary or permanent traffic regime, markings at roadwork, bypasses with different exceptional occurrences, etc. which the providers of digital maps of navigation devices cannot refresh fast enough.
  • the system should also enable efficient, reliable, safe and precise road tolling through simple electronic reading of the locations with traffic signs equipped with a device according to the invention at the entries, exits and other control point on highways. On the basis of the information read in this way the system should enable an exact settlement of tolls and subtraction of the amount from the credit on the electronic wallet contained on the removable user contactless or contact smart card.
  • the user smart card should serve as a medium for secure storage of information on the route travelled by the user.
  • the patent document with ref. no. US 2006/0017587 A1 describes a geographic information system on the basis of a radiofrequency identification technology including a special navigation unit in the car, into which the driver enters the destination, and RFID receivers inbuilt into the roadway itself or by it.
  • a radiofrequency identification technology including a special navigation unit in the car, into which the driver enters the destination, and RFID receivers inbuilt into the roadway itself or by it.
  • this information is transmitted through a RFID unit inbuilt in the car in predefined equidistant time intervals.
  • the receiver in or by the roadway detects a transmitted RFID signal with a destination entry, a data connection with the server is established, and the latter transmits geographic navigation data to the receiver.
  • the receiver transmits this information through RFID to a special navigation device in the car. Beside geographic navigation data the system can also provide the driver with traffic information.
  • the present invention differs from the above described patent with ref. no. US 2006/0017587 A1 insofar as the system according to the invention includes a traffic sign equipped with special electronic radiofrequency identification and communication device and a power supply, radiofrequency identification and processing device installed in the car, and a control processing centre for remote control and updating of the entire system of electronic traffic signs.
  • the proposed solution is complementary with the existent navigation devices, and it also enables independent warnings for the driver about changes in the traffic regime, the content of traffic signs, direction signs and information panels by using prerecorded and/or synthesized voice messages.
  • the communication device of the traffic sign enables updating of the displayed content of the electronic traffic sign.
  • the proposed invention differs from the above-described patent with ref. no. US 2005/0143916 A1 insofar as the traffic sign includes an electronic radiofrequency identification and communication device which enables transmission of the traffic sign's content to the unit in a car.
  • the RFID tag only includes an identification number of the location where the tag is set. The system then on the basis of this ID number determines the geographic coordinates of the tag and with this the location of the user.
  • remote updating of the traffic signalization's content is also enabled, which is not provided in the patent US 2005/0143916 A1.
  • the proposed solution provides the driver not only with the information on the current location and the driving direction, but also the information on other contents of electronic signalization.
  • the proposed invention differs from the abovementioned patent with ref. no. US 2009/0140882 A1 insofar as the content of the electronic traffic sign's display is set using a communication device at the processing centre, and is forwarded to the processing device of the approaching car and from there to the driver.
  • the system according to the proposed invention uses a radiofrequency identification and processing device inbuilt in a car to detect and receive the data from traffic signs equipped with a radiofrequency identification and communication device according to the invention.
  • the system according to the proposed invention uses a radiofrequency identification and processing device inbuilt in a car to detect and receive the data of the electronic record of traffic signs, direction signs and information panels equipped with special electronic radiofrequency identification and communication devices. Besides that, the content of the electronic record of signs equipped with the mentioned device can in the system according to the proposed invention be changed, updated and upgraded from the remote control processing centre.
  • the core of the system of wireless transmission of information from traffic signs, direction signs and information panels in road traffic is the fact that the system enables automatic detection, recognition and driver warning of the approaching traffic signs, direction signs and information panels.
  • the system also enables the operator of the traffic infrastructure to update or change the content of the traffic signalization remotely from the processing control centre.
  • the system according to the invention consists of three basic modules. The first is the traffic module, which can be a traffic sign, a direction sign, an information panel or another traffic signalization equipped with a special radiofrequency identification and communication device.
  • the second is the radiofrequency identification and processing unit inbuilt in a car, and the third module is the processing centre.
  • Figure 1 A block scheme of the entire system of wireless transmission of information from traffic signs, direction signs and information panels in road traffic
  • FIG. 2 A block scheme of the structure of the special electronic radiofrequency identification and communication device with power supply which the electronic traffic module is equipped with
  • FIG 3 A block scheme of the structure of the radiofrequency identification and processing device inbuilt in a car
  • Figure 4 The functioning algorithm of the special electronic radiofrequency identification and communication device with power supply, which is included in the electronic traffic module
  • the system of wireless transmission of information from traffic signs, direction signs, information panels and other traffic signalization in road traffic is designed so that it enables a special electronic processing unit inbuilt in a car to automatically read, identify and process the content of traffic signalization received from the remote control processing centre in an electronic form, i.e. in a machine understandable language, and to communicate this information to the driver in different ways.
  • the system according to the invention includes the following components: a traffic module (1.1) equipped with a special electronic radiofrequency identification and communication device (1.2) with a corresponding power supply, a radiofrequency identification and processing device (1.5) inbuilt in a car (1.4), and a control processing centre (1.6) for remote control and updating of the entire system of electronic traffic signs, direction signs and information panels.
  • a traffic sign, a direction sign, an information panel or other traffic signalization (hereinafter: traffic module (1.1)) is equipped with a special electronic radiofrequency identification and communication device (1.2) with a corresponding power supply.
  • Traffic module (1.1) can be a static traffic sign with a fixed warning display, information or prohibitory sign, a mobile traffic sign with a fixed display, or a static or mobile electronic traffic sign with a dynamic display in the form of a bulb matrix, LED diodes, LCD display, etc.
  • a passive radiofrequency identification device (1.2) and a traffic sign with a fixed display power supply is not necessary.
  • the memory of the special electronic radiofrequency identification and communication device (1.2) has recorded the data on the content of the traffic sign's display, the data on precise geographic coordinates of the traffic sign, and other information such as road designation, identification of the route, approaching major towns by the road and the data on important traffic signalization further on the road.
  • the content of these information is not fixed, it can be updated from the remote control centre (1.6).
  • the radiofrequency identification and processing device (1.5) installed in a car (1.4) enables automatic remote reading of the content of the traffic module (1.1) information.
  • the device (1.5) includes wired data interfaces, such as USB, CAN- bus and/or Ethernet, and wireless data interfaces, such as Bluetooth, ZigBee and/or WLAN, enabling connection of the device (1.5) with the existent inbuilt or temporarily installed navigation device in the car or with another information system in the car.
  • the proposed radiofrequency identification and processing device (1.5) can serve as a correction factor for the existent navigation device, as it can forward to the latter the correction position coordinates of the traffic sign equipped with the device according to the invention if GPS signal is lost.
  • the radiofrequency identification and processing device (1.5) also includes an interface for connecting removable user contact or contactless smart card which serves as a medium for secure storage of sensitive information, such as data on the travelled route according to the position of passed by traffic modules (1.1) equipped with a special electronic radiofrequency identification and communication device (1.2) recording entry onto highway, interim control points and/or exit from the highway.
  • Smart card can also include an "electronic wallet" to support electronic road tolling in an open flow.
  • Radiofrequency identification connection between traffic signalization equipped with a special electronic device according to the invention and the radiofrequency identification and processing device installed in a car.
  • the device according to the invention enables forwarding the information directly to the driver in the form of pre-recorded and/or synthesized voice messages, e.g. warnings about speed limits, traffic congestions and similar.
  • Control processing centre (1.6) for remote control and updating of the entire system of electronic traffic signs, direction signs and information panels enables control and changing of the content of the messages that are transmitted to radiofrequency identification devices (1.5) installed in cars (1.4) by active radiofrequency identification devices (1.2).
  • Control processing centre (1.6) consists of one or more server computers connected to internet network through TCP/IP connection, on which appropriate software with algorithms for remote control and updating of the traffic signs system is running.
  • An important component of the control processing centre (1.6) is the database containing information on a set of all traffic modules (1.1) equipped with special electronic radiofrequency identification and communication devices (1.2).
  • the subject of the invention is the system of wireless capture and transmission of information from traffic modules in road traffic, shown in block scheme in Figure 1.
  • the traffic module (1.1) which can be a traffic sign, a direction sign, an information panel and/or other traffic signalization, is equipped with a special electronic radiofrequency identification and communication device (1.2). Radiofrequency identification enables data transfer between the electronic device (1.2) and the radiofrequency identification processing device (1.5) installed in a car (1.4) or another mean of transport.
  • Data communication between the electronic device (1.2) installed on the traffic module (1.1) and remote processing and control centre (1.6) goes through packet data transfer (1.3) (e.g. GPRS or UMTS) enabled by the mobile operator's system of base stations (1.9).
  • the processing and control centre (1.6) is connected to the World Wide Web through TCP/IP connection (1.7).
  • the connection (1.8) enables data transfer from the mobile operator's network and internet.
  • FIG. 2 shows a block scheme of a special electronic radiofrequency identification and communication device (1.2), which is a component of a traffic module (1.1).
  • the main part of the device is central processing unit (2.2), the firmware of which ensures reception and processing of data, transmitted from a remote processing and control centre (1.6), wireless data transmission to the radiofrequency identification and processing device (1.5) installed in a car (1.4), and optionally controls the screen on the display device of the electronic traffic module (1.1) according to the request of the remote processing and control centre (1.6).
  • the core RAM memory (2.3) stores temporary information when executing the program code.
  • the read-only memory (2.4) of the FLASH type (it can also be EEPROM or any other type of memory that stores the content also after the power supply is switched off) stores the firmware code of the device as well as electronic data on the traffic module (1.1) which the remote processing and control centre (1.6) send to the device (1.2) using GPRS or UMTS communication interface (2.7) and the external aerial (2.8), and which the device further on sends to the radiofrequency identification and processing device (1.5) in a car (1.4) using the radiofrequency transmitting-receiving unit (2.5) and the corresponding integrated RFID aerial (2.6).
  • the traffic module (1.1) is a traffic sign, direction sign, information panel or other traffic signalization with one of the forms of electronic display, such as LED, LCD or flashlights
  • the display can be controlled through the input/output unit (2.9).
  • the power supply unit ensures the energy supply for the device by providing the appropriate operating voltage and the necessary operating current.
  • power supply can be implemented as network supply, replaceable accumulator batteries or photovoltaic converter (solar cell).
  • the algorithm of the special electronic radiofrequency identification and communication device (1.2) with which the electronic traffic module (1.1) is equipped is shown in Figure 4. Switching on the power supply of the device puts the algorithm in the initial state START. Whether a data update exists on the side of the remote control processing centre (1.6) is checked in step (S4.1). If the answer is YES, data transfer from the control processing centre (1.6) and recording of this data into memory (2.4) are performed in step (S4.2). In case of a traffic module (1.1) with an electronic display the displayed screen or the content of the signalization can be changed through module (2.9) in step (S4.3) on the request of the remote control processing centre.
  • step (S4.1) If the answer in step (S4.1) is NO, whether the RFID transmitting/receiving unite (2.5) has detected a nearby vehicle (1.4) equipped with the device (1.5) is checked in step (S4.4). If the answer is NO, the algorithm returns to the initial state. If the answer is YES, the data on traffic signalization and other additional information, such as exact position, direction of driving, warnings about upcoming traffic signs, changing lanes, etc., is read from the memory (2.4) in step (S4.5), after which this data is sent to the device (1 .5) using the RFID transmitting/receiving unit (2.5) and the integrated aerial (2.6) in step (S4.6).
  • the block scheme of the radiofrequency identification and processing unit (1.5) adapted for installation in a car (1.4) is shown in Figure 3.
  • the main part of the device (1.5) is the central processing unit (3.2), the firmware of which controls the operation of all the device components. Its basic function is detection, identification and reception of data from traffic modules (1.1 ) equipped with the electronic device (1.2).
  • the core RAM memory (3.3) stores temporary information when executing the program code.
  • the read-only memory (3.4) of the FLASH type (it can also be EEPROM or any other type of memory that stores the content also after the power supply is shut off) stores the firmware code of the device (1 .5) as well as electronic data on traffic modules (1.1) which the device (1.5) receives from the traffic module (1.1 ) equipped with an electronic device (1.2), and voice recordings and other data, necessary for functioning of the TTS (Text-To-Speech) unit (3.10).
  • Detection, identification and reception of data using the radiofrequency identification technology are the tasks of the RFID transmitting/receiving unit (3.5) and the integrated RFID aerial (3.6).
  • the central processing unit (3.2) also controls the input/output unit (3.7) which controls the input/output interfaces: interface (3.8) for the standard bus in the automobile industry "CAN-bus", interface (3.9), interface (3.9) to the external navigation device, and a special unit (3.10) for reproduction of pre-recorded and/or synthesized voice messages, notices and warnings.
  • interface (3.9) to the external navigation device can be wired, such as USB, Ethernet, CAN-bus, RS- 232, or wireless, such as Bluetooth, ZigBee or WLAN.
  • the driver manages the device (1.5) using the graphic user interface (3.1 1 ).
  • the radiofrequency identification and processing device (1.5) also includes an interface for contact or contactless user smart card (3.13) with which a removable contact or contactless user smart card (3.1) connects with the device (1.5).
  • User smart card (3.1) securely stores the data on the travelled route, and the data necessary for road tolling and bridge tolling, as well as the electronic wallet from which the used amount is subtracted for individual payments.
  • the data on the user smart card (3.1) are secured with appropriate cryptographic algorithms.
  • the procedure of reciprocal authenticity verification is performed, with which possible abuses of the user card (3.1) or the device (1.5) are prevented.
  • step (S5.1) The functioning algorithm of the radiofrequency identification and processing device (1.5) is shown in Figure 5.
  • step (S5.2) it is then checked if the contact or contactless user smart card (3.1) is correctly inserted or approached. If the user card (3.1) is not inserted, the device does not function (1.5).
  • radiofrequency identification module (3.5) is turned on in step (S5.3) and active detection of traffic modules (1.1) equipped with a special electronic device (1.2) starts with step (S5.4).
  • step (S5.5) After detecting a traffic module (1.1) equipped with a special electronic device (1.2), data transfer between the electronic device (1.2) installed on the traffic module and the radiofrequency identification and processing device (1.5) in the car is performed in step (S5.5). Further in the algorithm decisions according to the status of the message and the setting of the device are made. Whether the option of voice messages is enabled is checked in step (S5.6). If this option is enabled, the message is synthesized and reproduced in step (S5.7). In step (S5.8) connection with an exterior navigation device is checked. If an external navigation device (1.2) is connected with the processing device (1.5), navigation data is sent to the external navigation device in step (S5.9). This enables and supports adaptive navigation.
  • step (S5.10) data is recorded on the sure smart card (3.1) and eventually the toll costs are calculated and subtracted from the credit stored on the user card (3.1).
  • step (S5.11) data is processed and shown on the graphic user interface.
  • the algorithm then returns to the state of detecting new traffic modules (1.1) equipped with the electronic device (1.2).
  • the system of wireless transfer of information from traffic signs, direction signs, information panels and other traffic signalization in road traffic according to the presented invention consists of a number of traffic modules (1.1) with the device (1.2) which are operated and controlled from the processing centre (1.6) through different data and mobile connections (e.g. GPRS or UMTS).
  • the system can also consist of a number of cars (1.4) equipped with the device (1.5).
  • Each special radiofrequency identification and communication device (1.2) with which traffic modules (1.1) are equipped has a unique identifier (UID) recorded in the read-only memory, on the basis of which every device (1.2) and the corresponding traffic module (1.1) are entered in the database of the remote processing and control centre (1.6).
  • the operator of the processing centre can thus simply control and update the content of the data that an individual device (1.2) with the corresponding traffic module (1.1) anywhere in the field displays and transmits to the by-passing cars (1.4) equipped with the processing device (1.5) according to the invention.
  • Unique identifier UID of an individual special radiofrequency identification and communication device (1.2) is with other traffic information also transmitted to the processing device (1.5) installed in the car, when the latter approaches the traffic module (1.1) equipped with the device (1.2).
  • the device records the history of all traffic modules (1.1) equipped with the device (1.2) on the route, and securely stores them on the user card (3.1).
  • the presented invention eliminates the mentioned disadvantages of the existent navigation systems, as it is able to ensure additional information on a newly occurred traffic regime on the basis of traffic signalization equipped with the system according to the invention, and thus enables adaptive navigation.
  • Users of road traffic can nowadays choose among numerous different useful navigation solutions in the form of pre-fitted navigation devices or portable handy navigation devices the users can install in their vehicle themselves.
  • Most mentioned navigation devices have the option of updating digital maps saved in the memory of the device. But these updates mostly do not include the latest traffic regime changes, such as new traffic arrangements, new traffic signalization, newly open roads, new roundabout exits, etc. In such cases navigation using a non-updated digital map can be made very difficult, useless and sometimes even dangerous.
  • Highway network operators often face the problem of efficient, reliable and secure toll collection.
  • the advantage of the proposed system according to the invention is that it enables simple road tolling in an open flow as traffic signs at entries, exists and other control points on the highway can be upgraded with a special electronic radiofrequency identification and communication device.
  • a special radiofrequency identification and processing device in a car can perform exact calculation of road tolls and subtract the amount from the pre-charged credit on the electronic wallet stored on a removable user contactless or contact smart card.
  • the user smart card should serve as a medium for secure storage of information on the route travelled by the user.
  • An additional advantage of the system according to the invention is that the system enables remote updating of the content of the traffic signalization and the information panels using electronic radiofrequency identification and communication device which is a part of the traffic module according to the invention.
  • the communication device of the traffic sign according to the invention uses packet data transfer through an existent mobile network (e.g. GPRS or UMTS) to transfer data from and to the control processing centre (1.6).
  • the information on the change of the traffic regime is thus forwarded to the driver driving on a certain part of the road in only a few seconds after the new state of the traffic regime has been set in the control processing centre. This way road service that would change the traffic regime by mechanically changing traffic signalization or setting it up anew in not necessary.

Abstract

The presented invention belongs to the field of automation of traffic information and signalization on the basis of computer-supported systems, more precisely to the field of traffic signalization systems, information and navigation devices, inbuilt into traffic signalization and automobile electronic equipment, and the field of remote management of traffic signalization. The core of the system of wireless transmission of information from the traffic signs, direction signs and information panels in road traffic according to the invention is the fact that the system enables automatic detection, recognition and driver warning of the approaching traffic signs, direction signs and information panels as well as adaptive navigation and transmission of correction navigation data to an external navigation unit. The system also enables updating or changing the content of the traffic signalization remotely from the processing control centre. The system according to the invention consists of three basic modules. The first is the traffic module, which can be a traffic sign, a direction sign, an information panel or another traffic signalization equipped with a special radiofrequency identification and communication device. The second is the radiofrequency identification and processing unit inbuilt in a car, and the third module is the processing centre.

Description

A system of wireless transmission of information from traffic signs, direction signs and information panels in road traffic
The presented invention belongs to the field of automation of traffic information and signalization on the basis of computer-supported systems, more precisely to the field of traffic signalization systems, information and navigation devices, inbuilt into traffic signalization, and automobile electronic equipment, and the field of remote management of traffic signalization.
The modern traffic infrastructure is becoming a more and more complex and complicated system both from the point of view of management and usage of traffic infrastructure. Traffic infrastructure operators are thus often confronted with the problem of efficient and responsive management of traffic signalization and its adaptation to new situations, exceptional occurrences, changes of regulations, weather conditions, and similar. The users of the traffic infrastructure are at the same time confronting the problems arising from a very complex system of traffic signalization and possible changes of the traffic regime, which cause situations where the electronic maps in navigation devices do not include the latest changes of the traffic regime. It also often occurs that a navigation device based on the system of satellite navigation simply fails if the driver is in the area without a satellite navigation signal for a longer period of time. From the point of view of navigation and direction of the driver parts of the road located inside tunnels, covered cuts and similar are very problematic. A considerable trouble that the drivers (especially older ones) are facing is following the traffic signalization in cases of complicated traffic arrangements. Because of a high number of traffic signs, there is a danger that the driver might overlook an important warning, since because of the number of traffic signs he/she might not be able to detect them all, cognitively process them and follow them with appropriate reactions.
The technical problem solved by the presented invention is the design of a system connecting a network of traffic signs equipped with a special radiofrequency identification and communication device with a specially designed radiofrequency identification and processing device located in a car, and with a control processing centre for remote control with the option of refreshing data of the electronic traffic signs network, which will enable the user of the system - the driver of a personal or a cargo vehicle - to receive the information on the traffic signs he/she is about to encounter. The system must enable forwarding of warnings to the driver about merging into the correct lane according to the route destination, about dangers on the road, such as roadwork, marked by the workers for every case, about speed limits and similar traffic situations. The system must enable complementarity with the existent navigation devices in the car, as it must adapt to the newly occurring situations in road traffic, such as new temporary or permanent traffic regime, markings at roadwork, bypasses with different exceptional occurrences, etc. which the providers of digital maps of navigation devices cannot refresh fast enough. The system should also enable efficient, reliable, safe and precise road tolling through simple electronic reading of the locations with traffic signs equipped with a device according to the invention at the entries, exits and other control point on highways. On the basis of the information read in this way the system should enable an exact settlement of tolls and subtraction of the amount from the credit on the electronic wallet contained on the removable user contactless or contact smart card. The user smart card should serve as a medium for secure storage of information on the route travelled by the user.
The patent document with ref. no. US 2006/0017587 A1 describes a geographic information system on the basis of a radiofrequency identification technology including a special navigation unit in the car, into which the driver enters the destination, and RFID receivers inbuilt into the roadway itself or by it. When the driver enters the destination into the navigation device, this information is transmitted through a RFID unit inbuilt in the car in predefined equidistant time intervals. When the receiver in or by the roadway detects a transmitted RFID signal with a destination entry, a data connection with the server is established, and the latter transmits geographic navigation data to the receiver. The receiver then transmits this information through RFID to a special navigation device in the car. Beside geographic navigation data the system can also provide the driver with traffic information.
The present invention differs from the above described patent with ref. no. US 2006/0017587 A1 insofar as the system according to the invention includes a traffic sign equipped with special electronic radiofrequency identification and communication device and a power supply, radiofrequency identification and processing device installed in the car, and a control processing centre for remote control and updating of the entire system of electronic traffic signs. The proposed solution is complementary with the existent navigation devices, and it also enables independent warnings for the driver about changes in the traffic regime, the content of traffic signs, direction signs and information panels by using prerecorded and/or synthesized voice messages. The communication device of the traffic sign enables updating of the displayed content of the electronic traffic sign.
The patent document with ref. no. US 2005/0143916 A1 and title »Positioning Apparatus and Method Combining RFID, GPS in INS« describes a device and a procedure for carrying out positioning of a mobile object through a combination of RFID, GPS and inertial navigation system (INS). The main advantage of the this invention is that it enables positioning also in cases when GPS signal is not available or the INS output is unreliable. RFID tags can be inbuilt into the roadway, set up by the roadway, fitted on traffic signs, trees, etc.
The proposed invention differs from the above-described patent with ref. no. US 2005/0143916 A1 insofar as the traffic sign includes an electronic radiofrequency identification and communication device which enables transmission of the traffic sign's content to the unit in a car. In the patent US 2005/0143916 A1 the RFID tag only includes an identification number of the location where the tag is set. The system then on the basis of this ID number determines the geographic coordinates of the tag and with this the location of the user. In the proposed solution remote updating of the traffic signalization's content is also enabled, which is not provided in the patent US 2005/0143916 A1. The proposed solution provides the driver not only with the information on the current location and the driving direction, but also the information on other contents of electronic signalization.
Another example of using RFID technology in road traffic can be found in the patent document with ref. no. US 2009/0140882 A1 and title »Dynamic Speed Limit System«. The patent describes a system for automatic changing of the content of the electronic speed limit traffic sign depending on the presence of workers on or by the road. An electronic traffic sign has inbuilt a RFID reader, and every worker carries a special RFID tag. When there is at least one worker within the range of the RFID reader in the electronic traffic sign, the traffic sign shows the signalization for a predefined stricter speed limit.
The proposed invention differs from the abovementioned patent with ref. no. US 2009/0140882 A1 insofar as the content of the electronic traffic sign's display is set using a communication device at the processing centre, and is forwarded to the processing device of the approaching car and from there to the driver.
The patent document with ref. no. US 5.995.898 and title »RFID System in Communication with Vehicle On-Board Computer« from year 1999 describes a connection of the central car computer with a special RFID reading/writing device which enables reporting of different telemetric data on the engine condition, driving mode, amount of fuel left to an exterior device, which can be a computer at the service centre, an RFID unit set by the road, a service station, etc.
The system according to the proposed invention uses a radiofrequency identification and processing device inbuilt in a car to detect and receive the data from traffic signs equipped with a radiofrequency identification and communication device according to the invention.
The patent document with ref. no. US 2006/0206259 A1 and title »Wireless Address and Street Name Locator« describes a system based on RFID technology, which enables the display of the street, location and the surrounding house numbers on a special display device installed in a car. The street name signs and house number signs are equipped with special RFID tags, which detect the signal of the RFID reading device placed in a car. When such a car approaches the street name sign or the house number sign equipped with an RFID tag, the information on the location (the name of the street, the house number) is transmitted to the reading device in the car, and is then shown on the display device. The system according to the proposed invention uses a radiofrequency identification and processing device inbuilt in a car to detect and receive the data of the electronic record of traffic signs, direction signs and information panels equipped with special electronic radiofrequency identification and communication devices. Besides that, the content of the electronic record of signs equipped with the mentioned device can in the system according to the proposed invention be changed, updated and upgraded from the remote control processing centre.
The core of the system of wireless transmission of information from traffic signs, direction signs and information panels in road traffic according to the invention is the fact that the system enables automatic detection, recognition and driver warning of the approaching traffic signs, direction signs and information panels. The system also enables the operator of the traffic infrastructure to update or change the content of the traffic signalization remotely from the processing control centre. The system according to the invention consists of three basic modules. The first is the traffic module, which can be a traffic sign, a direction sign, an information panel or another traffic signalization equipped with a special radiofrequency identification and communication device. The second is the radiofrequency identification and processing unit inbuilt in a car, and the third module is the processing centre.
The system according to the invention shall be described in more detail with the help of the following figures:
Figure 1 - A block scheme of the entire system of wireless transmission of information from traffic signs, direction signs and information panels in road traffic
Figure 2 - A block scheme of the structure of the special electronic radiofrequency identification and communication device with power supply which the electronic traffic module is equipped with
Figure 3 - A block scheme of the structure of the radiofrequency identification and processing device inbuilt in a car Figure 4 - The functioning algorithm of the special electronic radiofrequency identification and communication device with power supply, which is included in the electronic traffic module
Figure 5 - The functioning algorithm of the radiofrequency identification and processing device, inbuilt in a personal car
The system of wireless transmission of information from traffic signs, direction signs, information panels and other traffic signalization in road traffic according to the invention is designed so that it enables a special electronic processing unit inbuilt in a car to automatically read, identify and process the content of traffic signalization received from the remote control processing centre in an electronic form, i.e. in a machine understandable language, and to communicate this information to the driver in different ways. The system according to the invention includes the following components: a traffic module (1.1) equipped with a special electronic radiofrequency identification and communication device (1.2) with a corresponding power supply, a radiofrequency identification and processing device (1.5) inbuilt in a car (1.4), and a control processing centre (1.6) for remote control and updating of the entire system of electronic traffic signs, direction signs and information panels.
A traffic sign, a direction sign, an information panel or other traffic signalization (hereinafter: traffic module (1.1)) is equipped with a special electronic radiofrequency identification and communication device (1.2) with a corresponding power supply. Traffic module (1.1) can be a static traffic sign with a fixed warning display, information or prohibitory sign, a mobile traffic sign with a fixed display, or a static or mobile electronic traffic sign with a dynamic display in the form of a bulb matrix, LED diodes, LCD display, etc. In case of a passive radiofrequency identification device (1.2) and a traffic sign with a fixed display power supply is not necessary. In other cases of active radiofrequency identification and communication or in case of a traffic sign with dynamic display power supply is provided through solar cells and/or replaceable accumulator batteries and/or network power supply. The memory of the special electronic radiofrequency identification and communication device (1.2) has recorded the data on the content of the traffic sign's display, the data on precise geographic coordinates of the traffic sign, and other information such as road designation, identification of the route, approaching major towns by the road and the data on important traffic signalization further on the road. The content of these information is not fixed, it can be updated from the remote control centre (1.6).
The radiofrequency identification and processing device (1.5) installed in a car (1.4) enables automatic remote reading of the content of the traffic module (1.1) information. The device (1.5) includes wired data interfaces, such as USB, CAN- bus and/or Ethernet, and wireless data interfaces, such as Bluetooth, ZigBee and/or WLAN, enabling connection of the device (1.5) with the existent inbuilt or temporarily installed navigation device in the car or with another information system in the car. The proposed radiofrequency identification and processing device (1.5) can serve as a correction factor for the existent navigation device, as it can forward to the latter the correction position coordinates of the traffic sign equipped with the device according to the invention if GPS signal is lost. It also enables automatic capturing of yet non-existent routes in digital navigation folders using the information acquired from traffic signs equipped with the device according to the invention. The radiofrequency identification and processing device (1.5) also includes an interface for connecting removable user contact or contactless smart card which serves as a medium for secure storage of sensitive information, such as data on the travelled route according to the position of passed by traffic modules (1.1) equipped with a special electronic radiofrequency identification and communication device (1.2) recording entry onto highway, interim control points and/or exit from the highway. Smart card can also include an "electronic wallet" to support electronic road tolling in an open flow. To carry out electronic road tolling the rules and tariff systems are also transmitted through radiofrequency identification connection between traffic signalization equipped with a special electronic device according to the invention and the radiofrequency identification and processing device installed in a car. The device according to the invention enables forwarding the information directly to the driver in the form of pre-recorded and/or synthesized voice messages, e.g. warnings about speed limits, traffic congestions and similar. Control processing centre (1.6) for remote control and updating of the entire system of electronic traffic signs, direction signs and information panels enables control and changing of the content of the messages that are transmitted to radiofrequency identification devices (1.5) installed in cars (1.4) by active radiofrequency identification devices (1.2). Control processing centre (1.6) consists of one or more server computers connected to internet network through TCP/IP connection, on which appropriate software with algorithms for remote control and updating of the traffic signs system is running. An important component of the control processing centre (1.6) is the database containing information on a set of all traffic modules (1.1) equipped with special electronic radiofrequency identification and communication devices (1.2).
The subject of the invention is the system of wireless capture and transmission of information from traffic modules in road traffic, shown in block scheme in Figure 1. The traffic module (1.1), which can be a traffic sign, a direction sign, an information panel and/or other traffic signalization, is equipped with a special electronic radiofrequency identification and communication device (1.2). Radiofrequency identification enables data transfer between the electronic device (1.2) and the radiofrequency identification processing device (1.5) installed in a car (1.4) or another mean of transport. Data communication between the electronic device (1.2) installed on the traffic module (1.1) and remote processing and control centre (1.6) goes through packet data transfer (1.3) (e.g. GPRS or UMTS) enabled by the mobile operator's system of base stations (1.9). The processing and control centre (1.6) is connected to the World Wide Web through TCP/IP connection (1.7). The connection (1.8) enables data transfer from the mobile operator's network and internet.
Figure 2 shows a block scheme of a special electronic radiofrequency identification and communication device (1.2), which is a component of a traffic module (1.1). The main part of the device is central processing unit (2.2), the firmware of which ensures reception and processing of data, transmitted from a remote processing and control centre (1.6), wireless data transmission to the radiofrequency identification and processing device (1.5) installed in a car (1.4), and optionally controls the screen on the display device of the electronic traffic module (1.1) according to the request of the remote processing and control centre (1.6). The core RAM memory (2.3) stores temporary information when executing the program code. The read-only memory (2.4) of the FLASH type (it can also be EEPROM or any other type of memory that stores the content also after the power supply is switched off) stores the firmware code of the device as well as electronic data on the traffic module (1.1) which the remote processing and control centre (1.6) send to the device (1.2) using GPRS or UMTS communication interface (2.7) and the external aerial (2.8), and which the device further on sends to the radiofrequency identification and processing device (1.5) in a car (1.4) using the radiofrequency transmitting-receiving unit (2.5) and the corresponding integrated RFID aerial (2.6). If the traffic module (1.1) is a traffic sign, direction sign, information panel or other traffic signalization with one of the forms of electronic display, such as LED, LCD or flashlights, the display can be controlled through the input/output unit (2.9). The power supply unit ensures the energy supply for the device by providing the appropriate operating voltage and the necessary operating current. Depending on the existent infrastructure power supply can be implemented as network supply, replaceable accumulator batteries or photovoltaic converter (solar cell).
The algorithm of the special electronic radiofrequency identification and communication device (1.2) with which the electronic traffic module (1.1) is equipped is shown in Figure 4. Switching on the power supply of the device puts the algorithm in the initial state START. Whether a data update exists on the side of the remote control processing centre (1.6) is checked in step (S4.1). If the answer is YES, data transfer from the control processing centre (1.6) and recording of this data into memory (2.4) are performed in step (S4.2). In case of a traffic module (1.1) with an electronic display the displayed screen or the content of the signalization can be changed through module (2.9) in step (S4.3) on the request of the remote control processing centre. If the answer in step (S4.1) is NO, whether the RFID transmitting/receiving unite (2.5) has detected a nearby vehicle (1.4) equipped with the device (1.5) is checked in step (S4.4). If the answer is NO, the algorithm returns to the initial state. If the answer is YES, the data on traffic signalization and other additional information, such as exact position, direction of driving, warnings about upcoming traffic signs, changing lanes, etc., is read from the memory (2.4) in step (S4.5), after which this data is sent to the device (1 .5) using the RFID transmitting/receiving unit (2.5) and the integrated aerial (2.6) in step (S4.6).
The block scheme of the radiofrequency identification and processing unit (1.5) adapted for installation in a car (1.4) is shown in Figure 3. The main part of the device (1.5) is the central processing unit (3.2), the firmware of which controls the operation of all the device components. Its basic function is detection, identification and reception of data from traffic modules (1.1 ) equipped with the electronic device (1.2). The core RAM memory (3.3) stores temporary information when executing the program code. The read-only memory (3.4) of the FLASH type (it can also be EEPROM or any other type of memory that stores the content also after the power supply is shut off) stores the firmware code of the device (1 .5) as well as electronic data on traffic modules (1.1) which the device (1.5) receives from the traffic module (1.1 ) equipped with an electronic device (1.2), and voice recordings and other data, necessary for functioning of the TTS (Text-To-Speech) unit (3.10). Detection, identification and reception of data using the radiofrequency identification technology are the tasks of the RFID transmitting/receiving unit (3.5) and the integrated RFID aerial (3.6). The central processing unit (3.2) also controls the input/output unit (3.7) which controls the input/output interfaces: interface (3.8) for the standard bus in the automobile industry "CAN-bus", interface (3.9), interface (3.9) to the external navigation device, and a special unit (3.10) for reproduction of pre-recorded and/or synthesized voice messages, notices and warnings. The interface (3.9) to the external navigation device can be wired, such as USB, Ethernet, CAN-bus, RS- 232, or wireless, such as Bluetooth, ZigBee or WLAN. The driver manages the device (1.5) using the graphic user interface (3.1 1 ). The interface (3. 1 ) also serves for configuring the parameters of the device and choosing the mode of device operation, such enabling and disabling voice messages, connectivity to external navigation device or other modules inside the car based on CAN-bus. The power supply unit (3.12) ensures the energy supply for the device by providing the appropriate stabilised operating voltage and the necessary operating electric current. The radiofrequency identification and processing device (1.5) also includes an interface for contact or contactless user smart card (3.13) with which a removable contact or contactless user smart card (3.1) connects with the device (1.5). User smart card (3.1) securely stores the data on the travelled route, and the data necessary for road tolling and bridge tolling, as well as the electronic wallet from which the used amount is subtracted for individual payments. The data on the user smart card (3.1) are secured with appropriate cryptographic algorithms. When inserting or approaching the contact or contactless user card (3.1) (in)to the device (1.5), the procedure of reciprocal authenticity verification is performed, with which possible abuses of the user card (3.1) or the device (1.5) are prevented.
The functioning algorithm of the radiofrequency identification and processing device (1.5) is shown in Figure 5. When turning on the device (1.5) with the START key, initialization of the device is first performed in step (S5.1), which checks the functioning of all the device (1.5) components and initializes the graphic user interface (3.11). In step (S5.2) it is then checked if the contact or contactless user smart card (3.1) is correctly inserted or approached. If the user card (3.1) is not inserted, the device does not function (1.5). When the initialization succeeds and the user smart card (3.1) is present, radiofrequency identification module (3.5) is turned on in step (S5.3) and active detection of traffic modules (1.1) equipped with a special electronic device (1.2) starts with step (S5.4). After detecting a traffic module (1.1) equipped with a special electronic device (1.2), data transfer between the electronic device (1.2) installed on the traffic module and the radiofrequency identification and processing device (1.5) in the car is performed in step (S5.5). Further in the algorithm decisions according to the status of the message and the setting of the device are made. Whether the option of voice messages is enabled is checked in step (S5.6). If this option is enabled, the message is synthesized and reproduced in step (S5.7). In step (S5.8) connection with an exterior navigation device is checked. If an external navigation device (1.2) is connected with the processing device (1.5), navigation data is sent to the external navigation device in step (S5.9). This enables and supports adaptive navigation. In step (S5.10) data is recorded on the sure smart card (3.1) and eventually the toll costs are calculated and subtracted from the credit stored on the user card (3.1). In step (S5.11) data is processed and shown on the graphic user interface. The algorithm then returns to the state of detecting new traffic modules (1.1) equipped with the electronic device (1.2). The system of wireless transfer of information from traffic signs, direction signs, information panels and other traffic signalization in road traffic according to the presented invention consists of a number of traffic modules (1.1) with the device (1.2) which are operated and controlled from the processing centre (1.6) through different data and mobile connections (e.g. GPRS or UMTS). The system can also consist of a number of cars (1.4) equipped with the device (1.5). Each special radiofrequency identification and communication device (1.2) with which traffic modules (1.1) are equipped has a unique identifier (UID) recorded in the read-only memory, on the basis of which every device (1.2) and the corresponding traffic module (1.1) are entered in the database of the remote processing and control centre (1.6). The operator of the processing centre can thus simply control and update the content of the data that an individual device (1.2) with the corresponding traffic module (1.1) anywhere in the field displays and transmits to the by-passing cars (1.4) equipped with the processing device (1.5) according to the invention. Unique identifier UID of an individual special radiofrequency identification and communication device (1.2) is with other traffic information also transmitted to the processing device (1.5) installed in the car, when the latter approaches the traffic module (1.1) equipped with the device (1.2). On the basis of these UIDs the device records the history of all traffic modules (1.1) equipped with the device (1.2) on the route, and securely stores them on the user card (3.1).
The presented invention eliminates the mentioned disadvantages of the existent navigation systems, as it is able to ensure additional information on a newly occurred traffic regime on the basis of traffic signalization equipped with the system according to the invention, and thus enables adaptive navigation. Users of road traffic can nowadays choose among numerous different useful navigation solutions in the form of pre-fitted navigation devices or portable handy navigation devices the users can install in their vehicle themselves. Most mentioned navigation devices have the option of updating digital maps saved in the memory of the device. But these updates mostly do not include the latest traffic regime changes, such as new traffic arrangements, new traffic signalization, newly open roads, new roundabout exits, etc. In such cases navigation using a non-updated digital map can be made very difficult, useless and sometimes even dangerous. Highway network operators often face the problem of efficient, reliable and secure toll collection. The advantage of the proposed system according to the invention is that it enables simple road tolling in an open flow as traffic signs at entries, exists and other control points on the highway can be upgraded with a special electronic radiofrequency identification and communication device. On the basis of the information stored in these specific places in an electronic form a special radiofrequency identification and processing device in a car can perform exact calculation of road tolls and subtract the amount from the pre-charged credit on the electronic wallet stored on a removable user contactless or contact smart card. The user smart card should serve as a medium for secure storage of information on the route travelled by the user.
An additional advantage of the system according to the invention is that the system enables remote updating of the content of the traffic signalization and the information panels using electronic radiofrequency identification and communication device which is a part of the traffic module according to the invention. The communication device of the traffic sign according to the invention uses packet data transfer through an existent mobile network (e.g. GPRS or UMTS) to transfer data from and to the control processing centre (1.6). The information on the change of the traffic regime is thus forwarded to the driver driving on a certain part of the road in only a few seconds after the new state of the traffic regime has been set in the control processing centre. This way road service that would change the traffic regime by mechanically changing traffic signalization or setting it up anew in not necessary.

Claims

Patent claims
1. A system of wireless transfer of information from traffic signs, direction signs and information panels, characterized in that the system consists of three components: the traffic module (1.1) equipped with a special radiofrequency identification and communication device (1.2), a radiofrequency identification and processing device (1.5) designed to be installed in a car or other mean of transport, and a processing and control centre (1.6) for remote administration of one or more traffic modules (1.1) equipped with devices (1.2); that the traffic module can be a traffic sign, a direction sign and/or other traffic signalization; that radiofrequency identification enables transfer of data between the electronic device (1.2) and the radiofrequency identification processing device (1.5) installed in a car (1.4) or another personal or cargo vehicle; that the data communication between the electronic device (1.2) installed on a traffic module (1.1) and the remote processing and control centre (1.6) uses packet data transfer, such as GPRS or UMTS, enabled by the system of mobile operator's base stations; that the processing and control centre (1.6) is connected to the World Wide Web through TCP/IP connection (1.7); that the connection (1.8) enables data transfer from mobile operator's network and the internet.
2. A system of wireless transfer of information from traffic signs, direction signs and information panels in road traffic according to claim 1 , characterized in that the freeware of the central processing unit (2.2) ensures reception and processing of data transmitted from the remote processing and control centre (1.6), and wireless transmission of information to the radiofrequency identification and processing device (1.5) installed in a car (1.4) and optionally controls the screen of the electronic traffic module (1.1) display on the request of the remote processing and control centre (1.6); that the core RAM memory (2.3) is used for storing temporary information in executing the program code; that the main read-only memory of the FLASH, EEPROM or another type that stores the content also after the power supply is shut off, stores the firmware code of the device, the unique identifier (1.2) and the electronic data on the traffic module (1.1) which the remote processing and control centre (1.6) sends to the device (1.2) using the GPRS or UMTS communication interface (2.7) and the external aerial (2.8); that the device (1.2) through radiofrequency transmitting/receiving unit (2.5) and the corresponding integrated RFID aerial (2.6) further transmits this data to the radiofrequency identification and processing device (1.5) in a car (1.4); that if the traffic module (1.1) is a traffic sign, direction sign, information panel or another traffic signalization with one of the forms of electronic display, such as LED, LCD or flashlights, the screen can be controlled through the input/output unit (2.9); that the power supply unit (2.1) ensures the energy supply to the device by ensuring appropriate operating voltage and necessary operating current; that depending on the existent infrastructure power supply can be implemented as network supply, replaceable accumulator batteries and/or photovoltaic converter (solar cell).
3. A system of wireless transmission of data from traffic signs, direction signs and information panels in road traffic according to claims 1 and 2, characterized in that turning on power supply of the device (1.2) sets the algorithm to the initial state START; that in step (S4.1) it is checked whether a data update exists on the side of the remote control processing centre (1.6); that if the answer is YES transfer of data from the centre (1.6) is performed and the data is recorded in the memory (2.4); that in case of a traffic module (1.1) with an electronic display in step (S4.3) at the request of the remote control processing centre (1.6) the displayed content or the signalization content can be changed through module (2.9); that if the answer is NO, in step (S4.4) it is checked if the RFID transmitting/receiving unit (2.5) has detected a nearby vehicle (1.4) equipped with the device (1.5); that if the answer is NO, the algorithm returns to initial state; that if in step (S4.4) the answer is YES, the data on traffic signalization and other additional information, such as exact location, direction of driving, warnings about approaching traffic signs, merging into lanes, etc., is read from the memory in step (S4.5), and this data is then sent to the device (1.5) using the RFID transmitting/receiving unit (2.5) and the integrated aerial (2.6) in step (S4.6).
4. A system of wireless transmission if information from traffic signs, direction signs and information panels in road traffic according to claims 1 , 2 and 3, characterized in that the main part of the device (1.5) is the central processing unit (3.2) the firmware of which controls the operation of all the device (1.5) components; that the basic functions of the device (1.5) is detection, identification and reception of data from traffic modules (1.1) equipped with electronic devices (1.2); that the core RAM memory (3.3) stores temporary information in executing the program code; that the readonly memory (3.4) of FLASH, EEPROM or other type that can store the data content also after the power supply is turned off, stores the firmware code of the device (1.59 as well as electronic data on traffic modules (1.1) that the device receives from traffic modules (1.1) equipped with electronic devices (1.2), voice recordings and other data necessary for functioning of the TTS unite (3.10); that TTS is a speech synthesizer; that detection, identification and reception of data using radiofrequency identification technology are ensured by the RFID transmitting/receiving unit (3.5) and the integrated RFID aerial (3.6); that the central processing unit (3.2) further controls the input/output unit (3.7), which controls the input/output interfaces: interface (3.8) for a standard bus in automobile industry "CAN-bus", interface (3.9) to the external navigation device, and a special unit (3.10) for reproduction of pre-recorded and/or synthesized voice messages, notices and warnings; that the interface (3.9) to the external navigation device can be wired, such as USB, Ethernet, CAN-bus or RS-232, or wireless, such as Bluetooth, ZigBee or WLAN; that the driver controls the device (1.5) through a user graphic interface (3.11); that the interface (3.11) serves also for configuring the parameters of the device and choosing the mode of device operation, e.g. enabling or disabling voice messages, connectivity to external navigation device or other modules inside the car based on CAN-bus; that the power supply unit (3.12) ensures energy supply of the device by ensuring appropriate stabilized operating voltage and the necessary operating current; that the radiofrequency identification and processing device (1.5) includes also an interface for contact or contactless user smart card (3.13) through which the user contact or contactless smart card (3.1) connects to the device (1.5); that the user smart card (3.1) securely stores that data on the travelled route and the data necessary for road tolling and bridge tolling as well as the electronic wallet from which the amount used for individual payments is subtracted; that the data on the user smart card (3.1) are secured with appropriate cryptographic algorithms; that when inserting or approaching the contact or contactless user card (3.1) (in)to the device (1.5) the procedure of reciprocal authenticity verification is performed with which possible abuses of the user card (3.1) or the device (1.5) are prevented.
5. A system of wireless transmission of information from traffic signs, direction signs and information panels in road traffic according to claims 1 to 4, characterized in that when turning on the device (1.5) with the START key, first initialization of the device is performed in step (S5.1), which includes verification of all the device components and initialization of the user graphic interface (3.11); that afterwards in step (S5.2) it is checked whether the contact or contactless user smart card (3.1) is properly inserted or approached; that if the user card (3.1) is not inserted, the device (1.5) does not function; that if initialization of the device (1.5) has been successful and the user smart card is inserted, radiofrequency identification module (3.5) turns on in step (S5.3), and active detection of traffic modules (1.1) equipped with the special electronic device (1.2) is performed in step (S5.4); that after a traffic module (1.1) equipped with the special electronic device(1.2) has been detected, the process of data transfer between the electronic device (1.2) installed on the traffic module (1.1) and the radiofrequency identification and processing device (1.5) in a car (1.4) is performed in step (S5.5); that further in the algorithm decisions are made according to the status of the message and the device setting; that in step (S5.6) it is checked whether voice alerting option is enabled, in which case synthesis of the message is performed and the message is reproduced in step (S5.7); that the next step (S5.7) checks if the device (1.5) is connected to an external navigation device (1.2); that if the external navigation device (1.2) is connected to the processing device (1.5), navigation data is sent to the external navigation device in step (S5.9); that this enables and supports adaptive navigation; that in step (S5.10) data is recorded to the user smart card (3.1) and eventually road tolls and bridge tolls are calculated and the amount is subtracted from the credit on the user smart card (3.1); that in step (S5.11) data is processed and displayed on the user graphic interface; that afterwards the algorithm returns to the state of detecting new traffic modules (1.1) equipped with the electronic device (1.2).
6. A system of wireless transmission of information from traffic signs, direction signs and information panels in road traffic according to claim 1 , characterized in that the device (1.2) wirelessly by using radiofrequency technology transmits the information on traffic signalization recorded in the memory (2.4) to one or more radiofrequency identification and processing devices (1.5) located in its range.
7. A system of wireless transmission of information from traffic signs, direction signs ad information panels in road traffic according to claims 1 to 6, characterized in that the radiofrequency identification and processing device (1.5) using the interface to the external navigation device (3.9) in the car enables transmission of correction navigation data or simultaneous updating of the external navigation device's digital map.
8. A system of wireless transmission of information from traffic signs, direction signs and information panels in road traffic according to claims 1 to 6, characterized in that the remote processing and control centre (1.6) enables both updating the content of traffic signalization and updating of the program code of the electronic radiofrequency identification and communication device (1.2) installed on the traffic module (1.1).
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