EP0441576A2 - Crash warning system - Google Patents
Crash warning system Download PDFInfo
- Publication number
- EP0441576A2 EP0441576A2 EP19910300891 EP91300891A EP0441576A2 EP 0441576 A2 EP0441576 A2 EP 0441576A2 EP 19910300891 EP19910300891 EP 19910300891 EP 91300891 A EP91300891 A EP 91300891A EP 0441576 A2 EP0441576 A2 EP 0441576A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- crash
- warning
- receiver
- vehicle
- transmitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/161—Decentralised systems, e.g. inter-vehicle communication
- G08G1/162—Decentralised systems, e.g. inter-vehicle communication event-triggered
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
- The present invention relates to warning systems, and is particularly concerned with providing a warning system to alert motorists approaching traffic hazards.
- Motorway traffic is notorious for its apparent disregard for conditions of poor visibility, in that drivers do not seem to reduce their speed sufficiently in fog or in rain when visibility is limited. This is the cause of many accidents, with damage and loss of life being compounded by vehicles colliding with the wreckage already on the carriageway.
- The present invention seeks to provide a system whereby a vehicle involved in a collision automatically sends a warning signal receivable by following traffic, warning drivers to slow down and stop.
- According to the present invention, a vehicle crash warning system comprises a transmitter unit linked to a crash sensor and a receiver unit capable of receiving signals from the transmitter, an alarm being activated by the receiver when a signal is received.
- Preferably the transmitter unit is a relatively short range radio transmitter, and the crash sensor may be a conventional inertia switching device operable on an abrupt acceleration or impact. Alternatively, the crash sensor may be a switching device linked to the vehicle's bumper to detect deformation of the bumper, or movement of the bumper relative to the vehicle body. As a further alternative, a flexible fluid-filled tube may be attached to the vehicle's bumper bars, with a fluid-pressure operated switch to register impacts on the bumper bars.
- The receiver unit is preferably a radio receiver tuned to the transmitter frequency, and advantageously includes circuitry to discriminate between a transmitter which is approaching the receiver and one which is receding therefrom, and to operate the alarm only when a transmitting transmitter is being approached.
- In a most preferred arrangement, a directional antenna is provided for the receiver so that only signals emanating from sources in front of the vehicle are registered. Preferably an arc of about 90o either side of the vehicle's centreline is covered by the receiver antenna. The antenna for the transmitter part of the device is preferably omnidirectional, so that effective warning signals are transmitted from crashed vehicles irrespective of the direction in which the crashed vehicles face once stopped.
- A preferred embodiment of the system will now be described in detail. With reference to the accompanying drawings, in which:
- Figure 1 is a schematic view of a crash warning unit installed in a vehicle; and
- Figure 2 is a schematic diagram of the crash warning unit to a larger scale .
- Referring now to Figure 1, the installation comprises a
crash warning unit 1 mounted for example to the vehicle's fascia. Theunit 1 houses a transmitter T, an inertia switch I sensitive to abrupt acceleration or deceleration of the vehicle in any direction, and a receiver unit R linked to anaudible alarm 2 and avisual alarm 3 situated in the driver's compartment of the vehicle. The power source for the transmitter, the receiver, and the alarm devices may be the vehicle's electrical system, or an independent source such as a battery may be provided. The independent source may be a battery rechargeable from the vehicle's own system. - The receiver unit is preferably housed in the same enclosure as the transmitter, and has external connections to a transmitting aerial 4 and a receiving aerial 5. The receiver R may include circuitry to discriminate between approaching and receding sources of transmission. This may be done either by sampling the signal strength at discrete intervals and comparing the strengths of successive signal samples, the
alarm 2 being sounded if signal strength is found to be increasing, or by using a Doppler shift in the frequency of the transmission to discriminate between approaching and receding sources. It is implicit that the transmitters T of all the units in a system will be tuned to a predetermined frequency, thus making Doppler shift usable as a discriminating characteristic. Alternately, the radio signal from the transmitter T may be emitted as a train of discrete pulses at a set interval, and the shift of interval in the pulses will indicate an approaching source. - In use, the system may be permanently installed in a vehicle and wired to the vehicle's electricity supply P. When the vehicle is involved in a rapid deceleration such as in a crash, the radio transmitter T will be actuated by the inertia switch I and will commence transmission on the warning frequency, via the omnidirectional aerial 4.
- The inertia switch I may be of conventional construction, and maybe identical to switches currently installed in fuel injected vehicles to cut off power to the fuel pump in the event of a crash. In such vehicles, use may be made of the existing inertia switch to control the transmitter T of a crash warning unit.
- Vehicles approaching the crash site fitted with like warning units will pick up the warning radio signal via the aerial 5, and the receiver will activate the
alarm devices - Clearly, vehicles immediately 'downstream' of the crash site will receive the radio signal and their alarm devices will not be operated since the receiver will detect a receding radio source.
- The receiver circuitry can be simplified by omitting the discriminator circuits, if the aerial 5 of the receiver R is arranged to be a
directional antenna 5 oriented to receive only signals emanating from a source in front of the receiving vehicle. In such an arrangement, vehicles 'downstream' of a crash site will not have their alarms activated since the signal sources will not be within the arc of detection of their receivingantennae 5. - To prevent oncoming traffic on an unobstructed carriageway of a motorway from receiving spurious warning signals emanating from crashed vehicles on the other carriageway, different frequencies could be provided, for example Northbound drivers using a first frequency and Southbound drivers being assigned a second frequency. By providing selector controls 10 on the transmitter T and receiver R for the driver, the appropriate transmission and reception frequency could be selected for each part of a journey as the driver negotiates the motorway network.
- As an alternative to the receiver R discriminating between approaching and receding vehicles, the transmitter T may be made directional so that signals are emitted only rearwardly from the vehicle. Thus, only following vehicles would be alerted but difficulty might be encountered if a crash occurs on or after a bend in the road, or if a crashed vehicle slews round so as to lie across the road.
- As an alternative to the inertia switch I, the transmitter T may be activated by a switch S mounted on the vehicle body to detect impact. Such a switch may be closed by a deformation of the vehicle bumper 9, or may comprise a deformable tube filled with fluid and provided with a pressure operated switch to activate the tansmitter on impact.
- In order that vehicles fitted with the crash warning system may afford a warning to nearby vehicles not so fitted, a connection 6 to the vehicle's lighting circuit 7 may be made, so that the fitted vehicle's lights could be flashed to provide a visual indication that a crash site is being approached. Preferably the brake lights would be operated, since operation of the hazard lights when in motion is dangerous in that it prevents direction signals from being given.
- As an alternative to permanent fixing in a vehicle, it is envisaged that a self-contained portable warning unit may be provided. Such a unit comprises a preferably fireproof and impact resistant enclosure containing the transmitter, receiver, crash sensor, power source and alarm devices and provided externally with controls for activating the unit (on/off switch), battery test indicator, and frequency selector if appropriate.
- Such a unit could be carried by the driver and attached, for example by suction cups or adhesive pads, to a convenient point in the vehicle, to be activated when the vehicle is involved in a crash. The power for the unit could alternatively be supplied from the vehicle's supply P, e.g. via the cigar lighter socket.
- Both the portable and the permanently installed system may include a
manual override switch 8, enabling the motorist to activate the transmitter even when no impact has occurred with his vehicle. - In the case of the portable or permanently installed device, a timer may be included so that the duration of transmission of the warning signal is limited to a set time, for example five minutes. This will avoid overloading an area with radio transmissions which might interfere with communications by emergency services.
- To provide an indication of the urgency of a warning given by the system, the alarm device such as a lamp or a horn may be operated proportionately to the strength of the received signal, so that for example the alarm sound increases in loundness as the crash site is approached.
- It is further envisaged that the emergency services could monitor the frequency of transmission of the units, in order that the earliest possible arrival of police and ambulance services at the crash scene.
Claims (16)
- A crash warning system for motor vehicles, comprising a plurality of units (1) for mounting in respective vehicles, each unit comprising a transmitter (T) activated by a crash sensor (S, I) for sending a warning signal, and a receiver (R) capable of activating an alarm (2, 3) in the driving compartment on receipt of said warning signal.
- A crash warning system according to Claim 1, wherein the warning signal is a radio signal transmitted at a predetermined frequency, and the receiver (R) is a radio receiver tuned to that frequency.
- A crash warning system according to Claim 1 or Claim 2, wherein the crash sensor is an inertia switch (T) operated by an acceleration or deceleration of the vehicle associated with an impact.
- A crash warning system according to Claim 1 or Claim 2, wherein the crash sensor (S) is activated by a deformation of the vehicle structure.
- A crash warning system according to Claim 1 or Claim 2, wherein the crash sensor is a pressure switch operated by fluid contained in a deformable reservoir.
- A crash warning system according to any of Claims 2 to 5, wherein each unit (1) has a transmitter antenna (4) capable of transmitting warning signals in all directions, and a directional receiver antenna (5) capable of receiving signals from a region ahead of the vehicle only.
- A crash warning system according to Claims 2 to 6, wherein the transmission frequency of the radio warning signal and the tuning frequency of the receiver may be selected from a plurality of preset frequencies.
- A crash warning system according to Claim 2, wherein the receiver includes circuitry to sample the strength of a received signal at discrete intervals and to compare the strengths of successive samples, and circuitry to trigger the alarm if the signal strength of the latest sample exceeds that of the previous sample.
- A crash warning system according to any preceding Claim, wherein the alarm activated by the receiver comprises an audible alarm (2).
- A crash warning system according to Claim 9, wherein the receiver includes circuitry to detect the strength of the warning signal received, the output of the alarm being increased as the warning signal strength increases.
- A crash warning system according to any preceding Claim, wherein the receiver not only activates the alarm in receipt of a warning signal, but also activates an external warning device (7) mounted on the vehicle.
- A crash warning system according to Claim 11, wherein the external warning device (7) is the vehicle's brake lights.
- A crash warning unit (1) for mounting to a vehicle, comprising a crash sensor (S, I) coupled to a transmitter (T) and a power source (P) so as to activate the transmitter (T) to emit a warning signal when a crash is sensed, and a receiver (R) capable of receiving such a warning signal and coupled to an alarm to activate the alarm (2, 3) when a warning signal is detected.
- A crash warning unit according to Claim 13, wherein the crash sensor is an inertia switch (I) operated by abrupt acceleration, and the transmitter (T) and receiver (R) are a radio transmitter and receiver operating on the same frequency.
- A crash warning unit according to Claim 14, wherein the operating frequency can be selected from a plurality of preset frequencies.
- A crash warning unit according to Claim 14, wherein a transmission antenna (4) is associated with the transmitter to provide omnidirectional transmission of warning signals, and a directional antenna (5) is associated with the receiver to detect signals emanating from within a predetermined arc relative to the unit (1), the unit being mountable in the vehicle to detect signals emanating from a region in front of the vehicle.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9002951 | 1990-02-09 | ||
GB909002951A GB9002951D0 (en) | 1990-02-09 | 1990-02-09 | Crash warning system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0441576A2 true EP0441576A2 (en) | 1991-08-14 |
EP0441576A3 EP0441576A3 (en) | 1992-06-03 |
Family
ID=10670717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19910300891 Pending EP0441576A3 (en) | 1990-02-09 | 1991-02-04 | Crash warning system |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0441576A3 (en) |
CA (1) | CA2036016A1 (en) |
GB (2) | GB9002951D0 (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993016453A1 (en) * | 1992-02-18 | 1993-08-19 | Lochead Richard Charles Kearne | Road accident warning system |
EP0627719A2 (en) * | 1993-03-31 | 1994-12-07 | Settimo Martinello | A vehicle-mounted device for identifying and signalling the presence of danger and/or hazards ahead to a driver, and/or for communicating the presence of such to other vehicles |
GB2289359A (en) * | 1994-05-12 | 1995-11-15 | Dennis Roger Nield | Safety device for a motor vehicle |
ES2101630A1 (en) * | 1994-05-10 | 1997-07-01 | De Prado Juan Antonio Aguirre | Automatic emergency system for vehicles. |
FR2752635A1 (en) * | 1996-08-26 | 1998-02-27 | Krebs Serge | DANGER SIGNAL TRANSMISSION SYSTEM FOR ROAD VEHICLES |
FR2769740A1 (en) * | 1997-10-09 | 1999-04-16 | Alain Jean Charles Couly | Anti-collision radio beacon activated automatically on vehicle impact |
ES2136567A1 (en) * | 1997-11-19 | 1999-11-16 | Cruz Lorenzo Juan Roberto | Motor-vehicle accident emergency locator |
WO1999066475A1 (en) * | 1998-06-17 | 1999-12-23 | Lear Corporation | Fast braking warning system |
FR2785429A1 (en) * | 1998-11-02 | 2000-05-05 | Armando Baptista | Road accident warning information collection and display mechanism, has car placed unit radio wave distance information and emergency information collecting/controlling radiated warning information |
ES2144376A1 (en) * | 1998-07-21 | 2000-06-01 | Garaje Sofer S L | Precaution warning device for vehicles |
FR2790157A1 (en) * | 1999-02-19 | 2000-08-25 | Renault | Emergency information vehicle transmission transfer technique having first vehicle transmitter passing emergency information/type and second vehicle receiving/passing second vehicle driver |
GB2349000A (en) * | 1999-04-14 | 2000-10-18 | Roke Manor Research | Traffic warning device |
EP1049065A1 (en) * | 1999-04-28 | 2000-11-02 | Renault | Method and device to exchange alarm information between vehicles |
ES2165776A1 (en) * | 1999-09-01 | 2002-03-16 | Carrera Felipe Dominguez | Emergency and localisation system by waves. Sonder-Car |
EP1243469A2 (en) * | 2001-03-20 | 2002-09-25 | Giorgio Giuliano Pasqualin | Device for signaling a stopped vehicle involved in an accident |
US6615137B2 (en) * | 2001-06-26 | 2003-09-02 | Medius, Inc. | Method and apparatus for transferring information between vehicles |
US8001860B1 (en) | 2004-11-09 | 2011-08-23 | Eagle Harbor Holdings LLC | Method and apparatus for the alignment of multi-aperture systems |
US8020028B1 (en) | 2002-04-24 | 2011-09-13 | Eagle Harbor Holdings | Application management system for mobile devices |
US8583292B2 (en) | 2001-04-24 | 2013-11-12 | Eagle Harbor Holdings, Llc | System and method for restricting access to vehicle software systems |
WO2014022854A1 (en) * | 2012-08-03 | 2014-02-06 | Charles Rashid | Portable collision warning apparatus |
US9358924B1 (en) | 2009-05-08 | 2016-06-07 | Eagle Harbor Holdings, Llc | System and method for modeling advanced automotive safety systems |
US9989637B2 (en) | 2012-08-03 | 2018-06-05 | Safie Holdings LLC | Portable collision warning apparatus |
US10298735B2 (en) | 2001-04-24 | 2019-05-21 | Northwater Intellectual Property Fund L.P. 2 | Method and apparatus for dynamic configuration of a multiprocessor health data system |
US10361802B1 (en) | 1999-02-01 | 2019-07-23 | Blanding Hovenweep, Llc | Adaptive pattern recognition based control system and method |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8352400B2 (en) | 1991-12-23 | 2013-01-08 | Hoffberg Steven M | Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore |
GB2325075A (en) * | 1997-05-06 | 1998-11-11 | Hugh Bevan Strafford | Emergency transceiver for a vehicle |
US7904187B2 (en) | 1999-02-01 | 2011-03-08 | Hoffberg Steven M | Internet appliance system and method |
US8364136B2 (en) | 1999-02-01 | 2013-01-29 | Steven M Hoffberg | Mobile system, a method of operating mobile system and a non-transitory computer readable medium for a programmable control of a mobile system |
GB0300351D0 (en) * | 2003-01-08 | 2003-02-05 | Swift Jonathan R | A slow moving or stationery traffic indicator system with vehicle status monitoring |
US8417490B1 (en) | 2009-05-11 | 2013-04-09 | Eagle Harbor Holdings, Llc | System and method for the configuration of an automotive vehicle with modeled sensors |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1491907A1 (en) * | 1966-01-28 | 1969-07-17 | Franz Boehm | Mobile HF traffic warning radio with automatic accident switch, breakdown notification and HF call for help |
FR2240490A1 (en) * | 1973-08-08 | 1975-03-07 | Gendrot Andre | Vehicle accident signalling system - emitts radio signal to warn approaching vehicles |
DE2432713A1 (en) * | 1974-07-08 | 1976-01-29 | Robi Rushing | Automatic hazard warning signal - with crash sensors spaced around car body and linked to hazard relay |
FR2629404A1 (en) * | 1988-03-31 | 1989-10-06 | Duval Electronique Sarl Bernar | Accident warning installation for a car |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2248761A5 (en) * | 1973-10-23 | 1975-05-16 | Thomson Csf | |
DE2912547C2 (en) * | 1979-03-29 | 1984-05-17 | Repa Feinstanzwerk Gmbh, 7071 Alfdorf | Automatic emergency call system for vehicles |
-
1990
- 1990-02-09 GB GB909002951A patent/GB9002951D0/en active Pending
-
1991
- 1991-02-04 GB GB9102386A patent/GB2241367A/en not_active Withdrawn
- 1991-02-04 EP EP19910300891 patent/EP0441576A3/en active Pending
- 1991-02-08 CA CA 2036016 patent/CA2036016A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1491907A1 (en) * | 1966-01-28 | 1969-07-17 | Franz Boehm | Mobile HF traffic warning radio with automatic accident switch, breakdown notification and HF call for help |
FR2240490A1 (en) * | 1973-08-08 | 1975-03-07 | Gendrot Andre | Vehicle accident signalling system - emitts radio signal to warn approaching vehicles |
DE2432713A1 (en) * | 1974-07-08 | 1976-01-29 | Robi Rushing | Automatic hazard warning signal - with crash sensors spaced around car body and linked to hazard relay |
FR2629404A1 (en) * | 1988-03-31 | 1989-10-06 | Duval Electronique Sarl Bernar | Accident warning installation for a car |
Cited By (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993016453A1 (en) * | 1992-02-18 | 1993-08-19 | Lochead Richard Charles Kearne | Road accident warning system |
EP0627719A2 (en) * | 1993-03-31 | 1994-12-07 | Settimo Martinello | A vehicle-mounted device for identifying and signalling the presence of danger and/or hazards ahead to a driver, and/or for communicating the presence of such to other vehicles |
EP0627719A3 (en) * | 1993-03-31 | 1996-04-24 | Settimo Martinello | A vehicle-mounted device for identifying and signalling the presence of danger and/or hazards ahead to a driver, and/or for communicating the presence of such to other vehicles. |
ES2101630A1 (en) * | 1994-05-10 | 1997-07-01 | De Prado Juan Antonio Aguirre | Automatic emergency system for vehicles. |
GB2289359A (en) * | 1994-05-12 | 1995-11-15 | Dennis Roger Nield | Safety device for a motor vehicle |
FR2752635A1 (en) * | 1996-08-26 | 1998-02-27 | Krebs Serge | DANGER SIGNAL TRANSMISSION SYSTEM FOR ROAD VEHICLES |
WO1998009264A1 (en) * | 1996-08-26 | 1998-03-05 | Baro, Alain | System for transmitting a danger signal for road vehicles |
FR2769740A1 (en) * | 1997-10-09 | 1999-04-16 | Alain Jean Charles Couly | Anti-collision radio beacon activated automatically on vehicle impact |
ES2136567A1 (en) * | 1997-11-19 | 1999-11-16 | Cruz Lorenzo Juan Roberto | Motor-vehicle accident emergency locator |
WO1999066475A1 (en) * | 1998-06-17 | 1999-12-23 | Lear Corporation | Fast braking warning system |
US6359552B1 (en) | 1998-06-17 | 2002-03-19 | Ut Automotive Dearborn, Inc | Fast braking warning system |
ES2144376A1 (en) * | 1998-07-21 | 2000-06-01 | Garaje Sofer S L | Precaution warning device for vehicles |
FR2785429A1 (en) * | 1998-11-02 | 2000-05-05 | Armando Baptista | Road accident warning information collection and display mechanism, has car placed unit radio wave distance information and emergency information collecting/controlling radiated warning information |
US10361802B1 (en) | 1999-02-01 | 2019-07-23 | Blanding Hovenweep, Llc | Adaptive pattern recognition based control system and method |
FR2790157A1 (en) * | 1999-02-19 | 2000-08-25 | Renault | Emergency information vehicle transmission transfer technique having first vehicle transmitter passing emergency information/type and second vehicle receiving/passing second vehicle driver |
GB2349000A (en) * | 1999-04-14 | 2000-10-18 | Roke Manor Research | Traffic warning device |
EP1049065A1 (en) * | 1999-04-28 | 2000-11-02 | Renault | Method and device to exchange alarm information between vehicles |
FR2793056A1 (en) * | 1999-04-28 | 2000-11-03 | Renault | METHOD AND DEVICE FOR COMMUNICATING ALARM INFORMATION BETWEEN VEHICLES |
ES2165776A1 (en) * | 1999-09-01 | 2002-03-16 | Carrera Felipe Dominguez | Emergency and localisation system by waves. Sonder-Car |
EP1243469A2 (en) * | 2001-03-20 | 2002-09-25 | Giorgio Giuliano Pasqualin | Device for signaling a stopped vehicle involved in an accident |
EP1243469A3 (en) * | 2001-03-20 | 2006-02-15 | Giorgio Giuliano Pasqualin | Device for signaling a stopped vehicle involved in an accident |
US10102013B2 (en) | 2001-04-24 | 2018-10-16 | Northwater Intellectual Property Fund, L.P. 2 | Method and system for dynamic configuration of multiprocessor system |
US9645832B2 (en) | 2001-04-24 | 2017-05-09 | Dan A. Preston | Dynamic configuration of a home multiprocessor system |
US8583292B2 (en) | 2001-04-24 | 2013-11-12 | Eagle Harbor Holdings, Llc | System and method for restricting access to vehicle software systems |
US11042385B2 (en) | 2001-04-24 | 2021-06-22 | Micropairing Technologies Llc. | Method and system for dynamic configuration of multiprocessor system |
US9697015B2 (en) | 2001-04-24 | 2017-07-04 | Eagle Harbor Holdings, Llc | Vehicle audio application management system using logic circuitry |
US10387166B2 (en) | 2001-04-24 | 2019-08-20 | Northwater Intellectual Property Fund L.P. 2 | Dynamic configuration of a multiprocessor system |
US10298735B2 (en) | 2001-04-24 | 2019-05-21 | Northwater Intellectual Property Fund L.P. 2 | Method and apparatus for dynamic configuration of a multiprocessor health data system |
US9652257B2 (en) | 2001-04-24 | 2017-05-16 | Eagle Harbor Holdings, Llc | Vehicle safety system |
US9811354B2 (en) | 2001-04-24 | 2017-11-07 | Eagle Harbor Holdings, Llc | Home audio system for operating different types of audio sources |
US6615137B2 (en) * | 2001-06-26 | 2003-09-02 | Medius, Inc. | Method and apparatus for transferring information between vehicles |
US8020028B1 (en) | 2002-04-24 | 2011-09-13 | Eagle Harbor Holdings | Application management system for mobile devices |
US8001860B1 (en) | 2004-11-09 | 2011-08-23 | Eagle Harbor Holdings LLC | Method and apparatus for the alignment of multi-aperture systems |
US9358924B1 (en) | 2009-05-08 | 2016-06-07 | Eagle Harbor Holdings, Llc | System and method for modeling advanced automotive safety systems |
US9315150B2 (en) | 2012-08-03 | 2016-04-19 | Safie Holdings LLC | Portable collision warning apparatus |
US9989637B2 (en) | 2012-08-03 | 2018-06-05 | Safie Holdings LLC | Portable collision warning apparatus |
WO2014022854A1 (en) * | 2012-08-03 | 2014-02-06 | Charles Rashid | Portable collision warning apparatus |
Also Published As
Publication number | Publication date |
---|---|
EP0441576A3 (en) | 1992-06-03 |
GB2241367A (en) | 1991-08-28 |
GB9102386D0 (en) | 1991-03-20 |
GB9002951D0 (en) | 1990-04-04 |
CA2036016A1 (en) | 1991-08-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0441576A2 (en) | Crash warning system | |
US5289182A (en) | Electronic anti-collison device carried on board a vehicle | |
US6288651B1 (en) | Portable roadway perimeter alarm | |
US5495243A (en) | Emergency vehicle alarm system for vehicles | |
US20090189754A1 (en) | Vehicle impact warning device | |
US20020102961A1 (en) | Emergency vehicle warning system | |
US20050035878A1 (en) | Early warning system for approaching emergency vehicle | |
US20090005988A1 (en) | Vehicle pursuit caution light | |
US6252521B1 (en) | Emergency vehicle alert system | |
US20040155795A1 (en) | Systems and methods for motor vehicle-based emergency/hazard detection | |
JPH05508948A (en) | Warning system for road accident prevention | |
EP0919815A1 (en) | Device and system for providing a warning in response to a motorist driving against the traffic | |
KR20160112667A (en) | The signal device for a traffic accident | |
EP1168276B1 (en) | Traffic control system for signaling on time any obstruction on a road network | |
JP2005200001A (en) | Safe restraint system and method based on navigation | |
EP0510131B1 (en) | Electronic equipement for prevention of collisions between vehicles | |
WO1993016453A1 (en) | Road accident warning system | |
EP0627719A2 (en) | A vehicle-mounted device for identifying and signalling the presence of danger and/or hazards ahead to a driver, and/or for communicating the presence of such to other vehicles | |
KR100835804B1 (en) | Radio system for preventing second traffic accident | |
KR20080070105A (en) | Navigation having a safely driving function and imformation providing method | |
EP4357198A1 (en) | Roadside incident warning device | |
WO1999035628A1 (en) | Transportation information warning system | |
US20230215258A1 (en) | Vehicular incursion alert systems and methods | |
JP2004157773A (en) | Approach warning support system for emergency vehicle | |
EP3485475A1 (en) | Emergency mobile signal generating device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19921202 |
|
18W | Application withdrawn |
Withdrawal date: 19930421 |
|
D18W | Application withdrawn (deleted) | ||
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BOWMAN, NIGEL JAMES |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8580 Free format text: IM HEFT 30/93, SEITE 9059, SP.1: DIE VEROEFFENTLICHUNG IST ZU STREICHEN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19940901 |
|
D18W | Application withdrawn (deleted) |