CN100557627C - A kind of long distance vehicle recognition system - Google Patents
A kind of long distance vehicle recognition system Download PDFInfo
- Publication number
- CN100557627C CN100557627C CNB200710012745XA CN200710012745A CN100557627C CN 100557627 C CN100557627 C CN 100557627C CN B200710012745X A CNB200710012745X A CN B200710012745XA CN 200710012745 A CN200710012745 A CN 200710012745A CN 100557627 C CN100557627 C CN 100557627C
- Authority
- CN
- China
- Prior art keywords
- microwave
- links
- pin
- vehicle carried
- card
- 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.)
- Expired - Fee Related
Links
Images
Abstract
A kind of long distance vehicle recognition system, comprise host computer, microwave receiver, bus controller, car identifier, lever device, vehicle carried device, feel detector, the bar ground sense that falls, radial coil, long wave active device, detector switch; Wherein car identifier respectively with bus controller, microwave receiver, lever device, feel detector and link to each other, bus controller links to each other with host computer, the long wave active device links to each other with radial coil, detector switch respectively, sense detector in ground links to each other with the bar ground sense that falls, and vehicle carried device links to each other with microwave receiver, radial coil by microwave signal, long-wave signal respectively.Advantage of the present invention is to save the energy, and decipherment distance is long, and cost is low, the performance height, and communication identification is reliable.
Description
Technical field
The present invention relates to the vehicle recongnition technique field, particularly a kind of long distance vehicle recognition system.
Background technology
Along with growth in the living standard, the various vehicles of present China have obtained greatly universal, and automobile has been deep into the every aspect of people's life.But the intelligent management for the intelligent management of vehicle in the garden especially porte-cochere gateway also is in the starting stage, it is slow by channel speed to exist vehicle, at every turn by the time need shut-down operation, need during driver operation arm is stretched out the vehicle window identification of swiping the card outward, it is middle to satisfy the custom that exercise on domestic vehicle right side that the identity recognition device installation site must be located at road, thereby increase device in the middle of causing road, influence normal passageway for fire apparatus.Therefore exist efficient low, human factor is many, and management level are low, poor stability, the characteristics of inconvenient operation.
Summary of the invention
Deficiency at prior art exists provides a kind of long distance vehicle recognition system.
Device hardware of the present invention comprise host computer, microwave receiver, bus controller, car identifier, lever device, vehicle carried device, feel detector, the bar ground sense that falls, radial coil, long wave active device, detector switch; Wherein car identifier respectively with bus controller, microwave receiver, lever device, feel detector and link to each other, bus controller links to each other with host computer, the long wave active device links to each other with radial coil, detector switch respectively, sense detector in ground links to each other with the bar ground sense that falls, vehicle carried device links to each other with microwave receiver, radial coil by microwave signal, long-wave signal respectively, the 24V power supply is long wave active device, detector switch power supply, the 12V power supply be microwave receiver, feel detector power supply, the 220V power supply is host computer, the power supply of lever device.
The annexation of described long wave active device is, phase inverter U11A is in parallel with resistance R 41, phase inverter U11B is in parallel with resistance R 42, the output terminal of U11A links to each other with the input end of U11B, the two ends of crystal oscillator Y1 respectively with the input end of U11A, the output terminal of U11B links to each other, the output terminal of U11B links to each other with the input end of reverser U11C, the output terminal of U11C links to each other with the pin 14 of decade counter U12, the output terminal pin 11 of U12 links to each other with the pin 3 of trigger U13A by resistance R 43, the pin 2 of U13A links to each other with pin 5, the output terminal pin 1 of U13A respectively with reverser U11E, U11D, the input end of U11F links to each other, U11E, U11D, the output terminal of U11F all links to each other with the pin 4 of Switching Power Supply control chip IC3, the pin 11 of IC3 links to each other with the base stage of triode Q13 by resistance R 48, the collector of Q13 links to each other with the pin 3 of transformer T2, the pin 14 of IC3 links to each other with the base stage of triode Q12 by resistance R 50, the collector of Q12 links to each other with the pin of T2 9, the pin 15 of IC3 and 1 pin of connector J11, the pin 7 of T2 links to each other, the pin 15 of T2 links to each other with 1 pin of connector J12, the pin 17 of T2 is by capacitor C 50, C51 links to each other with power supply ground, the pin 19 of T2 links to each other with power supply ground, and J12 links to each other with radial coil; The pin 10 of IC3 links to each other with the collector of triode Q11, the emitter of Q11, the pin of IC3 16 all link to each other with VCC, the base stage of Q11 links to each other with the emitter of Q11 by resistance R 45, and capacitor C 48 two ends link to each other with common port, the power supply ground of R45 with the emitter of Q11 respectively; The series circuit that diode d5, normal open switch JJ1 form is in parallel with capacitor C 58 again, and the one common port links to each other with power supply ground, and the other end links to each other with the base stage of Q11 by resistance R 47; The two ends of JJ1 link to each other with the output terminal of detector switch respectively; J11 links to each other with the 24V power supply.
Described vehicle carried device comprises single-chip microcomputer, power module, passive card card reading module, microwave transmitter module, serial communication module, house dog and memory module, wireless receiving module, under-voltage indicating module; Wherein single-chip microcomputer links to each other with microwave transmitter module, serial communication module, passive card card reading module, house dog and memory module, wireless receiving module respectively; Power module links to each other with wireless receiving module, under-voltage indicating module respectively, wireless receiving module single-chip microcomputer, power module, passive card card reading module, microwave transmitter module, serial communication module, house dog and memory module respectively links to each other, and under-voltage indicating module links to each other with wireless receiving module, power module.Wherein telefault L1 one end is connected to the emitter of triode Q3, and the other end is connected to the base stage of Q3 by capacitor C 14, diode D7; The collector of Q3 is connected to the base stage of triode Q4 by resistance R 25, and the emitter of Q4 links to each other with the 2nd pin of USB socket, 1 pin of interface J1 and 2 pin of triode Q7, and J1 links to each other with the 9V battery; The pin 3 of Q7 links to each other with 1 pin of voltage stabilizing chip U3, and the pin 2 of U3 links to each other with the pin 1 of power supply voltage stabilizing chip U8, and the pin 3 of U3 links to each other with the emitter of triode Q5, and the pin 3 of U8 links to each other with the collector of Q5, the pin 2 output 3.3V power supplys of U8; The reverse input end pin two of the voltage breakdown input comparator U7 of diode D11, the pin of input end in the same way 3 of the partial pressure value input U7 of resistance R 32, R33 and adjustable resistance PR1, the output terminal pin one of U7 is by the base stage of resistance R 31, triode Q9, link to each other with 1 pin of socket D15 by the collector output of Q9 and by resistance R 20, D15 links to each other with lamp; Resistance R 32 1 ends link to each other with PR1, and the other end links to each other with the 9V power circuit.External passive card is that the signal of radio-frequency card receives by antenna SX1,1 pin of SX1 links to each other with the pin 8 of wireless receiving module U2 by capacitor C 1,1 pin of SX1 links to each other with the pin 4 of U2 by diode D3, resistance R 3, capacitor C 3,2 pin of SX1 link to each other with the pin one 5 of U2 by diode D4, resistance R 8,2 pin of SX1 link to each other with the collector of triode Q1 by diode D4, resistance R 7,2 pin of SX1 link to each other with the pin 9 of U2 by resistance R 4, and the base stage of Q1 links to each other with 2 pin of U2 by resistance R 9; The pin two of U2 links to each other with the pin 7 of single-chip microcomputer U4; Single-chip microcomputer U4 selects 89C4051 for use, the pin one 8,16,14,17 of U4 links to each other with 5 with the pin 1,3,6 and 2 of storer U1 respectively, the pin 2,3,8 of U4 links to each other with 3 with the pin 1,4 and 2 of serial port communication chip U6 respectively, the pin 6,7 of U6 links to each other with 4,3 pins of USB socket respectively by resistance R 18, R19,9 pin of U4 link to each other with 6 pin of decoding chip U2, the pin 13 of U4 links to each other with the base stage of triode Q6 by resistance R 17, and the pin 15 of U4 links to each other with the base stage of triode Q5 by resistance R 15, diode D10; The collector of Q5 is given the power supply of microwave transmitter module by U8, and the collector of Q6 is given communication module and passive card card reading module and peripheral circuit power supply thereof.The USB socket can be connected with serial ports of computers by the RS-485/232 converter, makes single-chip microcomputer and computer realization communication, so that the passive card card reading module is operated.The pin 5,4,36,6 of microwave transmitter module U21 links to each other with the pin 5,6,2,1 of storage chip U22 respectively.
The management software that embeds in the host computer of the present invention adopts the .NET language as developing instrument based on WindowsXP operating system, and database adopts SQLserver.Software's basic function is to judge whether the microwave identification code of microwave transmitter module emission of vehicle carried device is effective, if effectively, allow to pass through; Otherwise, do not allow to pass through.
The workflow of system is carried out according to the following steps among the present invention:
The two ends of interface JJ1 link to each other with the output terminal of detector switch, and when JJ1 was in off-state at ordinary times, the long wave active device was in dormant state; When detector switch was activated, the JJ1 closure made diode d5, triode Q11 be in conducting state, and IC3, Q11, Q12 start working; The signal input decade counter U12 that crystal oscillator produces, U12 makes frequency division of the frequency, after signal is imported d type flip flop U13A behind the frequency division, form pulse signal, drive through reverser U11E, U11D, U11F shaping, input power supply control chip IC3 by selecting the value of capacitor C 55, resistance R 51, R59, W1, produces the 200KHZ frequency signal; This frequency signal is through the amplification of triode Q13, Q12 and transformer T2, by the radial coil radiation 200KHZ long wave electromagnetic field that links to each other with connector J12.
When step 2, vehicle carried device process radial coil, vehicle carried device is started working; If the single-chip microcomputer of vehicle carried device judges that radio-frequency card is legal, the microwave identification code is sent to microwave receiver with wireless mode;
Specifically carry out according to the following steps:
(1), the wireless receiving module in the vehicle carried device receives the electromagnetic field energy that the long wave active device produces, and makes the electronic switch conducting of vehicle carried device wireless receiving module, and vehicle carried device is started working.
Pushbutton switch S1 in the wireless receiving module is a normal open switch, and when S1 was closed, triode Q4, Q8, Q7 were in conducting state, manually gives single-chip microcomputer, house dog and memory module, serial communication module, the power supply of passive card reading module; Generally speaking, S1 is a normally open, and the electronic switch of being made up of triode Q3, Q4, Q8, Q7 is in cut-off state; When external long-wave signal, inductance L 1 can receive the extraneous signal pressure drop of inducting, and makes triode Q3 conducting, also conducting of Q4, Q7, Q8 after the Q3 conducting, promptly connect electronic switch automatically, give single-chip microcomputer, house dog and memory module, serial communication module, the power supply of passive card reading module.
(2), the single-chip microcomputer of vehicle carried device reads the card number in the radio-frequency card, and judges whether the card internal information effective, as effectively, gives the power supply of microwave transmitter module, otherwise, do not give the power supply of microwave transmitter module.
After the passive card card reading module powers on, the pairing wavelength signals of emission radio-frequency card, radio-frequency card receives and returns self card number information; When antenna receives the card number information of passive RF card, U2 passes to card information by 2 pin 6 pin, 7 pin of single-chip microcomputer, single-chip microcomputer receives card number information by these 2 external interrupt modes, single-chip microcomputer judges whether the card internal information in the passive card card reading module is effective, as effectively, after making output terminal pin 15 output low levels of single-chip microcomputer, triode Q5 is in conducting state, the collector of Q5 is given the power supply of microwave transmitter module, the output terminal pin 13 of single-chip microcomputer is exported high level simultaneously, triode Q6 is in off-state, stops to communication module and the power supply of passive card reading module; As it is invalid to block internal information, and the output terminal pin 15 of single-chip microcomputer keeps that the output high level is constant, and triode Q5 is in cut-off state all the time, does not give the power supply of microwave transmitter module.
The single-chip microcomputer course of work is carried out according to the following steps:
1, powers on program initialization;
2, cut logical triode Q6, give the serial communication module and the power supply of passive card card reading module of vehicle carried device;
3, Card Reader;
4, judge whether it is effective card; If, execution in step 6; If not, execution in step 5;
5, judge whether power-on time arrives; If, execution in step 7; If not, execution in step 3;
6, cut logical triode Q5, give the power supply of microwave transmitter module;
7, cut off triode Q6, give the outage of serial communication module and passive card card reading module;
8, withdraw from.
(3), after the microwave transmitter module powers on, unique microwave identification code that emission has been solidified;
The microwave transmitter module has solidified unique microwave identification code when the owner registers, the microwave transmitter module will be carried out following steps:
1, beginning, program initialization;
2, the emission attitude is set, sends unique microwave identification code of having solidified, and the reception attitude is set;
3, judged whether to accept that ' microwave receiver ' sent replys; If, execution in step 4; If not, execution in step 5;
4, whether judgement replys correct; If, execution in step 6; If not, execution in step 5;
5, judge whether power-on time arrives; If, execution in step 6; If not, return step 2;
6, finish.
When step 4, vehicle were felt by the bar ground that falls, lever will fall automatically; Car is walked back detector switch automatic cutout, and the long wave active device stops to launch long-wave signal, the electronic switch automatic cutout of vehicle carried device wireless receiving module, and vehicle carried device quits work.
When JJ1 was in off-state in the long wave active device, the long wave active device was in dormant state; The magnetic field diminishes that long-wave signal produces, the pressure drop of inducting on the inductance L 1 is 0V, the delay circuit of being made up of capacitor C 15, C16, C17, diode D9, resistance R 28, R29 makes triode Q4, Q7 keep the conducting state of a period of time, after capacitor discharge finishes, triode Q3, Q4, Q7, Q8 in the power circuit are in cut-off state, and system quits work.
Advantage of the present invention is that decipherment distance is far away, recognition speed is fast, can really realize exempting from operation, not stop and pass through the gateway fast, the vehicle driver can not need any operation directly carry out arguing for the sake of arguing after the smart identity identification by, need not furnish any device in the middle of the road, not be subjected to the reliable recognition that influences of various climatic environments.System's installation is easier, the maintenance debugging is more convenient, the vehicle driver feels more convenient, more comfortable, more humane.
Description of drawings
Fig. 1 system architecture diagram of the present invention;
Fig. 2 is the circuit theory diagrams of long wave active device;
The circuit theory diagrams of Fig. 3 vehicle carried device power module and wireless receiving module circuit, under-voltage circuit;
The circuit theory diagrams of single-chip microcomputer, passive card card reading module and house dog storer in Fig. 4 vehicle carried device;
Fig. 5 is the communication module circuit theory diagrams of vehicle carried device;
Microwave transmitter module circuit theory diagrams in Fig. 6 vehicle carried device;
Fig. 7 workflow diagram of the present invention;
Single-chip microcomputer workflow diagram in Fig. 8 vehicle carried device;
Microwave transmitter module workflow diagram in Fig. 9 vehicle carried device;
Wherein among Fig. 1 → expression has lead to link to each other,---＞the expression wireless signal connects.
Embodiment
The invention will be further described below in conjunction with drawings and the specific embodiments;
Device hardware of the present invention comprise host computer, microwave receiver, bus controller, car identifier, lever device, vehicle carried device, feel detector, the bar ground sense that falls, radial coil, long wave active device, detector switch; Wherein car identifier respectively with bus controller, microwave receiver, lever device, feel detector and link to each other, bus controller links to each other with host computer, the long wave active device links to each other with radial coil, detector switch respectively, sense detector in ground links to each other with the bar ground sense that falls, vehicle carried device links to each other with microwave receiver, radial coil by microwave signal, long-wave signal respectively, the 24V power supply is long wave active device, detector switch power supply, the 12V power supply be microwave receiver, feel detector power supply, the 220V power supply is host computer, the power supply of lever device, as shown in Figure 1.
The car identifier that the present invention adopts is the car identifier of VI-NFD for the model that Xi Dong company produces.
The microwave receiver that the present invention adopts is the microwave receiver of NRM for the model that Xi Dong company produces.
The bus controller that the present invention adopts is the bus controller of BC for the model that Xi Dong company produces.
It is the switch of commercially available induction door that the detector switch that the present invention adopts adopts.
The radial coil that the present invention adopts is the coil with the multi cord coiling.
The bar ground sense that falls that the present invention adopts is with the coil of multi cord by the coiling of 1*2 rice.
Ground sense detector adopts commercially available ground sense detector.
The workflow of system is carried out according to the following steps among the present invention, as shown in Figure 7:
Described long wave active device as shown in Figure 2, Switching Power Supply control module IC3 adopts 3525 chips, decade counter U12 adopts 4017 chips, trigger U13 adopts 4013 chips.Phase inverter U11A is in parallel with resistance R 41, phase inverter U11B is in parallel with resistance R 42, the output terminal of U11A links to each other with the input end of U11B, the two ends of crystal oscillator Y1 respectively with the input end of U11A, the output terminal of U11B links to each other, the output terminal of U11B links to each other with the input end of reverser U11C, the output terminal of U11C links to each other with the pin 14 of decade counter U12, the output terminal pin 11 of U12 links to each other with the pin 3 of trigger U13A by resistance R 43, the pin 2 of U13A links to each other with pin 5, the output terminal pin 1 of U13A respectively with reverser U11E, U11D, the input end of U11F links to each other, U11E, U11D, the output terminal of U11F all links to each other with the pin 4 of Switching Power Supply control chip IC3, the pin 11 of IC3 links to each other with the base stage of triode Q13 by resistance R 48, the collector of Q13 links to each other with the pin 3 of transformer T2, the pin 14 of IC3 links to each other with the base stage of triode Q12 by resistance R 50, the collector of Q12 links to each other with the pin of T2 9, the pin 15 of IC3 and 1 pin of connector J11, the pin 7 of T2 links to each other, the pin 15 of T2 links to each other with 1 pin of connector J12, the pin 17 of T2 is by capacitor C 50, C51 links to each other with power supply ground, the pin 19 of T2 links to each other with power supply ground, and J12 links to each other with radial coil; The pin 10 of IC3 links to each other with the collector of triode Q11, the emitter of Q11, the pin of IC3 16 all link to each other with VCC, the base stage of Q11 links to each other with the emitter of Q11 by resistance R 45, and capacitor C 48 two ends link to each other with common port, the power supply ground of R45 with the emitter of Q11 respectively; The series circuit that diode d5, normal open switch JJ1 form is in parallel with capacitor C 58 again, and the one common port links to each other with power supply ground, and the other end links to each other with the base stage of Q11 by resistance R 47; The two ends of JJ1 link to each other with the output terminal of detector switch respectively; J11 links to each other with the 24V power supply.
The two ends of interface JJ1 link to each other with the output terminal of detector switch, and when JJ1 was in off-state at ordinary times, the long wave active device was in dormant state; When detector switch was activated, the JJ1 closure made diode d5, triode Q11 be in conducting state, and IC3, Q11, Q12 start working; The signal input decade counter U12 that crystal oscillator produces, U12 makes frequency division of the frequency, after signal is imported d type flip flop U13A behind the frequency division, form pulse signal, drive through reverser U11E, U11D, U11F shaping, input power supply control chip IC3 by selecting the value of capacitor C 55, resistance R 51, R59, W1, produces the 200KHZ frequency signal; This frequency signal is through the amplification of triode Q13, Q12 and transformer T2, by the radial coil radiation 200KHZ long wave electromagnetic field that links to each other with connector J12.
When step 2, vehicle carried device process radial coil, vehicle carried device is started working; If the single-chip microcomputer of vehicle carried device is judged the radio frequency engaging
Method sends to microwave receiver with the microwave identification code with wireless mode;
Specifically carry out according to the following steps:
(1), wireless receiving module receives the electromagnetic field energy that the long wave active module produces, and the power module of vehicle carried device is started working.
The circuit theory diagrams that vehicle carried device power module and long wave are accepted modular circuit, under-voltage circuit as shown in Figure 3, voltage stabilizing chip U3 selects 78105 chips for use, power supply voltage stabilizing chip U8 selects the AMS1117 chip for use.Wherein telefault L1 one end is connected to the emitter of triode Q3, and the other end is connected to the base stage of Q3 by capacitor C 14, diode D7; The collector of Q3 is connected to the base stage of triode Q4 by resistance R 25, and the emitter of Q4 links to each other with the 2nd pin of USB socket, 1 pin of interface J1 and 2 pin of triode Q7, and J1 links to each other with the 9V battery; The pin 3 of Q7 links to each other with 1 pin of voltage stabilizing chip U3, and the pin 2 of U3 links to each other with the pin 1 of power supply voltage stabilizing chip U8, and the pin 3 of U3 links to each other with the emitter of triode Q5, and the pin 3 of U8 links to each other with the collector of Q5, the pin 2 output 3.3V power supplys of U8; The reverse input end pin two of the voltage breakdown input comparator U7 of diode D11, the pin of input end in the same way 3 of the partial pressure value input U7 of resistance R 32, R33 and adjustable resistance PR1, the output terminal pin one of U7 is by the base stage of resistance R 31, triode Q9, link to each other with 1 pin of socket D15 by the collector output of Q9 and by resistance R 20, D15 links to each other with the LED lamp; Resistance R 32 1 ends link to each other with PR1, and the other end links to each other with the 9V power circuit.
Pushbutton switch S1 in the wireless receiving module is a normal open switch, and when S1 was closed, triode Q4, Q8, Q7 were in conducting state, gives single-chip microcomputer, house dog and memory module, serial communication module, the power supply of passive card reading module; Generally speaking, S1 is a normally open, and the electronic switch of being made up of triode Q3, Q4, Q8, Q7 is in cut-off state; When external long-wave signal, inductance L 1 can receive the extraneous signal pressure drop of inducting, and makes triode Q3 conducting, also conducting of Q4, Q7, Q8 after the Q3 conducting, promptly connect electronic switch, give single-chip microcomputer, house dog and memory module, serial communication module, the power supply of passive card reading module.
(2), the single-chip microcomputer in the vehicle carried device reads the card number in the radio-frequency card, and judges whether the card internal information effective, as effectively, gives the power supply of microwave transmitter module, otherwise, do not give the power supply of microwave transmitter module.
Single-chip microcomputer in the vehicle carried device, house dog and memory module and passive card card reading module as shown in Figure 6, single-chip microcomputer is selected the 89C4051 chip for use, the passive card card reading module adopts radio-frequency card chip U2270B.The circuit theory diagrams of the serial communication module of vehicle carried device as shown in Figure 5.The serial communication module is selected the MAX1487E chip for use.External passive card is that the signal of radio-frequency card receives by antenna SX1,1 pin of SX1 links to each other with the pin 8 of wireless receiving module U2 by capacitor C 1,1 pin of SX1 links to each other with the pin 4 of U2 by diode D3, resistance R 3, capacitor C 3,2 pin of SX1 link to each other with the pin one 5 of U2 by diode D4, resistance R 8,2 pin of SX1 link to each other with the collector of triode Q1 by diode D4, resistance R 7,2 pin of SX1 link to each other with the pin 9 of U2 by resistance R 4, and the base stage of Q1 links to each other with 2 pin of U2 by resistance R 9; The pin two of U2 links to each other with the pin 7 of single-chip microcomputer U4; Single-chip microcomputer U4 selects 89C4051 for use, the pin one 8,16,14,17 of U4 links to each other with 5 with the pin 1,3,6 and 2 of storer U1 respectively, the pin 2,3,8 of U4 links to each other with 3 with the pin 1,4 and 2 of serial port communication chip U6 respectively, the pin 6,7 of U6 links to each other with 4,3 pins of USB socket respectively by resistance R 18, R19,9 pin of U4 link to each other with 6 pin of decoding chip U2, the pin 13 of U4 links to each other with the base stage of triode Q6 by resistance R 17, and the pin 15 of U4 links to each other with the base stage of triode Q5 by resistance R 15, diode D10; The collector of Q5 is given the power supply of microwave transmitter module by U8, and the collector of Q6 is given communication module and passive card card reading module and peripheral circuit power supply thereof.The USB socket can be connected with serial ports of computers by the RS-485/232 converter, makes single-chip microcomputer and computer realization communication, so that the passive card card reading module is operated.
After the passive card card reading module powers on, emission 125KHz signal, radio-frequency card receives and returns self card number information; When antenna receives the card number information of passive RF card, U2 passes to card information by 2 pin 6 pin, 7 pin of single-chip microcomputer, single-chip microcomputer receives card number information by these 2 external interrupt modes, single-chip microcomputer judges whether the card internal information in the passive card card reading module is effective, as effectively, after making output terminal pin 15 output low levels of single-chip microcomputer, triode Q5 is in conducting state, the collector of Q5 is given the power supply of microwave transmitter module, the output terminal pin 13 of single-chip microcomputer is exported high level simultaneously, triode Q6 is in off-state, stops to communication module and the power supply of passive card reading module; As it is invalid to block internal information, and the output terminal pin 15 of single-chip microcomputer keeps that the output high level is constant, and triode Q5 is in cut-off state all the time, does not give the power supply of microwave transmitter module.
Single-chip microcomputer is selected the 89C4051 chip for use, uses the C language compilation; The course of work is carried out according to the following steps, as shown in Figure 8:
1, powers on program initialization;
2, cut logical triode Q6, give the serial communication module and the power supply of passive card card reading module of vehicle carried device;
3, Card Reader;
4, judge whether it is effective card; If, execution in step 6; If not, execution in step 5;
5, judge whether power-on time arrives; If, execution in step 7; If not, execution in step 3;
6, cut logical triode Q5, give the power supply of microwave transmitter module;
7, cut off triode Q6, give the outage of serial communication module and passive card card reading module;
8, withdraw from.
(3), after the microwave transmitter module powers on, unique microwave identification code that emission has been solidified;
In the vehicle carried device circuit theory diagrams of microwave transmitter module as shown in Figure 6, microwave transmitter module U21 selects the nRF24E1 chip for use.The pin 5,4,36,6 of microwave transmitter module U21 links to each other with the pin 5,6,2,1 of storage chip U22 respectively.
The microwave transmitter module has solidified unique microwave identification code when the owner registers, the microwave transmitter module will be carried out following steps, as shown in Figure 9:
1, beginning, program initialization;
2, the emission attitude is set, sends unique microwave identification code of having solidified, and the reception attitude is set;
3, judged whether to accept that ' microwave receiver ' sent replys; If, execution in step 4; If not, execution in step 5;
4, whether judgement replys correct; If, execution in step 6; If not, execution in step 5;
5, judge whether power-on time arrives; If, execution in step 6; If not, return step 2;
6, finish.
When step 4, vehicle were felt by the bar ground that falls, the lever device will fall automatically; Detector switch disconnects, and the long wave active device stops to launch long-wave signal, and the vehicle carried device power supply quits work.
When JJ1 was in off-state in the long wave active device, the long wave active device was in dormant state; The magnetic field diminishes that long-wave signal produces, the pressure drop of inducting on the inductance L 1 is 0V, the delay circuit of being made up of capacitor C 15, C16, C17, diode D9, resistance R 28, R29 makes triode Q4, Q7 keep the conducting state of a period of time, after capacitor discharge finishes, triode Q3, Q4, Q7, Q8 in the power circuit are in cut-off state, and system quits work.
Claims (4)
1, a kind of long distance vehicle recognition system, the hardware unit of this system comprise host computer, microwave receiver, bus controller, car identifier, lever device, vehicle carried device, feel detector, the bar ground sense that falls, radial coil, long wave active device, detector switch; Wherein car identifier respectively with bus controller, microwave receiver, lever device, feel detector and link to each other, bus controller links to each other with host computer, the long wave active device links to each other with radial coil, detector switch respectively, sense detector in ground links to each other with the bar ground sense that falls, and vehicle carried device links to each other with microwave receiver, radial coil by microwave signal, long-wave signal respectively; The recognition methods of this system may further comprise the steps:
Step 1, will be when the gateway as vehicle, detector switch is activated, the long wave active device is started working, and generates an electromagnetic field near radial coil;
When step 2, vehicle carried device process radial coil, vehicle carried device is started working; If the single-chip microcomputer of vehicle carried device judges that radio-frequency card is legal, the microwave identification code is sent to microwave receiver with wireless mode;
Step 3, microwave receiver receive the next microwave identification code of microwave transmitter module emission of vehicle carried device, and the microwave identification code passed to car identifier, car identifier is passed to host computer with the microwave identification code again, host computer judges whether identification code is effective, if effectively, car identifier will be given lever device signal, and it is argued for the sake of arguing; If not, can not argue for the sake of arguing;
When step 4, vehicle were felt by the bar ground that falls, the lever device will fall automatically; Detector switch disconnects, and the long wave active device stops to launch long-wave signal, and the vehicle carried device power supply quits work.
2, long distance vehicle recognition system according to claim 1, wherein step 2 may further comprise the steps:
(1), the wireless receiving module in the vehicle carried device receives the electromagnetic field energy that the long wave active device produces, and makes the electronic switch conducting of vehicle carried device wireless receiving module, and vehicle carried device is started working;
(2), the single-chip microcomputer of vehicle carried device reads the card number in the radio-frequency card, and judges whether the card internal information effective, as effectively, gives the power supply of microwave transmitter module, otherwise, do not give the power supply of microwave transmitter module;
(3), after the microwave transmitter module powers on, unique microwave identification code that emission has been solidified.
3, long distance vehicle recognition system according to claim 2, wherein the single-chip microcomputer of the vehicle carried device in the step (two) is carried out according to the following steps:
1, powers on program initialization;
2, cut logical triode Q6, give the serial communication module and the power supply of passive card card reading module of vehicle carried device;
3, Card Reader;
4, judge whether it is effective card; If, execution in step 6; If not, execution in step 5;
5, judge whether power-on time arrives; If, execution in step 7; If not, execution in step 3;
6, cut logical triode Q5, give the power supply of microwave transmitter module;
7, cut off triode Q6, give the outage of serial communication module and passive card card reading module;
8, withdraw from.
4, long distance vehicle recognition system according to claim 2, wherein the microwave transmitter module in the step (three) is carried out according to the following steps:
1, beginning, program initialization;
2, the emission attitude is set, sends the unique microwave identification code that has cured, and the reception attitude is set;
3, judged whether to receive replying that ' microwave receiver ' sent; If, execution in step 4; If not, execution in step 5;
4, whether judgement replys correct; If, execution in step 6; If not, execution in step 5;
5, judge whether power-on time arrives; If, execution in step 6; If not, return step 2;
6, finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710012745XA CN100557627C (en) | 2007-09-06 | 2007-09-06 | A kind of long distance vehicle recognition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710012745XA CN100557627C (en) | 2007-09-06 | 2007-09-06 | A kind of long distance vehicle recognition system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101118602A CN101118602A (en) | 2008-02-06 |
| CN100557627C true CN100557627C (en) | 2009-11-04 |
Family
ID=39054708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710012745XA Expired - Fee Related CN100557627C (en) | 2007-09-06 | 2007-09-06 | A kind of long distance vehicle recognition system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100557627C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102081746B (en) * | 2010-03-11 | 2012-11-28 | 上海海事大学 | Container truck information identification system based on collaboration of multiple sensors |
| CN103698794A (en) * | 2012-09-27 | 2014-04-02 | 北京中科核安科技有限公司 | Intelligent vehicle radioactivity monitoring system |
| CN103400420B (en) * | 2013-08-13 | 2017-02-15 | 广州中国科学院软件应用技术研究所 | Parking lot control system |
-
2007
- 2007-09-06 CN CNB200710012745XA patent/CN100557627C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101118602A (en) | 2008-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100557627C (en) | A kind of long distance vehicle recognition system | |
| CN208673514U (en) | A kind of NB-IOT water meter | |
| CN104596041A (en) | Intelligent energy-saving operation control device of air conditioner and control method thereof | |
| CN201765679U (en) | Wireless radio-frequency remote-control device | |
| CN105989379A (en) | Wireless radio frequency identification reader-writer of campus verification system | |
| CN106710197A (en) | Remote control method and remote control device | |
| CN100585625C (en) | A kind of vehicle carried device that is used for long distance vehicle recognition system | |
| CN201166867Y (en) | Apparatus for measuring road | |
| CN107993357A (en) | A kind of intelligent gas meter system that data are read easy to data center | |
| CN207502002U (en) | A kind of intelligent gas meter of anti-built-in power sleep | |
| CN104676835A (en) | Energy-saving operation control device for air conditioner and control method of energy-saving operation control device | |
| CN209417811U (en) | A kind of RFID Storage Cabinets intelligence control system | |
| CN114352132A (en) | Electromagnetic lock control circuit and control method | |
| CN204204009U (en) | A kind of radio frequency card door lock control circuit | |
| CN103310607B (en) | A kind of radio frequency teleautomatics based on satnav and remote control thereof | |
| CN202771535U (en) | Automatic bus card swiping data collecting system | |
| CN102663851B (en) | System and method for automatically acquiring card-reading data of bus | |
| CN203466794U (en) | Wireless room plug-in card electricity taking device | |
| CN208293475U (en) | A kind of stereo garage with the short distance anticollision communication module based on bluetooth equipment | |
| CN208517848U (en) | Parking lock system based on contactless charging technique | |
| CN209277037U (en) | Intelligent space lock | |
| CN108334920A (en) | A kind of composite intelligent card and its power supply management method for vehicle toll | |
| CN202049350U (en) | Vehicle-mounted unit of 5.8GHz ETC system | |
| CN201859324U (en) | Remote wireless control system for air conditioner | |
| CN209980366U (en) | Intelligent prepayment management system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20190906 |