CN1103298C - Antiforge electronic license plate of vehicle and its discrimination system and method - Google Patents
Antiforge electronic license plate of vehicle and its discrimination system and method Download PDFInfo
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- CN1103298C CN1103298C CN99116262A CN99116262A CN1103298C CN 1103298 C CN1103298 C CN 1103298C CN 99116262 A CN99116262 A CN 99116262A CN 99116262 A CN99116262 A CN 99116262A CN 1103298 C CN1103298 C CN 1103298C
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Abstract
The present invention discloses an anti-falsification electronic license plate for a vehicle, and a detection system and a detection method of the anti-falsification electronic license plate. The electronic license plate comprises a CPU, an ROM, an RAM, a microwave transmitter, a microwave receiver, an awaking timer and an identifier identifying region, and the essential information of the vehicle is written in the electronic license plate. The detection system of the anti-falsification electronic license plate comprises a detection unit and an auxiliary unit for quick search, and is used for carrying out non-contact reading and writing operation for license plates through microwaves. The detection method of the anti-falsification electronic license plate is characterized in that the detection system (a fixed or a movable detection mode) is used for reading out the data which is stored by electronic license plates on vehicles, and then, the data is used for identifying the truth of the vehicle.
Description
The present invention relates to a kind of vehicle Antiforge electronic Sign Board.
The stolen problem of self-propelled vehicle is social now a great problem.Current management process to self-propelled vehicle is to utilize license plate number to manage now.But license plate number is very easily forged, and this gives and steal car, plunders, disposes of stolen goods, black market bargain has brought opportunity.Obviously, if can give one in each car unique, that can not forge and numbering that be easy to discern is as its " proof of identification ", above-mentioned unlawful activities are certain to be suppressed greatly.But existing various numbering comprises that vehicle frame number, Motor Number etc. all can't satisfy this requirement, and is not easy to identify because they have, the easy forgery that has.
The patent No. is 96248385.0, name is called in the Chinese patent of " wireless telemetering electronic license for motor vehicle ", a kind of wireless telemetering electronic license for motor vehicle is disclosed, comprise examination machine and responser, wherein the responser part is made up of data processing circuit, transmitter circuitry, receiver circuit, electronic switching circuit, stored record circuit.This patent can realize the vehicle in travelling is checked, and has fast, characteristics accurately and efficiently.But this patent can not guarantee the uniqueness and the unforgeable of licence plate, thereby can't avoid false-trademark, cover board phenomenon, the false proof purpose of out of reach.
Purpose of the present invention is exactly in order to overcome the above problems, and a kind of vehicle anti-counterfeiting mark board is provided, and makes inspection convenient, reliable, avoids false-trademark, cover board phenomenon, reaches false proof purpose.
The present invention realizes that the scheme of above-mentioned purpose is: a kind of vehicle Antiforge electronic Sign Board includes treater CPU, read only memory ROM, dynamic memory RAM, microwave transmitter, microwave receiver, wakeup time device, identifier cog region; Microwave transmitter, receiver are used for linking with external device, write the data in data or the read-out mark board in Sign Board; It is characterized in that: the unique number of dispatching from the factory that a chip is arranged in the identifier cog region of each Sign Board; Store following various code among the described dynamic memory RAM: " vehicle international lifelong coding ", car owner's identification card number, license plate number, Motor Number, vehicle frame number, vehicle, cognizance code; Store the COS of management of software ic system in the described read only memory ROM, i.e. watchdog routine is managed reading or can not reading and writing maybe can not writing, change maybe and can not change of information among the above-mentioned dynamic memory RAM; It also comprises the wakeup time device, is used to control " dormancy " and mode of operation conversion of Sign Board; Microwave transmitter, the used frequency of receiver are one of following three frequency ranges: 900～928MHZ, 2.45GHZ, 5.8GHZ.
Above-mentioned vehicle Antiforge electronic Sign Board can utilize following checking system to detect: this checking system comprises the read-write detecting unit, retrieves auxiliary unit fast; Wherein read and write detecting unit and be used for sending data and receiving acknowledge signal from the anti-counterfeiting mark board to the Antiforge electronic Sign Board, it comprises digital circuit blocks, radio-frequency (RF) circuit module and antenna; Digital circuit blocks comprises control part and data demodulates part again, the radio-frequency (RF) circuit module modulate emission is to the data of anti-counterfeiting mark board, provide a continuous carrier to be used for the back scattering wave of anti-counterfeiting mark board, receive to conciliate and transfer from the back scattering wave signal of anti-counterfeiting mark board; The retrieval auxiliary unit mainly is made up of single-chip microprocessor MCU fast, and it links to each other with the read-write detecting unit, and the data that the read-write detecting unit reads in are carried out analyzing and processing.
Utilize above-mentioned vehicle Antiforge electronic Sign Board to carry out the false proof following steps that adopt of vehicle: 1), to comprise by traffic control department in vehicle Antiforge electronic Sign Board, writing following several information: the international lifelong coding of vehicle, car owner's identification card number, license plate number, Motor Number, vehicle frame number, vehicle, cognizance code with Sign Board initialization and individualized; 2) initialization and personalized Sign Board are issued the car owner together with car plate, as vehicle register one's residence the authentication electronic ID card; 3) Sign Board is installed on the vehicle.
Owing to adopted above scheme, critical physical data of power actuated vehicle and feature are write an intelligentized electronic medium by computer technology, be referred to as " vehicle Antiforge electronic Sign Board ".By reasonable arrangement to content in the identifier cog region, guarantee its uniqueness, and management of software ic system wherein, the reading or can not reading and writing maybe can not write, change maybe and can not change of control chip, the content that unauthorized person can not be read arbitrarily in the board is forged, can not distort content wherein and upset the management order of electronic license plate, thereby guarantee the unforgeable and the integrity of car plate.Because native system adopts microwave technology, the law enfrocement official also can be more remote under the situation of not stopping, with the shortest time and easy operating mode, promptly in time offer an explanation legitimacy or the illegal property of being looked into vehicle to detect as the true and false of most critical information such as " the international lifelong codings of vehicle ", be convenient to the traffic control personnel and take measures areput, on this point, the anti-counterfeiting mark board provides the law enfrocement official site to detect and with comfort feature, manoevreability and the reliability of machine testing again.
Fig. 1 is a vehicle Antiforge electronic Sign Board function block diagram of the present invention.
Fig. 2 is an electronic mark board checking system read-write detecting unit function block diagram of the present invention.
Fig. 3 is that Sign Board of the present invention forms diagram of circuit.
Fig. 4 is fixed type testing process figure.
Fig. 5 is an artificial processing flow chart after vehicle is stopped.
Fig. 6 is motor driven testing process figure at random.
Also the present invention is described in further detail in conjunction with the accompanying drawings below by specific embodiment.
Embodiment one: for complete description, present embodiment has comprised that simultaneously the checking system of a kind of vehicle Antiforge electronic Sign Board, this Sign Board reaches the vehicle false-proof detection method based on this Sign Board and checking system.Wherein:
Described vehicle Antiforge electronic Sign Board includes treater CPU, read only memory ROM, dynamic memory RAM, microwave transmitter, microwave receiver, wakeup time device, identifier cog region; Each Sign Board has the unique number of dispatching from the factory of a chip; Store following various code among the described dynamic memory RAM: " vehicle international lifelong coding ", car owner's identification card number, license plate number, Motor Number, vehicle frame number, vehicle, cognizance code; Store the COS of management of software ic system (watchdog routine) in the described read only memory ROM, manage reading or can not reading and writing maybe can not writing, change maybe and can not change of information among the above-mentioned dynamic memory RAM; Microwave transmitter, receiver are used for linking with external device, write data in data or the read-out mark board to Sign Board; The wakeup time device is used to control " dormancy " and mode of operation conversion of Sign Board.Also be provided with data self-destruction terminal in the Sign Board, when meeting destruction or being taken away by force, the storage data disappear automatically.
Described vehicle Antiforge electronic Sign Board checking system comprises the read-write detecting unit, retrieves auxiliary unit fast; Wherein read and write detecting unit and be used for sending data and receiving acknowledge signal from the anti-counterfeiting mark board to the Antiforge electronic Sign Board, it comprises digital circuit blocks, radio-frequency (RF) circuit module and antenna; Digital circuit blocks comprises control part and data demodulates part again, the radio-frequency (RF) circuit module modulate emission is to the data of anti-counterfeiting mark board, provide a continuous carrier to be used for the back scattering wave of anti-counterfeiting mark board, receive to conciliate and transfer from the back scattering wave signal of anti-counterfeiting mark board; The retrieval auxiliary unit mainly is made up of single-chip microprocessor MCU fast, and it links to each other with the read-write detecting unit, and the data that the read-write detecting unit reads in are carried out analyzing and processing.Also include system microcomputer, it is by quick retrieval auxiliary unit with being connected of detecting unit of read-write, it and fast adopt the high speed dual port RAM to transmit data between the single-chip microprocessor MCU in the retrieval auxiliary unit with parallel mode, and can gather, store, compare, analyze, handle in the vehicle label for information about; It also by network connect Traffic Administration Bureau of Ministry of Public Security each province, city's vehicle management local area network on, upload, deposit, download various vehicle specific informations; Also there is doubtful point vehicle data storehouse in the microcomputer; Can be by comparing the instruction that testing result is sent the vehicle of stopping or let pass.As required, this checking system can be divided into two kinds, and a kind of is fixed type, is arranged at road junction, toll station etc. and locates, and is provided with digital vehicle detector, automatic banister and electronic eyes in the system; Digital vehicle detector adopts the digital-to-analogue transformation technology, and by electromagnetic induction principle, induction detects and the counting traffick; Automatically banister is used to tackle the doubtful point vehicle; Electronic eyes is used for vehicle is videotaped.Another kind is portable, and described microcomputer is a laptop computer, surfs the Net by radio modem.
It is false proof that described vehicle method for anti-counterfeit utilizes above-mentioned vehicle Antiforge electronic Sign Board and vehicle Antiforge electronic Sign Board checking system to carry out vehicle, it is characterized in that may further comprise the steps: 1), comprise by traffic control department in vehicle Antiforge electronic Sign Board, writing following several information: the international lifelong coding of vehicle, car owner's identification card number, license plate number, Motor Number, vehicle frame number, vehicle, cognizance code with Sign Board initialization and individualized; 2) initialization and personalized Sign Board are issued the car owner together with car plate, as vehicle register one's residence the authentication electronic ID card; 3) Sign Board is installed on the vehicle.When Sign Board being carried out initialization and individualizing, also at least three kinds with following several information carry out the test key encryption, and the information after will encrypting then writes in the Sign Board in the lump: " the international lifelong coding of vehicle ", car owner's identification card number, license plate number all need be carried out test key and be handled; Motor Number, vehicle frame number, vehicle, cognizance code need not carry out test key and handle.According to fixed type and portable different, its usage is also different.Locate to be provided with fixed type vehicle Antiforge electronic Sign Board checking system at main thoroughfare, check post, bridge critical point etc., under the situation of not stopping, vehicular traffic is checked or casual inspection one by one; Fast the retrieval auxiliary unit utilizes microwave signal to read data in the electronic mark board on the tested vehicle immediately by detecting unit, is sent to system microcomputer, and system microcomputer is handled data, and decision is let pass or the vehicle of stopping.On the inspection car, mobile vehicle Antiforge electronic Sign Board checking system is set, vehicular traffic is carried out casual inspection, fast the retrieval auxiliary unit utilizes microwave signal to read data in the electronic mark board on the tested vehicle immediately by detecting unit, be sent to system microcomputer, system microcomputer is handled data, and decision is let pass or the vehicle of stopping.
Each several part to present embodiment is described in further detail below.
One, the formation of present embodiment vehicle Antiforge electronic Sign Board, checking system
Native system is made of following several parts:
(1), as the microwave computer chip of vehicle anti-counterfeiting mark board
For reaching remote (15 meters) the do not stop legitimacy that detects vehicle or technical requirements of illegal property, adopted the microwave identification hardware frame of 2.45GHZ carrier frequency.Main technical details is: * is with eight bit CPUs; *, 4K byte ROM is arranged; *, inner 256 byte RAM are arranged; *, user 256 byte RAM are arranged; * power: 300mw; * detect distance: 15 meters; * the detection speed per hour of can not stopping is 100 kilometers a vehicular traffic; * the read/write detecting unit is to the data transmission rate of the forward chaining of Sign Board chip: 189Kbps; * the Sign Board chip is to the data transmission rate of the backward chaining of read/write detecting unit: 92Kbps; * environment for use temperature :-40 ℃～+ 85 ℃.Its functional block diagram is seen Fig. 1.
(2), as sending data-signal and receive read/write detecting unit to the anti-counterfeiting mark board from anti-counterfeiting mark board acknowledge signal at remote (15 meters).
Detecting unit partly is made up of digital circuit blocks and radio-frequency (RF) circuit module two, and digital circuit blocks partly is made up of control part and data demodulates again.Radio-frequency (RF) circuit module is finished the data of modulate emission to anti-counterfeiting mark board chip, and finishing provides a continuous carrier to be used for the back scattering wave of anti-counterfeiting mark board, finishes to receive to conciliate and transfers from the back scattering wave signal of anti-counterfeiting mark board chip.Its main technical details is:
Forward chaining * master clock frequency: 19.075MHZ; * data rate: 307.66bps (effectively 189.33Kbps); * frequency: 2442MHZ; * modulation: filtering 00K; * emissive power: maximum 500mw (+27 decibel referred to one milliwatt); * direct sequential spread spectrum: cut apart * for every 31 and cut apart speed: 9.537,000,000 cycle per seconds; * code length: 31; * error recovery/detection: 16 bit trials and, 5 bit parity checks (bit correction, two detections); * demodulation techniques: diode detector.
Backward chaining * data rate: 149bps (effectively 91.75Kbps); * frequency range: a low section 2418MHZ (± 15MHZ), stage casing 2442MHZ (± 15MHZ), high section 2465MHZ (± 15MHZ) * modulation: back scattering wave differential phase keying (DPSK) subcarrier * subcarrier frequency: 596KHZ* frequency agility: every section 75 numbers, 400KHZ* jump speed at interval: * message length of each information: conversion is up to 104 byte * receiving sensitivities: minimum-80 decibel referred to one milliwatt * subcarriers are reconciled: with DSP differential phase keying (DPSK) * error recovery: 16 bit checks and, 5 bit parity checks (bit correction, two detections) * is staggered: each data word is to interlocking.Its functional block diagram is seen Fig. 2.
(3), two emitting antennas and double reception antenna
Two emitting antennas and two receiving wires; Emitting antenna is the compensation antenna of 6db, and receiving wire is 12db, because gain is different, the size of receiving wire only is 1/3 of an emitting antenna.
(4), retrieve auxiliary unit fast
* single chip circuit is formed
Be connected between read/write detecting unit and the system host, the main monitoring Card Reader of being responsible for, the burden of mitigation system microcomputer improves the speed that system microcomputer is searched related data, and adopting at a high speed between the MCU homologous ray of auxiliary unit, " dual port RAM " transmits data with parallel mode.Auxiliary unit has following function:
When having vehicle to pass through, " digital vehicle detector " by the signalisation auxiliary unit, learns passing car number with vehicle, and the MCU of unit reads and sets the Sign Board data on the traffick on the track.
The MCU of unit reads to illustrate that this vehicle does not have Sign Board or Sign Board is bad when setting the data of traffick Sign Board on the track, reporting system microcomputer this car inquiry of ordering to stop in time.
The MCU of auxiliary unit at first reads also interior " the Sign Board sequence index numbering " of checking mark board, and information in time is sent to system microcomputer; Unit MCU then continues to read data such as " the international lifelong codings of vehicle ", and " Sign Board index number " can utilize the numeral of existing some index number of traffic control department, and as country, province, city's code, the sequence number when adding distribution Sign Board chip is formed.
System microcomputer is promptly searched relevant information by call number, and is waited for unit MCU contact and check data after receiving " Sign Board sequence index number " from unit MCU in the relevant data storehouse.
System microcomputer is compared " mistake " information that unit MCU sends here in doubtful point vehicle data storehouse, rob, lose, smuggle vehicle thereby find the robber who whether has reported to the police.
(5), Sign Board chip initiation and personalized card sending system
Card sending system is made up of card sender and card sending system software, is started shooting by the authorization card mandate during hair fastener.Initialization and personalization system software comprise " the Sign Board sequence index numbering " that generates according to card number, distribution user ID board and management software; Data query (the user ID board is browsed, control card is browsed, check inquiry) software; Under adorn data software; The doubtful point vehicle data is handled (typing of doubtful point vehicle data, generation data file, data query) software; Systemic-function (configuration-system parameter, nullify, log off) software.
(6), system microcomputer main frame and microcomputer
* connect Traffic Administration Bureau of Ministry of Public Security each province, city's vehicle management local area network on, upload, deposit, download various vehicle specific informations.
* it is interior for information about to gather, store, compare, analyze, handle the vehicle label.
* deposit " doubtful point vehicle data storehouse "
* by testing result, order cuts looks into mechanism's legal vehicle of letting pass, or order cuts and looks into mechanism's illegal vehicle of stopping.
* system microcomputer is divided into each one in main frame and secondary machine, and main frame is used for daily detection vehicular traffic; Secondary machine is looked into the various information datas of vehicle with daughter nucleus to stopping, and secondary machine connects Traffic Administration Bureau of Ministry of Public Security wide area network, and calls other province, vehicle administration office, city vehicle standard data of database in order to inquiry by wide area network server.(7), digital vehicle detector and banister automatically
Digital Vehicle analyzer comprises signal processor and two parts of magnetic test coil.
Adopted advanced digital-to-analogue transformation technology,, detected and the counting traffick to the 180KHZ induction range at 30KHZ by electromagnetic induction principle.Detector technical parameter: * counting error, 1 * 10
-6* alternating current-direct current: 12～20V ,+50HZ; * induction range: 30KHZ～180KHZ; * output signal: level signal during induction, pulse signal when leaving.* RS-485 interface; * magnetic test coil adopts the single core copper of 1mm core BVC plastic cord, and length 100mm evenly is wound in the wire casing, and draw with the two-wire coiling in the exit.All irritate in the groove with the epoxy resin envelope.Technical parameter: lead: 1mm * 100m; Coil resistance is less than 4 Ω; Area coil: 2.5m * 1.5m; Coil ground insulation resistance: 10M Ω: automatic banister: full rotation type, drive mechanism is simple, reductor selection standard cycloidal planetary gear speed reducer, volume is little, transmitting ratio is big, efficient is high, can be used for handle during power failure and rotates restrictor bar.In establish controller, open according to what system microcomputer was sent
Signal opens operation, and starting rapidly only needs 2 seconds.Technical parameter: power supply: 220V～50HZ is single-phase; Host power consumption: 180W n=1450r, P, m; Power: maximum 130W; Interface mode: input switch level: direct current 10～15V, 10MA; The way of output has two kinds on silicon control and relay; Restrictor bar rises (landing) time t=2 second; Noise:＜70 decibels: weight: 60KG.
Two, principle of work
(1), the formation of Sign Board
Its diagram of circuit such as Fig. 3.Write in the Sign Board chip by traffic administration institute, traffic control department province ,city and area application identities board card sending system:
" the Sign Board sequence index numbering " of 4 bytes (tentative is 4 bytes) (being placed in back 4 byte User Recognition districts of 10 byte-identifier symbol cog regions)
Read/write detecting unit and the quick disposable identifier cog region that reads 10 bytes of retrieval auxiliary unit, the chip of the reading 6 bytes earlier unique number of dispatching from the factory is read the Sign Board sequence index numbering of 4 bytes again.
Write " vehicle international lifelong coding " information of the most critical of Sign Board in the 256 byte RAM districts in chip, write information such as car owner's identification card number, license plate number, Motor Number, vehicle frame number, vehicle, cognizance code again.
" the international lifelong coding of vehicle ", " car owner's identification card number ", " license plate number " three main informational needs carry out the test key encryption, make it to accomplish to forge.
The reading of the various information of depositing in 8 MCU in the chip and the ROM district of watchdog routine (COS) strict control maybe can not be read, and writes maybe and can not write, and changes maybe and can not change, and guaranteed the safety of reading change and storing of Sign Board information.
The still remaining 122 bytes of memory spaces, user RAM district of 256 bytes are required as develop in the future in the chip, as purposes such as vehicle accident record and stored value cards.
The Sign Board that initialization reaches after individualizing is issued the car owner together with car plate, and registering one's residence as vehicle authenticates the vehicle electric cermet of identification that can not forge.
(2), the installation of Sign Board
(about 86 * 54mm) should install with vehicle Sign Board together, and board is not from car, and car is not from board.
Sign Board can be installed in place, upper right side in the headstock Windshield.
Sign Board application organic solvent welds Sign Board and is one with Windshield.
The Sign Board surface is printed on relevant pattern and correlating markings by traffic control department regulation.
Integrated for guaranteeing the Sign Board vehicle, after the formal startup of system engineering, can require chip manufacturing producer that data self-destruction end is set in chip, the memory data when promptly meeting the destruction Sign Board or taking Sign Board away by force in the sheet can disappear automatically.
(3), traffic control department vehicle administration office Sign Board card sending system, Sign Board read/write detecting unit be equipped with and retrieve auxiliary unit fast so as in time to handle deal out the cards, rabbit-hunting, bad board handle, lose professional items such as board is put on record, vehicle year check board.
(4), the site of vehicle is detected and is had dual mode to carry out with machine testing.A kind of is that fixed type detects: promptly locate to set the fixed type check point at main thoroughfare, check post, bridge critical point etc.; The fixed type check point disposes system microcomputer (major-minor), read/write detecting unit, auxiliary, the digital vehicle detector in unit of retrieval, equipment such as banister, electronic eyes automatically fast.Another kind is a manoevreability detection mode at random, promptly on the inspection car configuration laptop computer formula system microcomputer, read/write device detecting unit, retrieve auxiliary unit, radio modem, power inverter etc. fast.
(5), when detecting Sign Board information, can be in distance antenna 15M scope, detect speed per hour in an angle of 90 degrees and be 100 kilometers vehicular traffic, can detect the Sign Board information of 20 cars simultaneously.
(6), the fixed type detection mode detects: its diagram of circuit is seen Fig. 4, and the handler after wherein stopping is seen Fig. 5.
The signals of vehicles that digital vehicle detector in time will be crossed certain lane detection section is sent to system microcomputer, so that determine the quantity of section vehicular traffic at a time, prevents from not have the vehicle omission of electronic mark board.
The retrieval auxiliary unit reads 10 byte-identifier symbol ID districts in the vehicle label at once fast, reads the Sign Board chip factory unique number of 5 bytes earlier, reads the vehicle index number of 4 bytes again, and information is sent to system microcomputer.
" auxiliary unit " at first compares original encryption test key of " the international lifelong coding of vehicle " with new checking test key.Be about to " the international lifelong coding of vehicle " again with the unique number of dispatching from the factory of 6 bytes of the chip that has read, the new test key after drawing by the SHF cryptographic algorithm with " the machine station key " of 8 bytes again compares.
Conform to as comparison result, then the reporting system microcomputer is let pass to detected vehicle.
Do not conform to as comparing result, the information that then is about to reaches system microcomputer, and compare in " the doubtful point vehicle data storehouse " of depositing in the homologous ray microcomputer again, finds out whether to be reported a case to the security authorities stolen rob and lose or smuggle vehicle.
The vehicle such as the law enfrocement official that are stopped need inquire about this car more information, can pass through the relevant out of Memory of vehicle administration office, each province and city, Traffic Administration Bureau wide area network server calls whole nation data bank with the microcomputer of another All-China Federation of Taiwan Compatriots's net, so that deal with.
(7), self-propelled vehicle detection mode at random, its diagram of circuit is seen Fig. 6.
The maneuver detection mode must just can obtain effect preferably in conjunction with the fixed type detection mode, and on some meaning, self-propelled vehicle may also can be obtained better effect with machine testing.Be equipped with the read/write detecting unit on the inspection car, retrieve auxiliary unit, hand-held computer, radio modem, power inverter etc. fast, and have the special messenger to be responsible for.Carry out man-machine in conjunction with detecting.Have doubtful point vehicle data storehouse in the hand-held computer, can download in advance, also can pass through radio modem download in real time or additions and deletions in real time, change.Motor driven detects main convection current motor vehicle, also carries out with machine testing stopping vehicle; Testing result is except that being drawn the judgement by machine, also observation, the analysis by the people draws judgement, as the supervisory personnel find from " the international lifelong coding of vehicle " " vehicle " " license plate number " data of obtaining in certain car Sign Board with actual observation to " vehicle " " license plate number " be not inconsistent, the car of can stopping is done further query processing.The onboard system microcomputer also can be rented the GSM channel by the radio modem mode and connect with Traffic Administration Bureau's wide area network, to stopping vehicle when check, and can pass through the vehicle relevant data and the data of Traffic Administration Bureau wide area network server investigation each province, vehicle administration office, city data bank.Also can adopt hand-held microwave read/write device to carry out the motor driven casual inspection as required.
Three, the safety Design of present embodiment vehicle Antiforge electronic Sign Board, checking system
The safety of checking system relates to the Sign Board chip, read/write is examined then unit and system microcomputer, card sending system and network transmission.
(1), special requirement safe be anti-counterfeiting mark board chip, existing following several measures are guaranteed: 1) chip structure has the ROM district of 8 MCU and 4K byte.Data readable, not readable in the strict control store of actv. watchdog routine (COS) district can be write, can not write, can not change in security management mechanism by MCU and the ROM district.2) unique chip number that dispatches from the factory is deposited in 6 ID districts that byte can not be rewritten, and has guaranteed the uniqueness more than 1/4300000000th.3) " the international lifelong coding of vehicle " of 22 bytes of reservation with " the chip unique number " of 6 bytes, adds that " the machine station key " of 8 bytes draws 6 byte test keys of a high security by irreversible secret test key function S HF algorithm.Because secret test key function is an one-way function, promptly known x asks y=f (x) to be easy to, and known conversely y asks X then can not estimate, has guaranteed its irreversibility.Secret test key function also has good randomness, as imports entirely 0, exports non-entirely 0, and 0 and 1 number is approaching in the output; Import entirely 1, export non-entirely 1, and 0 and 1 number is approaching in the output; Change arbitrarily in the input 1, the variation figure place of output will reach about half of total bit.Because irreversibility and randomness, it almost is impossible that test key is forged in attempt.Facts have proved that secret test key function calculation produces a test key and only needs 3.3ms, and total procedure quantity is less than the 1K byte.
(2), read/write detecting unit and system safety will combine with the strict control system of traffic control business department.System operation supervisor authority and operation mandate on duty are arranged.If desired with transmission data encipher, be transferred in the Sign Board chip with the ciphertext form, can in the read/write detecting unit, add " the encrypted master IC " of example, in hardware.As have based on asymmetric arithmetic, 16 bit CPUs, 1100 algorithm for encryption associations handle, write/erasing time is 1.8～3.6ms, model is the encrypted master of SLE66CX80S.Also can use and roll encrypting and will be transferred to after the data encryption in the Sign Board chip, the rolling enciphered method has can encrypt any number with an information, irreversible, adds (separating) decryption key one to one, key can from four to tens to characteristics such as hundreds of positions.
(3), the safety of card sending system will combine with the management system and the management system of traffic control business department especially.The method that conditions each other is authorized in strict implementation supervisor authority and operation.
(4), the network safety of transmission is operated according to the real network of traffic control department and the safety standard of localized network basically.Emphasize empowerment management, the encryption handling of critical data and three grades of dynamic key managements of network transmission.
(5), system microcomputer is with the network interface of traffic control business department, be connected by normalized network transmission standard and interface standard.
Table one has been listed the resources allocation of present embodiment vehicle Antiforge electronic Sign Board chip-stored information; Table two has been listed the situation of the identifier cog region of 10 bytes in the microwave computer chip.
Table one: the resources allocation of chip-stored information
Table two: the identifier cog region of 10 bytes in the microwave computer chip
| Numbering | Name of the information | Data mode | Byte number | The address | Other |
| 1 | The international lifelong coding test key tail tag will of head will vehicle | Fixing fixing arbitrarily | 1B 22B 6B 1B | 00H 01_16H 17_1CH 1DH | ' M ' Chinese character is less than five, English less than five, digit count generation ' K ' |
| 2 | Car owner's cermet of identification test key | Numerical value is any | 10B 6B | 1E_27H 28_2DH | Packed BCD sign indicating number (true length: 20 characters) calculate generation |
| 3 | The license plate number test key | Arbitrarily | 10B 6B | 2E_37H 38_3DH | By Chinese character. English. numeral is formed calculating and is produced |
| 4 | Motor Number | ASCII | 21B | 3E_52H | By 21 English. numeral is formed |
| 5 | Vehicle frame number | Arbitrarily | 23B | 53_69H | By 21 Chinese characters. English. numeral is formed |
| 6 | Cognizance code | Arbitrarily | 17B | 6A_7AH | Any character |
| 7 | Vehicle | Chinese character | 10B | 7B_84H | 1-5 Chinese character |
| Remaining space | 122B | 85_FFH | Can give over to one card for multiple uses according to development need |
Claims (2)
1, a kind of vehicle Antiforge electronic Sign Board, it includes treater (CPU), read-only memory (ROM) (ROM), dynamic memory (RAM), microwave transmitter, microwave receiver, wakeup time device, identifier cog region; Microwave transmitter, receiver are used for linking with external device, write the data in data or the read-out mark board in Sign Board; It is characterized in that: the unique number of dispatching from the factory that a chip is arranged in the identifier cog region of each Sign Board; Store following various code among the described dynamic memory RAM: " vehicle international lifelong coding ", car owner's identification card number, license plate number, Motor Number, vehicle frame number, vehicle, cognizance code; Store management of software ic system (COS) in the described read-only memory (ROM) (ROM), i.e. watchdog routine is managed reading or can not reading and writing maybe can not writing, change maybe and can not change of information in the above-mentioned dynamic memory (RAM); It also comprises the wakeup time device, is used to control " dormancy " and mode of operation conversion of Sign Board; Microwave transmitter, the used frequency of receiver are one of following three frequency ranges: 900～928MHZ, 2.45GHZ, 5.8GHZ.
2, vehicle Antiforge electronic Sign Board as claimed in claim 1 is characterized in that: be provided with data self-destruction terminal in the Sign Board, when meeting destruction or being taken away by force, the storage data disappear automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99116262A CN1103298C (en) | 1999-06-30 | 1999-06-30 | Antiforge electronic license plate of vehicle and its discrimination system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99116262A CN1103298C (en) | 1999-06-30 | 1999-06-30 | Antiforge electronic license plate of vehicle and its discrimination system and method |
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| Publication Number | Publication Date |
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| CN1279172A CN1279172A (en) | 2001-01-10 |
| CN1103298C true CN1103298C (en) | 2003-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN99116262A Expired - Fee Related CN1103298C (en) | 1999-06-30 | 1999-06-30 | Antiforge electronic license plate of vehicle and its discrimination system and method |
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| CN (1) | CN1103298C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102054353A (en) * | 2009-10-27 | 2011-05-11 | 杨金龙 | Vehicle anti-theft anti-fake management system |
| CN102963315A (en) * | 2012-12-03 | 2013-03-13 | 耿梦竹 | System for monitoring own license plate of motor vehicle in driving cab |
| CN104986144A (en) * | 2015-06-25 | 2015-10-21 | 王方圆 | Intelligent automobile anti-theft system |
| CN105788294A (en) * | 2016-05-05 | 2016-07-20 | 厦门精图信息技术有限公司 | Driving management system based on place name logo and microwave technology and fake plate preventing method |
| CN107045791A (en) * | 2017-03-16 | 2017-08-15 | 王德旺 | The implementation method of automobile and motorcycle Intelligent traffic management systems |
| CN111114461B (en) * | 2019-12-30 | 2021-04-16 | 新辉开科技（深圳）有限公司 | Electronic license plate management system and method and remote management electronic license plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456916A1 (en) * | 1990-05-11 | 1991-11-21 | Telettra Espana, S.A. | Integral protection system for vehicles |
| CN1159990A (en) * | 1996-03-20 | 1997-09-24 | 陆欣 | Electronic number plate for automobile |
| CN2273266Y (en) * | 1996-07-09 | 1998-01-28 | 黄雨霖 | Infrared licensing for vehicle |
| US5719550A (en) * | 1994-05-20 | 1998-02-17 | Licentia Patent Verwaltungs-Gmbh | Arrangement for identification of a movable object having a transponder |
| CN2286701Y (en) * | 1996-11-25 | 1998-07-29 | 济南新天宇计算机系统工程有限责任公司 | Wireless teledetection electronic license plate for motor vehicle |
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1999
- 1999-06-30 CN CN99116262A patent/CN1103298C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456916A1 (en) * | 1990-05-11 | 1991-11-21 | Telettra Espana, S.A. | Integral protection system for vehicles |
| US5719550A (en) * | 1994-05-20 | 1998-02-17 | Licentia Patent Verwaltungs-Gmbh | Arrangement for identification of a movable object having a transponder |
| CN1159990A (en) * | 1996-03-20 | 1997-09-24 | 陆欣 | Electronic number plate for automobile |
| CN2273266Y (en) * | 1996-07-09 | 1998-01-28 | 黄雨霖 | Infrared licensing for vehicle |
| CN2286701Y (en) * | 1996-11-25 | 1998-07-29 | 济南新天宇计算机系统工程有限责任公司 | Wireless teledetection electronic license plate for motor vehicle |
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| CN1279172A (en) | 2001-01-10 |
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