CN1253837C - Distributed vehicle radio inquiry method and vehicle household registration network management systems - Google Patents

Distributed vehicle radio inquiry method and vehicle household registration network management systems Download PDF

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CN1253837C
CN1253837C CN 03106562 CN03106562A CN1253837C CN 1253837 C CN1253837 C CN 1253837C CN 03106562 CN03106562 CN 03106562 CN 03106562 A CN03106562 A CN 03106562A CN 1253837 C CN1253837 C CN 1253837C
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card
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CN1439549A (en
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陶显芳
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Abstract

The present invention provides a new technique method for automotive vehicles with high flow rate to carry out dynamic monitoring, positioning and attribute identification, particularly a distribution type radio inquiry method, and also relates to a device with the method, particularly to a vehicle household network management system. The method and the device can effectively monitor the quantity of automotive vehicles on running roads, and simultaneously identify the attributes of a plurality of automotive vehicles. The present invention provides various vehicle accurate data for the traffic network management and the fully automatic fee charging of roads, bridges, park lots and highways. On the basis of an electronic vehicle card (IC card) and an electronic driving license (a vehicular information processing system), the vehicle household network management system is a large data base management system that an internet is used as a communication tool, an electronic computer is used as an information processing center, effective management and various automation services on various vehicles can be carried out, and the national range is covered.

Description

Distributed automobile wireless electricity query method and vehicle household register network management system
Technical field
The present invention relates to a kind of distributed automobile wireless electricity query method and vehicle household register network management system, relate in particular to a kind of method of motor vehicles being carried out radio inquiry, monitoring, location and identification, and be mainly used in the urban transportation automatic management, with automatic fare collection systems such as various road and bridge, highway, parking lots, and vehicle household register network management system (being called for short CWGS, CHE-LIANG WANG-LUO GUAN-LI SYSTEM).
Vehicle household register network management system utilizes modern electronic technology with computer networking technology vehicle residence management, toll management management, traffic lights control, and the tracking of hit-and-run vehicle and the various services relevant with vehicle of robbed or burgled vehicle to be combined together, realize vehicle management robotization, mobilism, real time implementation, it will bring revolutionary progress to the vehicle residence management of China.
Background technology
At present China is that vehicle supervision department provides car plate and driving license to vehicle to the fundamental method of vehicle supervision, and both are carried out the vehicle residence management.Car plate is vehicle unique legal sign of estimating of setting out on a journey, and driving license is vehicle unique legal voucher of setting out on a journey.Car plate is the sheet metal converted products, makes easily, and easy installation and removal, therefore, false license plates are also than being easier to; Driving license is a paper document, and making or forging does not have difficulty yet.
Because the flowability of vehicle is very big, with present artificial checking method, we can't check one by one the vehicle in the middle of advancing, also can't effectively manage the vehicle that number grows with each passing day.On the other hand, various charges and the service relevant with vehicle, as: vehicle royalities, road toll, gap bridge, toll, delay penalty, insurance, maintenance and repair, traffic inquiry; Also have the tracking of robbed or burgled vehicle and hit-and-run vehicle, and the management of government, army's special car or the like; The unit relevant with vehicle has been not the vehicle supervision department of vehicle, is that management or service all are badly in need of increasing work efficiency.
In addition, the user has also proposed more and more higher requirement to management and service, whenever walks a department, and once team all will be arranged in one critical point of every mistake, and queuing again and again is the most tedious thing.Can how improve the work efficiency of traffic administration and service department, make vehicle residence management and various toll administration, annual examination management, even hit various crimes of vehicle or the like work, realize robotization, intellectuality, this be the problem of our urgent research.
Can realize management fast and effectively to motor vehicles, depend primarily on whether high efficient and reliable of inquiry to motor vehicles, monitoring, localization method.Obviously, the method for at present both at home and abroad motor vehicles being carried out dynamic monitoring, location does not all reach gratifying degree.At present both at home and abroad the method that motor vehicles are carried out dynamic monitoring, location has three kinds:
First kind is to adopt global position system.Being called for short gps system, is a SPS signal to be installed receive and radio transmission apparatus on motor vehicle, and each motor vehicle all has an own special-purpose coding.By receiving the signal of global position system, phase data from the different directions signal is calculated, obtain the relative coordinate position of this motor vehicle, and signal is passed to communication network by the radio transmission apparatus on the car, by communication network the coding of motor vehicle and position data are pooled to information processing centre again.This method bearing accuracy is not high enough, and signal is blocked and be subjected to weather influence easily by buildings, and performance is extremely unstable, and equipment cost is very high, also need pay a communication network in the daily running and rent the loan expense, is difficult to use in the urban traffic network management system.
Second kind is to adopt the cellular radio positioning system.This method can be used the existing GSM or the CDMA mobile communication network equipment, constantly send the signal that has positional information towards periphery, radio receiver-transmitter is housed on motor vehicle, its principle of work also is to send the phase differential that signal exists by receiving different directions, obtain the residing coordinate position of receiving trap by phase differential again, and signal is passed to communication network by the radio transmission apparatus on the car, by communication network the coding of motor vehicle and position data are pooled to information processing centre again.This method equipment investment cost is still very high, and along with the development of urban construction, the boundary condition of this network needs frequent change, and not only cost is big, and has a strong impact on locating effect, and its bearing accuracy is than gps system difference.
The third is the staggered localization method of control tower, set up three or be one group high frame iron tower at peri-urban with three, and installation radio transmitting apparatus, motor vehicle receiving traps all in the district send signal, and receiving trap just can converse own residing coordinate position by the phase differential of received signal.This system be subjected to skyscraper reflection and the influence of blocking very serious, thereby produce many blind areas, use is very limited.
More than the common ground of three kinds of prior aries all be by receiving the signal that different directions transmits simultaneously, further obtain the residing coordinate position of receiving trap according to the phase differential of signal, and then the information of motor vehicle is sent to information processing centre by dispensing device and communication network.This several method measuring accuracy poor motor vehicles of high-speed motion (particularly for), information processing rate is slow, can't be used for the control of big highway full automatic charging station of motor vehicle flow and urban transportation traffic lights.
Except top three kinds of localization methods, for the automatic charge station of highway, the method for both at home and abroad the motor vehicles attribute being discerned also has three kinds at present.
First kind is camera technique.The macroscopic features of motor vehicle and the number-plate number are absorbed with video camera in the monitoring point, carried out image recognition processing then.Advantage is that cost is low, and shortcoming is to be subjected to effects limit such as the distance of image capture angle, light, illuminance and motor vehicles and movement velocity, and anti-counterfeiting performance is poor, and image recognition processing speed is slow.
Second kind is the microwave signal monitoring technology.In the monitoring point microwave signal is installed and transmits and receives device, monitored motor vehicles also install on one's body one corresponding with it, receive the microwave device that sends with microstrip antenna, and embedded scrambler.When monitored vehicle enters the EFFECTIVE RANGE scope of monitoring device, monitoring device is to the microwave receiving device launched microwave signal of monitored vehicle, after the microwave receiving device of monitored vehicle receives microwave signal, at first be microwave energy to be changed into direct current be stored in the capacitor, power to scrambler then, scrambler changes into microwave signal to electric energy by modulation again and sends to the monitoring side receiving trap, and this is a question and answer mode query script.The advantage of microwave signal monitoring technology is, can be accurately and fast detecting, discern the attribute of vehicle; Shortcoming is that cost is very high, and in addition because the microwave directivity is very strong, and the energy of microstrip antenna reception transmission signal is very little, so its operating distance is very short, particularly when rainy weather, its operating distance is shorter, probably can't operate as normal.External electronic charging system without parking (ETC) is exactly to adopt this microwave signal monitoring method at present, and this method frequency range commonly used is 5.795-5.815GHz, modulation system ASK, and BPSK, output is greater than power 300mW, and propagation distance is greater than 10M.
The third is the radio automatic identification technology.In the monitoring point radio signal is installed and transmits and receives device, a corresponding with it radio signal also is installed on monitored motor vehicles transmits and receives device, and embedded scrambler.Its principle of work is very similar to the microwave signal monitoring technology, only is to use the frequency of operation difference, and vehicle-mounted radio signal to transmit and receive device be not from the other side's received energy, but provide energy by oneself vehicle-mounted direct supply.Its advantage is, cost is low, and operating distance is far away; Shortcoming is that directivity is very poor, when the monitoring point when a car is inquired about, all receive the vehicle of signal and all can answer simultaneously, an a lot of signal are piled up simultaneously, a problem is to produce signal blockage, code translator can't be deciphered, another be message handler can't from numerous vehicles, select like that the monitoring side can't operate as normal in this case.
More than three kinds of existing vehicle Attribute Recognition technology all have a critical defect, can only carry out Attribute Recognition to single in-plant target exactly, and require the movement velocity of target can not be fast, such result makes information processing rate become very slow, can't be used for the big occasion of motor vehicles flow, as highway full automatic charging station and the control of cross street traffic lights dynamic and intelligent.
Summary of the invention
At the deficiencies in the prior art, the purpose of this invention is to provide a kind of distributed radio query method and vehicle household register network management system, its motor vehicles that have big flow carry out functions such as dynamic monitoring, location, Attribute Recognition, and this method and apparatus is the number of monitoring motor vehicle on certain travels effectively, and the attribute that can discern many motor vehicles simultaneously; The various accurate data of vehicle are provided for transportation network management and road and bridge, parking lot, highway full automatic charging; For urban traffic control provides the motor vehicles multidate information; For nationwide motor vehicles household register network management provides the vehicular movement real-time information; For the tracking of robbed or burgled vehicle and hit-and-run vehicle provides information.
The scheme of finishing above-mentioned task is as follows:
A kind of distributed automobile wireless electricity query method, it may further comprise the steps: A, the on-vehicle information processor is set on each motor vehicle; B, interconnective terrestrial information processor and inductive coil device are set in each vehicular control query point; Inquire about and mutual exchange message by the mode of wireless data transmission between C, terrestrial information processor and the on-vehicle information processor, described terrestrial information processor is transferred to the on-vehicle information processor with the attribute information of the vehicular control query point of living in of its storage, the on-vehicle information processor correspondingly earthward message handler transmit the attribute information of the affiliated vehicle of its storage, the terrestrial information processor carries out control by the vehicle attribute information that receives to be handled; Or described terrestrial information processor is sent to the traffic management information processing enter to the on-vehicle information processor data that receives after treatment again and carries out control and handle, for urban transportation robotization, intelligent management provide various authentic datas; D, vehicle are by before the described vehicular control query point, elder generation's touch inducing coil device also makes described terrestrial information processor and information is inquired about and intercoursed to described on-vehicle information processor once more, is the described vehicle that has carried out the control processing to confirm this vehicle; E, described query point attribute information comprise that one or more in place numbering, expenses standard, the dealing direction, described vehicle attribute information comprise one or more in the number-plate number, type of vehicle, the dealing direction.
Above-mentioned distributed automobile wireless electricity query method, it also comprises: between A, described terrestrial information processor and the on-vehicle information processor, the condition code that also comprises time changing in the information of intercoursing, realize between terrestrial information processor and the on-vehicle information processor point-to-point with this, or point-to-multipoint is carried out wireless data transmission, to reach various vehicles are inquired by classification, inquired about in batches, perhaps the several working ways of inquiring about one by one; B, when carrying out query communication, constantly condition code is added new information at every turn, make data constantly carry out refile, to realize that numerous vehicles are carried out dynamic tracking by request signal; C, the terrestrial information processor is constantly when the on-vehicle information processor sends request signal, also constantly change the information of part in the condition code according to certain rules, make the terrestrial information processor at every turn when numerous vehicles send request signal, some on-vehicle information processor only, the on-vehicle information processor of particularly receiving for the first time request signal is preferential with answering, rather than all on-vehicle information processors all will be answered when receiving request signal at every turn, to prevent to repeat to answer the probability of increase signal collision and the workload that minimizing terrestrial information processor is handled invalid information.When D, each vehicle enter place, expressway access or traffic main artery, the terrestrial information processor can send request signal to the on-vehicle information processor by ground inductive coil device, and to the vehicle of process carry out accession designation number one by one, next terrestrial information processor just can be undertaken vehicle being inquired about by accession designation number point-to-pointly, to increase work efficiency; E, on-vehicle information processor can be connected with other electronic equipment by data input, output port, and the data of other electronic equipment can be transmitted by the wireless communication between on-vehicle information processor and the terrestrial information processor.
Above-mentioned distributed automobile wireless electricity query method, it also comprises: A, at each traffic check point, or pass a bridge, the underground inductive coil device that all is embedded with in passageway of the charge station of passing by on one's way, and be connected with the terrestrial information processor, this inductive coil device can be realized two functions by the automatic control of electronic switch, one is the existence that can detect the vehicle of passing by on one's way, and is used for the position of vehicle is accurately located; Another is to send low frequency radio request signal as the low frequency transmitting antenna of terrestrial information processor to the on-vehicle information processor; B, when described terrestrial information processor is arranged at the urban traffic intersection, a plurality of described inductive coil devices are spaced and are installed on the traffic intersection passage, vehicle above the inductive coil device through out-of-date, the inductive coil device will detect the existence of vehicle, the summation of these inductive coil device useful area and the ratio of vehicle useful area, it is exactly the sum of vehicle, scan and data sampling by duty each inductive coil device, with realize constantly knowing exactly travel on the number of vehicle; C, when described terrestrial information processor is arranged at the gateway, expressway, when vehicle passes through the inlet of highway, porch terrestrial information processor is when inquiring about the on-vehicle information processor, the attribute information of this entrance is sent to the on-vehicle information processor, the on-vehicle information processor is noted the attribute data of this entrance, when vehicle process exit, just can nullify it, realize that with this direction and distance that vehicle is walked have also write down, for charge provides foundation, do not need the internet can realize automatic charge yet; D, when described terrestrial information processor is arranged at gateway, parking lot fee collection management place, when vehicle enters parking lot fee collection management place inlet, the on-vehicle information processor is at first sent request signal by the terrestrial information processor by the inductive coil device and inquires about, and the prompting vehicle drivers is voluntarily by inputing password in the on-vehicle information processor, pass through mutual communication, making in the storer of terrestrial information processor and on-vehicle information processor all can resident this password, when vehicle leaves EXIT, vehicle drivers is once more by prompting input password, if password is imported rightly, vehicle is let pass, and nullify this password, if password is imported not rightly, just no thoroughfare for vehicles in the exit in parking lot, if this vehicle is to take illegal means to leave the parking lot, this password is as a condition code and storage, no matter anywhere to realize making this vehicle, the terrestrial information processor that all is set at its elsewhere is inquired about and is reported to the police, and tracing for vehicle provides foundation.
A kind of vehicle household register network management system, it comprises the on-vehicle information processor that is arranged at each vehicle, be arranged at terrestrial information processor and the connected ground inductive coil device and the data processing centre (DPC) of each vehicular control query point, described on-vehicle information processor comprises vehicle attribute information processing unit and signal transmitter/receiver circuit, described terrestrial information processor comprises signal transmitting unit and signal receiving unit, described terrestrial information processor adopts the wireless data transmission mode that the on-vehicle information processor is carried out queried access by signal transmitting unit and signal receiving unit, the on-vehicle information processor adopts the wireless data transmission mode that the terrestrial information processor is answered by vehicle attribute information processing unit and signal transmitter/receiver circuit, both sides exchange described query point attribute information and vehicle attribute information, and above-mentioned data are sent to data processing centre (DPC) by data transmission network carry out control and handle.
Above-mentioned vehicle household register network management system, the vehicle attribute information processing unit of described on-vehicle information processor and signal transmitter/receiver circuit specifically comprise interconnective electronic license plate IC-card read write line, has coding, the microprocessor of decoding function and high frequency radio signal transmitter/receiver circuit, and inductive coil device low frequency signal receiving circuit and signal anticollision circuit, information display and interface circuit, wherein, content in the scrambler mainly is the attribute information of vehicle and the information that is used for signal transmission and security of system, and this scrambler is a dynamic coding device, content wherein need be by ability operate as normal after the content in the IC-card read write line read-write input IC-card, and the content in the scrambler carried out dynamic coding, to realize encryption, in addition, the request signal that the signal transmitter/receiver circuit receives also will be encoded to the content in the scrambler, so that among the content that the attribute of request signal also is added in the scrambler, so that data processing centre (DPC) carries out information processing.
Above-mentioned vehicle household register network management system, interconnective scrambler, high-frequency signal modulator, low frequency signal modulator, inductive coil device, inductive coil device signal deteching circuit, control circuit, the interface circuit of comprising of the signal transmitting unit of described terrestrial information processor, its effect are to produce request signal; Signal receiving unit comprises radio signal receiving circuit, signal anticollision circuit, decoding scheme, data processing circuit, control circuit, interface circuit, its effect is the signal that receives the on-vehicle information processor, and carry out information processing, described scrambler is a dynamic coding circuit, be used for transmission data and condition code data are encoded, coded signal can transmit to the on-vehicle information processor by high frequency antenna or inductive coil device after high frequency modulated.
Above-mentioned vehicle household register network management system, the terrestrial information processor also is provided with a storer, be used for storage attribute code and condition code edited, the terrestrial information processor is constantly when the on-vehicle information processor sends request signal, also change the partial information in the condition code according to certain rules, make the terrestrial information processor at every turn when numerous vehicles send request signal, have only part on-vehicle information processor preferentially to answer, rather than all on-vehicle information processors all will be answered when receiving request signal at every turn, to prevent to repeat to answer the probability of increase signal collision and the workload that increase is handled invalid information.
Above-mentioned vehicle household register network management system, the signal transmitting unit of described terrestrial information processor produces request signal and visits in the following three kinds of mode of operations of on-vehicle information processor adopting one or more: first kind is high-frequency signal active inquiry mode, and promptly constantly all can receive that the vehicle of signal sends request signal to the signal transmitting unit of terrestrial information processor by high frequency radio sky alignment; Second kind is low frequency signal passive query mode, be that vehicle is from inductive coil device process the time, at first sensed coil device detects, and triggers terrestrial information processor signal transmitting element then, sends the low frequency request signal by telefault low frequencies sky alignment on-vehicle information processor; The third is a low frequency signal active inquiry mode, the signal transmitting unit that is the terrestrial information processor is by the inductive coil device, constantly launch the low frequency request signal, when vehicle above the inductive coil device process time, the on-vehicle information processor will be received request signal.
Above-mentioned vehicle household register network management system, when described on-vehicle information processor produces recall signal, pulse code signal output is not to adopt fixed frequency to send working method continuously, but adopt the working method that intermittently sends signal, promptly produce a voltage sawtooth wave by a saw-toothed wave generator, with this sawtooth wave a voltage controlled oscillator is modulated again, its output recurrence interval or frequency are constantly changed by the voltage change ratio of sawtooth wave, that is: producing scanning frequency pulse exports, come the output of controlled encoder signal with scanning frequency pulse then, code device signal output is single group coding pulse signal or many group codings pulse signal.
Above-mentioned vehicle household register network management system, described terrestrial information processor comprises a signal anticollision unit, so that the coded pulse signal that the relative phase that a plurality of on-vehicle information processors send constantly changes is sequentially lined up a sequence, and after being stored, the input information processor is handled again, described signal anticollision unit is that a switching regulator electric charge of being made up of active device shifts delay circuit, and described switching regulator electric charge shifts the last output terminal of delay circuit a pulse shaping circuit also is installed, so that signal can not be out of shape through how many times circulation time-delay.
Above-mentioned vehicle household register network management system, one or more in following three kinds of mode of operations are adopted in the encryption of content in described IC-card or the scrambler:
A, the user side encryption technology, promptly be when producing IC-card and IC-card read write line, just specially reserving some yards position uses for the user, the user can encrypt by the read write line of the on-vehicle information processor on the own car before using, password is write among the IC-card of oneself, but in the on-vehicle information processor system, do not store this password, the read write line of on-vehicle information processor can be clearly once zero to encryption memory again every tens seconds, when in use, IC-card one place in circuit, the read write line of on-vehicle information processor is at first wanted the verified users password, if IC-card is not encrypted, be that user code is " 0 " entirely, because the read write line of on-vehicle information processor is always to the encryption memory zero clearing, both passwords all are that " 0 " is just in time by to last, system is through verification, praise and get final product operate as normal after errorless, if IC-card has added close, must give the read write line input password of on-vehicle information processor, and must in tens seconds, finish, system's meeting automatic clear, if password is imported correctly, system gets final product operate as normal after praising through verification, if password is imported incorrectly, system's meeting automatic clear, and require the user to re-enter again, allow the user to input password three times at most, if not right at every turn, system can carry out locked automatically;
B, system's scrambler encryption technology, promptly be in IC-card, specially to reserve some yards position to use for encrypting, when vehicle the time at last car plate, car plate administrative authority need be input to the attribute of vehicle among the database of vehicle household register network management system by computer, simultaneously computer also can be at random some codings---scrambler, be added among the attribute coding of vehicle, and produce one group of new and the unique corresponding new coding of vehicle, this group scrambler managerial personnel can't know, have only vehicle household register network management system to know, so just can prevent managerial personnel and other staff cheating effectively, the cover board;
C, user side scrambler encryption technology, promptly between IC-card and on-vehicle information processor, carry out simultaneously, when vehicle the time at last car plate, car plate administrative authority need be input to the attribute of vehicle among the database of vehicle household register network management system by computer, simultaneously computer also can be at random some codings---scrambler, be added among the attribute coding of vehicle, and produce one group of new and the unique corresponding new coding of vehicle, this group scrambler managerial personnel can't know, have only the vehicle household register NMS on-vehicle information processor of unifying to know, that is: the on-vehicle information processor also will be provided with some passwords and IC-card and is used, so just can prevent managerial personnel and other staff cheating effectively, the cover board guarantees that an IC-card can only use by a corresponding ADPA on-vehicle information processor simultaneously more reliably.
Above-mentioned vehicle household register network management system, the encryption of content divides three grades of rudimentary encryptions, encrypted intermediate, superencipherment in described IC-card or the scrambler, and is specific as follows:
A, rudimentary encryption, be some yards position to be set use in IC-card for encrypting, and these yards position is defined as " dossier mark ", when calling the IC-card user data at every turn, the data processing centre (DPC) of vehicle household register network management system also to change " dossier mark " in the IC-card, in the storer of on-vehicle information processor, also set up simultaneously such " dossier mark " to use for verification, low level encryption method is only encrypted between the read write line of IC-card and on-vehicle information processor, and the data processing centre (DPC) of vehicle household register network management system has only done some change of secret code work;
B, encrypted intermediate, be to encrypt at the place, data input port of data processing centre (DPC), data processing centre (DPC) is when carrying out digital coding to IC-card, just reserve some yards position and encrypt use to the user, when providing IC-card, the user can import the password of oneself on the IC-card read write line of data processing centre's configuration, and password storage on the IC-card of oneself, this password is only held by the user is unique alone, when in use, the read write line of on-vehicle information processor is at first read this password in the coded system that deposits the on-vehicle information processor in together with its data, when both sides carry out exchanges data, the coded signal of on-vehicle information processor will send data to data processing centre (DPC) by radio communication and data network transmission system, and password is temporarily resided in the system of data processing centre (DPC), require then the user choose down the input password carry out verification, user registration success is correctly represented in verification, the service communication contact that can be correlated with, if password is imported incorrectly, system can require the user to re-enter again, allow the user to input password three times at most, if it is not right at every turn, system can carry out locked automatically, and reports to the police;
C, superencipherment is with key existing coding to be upset recompile, decode with key again in decoding end then, the superencipherment here is meant, adopt M sequence pseudo-random code to work as key and carry out superencipherment, the M sequence is exactly a shift register of being made up of a plurality of feedback ports, the repetition period of its output signal is very long, can regard random code as, IC-card is made into the little process information system of a band CPU, can change the feedback inlet or the pitch of M sequence by software at any time and change key, after handling like this, each data in the IC-card are not independently, but relevant, change any one digit number certificate artificially, the decoding end all can be found, and report to the police.
All be furnished with an IC-card that is called electronic license plate on each motor vehicle, and use simultaneously with the ADPA on-vehicle information processor that is called the electronics driving license (AUTOMOBILE DATA PROCESS APPARATUS).FDPA terrestrial information processor (FLOOR DATA PROCESS APPARATUS) all is installed on each check point of urban transportation, FDPA terrestrial information processor is by high frequency antenna and ground inductive coil device, carry out wireless communication with ADPA on-vehicle information processor, car is inquired about and located, realize that several data transmits mutually and handles, and be connected with traffic administration data processing centre (DPC) by communication network, for urban transportation robotization, intelligent management provide various authentic datas.
The electronic license plate IC-card is advanced large scale integration product, the legal information of vehicle such as the internal memory number-plate number, vehicle, engine number, and enciphered message, and antifalsification is very high.Can read and write data to the electronic license plate IC-card by read-write machine dedicated.
All load onto one by the electronic license plate read write line and have the microprocessor of coding, decoding function and the ADPA on-vehicle information processor that apparatus for receiving and transmitting radio signal combines and constitutes on each car, it is equivalent to an electronics driving license.
When the data of electronic license plate IC-card must be consistent with the data in the scrambler, ADPA on-vehicle information processor could normally use.Can effectively take precautions against like this vehicle change board, the cover board lawbreaking activities, guarantee that each car has only a sole legal identity, vehicle can only with the corresponding use of unique legal electronics driving license, other cars can't be palmed off, the assurance vehicle the driving certificate genuine and believable.When the data of electronic license plate IC-card and the data in the scrambler are inconsistent, just can think that this car is illegal use, ADPA on-vehicle information processor will be reported to the police automatically.
We also carry out very strict the encryption to the user code of electronic license plate, guarantee that electronic license plate can't carry out bootlegging, also set the authority of different levels for vehicle supervision department, prevent from that the staff from exploiting one's office to exceed the bounds to play one's own game.
Electronic license plate is to all data of user, as the number-plate number, vehicle, picture, engine number, the every special information on services that also has customer requirements, be stored in all in the electronic computer system of traffic administration data processing centre (DPC), EDSL (ETHERNETDIGITAL SUBSCRIBER LINE) (ether data user net) system by the internet can be connected with the computer system of a plurality of service departments again again, as bank, the tax, public security, road administration, maintenance, detection etc.Just can realize various automatic electronic service by being connected with the system of these different industries.
Vehicle user at first will be set up a special bank account when registering the license, vehicle supervision department all deposits the content of the data of vehicle and customer requirements service in electronic computer system, and related data is also imported in the electronic license plate IC-card.The electronic license plate that has data inserts and has in the ADPA on-vehicle information processor of radio receiver-transmitter, can carry out various management and charge robotization service.
At those toll on the road and bridge stations or parking lot and traffic main artery check point all install one with the corresponding FDPA terrestrial information of ADPA on-vehicle information processor processor, mainly have by a band microprocessor that coding and decoding and signal send and the signal transmitting unit and the signal receiving unit two large divisions of receiving function form.When vehicle and charge station during at a distance of about 300 meters left and right sides, FDPA terrestrial information processor will send request signal to the vehicle of preparing by our station, ADPA on-vehicle information processor will be answered the identification signal of this car after receiving signal by radio transmission apparatus, after FDPA terrestrial information processor is received recall signal, carrying out simple data earlier handles, data are sent in the electronic computer system of local robot calculator or traffic administration data processing centre (DPC) by EDSL (ether data lan) network system then and handle, the gap bridge toll is prepared to deduct from bank account, then processing result information is returned to FDPA terrestrial information processor.We are referred to as the information pre-service this process, also will confirm at last to handle.
Passing by on one's way at gap bridge, the passageway of charge station is underground also to be embedded with an inductive coil device, is used for vehicle is carried out precision positioning.This inductive coil device has two functions, and one is the existence that can sense the vehicle of passing by on one's way, and another is to send radio signal to vehicle.When vehicle passes through the passageway of charge station, FDPA terrestrial information processor not only can accurately be located vehicle, also send request signal to the passageway vehicle once more with long wave simultaneously by this underground inductive coil device, through reaffirming errorless after, just the gap bridge toll is deducted from bank account, and relevant information (vehicle, expenses standard, account account etc.) is shown by LED display.
What point out in passing for vehicle and charge station at a distance of time, FDPA terrestrial information processor will send request signal to the vehicle of preparing by our station, this distance is to set arbitrarily according to the processing speed of system and the speed of a motor vehicle, in fact the request signal transmitter in the FDPA terrestrial information processor partly can separate with receiving system, it can be installed in any distance beyond the charge station, and its function just triggers ADPA on-vehicle information processor and sends the signal that has number-plate number information.For example, establish vehicle and in 300 meters distances, pass through charge station, can have 54 seconds time to communicate and data processing so for FDPA terrestrial information processor with average 20 kilometers/hour.If the time is not enough, can be increased to 500 meters or 600 meters to distance so, or just allows the speed of a motor vehicle slow down.Travelling speed according to present EDSL (ether data lan) network system, this time is more than sufficient, but for the situation of striding the major region network communication individually, also accidentally the communication phenomenon of blocking can appear probably at present, but, believe that this problem will can solve very soon along with rapid development of network technology.We adopt Dynamic Packet aspect software design in addition, and the vehicle of the our station of often coming in and going out is divided into one group, adopt the registration of transferring the files to organizing outer newcomer, and vehicle can improve search efficiency greatly in methods such as road registrations.
CWGS vehicle household register network management system mainly all is to realize with the ADPA on-vehicle information processor that has radio receiver-transmitter by being inserted with electronic license plate on the car to management of vehicles and service.As carrying out the dynamic traffic management to the vehicle in certain city, as long as a FDPA terrestrial information processor all is installed on all traffic main arteries in city, with it come to car inquire about or claim ground point sampling, this FDPA terrestrial information processor can pass through EDSL (ether data lan) internet or cdma communication system is connected with the computer system of traffic control center, just can gather the traffic data of various vehicles.
Traffic control center has the giant-screen electronic chart of whole city's scope or institute's area under one's jurisdiction scope, and electronic chart accurately demonstrates traffic route and avenue, and can amplify or dwindle area and the urban road that shows that we paid close attention to.The difference of electronic chart and general map is, operating functions such as electronic chart has amplification, dwindles, roaming, translation, all FDPA terrestrial information processors all accurately are positioned on the electronic chart one by one, the position data of administrative center by FDPA terrestrial information processor scan for inquiries is collected vehicle just can demonstrate the dynamic traffic situation of entire city vehicle on electronic chart.On electronic chart, not only can see flowing of vehicle, can also see the number-plate number of vehicle.
When suspect vehicle need be inquired about by public security traffic control department, can lock suspect vehicle, when suspect vehicle occurs, automatically report to the police at once, where it goes to, and where cursor just is indicated to, and can read its residing orientation, can also be during particular case to the deploying to ensure effective monitoring and control of illegal activities or follow the tracks of the scheme of advising of this car, the prompting and command center personnel handle accordingly.This information is easy to send higher level relevant departments to by the internet, just can concentrate the human and material resources of each side to stop and dispose in a short period of time for megacase, improve case handling efficiency greatly and firmly grasped the initiative that vehicle is supervised.
For the vehicle supervision department that does not also set up computer network system, also can set out on a journey all or suspect vehicle are inquired about with a notebook computer of being furnished with FDPA terrestrial information processor.
The FDPA terrestrial information processor on vehicle-mounted ADPA on-vehicle information processor and ground communicates with one another and undertaken by radio, and is easy for installation for the volume that makes equipment is done very for a short time, and we prepare to allow and make in the U wave band under the equipment.Frequency of operation is 300～1000MHz, and is adjustable with software.Modulating mode is FSK (Frequency Shift Keying).It is very capable to select for use the FSK modulating mode to resist in disturbing, and operating distance is also very big.The benefit that operating distance is big is to strive for more time for the CWGS system carries out information processing, when particularly trans-regional vehicle being inquired about.
The simplest method is the underground inductive coil device that buries that will pass through at vehicle when vehicle is confirmed, and the modulation AC signal of logical last tens kHz, therefore we also can call transmitting coil to this coil, and a corresponding with it magnetic receiving coil also is housed on vehicle.These two coils are equivalent to the primary and secondary of transformer, when two coils near the time just induce voltage signal in the receiving coil, this signal can trigger ADPA on-vehicle information processor and send confirmation signal to FDPA terrestrial information processor, FDPA terrestrial information processor receives that can pass traffic administration data processing centre (DPC) behind this signal back confirms to handle, and can carry out point-device location to vehicle in this way in electronic chart.
In addition, when vehicle above the inductive coil device through out-of-date, because the ferromagnetism or the eddy current effect of metal, it also can be responded to coil, inductance value is increased or reduce, circuit detects after testing, export a trigger pip to FDPA terrestrial information processor.After FDPA terrestrial information processor is received trigger pip, can send request signal to vehicle on the one hand, can come the flow of calculating vehicle on the other hand according to the quantity of trigger pip.This method can also be used for traffic lights and control automatically when the vehicle attribute is monitored.
Some pilferages and smuggling vehicle generally all can be removed ADPA on-vehicle information processor or destroy, and when vehicle supervision department is inquired about them with the CWGS system, answer can not be arranged.If all cars have all been installed the CWGS system, on electronic chart, will be easy to find the position and the quantity of these illegal vehicles so, although it does not install or has removed ADPS on-vehicle information processor, because when these illegal vehicles from the ground that is embedded with the inductive coil device through out-of-date, FDPA terrestrial information processor is bound to send request signal to this car, does not do to answer as this car and just can think illegal vehicle.
In the gap bridge charge station of passing by on one's way, can also confirm respectively numerous vehicles that pass through with top this inductive coil device localization method.Because tens cars may be arranged on the road of hundreds of rice simultaneously to be inquired about, their data are also handled by traffic administration data processing centre (DPC) simultaneously, if all vehicles of preparing by charge station all are same travel directions, and it is all rich in the bank account for deduction, that just there is no need each car is all needed accurately to confirm, but in the bank account of some car poor the time, or during a locked previous conviction suspect vehicle, in addition, when these vehicle the insides comprised that also a part is the vehicle that travels in the opposite direction on the track, opposite, the accurate affirmation to each car all was necessary so.
In order to realize above function, the present invention has adopted different user to reply random code dislocation technology, and delay line storage assembly isolation technics receives message queue's treatment technology, the condition code answer techniques of calling the roll according to the order of sequence, condition code information tranmission techniques, vehicle be at the road registration technology, ground telefault input inquiring technology, solved in the present communication many signals difficult problem that runs foul of each other, make and travel at a high speed, the vehicle that flow is big can carry out quick Attribute Recognition, becomes possibility; Also have electronic license plate user side encryption technology, M pseudo-random code system encryption technology etc. provide a safe and reliable assurance to vehicle user.
Must be pointed out, when FDPA terrestrial information processor at the same time when numerous ADPA on-vehicle information processors sends request signal, the ADPA on-vehicle information processor of being inquired about can not be answered FDPA terrestrial information processor simultaneously, must each answer all to stagger the regular hour, otherwise can produce signal blockage, make system's cisco unity malfunction.This is unusual critical technical problems in the CWGS system, we have adopted the FA signal anticollision of technology circuit respectively in ADPA on-vehicle information processor and FDPA terrestrial information processor module, with the condition code application technology, solved in the present multichannel communication multiple telecommunication the insoluble signal problem that runs foul of each other.
In the signal sending assembly of ADPA on-vehicle information processor, the anticollision circuit is exactly by ceaselessly changing the output phase of scrambler, answer at one time although guarantee many cars, and the phase place of recall signal can not be just the same, thereby reach the purpose of anticollision.
In the receiving unit of FDPA terrestrial information processor, the anticollision function of anticollision circuit mainly realizes by delay circuit IC1 and IC2.When many cars are inquired about, because the phase place of the coded pulse signal that the ADPA on-vehicle information processor on each car sends can not be the same, always occur sequentially being lined up a sequence in the time of (forming) by many group pulses string, want to allow the decoding scheme in the FDPA terrestrial information processor can normal decoder, ideal situation is: this train pulse string preferably can be as the safety inspection of passenger before boarding, whenever advance one, after safety inspections such as need finish, just can enter second.Delay circuit IC1 in the receiving unit circuit of FDPA terrestrial information processor and IC2 and control circuit just have the function of this pulse train being carried out similar passenger's queuing.
Among the request signal that FDPA terrestrial information processor sends, also specially add condition code in addition, its fundamental purpose also is in order to improve the signal anti-collision capacity.Utilize the condition code technology, can realize point-to-point, with communicating by letter of point-to-multipoint.Be that FDPA terrestrial information processor can be inquired communication to single ADPA on-vehicle information processor, also can inquire communication a plurality of ADPA on-vehicle information processors.Thereby further solved the problem of signal collision.Provide a kind of valid wireless telecommunication method for big flow motor vehicles being carried out Attribute Recognition, monitoring, location, inquiry.
FDPA terrestrial information processor is generally used ether data lan EDSL with communicating by letter of vehicle supervision department or traffic administration data processing centre (DPC), join the 3DDS modulator-demodular unit with telephone wire during short distance, or WLAN (wireless local area network) 802.11, long distance optical cable, it is convenient more that some backcountry may communicate with CDMA or GSM network, and these can compare decision again when making engineering.
Present 3DDS network transmission technology just can transmit 10Mbit/S (two-way, 6 kilometers) with telephone wire.Utilize the 3DDS network transmission technology, do not need services sites is done very big transformation, utilize the existing telephone network, just can realize all services sites and the data center networking of CWGS in this area.
For some the vehicle of GPS is housed, the data of GPS also can be connected with the interface of ADPA on-vehicle information processor by cable connection to be transmitted, by ADPA on-vehicle information processor data are sent to FDPA terrestrial information processor then, by FDPA terrestrial information processor data are sent to data processing centre (DPC) again.
Vehicle household register network management system is a kind of based on electronic license plate IC-card and electronics driving license ADPA on-vehicle information processor, with the internet is communication tool, with the robot calculator is information processing centre, can effectively manage and multiple robotization service various vehicles, cover nationwide large data base management system.
Beneficial effect of the present invention is: distributed radio query method of the present invention and vehicle household register network management system utilize modern electronic technology with computer networking technology vehicle residence management, toll management management, traffic lights control, and the tracking of hit-and-run vehicle and the various services relevant with vehicle of robbed or burgled vehicle to be combined together, realize vehicle management robotization, mobilism, real time implementation, it will bring revolutionary progress to the vehicle residence management of China.
Description of drawings
Fig. 1 is the fundamental diagram of the on-vehicle information processor of distributed query method of the present invention and vehicle household register network management system;
Fig. 2 a is the fundamental diagram of the terrestrial information query processor signal transmitting unit of distributed query method of the present invention and vehicle household register network management system;
Fig. 2 b is the fundamental diagram of the terrestrial information query processor signal receiving unit of distributed query method of the present invention and vehicle household register network management system;
Fig. 3 assembles the fundamental diagram at a time-out highway full automatic charging station for the terrestrial information query processor signal transmitting unit and the signal receiving unit of distributed query method of the present invention and vehicle household register network management system;
The fundamental diagram at highway full automatic charging station when Fig. 4 is installed separately for the terrestrial information query processor signal transmitting unit of distributed query method of the present invention and vehicle household register network management system and signal receiving unit;
Highway full automatic charging station fundamental diagram when Fig. 5 inquires about embodiment for the employing inductor arrangement triggering of distributed query method of the present invention and vehicle household register network management system;
Fig. 6 is the fundamental diagram that the Distributed Detection localization method is used aspect intelligent transportation;
Fig. 7 prevents the signal collision fundamental diagram for the on-vehicle information processor of distributed query method of the present invention and vehicle household register network management system constantly changes the pulse code signal phase place;
Fig. 8 prevents the signal collision fundamental diagram for terrestrial information query processor signal receiving unit adopts delay circuit;
Fig. 9 shifts the delay circuit fundamental diagram for the switching regulator electric charge;
Figure 10 a is that the application characteristic sign indicating number reduces signal collision principle analysis figure in the query communication process;
Figure 10 b constantly changes the condition code parameter to reduce signal collision probability principle analysis figure in the query communication process;
Figure 10 c is condition code parameter change numerous recall signal collision probability principle analysis figure constantly;
Figure 10 d reduces numerous recall signal collision probability principle analysis figure for constantly changing the condition code parameter;
Figure 11 sends and receives for the terrestrial information query processing system and is installed separately the principle analysis figure that increases work efficiency;
Figure 12 prevents to collide the simple fundamental diagram of function for constantly changing condition code parameter raising signal;
Figure 13 is the fundamental diagram that utilizes condition code to improve the signal anti-collision capacity and utilize condition code realization data communication function;
Figure 14 is centralized and distributed ground inductive coil device laying structure figure;
Figure 15 is output of pwm pulse modulating oscillator and detuner output waveform;
The inductive coil schematic diagram of device of Figure 16 for detecting vehicle;
Figure 17 carries out the detection of dynamic fundamental diagram for utilizing the inductive coil device to the traffic main artery vehicle;
Figure 18 improves the fundamental diagram of inductive coil device to vehicle detection sensitivity for adopting mixing beat technology;
Figure 19 overcomes the fundamental diagram of inductive coil device zero frequency drift for adopting Digital Signal Processing;
Figure 20 makes entire circuit can be installed in a vehicle detection inductive coil device fundamental diagram in the assembly for adopting crystal oscillator.
Embodiment
Distributed query method of the present invention and vehicle household register network management system (are called for short CWGS, CHE-LIANG WANG-LUO GUAN-LISYSTEM) mainly (is called for short ADPA by the on-vehicle information processor, AUTOMOBILE DATA PROCESS APPARATUS), the terrestrial information processor (is called for short FDPA, FLOOR DATA PROCESS APPARATUS) and composition such as ground inductive coil device.
Please refer to Fig. 1, ADPA of the present invention is mainly by electronic license plate IC-card read write line, send with the microprocessor with coding, decoding function and high frequency radio signal, receiving circuit, and inductive coil device low frequency signal receiving circuit and signal anticollision circuit, information display, interface circuit etc. are partly formed.
Wherein, content in the scrambler mainly is that the attribute information and being used to of vehicle transmits and the information of security of system, these information parts can store by IC-card input, and other can reside in the inside when communicating with FDPA terrestrial information processor.For traffic administration, the content in the scrambler is equivalent to an electronic license plate and driving license; For charging service system, the content in the scrambler is equivalent to a bank account.In some simple user systems (as parking fee collective system), the available code switch is directly encoded to the content in the scrambler.
In the CWGS of present embodiment system, the content in the scrambler needs by ability operate as normal after the IC-card input, so is furnished with the IC-card read write line among the ADPA, and it can be read and write the content in the IC-card.Therefore, can carry out dynamic coding, realize encryption function the content in the scrambler.In addition, the request signal that receives also will be encoded to the content of scrambler, so that the attribute information of request signal also is added among the content in the scrambler, so that data processing centre (DPC) carries out information processing.Therefore this scrambler is a dynamic coding device.In actual applications, can be integrated into one be in the special IC of kernel with 8051 CPU to most of main circuit of present embodiment ADPA.
The radio receiver circuit of present embodiment ADPA has two signal input parts, and one is used for receiving and grouies busy signal (numerous vehicles are inquired about simultaneously) at a distance, so that carry out the data pre-service; Another is used to receive in-plant ground inductive coil device set point signal, is used for condition code transmission or exchanges data and affirmation.
FDPA comprises signal transmitting unit and signal receiving unit (please consulting Fig. 2 a and 2b respectively).Signal transmitting unit comprises scrambler, high-frequency signal modulator, low frequency signal modulator, inductive coil device, inductive coil device signal deteching circuit, control circuit, interface circuit, and its major function is to produce request signal; Signal receiving unit comprises radio signal receiving circuit, signal anticollision circuit, decoding scheme, data processing circuit, control circuit, interface circuit, and its major function is the signal that receives ADPA, and carries out information processing.
The signal transmitting unit of FDPA of the present invention produces request signal can adopt multiple mode of operation, is that example is described as follows with three kinds of mode of operations:
A kind of is high-frequency signal active inquiry mode (abbreviation Mode A), by the duty decision of analog switch CK1.When analog switch CK1 and modulator 2 connections is the active inquiry mode, and in this case, the signal transmitting unit of FDPA constantly sends request signal to the vehicle that can receive signal.
Second kind is low frequency signal passive query mode (abbreviation Mode B), when analog switch CK1 and modulator 1 connection is the passive query mode, in this case, vehicle is from inductive coil device process the time, at first sensed coil device detects, trigger control circuit then, control circuit allows analog switch CK1 and modulator 1 connect with analog switch CK2 and inductive coil device at once, the inductive coil device of this moment no longer is to detect the inductive coil device, but telefault emitting antenna, request signal sends to ADPA by the inductive coil device, and this mode of operation is applicable to inquires about single car, and regardless of this vehicle whether ADPA has been installed and all can have been inquired about, when not answered by enquiring vehicle, just think illegal vehicle, FDPA can take next step measure, takes pictures or notifies the related personnel to tackle.
The third is low frequency signal active inquiry mode (being called for short pattern C), allow analog switch CK1 and analog switch CK2 and modulator 1 and inductive coil device be switched on (vehicle is not detected) exactly, the inductive coil device is constantly launched the low frequency request signal always.In this case, when vehicle the time, will be inquired about from inductive coil device process.The difference of this mode of operation and second kind of mode of operation (Mode B) is that it can not discern illegal vehicle.
Be appreciated that what mode of operation is above three kinds of inquiry mode of operations using in the flow highway full automatic charging station greatly, use, and can carry out various combination as the case may be.
When needs carry out Attribute Recognition to vehicle, when inquiry, monitoring, radio receiver circuit among the ADPA is started working, after receiving the other side's request signal, decipher through separating to be in harmonious proportion,, start scrambler and carry out a dynamic coding (the decoding output content also participates in coding) then according to decode results, send to FDPA by modulation with the wireless radio transmission mode through encoded binary data repeatedly in the last scrambler.Last FDPA also will send information to data processing centre (DPC) by data transport network.
The principle of work of a plurality of Application Examples of the distributed automobile wireless electricity of the present invention query method is as follows respectively:
Fig. 3, Fig. 4, Fig. 5, Fig. 6 are the fundamental diagrams of distributed query method of the present invention.Among Fig. 3,4,5,6: " 1 " and " 2 " is FDPA terrestrial information processor, " 1 " is the signal transmitting unit of FDPA terrestrial information processor, " 2 " are the signal receiving unit of FDPA terrestrial information processor, " 3 " are ADPA on-vehicle information processor, " 4 " are the inductive coil device, and " 5 " are LED display, and " 6 " are PC computer or information processing centre, " 7 " are video camera, and " 8 " are stop-light.
See also Fig. 3, the present invention's first Application Example is that a cover FDPA has been installed near freeway toll station, and FDPA signal transmitting unit 1 constantly sends request signal to the ADPA3 of vehicular traffic by high frequency antenna.Include information such as the attribute (as name of station, expenses standard etc.) of this charge station and condition code in the request signal.So-called condition code, just be meant a kind of specific coding that is used for the information of intercoursing between FDPA and the ADPA3 and the realization of certain function is programmed, this group coding can also be a lot of special functions of CWGS system definition of the present invention except can coordinating the work between FDPA and the ADPA3.
ADPA3 receives request signal by high frequency antenna during T0, behind decoding and recompile, ADPA3 sends back to the signal receiving unit 2 of FDPA to coded signal by high frequency antenna, contains the attribute and the enciphered message of this vehicle and this charge station in this coded signal.
In addition, in the decode procedure of ADPA3 after receiving request signal, the work of at first doing is to take out condition code to analyze, if condition code is new just answering to FDPA, does not just do answer if condition code remains unchanged.This method guarantees that ADPA3 one receives the request signal of FDPA surely in effective time, but is not all to answer to FDPA at every turn.To prevent to repeat to answer the probability of increase signal collision and the workload that increase FDPA handles invalid information.Therefore, FDPA also constantly changes its condition code when constantly sending request signal, and the change frequency of condition code can be regulated automatically according to the busy extent of system.
In ADPA3, be provided with a special storer, be used for storage attribute code and condition code edited, when vehicle passed through the inlet of highway at every turn, it all can get off the attribute record of expressway access, just can nullify it when vehicle exports through next charge station.The direction and the distance that so just are equivalent to vehicle is walked have also write down, for charge provides foundation.
FDPA can receive a plurality of recall signals from different ADPA3 during T0, because the phase place that each ADPA3 transmits is impossible just the same all in variation constantly.Therefore the probability that bumps of several recall signals can not be evenly distributed on time shaft, and promptly sometimes the chance of collision is bigger, and sometimes Peng Zhuan chance is very little.As long as the chance that exists several signals not collide, FDPA just has an opportunity to decipher a plurality of signals.This can be because be provided with anticollision circuit---the special memory that can store a plurality of pulse trains in FDPA simultaneously to the method for a plurality of signal decodings.
During T1, FDPA deciphers and information processing the recall signal that receives ADPA3.If this charge station is independently, with other information handling system networkings, the data after deciphering so can directly not delivered to computing machine and carry out information processing.Promptly the archives of this vehicle are accessed,, expense is deducted from account according to charging item.If FDPA is and data processing centre's 6 networkings, then the data after the decoding also need be carried out recompile and modulation, to adapt to the transmission of network, by the EDSL data transmission network data are passed to data processing centre (DPC) then, the line data of going forward side by side is handled, the final data processing enter returns to FDPA to data processed result, and for confirmation and confession LED display 5 shows.
During T2, vehicle is through inductive coil device 4, and the testing circuit of FDPA detects the vehicle process, and FDPA sends request signal for separately the vehicle of process by inductive coil device 4.ADPA3 issues FDPA by sky bundle of lines recall signal, and FDPA deciphers and information processing once more to the recall signal that receives ADPA3.To the effect that confirming of current information processing, because several tracks are all arranged on highway usually, and FDPA does not know pretreated the time each vehicle information of carrying out during T1, what this vehicle was walked is that track, and it is very necessary therefore vehicle being carried out the primary information processing again.Because current information process all is to carry out in the FDPA of this locality basically, information processing rate is very fast, also only needs data processed result is passed to data processing centre (DPC) 6 together for internet system, and when returning can.When confirming, the deal with data of vehicle is presented on the LED screen 5 of charge station.
When not answered by enquiring vehicle, just think illegal vehicle, FDPA will start crime prevention system, will further take next step measure, take pictures or will notify the related personnel to tackle by video camera 7.
See also Fig. 4, the present invention's second Application Example and the first Application Example difference shown in Figure 3 are, request signal transmitting element 1 and signal receiving unit 2 among the FDPA are separately two local installations.Therefore under same transmitted power, can further improve the EFFECTIVE RANGE of FDPA, made the information pretreatment time T1 of system longer, so that carry out trans-regional long-range network communication and information processing.
See also Fig. 5, the present invention's the 3rd Application Example and Fig. 3 and first and second Application Example difference shown in Figure 4 are, request signal among the FDPA sends and is undertaken by inductive coil device 4, when vehicle the time through inductive coil device 4, inductive coil device 4 is responded to by vehicle, trigger FDPA then and send request signal (mode of operation B) by inductive coil device 4 to vehicle, perhaps inductive coil device 4 directly sends request signal (mode of operation C) to vehicle.
The advantage that is appreciated that Fig. 5 is that the probability of signal collision is extremely low, and shortcoming is that code check is very low, as will repeatedly inquiring about vehicle, to improve the reliability of data, a lot of inductive coil devices must be installed, and cost omits the height than Fig. 3.
See also Fig. 6, the present invention's the 4th Application Example is to be applied in intelligent traffic light traffic control aspect, cross street.By certain distance a lot of inductive coil devices 4 (the wherein road junction of only drawing among Fig. 6) are installed on every car lane of cross street, each inductive coil device 4 all is an induced signal receiver, also can be a request signal transmitter simultaneously.Vehicle above inductive coil device 4 through out-of-date, inductive coil device 4 will detect the existence of vehicle, when a lot of inductive coil devices 4 received induced signal, the ratio of the summation of these inductive coil device useful area and vehicle useful area (mean value) was exactly the sum of vehicle.Therefore by scanning, be easy to just can count the sum of all vehicles on the road of place, for traffic lights 8 are provided by the firsthand data data that provides automatically to inductive coil device 4.
In addition by inductive coil device 4 to the vehicle of process send request signal, can also identify the attribute of vehicle, be those special cars, as police car, ambulance etc., provide special service, for the transportation network dynamic management provides latest data.
In addition,, can also know how long certain vehicle has stopped on the track, on non-major trunk roads, wait for the vehicle of letting pass for those and also can obtain fair play by the relation of ADPA3 recall signal and condition code variation length.
Be appreciated that these top functions provide necessary means for the realization of transportation modernization, robotization, intellectuality, network management.
In said method and system, it is particularly important that the signal anti-collision that distributed automobile wireless electricity query method of the present invention and vehicle household register network management system are adopted hits condition code technology, electronic license plate encryption technology and ground inductive coil device detection technique, further specifies as follows respectively:
A, signal anti-collision hit the condition code application technology
In the communication technology,, communication system can't be worked in order to prevent numerous signal collisions together, generally all adopt frequency division multiple access or methods such as time division multiple access (TDMA) or CDMA, make each user or monopolize a frequency, or monopolize a period of time, or or monopolize a user code.The cost of this several method is all very high, should not adopt in CWGS of the present invention system.
In the signal sending system of CWGS of the present invention, for fear of signal collision, the pulse code output signal is not taked continuous send mode work, but take the intermittently working method of transmission, and intermittently used frequency and phase place are all changing constantly, guarantee when numerous ADPA is inquired about simultaneously, the signal (train of impulses) that each ADPA answers FDPA, all can not overlap fully, promptly stagger the regular hour, the method of work of the similar time division multiple access (TDMA) of this kind mode, but the places different with time division multiple access (TDMA) are, the phase place that each ADPA sends signal does not have relatively-stationary position, but is changing always, and present embodiment can adopt the method for sawtooth wave frequency sweep to realize.See also Fig. 7.
Concrete grammar is, produce a voltage sawtooth wave a by a saw-toothed wave generator, with this sawtooth wave a a voltage controlled oscillator is modulated again, its output recurrence interval or frequency are constantly changed by the voltage build-up rate of sawtooth wave, that is: produce scanning frequency pulse and export b, come the output of controlled encoder signal with scanning frequency pulse then, code device signal output also divides single group coding pulse signal output d and envelope waveform c and many group codings pulse signal output f and envelope waveform e.
The scrambler of ADPA can have various modes output, as single group coding pulse signal or the output of many group codings pulse signal.Select and so on pattern for use, can consider from aspects such as work efficiency and reliabilities.Single group coding pulse singaling work efficiency is the highest, but will emit the risk of error code.As coming the wind sheltering danger with striding periodic duty (comparing with two cycle decode results), its efficient is on the contrary not as many group codings pulse singaling height.
Being appreciated that in the receiving system of CWGS of the present invention if do not take specific process, the recall signal that requirement can be sent numerous ADPA is simultaneously handled, is a thing that difficulty is very high.
At first decoding system is that a spike train (coded pulse signal) is handled (decoding), rather than individual pulse is handled.Therefore as long as sneak into an additional pulse, will become another group code (error code) probably a spike train the inside.In order to reduce the bit error rate, generally all to the decode results of two group pulse strings (going up next time) be compared, as the result, just praise, there is not error code.Different as the result, just think error code, must be again compare with the decode results and the preceding two times result of (for the third time) train of impulses next time, by that analogy, till praising.So, certainly will reduce the conversion speed of decoding system.
When a plurality of ADPA to a FDPA when sending recall signal, if the decoding system of FDPA is too slow to a plurality of Signal Processing speed, certain signal appears possibly by drain process.But just on average, the decoding system of FDPA should be enough to a plurality of Signal Processing speed, and just sometime, the working load of decoding system has exceeded its processing power.For this situation, we have adopted a kind of FA signal batch treatment technology.
Fig. 8 is used for preventing the electrical schematic diagram that a plurality of signals run foul of each other among the FDPA of the distributed automobile wireless of the present invention electricity query method and vehicle household register network management system, and its anticollision function mainly realizes by delay circuit IC1 and IC2.
When many cars are inquired about, because carrying out anticollision when sending signal, handled the ADPA on each car, make the phase place of every group coding pulse signal of transmission can not be the same, relative phase between them constantly changes, therefore always when many group codings pulse signal occurring and sequentially lined up a sequence, want to allow the back decoding scheme can normal decoder, ideal situation is: this sequential coding pulse signal preferably can be as the safety inspection of passenger before boarding, whenever advance one, after safety inspections such as need finish, just can enter second.Anticollision circuit shown in Figure 8 just has the function of this coded pulse signal sequence being carried out similar passenger's queuing.
Being provided with three cars is inquired about simultaneously, the coded pulse signal that three cars send out is formed a sequence in time, the time span of every group coding pulse signal is T, three group coding pulse signals are defined as T1, T2, T3 respectively, can be designated as this sequence simply: Tn=T1+T2+T3, in the time of sequence Tn process anticollision circuit, be divided into two-way.The input end of the straight-through back of the normal open contact decoding scheme of one tunnel process analog switch K03, the back decoding scheme is at first deciphered T1.
Another road signal enters delay circuit IC1 and IC2 through the normal open contact of analog switch K01, if the delay time of IC1 and IC2 delay circuit is respectively 3T and 1T, so through 4T after the time IC2 begin to have signal output, a road of output signal triggers rest-set flip-flop IC4 again behind AND circuit IC3, make the rest-set flip-flop counter-rotating put 1, make the 1-3 contact of analog switch K03 connect the tripping of 1-2 contact, the also tripping of 1-2 contact of analog switch K01, the 1-3 contact of analog switch K02 is connected.
In this state, the input signal of anticollision circuit is disconnected, the T1 signal is sent to the input end of back decoding scheme once more, the T1 signal is deciphered once more, T2, the T3 signal circulates in delay circuit IC1, be equivalent to T2, the T3 signal has been stored by IC1, and by IC2 once and again rearwards decoding scheme output is provided, the decoding scheme of back just can be leisurely and carefree like this to T2, T3 has deciphered respectively, to the last behind decoded finishing of signal, CPU just to rest-set flip-flop IC 4 output control signals (putting 0), allows it discharge, and the anticollision circuit is got back to original state again.
The delay time of delay circuit IC1 is long more, and the signal number of storage is just many more, and promptly to handle the ability of a plurality of signals simultaneously just strong more in system.When the group number of processing signals to be decoded is many especially, when the decoding treatment circuit of back was too busy to do it, available a plurality of anticollision circuit shown in Figure 8 carried out parallel connection, and code translator adopts a plurality of parallel connections too.Need this moment to add a logic switch, signal is carried out reasonable distribution at input end.
Common delay circuit generally all is to be formed by very many inductance and electric capacity connection in series-parallel, and desirable delay circuit is distributed, that is: inductance and electric capacity all are made up of distributed inductance and distributed capacitance, so people are referred to as delay line to them.The common delay line circuit delay time is generally all very short, can't be applied in the anticollision circuit shown in Figure 8, therefore, the delay circuit that anticollision circuit of the present invention shown in Figure 8 uses is that the switching regulator electric charge shifts delay circuit, this switching regulator electric charge shifts delay circuit and generally is made up of active device, Fig. 9 is exactly the principle of work that the switching regulator electric charge shifts delay circuit IC1 and IC2, is appreciated that 8 anticollision circuit shown in the figure can all be integrated among the integrated circuit when producing in batches.
K1 is a sampling switch among Fig. 9, and K1 and K2 take turns conducting.When K1 connected, input signal was to capacitor C 1 charging, and C1 is full of electricity back K1 and disconnects.K2 connects then, and C1 charges to C2.After C2 was full of electricity, K2 disconnected, and K3 connects thereafter, and C2 charges to C3 again.By that analogy, last Kn connects, and Cn is recharged, and output signal is exported from the Cn two ends.Because the Cn back does not have switch again, thus the change in voltage at Cn two ends basic consistent with the envelope of input signal (supposing to be far smaller than sample time the width of input pulse), but it is a lot of to have been delayed time on phase place.The delay time size is decided by the joint number of the frequency of operation of K1, K2 and switch, electric capacity.Because signal is by switch handing down one by one, trembles equally the spitting image of chain and works, and trembles the formula chronotron so be also referred to as chain.
K switch 1 in the side circuit, K2, Kn and capacitor C 1, C2, Cn are active devices, can replace with metal-oxide-semiconductor as K switch n, capacitor C n is a charge accumulator, except that electric capacity can be used as charge accumulator, also belongs to a kind of of charge accumulator as the CCD device.Therefore, delay circuit shown in Figure 9 is can not produce decay to signal.Because the parameter of coded pulse is known, therefore a pulse shaping circuit can also be installed at the last output terminal of delay circuit, signal is delayed time through how many times can not be out of shape.
In addition, among the request signal that FDPA sends, present embodiment also specially adds condition code, and one of its purpose is in order to improve the signal anti-collision capacity, two be in order to reduce the processing of FDPA, to increase work efficiency to invalid information, and increase other function.
In order to reduce the probability of signal collision, in the decode procedure of ADPA on-vehicle information processor after receiving request signal, the work of at first doing is to take out condition code to analyze, if condition code is new just answering to FDPA, does not just answer if condition code remains unchanged.This method has guaranteed an ADPA on-vehicle information processor request signal of receiving FDPA terrestrial information processor surely in effective time, but not all to answer to FDPA at every turn, to prevent to repeat to answer the probability of increase signal collision and the workload that increase FDPA handles invalid information.
Seeing also Figure 10-a to Figure 10-d comes further labor condition code to reduce the principle of work of signal collision, " 1 " among Figure 10-a, Figure 10-b, Figure 10-c, Figure 10-d and " 2 " are FDPA, " 1 " is the signal transmitting unit of FDPA, and " 2 " are the signal receiving unit of FDPA.
Figure 10-a great circle center is the position of the installation of FDPA, i.e. charge station.Great circle is represented the efficient working range (signal area coverage) of FDPA.When vehicle 1 just enters the efficient working range of FDPA terrestrial information processor, promptly begin to receive request signal, and send recall signal to FDPA.This moment, FDPA use characteristic sign indicating number 1, communicating because of having only vehicle 1, so the signal collision problem can not take place.
Among Figure 10-b, vehicle 1,2,3,4 can be received the request signal of FDPA, and hypothesis is when vehicle 1 has just entered small circle and vehicle 4 and just entered great circle, and FDPA begins to change condition code, becomes condition code 2 by condition code 1.This moment, vehicle 1,2,3,4 all can be answered to FDPA, and before this, vehicle 1,2,3 can both be received the request signal of FDPA, but did not answer.
Vehicle 1,2,3,4,5,6,7,8 can be received the request signal of FDPA among Figure 10-c, and hypothesis is when vehicle 1 has just entered charge station and vehicle 7 and just entered great circle, and FDPA begins to change condition code again, becomes condition code 3 by condition code 2.This moment, vehicle 1,2,3,4,5,6,7 all can be answered to FDPA, and vehicle 1,2,3,4,5,6 can both be received the request signal of FDPA before, but did not answer.
Vehicle 1,2,3,4,5,6,7,8,9,10 can be received the request signal of FDPA among Figure 10-d, and hypothesis is when vehicle 4 has just entered charge station and vehicle 10 and just entered great circle, and FDPA begins to change condition code again, becomes condition code 4 by condition code 3.This moment, vehicle 1,2,3,4,5,6,7,8,9,10 all can be answered to FDPA, and vehicle 1,2,3,4,5,6,7,8,9 can both be received the request signal of FDPA before, but did not answer.
By above analysis as seen, the bump place of probability maximum of signal is in the moment of condition code change, and it is the same substantially with the situation that does not add condition code to carve the probability that signal bumps at this moment, and other moment, and the signal probability that bumps is very little.Last surface analysis is a kind of very opposite extreme situations, if but our phase change when condition code is changed once, situation will be greatly for a change.
Suppose vehicle 1 in Figure 10-b, vehicle 2, vehicle 3 is not to pass through great circle simultaneously, and three cars are processes according to priority, and when second car is inquired about by FDPA through great circle, FDPA does not have the transform characteristics sign indicating number, so, first car can not answered, and have only second car to answer this moment, because it is inquired about for the first time.Equally, when the 3rd car inquired about, first, second car was not answered yet, and had only the 3rd car to answer.By that analogy, always have only last car to answer.In this case, no matter what cars are arranged, the problem of signal collision can not take place in great circle.
When FDPA began to change the condition code inquiry, all vehicles in great circle all will be answered, and at this moment must consider the problem of signal collision.In order fundamentally to solve the problem of signal collision, can be on the changing basis of condition code, also taked a kind of very effective signal anticollision disposal route, be exactly in ADPA of the present invention, to increase a condition code identification prediction disposal system, and the attribute of the number-plate number is also used as condition code.
Its principle is: after vehicle was inquired about for the first time and answered, and if then FDPA inquires about with new condition code again, this moment, this vehicle was not answered, and just answered when need treat some.Certain like this probability that reduces signal collision very effectively.Method is: when vehicle need not be answered, the content in the ADPA condition code storer also will change with the content synchronization of condition code generator among the FDPA.But be not time time all will change, or this car just can't be inquired about by secondary.The content synchronization of pressing condition code generator among which type of rule and the FDPA for the content in the ADPA condition code storer changes, and this can be considered many-sided requirements such as cost, efficient, reliabilities from the CWGS total system under concrete condition.Simple embodiment is exactly, and when not needing to answer feature code sequence added 1, when needing to answer feature code sequence subtracted 1 again.
The attribute of the number-plate number also can use as condition code, as police car, officer's car, bus, transport vehicle, private car, local car, nonlocal car etc., in last car plate, all send out according to certain rules number, also have last digit and single even numbers of the number-plate number, these can use as condition code.FDPA can inquire about in to vehicle query in classification, as: earlier inquiry number-plate number last digit is the vehicle of odd or even number, and the probability of signal collision can be reduced to 1/5 with simultaneously all vehicles being inquired about to compare so; As inquiring about by the size order of number-plate number last digit, the probability of signal collision can be reduced to 1/10 with simultaneously all vehicles being inquired about to compare.
Condition code anticollision technology is inoperative in inductive coil device query script, because there is not the signal collision problem in it.But in the CWGS system, can not all adopt the mode of inductive coil device inquiry, because under inductive coil device inquiry mode, carrier frequency is used very lowly, generally have only tens kHz, therefore code check is also very low, it is big to be used for vehicle flow, the use of must working in coordination of the occasion that information exchange requirement is very fast, several different methods.
From Figure 10-d, it can also be seen that, the signal of FDPA is sent and receiving unit lumps together efficient and can reduce.Because the vehicle that those data are processed also will be inquired about once more.If adopt the method for work of Fig. 4, the request signal of FDPA is sent part partly separate two local installations with information processing, so not only can increase operating distance, can also reduce the workload that FDPA handles garbage.Principle as shown in figure 11, among Figure 11,1 is the FDPA signal transmitting unit, 2 is the FDPA signal receiving unit.
See also Figure 11, signal transmitting unit 1 sends part for request signal, and signal receiving unit 2 receives and the information processing part for signal, and the position of signal receiving unit 1 is exactly the position of charge station.Roundlet is signal transmitting unit 1 a request signal coverage, and great circle receives 2 coverage for the signal receiving unit signal.Because receiving end can be selected the stronger directional antenna of directivity for use, as Yagi antenna, so its coverage is big more a lot of than transmitting terminal.With Figure 10-a relatively, its operating distance has increased more than one times, and vehicle be carried out after the data processing can be again by inquiry with carry out data processing once more.
Be appreciated that condition code also has a lot of special purposes, one of them can discern the vehicle of making a return journey with it, as train number, represents the train direction of making a return journey with single even numbers.At the toll on the road and bridge station, FDPA just is easy to the vehicle of making a return journey is inquired about respectively like this.In the time will inquiring about to the vehicle that comes, though rightabout vehicle also can be received request signal, because of condition code to not going up, so those rightabout vehicles just can not answered.Wherein two, vehicle is classified, in the time only need inquiring about, have only the vehicle of those condition codes to going up to some vehicle, just can answer.Also have,, can calculate time of parking or the like according to the length of receiving signal characteristic sign indicating number sequence.
Figure 12 is that condition code is at two simple principle of work synoptic diagram using aspect the anti-signal collision." 10 " are code translators among Figure 12, be used for the coded signal (request signal) of FDPA scrambler output is deciphered, in coded signal, include information such as the attribute (as name of station, expenses standard etc.) of FDPA terrestrial information processor place charge station and condition code; " 11 " are the monostable time delay circuit, and its effect is the data write control signal that a time-delay certain hour is provided to storer; " 12 " and " 13 " are storer, and W is the write signal control end; " 14 " " 15 ", " 16 ", " 17 " are NOR gate circuit, when input signal numerical value is identical, are output as 0 (not output of expression here), when input signal numerical value is inequality, are output as 1 (expression has output); " 18 " are AND circuit, have only all inputs to be at 1 o'clock, and its output just is 1; " 19 " are OR circuit, and any one the tunnel is input as 1, and its output also is 1; " 20 " are scrambler, the scrambler in the ADPA on-vehicle information processor just, and when OR circuit " 20 " had signal output to be added to its E end (Enable Pin), scrambler was started working, and signal output is arranged.Still remark additionally with the embodiment of vehicle below through highway.
When vehicle entered the expressway access, FDPA inquired about ADPA by ground inductive coil device, and by request signal the condition code that has attribute information was sent to ADPA together with out of Memory.After the decoder for decoding in ADPA, condition code is just by the memory stores among the ADPA, and resides in the ADPA system, so that be used for controlling the working method of ADPA, realizes various difference in functionalitys, and all the other information are directly given scrambler and carried out dynamic coding.
Among Figure 12, code translator " 10 " is output as and latchs output, and its figure place is arbitrarily, perhaps can all can regard a certain position among the figure as a sequence, only lifts 14 here and describes, and is respectively D1 to D14.D1 is a condition code to D5, and D6 is the out of Memory coding to D14.D1 represents the travel directions of vehicle, and its data deposit in during by the FDPA terrestrial information processor inquiry at expressway access place, and data write by the C1 output signal and control, and as representing with 0, represents back with 1.After the value of D1 was decided, through in the charge station, ADPA only answered the FDPA request signal that conforms to own direction vehicle when running on expressway.
Its principle is, when ADPA on-vehicle information processor receives that request signal is after decoding, the numerical value of the signal (numerical value) of D1 output and storer " 12 " storage all is sent to NOR gate circuit " 14 " and carries out logical operation, if two numerical value are identical, and NOR gate circuit " 14 " no-output; When if two numerical value are inequality, NOR gate circuit " 14 " just has output.The output of NOR gate circuit " 14 " also will be delivered to next AND circuit " 18 " and carry out logical operation.If other condition also satisfies, AND circuit " 18 " just has output, passes through the E end (Enable Pin) that OR circuit " 19 " outputs to scrambler " 20 " again, and scrambler " 20 " is just started working, then outupt coded signal.
D2 is the highest bit code of authority in the condition code, as long as D2 has output, scrambler " 20 " is just started working.This situation can be used for, as inductive coil device fixed point query, or other mandatory inquiries, and the situation of the attribute of the number-plate number as the condition code use.
D3, D4, D5 is one group of condition code according to the continuous variation of certain rule, the every inquiry of FDPA once, D3, D4, the value of D5 output will be delivered to NOR gate circuit " 15 ", " 16 ", " 17 " compare once with the numerical value of the middle storage of storer " 13 ", if two identical just not outputs of value, have only two values that output is not just arranged simultaneously, output signal also will be given AND circuit " 18 " and be carried out logical operation, deliver to the E end (Enable Pin) of scrambler " 20 " then again through OR circuit " 19 ", scrambler " 20 " is started working, and this process is equivalent to bit comparison.
The value of D3, D4, D5 output when the numerical value of storage is exactly last the inquiry in the storer " 13 ".How is it stored into? it is that effect by the monostable time delay circuit is the data stored in memory.When code translator " 10 " had the signal input, the monostable time delay circuit was started working, but was not horse back output pulse signal (write signal), but will after after a while signal output be arranged.Those NOR gate circuits utilize this section delay time to carry out work.When treating that the monostable time delay circuit has signal output, those NOR gate circuits have been worked and have been finished, and the value of D3, D4, D5 output just begins to be deposited in the storer " 13 " at this moment, waits until the usefulness of making comparisons next time.
The place that Figure 13 is different with Figure 12 is that the part at storer " 12 " has increased the information processing function, and the existing memory function of message handler " 22 " has the information processing function again.It has three output ports: inquiry (answer) control port at the same level, superfine inquiry (answer) control port, a DATE data-signal output port.And two input ports, C1-m (C1, C2, C3...Cm) is used for the control signal transmission, and D1-m (D1, D2, D3...Dm) is used for data signal transmission.Therefore the function of message handler " 22 " mainly is, for setting up a communication port between a plurality of FDPA and the ADPA, allows and intercourses information and data between FDPA and the ADPA, makes and carries out collaborative work between all FDPA and the ADPA.Because the effect of DATE data channel, make to communicate to become between ADPA and the FDPA and be easy to, the vehicle of GPS GPS is housed more like this, also can allow the data of GPS be connected with the interface of ADPA by cable connection, by ADPA data are sent to FDPA again, by FDPA data are sent to data processing centre (DPC) then.
The message handler here " 22 " is that circuit is made some functional modules, and each functional module can be controlled by a decoder output, just can realize various function outputs by the input that changes code translator coding (instruction).Therefore C1-m is exactly so-called instruction, and D1-m does not cry instruction and make data be because it is a variable, as following vehicle accession designation number.
Therefore Figure 13 has increased many functions than Figure 12.As: 1) give the vehicle accession designation number, inquire about by numbering or by the attribute of the number-plate number; 2) vehicle is inquired about in batches; 3) information data of storing high-speed highway porch need not be networked and also can be charged automatically; 4) give special processing to special car; 5) the violation vehicle is write down and traces; 6) vehicle anti-theft; 7) also have a lot of functions, can produce by continuous defined feature sign indicating number.
1) when vehicle enters the expressway access, FDPA carries out fixed point query by the inductive coil device to ADPA, and by request signal the vehicle accession designation number is sent to ADPA together with other information.After the decoder for decoding in ADPA, the condition code that has vehicle accession designation number information just is stored among the message handler " 22 " of ADPA.When treating that service area that vehicle enters next charge station is inquired about, ADPA on the vehicle can send to the information of vehicle accession designation number the FDPA of our station, the FDPA of our station when inquiring about this vehicle next time again, in numerous vehicles, just have only this vehicle to answer, thus the situation of avoiding a lot of vehicles to answer simultaneously.This method is equivalent to user code of specializing in communication usefulness of on-vehicle information processor A DPA input, and terrestrial information processor FDPA can carry out point-to-point or point-to-multipoint delivery by user code.
Because the position of condition code is long limited, the vehicle accession designation number just can not be oversize, as long as can carry out a lot of vehicles just can achieve the goal effectively in batches.Coverage as FDPA is 1000 meters, and spacing is 50 meters, and three tracks then have 60 cars and need provide service at service area, and accession designation number just can be avoided the problem of signal collision effectively greater than 60 (being 6bit) so.Certainly to consider also that part is overtaken other vehicles and the situation of a plurality of inlets.
2) in Figure 12, when FDPA transform characteristics sign indicating number was inquired about, all vehicles all can be answered, and produce signal collision possibly.If when allowing FDPA transform characteristics sign indicating number inquire about, the condition code that ADPA preserves also and then changes, ADPA just can not answer the inquiry of FDPA more so.If some vehicles that allow of having a mind to are not answered in this inquiry, and just answer in another time inquiry, this also can reduce the probability of signal collision.Realize this function, only need change the duty of monostable circuit among Figure 12 rhythmically, allow its effective (time-delay) or invalid (not delaying time) get final product.The circuit of Figure 13 equally also is easy to realize this function.
Should be that multiple query pattern mixes use in the practical application, each car can both be queried to repeatedly, guarantee that data are absolutely correct.Usually at a distance the time, can adopt the mode of continuous change condition code inquiry, select the mode of inquiry in batches during middle distance for use, with the mode of inquiring about by numbering, select mode in the time of closely for use by the numbering inquiry, select for use the mode of inductive coil device fixed point query to work at last.
3) if all expressway accesses and outlet are all networked, the information at place, expressway access and data are fully can be by internet transmission to data processing centre (DPC), by its concentrated processing so.But little place in some networking that also are not able to do in time, if can be in the ADPA of vehicle the information at expressway access place and data storage, by the time the FDPA swap data of standing therewith again by inquiry mode in the time of the outlet of next charge station can be realized the function of charge automatically equally.Be exactly that all websites have all used the internet, also have and have a power failure and network when breaking down, adopt this moment top this method just can proceed automatic fee collection.
4) some special cars, as police car, emergency tender, and foreign guest fleet, the place through traffic lights control needs prior-release.This moment, the traffic police can import FDPA to data by hand-held computer, and by the mode of inquiry some related datas was deposited among the ADPA of this car, allowed FDPA on the way give special treatment.Perhaps allow the police car that has special data lead group of people in front, utilize superfine inquiry (answer) function of ADPA on its car, just can allow FDPA on the way give the green light to by intercoursing information.
5) such as at the parting of the ways, often there is vehicle to hit red light.If when red signal occurs, forbid all installing on the passage inductive coil device at those, and send to the vehicle that passes through and to have the signal of information in violation of rules and regulations, so at the violation vehicle through out-of-date, information just can write among the ADPA on-vehicle information processor system of vehicle in violation of rules and regulations by inquiry mode.Like this, no matter in violation of rules and regulations vehicle is gone to the there, all can be queried to, unless this information is in violation of rules and regulations nullified in its acceptance of punishment.
6) undergroundly in the passageway of parking lot fee collection management place inlet and outlet all be embedded with an inductive coil device, be used for vehicle is advanced, go out to detect, while is also sent radio signal as the low frequency signal transmitting antenna of FDPA to vehicle, when vehicle enters parking lot fee collection management place inlet, ADPA is at first sent low frequency radio request signal by FDPA by the inductive coil device and inquires about, and the prompting vehicle drivers will be inputed password in the ADPA of oneself, pass through mutual communication, making in the storer of FDPA and ADPA all can resident this password, when vehicle leaves the parking lot, vehicle drivers also will be inputed password, if password is imported rightly, vehicle is let pass, and nullify this password, if password is imported not rightly, just no thoroughfare for vehicles in the exit in parking lot, if this vehicle is to take illegal means to leave the parking lot, this password is as a part of condition code, make this vehicle no matter anywhere, all inquired about and report to the police, trace for vehicle and provide convenience by all FDPA.
Figure 12 and Figure 13 just are used for the simple principle that the simple declaration condition code is used in CWGS of the present invention system.The all functions of Figure 12 and Figure 13 simple principle figure and reception transtation mission circuit all can be realized with a special chip that is embedded with 8051 microprocessor functions in the practical application.
Wireless communication and data processing unit between APDA and the ground FDPA, the integrated circuit that can select for use functions such as can compiling frequency, reception, transmission and digital signal processing and encoding and decoding all to be integrated in one.The specific requirement of an embodiment is:
◆ built-in 8051 compatible microprocessors, and the above flash memory able to programme of 32kB
◆ hardware DES (Data Encryption Standard) encryption/decryption functionality
◆ three 10bit-ADC input ports
◆ three data delivery outlets
◆ frequency program is adjustable, and 300 to 1000MHz
◆ output power is adjustable, and-20 to 10dBm
◆ the PLL AFT, do not have the element of adjustment
◆ FSK (Frequency Shift Keying) modulation rate is greater than 76.8 kbit/S
◆ the control of AGC (Automatic Gain Control) automatic gain
◆ coding and decoding are carried out with hardware
◆ have sleep and arousal function
◆ sensitivity is less than-107dBm
◆ antijamming capability strong (being mainly automotive ignition disturbs)
◆ operating distance is not greater than 600 meters (adding power amplification)
◆ liquid crystal or LED show
◆ band clock and calendar
◆ 3 volts of operating voltage
◆ working current, less than 20mA (accepting state)
◆ meet FCC and CCEE standard
Three input ports, one is used for the keyboard input, and another is used for inductive coil device decoded signal input (decoded signal of hf channel is imported away the inner passage), also has the input that reads and writes data that is used for IC-card.Three delivery outlets, one is used for liquid crystal or LED demonstration, and another is used for the IC-card read write line, also has one to be used for decoding output.
In automatic charge station, no matter what passages are arranged, all only with a FDPA transmitting-receiving decoding system, so the speed that requirement is handled data is very high, and technical preparation is carried out packet and handled with a plurality of code translator parallel runnings.Also available DSP (Digital Signal Processing) carries out data processing.DSP is a multiple bus architecture, can carry out packet transaction to data, so its computing velocity and work efficiency are very high, are the hundreds of times of common CP U.
B, ground inductive coil device detection technique
Utilize inductance as the parametric device in the concussion loop, it can realize many functions.For example: can be used as emitting antenna and send signal to radio receiver; Can be used as receiving antenna is used for receiving radio signals; Can also detect metal (vehicle) as inductor.These functions all can be can use in CWGS of the present invention system.
In charge station, available high frequency radio signal transmit-receive technology did not carry out telecommunication before vehicle also arrived, so that there is time enough to carry out the information pre-service, when vehicle arrives our station by the time, accurately handle with inductive coil device detection technique again.
To confirm vehicle, the simplest method is the underground inductive coil device that buries that will pass through at vehicle, and the modulation AC signal of logical last tens kHz or have the request signal of information, we are referred to as the radio signal transmitting coil to this coil, and a magnetic antenna receiving coil also is housed on vehicle.These two coils are equivalent to the primary and secondary of transformer, when two coils near the time just induce voltage signal in the receiving coil, this signal can trigger ADPA on-vehicle information processor and send confirmation signal to FDPA terrestrial information processor, FDPA terrestrial information processor receives that can pass information back traffic administration data processing centre (DPC) by network behind this signal handles, and can carry out point-device location to vehicle in this way in electronic chart.
As emitting antenna, frequency of operation can not be very high with the inductive coil device.Because when the movement velocity of vehicle is very high, above the inductive coil device, process the time, in the regular hour, can both stably receive signal in order to guarantee vehicle, the area of inductive coil device just can not be done very for a short time, so its inductance value will be very big.Figure 14 is the plane structure chart that ground inductive coil device is laid.Generally can divide two kinds of basic structures, a is centralized, and b is distributed.When the speed of wishing vehicle very fast, and require received signal at vehicle through very stable in the effective time of coil, select for use distributed meeting more excellent performance to be arranged than centralized.Slower when car speed, and the area of coil does not need can select for use centralized when very big.
As car speed per hour is 60 kilometers speed process, then p.s. vehicle movement distance be 16 meters.When the area of inductive coil device was 4 * 4 meter 2, the time that ADPA on-vehicle information processor can be stablized received signal just had 0.25 second.As repeat to inquire about three times, then each query time is 0.08 second (80 milliseconds), and this is not also taken into account dutycycle, is 0.5 if get dutycycle, and then effective query time is 0.04 second (40 milliseconds).
Because the inductive coil device inductance value of top two kinds of structures is generally all very big, once having enclosed tens microhenrys, ten circles just have several milihenries.Consider that from power match and working stability aspect frequency of operation can not be very high (the highest can only for about 50kHz), frequency of operation is high more, and output power is just more little, and loss also increases, and stability also can variation.And consider from bit rate connection, wish that again frequency of operation is high more good more.
Simple in order to work, the output of scrambler generally all is PWM (pulse-length modulation) output, represents " 1 " with broad pulse that is:, and burst pulse is represented " 0 ".Can economize when transmitting like this and desynchronize and clock signal, but code check also can decrease.Figure 15 is a pwm pulse modulation output waveform, among the figure: " a " is the PWM widened pulse, and " b " is the oscillator modulates output waveform, and " c " is the demodulation output waveform, " d " is output waveform after the shaping, just can be determined the code check of inductive coil device enquiry circuit by Figure 15.
As can be seen from Figure 15, minimumly want 2.5 oscillation period, carrier wave could transmit the information of a pulse signal reliably.If the broad pulse width just in time is the twice of narrow pulse width, transmit 12.5 oscillation period of the minimum needs of information of 2bit (1 and 0) so.When oscillation frequency is elected 40kHz as, T=25uS, 2bit information then needs 312.5uS.Obtain 40 milliseconds thus and can carry 256bit information (comprising synchronous head) at most, code check is 6400bit/S.When oscillation frequency was elected 20kHz as, 40 milliseconds can be carried 128bit information at most, and code check is 3200bit/S.This Data Base instinct satisfies the information of transmission feature sign indicating number and local charge station attribute.So, can also can only send the request signal that triggers the work of ADPA high frequency transmission circuit with the direct request signal that sends the breath of taking a message of inductive coil device with the inductive coil device.Very long when the needs code length, think when transmission code rate is not high enough that can select orthogonal modulation mode (QAM) for use, code check can improve tens times.
Sending request signal with the inductive coil device is point-to-point communicating, and does not need to consider the signal collision problem.Another function of inductive coil device is to be used for vehicle is detected, its principle of work such as Figure 16, and among the figure: " a " is the output waveform of LC oscillatory circuit, and " b " is the frequency response curve of output of frequency discriminator, and " c " is the output waveform of shaping after amplifying.
When vehicle above the inductive coil device through out-of-date, it can be responded to coil, make the inductance value increase or reduce (generally being to increase), thereby oscillation frequency is reduced or rising, after frequency discriminator frequency discrimination, filtering, amplification, shaping, be an exportable trigger pulse, trigger FDPA terrestrial information processor and send request signal by inductive coil device or high frequency antenna.
On the busier road surface of traffic, as the cross street, can be at a lot of inductive coil devices (assembly) of underground arrangement, and the duty of each inductive coil device (assembly) scanned sampling, just can know the quantity of vehicle on travelling constantly accurately, so that carry out traffic lights control.See Fig. 6 and Figure 17, among Fig. 6 and Figure 17, " 4 " are the inductive coil device assembly.
Inductive coil device among Fig. 6 and Figure 17 and the inductive coil device among Figure 14 structurally have very big difference.Inductive coil device among Figure 17 is structurally little a lot of than the inductive coil device in 14, can be also littler than a noggin, even may diminish to a little finger generally big.But when the inductive coil device was too little, detection sensitivity can reduce greatly.Can select the highly sensitive testing circuit of Figure 18 this moment for use.
Here particularly point out, being used for the traffic main artery vehicle detection or carrying out the ground inductive coil device of traffic lights control usefulness can be around a skeleton made from insulating material, coil magnetic loop direction perpendicular to the ground must be open, and coil inside can be installed permeability magnetic material also can not install permeability magnetic material.The major part of whole detection device, be to be installed on the traffic main artery according to certain being spaced by a lot of inductive coil devices, and the output signal of each inductive coil device all will be connected with sweep circuit by an analog switch, and the output signal of sweep circuit is connected with data processing circuit again.
Figure 18 is a kind of highly sensitive inductive coil testing circuit, and two oscillation circuits are arranged among Figure 18, and the frequency of operation of two oscillation circuits is identical at ordinary times, and the frequency that produces beat through latter two oscillation frequency of mixing is zero (not output).When vehicle above the inductive coil device through out-of-date, the inductance value of inductive coil device can increase or reduce, thereby oscillation frequency is reduced or rising, the frequency that produces beat through latter two oscillation frequency of mixing is non-vanishing, the inductance value of inductive coil device changes more greatly, and the frequency of Beat Signal is just high more.Therefore the detection sensitivity of Figure 18 sort circuit is very high, even cause inductive coil device inductance value a bit very small variation is arranged, per mille, even ten thousand/, it can detect and obtain.
But Figure 18 sort circuit also has a problem, is exactly the zero frequency drift.When not having the vehicle process, because two oscillation circuit components and parts parameters affected by environment change when inconsistent, can cause two frequency change inconsistent, this situation is easy to produce false alarm.In order to improve sensitivity, the inductance of two oscillation circuits can not be near being installed together, and this situation more is easy to generate the zero frequency drift.
In order to solve the problem that the zero frequency drift is easy to generate false alarm, preferably take digital signal processing method shown in Figure 19.First half principle of work and Figure 18 of Figure 19 are identical, and difference has just increased the latter half digital signal processing circuit.Digital signal processing circuit mainly is made up of frequency counter, data memory input, zero-error data-carrier store, comparer, output data storer, frequency tuning circuit etc.When not having vehicle through out-of-date, frequency mixer is output as zero, and frequency counter output also is zero, or very a little bit smaller drift data output is arranged, and this drift data is called " zero frequency error signal " and is stored among the zero-error data-carrier store; As vehicle through out-of-date, frequency mixer output is non-vanishing, frequency counter output is also non-vanishing, these data are called " frequency error signal " and are stored among the data memory input, and then, comparer wants the data in the data memory input and the data of zero-error data-carrier store to compare, if comparative result is non-vanishing, expression has vehicle to pass through, and promptly the result is stored among the output data storer, for the usefulness of data output.
When not having vehicle through out-of-date, in order to reduce the numerical value of zero frequency error signal, also to adjust at ordinary times the numerical value of zero-error data-carrier store, method of adjustment is undertaken by frequency tuning circuit, the frequency regulation is proportional to the output of zero-error signal, it is equivalent to a degeneration factor, no matter whether frequency mixer and frequency counter have error signal output, comparer always will compare by data in the data memory input and the data in the zero-error data-carrier store, and the minimum value of error signal is stored among the zero-error data-carrier store, periodically zero frequency error signal numerical value is constantly detected and upgrade, and constantly oscillation frequency is adjusted by automatic frequency tuning circuit, made zero frequency error signal numerical value be reduced to minimum value.
When vehicle has frequency error signal output through the inductive coil device, comparator circuit always compares with the numerical value of frequency error output signal and up-to-date zero frequency error signal numerical value, and to two relatively numerical value leave certain nargin, therefore, the sensitivity of this inductive coil testing circuit of Figure 19 is very high, and false alarm also can be controlled very lowly.
In actual applications, L1 among Figure 18, Figure 19 and L2 can not be installed among the same module, the signal of two oscillatory circuits does not play the difference effect, then then detection signal sensitivity will very low or circuit cisco unity malfunction for detection signal, in order to overcome this shortcoming, can the L2 oscillation circuit among Figure 18, Figure 19 be improved, L1 or L2 are changed into a crystal oscillator, as shown in figure 20.
In Figure 20, be used to detect the ground inductive coil device that vehicle exists, can form an oscillation circuit with a crystal oscillator, the frequency of operation of this oscillation circuit as reference frequency, and form another oscillation circuit with an inductive coil, and the inductive coil of this oscillation circuit as detecting inductive coil, and detecting the parametric element of inductive coil as this oscillation circuit, make this oscillation circuit frequency of operation as detected parameters, the frequency of operation of right latter two oscillation circuit is sent to frequency mixer and carries out mixing, the difference frequency of frequency mixer output just can be treated as detection signal, detection signal can also be delivered to frequency counter and carry out the numerical value conversion, then transformation result is stored among the value storage, the numerical value of control circuit in the FDPA terrestrial information processor at regular intervals will the logarithm value storer reads once, and the data that the taking-up result is called as with another in " zero-error data-carrier store " again compare, if comparative result has difference, the ability output detection signal, otherwise numerical value of storage is exactly the minimum value that the numerical value that repeatedly takes out from value storage relatively draws through front and back in the output detection signal not, " zero-error data-carrier store ".
Therefore, we can be Figure 20 as a telefault detection components, when sweep circuit among Figure 17 scans the telefault detection components, only needs telefault detection components output result (promptly have or do not have) is scanned, and carries out data processing at last again.
C, electronic license plate encryption technology
All can there be the possibility of being plagiarized secret or usurping by the people in any digital technology, and this should take precautions against in advance.Because be not that user by equipment makes in design that is not equipped with and production run, any one technological development, production or management link all may be divulged a secret, this divulge a secret to belong to defalcate, be hard to guard against.In addition, the IC-card user in use also may allow the IC-card of oneself be usurped by other people or data are changed by people's malice.In order to prevent that these behaviors from taking place, we have taked multiple encryption technology.
1, user side encryption technology
We just specially reserve some yards position (bit) and use for the user when producing IC-card and IC-card read write line.The data of these yards position can't obtain in production and other management processes, also can't copy with read write line of oneself or similar read write line.
Its principle is that the user can encrypt by the ADPA read write line on the own car before using.Method is: open the use menu of ADPA, selecting encryption function, the input password is carried out, and encryption finishes.Like this, password has just been write among the IC-card of oneself, but does not store this password in ADPA, and the read-write system of ADPA is clearly once zero to encryption memory again every tens seconds, so also just can't copy with the read write line of native system.
When in use, IC-card one inserts circuit, the read-write system of ADPA is at first wanted the verified users password, if IC-card is not encrypted, be user code entirely for " 0 " because the read-write system of ADPA is always to the encryption memory zero clearing, both passwords all are that " 0 " is just in time by to last, system is through verification, praises to get final product operate as normal after errorless.
If IC-card has added close, must give the read-write system input password of ADPA, and must in tens seconds, finish, or system can automatic clear.If password is imported correctly, system gets final product operate as normal after praising through verification, if password is imported incorrectly, and system's meeting automatic clear, and require the user to re-enter again.Allow the user to input password three times at most, if not right at every turn, system can carry out locked, and reports to the police.
User cipher can be upset and is inserted among other yard position, makes appropriator (comprising the personnel that know well native system) decode very difficulty.This encryption method is not only effective to the ADPA read-write system of oneself, and to adopting the system of similar read write line, as it is all effective to refuel automatic charge station, automatically charging in car park station etc.
User side is encrypted and is just carried out between IC-card and ADPA, the not transmission of data and processing between the participation system of password, so it does not influence the travelling speed of system.
2, scrambler encryption technology
The scrambler encryption technology also is specially to reserve some yards position (bit) to use for user encryption in IC-card.When on the vehicle car plate time, car plate administrative authority needs the attribute of vehicle is input to by computer among the database of CWGS of the present invention system, simultaneously computer also can be added to some codings (scrambler) among the attribute coding of vehicle at random, and produces one group of new and the unique corresponding new coding of vehicle.This group scrambler managerial personnel can't know, has only CWGS of the present invention system to know, so just can prevent effectively that managerial personnel and other staff from practising fraud, as: overlap board.Scrambler is wanted the transmission and the processing of data between the participation system, so it can influence the travelling speed of system.
The scrambler encryption technology also can be carried out between IC-card and ADPA simultaneously, thereby guarantees that more reliably an IC-card can only corresponding ADPA.And password is without the transmission and the processing of data between the participation system, so it does not influence the travelling speed of system.
3, system encryption technology
System encryption is prepared to adopt high, normal, basic three levels of confidentiality, and purpose not only can allow system works safe and reliable, also will consider data processing speed and work efficiency.Introduce minimum one-level below earlier.
The principle that minimum one-level is encrypted is, IC-card is treated as " file " that quilt is edited, one " dossier mark " (encrypted indicia) also is set in IC-card, when CWGS of the present invention system also to change " dossier mark " in the IC-card when the IC-card user data is calling at every turn in data processing centre (DPC), in the storer of ADPA, also back up simultaneously one like this " dossier mark " use for verification.Through the IC-card of encrypting like this, even duplicated also and dare not use by others, because all will change after the each use of password.This encryption method is very simple, and is also very practical.
Only with a mil (1bit), data become " 1 " by " 0 ", or become " 0 " by " 1 ", and secrecy just can improve 50%; Adopt two mils, secrecy just can improve 75%; Adopt 4 mils, secrecy just can improve 94%, and this is enough.Encrypt the running of back to system, influenced hardly.
The principle of work of encrypted intermediate is with top to add the user code encryption method somewhat identical, different places are, low level encryption method is only encrypted between the read write line of IC-card and ADPA, the data processing centre (DPC) of CWGS of the present invention system has only done some change of secret code work, and the latter encrypts at the place, data input port of data processing centre (DPC).
Data processing centre (DPC) just reserves some yards position and encrypts usefulness to the user when carrying out digital coding.When providing IC-card, the password that the user can input oneself on the IC-card read write line of data processing centre's configuration, and password storage on the IC-card of oneself.But this password can not be stored in the system of IC-card read write line, so this password is only held by the user is unique alone.
When in use, the read-write system of ADPA is at first read this password in the coded system that deposits ADPA in together with its data, when both sides carry out exchanges data, the coded signal of ADPA will be given data processing centre (DPC) by radio communication and Network Transmission, and password is temporarily resided in the system of data processing centre (DPC), require the user to carry out verification then with artificial input password.User registration success is correctly represented in verification, the service communication contact that can be correlated with.
If password is imported incorrectly, system can require the user to re-enter again.Allow the user to input password three times at most, if not right at every turn, system can carry out locked automatically, and reports to the police.
This encryption method uses some inconvenience, the each use, the user all will with data processing centre's swap data (input password) at first, can reduce work efficiency.Therefore this encryption method is preferably used in regular registration, as every other month or half a year, requires the user to input password one time, and just the password and the password on the IC-card that reside in the system of data processing centre (DPC) of usefulness carries out verification at ordinary times.
The method of superencipherment is with key existing coding to be upset (recompile), decodes with key again in decoding end then.The information of key must transmit simultaneously with data during use.With M sequence pseudo-random code when key be effective method.The M sequence is exactly a shift register of being made up of a plurality of feedback networks, and the repetition period of its output signal is very long, can regard random code as.Encryption method is, earlier data all upset with pseudo-random code, covers several times continuously, just toward IC-card in, store, and later every change one secondary key, data are with regard to covering again once.IC-card is made into the little process information system of a band CPU, can changes the feedback inlet or the pitch of M sequence by software at any time and change key.After handling like this, each data in the IC-card are not independently, but relevant.Change any one digit number certificate artificially, the decoding end all can be found.Even also can't intercept or change data in the IC-card to the most familiar people of digital processing technology (designer who comprises native system).
Key is equivalent to the synchronous head in the data transfer procedure, does not have synchronous head, and any data all can not be by demodulation.So key is the most secret in system, when using key, plagiarize or the change data, all belong to criminal offence, be bound to be subjected to the legal organs investigation and punish by law.If take precautions against very one or two people's criminal offence, whether be worth and increase substantially operating cost, need conscientiously assessment.

Claims (12)

1, a kind of distributed automobile wireless electricity query method is characterized in that may further comprise the steps:
A, the on-vehicle information processor is set on each motor vehicle;
B, interconnective terrestrial information processor and inductive coil device are set in each vehicular control query point;
Inquire about and mutual exchange message by the mode of wireless data transmission between C, terrestrial information processor and the on-vehicle information processor, described terrestrial information processor is transferred to the on-vehicle information processor with the attribute information of the vehicular control query point of living in of its storage, the on-vehicle information processor correspondingly earthward message handler transmit the attribute information of the affiliated vehicle of its storage, the terrestrial information processor carries out control by the vehicle attribute information that receives to be handled; Or described terrestrial information processor is sent to the traffic management information processing enter to the on-vehicle information processor data that receives after treatment again and carries out control and handle, for urban transportation robotization, intelligent management provide various authentic datas;
D, vehicle are by before the described vehicular control query point, elder generation's touch inducing coil device also makes described terrestrial information processor and information is inquired about and intercoursed to described on-vehicle information processor once more, is the described vehicle that has carried out the control processing to confirm this vehicle;
E, described query point attribute information comprise that one or more in place numbering, expenses standard, the dealing direction, described vehicle attribute information comprise one or more in the number-plate number, type of vehicle, the dealing direction.
2, distributed automobile wireless electricity query method as claimed in claim 1 is characterized in that also comprising:
Between A, described terrestrial information processor and the on-vehicle information processor, the condition code that also comprises time changing in the information of intercoursing, realize between terrestrial information processor and the on-vehicle information processor point-to-point with this, or point-to-multipoint is carried out wireless data transmission, to reach various vehicles are inquired by classification, inquired about in batches, perhaps the several working ways of inquiring about one by one;
B, when carrying out query communication, constantly condition code is added new information at every turn, make data constantly carry out refile, to realize that numerous vehicles are carried out dynamic tracking by request signal;
C, the terrestrial information processor is constantly when the on-vehicle information processor sends request signal, also constantly change the information of part in the condition code according to certain rules, make the terrestrial information processor at every turn when numerous vehicles send request signal, some on-vehicle information processor only, receive for the first time that particularly the on-vehicle information processor of request signal preferentially answers, rather than all on-vehicle information processors all will be answered when receiving request signal at every turn, to prevent to repeat to answer the probability of increase signal collision and the workload that minimizing terrestrial information processor is handled invalid information.
When D, each vehicle enter place, expressway access or traffic main artery, the terrestrial information processor can send request signal to the on-vehicle information processor by ground inductive coil device, and to the vehicle of process carry out accession designation number one by one, next terrestrial information processor just can be undertaken vehicle being inquired about by accession designation number point-to-pointly, to increase work efficiency;
E, on-vehicle information processor can be connected with other electronic equipment by data input, output port, and the data of other electronic equipment can be transmitted by the wireless communication between on-vehicle information processor and the terrestrial information processor.
3, distributed automobile wireless electricity query method as claimed in claim 1 is characterized in that also comprising:
A, at each traffic check point, or pass a bridge, the underground inductive coil device that all is embedded with in passageway of the charge station of passing by on one's way, and be connected with the terrestrial information processor, this inductive coil device can be realized two functions by the automatic control of electronic switch, one is the existence that can detect the vehicle of passing by on one's way, and is used for the position of vehicle is accurately located; Another is to send low frequency radio request signal as the low frequency transmitting antenna of terrestrial information processor to the on-vehicle information processor;
B, when described terrestrial information processor is arranged at the urban traffic intersection, a plurality of described inductive coil devices are spaced and are installed on the traffic intersection passage, vehicle above the inductive coil device through out-of-date, the inductive coil device will detect the existence of vehicle, the summation of these inductive coil device useful area and the ratio of vehicle useful area, it is exactly the sum of vehicle, scan and data sampling by duty each inductive coil device, with realize constantly knowing exactly travel on the number of vehicle;
C, when described terrestrial information processor is arranged at the gateway, expressway, when vehicle passes through the inlet of highway, porch terrestrial information processor is when inquiring about the on-vehicle information processor, the attribute information of this entrance is sent to the on-vehicle information processor, the on-vehicle information processor is noted the attribute data of this entrance, when vehicle process exit, just can nullify it, realize that with this direction and distance that vehicle is walked have also write down, for charge provides foundation, do not need the internet can realize automatic charge yet;
D, when described terrestrial information processor is arranged at gateway, parking lot fee collection management place, when vehicle enters parking lot fee collection management place inlet, the on-vehicle information processor is at first sent request signal by the terrestrial information processor by the inductive coil device and inquires about, and the prompting vehicle drivers is voluntarily by inputing password in the on-vehicle information processor, pass through mutual communication, making in the storer of terrestrial information processor and on-vehicle information processor all can resident this password, when vehicle leaves EXIT, vehicle drivers is once more by prompting input password, if password is imported rightly, vehicle is let pass, and nullify this password, if password is imported not rightly, just no thoroughfare for vehicles in the exit in parking lot, if this vehicle is to take illegal means to leave the parking lot, this password is as a condition code and storage, no matter anywhere to realize making this vehicle, the terrestrial information processor that all is set at its elsewhere is inquired about and is reported to the police, and tracing for vehicle provides foundation.
4, a kind of vehicle household register network management system, it is characterized in that: comprise the on-vehicle information processor that is arranged at each vehicle, be arranged at terrestrial information processor and the connected ground inductive coil device and the data processing centre (DPC) of each vehicular control query point, described on-vehicle information processor comprises vehicle attribute information processing unit and signal transmitter/receiver circuit, described terrestrial information processor comprises signal transmitting unit and signal receiving unit, described terrestrial information processor adopts the wireless data transmission mode that the on-vehicle information processor is carried out queried access by signal transmitting unit and signal receiving unit, the on-vehicle information processor adopts the wireless data transmission mode that the terrestrial information processor is answered by vehicle attribute information processing unit and signal transmitter/receiver circuit, both sides exchange described query point attribute information and vehicle attribute information, and above-mentioned data are sent to data processing centre (DPC) by data transmission network carry out control and handle.
5, vehicle household register network management system as claimed in claim 4, it is characterized in that: the vehicle attribute information processing unit of described on-vehicle information processor and signal transmitter/receiver circuit specifically comprise interconnective electronic license plate IC-card read write line, has coding, the microprocessor of decoding function and high frequency radio signal transmitter/receiver circuit, and inductive coil device low frequency signal receiving circuit and signal anticollision circuit, information display and interface circuit, wherein, content in the scrambler mainly is the attribute information of vehicle and the information that is used for signal transmission and security of system, and this scrambler is a dynamic coding device, content wherein need be by ability operate as normal after the content in the IC-card read write line read-write input IC-card, and the content in the scrambler carried out dynamic coding, to realize encryption, in addition, the request signal that the signal transmitter/receiver circuit receives also will be encoded to the content in the scrambler, so that among the content that the attribute of request signal also is added in the scrambler, so that data processing centre (DPC) carries out information processing.
6, vehicle household register network management system as claimed in claim 5, it is characterized in that: interconnective scrambler, high-frequency signal modulator, low frequency signal modulator, inductive coil device, inductive coil device signal deteching circuit, control circuit, the interface circuit of comprising of the signal transmitting unit of described terrestrial information processor, its effect are to produce request signal; Signal receiving unit comprises radio signal receiving circuit, signal anticollision circuit, decoding scheme, data processing circuit, control circuit, interface circuit, its effect is the signal that receives the on-vehicle information processor, and carry out information processing, described scrambler is a dynamic coding circuit, be used for transmission data and condition code data are encoded, coded signal can transmit to the on-vehicle information processor by high frequency antenna or inductive coil device after high frequency modulated.
7, vehicle household register network management system as claimed in claim 6, it is characterized in that: the terrestrial information processor also is provided with a storer, be used for storage attribute code and condition code edited, the terrestrial information processor is constantly when the on-vehicle information processor sends request signal, also change the partial information in the condition code according to certain rules, make the terrestrial information processor at every turn when numerous vehicles send request signal, have only part on-vehicle information processor preferentially to answer, rather than all on-vehicle information processors all will be with answering when receiving request signal at every turn, to prevent to repeat to answer the probability of increase signal collision and the workload that increase is handled invalid information.
8, vehicle household register network management system as claimed in claim 7 is characterized in that: the signal transmitting unit of described terrestrial information processor produces request signal and visits in the following three kinds of mode of operations of on-vehicle information processor adopting one or more:
First kind is high-frequency signal active inquiry mode, and promptly constantly all can receive that the vehicle of signal sends request signal to the signal transmitting unit of terrestrial information processor by high frequency radio sky alignment;
Second kind is low frequency signal passive query mode, be that vehicle is from inductive coil device process the time, at first sensed coil device detects, and triggers terrestrial information processor signal transmitting element then, sends the low frequency request signal by telefault low frequencies sky alignment on-vehicle information processor;
The third is a low frequency signal active inquiry mode, the signal transmitting unit that is the terrestrial information processor is by the inductive coil device, constantly launch the low frequency request signal, when vehicle above the inductive coil device process time, the on-vehicle information processor will be received request signal.
9, vehicle household register network management system as claimed in claim 8, it is characterized in that: when described on-vehicle information processor produces recall signal, pulse code signal output is not to adopt fixed frequency to send working method continuously, but adopt the working method that intermittently sends signal, promptly produce a voltage sawtooth wave by a saw-toothed wave generator, with this sawtooth wave a voltage controlled oscillator is modulated again, its output recurrence interval or frequency are constantly changed by the voltage change ratio of sawtooth wave, that is: producing scanning frequency pulse exports, come the output of controlled encoder signal with scanning frequency pulse then, code device signal output is single group coding pulse signal or many group codings pulse signal.
10, vehicle household register network management system as claimed in claim 9, it is characterized in that: described terrestrial information processor comprises a signal anticollision unit, so that the coded pulse signal that the relative phase that a plurality of on-vehicle information processors send constantly changes is sequentially lined up a sequence, and after being stored, the input information processor is handled again, described signal anticollision unit is that a switching regulator electric charge of being made up of active device shifts delay circuit, and described switching regulator electric charge shifts the last output terminal of delay circuit a pulse shaping circuit also is installed, so that signal can not be out of shape through how many times circulation time-delay.
11, vehicle household register network management system as claimed in claim 7 is characterized in that: one or more in following three kinds of mode of operations are adopted in the encryption of content in described IC-card or the scrambler:
A, the user side encryption technology, promptly be when producing IC-card and IC-card read write line, just specially reserving some yards position uses for the user, the user can encrypt by the read write line of the on-vehicle information processor on the own car before using, password is write among the IC-card of oneself, but in the on-vehicle information processor system, do not store this password, the read write line of on-vehicle information processor can be clearly once zero to encryption memory again every tens seconds, when in use, IC-card one place in circuit, the read write line of on-vehicle information processor is at first wanted the verified users password, if IC-card is not encrypted, be that user code is " 0 " entirely, because the read write line of on-vehicle information processor is always to the encryption memory zero clearing, both passwords all are that " 0 " is just in time by to last, system is through verification, praise and get final product operate as normal after errorless, if IC-card has added close, must give the read write line input password of on-vehicle information processor, and must in tens seconds, finish, system's meeting automatic clear, if password is imported correctly, system gets final product operate as normal after praising through verification, if password is imported incorrectly, system's meeting automatic clear, and require the user to re-enter again, allow the user to input password three times at most, if not right at every turn, system can carry out locked automatically;
B, system's scrambler encryption technology, promptly be in IC-card, specially to reserve some yards position to use for encrypting, when vehicle the time at last car plate, car plate administrative authority need be input to the attribute of vehicle among the database of vehicle household register network management system by computer, simultaneously computer also can be at random some codings---scrambler, be added among the attribute coding of vehicle, and produce one group of new and the unique corresponding new coding of vehicle, this group scrambler managerial personnel can't know, have only vehicle household register network management system to know, so just can prevent managerial personnel and other staff cheating effectively, the cover board;
C, user side scrambler encryption technology, promptly between IC-card and on-vehicle information processor, carry out simultaneously, when vehicle the time at last car plate, car plate administrative authority need be input to the attribute of vehicle among the database of vehicle household register network management system by computer, simultaneously computer also can be at random some codings---scrambler, be added among the attribute coding of vehicle, and produce one group of new and the unique corresponding new coding of vehicle, this group scrambler managerial personnel can't know, have only the vehicle household register NMS on-vehicle information processor of unifying to know, that is: the on-vehicle information processor also will be provided with some passwords and IC-card and is used, so just can prevent managerial personnel and other staff cheating effectively, the cover board guarantees that an IC-card can only use by a corresponding ADPA on-vehicle information processor simultaneously more reliably.
12, vehicle household register network management system as claimed in claim 11 is characterized in that: the encryption of content divides three grades of rudimentary encryptions, encrypted intermediate, superencipherment in described IC-card or the scrambler, and is specific as follows:
A, rudimentary encryption, be some yards position to be set use in IC-card for encrypting, and these yards position is defined as " dossier mark ", when calling the IC-card user data at every turn, the data processing centre (DPC) of vehicle household register network management system also to change " dossier mark " in the IC-card, in the storer of on-vehicle information processor, also set up simultaneously such " dossier mark " to use for verification, low level encryption method is only encrypted between the read write line of IC-card and on-vehicle information processor, and the data processing centre (DPC) of vehicle household register network management system has only done some change of secret code work;
B, encrypted intermediate, be to encrypt at the place, data input port of data processing centre (DPC), data processing centre (DPC) is when carrying out digital coding to IC-card, just reserve some yards position and encrypt use to the user, when providing IC-card, the user can import the password of oneself on the IC-card read write line of data processing centre's configuration, and password storage on the IC-card of oneself, this password is only held by the user is unique alone, when in use, the read write line of on-vehicle information processor is at first read this password in the coded system that deposits the on-vehicle information processor in together with its data, when both sides carry out exchanges data, the coded signal of on-vehicle information processor will send data to data processing centre (DPC) by radio communication and data network transmission system, and password is temporarily resided in the system of data processing centre (DPC), require the user to carry out verification then with artificial input password, user registration success is correctly represented in verification, the service communication contact that can be correlated with, if password is imported incorrectly, system can require the user to re-enter again, allow the user to input password three times at most, if it is not right at every turn, system can carry out locked automatically, and reports to the police;
C, superencipherment is with key existing coding to be upset recompile, decode with key again in decoding end then, the superencipherment here is meant, adopt M sequence pseudo-random code to work as key and carry out superencipherment, the M sequence is exactly a shift register of being made up of a plurality of feedback ports, the repetition period of its output signal is very long, can regard random code as, IC-card is made into the little process information system of a band CPU, can change the feedback inlet or the pitch of M sequence by software at any time and change key, after handling like this, each data in the IC-card are not independently, but relevant, change any one digit number certificate artificially, the decoding end all can be found, and report to the police.
CN 03106562 2003-02-26 2003-02-26 Distributed vehicle radio inquiry method and vehicle household registration network management systems Expired - Fee Related CN1253837C (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101408718B (en) * 2007-10-12 2011-01-19 上海宝康电子控制工程有限公司 Road crossing motor vehicle driving person checking and controlling system

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1297947C (en) * 2004-12-29 2007-01-31 天津大学 Wireless vehicle detecting sensor
CN1300749C (en) * 2004-12-29 2007-02-14 天津大学 Wired vehicle detecting sensor
CN100566273C (en) * 2007-09-17 2009-12-02 陈洪 Car monitoring system based on electronic identity identification
CN101866552A (en) * 2009-04-20 2010-10-20 东莞市凌信电子科技有限公司 RFID-based vehicle identification system
CN102054358A (en) * 2009-11-10 2011-05-11 中兴通讯股份有限公司 Control system and method of electronic license plate
CN102737514B (en) * 2011-11-16 2015-11-25 刘伟南 The wagon detector that can release news, traffic congestion detecting device, vehicle attribute detecting device
CN103903431B (en) * 2012-12-25 2018-01-30 刘伟南 A kind of vehicle detection apparatus
CN103632425A (en) * 2013-11-26 2014-03-12 福建省天鼎电子技术有限公司 Method for sharing magnetic field transmitting antenna and parking lot system ground induction coil
CN105590449B (en) * 2015-12-29 2017-12-12 南京邮电大学 A kind of learner-driven vehicle traveling monitoring system and monitoring method
CN107038871B (en) * 2017-05-11 2021-09-10 姜茂清 Consumption and safety intelligent management system for automobile in internet
CN107067042B (en) * 2017-05-17 2019-12-31 江苏本能科技有限公司 Automobile electronic identification classification processing method and system
CN109515383A (en) * 2018-10-18 2019-03-26 昆明理工大学 A kind of auto security system and its application method
CN111815962A (en) * 2020-07-08 2020-10-23 支付宝(杭州)信息技术有限公司 Vehicle identity identification method and device, master device and slave device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101408718B (en) * 2007-10-12 2011-01-19 上海宝康电子控制工程有限公司 Road crossing motor vehicle driving person checking and controlling system

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