CN1365908A - System and method for automatically and dynamically recognizing and detecting overload of motor-driven vehicle - Google Patents

Abstract

An automatic recognition and detection system and its method for over-load of motor-driven vehicle feature the combination of automatic microwave recognition technique with electric-contact drive induction technique. The system is composed of computer, microwave R/W, electric-contact driven inductor, ground inductor, snapshot unit, overload recognizer, database and transmitting subsystem. When a vehicle runs at 5-120 Km/h of speed, its total weight and overload weight can be correctly obtained in 15 m distance, and then be printed or stored.

Description

The dynamic mobility car automatic recognition detection system and method that overloads

The present invention relates to a kind of dynamic mobility car automatic recognition detection system and method that overloads, particularly utilize the system and method for microwave automatic identification technology and the organic integration of electric shock transmission induction technology.

Visitor, air truck motor-car overload problems are social now a great problems, owing to be subjected to the driving of interests, exhausted most visitor, the problem that all there is overload in the air truck motor-car, the major production areas of mineral products particularly, long haul car more than 95% is seriously overload all, the car that approval weight is 9 tons, have in addition install to 20 tons, trudge and move harbour or destination from the mining area to. The main contributor of great traffic route accident is not only in overload, and also serious destruction road pollutes, and reduces the life-span of vehicle. At present, traffic also only limits to set out police strength to the improvement of overload, sets out on a journey and looks into, blocks up, the weight of subjective judgement overload. So not only cause road traffic congestion, look into one and leak hundred, and law enforcement do not have scientific basis, cause car owner and traffic police's disagreement and contradiction.

It is reported, at present domestic examination to overload, the one, only depend on naked eyes to detect, this method is science not, gets sth into one's head; The 2nd, by measuring the area calculated weight, for different products, area and weight are out-of-proportion, do not have science; The 3rd, the vehicle of suspecting overload is reached the appointed place weigh, this is the method for selective examination just, looks into easily one and leaks hundred, and is not strict in enforcing the law respectful. More than the examination of must stopping of three kinds of methods, cause easily road congestion, have a strong impact on the unimpeded of traffic route. Also has in addition a kind of dynamic electron weighbridge, the detection of can within 10 kilometers/hour, weighing, but because construction is complicated, it is high to need road closure to deep-cut ground (meter wide * 0.8,20 meters long * 3 meter high) cost cost, low speed causes the road traffic congestion easily, can not extensive use.

Purpose of the present invention is exactly in order to overcome the above problems, provide a kind of overload of not stopping automatic recognition detection system and method, make the visitor, borrow in service at 5 kilometers-120 kilometers of fortune vehicle speed per hour, judge accurately the gross weight of vehicle, and the weight that can automatically calculate overload is also printed or storage, more reasonable, science that examination overload work is become, for law enforcement provides favourable evidence, busy finding out and stopping the work frees from the road surface the traffic police, just can verify one by one whole vehicular traffics by computer.

The scheme that the present invention sees above-mentioned purpose in fact comprises: computer, microwave read-write subsystem, electric shock transmission induction subsystem, feel subsystem, capture subsystem, overload recognition subsystem, database subsystem, transmission subsystem and automatic recognition detection method.

Described microwave read-write subsystem is characterized in that: it forms microwave read write line, microwave transmit receive antenna, microwave electron chip by three parts. Microwave read write line and microwave transmit receive antenna comprise microwave transmitter, microwave receiver, wakeup time device, quick-searching auxiliary unit. The read-write detecting unit is for sending data and reception to the microwave electron chip from the answer signal of microwave electron chip. It comprises digital circuit blocks, microwave circuit module and antenna; Digital circuit blocks comprises again control section and data demodulates part, microwave circuit module modulate emission is to the data of microwave electron chip, provide a continuous carrier to be used for the backscattering wave of microwave electron chip, receive to conciliate and transfer from the backscattering wave signal of microwave electron chip, the quick-searching auxiliary unit mainly is comprised of single-chip microprocessor MCU, it links to each other with the read-write detecting unit, and the data analysis that the read-write detecting unit reads in is processed. The microwave electron chip comprises identifier cog region processor CPU, read only memory ROM, dynamic memory RAM, the unique number of dispatching from the factory that a chip is arranged in the identifier cog region of each microwave electron chip stores following various code among the dynamic memory RAM: the international lifelong coding of vehicle, car owner's title, license plate number, Motor Number, Vehicle Identify Number, vehicle, vehicle color, approval weight, light weight, Vehicle length, the vehicle number of axle, cognizance code; Store the COS of management of software ic system in the read only memory ROM, i.e. monitoring programme, manage above-mentioned dynamic memory RAM information read maybe can not read. Write maybe and can not write. Change maybe and can not change.

Described electric shock transmission induction subsystem is dynamic contact electric transmission induction weighing system, it is characterized in that: it is comprised of electric shock transmission inductor, cabinet, low-power consumption electric component, high energy resin glue, the recognition unit of weighing, Data Detection unit, the electric shock transmission inductor of weighing adopts the alternating expression type, and it is the above inductor of 1.8M that two length are installed in each track. The distance of two inductors is that 3.5M is for detection of the appearance of vehicle and measurement length; The built-in central processing unit of cabinet, cable connector, data converter, arrester, demodulator; The low-power consumption electric component receives the signal of electric shock transmission inductor as input signal; The high energy resin glue is used for installing electric shock transmission inductor; Weigh recognition unit and Data Detection unit analyzed, calculates, stores, transmitted, and can accurately detect the data of every vehicle input signal, as, by information such as time, license plate number, vehicle, car owner's title, approval weight, deadweight, actual pay load, wheelbase, the number of axle, length over ends of body, track, type, the speed of a motor vehicle. And can process according to the difference setting.

Feel subsystem is flip flop equipment describedly, and it comprises ground induction coil, controller, cable, when vehicle passes through, triggers ground induction coil, starts the microwave read write line, the information in the microwave electron chip of installing on the recognition vehicle.

Described candid photograph subsystem is supplementary means, and it comprises digital camera, the picture and text recognition unit, and when the vehicle without the microwave electron chip passed through, this system started automatically, took license plate number and headstock, judged approval weight, deadweight with difference.

Described overload recognition subsystem is comprehensive identification, computing, evaluation, record, transmission system, and it can gather, classifies, compares, draw correct conclusion with various effective information. Clearly prompting is that car overload, and overload how much, should how to punish.

The described database subset transmission subsystem of unifying mainly is information classification keeping, storage, transmission to gathering, can deposit simultaneously the information of 400,000 cars.

Described overload recognition detection method be utilize computer, microwave read-write subsystem, electric shock transmission induction subsystem, feel subsystem, capture subsystem, overload recognition subsystem, database subsystem, transmission subsystem to the dynamic mobility car overload carry out automatic recognition detection, for strict law enforcement provides scientific basis. It is characterized in that may further comprise the steps: 1) with the microwave electron chip according to different requirements and managerial needs be packaged into beautiful, attractive in appearance, indicate obvious electronic cards; 2) with first the sailing and individualized of electronic cards, write following several groups of data messages in the electronic cards by traffic control department or authorities: the international lifelong coding of vehicle, car owner's title, license plate number, Motor Number, Vehicle Identify Number, vehicle, vehicle color, approval weight, light weight, Vehicle length, the vehicle number of axle, cognizance code; 3) initialize and personalized electronic cards is issued the car owner together with car plate, as the register one's residence electronic license plate of authentication of vehicle; 4) electronic cards is installed on the front windshield glass of car top.

Owing to adopted above scheme, visitor, the critical physical data of goods transport vehicle and feature are write an intelligentized electronic medium by computer technology, be referred to as " motor vehicles electronic license plate ". Register the license when registering one's residence at vehicle, issue the car owner by traffic management office together with car plate; That has registered the license handles when examining or handling visitor, shipping operation formality annually in the lump. Car plate is more easily forged, but electronic cards is interior owing to adopted the modern means of science and technology such as microelectric technique, computer technology, data encryption technology, has guaranteed uniqueness and the unforgeable of electronic cards. The use of electronic cards combines with traffic control division management system and management method, thereby the data accuracy that just can guarantee electronic cards guarantees the reliability of overload recognition detection, the management method of science just can be provided for traffic police's ' overload remediation ', provide legal foundation for processing overload. Because native system adopts microwave technology, the wire/wireless transmission technology just can guarantee the law enfrocement official in the situation of not stopping at remote (15 meters), with the shortest time and easy mode of operation, whether detect the vehicle that passes through overloads, magnitude of surcharge is convenient to the traffic police personnel and is taked corresponding treatment measures.

The present invention proposes two kinds of detection modes, fixed detection method and portable detection method.

Fig. 1 is the dynamic mobility car of the present invention automatic recognition detection system and method structural representation that overloads.

Fig. 2 is the dynamic mobility car of the present invention automatic recognition detection system and method operation principle block diagram that overloads.

Fig. 3 is electronic cards function block diagram of the present invention.

Fig. 4 is that electronic cards of the present invention forms flow chart.

Fig. 5 is microwave read write line schematic block circuit diagram of the present invention.

Fig. 6 is the present invention transmission inductor circuit theory diagram A that gets an electric shock.

Fig. 7 is the present invention transmission inductor circuit theory diagram B that gets an electric shock.

The present invention is described in further detail below by specific embodiment.

Embodiment: for complete description, present embodiment has comprised a kind of dynamic mobility car overload automatically identification detection system and detection method thereof simultaneously. Wherein:

In the electronic cards (Fig. 3,4) of described microwave read-write subsystem processor CPU, read only memory ROM, dynamic memory RAM, identifier cog region are arranged; In the identifier cog region of each electronic cards the unique numbering of dispatching from the factory of a chip is arranged; Store the data message that needs storage among the described dynamic memory RAM, as; The international lifelong coding of vehicle, car owner's title, license plate number, Motor Number, Vehicle Identify Number, vehicle, vehicle color, approval weight, light weight, Vehicle length, the vehicle number of axle, cognizance code; Store the COS of management of software ic system in the described read only memory ROM, i.e. monitoring programme is managed reading or can not reading and writing maybe can not writing, change maybe and can not change of information among the above-mentioned dynamic memory RAM; Also be provided with data self-destruction terminal in the electronic cards, when meeting destruction or being taken away by force, the storage data disappear automatically. The microwave transmitter of (Fig. 5), receiver, wakeup time device, read-write detecting unit, quick-searching auxiliary unit refer to that microwave transmitter, receiver are used for being connected with external device in the described microwave read-write subsystem, data writing or read data in the electronic cards in the electronic cards; The wakeup time device is used for " dormancy " and duty conversion of control electronic cards; The read-write detecting unit is used for sending data and receiving answer signal from electronic cards to electronic cards, and it comprises, and the digital circuit mould is fast, microwave radio circuit module and antenna; The digital circuit module comprises again control section and data demodulation part, and microwave circuit module modulate emission is to the data of electronic cards, and the backscattering wave that provides a continuous carrier to be used for electronic cards receives to conciliate and transfers from the backscattering wave signal of electronic cards; The quick-searching auxiliary unit mainly is comprised of single-chip microprocessor MCU, and it links to each other with the read-write detecting unit, and the data analysis that the read-write detecting unit reads in is processed. Also include component computer main frame and slave, it is by the quick-searching auxiliary unit with being connected of detecting unit of read-write, adopt the high speed dual port RAM to transmit data with parallel mode between the single-chip microprocessor MCU in it and the quick-searching auxiliary unit, and can gather, store, compare, analyze, process electronic cards for information about; It can also by Traffic Administration Bureau of the network connection Ministry of Public Security and each province, city's vehicle management LAN upload, deposit, download various vehicle specific informations; Also there be " overload vehicles peccancy " in the local data base in the computer; Can send by the Determination result stop, punish, record, the instruction such as clearance.

Described electric shock transmission induction subsystem is comprised of electric shock transmission inductor (Fig. 6,7), cabinet, low-power consumption electric component, high energy resin glue, the recognition unit of weighing, data detecting unit. Its electric shock transmission inductor of weighing is a kind of material that kinetic transformation can be become electric energy after special processing. To make coaxial configuration by metal knitted heart yearn, electric shock material and metal shell. Mainly be to place a highfield to polarize the electric shock material, the order of magnitude is the about 100000V of electric shock material of each millimeters thick. The corona field of unjacked cable also adopts this electric field. Polarization field makes noncrystalline condensate become the form of semi-crystal, has kept again many polymeric pliable and tough characteristics simultaneously. The electric shock material produces electric charge when being subject to mechanical shock or vibration. At atomic layer, putting in order of dipole (hydrogen-fluorine couple) upset, and attempts to make it to recover original state. The result that this dipole is upset is exactly that an electron stream forms. Just as the water in the sponge, when you pushed a wet sponge, water can flow out from sponge, and when you unclamped, water is sucked back going again, and this is quite similar with electric shock transmission inductor. When having pressure to be applied on the electric shock transmission inductor, just produced electric charge (voltage), and when removing load, will produce the signal of an opposite polarity. The voltage that it produces can be quite high, but the electric current that electric shock transmission inductor produces is smaller. The detection principle of electric shock transmission inductor is exactly through out-of-date Information Monitoring, namely in tire Information Monitoring during through electric shock transmission inductor at vehicle. Induction coil can only demonstrate a large metal object and pass through coil, and the limited characteristic information of vehicle can only be provided. And electric shock transmission inductor detects the tire through electric shock transmission inductor, produces one be applied to electric shock transmission inductor on the analog signal that is directly proportional of pressure, and the cycle of exporting is identical with the time that tire rests on the electric shock transmission inductor. When a tire process electric shock transmission inductor, electric shock transmission inductor will produce a new electronic impulse. Weigh the under steam detection principle of (WIM) of electric shock transmission inductor is signal integration to stressed generation. Electric shock transmission inductor adopts the alternating expression type, and it is the above electric shock transmission inductor of 1.8M that two length are installed in each track. The distance of two electric shock transmission inductors is that 3.5M is for detection of the appearance of vehicle and measurement length; The built-in central processing unit of cabinet, cable connector, data converter, arrester, demodulator; The low-power consumption electric component receives the signal of electric shock transmission inductor as input signal; The high energy resin glue is used for installing electric shock transmission inductor; Weigh recognition unit and data detecting unit analyzed, calculates, stores, transmitted, and can accurately detect the data of every vehicle input signal, as, by information such as time, license plate number, vehicle, car owner's title, approval weight, deadweight, actual pay load, wheelbase, the number of axle, length over ends of body, track, type, the speed of a motor vehicle. And can process according to the difference setting.

Described electric shock transmission induction subsystem performance meets ASTME1318-94 dynamic weighing standard. Output uniformity on the electric shock transmission inductor length direction is less than ± 7%, and when being embedded under the road surface permanent installation, weighing precision is applicable to ASTME1318-94 standard I class dynamic weighing system in ± 10%; When being installed in the road surface, weighing precision is applicable to ASTME1318-94 standard I I class dynamic weighing system in ± 15% temporarily. Electric shock transmission inductor precision and Vehicular vibration and beat relevant, relevant with the area that tire is pressed on the electric shock transmission inductor, relevant with temperature, need temperature-compensating. Especially road quality is very large on the system accuracy impact, and it is better to be used in cement pavement, and the life-span is longer than bituminous paving, and the road quality that is used for dynamic weighing should meet the pertinent regulations of ASTM. The precision that usually can guarantee is ± 10%, and individual other can reach 1-2%. Velocity interval can be from 5 kilometers/hour to 120 kilometers/hour. The weight lower limit is bicycle, and the upper limit can according to computer software and capacitor adjustment, can reach 120 tons.

The present invention can be divided into two kinds of detection modes as required, and a kind of is fixed detection method; Described fixed checkout equipment is arranged at main road junction, about 300 meters, the place ahead, charge observation station. Comprise in the system computer, microwave read-write subsystem, electric shock transmission induction subsystem, feel subsystem, capture subsystem, overload recognition subsystem, database subsystem, transmission subsystem and automatically identify detection method. Ground sense subsystem and electric shock transmission induction subsystem activate the work of microwave read-write subsystem, the information in the read electric card by external applied pressure; Electric shock transmission induction subsystem is converted into analog signal with the electric charge that pressure produces, and measures the gross weight information by vehicle; Two groups of information exchanges are crossed computing, overload recognition subsystem, the analysis of database subsystem, the comparison of computer, and the information such as the time of passing through by vehicle, license plate number, vehicle, car owner's title, approval weight, deadweight, actual pay load, excess weight, punishment content are shown fast; Overloaded vehicle is carried out sound and light alarm, and will be transferred to for information about inspection post, the place ahead, can carry out the data record to local car (electronic cards is arranged), be transferred to local traffic management office, for preventing that road congestion from can carry out per month or per season is concentrated punishment; To the vehicle without electronic cards, capturing subsystem is filmed car plate, headstock, from the vehicle load classification chart of database, search the information such as approval weight, deadweight, and with the actual pay load analysis, compare, make the judgement that whether overloads, as belonging to overload, will be transferred to for information about inspection post, the place ahead, with sound and light alarm, inspection post, the place ahead can with print for information about and interception car punish. As belong to the overloading free vehicle and then let pass and pass through. Another kind is portable, and the computer of described movable type can be selected Vehicle mounted station formula machine or portable notebook computer. Electric shock transmission inductor can be positioned in the high-performance rubber pad, and tiling is located at the highway section that will check, and other subsystems can be placed in the examination car, and vehicular traffic is carried out motor-driven examination, and transmission means can adopt the radio modem online.

Described overload identification detection method be utilize computer, microwave read-write subsystem, electric shock transmission induction subsystem, feel subsystem, capture subsystem, overload recognition subsystem, database subsystem, transmission subsystem to the dynamic mobility car overload automatically identify detection, for strict law enforcement provides scientific basis. It is characterized in that may further comprise the steps: 1) with the microwave electronic chip according to different requirements and managerial needs be packaged into beautiful, attractive in appearance, indicate obvious electronic cards; 2) with first the sailing and individualized of electronic cards, write following several groups of data messages in the electronic cards by traffic control department or authorities: the international lifelong coding of vehicle, car owner's title, license plate number, Motor Number, Vehicle Identify Number, vehicle, vehicle color, approval weight, light weight, Vehicle length, the vehicle number of axle, cognizance code; 3) initialize and personalized electronic cards is issued the car owner together with car plate (that has registered the license handles in the lump in annual examination or when handling visitor, shipping operation formality), as the register one's residence electronic license plate of authentication of vehicle; 4) electronic cards is installed on the front windshield glass of car top. Electronic cards is being initialized and when individualized, also will carry out the test key encryption to information more than four groups, the information after then will encrypting writes in the electronic cards in the lump. According to fixed and portable different, its usage is also different. Locate to arrange automatically identification detection system of fixed dynamic mobility car overload at major trunk roads, inspection post, bridge critical point etc., in the situation of not stopping, passing visitor, goods stock are checked the overload situation one by one; Quick-searching auxiliary unit and overload recognition subsystem utilize microwave signal immediately to read data in the electronic cards on tested passing visitor, the goods stock by detecting unit, be sent to component computer, component computer is processed data, determines clearance, the vehicle of capturing or stop; At the examination car automatically identification detection system of portable dynamic mobility car overload is set, electric shock transmission inductor can be positioned in the high-performance rubber pad, tiling is located at the highway section that will check, vehicular traffic is carried out the man-machine casual inspection that combines, quick-searching auxiliary unit and overload recognition subsystem utilize microwave signal immediately to read data in the electronic cards on tested visitor, the goods stock by detecting unit, be sent to component computer, component computer is processed data, determines clearance, the vehicle of capturing or stop. Transmission means can adopt the radio modem online.

The described dynamic mobility car overload automatically microwave read-write subsystem of identification detection system and method can accurate, errorless, in time, rapidly be read data in vehicle electrical subcard the in service of 100 kilometers of speed per hours apart from 15-20 rice in order to reach vehicle, adopt 824-960MHZ, 2.45GHZ, 5.8GHZ carrier frequency, can select according to different needs.

The below is described in further detail the each several part of present embodiment. One, the formation of detection system and method is identified in the overload of present embodiment dynamic mobility car automatically

Native system is made of following several parts: accompanying drawing 1 is automatically identification detection system and method structural representation of dynamic mobility car overload of the present invention. Among the figure 1. electronic cards, 2. computer, 3. microwave read-write subsystem, 4. get an electric shock the transmission induction subsystem, 5. feel subsystem, 6. capture subsystem, 7. overload recognition subsystem, 8. database subsystem, 9. transmission subsystem, 10. audible-visual annunciator.

(1), computer

The configuration requirement of computer; GPU PIII, mainboard, RAM 128M, network interface card, hard disk 40G, cabinet, Switching Power Supply, display, mouse, keyboard, hub, netting twine.

1, connect Traffic Administration Bureau of Ministry of Public Security each province, city's vehicle management LAN on, upload, deposit, download various vehicle specific informations.

2, collection, storage, comparison, analysis, processing vehicle electrical subcard and electric shock transmission induction subsystem are interior for information about.

3, deposit " vehicle load classification chart " " overloaded vehicle database "

4, by testing result, order cuts looks into mechanism's legal vehicle of letting pass, or order cuts and looks into mechanism's illegal vehicle of stopping.

5, system's configuration main frame and slave, main frame is used for daily detection vehicular traffic; Slave is used for checking the various information datas of being looked into vehicle by stopping, and slave connects Traffic Administration Bureau of Ministry of Public Security wide area network, and the data of calling other province, vehicle administration office, city vehicle standard database by wide area network server are in order to inquiry.

(2), microwave read-write subsystem

1, electronic cards

Do not stop and detect the specification requirement of vehicle data message for reaching remote (15 meters) as the microwave electronic chip of vehicle electrical subcard, adopted the microwave identification hardware frame of 2.45GHZ carrier frequency. The major technique parameter is: be with eight GPU; 4K byte ROM is arranged; User 256 byte RAM are arranged; Power: 300mw; Detect distance: 15 meters; The detection speed per hour of can not stopping is 120 kilometers vehicular traffic; The read/write detecting unit is to the message transmission rate of the forward chaining of electronic chip: 189Kbps; Electronic chip is to the message transmission rate of the backward chaining of read/write detecting unit: 92Kbps; Environment for use temperature :-40 ℃-+85 ℃.

2, microwave read write line and two transmitting antenna, double reception antenna

The microwave read write line is the vitals in the native system, and it is initialized by read/write detecting unit, two transmitting antenna and double reception antenna, quick-searching auxiliary unit, electronic cards chip and personalized card sending system forms. As sending data-signal and receive answer signal from electronic cards to electronic cards at remote (15 meters).

1), the read/write detecting unit is comprised of digital circuit module and microwave radio circuit module two parts, the digital circuit module is comprised of control section and data demodulation part again. The microwave radio circuit module is finished modulate emission to the data of electronic cards, and the backscattering wave that provides a continuous carrier to be used for electronic cards is provided, and finishes to receive to conciliate and transfers from the backscattering wave signal of electronic cards. Its major technique parameter is:

1.. forward chaining

Master clock frequency: 19.075MHZ; Data rate: 307.66bps (effectively 189.33Kbps); Frequency: 2422MHZ; Modulation: filtering 00K; Transmitting power: maximum 500mw (+27 decibels above milliwatt); Direct sequential spread spectrum: cut apart, cut apart speed for every 31: 9.537 million cycle per seconds; Code length: 31; Error correction/detection: 16 bit trials and 5 bit parity verifications (correction, two detections); Demodulation techniques: diode detector.

2.. backward chaining

Data rate: 149bps (effectively 91.75Kbps); Frequency range: a low section 2418MHZ (± 15MHZ), stage casing 2442MHZ (± 15MHZ), high section 2465MHZ (± 15MHZ); Modulation: backscattering wave differential phase keying (DPSK) subcarrier; Subcarrier frequency: 596KHZ; Frequency agility: every section 75 numbers, interval 400KHZ; Jump speed: each information once; Message length; Conversion height 104 bytes; Receiving sensitivity: minimum-80 decibels above milliwatts; Subcarrier is reconciled: use the DSP differential phase keying (DPSK); Error correction: 16 bit checks and 5 bit parities checks (correction, two detections); Staggered: each data word is interlocked.

2), two transmitting antennas and double reception antenna. Antenna adopts the fast structure of full mould, sturdy and durable, and outer cover adopts antiultraviolet material, the sealing of inlet seal glue, and water resistance is good. The antenna bandwidth can cover uhf band, is applicable to two transmitting antennas of the multiple applied environment of read-write equipment and two reception antennas. Transmitting antenna is the compensation antenna of 6dp, reception antenna be 12 as, because gain is different, the size of reception antenna only is 1/3 of transmitting antenna. Operating frequency (MHZ): 824～960MHZ, 2.45GHZ, 5.8GHZ carrier frequency; Horizontal lobe width: 90 °; Gain (dBi): 7; Input impedance (Ω): 50; Voltage standing wave ratio:＜1.35; Before and after than (dB):＞20; Polarization: horizontal polarization; Third order intermodulation (IM3) is (dBm):＜-107; Power capacity (W): 500; Joint: N-type (F), 7/16 (F); Wind resistance speed (m/s):＞60; Lightning protection: direct current ground connection; Vertical plane angle of pitch adjustable extent: 0 °～30 °.

3), quick-searching auxiliary unit. Formed by single chip circuit, be connected between read/write detecting unit and the component computer main frame, the main monitoring Card Reader of being responsible for, the burden of mitigation system computer, improve component computer and search the speed of related data, adopting at a high speed between the MCU homologous ray of auxiliary unit, " dual port RAM " transmits data with parallel mode. Auxiliary unit has following functions:

1.. when having vehicle to pass through, " digital wagon detector " notifies auxiliary unit with vehicle by signal, learns passing car number, and the MCU of unit reads and sets the electronic cards data on the traffick on the track.

2.. the MCU of unit reads this vehicle to be described without electronic cards or bad when setting the data of traffick electronic cards on the track, in time notifies component computer this car inquiry of ordering to capture, stop.

3.. the MCU of auxiliary unit at first reads also interior " the electronic cards sequence index numbering " of verification electronic cards, and information in time is sent to component computer; Unit MCU then continues to read＜the international lifelong coding of vehicle＞etc. data, " electronic cards index numbering " can utilize the numeral of existing some index numbering of traffic control department, such as country, province, city's code, adds the sequence number composition when issuing the electronic cards chip.

4.. component computer is namely searched relevant information by call number after receiving " electronic cards sequence call number " from unit MCU in Copyright Law About Databases, and waits for unit MCU contact and check data.

5.. ' vehicle international lifelong coding ' that unit MCU reads electronic cards has been encrypted when the hair fastener generation ' the international lifelong coding of vehicle ' former test key with ' the international lifelong coding of vehicle ' of 26 bytes of newly reading and 6 bytes dispatch from the factory unique numbering more together " the machine station key " of 8 bytes new test key of drawing after by the SHF AES compare, then belong to correct as coincideing, the notice component computer orders to let pass. As belong to mistake and at once information is sent to component computer and does further processing.

6.. component computer is compared at database the information that unit MCU sends here to overloaded vehicle; Can carry out the data record to local car (electronic cards is arranged), be transferred to local traffic management office, for preventing that road congestion from can carry out per month or per season is concentrated punishment; To the vehicle without electronic cards, capturing subsystem is filmed car plate, headstock, from the vehicle load classification chart of database, search the information such as approval weight, deadweight, and with the actual pay load analysis, compare, make the judgement that whether overloads, as belonging to overload, will be transferred to for information about inspection post, the place ahead, with sound and light alarm, inspection post, the place ahead can with print for information about and interception car punish. As belong to the overloading free vehicle and then let pass by middle comparison.

4), electronic cards initializes and personalized card sending system

Card sending system is comprised of card sender and card sending system software, is started shooting by the authorization card mandate during hair fastener. Initialization and personalized card sending system software comprise " the electronic cards sequence index numbering " that generates according to card number, distribution user's electronic cards and management software; Data query (user's electronic cards is browsed, control card is browsed, check inquiry) software; Lower dress data software; The vehicle load classification chart of database (typing of vehicle load grouped data, generated data file, data query) software; Systemic-function (configuration-system parameter, nullify, log off) software.

(3), electric shock transmission induction subsystem

Formed by electric shock transmission inductor, cabinet, low-power consumption electric component, high energy resin glue, the recognition unit of weighing, data detecting unit.

1, the electric shock transmission inductor of weighing is a kind of material that kinetic transformation can be become electric energy after special processing. To make coaxial configuration by metal knitted heart yearn, electric shock material and metal shell. Mainly be to place a highfield to polarize the electric shock material, the order of magnitude is the about 100000V of electric shock material of each millimeters thick. The corona field of unjacked cable also adopts this electric field. Polarization field makes noncrystalline condensate become the form of semi-crystal, has kept again many polymeric pliable and tough characteristics simultaneously. The electric shock material produces electric charge when being subject to mechanical shock or vibration. At atomic layer, putting in order of dipole (hydrogen-fluorine couple) upset, and attempts to make it to recover original state. The result that this dipole is upset is exactly that an electron stream forms. Just as the water in the sponge, when you pushed a wet sponge, water can flow out from sponge, and when you unclamped, water is sucked back going again, and this is quite similar with electric shock transmission inductor. When having pressure to be applied on the electric shock transmission inductor, just produced electric charge (voltage), and when removing load, will produce the signal of an opposite polarity. The voltage that it produces can be quite high, but the electric current that electric shock transmission inductor produces is smaller. The detection principle of electric shock transmission inductor is exactly through out-of-date Information Monitoring, namely in tire Information Monitoring during through electric shock transmission inductor at vehicle. Induction coil can only demonstrate a large metal object and pass through coil, and the limited characteristic information of vehicle can only be provided. And electric shock transmission inductor detects the tire through electric shock transmission inductor, produces one be applied to electric shock transmission inductor on the analog signal that is directly proportional of pressure, and the cycle of exporting is identical with the time that tire rests on the electric shock transmission inductor. When a tire process electric shock transmission inductor, electric shock transmission inductor will produce a new electronic impulse. Weigh the under steam detection principle of (WIM) of electric shock transmission inductor is signal integration to stressed generation. Electric shock transmission inductor adopts the alternating expression type, and it is the above electric shock transmission inductor of 1.8M that two length are installed in each track. The distance of two electric shock transmission inductors is that 3.5M is for detection of the appearance of vehicle and measurement length. The flat braiding silver-plated copper of technical parameter: heart yearn: 16AWG heart yearn; Electric shock material: polarized piezoelectric polymer coating P (VDF-TrFE); Oversheath 0.4mm brass tube; Appearance and size: 6.6mm is wide * and 1.6mm is thick; Insulaion resistance between heart yearn and screen layer:＞500Mohm; Electric shock constant:＞20pC/N (nominal value); Passive signal cable: adopt the outer sheath of underground/direct-burried, the outside diameter of cable is 4.75mm, and rated capacity is 89pF/m; Mounting bracket: every 150mm joins 1 support; The output uniformity: the output uniformity of sensor length direction be ± 7% when being used for dynamic weighing (WIM), is used for other purposes, such as vehicle classification statistics, vehicle-speed monitoring, to make a dash across the red light when taking pictures etc. be ± 10%; Operating temperature range :-40 ℃-80 ℃; Temperature control: 0.2%/℃ (depending on envelope filling material).

2, the built-in central processing unit of cabinet, cable connector, data converter, arrester, demodulator.

3, the low-power consumption electric component receives the signal of electric shock transmission inductor as input signal.

4, the high energy resin glue is used for installing electric shock transmission inductor.

5, weigh recognition unit and data detecting unit analyzed, calculates, stores, transmitted, and can accurately detect the data of every vehicle input signal, as, by information such as time, license plate number, vehicle, car owner's title, approval weight, deadweight, actual pay load, wheelbase, the number of axle, length over ends of body, track, type, the speed of a motor vehicle. And can process according to the difference setting.

(4), induction subsystem

Comprise two parts of signal processor and magnetic test coil.

Adopted advanced digital-to-analogue conversion technology, by electromagnetic induction principle, detected and the counting traffick to the 180KHZ induction range at 30KHZ. Technical parameter: counting error: 1 * 10^-6 Alternating current-direct current: 12-20V+50HZ; Induction range: 30KHZ-180KHZ; Output signal: level signal during induction, pulse signal when leaving; The RS-485 interface; Magnetic test coil adopts the single core copper of 1mm core BVC plastic cord, and length 100mm evenly is wound in the wire casing, and draw with the two-wire coiling in the exit, all good with the epoxy resin sealed cans in the groove; Technical parameter: wire: 1mm * 100m; Coil resistance is less than 4 Ω; Area coil: 2.5m * 1.5m; Coil insulation against ground resistance: 10M Ω.

(5), capture subsystem

Formed by video camera, picture and text recognition unit, cable, machine box. It is supplementary means. When the vehicle without electronic cards passed through, this system started automatically, took license plate number and headstock, judged approval weight with difference, deadweight.

(6), overload recognition subsystem, database subsystem, transmission subsystem

The overload recognition subsystem is comprehensive identification, computing, evaluation, record, transmission system, and it can gather, classifies, compares, draw correct conclusion with various effective information. Clearly prompting is that car overload, and overload how much, should how to punish. The database subset transmission subsystem of unifying mainly is information classification keeping, storage to gathering, and transmission can be deposited the information of 400,000 cars simultaneously.

(7), overload identification detection method

Be utilize computer, microwave read-write subsystem, electric shock transmission induction subsystem, feel subsystem, capture subsystem, overload recognition subsystem, database subsystem, transmission subsystem to the dynamic mobility car overload automatically identify detection, for strict law enforcement provides scientific basis. It is characterized in that may further comprise the steps: 1) with the microwave electronic chip according to different requirements and managerial needs be packaged into beautiful, attractive in appearance, indicate obvious electronic cards; 2) with first the sailing and individualized of electronic cards, write following several groups of data messages in the electronic cards by traffic control department or authorities: the international lifelong coding of vehicle, car owner's title, license plate number, Motor Number, Vehicle Identify Number, vehicle, vehicle color, approval weight, light weight, Vehicle length, the vehicle number of axle, cognizance code; 3) initialize and personalized electronic cards is issued the car owner together with car plate (that has registered the license handles in the lump in annual examination or when handling visitor, shipping operation formality), as the register one's residence electronic license plate of authentication of vehicle; 4) electronic cards is installed on the front windshield glass of car top. Electronic cards is being initialized and when individualized, also will carry out the test key encryption to information more than two groups, the information after then will encrypting writes in the electronic cards in the lump. According to fixed and portable different, its usage is also different. Locate to arrange automatically identification detection system of fixed dynamic mobility car overload at major trunk roads, inspection post, bridge critical point etc., in the situation of not stopping, passing visitor, goods stock are checked the overload situation one by one; Quick-searching auxiliary unit and overload recognition subsystem utilize microwave signal immediately to read data in the electronic cards on tested passing visitor, the goods stock by detecting unit, be sent to component computer, component computer is processed data, determines clearance, the vehicle of capturing or stop; At the examination car automatically identification detection system of portable dynamic mobility car overload is set, electric shock transmission inductor can be positioned in the high-performance rubber pad, tiling is located at the highway section that will check, vehicular traffic is carried out the man-machine casual inspection that combines, quick-searching auxiliary unit and overload recognition subsystem utilize microwave signal immediately to read data in the electronic cards on tested visitor, the goods stock by detecting unit, be sent to component computer, component computer is processed data, determines clearance, the vehicle of capturing or stop. Transmission means can adopt the radio modem online. Two, present embodiment operation principle (seeing accompanying drawing 2)

(1), the formation of electronic cards

Write in electronic cards by traffic administration institute, traffic control department province ,city and area applying electronic card card sending system:

1, " the electronic cards sequence index numbering " of 4 bytes (tentative is 4 bytes) (being placed in rear 4 byte user cog regions of 10 byte-identifier symbol cog regions)

2, the disposable identifier cog region that reads 10 bytes of read/write detecting unit and quick-searching auxiliary unit, the electronic cards of reading first 6 bytes unique numbering of dispatching from the factory is read the electronic cards sequence index numbering of 4 bytes again.

3, write ' the international lifelong coding of vehicle ' information of the most critical of Sign Board in the 256 byte RAM districts in the electronic cards, write again the information such as vehicle car owner title, license plate number, Motor Number, Vehicle Identify Number, vehicle, vehicle color, approval weight, light weight, Vehicle length, the vehicle number of axle, cognizance code.

4, " the international lifelong coding of vehicle ", " car owner's title ", four main informations of " license plate number " " approval weight " need to carry out the test key encryption, make it to accomplish to forge.

5, the reading of the various information of monitoring programme (COS) strict control of depositing in 8 MCU in the chip and the ROM district maybe can not be read, and writes maybe and can not write, and changes maybe and can not change, and guaranteed the security of reading change and storing of electronic cards information.

6, the user RAM district of the 256 bytes memory space of remaining 122 bytes still in the chip is required as develop in the future, and accident is recorded and the purposes such as stored value card such as vehicle.

7, initialize and individualized after electronic cards issue the car owner together with car plate (that has registered the license handles in the lump in annual examination or when handling visitor, shipping operation formality), as the vehicle vehicle electric car plate that authentication can not forge of registering one's residence.

(2), the installation of electronic cards

1, (about 80 * 50m) should be installed in top in the headstock windshield to electronic cards, and card is not from car, and car is not from card.

2, electronic cards application organic solvent welds electronic cards and is integrated with windshield.

3, the electronic cards surface is printed on relevant section pattern and correlating markings by traffic control department regulation.

4, be the security that guarantees electronic cards, after the formal startup of system engineering, data self-destruction terminal can be set in chip, the memory data when namely meeting destruction or taking electronic cards away by force in the card can disappear automatically.

(3), traffic control department vehicle administration office electronic cards card sending system, electronic cards read/write detecting unit and quick-searching auxiliary unit be equipped with so as in time to process hair fastener, look into card, bad card processes, loses that card is put on record, professional item such as vehicle year check card etc.

(4), the vehicle dynamic overload detects automatically has dual mode to carry out. A kind of is fixed detection: namely locate to set fixed test point at major trunk roads, inspection post, bridge critical point etc.; Fixed test point dispose component computer (major-minor), microwave read-write subsystem, electric shock transmission induction subsystem, feel subsystem, capture subsystem, the equipment such as overload recognition subsystem, database subsystem, transmission subsystem. Another kind is portable test point, at the examination car automatically identification detection system of portable dynamic mobility car overload is set, electric shock transmission inductor can be positioned in the high-performance rubber pad, tiling is located at the highway section that will check, vehicular traffic is carried out the man-machine casual inspection that combines, quick-searching auxiliary unit and overload recognition subsystem utilize microwave signal immediately to read data in the electronic cards on tested visitor, the goods stock by detecting unit, be sent to component computer, component computer is processed data, determines clearance, the vehicle of capturing or stop. Transmission means can adopt radio modem.

(5), during the detected electrons card information, can be in distance antenna 15M scope, detect speed per hour in an angle of 90 degrees and be 100 kilometers vehicular traffic, can detect the electronic cards information of 20 cars simultaneously.

(6) fixed detection mode

1, feels subsystem and in time will be sent to component computer by the signals of vehicles of certain lane detection section, in order to determine the at a time quantity of section vehicular traffic, prevent without the vehicle of electronic cards undetected.

2, the quick-searching auxiliary unit of microwave read-write subsystem reads the 10 byte-identifiers symbol ID district in the vehicle electrical subcard at once, reads first unique numbering of the electronic cards chip of 6 bytes, reads the vehicle index numbering of 4 bytes again, and information is sent to component computer.

3, " auxiliary unit " continues ' the international lifelong coding of vehicle ' in the read electric the core of the card sheet.

4, " auxiliary unit " at first compares original encryption test key of ' the international lifelong coding of vehicle ' with new checking test key. Be about to ' the international lifelong coding of vehicle ' again with unique numbering of dispatching from the factory of 6 bytes of the chip that has read, the new test key after drawing by the SHF AES with 8 bytes " machine station key " is again compared.

5, conform to such as comparison result, " the international lifelong coding of vehicle ", " car owner's title ", four main informations of " license plate number " " approval weight " in the electronic cards are presented at host display.

6, when vehicle was pressed electric shock transmission inductor, weigh recognition unit and data detecting unit are compared, analyze, calculate, store, are transmitted, and can accurately detect the data of every vehicle input signal, as; By information such as time, license plate number, vehicle, car owner's title, approval weight, deadweight, actual pay load, wheelbase, the number of axle, length over ends of body, track, type, the speed of a motor vehicle. And can process according to the difference setting.

7, through after comparing, analyze, calculate with four main informations of electronic cards, be about to reach component computer " overloaded vehicle database " storage by information such as time, license plate number, vehicle, car owner's title, approval weight, deadweight, actual pay load, excess weights. Vehicle is let pass and is passed through.

8, " the overloaded vehicle database " in the component computer deposited is statistics and data by overload of vehicle. By Traffic Administration Bureau of the Ministry of Public Security on time by network to the each province, the vehicle administration office, city propagates, can automatic torque-increasing through authorizing, delete, rewrite. The foundation that overloads as regularly punishment according to this in each province, vehicle administration office, city.

9, to the vehicle without electronic cards, capturing subsystem is filmed car plate, headstock, from the vehicle load classification chart of database, search the information such as approval weight, deadweight, and with the actual pay load analysis, compare, make the judgement that whether overloads, as belonging to overload, will be transferred to for information about inspection post, the place ahead, with sound and light alarm, inspection post, the place ahead can with print for information about and interception car punish. As belong to the overloading free vehicle then by letting pass behind the Determination.

10, the component computer of fixed test point is a terminating machine as province, vehicle administration office, city LAN, the overloaded vehicle data of download being encrypted by vehicle administration office's main frame by wire line MODEM and data to the component computer of fixed test point in, foundation ' overloaded vehicle database '.

11, such as comparison result, judge detected overload of vehicle, then the component computer automatic banister of ordering to be arranged on from 300 meters of lane detection section is carried out the processing of stopping.

12, need be inquired about the more information of this car by the vehicle such as the law enfrocement official that are stopped, can call relevant other information of vehicle administration office, national each province and city database by Traffic Administration Bureau's wide area network server with the computer of another networking, in order to deal with.

13, as at one time, the number information of the vehicle that ground sense subsystem is sent is consistent with the electronic cards information that auxiliary unit detects, then prove electronic cards all is housed on the vehicular traffic, be not inconsistent such as number, then prove and do not fill electronic cards on some vehicular traffic, for without the electronic cards vehicle, component computer is namely ordered to start and is captured subsystem and automatically identify and process.

(7), portable detection mode

Portable detection mode must just can obtain preferably effect in conjunction with fixed detection mode, and on some meaning, movable type may also can obtain better effect with machine testing. Be equipped with read/write detecting unit and quick-searching auxiliary unit, hand-held computer, radio modem, power inverter etc. on the examination car, and have the special messenger to be responsible for. Carry out man-machine combination and detect, have the overload of vehicle database in the hand-held computer, can download in advance, also can pass through in real time download of radio modem or real-time additions and deletions, change. The main flow vehicle of portable detection also carries out with machine testing stop vehicle; Testing result is except being drawn the judgement by machine, also observation, the analysis by the people draws judgement, as the inspection personnel find from the information datas such as " the international lifelong coding of vehicle ", " vehicle ", " license plate number " that obtain in certain car electronic cards, " approval weight ", " deadweight " with actual observation to the information such as " vehicle ", " license plate number ", " approval weight ", " deadweight ", " actual pay load " be not inconsistent, the car of can stopping is done further query processing, the onboard system computer also can be rented the GSM channel by the radio modem mode and connect with Traffic Administration Bureau's Wide Area Network, to stopping vehicle when check, and can pass through vehicle relevant department data and the data of Traffic Administration Bureau Wide Area Network server investigation each province, vehicle administration office, city database. Three, the safety Design of present embodiment vehicle electrical subcard, detection system

The security of detection system relates to electronic cards chip, read/write detecting unit, component computer, card sending system and Internet Transmission.

(1), special requirement safe be the electronic cards chip, existing following several measures are guaranteed:

1, chip structure is with the ROM district of 8 MCU and 4K byte. In security management mechanism by MCU and the ROM district effectively in the strict control store of monitoring programme (COS) district the readable of data maybe can not read, write maybe and can not write, change maybe and can not change.

2, unique chip number that dispatches from the factory is deposited in 6 ID districts that byte can not be rewritten, and has guaranteed the uniqueness more than 1/4300000000th.

3, ' the international lifelong coding of vehicle ' of 26 bytes of reservation with " the unique numbering of chip " of 6 bytes, adds that " the machine station key " of 8 bytes draws 6 byte test keys of a high security by irreversible secret test key function SHF algorithm. Because secret test key function is an one-way function, namely known x asks y=f (x) to be easy to, and known y asks x then can not estimate conversely, has guaranteed its irreversibility. Secret test key function also has good randomness, such as the input full 0, exports non-full 0, and O and 1 number approach in the output; Input entirely 1, export non-entirely 1, and 0 and 1 number approaches in the output; Change arbitrarily in the input 1, the variation figure place of output will reach about half of total bit. Because irreversibility and randomness, it almost is impossible that test key is forged in attempt. Facts have proved that secret test key function calculation produces a test key and only needs 3.3ms, and total procedure quantity is less than the 1K byte.

(2), read/write detecting unit and security of system will combine with the strict control system of traffic control business department. System's operational administrative mandate and authorization on duty are arranged. If transmission data encipher need to be transferred in the Sign Board chip with the ciphertext form, can in the read/write detecting unit, add hardware form " encrypted master IC ". As have based on asymmetric arithmetic, 16 CPU, 1100 encrypt association for algorithm processes, write/erasing time is 1.8-3.6ms, model is the encrypted master of SLE66CX80S. Also can use rolling code encrypting is transferred in the Sign Board chip after with data encryption, the rolling code encrypting method has can encrypt Arbitrary Digit with an information, irreversible, add one to one (solution) dense key, key can be from four to tens to characteristics such as hundreds of positions.

(3), the security of card sending system will combine with management system and the management system of traffic control business department especially. The method that strict implementation supervisor authority qualifying authorization conditions each other.

(4), the security of Internet Transmission operates according to the real network of traffic control department and the safety standard of localized network basically. Emphasize the empowerment management of Internet Transmission, the encryption handling of critical data and three grades of dynamic key managements.

(5), system microcomputer is with the network interface of traffic control business department, be connected by normalized Internet Transmission standard and interface standard. Four, the expanded function of detection system and method is identified in the overload of present embodiment dynamic mobility car automatically

The native system expanded function is strong, can be on this platform, and the functions such as striking machine motor vehicle hypervelocity, motor vehicle are stolen and robbed, motor vehicle violation, traffic accident, accident are escaped and hided, stored value card, highway non-parking charge, important department non-stop gate management.

Table one has been listed the resource of present embodiment vehicle electric the core of the card sheet storing information and has been distributed.

Table two has been listed the situation of the identifier cog region of 10 bytes in the electronic cards chip.

Table one: the resource of electronic cards chip storing information is distributed

Numbering	Name of the information	Data mode	Byte number	The address	Other
							1	The international lifelong coding test key tail tag will of head will vehicle	Fixing fixing arbitrarily	1B     26B     6B     1B	00H     01-18H     19-1CH     1DH	The M Chinese character is less than five. English less than five. Numeral is calculated and is produced K
2	Car owner's title test key	Numerical value is any	10B     6B	1E-27H     28-2DH	Packed BCD code (true length: 20 characters) calculate generation
						3	The license plate number test key	Arbitrarily	10B     6B	2E-37H     38-3DH	Forming calculating by Chinese character, English, numeral produces
4	Motor Number	ASCII	21B	3E-52H	By 21 English, numeral forms
						5	Vehicle Identify Number	Arbitrarily	23B	53-69H	By 21 Chinese characters, English, numeral forms
6	The identification code name	Arbitrarily	17B	6A-7AH	Any character
						7	Vehicle	Chinese character	10B	7B-84H	1-5 Chinese character
8	The approval weight test key	Chinese character	10B	15B-96H	1-5 Chinese character
						9	Deadweight	Chinese character	10B	22B-106H	1-5 Chinese character
10	Remaining space	Arbitrarily	102B	116-FFH	Can give over to one card for multiple uses according to development need

Table two: the identifier cog region of 10 bytes in the electronic cards chip

Claims (10)

1, detection system and method are identified in a kind of dynamic mobility car overload automatically, are to utilize microwave automatic identification technology and the integrated system and method for electric shock transmission induction technology. The real scheme of seeing above-mentioned purpose comprises: computer, microwave read-write subsystem, electric shock transmission induction subsystem, feel subsystem, capture subsystem, overload recognition subsystem, database subsystem, transmission subsystem and automatically identify detection method.

2, microwave read-write subsystem it include microprocessor CPU, read only memory ROM, dynamic memory RAM, microwave transmitter, microwave receiver, wakeup time device, identifier cog region; The unique numbering of dispatching from the factory of a chip is arranged in the identifier cog region of each electronic cards; Store among the described dynamic memory RAM: the international lifelong coding of vehicle, car owner's title, license plate number, Motor Number, Vehicle Identify Number, vehicle, vehicle color, approval weight, light weight, Vehicle length, the vehicle number of axle, cognizance code; Store the COS of management of software ic system in the described read only memory ROM, i.e. monitoring programme is managed reading or can not reading and writing maybe can not writing, change maybe and can not change of information among the above-mentioned dynamic memory RAM; Microwave transmitter, receiver are used for being connected with external device, data writing or read data in the electronic cards in the electronic cards; The wakeup time device is used for " dormancy " and duty conversion of control electronic cards; Microwave transmitter, the used frequency of receiver are one of following three frequency ranges: 824-960MHZ, 2.45GHZ, 5.8GHZ.

3, described vehicle electrical subcard is characterized in that: be provided with data self-destruction terminal in the electronic cards, when meeting destruction or being taken away by force, the storage data disappear automatically.

4, the vehicle electrical subcard detects and to comprise read-write detecting unit, quick-searching auxiliary unit, wherein reads and writes detecting unit and is used for sending data and receiving answer signal from electronic cards to electronic cards, and it comprises, and the digital circuit mould is fast, microwave circuit module and antenna; The digital circuit module comprises again control section and data demodulation part, and microwave circuit module modulate emission is to the data of electronic cards, and the backscattering wave that provides a continuous carrier to be used for electronic cards receives to conciliate and transfers from the backscattering wave signal of electronic cards; The quick-searching auxiliary unit mainly is comprised of single-chip microprocessor MCU, and it links to each other with the read-write detecting unit, and the data analysis that the read-write detecting unit reads in is processed; The microwave circuit module is variable-frequency.

5, electronic cards is being initialized and when individualized, also following four kinds of information are being carried out the test key encryption, the information after then will encrypting writes in the electronic cards in the lump, the international lifelong coding of vehicle, car owner's title, license plate number, approval weight. The formation of electronic cards may further comprise the steps: 1) with the microwave electronic chip according to different requirements and managerial needs be packaged into beautiful, attractive in appearance, indicate obvious electronic cards; 2) with electronic cards initialization and individualized, write following data message by traffic control department or authorities in electronic cards: the vehicle world is coding, car owner's title, license plate number, Motor Number, Vehicle Identify Number, vehicle, vehicle color, approval weight, light weight, Vehicle length, the vehicle number of axle, cognizance code all the life; 3) initialize and personalized electronic cards is issued the car owner together with car plate (that has registered the license handles in the lump in annual examination or when handling visitor, shipping operation formality), as the register one's residence electronic license plate of authentication of vehicle; 4) electronic cards is installed on the front windshield glass of car top.

6, vehicle electrical subcard detection system, with read-write being connected of detecting unit, by the quick-searching auxiliary unit by component computer, adopt the high speed dual port RAM to transmit data with parallel mode between the single-chip microprocessor MCU in it and the quick-searching auxiliary unit, and can gather, store, compare, analyze, process in the vehicle electrical subcard for information about; It also by Traffic Administration Bureau of network connection Ministry of Public Security each province, city's vehicle management LAN upload, deposit, download various vehicle specific informations; Wherein also be provided with ' overloaded vehicle database ' ' vehicle load database '; Can send various instructions by testing result.

7, described electric shock transmission induction subsystem is comprised of electric shock transmission inductor, cabinet, low-power consumption electric component, high energy resin glue, the recognition unit of weighing, data detecting unit. Its electric shock transmission inductor of weighing is a kind of material that kinetic transformation can be become electric energy after special processing. To make coaxial configuration by metal knitted heart yearn, electric shock material and metal shell. Mainly be to place a highfield to polarize the electric shock material, the order of magnitude is the about 100000V of electric shock material of each millimeters thick. Polarization field makes noncrystalline condensate become the form of semi-crystal, has kept again many polymeric pliable and tough characteristics simultaneously. The electric shock material produces electric charge when being subject to mechanical shock or vibration. At atomic layer, putting in order of dipole (hydrogen-fluorine couple) upset, and attempts to make it to recover original state. The result that this dipole is upset is exactly that an electron stream forms. When having pressure to be applied on the electric shock transmission inductor, just produced electric charge (voltage), and when removing load, will produce the signal of an opposite polarity. The voltage that it produces can be quite high, but the electric current that electric shock transmission inductor produces is smaller. The detection principle of electric shock transmission inductor is exactly through out-of-date Information Monitoring, namely in tire Information Monitoring during through electric shock transmission inductor at vehicle. Electric shock transmission inductor detects the tire through electric shock transmission inductor, produces one be applied to electric shock transmission inductor on the analog signal that is directly proportional of pressure, and the cycle of exporting is identical with the time that tire rests on the electric shock transmission inductor. When a tire process electric shock transmission inductor, electric shock transmission inductor will produce a new electronic impulse. Weigh the under steam detection principle of (WIM) of electric shock transmission inductor is signal integration to stressed generation. Electric shock transmission inductor adopts the alternating expression type, and it is the above electric shock transmission inductor of 1.8M that two length are installed in each track. The distance of two electric shock transmission inductors is that 3.5M is for detection of the appearance of vehicle and measurement length; The precision that usually can guarantee is ± 10%, and individual other can reach 1-2%. Velocity interval can be from 5 kilometers/hour to 120 kilometers/hour. The weight lower limit is bicycle, and the upper limit can according to computer software and capacitor adjustment, can reach 120 tons.

8, weigh recognition unit and data detecting unit analyzed, calculates, stores, transmitted, and can accurately detect the data of every vehicle input signal, as, by information such as time, license plate number, vehicle, car owner's title, approval weight, deadweight, actual pay load, wheelbase, the number of axle, length over ends of body, track, type, the speed of a motor vehicle. And can process according to the difference setting.

9, described fixed detection mode is; Equipment is arranged at main road junction, about 300 meters, the place ahead, charge observation station. Comprise in the system computer, microwave read-write subsystem, electric shock transmission induction subsystem, feel subsystem, capture subsystem, overload recognition subsystem, database subsystem, transmission subsystem and automatically identify detection method. Ground sense subsystem and electric shock transmission induction subsystem activate the work of microwave read-write subsystem, the information in the read electric card by external applied pressure; Electric shock transmission induction subsystem is converted into analog signal with the electric charge that pressure produces, and measures the gross weight information by vehicle; Two groups of information exchanges are crossed computing, overload recognition subsystem, the analysis of database subsystem, the comparison of computer, and the information such as the time of passing through by vehicle, license plate number, vehicle, car owner's title, approval weight, deadweight, actual pay load, excess weight, punishment content are shown fast; Overloaded vehicle is carried out sound and light alarm, and will be transferred to for information about inspection post, the place ahead, can carry out the data record to local car (electronic cards is arranged), be transferred to local traffic management office, for preventing that road congestion from can carry out per month or per season is concentrated punishment; To the vehicle without electronic cards, capturing subsystem is filmed car plate, headstock, from the vehicle load classification chart of database, search the information such as approval weight, deadweight, and with the actual pay load analysis, compare, make the judgement that whether overloads, as belonging to overload, will be transferred to for information about inspection post, the place ahead, with sound and light alarm, inspection post, the place ahead can with print for information about and interception car punish. As belong to the overloading free vehicle and then let pass and pass through.

10, the computer of described movable type can be selected Vehicle mounted station formula machine or portable notebook computer. Electric shock transmission inductor can be positioned in the high-performance rubber pad, and tiling is located at the highway section that will check, and other subsystems can be placed in the examination car, and vehicular traffic is carried out motor-driven examination, and transmission means can adopt the radio modem online.

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