WO2009036670A1

WO2009036670A1 - Automobile monitoring system based on electronic identification

Info

Publication number: WO2009036670A1
Application number: PCT/CN2008/071758
Authority: WO
Inventors: Hong Chen; Ping Shen
Original assignee: Hong Chen; Ping Shen
Priority date: 2007-09-17
Filing date: 2008-07-25
Publication date: 2009-03-26
Also published as: CN101127660A; CN100566273C

Abstract

An automobile monitoring system based on electronic identification, comprises electronic driving licenses, checking points, a remote monitoring center, wherein the electronic driving license is fixed in a vehicle, and comprises a driving license control unit, a wireless sensor RF module connected to the control unit, and a programmable logic device connected to the control unit for hardware encrypting; the checking point can be placed in the city road and highway checking point, the wireless sensor RF module is used for receiving the identification information sent by the electronic driving license, the programmable logic device is used for decrypting the secret message sent by the electronic driving license, the remote transmitting unit is connected to the data end of a checking point control unit, and the identification information sent by the electronic driving license is transmitted to the remote monitoring center via the remote transmitting unit; the remote monitoring center comprises a database management system, a remote monitoring system, the database management system stores vehicle identification information, the remote monitoring system receives the information from a checking point in real-time mode and feeds the processing result back to the checking point.

Description

Vehicle identification system based on electronic identification

Technical field

The present invention relates to an identification system, and more particularly to an electronic identification system for use in a car, which belongs to the field of public safety technology.

Background technique

With the rapid development of economic construction, China's national strength has rapidly increased, people's living standards have been continuously improved, material life has been continuously enriched, and the share of vehicles in the whole society has also been greatly improved. It has been flourishing and prosperous. However, there have also been some discordant phenomena, such as vehicle theft, smuggling of road tolls, highways to avoid charges or less fees, vehicle decks, etc., violations of laws and regulations have occurred, making the country, enterprises and Individuals suffer huge losses. At present, for some phenomena that have occurred, the current monitoring and management methods for vehicles at all levels of supervision and law enforcement are generally carried out by monitoring law enforcement personnel for manual verification. Obviously, such a working model is difficult to adapt to mass vehicle monitoring; these regulatory agencies are currently in the process of monitoring law enforcement. The biggest difficulty is that it is difficult to have an effective means (or technology) to automatically, accurately and quickly identify a large number of inspected objects, and only by manual means of vehicle inspection and identification, thus giving illegal Molecules can take advantage of the opportunities, such as: the license plate (deck) of other vehicles, the evasion of various fees, illegal transportation vehicles, illegal operation of buses, illegal operation of taxis, etc., all kinds of illegal operations adopted by the above-mentioned criminals. Analysis with illegal means, it can be seen that these means are to avoid the inspection by replacing or forging license plates (decks) or driving licenses. At the same time, due to the large number of vehicles, the monitoring law enforcement department does not have an automatic inspection and identification. Means, this is the crux of the problem.

Summary of the invention

The technical solution adopted by the present invention to solve the technical problems thereof is: for the above-mentioned prior art, the unscrupulous elements in the prior art can easily cause losses to the state, enterprises and individuals by replacing or forging license plates or driving licenses to evade various inspections. A vehicle supervision system based on electronic identification is provided. The system consists of an electronic driving license installed in the car, installed at the city traffic main entrance, the security check bayonet, the highway entrance/exit, and the fixed checkpoint at the entrance to the city. It is equipped for traffic police and various inspectors. Hand-held inspector, that is, mobile checkpoint, and remote monitoring center. Each fixed checkpoint mobile checkpoint can check the legality of the electronic driving license installed in the vehicle in real time, and can be remotely monitored. The control center communicates to determine the legality of the vehicle.

The technical solution adopted by the present invention to solve the technical problem is: a vehicle supervision system based on electronic identification, the system includes an electronic driving license, a fixed checkpoint, a mobile checkpoint, a remote monitoring center, and an electronic driving license is installed in the vehicle. Including the driving license control unit and the wireless module connected to the control unit, the programmable logic device for hardware encryption connected to the control unit; the checkpoint can be set at the road inspection gate, and the checkpoint includes a checkpoint control unit, a wireless module, The programming logic device, the remote transmission unit, the storage unit, the database, the wireless module and the checkpoint control unit data terminal are connected, and are used for receiving the identification information sent by the electronic driving license, and the programmable logic device is connected with the data terminal of the checkpoint control unit, For decrypting the ciphertext sent by the electronic driving license, the remote transmission unit is connected with the data end of the checkpoint control unit, and the identification information sent by the electronic driving license can be legally identified by using a local database, or can be transmitted to the remote transmission unit. Remote supervision The control center performs remote identification; the remote monitoring center includes a database management system and a remote monitoring system. The database management system stores vehicle identification information, and the remote monitoring system receives the information sent by the checkpoint in real time, and feeds the processing result back to the checkpoint.

The technical solution adopted by the present invention to solve the technical problem thereof further includes:

The system further includes a mobile detection point for real-time, mobile inspection to identify the suspected vehicle, and receiving the suspected illegal vehicle information sent by the remote monitoring center, the detection point is composed of a PDA/high-end mobile phone and a wireless module, for each inspection Post law enforcement staff. The mobile detection point is composed of a PDA or a mobile phone plus a wireless module and a programmable logic device, and the wireless module can communicate with the vehicle electronic driving license wireless module in real time, and the detected data is transmitted to the handheld mobile detection point through the interface to realize the vehicle. Check the screening function. When the mobile detection point cannot be identified, it can also be transmitted to the remote monitoring center through the remote transmission unit for remote identification.

The suspected illegal vehicle information is divided into real-time detection information and basic vehicle information, and the real-time detection information includes checkpoint location information, suspected illegal vehicle state, and detected time; basic vehicle information includes vehicle type, engine number, license plate number, owner, and driving Basic information such as certificate number and annual inspection photos.

The remote monitoring center can query, display, and print detailed information of the vehicle, and dynamically publish suspected illegal vehicle information.

The electronic driving license for the detected vehicle information is first encrypted by a software encryption algorithm, and then the hardware convolution circuit is implemented by the programmable logic device to convolve the ciphertext after the software encryption; the checkpoint is decoded by Viterbi. The convolutional ciphertext is translated in the programming logic, and then the software decryption algorithm The ciphertext is decrypted into plaintext.

The software encryption algorithm uses an AES encryption algorithm.

The remote monitoring center further includes a communication service system, a GIS, a large-screen display system, a UPS system, a data connection between the communication service system and the remote monitoring center, and communicates with other handheld terminals, and the UPS system provides backup for the remote monitoring center. Power, GIS and large-screen display systems are connected to the data center of the remote monitoring center to assist law enforcement officers in finding illegal vehicle information.

The communication between the electronic driving license and the checkpoint may adopt the IEEE802.15.4 protocol and the Zigbee protocol, or use the Wi-Fi protocol, the Bluetooth protocol, the UWB protocol, the NFC protocol, the RFID protocol, and the SimpliciTI protocol.

The electronic driving license and the checkpoint communicate using the IEEE802.15.4 protocol and the Zigbee communication protocol. The electronic driving license uses a simplified Zigbee node, and the checkpoint uses a full-featured Zigbee node.

The data format sent in the electronic driving license is a license plate, a random variable, and a installation place.

The electronic driving license is provided with a vehicle identification, the vehicle identification includes a license plate number and a random variable, and the random variable includes a random variable 1 that can be updated by the remote monitoring center, a random variable 2, a license plate number, a random variable, and a random variable 2 After being encrypted, the wireless sensor RF module transmits the electronic driving license and updates the random variable 1 and the random variable 2 in the electronic driving license in real time.

The invention has the beneficial effects that: the invention can effectively solve the defects in the various types of inspection and supervision of the existing vehicles by replacing or forging license plates or driving licenses, and ensuring the software and hardware encryption algorithms in the electronic driving license to ensure the defects. One car and one card, to prevent application. Moreover, it can cooperate with the database stored in the remote control center to realize automatic reconnaissance and automatic alarm. Its working mode is effective and feasible, which can greatly improve the reliability and accuracy of vehicle supervision and inspection.

The invention will be further described with reference to the drawings and specific embodiments.

DRAWINGS

Figure 1 is a block diagram showing the structure of the system of the present invention.

2 is a block diagram showing the structure of an electronic driving license circuit in the present invention.

FIG. 3 is a schematic diagram of an electronic driving license circuit according to the present invention.

4 is a flow chart of a program for data transmission in the present invention.

FIG. 5 is a block diagram showing the structure of a checkpoint circuit in the present invention.

Figure 6 is a schematic diagram of a checkpoint circuit in the present invention. FIG. 7 is a schematic diagram of communication between a checkpoint and a PC according to the present invention.

Figure 8 is a flow chart showing the procedure of data reception in the present invention.

FIG. 9 is a schematic diagram showing the topological relationship between the electronic driving license and the checkpoint according to the present invention.

FIG. 10 is a schematic diagram of an encryption process of an electronic driving license terminal according to the present invention.

Figure 11 is a schematic diagram of the decryption process of the check end of the present invention.

Figure 12 is a block diagram showing the connection between the wireless module and the PDA through the USB interface in the mobile checkpoint of the present invention. FIG. 13 is a circuit diagram of a wireless module and a PDA connected through a USB interface in a mobile checkpoint according to the present invention. Figure 14 is a block diagram showing the connection between the wireless module and the PDA through the RS232 interface in the mobile checkpoint of the present invention. Figure 15 is a circuit diagram showing the connection between the wireless module and the PDA through the RS232 interface in the mobile checkpoint of the present invention. Figure 16 is a circuit diagram of a wireless module in a mobile checkpoint of the present invention.

detailed description

The present embodiment is a preferred embodiment of the present invention, and other principles and basic implementation methods are the same as or similar to those of the present embodiment, and are all within the scope of the present invention.

The invention mainly consists of four parts: an electronic driving license, a fixed checkpoint, a mobile checkpoint, and a remote monitoring center.

The electronic driving license is installed in each car as the unique identity of the car. The electronic driving license is connected to the checkpoint via the wireless sensor network (ie WSN), communicates, accepts the check, and waits for the checkpoint command. The indicator light is installed in the electronic driving license. When the vehicle is inspected, the indicator light on the vehicle will flash according to the pre-agreed light signal. If the checkpoint cannot identify the legality of the vehicle locally, the request screening information can be transmitted to the remote control. The center makes further screening, and feeds the result back to the checkpoint, then sends a control command to the vehicle under test, and flashes according to the pre-agreed light signal; if the vehicle does not have an electronic driving license, no signal light flashes, so the law enforcement traffic police is easy to catch The arrest of illegal suspect vehicles has played a role in reducing or curbing the occurrence of illegal traffic incidents, and has provided a modern and automatic means of inspection and identification for public security and vehicle supervision departments at all levels.

The fixed detection point is connected to the remote monitoring center, which can synchronously update the suspected illegal vehicle information in real time, and refresh the suspected illegal vehicle information base of the fixed detection point. The system uses a mechanism of feature variables to update suspected illegal vehicle information. The fixed checkpoint stores information about the suspected illegal vehicles in the city, mainly including the number of suspected illegal vehicles, license plate number, vehicle status (stolen, accidental escape, decking, etc.), date of illegal release of the vehicle, and electronic driving license installation. Point, city code. The structure of the suspected illegal vehicle information base is as follows: Serial number vehicle number license plate number vehicle status release date city code installation point

00000001 768898755543233 Guangdong BX5087 stolen 0755 Shenzhen Nanshan can be installed at the traffic main entrance, security check bayonet, highway exit / entrance, access to the city's road entrance, etc., through the wireless sensor network control node (ie WSN) and installed in The electronic driving license in the car communicates and automatically checks the legality of the passing vehicle. If the checkpoint cannot identify the legality of the vehicle, it can connect with the remote monitoring center via the Internet, send a request screening information to the remote monitoring center, and wait for remote monitoring. The feedback result information of the center is judged after receiving feedback from the remote monitoring center.

The remote monitoring center includes a communication service system, a database management system, and a remote monitoring system. The communication service system has the capability of supporting big data access, and can be composed of a large computer and a high-end router or switch, or a high reliability load balancing based on cluster computing. System; database management system should support distributed computing system with distributed computing capability, in order to realize vehicle information distribution access function; remote monitoring system identifies the request screening information sent by remote inspection node in real time, and feedbacks the processing result to remote checkpoint in real time, and The location information of the checkpoint is sent to the mobile checkpoint of the law enforcement officer at the nearby duty station, so as to timely arrest the suspected illegal vehicle and transmit the information of the illegal suspected vehicle to the relevant regulatory department for further processing. The remote monitoring center also includes encryption and decryption system, GIS, large-screen display system and UPS system. In order to prevent the remote monitoring center from being self-stealed, the database data stored in the remote monitoring center is encrypted and stored by the encryption and decryption system, and is equipped with a UPS system. The remote monitoring center can still work normally when the power is off. The remote monitoring center automatically discriminates the counterfeit and attempted deck vehicles according to the encryption mechanism and the identification algorithm (the encryption mechanism and the recognition algorithm are described in detail later in the monitoring center suspect vehicle identification algorithm), and automatically lists them in the suspected illegal vehicle information base. In the middle, and publish it to each inspection point, the vehicle will be detected illegal by the system, and law enforcement personnel can investigate and deal with it. In addition, the remote monitoring center also has a GIS and large-screen display system to make it easier for investigators to discover illegal vehicle information.

The invention may further comprise a mobile detection point. The mobile detection point is composed of a PDA (or a high-end mobile phone, an industrial PDA) and a wireless module, and is equipped for law enforcement personnel of each inspection post, and can wirelessly connect to the remote monitoring center through a CDMA or GPRS network. Provide communication means for law enforcement personnel. The device receives the suspected illegal vehicle information sent by the remote monitoring center in real time, and the information is composed of the checkpoint location information, the number of suspected illegal vehicles, and the discovery time. Law enforcement officers can use mobile detection points to perform identity detection on vehicles. To verify the legality of the identity of the vehicle. The mobile detection point can perform a synchronous update of the suspected illegal vehicle list through the wireless network. In addition, the mobile detection point can submit the inspected vehicle information to the remote monitoring center for mandatory verification of the vehicle identity, and if the normal vehicle passes the verification and update the random number.

The mobile detection point stores suspected illegal vehicle information. The main recorded suspected illegal vehicle information is the same as the fixed detection point. The data refresh mechanism is the same as the fixed detection point, and can be updated in real time. The data structure is shown in the following table:

The mobile detection point is composed of a PDA or a high-end mobile phone plus a wireless module. The PDA or the high-end mobile phone utilizes the existing PDA and mobile phone functions, and is not a design point of the present invention. In the present invention, only the existing PDA and mobile phone functions are utilized, The structure is not described in detail. The connection between the PDA or the high-end mobile phone and the wireless module is described in detail below with reference to the drawings.

In the present invention, the wireless sensor used in the mobile detection point is connected to the PDA or the high-end mobile phone in two ways, one is to support the USB OTG mode PDA, and the USB mode is used; the other is to use the serial port connection mode.

Referring to FIG. 1, the vehicle electronic driving license communicates with the checkpoint through the wireless network in the present invention. In this embodiment, the wireless network communicates with the checkpoint through the Zigbee protocol, and the checkpoint can pass through the mobile phone network (GPRS/CDMA). Or the metropolitan area network is connected to the Internet, or directly connected to the Internet, and connected to the remote monitoring center and the management center of the vehicle supervision department at all levels through the Internet.

The following will be further explained in conjunction with specific circuits.

Referring to FIG. 2 and FIG. 3, the electronic driving license hardware of the present invention is composed of a wireless transceiver chip U1 and a programmable logic chip U2. In this embodiment, the wireless transceiver chip U1 adopts a Zigbee wireless transceiver chip, and the specific model is CC2430. The wireless transceiver chip Ul (CC2430) internally includes an enhanced 805 MCU and a CC2420 RF transceiver, wherein the CC2420 RF has 128 KB of flash memory, hardware. Support CSMA/CA, there are 4 timers/counters in the module, including a 16-bit timer/counter, two 8-bit timer/counters, one MAC timer/counter, and 2 in this module. Programmable USART module for master/slave SPI or UART data communication operations; enhanced 805 MCIT includes 8KB of RAM, 64KB of program memory, 256 bytes of data memory, 64KB of read/write data memory (ie EEPROM, 4 5 CPU instruction cycles are required for access). Data storage The register storage space available to the user for reading/writing in the memory is 128 bytes. In the specific implementation, the wireless transceiver chip U1 can also be replaced by a common wireless transceiver chip and a minimum system of the single chip microcomputer. In this embodiment, an X0SC_Q1 pin of the wireless transceiver chip U1 and an external oscillator XI are connected between the XOSC_Q2 pins to provide an external oscillation source. A reset button S1 is connected to the RESET_N pin of the wireless transceiver chip U1, and the wireless transceiver chip U1 is connected. The RF_N pin, RF_P pin and TXRX_SWITCH pin are connected to the antenna respectively. The 16 I/O ports of the wireless transceiver chip U1 are respectively connected to the 16 data interfaces AO-A15 of the programmable logic chip U2 through the 16-bit data lines, thereby realizing the data between the wireless transceiver chip U1 and the programmable logic chip U2. transmission. In this embodiment, the programmable logic chip U2 adopts the M4A3-32/32 type chip, and when implemented, other types of programmable logic chips can also be used instead. LEDs are respectively connected to the eight data interfaces on the programmable logic chip U2. When the electronic driving license receives the information of the checkpoint, the LEDs connected to the programmable logic chip U2 can flash in a set manner. In order to facilitate the administrative staff to judge the legality of the corresponding vehicles and the corresponding investigation and punishment. The wireless transceiver chip U1 can wirelessly communicate with the checkpoint, that is, check the checkpoint. The programmable logic chip U2 performs hardware decryption on the signal transmitted from the checkpoint, and then the software is decrypted by the wireless transceiver chip U1, and the decrypted plaintext and the information stored in the electronic driving license are judged. In this embodiment, the 3.3V power supply is provided to the system through the voltage regulator chip U4, and the power supply is input to the voltage regulator chip U4 through the power interface, and the power is supplied to the system by the power supply in the automobile.

In the present invention, the electronic driving license uses wireless communication technology for communication. In this embodiment, Zigbee wireless short-range communication is adopted, and the data exchange of the wireless network node within 100 meters is realized according to the IEEE802.15.4 protocol and the Zigbee protocol. In the specific implementation, other short-distance communication protocols may also be used for communication, such as: Wi-Fi protocol, Bluetooth protocol, UWB protocol, NFC protocol, RFID protocol, SimpliciTI protocol, and the like. The electronic driving license uses a simplified Zigbee node (RFD), the detection point uses a full-featured Zigbee node (FFD), and the wireless sensor network (WSN) uses a star network topology (see Figure 9). When the vehicle of the license enters the wireless sensor network (WSN) communication range (ie within 100 meters), the RFD node in the electronic driving license automatically joins the wireless sensor network FFD (coordinator coordinator) with the checkpoint as the core to realize the electronic driving license. Data exchange between the internal RFD and the checkpoint FFD (coordinator); after the FFD receives the identity unique identifier sent by the RFD in the electronic driving license, the local identification is performed in real time, and the detection point utilizes the local area stored by itself. Vehicle information identifies the legality of the car, and randomly selects a light flashing mode to be inspected The vehicle electronic driving license sends a light flashing command, and the electronic driving license light flashing system sends a light flashing signal according to a specified mode, so that the law enforcement personnel can recognize; if the detecting point cannot be identified, the detecting point uses the remote transmission system to send a screening request message to the remote monitoring. After receiving the request message, the remote monitoring center queries the vehicle information database online, and feeds the screening result to the detection point in real time. The checkpoint then issues a command to the inspected vehicle, and the process is the same as above.

Referring to Figure 5, Figure 6, and Figure 7, the fixed checkpoint hardware of the present invention includes a wireless transceiver chip U5 and a programmable logic chip U6. The wireless transceiver chip U5 also uses the Zigbee wireless transceiver chip corresponding to the electronic driving license. The specific model is also CC2430, and the programmable logic chip U6 uses the M4A3-32/32 type programmable logic chip. The wireless transceiver chip U5 in the checkpoint can communicate wirelessly with the electronic driving license, that is, send an inspection signal to the electronic driving license. The checkpoint includes a programmable logic chip U6 for hardware encryption, and a power module for supplying power to the system. In this embodiment, a 3.3V power supply is provided to the system through the voltage regulator chip U4, and the power is input to the system through the power interface. Press the chip U8. The connection between the wireless transceiver chip U5 and the programmable logic chip U6 is the same as that in the electronic license. In this embodiment, the wireless transceiver chip U5 can perform asynchronous serial communication with the PC, and the asynchronous communication controller chip U7 is used to complete the work, and the asynchronous communication controller chip U7 adopts the MAX232 chip. The interface between the MAX232 chip and the wireless transceiver chip U5 and PC is as follows:

Pl_5 connection T1IN T10UT connection PC interface pin 3

Pl_4 Connect R10UT RUN Connect PC interface pin 2 Pl_3 Connect R20UT R2IN Connect PC interface pin 7 Pl_2 Connect T2IN T20UT Connect PC interface pin 4 Wireless transceiver chip U5 Software encryption of checkpoint transmission information, then by programmable logic The chip U6 is hardware encrypted and then sent to the electronic driving license.

The mobile checkpoint is also included in the present invention. The mobile checkpoint includes a PDA/high-end mobile phone and a wireless module. Referring to FIG. 16, the wireless module uses a wireless sensor RF module. In this embodiment, the wireless sensor RF module adopts the Zigbee protocol. The module mainly includes a 2.4G RF front-end chip CC2591 and a Zigbee wireless transceiver chip CC2430 connected via a serial interface, and a peripheral capacitor resistor. The Zigbee wireless transceiver chip CC2430 is connected to the PDA/high-end mobile phone through a serial interface. According to the data transmission protocol of the PDA/high-end mobile phone, in this embodiment, two wireless transceiver chips are connected with the PDA/high-end mobile phone: one is connected by using a USB interface, please refer to FIG. 12 and FIG. The wireless transceiver chip is directly connected to the USB interface of the PDA through the USB interface device. In this embodiment, the USB interface device adopts PDIUSBD12, and is connected to the wireless transceiver chip CC2430 through the connector CON16, and the USB data terminal of the USB interface device is connected with a mini USB plug. For connecting with PDA/high-end mobile phone; the other is connected by RS232 interface, please refer to Figure 14 and Figure 15, the wireless transceiver chip is directly connected to the PDA through RS232 interface chip MAX3232. In this embodiment, RS232 interface chip Using MAX3232, the RS232 interface chip is connected to the wireless transceiver chip CC2430 through the serial interface for data exchange. The RS232 interface chip is connected with a mini USB plug on another serial interface, and is connected to the PDA/high-end mobile phone through a mini USB plug.

Electronic Driving License Zigbee Network Simplified Node (RFD) and Checkpoint The Zigbee Network Full Function Node (FFD) forms a wireless short-range communication network with a star topology.

In order to ensure the uniqueness of the electronic driving license in the vehicle, that is, an electronic driving license for a vehicle, the identification in the electronic driving license is composed of a license plate and a random variable, and the identification includes a license plate of 8 bytes, a random variable of 16 bytes, and a mounting ground 8 Bytes, a total of 32 bytes, where random variables are dynamically generated by the CPU. The purpose of using random variables is to further enhance the unique legality protection of the vehicle. The process of unique identification of the electronic driving license and the identification algorithm of the monitoring center are as follows:

First, the electronic driving license installation and encryption mechanism

1. The vehicle electronic driving license has been initialized before installation to generate random variables. The random variable consists of two parts, namely random variable 1, random variable 2;

2. After the vehicle is first installed with the electronic driving license, the electronic driving license is powered on, and the new random variable 1 is automatically generated. At the same time, the original random variable 1 and the random variable 2 are combined with the license plate number and the installation information, namely:

License plate number + random variable 1 + random variable 2 + mount point

Interlace encryption is performed and transmitted to the installation checkpoint through the Zigbee wireless network;

3. After the installation checkpoint receives the identity sent by the vehicle, the information is transmitted to the remote monitoring center in real time, and the vehicle information is registered and registered;

4. The remote monitoring center updates the vehicle information database in real time, and sends the vehicle update information to all checkpoints in the city (including the installation checkpoint), and updates the checkpoint vehicle information database. The update content is: license plate number + random variable 1 + Random variable 2 + mount point

5. After the vehicle installation site checkpoint receives the completion of the vehicle registration message of the remote monitoring center, real-time A new random variable 2 is generated, and the information is sent to the vehicle to be inspected, and the random variable 2 of the inspected vehicle is updated in real time. At this point, the electronic driving license is installed and can be shipped. At the same time, the vehicle installation checkpoint sends the newly generated random variable 2 to the remote monitoring center;

6. The remote monitoring center updates the vehicle random variable 2 field in the vehicle information database in real time, and sends the information to all checkpoints in the city to update the vehicle information.

Second, the monitoring center suspect vehicle identification algorithm

7. Each vehicle can be randomly sampled by the remote monitoring center. When the vehicle passes the checkpoint, the electronic driving license of the sampled vehicle generates a new random variable, and transmits its original random variable 1, random variable 2, to the remote monitoring center;

8. The remote monitoring center verifies the update status variable. If the update variable is "true", the remote monitoring center verifies the electronic driving license random variable 2; if the update variable is "false", the remote monitoring center verifies the electronic driving license random variable 1;

9. After verification, the remote monitoring center returns the electronic driving license and judges whether the electronic driving license update is successful. If successful, the update status variable is "true" value, and the electronic driving license random variable 2 is updated; if it fails, the update is updated. The state variable is a "false" value;

10. If the verification fails, the remote monitoring center automatically generates suspect vehicle information and updates the list of suspected vehicles at each checkpoint;

11. The frequency of random sampling can be adjusted by adjusting the value of the sampling period field in the vehicle information database of the remote monitoring center.

In the present invention, the wireless data exchange work process is as follows:

Referring to Figure 4, the process of data transmission is as follows: After the system works normally, the data to be sent is temporarily stored in the TXFIFO memory. When the start frame delimiter SFD is sent, an RF interrupt is generated, and the CC2430 is notified to start transmitting the TXFIFO. The data in .

Referring to Figure 8, the process of data reception is as follows: the system works normally. When data is sent, an RF interrupt is generated, and C2430 is notified to receive data. The received data is temporarily stored in the RXFIFO memory, waiting for the CPU to read the data. .

In order to prevent the criminals from copying or applying other people's license plates, or other escaping inspection methods, etc., in the present invention, when the electronic driving license sends a unique vehicle identification to the checkpoint, the content of the transmission is encrypted and transmitted, and then passed at the checkpoint. Obtain the correct vehicle identification after decryption, please refer to Figure 10 and Figure 11, The encryption and decryption process is as follows:

First, encrypt the identity unique identifier of the vehicle (the encryption method supports dynamic change), the CPU takes out the encrypted identity data (8 bytes) from the memory, uses the AES encryption algorithm, and takes out the secret required by the AES encryption algorithm. The key is AES encrypted to form a ciphertext; secondly, the AES encrypted ciphertext data is transmitted to the programmable logic device, and then hardware encryption is performed. The programmable logic device performs a convolution operation on the input ciphertext according to the implemented logical relationship, and outputs a corresponding convolutional code to generate a final vehicle identity ciphertext.

The decryption process is the inverse of the above encryption process. First, using Viterbi decoding, the convolved ciphertext is decoded in a programmable logic, and then the AES algorithm is used to translate the identity unique identifier.

A further technical solution for realizing the invention is the monitoring center of each regulatory department. The supervisory center of each supervisory department can receive the illegal suspect vehicle information sent by the remote monitoring center in real time, and impose corresponding punishment on the vehicle.

Claims

Claim

1. A vehicle supervision system based on electronic identification, characterized in that: the system comprises an electronic driving license, a checkpoint, and a remote monitoring center.

The electronic driving license is installed in the vehicle, and includes a driving license control unit and a wireless sensor radio frequency module connected to the control unit, and a programmable logic device for hardware encryption connected to the control unit; the checkpoint can be set at Road inspection gate, checkpoint includes checkpoint control unit, wireless sensor RF module, programmable logic device, remote transmission unit, storage unit, database, wireless sensor RF module and checkpoint control unit data terminal connection, used to receive electronic driving license The sent identification information, the programmable logic device is connected with the data terminal of the checkpoint control unit, and is used for decrypting the ciphertext sent by the electronic driving license, and the remote transmission unit is connected with the data end of the checkpoint control unit, and the electronic driving license is sent. The identification information can be identified by the local database for legality identification, or transmitted to the remote monitoring center through the remote transmission unit for remote identification, and the remote monitoring center can be connected through the network, and the illegal suspect vehicle information can be updated in real time;

The remote monitoring center includes a database management system and a remote monitoring system. The database management system stores vehicle identification information, and the remote monitoring system receives the information sent by the checkpoint in real time, and feeds the processing result back to the checkpoint.

2. The electronic identity recognition based vehicle supervision system according to claim 1, wherein: the system further comprises a mobile checkpoint for moving and checking suspected illegal vehicles at any time, the checkpoint being real-time. Receiving remote surveillance center sent suspected illegal vehicle information, implementing arrest, and mobile detection. The device is composed of PDA/high-end mobile phone and wireless module, and is equipped for law enforcement personnel of various inspection positions.

3. The electronic identity recognition based vehicle supervision system according to claim 2, wherein: the suspected illegal vehicle information includes checkpoint location information, suspected illegal vehicle quantity, and discovery time.

4. The electronic identity recognition based vehicle supervision system according to claim 1, wherein: the electronic driving license encrypts the detected vehicle information by a software encryption algorithm, and then implements hardware through a hardware programmable logic device. The convolution circuit convolves the ciphertext encrypted by the software; the checkpoint decodes the convolved ciphertext in the programmable logic by Viterbi decoding, and decrypts the ciphertext into plaintext through a software decryption algorithm.

5. The electronic identity recognition based vehicle supervision system according to claim 4, wherein: the software encryption algorithm uses an AES encryption algorithm.

6. The electronic identity recognition based vehicle supervision system according to claim 1, wherein: said remote monitoring center further comprises a communication service system, a GIS, a large screen display system, a UPS system, a communication service system and a remote The data center of the monitoring center is connected to communicate with other handheld terminals. The UPS system provides backup power for the remote monitoring center. The GIS and large-screen display system are connected to the data terminal of the remote monitoring center to assist law enforcement officers to easily find illegal vehicle information.

7. The electronic identity recognition based vehicle supervision system according to claim 1, wherein: the communication between the electronic driving license and the checkpoint can adopt the IEEE802.15.4 protocol and the Zigbee protocol, or use Wi-Fi. Protocol, Bluetooth protocol, UWB protocol, NFC protocol, RFID protocol, SimpliciTI protocol.

8. The electronic identity recognition based vehicle supervision system according to claim 7, wherein: the electronic driving license and the checkpoint are communicated by using an IEEE802.15.4 protocol and a Zigbee communication protocol, and the use of the electronic driving license is simplified. For Zigbee nodes, checkpoints use full-featured Zigbee nodes.

9. The electronic identity recognition based vehicle supervision system according to claim 1, wherein: the data format sent in the electronic driving license is a license plate, a random variable, and a installation place.

10. The electronic identity recognition based vehicle supervision system according to claim 1, wherein: the electronic driving license is provided with a vehicle identification, the vehicle identification includes a license plate number and a random variable, and the random variable includes a remote monitoring center. The updated random variable 1, the random variable 2, the license plate number, the random variable 1, and the random variable 2 are transmitted to the electronic driving license by the wireless sensor radio frequency module after being encrypted by interleaving, and the random variable 1 and the random variable 2 in the electronic driving license are updated in real time.