Passive UHF RFID system is adopted for vehicle safety supervision in Expo Park
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There are various types of vehicles entering the park for the 2010 Shanghai World Expo, such as embassies and consulates related to foreign affairs, material services, environmental sanitation, security, firefighting and ambulance vehicles, etc.; regional management levels are diverse, such as tight traffic safety control areas, automobile traffic support and guarantee functional areas, etc. , Vehicle access restrictions and inspection methods are different. Such an international conference with a long time span, a large number of participants, and a large impact puts new requirements on the safety supervision of vehicles entering the park. The Third Research Institute of the Ministry of Public Security combined with the scientific research results of the Eleventh Five-Year National Science and Technology Support Plan “Automotive Digital Standard Source System”, introduced a dual recognition mechanism of radio frequency identification and image and video recognition, established a vehicle safety supervision system in the Expo Park, and obtained the World Expo Affairs Coordination Bureau Highly affirmed by the Security Department.
System principle
The vehicle safety supervision system of the Expo Park is based on automatic vehicle identification and certification services, with the solution of “automatic identification and certification of vehicles” as the core, and provides a technical platform for the safety supervision of vehicles and driving in the “regional road traffic environment”.
Through the installation of electronic documents with high anti-counterfeiting capabilities that are suitable for different vehicle models and work in passive ultra-high frequency bands, the unique correspondence between electronic documents and vehicles is implemented to achieve “electronic identity mirroring” of vehicles entering the park, combined with image and video recognition mechanisms, to make it The static information of the identification object (vehicle) is organically combined with the dynamic information (time and road space information).
When a vehicle passes through the entrance and exit of the park to inspect the base station, the system automatically collects the vehicle’s electronic certificate information and image information, and the background database will determine the legitimacy of the received vehicle information. When the vehicle identity information, access information, and the image and radio frequency information collected by the base station are completely consistent , To be released, and the vehicle-related traffic information is automatically recorded in the back-end database.
By creating an “identity standard source” that fully supports modern information technology, the system comprehensively develops information resources that serve this field, and builds a vehicle-related and driving-related safety supervision system based on modern information technology, which can meet the needs of multiple police types. Vehicle-related police operations requirements include the following technical defense and technical control services: automatic collection and analysis of full-sample “cars and driving” information, vehicle access control in key areas of prevention, automatic strikes against fake (set) license vehicles, and blacklisted vehicle detection Deployment control, vehicle operation status inspection and control, and trajectory backtracking, etc.
The system has the ability to quickly customize and develop according to the business process, can efficiently and reliably complete the supervision of operating vehicles without affecting the original traffic, and has the technical conditions of the public service platform for car-related information, supporting multiple social car-related industries And user service business.
System composition
The vehicle safety supervision system of the Expo Park is composed of four parts: the card management system, the base station group, the information center and the information service platform. The base station group system and the card management system together constitute the hardware foundation of the system, the information center and the information service platform (collectively referred to as information service System) constitutes the service core of the system, and the former provides data support for the latter.
———Card System
Carry out “two-stage” (ie, “physical life” phase and “system life” phase) full life cycle tracking and supervision of vehicle electronic certificates. The card management system is responsible for the realization of the two-stage full life cycle tracking management and its validity certification and information maintenance. It also acquires and establishes the car user information archive for the system during the system life cycle management process of the electronic certificate. Other relevant sub-systems provide customer information services.
———Base Station Group
The base station group is a terminal for sending and receiving vehicle information in the park. On the one hand, the vehicle’s electronic credentials and image information are collected through the base station system to realize vehicle entry inspection and release, and send relevant records to the information center; on the other hand, implement vehicle deployment control based on the blacklist provided by the information center.
—information Center
The main function of the information center is to collect, integrate, analyze, and distribute various vehicle information. The information center can be divided into central information center and district information center according to the hierarchical structure.
The Central Information Center, as a regional data exchange and coordination center, realizes the automatic transmission of cross-regional vehicle-related blacklist information and illegal information through the public security network, and realizes the sharing of vehicle illegal and illegal information in the park; the district information center is responsible for Communication with base stations, and provide information services and management.
———Information Service Platform
The service platform is the embodiment of the application of the vehicle safety supervision system in the Expo Park, including the application platforms of various functional departments at all levels, such as traffic management platforms, emergency rescue platforms, etc., as well as public security and personal service platforms, such as travel information service platforms, vehicle safety platforms, etc. . ☆Typical process design
The Expo Park Vehicle Safety Supervision System implements access inspections for vehicles entering the park. Its core lies in the legal determination of two mechanisms: radio frequency identification and video identification. The video capture and forensic function module performs video capture and license plate recognition on passing vehicles; radio frequency identification system Collect vehicle electronic certificate information. After the vehicle enters the system’s read-write area, it automatically reads the vehicle information, and compares the read information with the background information after storing it.
When the vehicle enters the inspection area, the video module automatically recognizes the vehicle number plate, the radio frequency identification system reads the electronic certificate information, compares the consistency of the captured image information and the electronic certificate information, and sends the comparison results and release information to the information center.
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