Application of Hongqiao Airport Taxi Management System Based on UHF Band RFID Technology
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Case name: Hongqiao Airport Taxi Management System Based on UHF Band RFID Technology
Typical users:Urban Transportation Management Office, Urban Traffic Administrative Law Enforcement Corps and various brigades, taxi companies
Application case technical frequency range:840.5MHz—844.5MHz
Introduction to the main features of the application case:
1. Realize the long-distance non-stop recognition of the electronic certificate of commercial vehicles, change the mode of short-distance human eyes recognition of the electronic certificate of commercial vehicles or close-range machine-readable electronic certificates, which can realize the management and service of the vehicles during the normal operation of the vehicles;
2. Combine UHF band RFID technology with VID technology to identify cloned taxis under long-distance dynamic conditions;
3. The two certificates of the vehicle operation certificate and the driver’s qualification certificate realize the judgment and inspection of the relationship during the driving process, which can realize the accurate identification and judgment of the car identity and the driver’s identity characteristic information, and prevent the driver of the commercial vehicle from driving without a license. Taxi take the initiative to guard against theft.
Problem solving and key technological breakthroughs:
1. The unique requirements of the two certificates (operation certificate and qualification certificate, hereinafter referred to as the two certificates) and the establishment of the unique correspondence between the operation certificate and the marked vehicle;
2. The reliability of integrated technology and unit technology in the actual road environment is guaranteed. The farthest reading distance in the actual road environment must be more than 25m, and the reading success rate can reach 99.97%;
3. The post-maintenance work of the base station and the electronic label is small, that is, the base station is required to operate reliably, and the electronic label used for mass terminals has a life of 5 to 10 years, which can meet large-scale promotion.
4. It is required that illegal driving vehicles are found in law enforcement and proactively preventing the theft of operating vehicles. Therefore, it is necessary to achieve fixed matching and flexible matching between the two certificates, and inspections can be carried out on the actual road;
5. Check that the base station can obtain vehicle passing photos and abstract the image vector to achieve the unique matching relationship between the read electronic credential information and the captured passing photos in time and space. At the same time, the image processing algorithm is used to obtain the physical license plate of the real vehicle. And compare with the information of the two certificates to automatically identify the cloned vehicle;
Introduction of independent intellectual property rights:
1. The system is based on the “Automotive Digital Standard Source System” with independent intellectual property rights.
1. System definition
“Automobile digital standard information source” is called “digital standard information source of automobile identity information and management basic information”. It has the function of automobile “electronic ID card”, so it is commonly called “electronic license plate”. It consists of two parts: physical structure and information structure:
The physical structure of the “Automotive Digital Standard Source” is a passive ceramic-based automotive electronic tag based on RFID technology and working in the UHF frequency band (840MHz ~ 845MHz, 920MHz ~ 925MHz).
Picture: Physical structure diagram of “Automotive Digital Standard Information Source”
The information structure of “Automotive Digital Standard Information Source” is subdivided and planned according to the needs of vehicle management and service. It can not only realize the needs of public security for vehicle management and service, but also realize the requirements for transportation, urban construction, insurance, taxation, and environmental protection. , Social services for a large number of car owners and drivers.
“Automotive Digital Standard Information Source System” is a digital information technology service system related to vehicles and driving based on the “Automotive Digital Standard Information Source”.
2. System structure
“Automotive Digital Standard Information Source System” is composed of four layers: “Information Source Layer”, “Base Station Cluster Layer”, “Information Transmission Network Layer”, and “Operation Management and Control Service Layer”
Picture: Structure of “Automotive Digital Standard Source System”
1) Information source layer-bind the car and the driver through a special electronic tag, so that the car and the driver are abstracted into perceivable digital information.
2) Base station cluster layer—identify and perceive the identified cars and drivers through information sensing equipment.
3) Information transmission network layer-through network transmission and digital information mapping, the virtual abstract digital information is disseminated to specific audiences.
4) Operation management and control service layer—Processing and follow-up operations based on the obtained digital information, finally realizing the management and service of cars and drivers.
3. The working principle of the system
The automotive digital standard source system is based on vehicle automatic identification and authentication services, with the solution to “automatic identification and authentication of vehicle identity” as the core, and provides a technical platform for the safety supervision of vehicles and driving in the “open regional road traffic environment”.
The working principle of the system roughly includes the following four steps:
1) Card issuance and installation: by installing the digital standard information sources of automobiles suitable for different models, the only correspondence between the information source and the vehicle is formed, the driver card is issued, and the dynamic pairing of the vehicle is completed. The formed car and driver identity information is associated with the car card and driver card.
2) Information collection and acquisition: When the vehicle/driver passes through various collection base stations and inspection base stations, the vehicle card/driver card information can be obtained through the base station and combined with the location of the base station and the current event perception judgment to form vehicle-related/driving-related information resources (Integration of three kinds of information: vehicle/driver identity information, road network operation time and space information, and event information).
3) Information transmission: The information resources related to cars/drivings are transmitted to the intended information recipients through the information transmission network layer.
4) Management and service: The information receiver performs automatic processing and manual follow-up operations based on the digital information obtained, and finally realizes the management and service of the car and the driver.
2. Dedicated multi-mechanism fixed, handheld, and vehicle-mounted inspection base stations;
3. A set of special software;
4. Local draft standard one “Shanghai Taxi Long-distance Electronic Operation Certificate Fixed Base Station Communication Interface Specification”;
V. Draft local standard II “Shanghai Taxi Long-distance Electronic Operation Permit Application Test Specification”.
Application effectiveness:
The base station of Shanghai Hongqiao Airport Taxi Electronic Operation Certificate Demonstration Base uses multi-mechanism recognition technology combining RFID technology and image license plate recognition technology. It was completed in June 2009 and completed the sum of 100 driver qualification certificates of Shanghai Volkswagen Taxi Company in July. Issuance and installation of 50 taxi operating qualification certificates, and realized real-time transmission of inspection data to the data management platform of the Shanghai Urban Transport Management Office; in November 2009, the First Research Institute of Telecommunications Science and Technology was entrusted to complete the third-party base station electromagnetic field impact range test and Interference test for airport radio communications.
The system can realize 24-hour unattended, automatic enforcement of administrative law enforcement functions against cloned cars and taxis. As of October 13, 2009, a total of 790,000 vehicles have been inspected. Among them, a total of 2,213 Volkswagen taxis equipped with electronic operating permits were inspected, and 50 vehicles with all cards were read. In October 2009, it was successful in the demonstration of real-time crackdown on the six cloning situations of taxis organized by the Shanghai Urban Transportation Management Office and other organizations.
On-site photos:
E-document installation exterior renderings
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