RFID vehicle intelligent management system

1. System overview
With the rapid development of the national economy, the number of urban cars has continued to increase. While cars have brought people fast and convenient transportation, they have also caused many inconveniences due to poor parking management and other issues. Therefore, in recent years, cars have become static. Management and dynamic balance have become a new issue that many people of insight focus on. In order to meet people’s requirements for a more scientific and standardized living and working environment, the automatic management system for parking lots with efficient, safe, reasonable, fast and convenient management has become a necessary supporting facility for many large-scale comprehensive buildings and residential communities. Many high-end apartments, large-scale entertainment venues, hotels, office buildings, stadiums, etc. in the prosperous area have more cars parked, and the traffic volume is large. In order to ensure vehicle safety and convenient transportation, it is urgent to adopt a high degree of automation and convenient and fast automatic parking lot management. System to improve the level of parking lot management.

On the basis of years of technical reserves, a set of intelligent vehicle management solutions has been developed, which integrates remote sensing radio frequency technology, automatic control technology and vehicle detection technology, and is applied to parking lot management and vehicle access control management. It has the characteristics of advanced, reliable, safe, convenient and fast, which effectively solves the problems of owners and car owners.

1. System function
Realize user parking management, and can realize the image comparison function of entering and exiting vehicles (optional);
Long-distance card reading to realize fast passing without stopping;
The smart card management system is adopted to make management paperless, orderly, standardized and intelligent. Smart cards should have the characteristics of being waterproof, anti-magnetic, anti-static, non-wearing, large amount of information storage, high security density, and multiple functions in one card;
Provide complete management functions and automatically form various reports;
The computer automatically records vehicle entry and exit conditions for future reference;
Good safety, anti-interference and reliability;
Authority management to ensure system security.

2. Main features
The vehicle intelligent management system is a comprehensive management system that uses a long-distance card as the vehicle entry and exit parking lot voucher for vehicle identification. Using advanced long-distance identification technology, through the cooperation of computers and radio frequency equipment, the security and management of vehicles entering and leaving the parking lot. The vehicle intelligent management system has powerful data processing functions, which can complete the setting of various parameters of the management system, data collection and statistics, can manage various remote cards, report the loss of lost cards, and can print effective Statistical report.

The vehicle management system mainly adopts 2.45G micro-wavelength distance recognition technology, and the distance can reach 4-6 meters or more than 8 meters, with strong anti-interference ability and good anti-counterfeiting performance. The vehicle has an ID card with a unique serial number that cannot be changed. There is no mechanical contact action and inductive communication during use. The card can be swept across the surface of the reader at will, and the card reading operation can be completed within 0.2 seconds, which is convenient for users usage of;
Using computer control and data processing technology, high degree of automation, accurate control; software based on Windows platform, full Chinese interface, man-machine dialogue, easy to master; vehicle record display on the interface;
Adopt modular design, flexible combination and reliable performance;
The method of authority management prevents illegal modification or unauthorized access to data; automatic recording of various entry and exit conditions;
The standard industrial control system structure can organize the configuration of different systems according to the different requirements of users, which is convenient and flexible.

1) Modular design
The hardware and software of the management system are composed of several functional mode blocks, so that systems with different functions can be flexibly composed according to the different requirements of users. The devices with different card reading distances are combined into multiple types of systems. There is no major change in system software and application software, which greatly facilitates users, shortens the engineering cycle, and improves the reliability of the system.

2) The TagMaster system is used to quickly pass through the entrance/exit. The detection speed of the vehicle through the entrance and exit communicator is above 10KM. The detector and stopper are equipped with an appropriate distance to realize the vehicle’s non-stop passing.

3) Unattended exit/entrance
Vehicle entrances and exits can be unattended, can keep the entrances and exits unimpeded, and realize the modern management of the parking lot.

4) Good safety and anti-interference
Adopting advanced signal processing technology, its biggest advantages are: (1) Strong signal penetration ability (penetrating walls, roads, clothing, people, etc.), and strong anti-interference ability; (2) High-energy batteries in the identification card Provide sufficient voltage and functions for the normal operation of the integrated circuit in the card and the emission of high-frequency electromagnetic waves. The energy consumption of the identification card is extremely low, and each card can be used for 6-8 years.

5) High adaptability
It can adapt to various environments from -20°C to +60°C.

6) High confidentiality
The equipment and identification card of this system provide users with a unique identification code, which fundamentally eliminates the phenomenon of copying, forgery and cheating.

3. Comparison and selection of cards
In the past, various systems usually used magnetic cards, barcode cards, contact IC cards or proximity cards, all of which had great disadvantages: magnetic cards, barcode cards and contact IC cards have gradually been used by non-contact technology due to various restrictions. Replaced; The short-distance non-contact sensor card recognition distance is short, which cannot meet the requirements of high-speed traffic; the above is not applicable to the modernized parking lot, so the driver must repeatedly adjust the position of the car when swiping the card, and the user cannot tolerate the original proximity Distance swiping system. In order to ensure the convenience of users, this solution recommends the use of RFID radio frequency card system, adopting international advanced non-contact identification technology, and the identification distance can reach 4-6m or more. It overcomes the shortcomings of the above-mentioned cards and is the best for modern vehicle management. choose.

Second, the work process
The system control computer is connected to two S1513 long-distance readers, which are installed at the door to record the entry and exit of vehicles. The door is divided into two entrances and exits.
First, the system registers the vehicle identification card and writes user information into the computer database, so that the system can use read-only tags to reduce costs; the card is installed on the front windshield of the vehicle for easy reading;
When a vehicle enters or leaves the gate, the long-distance reader reads the vehicle tag and uploads the tag information to the control computer. The computer judges the legitimacy of the tag. If it is legal, it will issue a release order and the vehicle stopper will release the vehicle; otherwise, the vehicle stopper will not act;
The control computer records each vehicle’s entry and exit records for historical record query.

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? Control Center
The main control room can be located in the parking lot or other suitable places, and the central control computer is located here. The main control computer monitors and manages the entry and exit of the entire vehicle. It can monitor the entry and exit of each vehicle in real time and automatically record it, including the time of entry and exit of internal vehicles, entrances and exits, and other information. At the same time, it can also complete internal card issuing, unified setting of system equipment, such as controller parameters, etc., statistics and query historical data, etc., and print out various reports. New cards can be added at any time, invalid cards can be deleted, unauthorized vehicles are deemed invalid but recorded, and expired cards automatically become invalid. The main control computer can be connected to the building management network to provide the required information to various departments (finance, property department, security department, etc.). The system software is a Chinese Windows graphic interface, the mouse operation is simple, and the function can be modified according to the requirements of the property. All equipments in the entire parking lot are connected to the computer for unified management.

3. System structure and networking
The vehicle intelligent management system can adopt various network topologies. The server and the management workstation are connected in the form of a local area network (LAN), and the server is connected to the workstation in the form of RS485 bus; the commissioning is fast, the system stability is good, and the entire system can be faster and more stable work. The first level network is distributed by RS485 bus system, which mainly provides communication for each entrance and exit control machine, and the acquisition of card reading data. The second level network is LAN Ethernet star connection, computer and computer communication and data storage, SQL server is responsible for Data query and processing, network resource allocation and sharing, and classification review of the authority of each workstation. The network hub is responsible for the data communication process of the entire network, and the control center is also responsible for centralized card issuance and unified management; generally, the server is placed in the central control room. The distance between the data server and workstation transmitted by RS485 can reach 1000 meters, and in special circumstances, unlimited distance transmission can be realized.

Block diagram of the working principle of a typical parking lot system
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Four, system hardware equipment
1. Overall system structure
The parking lot management system consists of the following parts:
1) Entrance control equipment;
2) Export control equipment;
3) Control center equipment;
4) Transmission cable.
Because the software and hardware adopt modular design, it can be combined flexibly according to the specific conditions of each parking lot and the requirements of users.

2. System equipment configuration
1) The composition and function of the control center:
The control center is composed of several devices such as control computers, printers, and general controllers.
Control computer: It has the functions of querying entry and exit records, storing basic user information, renewing and canceling user card registration, printing monthly logs and statistical reports, and communication management of entrance and exit card readers; industrial grade The computer can be used in various harsh environments and has a longer service life.
Printer: print logs and reports;
Master controller: power control for entrance equipment and exit equipment. When an emergency occurs in the parking lot, the lever can be manually lifted and dropped.

2) Composition and function of entrance and exit equipment:
Card reader controller: read vehicle and personnel cards, upload data and control railings;
Information display screen: display prompt information;
Power distribution equipment and car stoppers.

3. Technical parameters of the main equipment of the system
A.Working principle of automatic identification system
The automatic identification system consists of a card reader, an induction card and corresponding accessories. The card reader emits an inquiry signal. When an induction IC (ID) card enters the signal area of ​​the reader, the induction card will be activated after receiving the inquiry signal. The information inside is sent out, and the card reader will recognize it after receiving this information.
B.Features of automatic identification system
The proximity card is used, and the radio frequency is used to transmit information between the card reader and the proximity card, which is not affected by the weather and has high reliability.
C.Long-distance reading equipment
Using the Swedish TagMaster company’s long-distance communicator, the device has a long card reading distance, stable operation, and an operating temperature of -20 ~ +60ºC. It conforms to CE0413, FCC M39S1500, FCC M39S1501, ISO14001:1996, ISO 9002:1994 certification, and is used in various fields. All have better applications. This reading device has a built-in management program that can automatically complete the vehicle identification function offline, and the built-in database can store 15,000 electronic label data.

8m reading distance, up to 12 meters
Software setting reading distance/channel (100 selectable channels)
Label programming
4. Motion detection within 5m
3-color LED and buzzer
User programmable
Flash EEPROM database
DTMF and LED interface
RS232 and 2/4 wire RS485
3 parallel input, 2 parallel output
Relay and protective switch
24V or 12V working voltage
-40 degree to +60 degree normal work
Work normally in harsh environments such as rain, snow, wind, sand, corrosion, etc.
RFID technology, 100% accurate recognition rate

D.electronic label
As the vehicle’s electronic identification, it is installed at the bottom right of the car’s windshield.
Unique ID;
Power supply type: battery powered;
Service life: more than 6 years;
Working temperature: -20℃ — +85℃
Working frequency: 2.45GHz
Adapt to the environment: rain, snow, fog, dust, oil, chemical corrosion, wind and sand, vibration, shock, etc.

Main application areas:
1. The access control system can manage the army, government agencies, large parking lots and residential areas
2. Logistics management, which can be applied to airports, stations, and postal services to scientifically and accurately manage the flow of objects
3. Manage personnel, which can be used for company employees’ attendance and record management of personnel entry
4. Personnel positioning, applied to hospitals and some departments that need to accurately locate personnel
5. Monitoring and detection, which can monitor and detect the information of trains or other moving objects; record the flow of the assembly line
6. Highway toll collection, applied to highway toll stations

Five, system software
The vehicle management system is a comprehensive vehicle management system that uses radio frequency cards as the vehicle entry and exit certificate for the parking lot. It automatically controls the entrance and exit management equipment of the parking lot lane. The software system has powerful data processing functions, can set and modify various control parameters in the parking lot management system, can report the loss of user cards and reissue, can perform classified query and print statistical reports, and can check the parking lot Manage all kinds of data from time to time.
1. User Management
Start the management system software, and enter the main interface of the system software after correctly inputting the operator number and password.
The menu is divided into user management, printing reports, system settings, etc. according to functions. User management includes the preservation and registration of basic user information, and can register, renew, cancel and report loss of users.
2. Daily report, monthly report
The user enters/leaves the parking lot and swipes the card normally, the management system interface automatically displays the basic information of the entry/exit record and records the entry/exit status into the database; at the same time, it can print out the entry and exit status report under various conditions.
3. Rights Management
System settings are divided into super users and ordinary users. Super users can operate the entire system software, including the settings of the operator and the settings of various parameters of the system, while ordinary users can only perform simple management and report printing.

Six, successful cases

Shanghai Jinmao Building Parking Lot Renovation
The user’s vehicle windshield is pasted with a radio frequency tag. When the vehicle enters and exits the parking lot, the radio frequency reader reads the tag to control the take-off and landing of the car stop railing to achieve vehicle access control. The main control computer monitors and manages the entire parking lot. For long-term users’ vehicles With anti-circular function. It can monitor the entry and exit of each vehicle in real time and automatically record and generate entry and exit logs, including the entry and exit time, entrance and exit information of the vehicle. The main control computer can be connected to the building management network to provide required information to various departments.

Beijing Public Transport Hub Project
The electronic dispatching system of the public transportation hub is composed of four subsystems: automatic vehicle identification system, computer data processing system, electronic display system, and auxiliary system. It can conduct centralized automatic dispatch of buses and realize paperless dispatch management of vehicles. When the vehicle enters the station, it is automatically recognized without stopping, and the dispatch terminal is registered and dispatched automatically. The computer processes, counts, and prints all kinds of data, can give all kinds of information needed by the management department and automatically send dispatch signals (vehicle number, departure time, etc.) to the display system. The electronic display on the platform displays scheduling information such as the line name, driving direction, and the departure time of this shuttle bus and the next bus.

Underground parking lot project of a building in Beijing
Install one RFID reader at the entrance and exit of the underground parking lot of the building, and install RFID tags on the long-term tenants’ cars in the parking lot. When entering and leaving the parking lot, it can automatically read the card, automatically lift and fall the railings, and pass without stopping. Function to prevent the loss of parking fees, thereby realizing the intelligent management of the parking lot.