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1. Management object
Various parking lots: such as office buildings, government courtyards, communities, etc., these places generally have a large number of vehicles and frequent entry and exit. The level of vehicle management directly affects the image of the property, and also affects vehicle safety and management efficiency;
Various types of mine transport vehicles: iron ore, coal mines, freight stations, etc. There are many private transport vehicles in weighing occasions. Efficient and accurate vehicle management directly affects the accuracy of unit freight. Poor management will also breed corruption and waste freight;
Various highway toll occasions: highways, bridges, tunnels, national highways, etc. The management level of these toll occasions directly affects revenue and also affects the speed of traffic.
The use of high-tech products RFID (Radio Frequency Identification) to realize intelligent vehicle management is an inevitable choice for parking lots, vehicle weighing occasions, and vehicle charging occasions. The RFID long-distance card reader is the best choice to achieve this demand.
This system can be used for long-distance, fast reading and management at vehicle speeds not higher than 80km/h. It is conducive to strengthening the management of various vehicles, taking safety precautions and understanding the working conditions of vehicles in a timely manner to provide help for subsequent dispatch and management.
Management link
? Vehicle registration
?Daily access management
? Temporary vehicle management
?Parking charges
?Traffic management
Object
?transport vehicle
?Office vehicles
? Residential owner’s vehicle
2. System structure
This scheme takes parking lot management as an example. The scheme is at the forefront of the market and has high technical content. It realizes automatic identification and automatic management of vehicles through non-contact information collection and processing of long-distance moving targets. When applied to parking lot charging management and entry and exit vehicle control, the owner can enter and exit the parking lot without stopping, automatically recognize the identity of the cardholder through the computer, and determine whether the car is released or intercepted, which provides great convenience for the owner’s passage and property management.
The system is mainly composed of entrance remote card reader, controller equipment, entrance railing machine, exit remote card reader, exit railing machine, charging and monitoring management center. For the one-in-one-out system, its running demonstration is shown in the figure below:
Figure 1: Schematic diagram of RFID parking lot management
The entire management system consists of 4 parts.
(1), vehicle IC card (electronic license plate)
The electronic identification card is a passive electronic radio frequency card with a radio frequency of 860-928Mhz and a memory of 256bit. It can store various information including vehicle model, license plate number, and relevant information of the owner. It is a complete car identification card and credit card. This kind of label can be packaged into different forms depending on the placement position. For example, the label placed behind the windshield can be made into a transparent glass label, and the label placed on the roof or the side of the car body can be sealed into an anti-metal label to enhance the communication effect.
(2), RFID long-distance card reader
The RFID long-distance card reader is a device that integrates a reader and an antenna, and uses it to establish a directional wireless communication with an RFID electronic tag. It has strong anti-jamming performance and fast recognition ability, and can adapt to the management of various sports vehicles. Such long-distance readers usually use an external antenna to complete the radio frequency communication with the identification card. For example, the UHF reader/writer YXU1861 of Shanghai Yingxin Information Technology is a radio frequency identification device specially developed for vehicle management, with a reading distance of 12 meters and a vehicle moving speed of 120km/h during reading and writing.
(3) Microprocessor for communication processing
It interprets the information from the identification card and transmits it to the lane controller, so as to obtain the relevant information of the vehicle and perform corresponding processing. After analyzing the data information from the lane controller, the data in the identification card can be modified as necessary. .
(4) Lane controller
According to the information on the card, it can determine whether the passing vehicle has the right to pass normally. It can also determine the validity of the card, activate the corresponding traffic signs or open the barriers, etc., or issue a warning to the owner of the necessary prompts.
3. System operation process
Flow chart of vehicle admission:
Figure 2: RFID vehicle entry process
Operation process of vehicle departure:
Figure 3: RFID vehicle exit process
Fourth, the main functions of the system
1. Admission control function:
?Identity Recognition: Determine whether the vehicle that comes to swipe the card has permission to enter the venue;
?Temporary card issuance: Temporary parking cards are automatically issued to vehicles temporarily entering the parking lot; the card issuance method can choose to have a car button, the card is out of the car button, and the computer is issued; the automatic issuance of the temporary card can choose to have a car. Card reader, card reader without car; after the card is issued, the card issuer must wait for the owner to take the card to the barrier gate before it can be opened. When the card is not taken away within 20 seconds after the card is issued, the card issuer will automatically retract the card into the chassis. Avoid the loss of the card;
?Monthly card automatic recognition: When the vehicle enters, the long-distance reader (RFIDReader) automatically reads the tag card on the car, and the long-distance reader (RFIDReader) transmits the vehicle’s monthly card information to the background, and after comparison, the lane is automatically opened Gates, no entry is allowed without an authorized card. The whole process does not require manual intervention.
?Information record: When reading the card, it will automatically record the time of entry, the place of entry, vehicle information, and the identity of the owner;
?Image capture: capture the image of the entering vehicle synchronously with the gate opening instruction and store it in the database for vehicle verification and future reference when leaving the venue;
? Vehicle information identification: Automatically identify the information of the vehicle entering the venue (ie RFID number), as a unique identification mark for the vehicle entering the parking lot, which can be used for vehicle identification when leaving the venue and later reference;
?Full position display: When the parking lot is full, the incoming vehicle will be notified through the LED display screen, and the button is forbidden to exit the card, but the computer card exit function is still retained to meet the entry requirements of some special vehicles and personnel;
Location guidance: prompts and guides vehicles entering the parking lot to park in an area with vacant parking spaces; accurately finding a parking space in a relatively large parking lot is a time-consuming and energy-consuming task, and the parking space guidance function can be compared to the location The guidance function solves this problem more accurately;
?Information display: High-brightness LED display, even in the sun, the displayed information is still clearly visible; the information display is displayed in both Chinese and English, which is suitable for the increasing number of foreign car owners in the WTO environment; the information content is concise and to the point. Give clear reminders to the car owner without delaying the time for the car to enter the venue;
Voice prompts: convenient and thoughtful voice prompts; clear and pleasant analog voices; pluggable digital voice modules to facilitate system integration and upgrades; large storage capacity to meet the output of multiple voice prompts;
? On-site monitoring: Full site monitoring: Detect the parking situation of each area in the parking lot, and detect the parking situation of each parking space.
2. Appearance control function
?Automatic billing: Automatically calculate parking time according to the entrance time and exit time, and automatically calculate the toll according to the parking time and charging standard; the charging standard can be easily defined in the parking lot management software according to the needs and downloaded to the control machine In, the charging time can be accurate to the second, and the charging amount is as small as “corner”;
?Monthly card automatic identification: When the vehicle enters, the long-distance reader (RFIDReader) automatically reads the tag card on the car, and the reader (RFIDReader) transmits the vehicle’s monthly card information to the background, and after comparison, the barrier is automatically opened , No authorization card will not appear. The whole process does not require manual intervention.
? Vehicle confirmation: compare and display vehicle information when reading the card to confirm whether the entry and exit are the same car;
Image comparison: Take the image of the exiting vehicle and store it, and at the same time automatically call up the comparison display of the entry image of the vehicle to perform accurate comparison confirmation, enhance the anti-theft function, and make the post-audit more accurate and easier;
?Vehicle information recognition: Automatically identify the information of the exiting vehicle (ie RFID number), as a unique identification mark for the vehicle entering the parking lot, and automatically compare it with the license plate number recorded when entering the venue, so as to automatically and quickly confirm the entry and exit Whether the field is the same car, and it can be checked later;
? Temporary card recovery: In addition to the manual recovery of temporary cards by the staff on duty, the export control machine can be set up with a card swallowing machine to automatically recover temporary cards;
? Information display: High-brightness LED display, even in the sun, the displayed information is still clearly visible; the information is displayed in both Chinese and English, which is suitable for the increasing number of foreign car owners under the WTO environment; the information is concise and can be given A clear reminder from the car owner without delaying the time of the car’s appearance;
Voice prompts: convenient and thoughtful voice prompts; clear and pleasant analog voices; pluggable digital voice modules to facilitate system integration and upgrade; large storage capacity to meet the output of multiple voice prompts;
? Can accurately distinguish self-owned vehicles, foreign vehicles and special vehicles.
3. Central control and management functions
IC and ID card management: realize the management of IC and ID card authorization, data modification, loss reporting/removal reporting, card return, emptying and recycling, etc.; the maximum number of lost reporting cards that the system can handle is 30,000 (that is, the number of blacklists) 30,000); The maximum card capacity of the system is 232-1;
?Universal query function: It is possible to query related data such as parking lot usage, card usage, and vehicle entry and exit through one condition or a combination of multiple conditions, and can generate reports according to customer requirements, or facilitate other electronic system calls Report.
?Statistics management: provide various statistical data output in different report forms, provide any form of inquiry and output in report form;
?Equipment monitoring and management: control the opening, closing and stopping of the barriers, and control the card issuing machine to issue cards; real-time detection of the working status of the barriers and display them in a vivid way, real-time detection of the working status of the card machine and the number of stored cards And display in a vivid way, real-time detection of the working status of the vehicle detector and whether there is a vehicle on the induction coil and display it in a vivid way;
System settings: With a simple mouse click, you can easily set up the system, such as with/without image comparison system, data retention time, selection of authorized card issuing equipment, charging method, yes/no full seat prompt, etc.
Five, the main features of the system
(1) Complete and rich system functions
It has the functions of automatic identification, intelligent control, alarm prompt, information recording, data communication, query, statistics, and analysis; at the same time, it has the characteristics of convenient expansion and easy upgrade.
(2) Stable and reliable system performance
The hardware is strictly screened and tested, and appropriate backups are reserved; the software is carefully designed, carefully debugged, and has redundant fault-tolerant performance; the system has fast processing speed, high reliability, good stability, low error and leakage rate, and has data backup and data Resilience.
(3) Realize the rapid passage of normal vehicles without stopping
Using radio frequency identification (RFID)-the technical advantages of long-distance rapid identification, through the steps of automatic identification of vehicle information, database data comparison, automatic control of road gate railings and traffic lights, real-time control of vehicle traffic, realizing the vehicle to 20-30km /h speed does not stop in and out; for systems without road gates and traffic signal control, the in and out vehicle speed is above 60km/h.
(4) Strict supervision of non-card (foreign) vehicles
The supervision of cardless (foreign) vehicles has always been a technical difficulty of RFID vehicle management systems. Through the integration of other systems and technologies, it is possible to achieve effective supervision of foreign (cardless) vehicles by combining automatic computer identification and monitoring with guards (door guards, security) personnel manual operations, and to ensure the admission and information of cardless (foreign) vehicles. Supervision of vehicle traffic.
(5), prevent the vehicle from being stolen
Carry out data management of vehicle information in the compound; in addition to setting up image capture equipment, add on-board RFID card data area status information; vehicles with special requirements for security and anti-theft, use on-board RFID card and dual-card identification for the driver to carry the secondary card Solution: Add the deployment control function to the system as required.
(6) Convenient and simple operation
The user interface is intuitive, vivid and friendly; the operation steps are simple and clear; the application system provides corresponding “online help”.
(7) Security and confidentiality of system data
At the network level, system level, and database level, there are access authority controls; it has the ability to check the legal identity and use authority of users; data is encrypted.
Six, the main hardware equipment of the system
1. UHF long-distance IC card reader
This system uses UR5206 integrated reader from Shanghai Haobin Information Technology Co., Ltd. It supports electronic tags that comply with ISO18000-6B and EPCC1G2 (6C) protocols. The integrated design of reader and antenna ensures low cost and high stability. Features, advanced microchips, ultra-high frequency identification, low power and high-speed data processing and other technical features ensure its excellent performance, which can be widely used in various requirements for long reading and writing distance, fast reading and writing speed, and correct performance. In demanding and stable projects.
RFID characteristics
Support agreement: ISO18000-6B, EPC CLASS1 G2 standard electronic label;
Working frequency: 902～928MHz (can be adjusted according to the requirements of different countries or regions);
Output power: up to 30dBm (adjustable);
Reading distance: 0~7m*
Work in a wide-spectrum frequency hopping (FHSS) or fixed frequency transmission mode;
Support multiple working modes such as automatic mode, interactive response mode, trigger mode, etc.;
Low power consumption design, single +9V power supply;
Support RS232, RS485, Wiegand, RJ45 and other user interfaces;
*The effective distance is related to the protocol format, external antenna, electronic tag and working environment.
Interface parameters
DB9 pin interface: Red: +9V; Black: GND; Yellow: Wiegand DATA0; Blue: Wiegand DATA1; Brown: GND; Purple: RS485 R+; Orange: RS485 R-; White: RS232 RXD; Green: RS232 TXD; Gray: external trigger (TTL level);
Network interface: 10M/100M adaptive Ethernet.
Development parameters
Instruction set: Provide C language instruction set;
Demo: Provide C# delphi demo software and source code;
Dll library: provide C# VB library and library description;
Firmware upgrade: support personalized firmware development customization and upgrade;
Mobile terminal operation: support on-site device inspection and diagnosis on the mobile terminal (optional).
RF parameters
Interface protocol: EPCglobal UHF Class 1 Gen 2 / ISO 18000-6C ISO 18000-6B;
Working frequency: 860~868MHz/902~928MHz (can be adjusted according to the requirements of different countries or regions);
Output power: 0-30 dbm;
Output power accuracy: +/- 1dB;
Receiving sensitivity: <-85 dBm.
Read parameters
Built-in antenna; built-in 8dbi circular polarization antenna;
The peak value of label inventory; peak label query speed>50 sheets;
Reading distance: 0-7 meters according to different parameters and performance of tags and antennas.
Physical properties
Size: 235mm×235mm×45mm
Weight: 900g
Working humidity: <95% @ 25 °C without condensation
Working temperature: 20 °C-+ 55 °C
Storage temperature: 20 °C-+ 85 °C
2. IC card for automobile special vehicles
This system adopts the UT2867 UHF vehicle IC card of Shanghai Haobin Information Technology Co., Ltd., adopts a unique tag antenna design, has excellent performance, can read multiple tags at a long distance, and is widely used in vehicle management and weighing management. , Internet of Things training, membership management, logistics, warehousing, product identification, item anti-counterfeiting, identity recognition and other fields.
RFID characteristics
Frequency: 920~925MHz (can be produced according to the frequency requirements of different countries)
Protocol: UHF EPC GlobalClass1 Gen2, ISO18000-6C
Chip type: Alien/Higgs3
TID 64bits
EPC: 96bits (can occupy the user area, extend EPC to 496bits)
User area: 512bits
Reserved area: 32bits
Working distance:
Reading distance (handheld) Handheld reading distance: 4.0m or more, the maximum power of the handheld: 30dBm;
Reading distance (fixed) fixed reading distance: 8m or more, fixed reader maximum power: 30dBm;
Chip allowable number of reads and writes: 100,000cycle
Type: Passive (read and write)
Physical properties
Size: 86*54*0.8mm
Applied surface materials: non-metallic surfaces such as plastic wood products;
Label substrate: PVC+aluminum etching inaly;
Product color: white (can be customized to print LOGO, print one-dimensional, two-dimensional bar code and serial number);
Read application temperature: -10~45;
Storage temperature range: -25~60℃;
Weight: 5g;
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