2.45G long-distance active electronic tag—application scheme in vehicle management
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system introduction
The system uses the world’s leading microwave frequency band long-distance radio frequency identification technology, and each vehicle is equipped with an active proximity card registered in the system in advance. The active proximity card will continuously emit microwave signals. When the long-distance reader installed near the entrance and exit receives the proximity card signal, the long-distance card reader sends the card signal to the channel controller through the 485 interface. The channel controller judges the legitimacy of the card. If it is legal, the relay on the controller will act to drive the barriers to open and allow vehicles to enter and exit, otherwise they will not be allowed to pass. A computer can be installed at the door guard to monitor vehicle access records in real time, including vehicle department, driver’s name, license plate, and photo. It can be used with the image capture module to capture real-time photos of the current vehicle and save it in the database when the vehicle enters and exits.
The following is a schematic diagram of three more typical application modes:
Mode 1: Single channel does not judge access control:
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The channel width is 2-4 meters, and the card reading distance is preferably limited to less than 10 meters, which can be adjusted. It is not necessary to stop if necessary. The speed of the car should be controlled below 60 km/h. The induction card chooses the ML-T80 active electronic tag and install it behind the windshield of the car or in a suitable place in the car. The card reader recognizes when it is read, and does not recognize in and out. The product can use the ML-M2000 card reader, the card reader can be placed on the guard’s desk or installed outdoors. When installed outdoors, it should be protected by a metal box; the reader antenna can be fixed in the channel with a stainless steel column It can be installed beside or suspended at the proper position on the top of the channel, and can be adjusted to the best height and angle from the ground according to the actual situation of the site during installation.
The schematic diagram of mode one is as follows:
Single door does not judge entry and exit diagram
Mode two, single channel can judge access control:
The channel width is 2-4 meters, and the card readers are set 20-50 meters apart by the channel. The card reading distance should be limited to less than 10 meters and can be adjusted. It is not necessary to stop if necessary. The speed of the car should be controlled below 60 km/h. The induction card chooses the ML-T80 active electronic tag and install it behind the windshield of the car or in a suitable place in the car. The system judges the entry and exit according to the sequence read by the card reader, the first is read, the first is recognized. The product can use the ML-M2000 card reader, the card reader can be placed on the guard’s desk or installed outdoors. When installed outdoors, it should be protected by a metal box; the reader antenna can be fixed in the channel with a stainless steel column It can be installed beside or suspended at the proper position on the top of the channel, and can be adjusted to the best height and angle from the ground according to the actual situation of the site during installation. This mode generally uses two card readers.
The schematic diagram of mode two is as follows:
Single door can be judged to enter and exit schematic diagram
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Mode three, dual-channel access control:
The total width of the aisle is 4-6 meters, one in and one out. Card readers are installed at the entrance and exit respectively. The card reading distance is limited to less than 10 meters and can be adjusted. The card reader can recognize it when it reads it. It is not necessary to stop if necessary, and the vehicle speed should be controlled below 60 km/h. Choose ML-T80/ML-T60 for proximity card and install it behind the windshield of the car or in a suitable place in the car. The product can use the ML-M2000 card reader, the card reader can be placed on the guard’s desk or installed outdoors. When installed outdoors, it should be protected by a metal box; the reader antenna can be fixed in the channel with a stainless steel column It can be installed beside or suspended at the proper position on the top of the channel, and can be adjusted to the best height and angle from the ground according to the actual situation of the site during installation. This mode should install 2 card readers.
The schematic diagram of mode three is as follows:
Schematic diagram of dual-channel automatic judgment entry and exit
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System composition
1. RFID reader; 2. control computer; 3. liquid crystal display; 4. 2.45G long-distance vehicle electronic tag; 5. electronic door control lock; 6. reader/writer stainless steel mounting bracket 7. antenna; 8. access control Controller
work process :
◇ When an employee (vehicle) passes through the effective identification area with an electronic tag, the reader will automatically read the tag;
◇ After reading the card number, retrieve the employee’s personal data and vehicle data corresponding to the card in the database;
◇ If the card information has been entered, and the status is on-the-job (our company’s vehicle), if necessary, display the basic information and photos of the person corresponding to the card (the basic information of the vehicle);
◇ If there are multiple people and multiple vehicles passing by, the information of each person will be displayed in turn, but the display of the vehicle will not be transmitted
◇ 2.45G active electronic label has power prompt, when the battery is undervoltage, it can be displayed in the computer system.
Program features
Long distance: easy to achieve within 10 meters of reading distance. Due to the actual requirements of vehicle access control, the card reading distance should not be too long. This solution does not need to be manually approached to swipe the card or to pass in a designated area to be recognized. Fully automatic recognition is realized, which can avoid problems such as the driver having to move the window close to the reader to swipe the card in bad weather. Advanced anti-collision technology supports multi-label recognition and writing, which can effectively alleviate the jam problem caused by too many vehicles entering and exiting the warehouse and queuing credit cards during peak hours;
Stable operation: The active card has a stable reading distance and is not easily affected by the surrounding environment. Moreover, the active card can effectively break through the shielding effect of the automobile’s explosion-proof metal mesh, and smoothly exchange data with the reader. Using channel isolation technology, multiple devices do not interfere with each other;
Support high-speed mobile reading: The identification card can move at a speed of up to 200 km/h.
High reliability: it can operate normally within the ambient temperature of -40℃-85℃ (MTBF≥70000 hours), especially in the low temperature in the north and high temperature in the south, it has more advantages, which can effectively resist the high dust in the air in the coal mine environment It can ensure the normal use of the equipment in environments such as pollution and rain.
Encrypted calculation and authentication to ensure data security and prevent link eavesdropping and data cracking;
High anti-interference and lightning protection design: There are no special requirements for various interference sources on site, meeting the requirements of the industrial environment, and the installation is convenient and simple.
There is no need to apply for and pay for the ISM microwave frequency band that is open worldwide.
Ultra-low power consumption: long service life, low average cost, and it is safer and healthier for the human body without radiation damage. Configurable microwave module working mode, adjustable transmission power;
Multi-identification: It can identify more than 200 signs at the same time. If there are more than 200 signs on the spot, we have a way to deal with it.
Product Specifications
1. Active proximity card ML-T80/ML-T60
Active proximity card is an active electronic tag that identifies the unique identity of each car. Its main technical performance is as follows:
Recognition distance up to 80 meters (with 2.45G card reader module, in the air)
Working frequency 2.4－2.45G
Receiving sensitivity -80 dbm ～ -90 dbm
Storage space 16M
Expected battery life> 6 years, actual battery life> 2 years.Automatic alarm when the battery is too low
Power-down storage period is more than 10 years
Working temperature -40℃ ～ +80℃
Storage temperature -60℃ ～ +80℃
Anti-electromagnetic interference 10V/m 0.1～1000MHz AM electromagnetic wave
Vibration 10～2000Hz 15g three axes
Free fall to 1500mm concrete floor, twice on each side
2. Reader (card reader) 2.4G card reader series
The main technical performance is as follows:
Recognition speed 100 tags/sec (ID number only)
Anti-collision processing 200 tags read at the same time
Recognition distance up to 80 meters (with ML-T80/ML-T60 series tags, in the air)
Working frequency 2.4－2.45G
Output power ≤3 dBm (adjustable by software)
Microwave communication error detection CRC16 cyclic redundancy check
Antenna polarization directional/omnidirectional
Power supply +3.0V ~3.6VDC
Communication interface RS232/485 Baud rate: 9600-19200
Working temperature -40℃ ～ +80℃
Storage temperature -60℃ ～ +80℃
Reliability MTBF ≥ 70000 hours
After-sales service:
Suzhou Mulan Electronics Co., Ltd. promises to
1. Lifetime maintenance is free and technical guidance is provided. Once a failure occurs, the equipment can be quickly replaced; if it exceeds one year, the corresponding cost will be charged.
2. Help solve the fault within 7 working days (in case of force majeure, it can be negotiated); provide remote technical guidance within one working day after receiving the repair request;
3. The overall construction period of the system can be completed within 30 working days
4. If you are not satisfied with the current system, we can tailor products for you with short cycle, low price and good quality.
contact us:
Mailing address: Building 1, Industrial Building, No. 625, Binhe Road, High-tech Zone, Suzhou City, China
Phone: (86)-0512 -87655880
Company Fax: (86)-0512-87655879
Service Hotline: (86)-0512-87655880
Email: [email protected]
QQ: 909458011
MSN: [email protected]
Website: http://www.mlrfid.com
Copyright Notice
The copyright of this technical solution belongs to Suzhou Mulan Electronic Technology Co., Ltd. Without written permission, no institution or individual may quote it in any form, otherwise Suzhou Mulan Electronic Technology Co., Ltd. reserves the right to pursue legal responsibility.
Hope to cooperate sincerely!
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