2.45G Long Range Active RFID System
——Applications at government offices, residential quarters, parking lots, and factory gates
[Abstract] The system uses the world's leading microwave frequency range long-range radio frequency identification technology, and each vehicle is equipped with a pre-registration active sensor card (person wearing a card).
First, the system introduced
The system uses the world's leading microwave frequency range long-range radio frequency identification technology. Each vehicle is equipped with a pre-registered active sensor card (person wearing a card). The active proximity card will continuously emit microwave signals. When the remote reader installed near the entrance and exit receives the proximity card signal, the remote reader sends the card signal through the 485 interface or RS232 or Ethernet or USB communication. To the channel controller or directly to the computer. The channel controller (or computer) determines the legitimacy of the card. If it is valid, the relay on the controller will act to open the barrier and allow the vehicle to enter or exit. Otherwise, it will not be released. A computer can be installed at the guard to monitor the real-time entry and exit records of vehicles or people, including vehicle departments, driver names, license plates, and photos. With the image capture module, when the vehicle enters or exits, the current vehicle photograph is captured and saved in the database.
The following is a schematic diagram of three typical application modes:
Mode 1, single channel does not judge the access control:
The width of the channel is 2-4 meters. The reading distance is preferably limited to 10 meters and can be adjusted. If necessary, it is not necessary to park. The speed is controlled to be less than 60 km/h. The RFID card selects the ML-T80/ML-T90 active electronic tag, which is installed behind the windshield of the car or in a suitable place in the vehicle. Wear your chest. The reader reads and recognizes, and does not recognize entry or exit. This product can be used with ML-M2000 readers, which can be placed on the janitor's desktop or can be installed outdoors. When installed outdoors, it should be protected by a metal box; the reader antenna can be fixed in the channel with stainless steel posts. Beside or overhang the appropriate position on the top of the channel. During the installation, adjust the height and angle of the ground to the best according to the actual situation on the site.
Mode 2, single channel can determine the access control:
The width of the channel is 2-4 meters. Card readers are set at intervals of 10 meters to 20 meters next to the channel. The reading distance is preferably limited to 10 meters or less and can be adjusted. If it is necessary, it is not necessary to park. The speed is controlled to be less than 60 km/h. The ML-T80 or ML-T90 active electronic tag is selected on the proximity card, and it is installed behind the windshield of the car or in a suitable place in the car. The system judges the entrance and exit according to the order in which the reader reads it. The first reading is the first recognition. This product can be used with ML-M2000 readers, which can be placed on the janitor's desktop or can be installed outdoors. When installed outdoors, it should be protected by a metal box; the reader antenna can be fixed in the channel with stainless steel posts. Beside or overhang the appropriate position on the top of the channel. During the installation, adjust the height and angle of the ground to the best according to the actual situation on the site. This mode generally uses 2 card readers.
Mode 3, dual channel access control:
The total width of the channel is 4-6 meters. Once in and out, readers are installed at the entrance and exit respectively. The reading distance is limited to 10 meters and can be adjusted. The reader can read it and recognize it. If necessary, it is not necessary to stop, and it is advisable to control the speed below 60 km/h. The ML-T80/ML-T90 is selected as a proximity card, which is installed behind the windshield of the car or in a suitable place in the car. This product can be used with ML-M2000 readers, which can be placed on the janitor's desktop or can be installed outdoors. When installed outdoors, it should be protected by a metal box; the reader antenna can be fixed in the channel with stainless steel posts. Beside or overhang the appropriate position on the top of the channel. During the installation, adjust the height and angle of the ground to the best according to the actual situation on the site. Two readers should be installed in this mode.
Second, the system composition
1, RFID remote readers;
2, long-distance electronic tags;
3, controller; (If you do not control you can not choose)
4, computer;
5, vehicle sensor + loop sense coil; (if you do not control can not choose)
6, directional antenna; (if you do not judge omnidirectional antenna)
7, remote control (if you do not control can not choose)
8, mounting bracket (optional)
9, special switching power supply
10. Barrier (if you do not control you can not choose)
11, camera (can not choose not to take pictures)
12, video capture card (can not choose not to take pictures)
13, LED display (optional)
14, voice module (optional)
15, infrared sensor (optional)
work process:
读写 When an employee (vehicle) holds an electronic tag through a valid identification area, the reader automatically reads the tag;
◇ When the card number is read, the employee’s personal data and vehicle data corresponding to the card are retrieved in the database;
â—‡ If the information of this card has been entered and the status is active (the company's vehicle), the basic information and photos of the person corresponding to the card (the basic information of the vehicle) are displayed if necessary;
â—‡ If there are multiple people and cars passing continuously, each person's information is displayed in turn, but the vehicle's display is not transmitted.
â—‡ The 2.45G active electronic tag has a battery indicator that can be displayed on the computer system when the battery is under voltage.
â—‡ Cardless people and vehicles will be monitored by infrared.
Third, the program features
Distance: Easy to read within 10 meters. Due to the actual requirements of vehicle access control, the reading distance should not be too long. This program does not require manual proximity to swiping cards or passes through the designated area to recognize it and achieve full automatic recognition. This can avoid the problem that the driver must shake the window near the reader to swipe the card in bad weather. Advanced anti-collision technology supports multi-tag recognition and writing. It can effectively alleviate the jams caused by too many in-cargo vehicles and queuing credit cards during peak hours.
Stable operation: The active card reading distance is stable and not easily affected by the surrounding environment. Moreover, the active card can effectively break through the shielding of the car's explosion-proof metal mesh and smoothly exchange data with the reader. Using channel isolation technology, multiple devices do not interfere with each other;
Supports high-speed mobile reading: The identification card can move at speeds up to 200 km/h.
High reliability: The ambient temperature is -40°C-85°C and can fully operate normally (MTBF≥70000 hours), especially in the northern low temperature and southern high temperature conditions, which can effectively resist the high dust in the air in the environment of the coal mine area. In the environment of contaminants and rain, it can ensure the normal use of the equipment.
Encryption 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 the site, to meet the requirements of industrial environment, easy installation.
The global open ISM microwave band requires no application and payment.
Ultra-low power consumption: long service life, low average cost, and safety, healthier and no radiation damage to the human body. Configurable microwave module operating mode, adjustable transmit power;
Multi-identity: More than 200 labels can be identified at the same time. If there are more than 200 labels on the site, we have a way to handle them.
Fourth, the main product introduction
1, active sensor card ML-T80/ML-T90/T65
Vehicle active electronic tag ML-T65
The active sensor card is an active electronic tag that identifies the unique identity of each car. Its main technical performance is as follows:
Identify the distance up to 80 meters (with 2.45G reader module, air)
Working frequency band 2.4-2.45G
Receiver sensitivity -80 dbm to -90 dbm
Storage space 16M
Expected battery life >6 years, actual battery life >2 years. Automatic alarm when the battery is low
Operating temperature -40°C to +80°C
Storage temperature -60°C ~ +80°C
Anti-electromagnetic interference 10V/m 0.1～1000MHz AM AM electromagnetic vibration 10～2000Hz 15g Three axes free fall 1500mm concrete ground, twice for each side
2, reader (swipe card reader) 2.4G reader series
Long Range Reader for Vehicles ML-M2000
Waterproof and explosion-proof card reader ML-M3000
The main technical performance is as follows:
Distance can be adjusted on site: 32 levels (adjustable in software)
Recognition speed 100 tags/second (ID number only)
Anti-collision handling 200 labels at the same time reading identification distance up to 80 meters (with ML-T80/ML-T90 series labels, air)
Working frequency band 2.4-2.45G
Output power ≤ 0 dBm (software adjustable)
Microwave Communication Error Detection CRC16 Cyclic Redundancy Check Antenna Polarization Direction/Omnidirectional Power Supply +3.0V ~3.6VDC
Communication interface RS232/485/usb/tcpip/gprs/weigen26 baud rate: 9600-19200
Operating temperature -40°C to +80°C
Storage temperature -60°C ~ +80°C
Reliability MTBF ≥ 70000 hours
3, removable PDA
Remote PDA ML-M4000P
Software features:
1. Software encryption 2. Date limit 3. User management 4. Parameter setting 5. System setting
6. Vehicle personnel information 7. Sound prompts 8. Data backup 9. Data query 10. Read head management
11. Data Import 12. Report Printing 13. Custom Functions