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Status and needs
Radio frequency identification (RFID) technology is an automatic identification technology that has matured since the 1980s. It uses radio frequency for non-contact two-way communication to exchange data to achieve the purpose of identification. Compared with traditional magnetic cards and IC cards, the biggest advantage of radio frequency cards is non-contact, so no manual intervention is required to complete the identification work, which is suitable for realizing the system It is automated and not easily damaged. The rapid development of RFID technology has made its application grow stronger day by day, and the relevant state departments also attach great importance to it. The Ministry of Science and Technology “China RFID Development Strategy White Paper” was officially released, and the major RFID projects of the National High-Tech Research and Development Program (863 Program) were fully launched. The development and application of RFID has broad prospects.
At present, the fusion of RFID technology and sensors or other technologies is developing rapidly. Among them, the real-time location system-RTLS (Real Time Location System) is the most dynamic technology. There are many methods for positioning at present. Among them, the use of signal strength difference is the easiest technology with the least hardware overhead. However, this technology has relatively high requirements for the consistency of wireless products and positioning algorithms. The specific method is through RF signals. Propagation loss model, calculate the distance between the reader and each tag, and use the algorithm to find the coordinate position of each radio frequency tag.
Brief introduction of technical solution:
The difference in signal strength from a tag to three points at different locations is converted into a distance difference, and the position of the tag can be located according to the known coordinates and distance difference of the three reading heads.
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Program features
1) Efficient RFID communication protocol
The product meets the international standard of active RFID technology (ISO18000-7), and contains an air interface protocol with independent intellectual property rights and a multi-tag reading and anti-collision algorithm, and has high-speed and efficient reading capabilities.
2) Miniaturization and high performance
The product maintains the characteristics of miniaturization, low power consumption, and high technical performance.
In an open and non-interference environment, the effective reading distance of the electronic label card is 70 meters, and the maximum reading distance can reach 100 meters; the communication distance between devices can reach more than 200.
3) Realize positioning
Through the cooperation with the positioning middleware, accurate positioning of the label can be realized, and the positioning error is plus or minus 3m
4) Product versatility
The product has strong self-organizing network capabilities. Based on the wireless local area network 802.11 protocol, the product has the point-to-point wireless data communication function. The product deployment and deployment are very convenient and quick. While adapting to the needs of rapid and flexible mobility, it also greatly reduces The implementation cost of the system (such as the network).
5) The product has active call function and location search function
The product has an active call function. In dangerous and emergency situations, it can send emergency help messages through the manual button function to provide an extra layer of protection for safe production.
The product is equipped with buzzer or light flashing prompts, which is convenient for personnel to find quickly.
Company website:http://www.fhteck.com
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