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With the large-scale construction of high-speed railways and subways, people’s requirements for driving safety continue to increase, and their application prospects are even broader.
Jiangsu Junzhi Technology Co., Ltd., a leaky cable RFID common antenna temperature collection solution for railway tunnel power transmission, innovatively applied embedded RFID technology, realized the design of RFID and leaky cable microwave common antenna, and completed the high-intensity signal radiation leaky cable design. It has been applied in tunnels and high-speed railways in many provinces and cities.
By embedding the temperature sensor into the passive high-frequency RFID, combining the RFID tag activation power requirements, optimizing the design of the leaky cable signal radiation intensity and the design of the leaky antenna of the microstrip line structure, the leaky cable antenna for temperature sensing and collection is realized, and it is in the direction of the leaky cable length. Continuously set up multiple RFID tags to realize temperature sensing and collection solutions.
This solution integrates a variety of wireless sensor networks, adopts point, line, and surface three-dimensional comprehensive temperature measurement monitoring for different temperature measurement points, and lays along the cable trough through the temperature measurement leaky cable antenna and other cables. , Used for temperature measurement and monitoring of temperature sensitive parts of power supply cables in tunnels and subway trains, realizing real-time over-temperature safety early warning and alarm.
Its advantages not only have the advantages of small footprint, low cost, long life and anti-interference, but also improve the accuracy and reliability of temperature perception. Due to the use of RFID technology, daily maintenance is more convenient.
This solution solves some problems for railway tunnels and subway industry fields.
First, the application of RFID improves the accuracy and reliability of temperature perception.
Second, expand the number of data collection through continuous temperature measurement of a larger length.
Third, compared with the traditional distributed temperature acquisition solution, it has the advantages of small footprint, low cost, long life and anti-interference.
Fourth, the design of the use frequency and coupling loss of the leaky cable.
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