Measuring system and measuring method for power contour of reader-writer antenna

Abstract

The invention discloses a measuring system and a measuring method for a power contour of a reader-writer antenna. The measuring system comprises a reader-writer arranged outside a microwave dark room, middleware, a rotary table controller, a sliding block controller, a host computer and a drawing printer, wherein an electronic tag, a rotary table, a horizontal guide rail, a bracket, two positioning sensors, the reader-writer antenna and a sliding block are arranged in the microwave dark room. The method reflects a reader-writer response electronic tag zone to a certain degree by measuring feedback points with the same power in a three-dimensional direction of the reader-writer antenna, so the method has deeper realistic meaning than a directional diagram. An electromechanical device ensures automatic performance of the measuring method, a testing environment provides free space and a test result becomes more persuasive and reliable. The measuring system and the measuring method have a reference value for the field application of a wireless radiofrequency recognition system and the layout of a tag.

Description

technical field [0001] The invention belongs to the technical field of electronic information, and mainly relates to an automatic measurement system and a measurement method for a radio frequency identification (RFID) system. Background technique [0002] Antenna pattern measurement has long been a focus of wireless device testing. For radio frequency identification systems, especially for UHF and microwave frequency bands, the test of the directional pattern of the reader antenna is more intuitive. [0003] Based on the technical principle of the radio frequency identification system, the information exchange between the reader and the electronic tag forms a one-to-many linear mode, so there will be a problem in the test process: in what range the electronic tag can be read and written by the device Responding to, within which range the electronic tag cannot be responded to? The dividing line formed by the response area and the non-response area has a very realistic guidi...

AI Technical Summary

Problems solved by technology

[0003] Based on the technical principle of the radio frequency identification system, the information exchange between the reader and the electronic tag forms a one-to-many linear mode, so there will be a problem in the test process: in what range the electronic tag can be read and written by the device Respond to, within which range the electronic tag cannot be responded to? The dividing line formed by the response and non-response areas has a very realistic guiding effect on the RFID system in practical applications

Obviously, whether it is the rotation of the azimuth angle or the movement of the radial direction, if it is limited to manpower, the workload will be huge, and it will introduce unnecessary interference to the test process, and the accuracy of the test system cannot be guaranteed.

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