System and method for negative testing of anti-collision capacity of RFID reader

Abstract

The invention discloses a system and a method for negative testing of anti-collision capacity of an RFID reader, the system consists of a standard test environment, a horizontal guide track, a guide track sliding block, a sliding block controller, a tag support, an electronic tag array, a receiving antenna support, a receiving antenna, a frequency spectrum analyzer, a transmitting antenna support, a transmitting antenna, a reader to be tested and a control computer, and the method comprises the following steps: carrying out capture and analysis on wireless communication signals between the reader and the tag in free space, carrying out statistics of the number and the time of idle time slots, effective time slots and collision time slots, and calculating the throughput of the reader when reading multiple tags, thereby being used for realizing the rapid evaluation of the multi-target rapid identification capacity represented by the RFID reader when reading the multiple tags through the analysis of the air interface communication process between the electronic tag and the reader under the repeatable conditions.

Description

technical field [0001] The invention relates to the field of RFID technology, in particular to a system and method for evaluating the anti-collision capability of an RFID reader-writer through a reverse test. Background technique [0002] The full name of RFID is radio frequency identification (Radio Frequency Identification), which is a non-contact automatic identification technology realized by radio frequency technology. RFID tags have the characteristics of small size, fast read and write speed, various shapes, long service life, reusable, large storage capacity, and can penetrate non-conductive materials. Combining RFID readers can realize multi-target identification and mobile target identification , Further, through the combination with Internet technology, it can also realize the tracking of items and the sharing of information on a global scale. RFID technology is used in logistics, manufacturing, public information services and other industries, which can greatly ...

AI Technical Summary

Problems solved by technology

However, since the time slot-based anti-collision algorithm contains random numbers, that is, the electronic tag will generate a random number RN after receiving the reader-writer inquiry command, and respond in the subsequent RNth time slot, so this It is difficult to get accurate reading time by this test method

In addition, the computing power of the digital processing chips inside different readers is different, which will also lead to differences in the processing speed of the anti-collision algorithm for different algorithm complexities. An effective way to improve the anti-collision ability of the device

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