An electronic license plate intelligent reading system and its high-efficiency communication control method

Abstract

The invention discloses an intelligent electronic license plate reading system and a high-efficiency communication control method thereof. The method comprises the following steps of: firstly grouping electronic tags at random when the plurality of electronic tags enter the range of radio waves at the same time, sequencing the groups at random to realize the random avoidance among the groups, and carrying out collision detection and tag arbitration in the groups. According to the system and the method, the collision probability of the electronic tags can be effectively reduced, the plurality of electronic tags within the radio wave range of a radio frequency reader-writer can be quickly identified, vehicles are convenient to pass quickly, and the blockage of channels can be avoided.

Description

technical field [0001] The invention relates to an electronic license plate intelligent reading system and a high-efficiency communication control method thereof. Background technique [0002] With the rapid development of RFID technology, the electronicization of automobile license plates has become the development trend and necessity of motor vehicle management. Electronic license plate has led the mainstream in the field of automatic identification of motor vehicles with its passive, long recognition distance, anti-counterfeiting, anti-demolition, moderate price, refined and compact, and is widely used in urban intelligent transportation and enterprise vehicle management systems. economic benefits. The electronic license plate intelligent reading system is generally composed of electronic tags installed on motor vehicles and radio frequency readers installed at motor vehicle crossings. Since all tags in the same system work at the same frequency, there may be multiple T...

AI Technical Summary

Problems solved by technology

The electronic license plate intelligent reading system is generally composed of electronic tags installed on motor vehicles and radio frequency readers installed at motor vehicle crossings. Since all tags in the same system work at the same frequency, there may be multiple Two tags obtain energy from the reader and send information to the reader. At this time, there will be mutual interference, so that the reader cannot correctly identify the tag, which is called tag conflict.

If there is a conflict, it is easy to cause traffic jams at the crossing

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