Low-power consumption active anticollision electronic label and operation method thereof

Abstract

The invention discloses an active anti-collision electric label with low power consumption and a working method thereof, which comprises a radio frequency transceiver chip (1), a ceramic antenna of 2.4G (2) and a power (3) which are connected with the external of the radio frequency transceiver chip; the radio frequency transceiver chip (1) contains a 8051 one-chip computer module, a radio frequency transceiver module and a flash memorizer; the internal memorizer records the ID information of the staff (or equipment) who (which) is provided with an electric label. The electric label is powered by a battery, and the transmission distance is long; the label employs a special work-dormant mechanism and a simplified identification communication process, thus the labels have extremely low power consumption and the battery has long service life; the labels are provided with communication channel free and busy interception mechanism, embedded with a multi-label anti-collision retreat algorithm, which can improve identification effect of multi-label simultaneous recognition.

Description

technical field [0001] The invention relates to an active electronic tag used for identity identification and its working method, in particular to an electronic tag used for identification of mine personnel and wagon management system and its working method. Background technique [0002] At present, there are two types of electronic tags used for identification, passive and active. The disadvantages of passive electronic tags are low reading efficiency, limited transmission distance, and the high transmission power of the card reader, which is easy to interfere with other devices. Therefore, electronic tags used for long-distance (greater than 10 meters) identification generally use active power supply. For active electronic tags, how to reduce its power consumption and prolong its effective use time to reduce maintenance costs, and at the same time have a high concurrency recognition performance of group targets in a moving state to ensure the accuracy of the system has alw...

AI Technical Summary

Problems solved by technology

[0003] The patent No. and the title of the invention are respectively CN 1885300 and the patent of the People's Republic of China "Low Power Consumption Active Electronic Tag Communication Mode" discloses a reading and working method of an active electronic tag, but it has the following disadvantages: 1 ) Since the tag is not near the reader most of the time under normal conditions, the tag will continue to enter the query mode, and its waiting time T2 in the query mode should exceed 2 times the single sending time of the reader, so that the tag can receive For a complete data packet, the working time at this time is too long, so that the power saving performance of the tag is not obvious; 2) The tag needs to wait for the response of the reader when reporting information to the reader, which prolongs the time for a single data report ;3) Tags did not mention the channel busy listening mechanism and the corresponding backoff algorithm when reporting data, so that mutual interference and conflicts may occur when tags report data, reducing the success rate of communication

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