Infrared detection device, channel gate and channel gate control method

Abstract

The invention discloses an infrared detection device, a channel gate and a channel gate control method. The infrared detection device comprises a plurality of infrared emission modules and infrared receiving modules which are arranged oppositely, wherein the infrared receiving modules are used for receiving emission signals, demodulating the emission signals to obtain baseband signals, and judgingwhether the emission signals are emitted by the corresponding infrared emission modules or not according to the baseband signals. The infrared detection device can be used for efficiently, real-timely and accurately detecting in a matched manner; and the infrared emission modules in the infrared detection device emit modulated emission signals, the infrared receiving modules can demodulate the emission signals to match with the corresponding infrared emission modules, and the corresponding infrared emission modules can be judged more accurately through an analytic protocol, so that infrared interference signals in the environment can be eliminated.

Description

technical field [0001] The present invention relates to the field of infrared technology, in particular to an infrared detection device, a channel gate and a control method for the channel gate. Background technique [0002] The existing infrared equipment of the gate system uses the IO control method, which has many lines and is inconvenient for wiring; secondly, the infrared transmitting module and the infrared receiving module also need to be connected with a communication line to synchronize data, which brings great advantages to installation and wiring. It is very troublesome; finally, the infrared transmitting module only sends a single high and low level signal, and the infrared receiving module only judges the receiving state of the infrared device by the received high and low level signals. In the gate, the distribution distance of infrared equipment is relatively close, and the infrared emission module has a certain angle. The lack of differentiation of the transmi...

AI Technical Summary

Problems solved by technology

[0002] The infrared devices of the existing gate system all use the IO control method, which has many lines and is inconvenient for wiring; secondly, the infrared transmitting module and the infrared receiving module need to be connected by communication lines to synchronize data, which brings great inconvenience to installation and wiring. It is very troublesome; finally, the infrared transmitting module only sends a single high and low level signal, and the infrared receiving module only judges the receiving status of the infrared device through the received high and low level signals

In the gate, the distribution distance of infrared devices is relatively close, and the infrared emission module has a certain angle. The transmitted signals are indistinguishable, which will easily lead to mutual interference of signals, affecting the real-time performance and the accuracy of infrared detection.

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