Pattern recognition based barrier-free channel machine bidirectional detection method

Abstract

The invention relates to a pattern recognition based barrier-free channel machine bidirectional detection method. The method comprises: (1) representing the state of each infrared pair tube by 4 variables; (2) according to the 4 variable values in step (1) and current infrared pair tube states, judging whether an entry mode or an exit mode exists when passing the barrier-free channel machine; (3) according to the mode judged in step (2) and the corresponding variable value, comprehensively judging whether someone passes; and (4) repeating step (1)-(3). The method disclosed in the invention employs a singlechip to make real-time detection on states of the infrared pair tubes, and conducts processing according to the collected data so as to perform judgment on the personnel getting in and out. The method saves CPU resources, has high real-time performance of detection, has no special demand for the personnel passing speed and strong adaptability, and does not need to increase the number of the infrared pair tubes. When someone takes something or waves hands to a large range, misjudgment cannot be brought about, and the method can also prevent dogging.

Description

technical field [0001] The invention relates to a two-way detection method for a barrier-free passage machine based on pattern recognition, which belongs to a method for detecting personnel entry and exit by a barrier-free passage machine. technical background [0002] The channel machine is a new product in recent years, which is mainly used in public places such as schools, enterprises and institutions where there is a large flow of people, and the entry and exit of personnel needs to be controlled. Because it can automatically identify the people entering and leaving, and record information such as the time of personnel entering and leaving, it can effectively prevent the entry of non-building personnel such as thieves and promotional personnel, greatly improving the safety of the place, and also has personnel sign-in and attendance statistics and other functions. The barrier-free access machine does not have any blocking devices, so it can pass through more conveniently...

AI Technical Summary

Problems solved by technology

This detection method is simple, but it is particularly susceptible to interference. When a person walks with a large wave of hands, or when carrying something, it is easy to be misjudged as two people passing by, causing false alarms, and when the flow of people is large, many people pass continuously. When, several people cannot be accurately detected

There are other methods of digital signal processing by collecting video through the camera, and using a large number of infrared tubes to form an array for inspection, but the cost of these methods is too high

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