Visual passage logic gate device, visual passage logic method and passage method

Abstract

The invention discloses a visual passage logic gate device, a visual passage logic method and a passage method, and relates to the field of rail transit and security access control. The device comprises a gate and a visual passage logic device, infrared photoelectric sensors are respectively installed in a rectangular area where a door leaf of the gate is located, and the visual passing logic device is installed right above a gate channel and is in communication connection with the gate. The passing object types and passing behaviors are detected and judged through a visual sensor, passing digital logic signals are generated, and the gate executes according to the signals. The visual passage logic gate device, the visual passage logic method and the passage method can automatically adapt to human body characteristics in different regions, do not need to change hardware parts, such as a sensor, etc., do not need to re-debug and track software for a long time, can greatly reduce the number of cables in the gate, reduce the wiring complexity, reduce the size of the gate, and reduce the production, test and maintenance cost.

Description

technical field [0001] The invention relates to the fields of rail transit and security access control, in particular to a visual passage logic gate device, a visual passage logic method and a passage method. Background technique [0002] Most of the existing gates use the through-beam sensor as the main traffic logic monitoring method. There are a certain number of through-beam sensors distributed in the gate. The through-beam sensor is the transmitter on one side of the gate, and For the receiving end, when there is no passing behavior in the gate channel, the sensor is a smooth optical path from the transmitting end to the receiving end. When passengers pass through the gate, they will block the optical path of the sensor in the gate in a certain order within a certain period of time, causing the optical path to be blocked. Through the timing acquisition of the on-off of the optical path, the on-off state is converted into computer binary 0 and 1 , a specific combination...

AI Technical Summary

Problems solved by technology

Due to the different layouts, when people pass through the channel, the timing interval of the sensor being blocked will change differently, which may also lead to changes in the original judgment combination. For example, the judgment that used to rely on a combination of 3 pairs of sensors may now rely on 2 pairs of sensors. Or 4 pairs of sensors to judge

Therefore, the change of the sensor layout will cause the human body to generate significantly different mathematical logic combinations when passing through the gate. It is necessary to modify the judgment conditions and algorithms, and match the corresponding general logic software version. This will be very cumbersome, and the adaptation and adjustment of the algorithm will lead to The reliability and stability of equipment and software have declined, and most projects need long-term tracking and adaptation when encountering common logic problems, resulting in increased software, hardware and project costs

[0005] In addition, in order to achieve the effect of traffic logic identification and control, it is generally necessary to distribute no less than 16 pairs of through-beam sensors and no less than 2 pairs of diffuse reflection sensors on the gate. The huge number of cables brings a huge workload to production and maintenance

If a grating device is used, at least three to four cables are required, and these sensors or gratings must be placed according to a certain distance and space, which will cause the gate to have a certain length in volume to accommodate these hardware facilities, which improves It reduces the cost of hardware manufacturing, and also makes the turnstile channel very long and occupies a large area, which is not suitable for applications in compact environments.

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