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Human body safety protection laser sensor used for revolution door

A laser sensor and safety protection technology, applied in revolving doors, safety arrangements, optical devices, etc., can solve problems such as complete protection of laser sensors installed on door frames, incomplete protection of infrared optical safety protection sensors, injury and other problems

Active Publication Date: 2017-11-21
B E A ELECTRONICS BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The present invention aims at at least one of the problems that the existing contact pressure deformation sensor will cause harm to the user's body, the infrared optical safety protection sensor cannot be fully protected, and the laser sensor can only be installed on the door frame and it is difficult to form a complete protection , providing a laser sensor for human body safety protection for revolving doors, including: a laser scanning distance measurement part and an application analysis part

Method used

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  • Human body safety protection laser sensor used for revolution door
  • Human body safety protection laser sensor used for revolution door
  • Human body safety protection laser sensor used for revolution door

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0114] A human safety protection laser sensor for revolving doors, such as figure 1 with figure 2 Shown, including the laser scanning distance measurement part and the application analysis part. The laser scanning distance measuring and calculating part includes: a laser emitting device, a laser deflection device, an optical signal receiving device, and an analysis and processing device. The installation position of the sensor is the top of the door leaf 2 of the revolving door, 20cm away from the vertical outer frame of the door leaf 2 of the revolving door. Wherein, the laser emitting device emits pulsed laser signals to the laser deflection device. The laser deflection device deflects the directional pulse laser signal to a preset angle under the control of the analysis and processing device, and forms a laser scanning area 3 . The rotation angle of the laser scanning area 3 is 110°. The laser scanning area 3 is located at the front side of the area of ​​the door leaf ...

Embodiment 2

[0122] Based on the laser sensor for human body safety protection for revolving doors described in Embodiment 1, wherein the trigger point distance analysis module first uses a delay time converter (TDC: time to digital converter) to calculate the time between the laser pulse emission and the return signal received. Time difference. Then, according to the time difference and the speed of light, the calculator further calculates the flight distance of the light pulse (TOF: time of flight), that is, the distance information between the trigger point and the sensor.

Embodiment 3

[0124]Based on the human body safety protection laser sensor for the revolving door described in Embodiment 1, wherein the preset distance information is completed through an initialization operation, the process is as follows: first, under the condition that no user enters or exits the revolving door, the sensor is turned on, so that It scans according to the preset maximum scanning angle, and makes the revolving door leaf rotate according to the preset direction and speed. Then, the sensor uses the trigger point distance information received by each scanning point as the preset distance information.

[0125] Wherein, during the initialization operation, when the same scanning point has two or more trigger point distance information within the same scanning period, the distance information of the trigger point closest to the sensor is used as the preset distance information. When the distance information of two or more trigger points appears at the same scanning point in the ...

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Abstract

In order to make up defects of the prior art, the invention provides a human body safety protection laser sensor used for a revolution door. The human body safety protection laser sensor includes a laser scanning ranging part and an application analysis part. The laser scanning ranging part includes a laser emitting device, a laser deflecting device, an optical signal receiving device and an analysis processing device, wherein the laser emitting device emits laser signals to the laser deflecting device; the laser deflecting device deflects laser signals for a preset angle and forms at least one laser scanning area; the optical signal receiving device receives returned laser signals and transmits the signals to the analysis processing device; the analysis processing device includes a triggering point distance analyzing module obtaining distance information of a triggering point through analysis according to the signals emitted by the optical signal receiving device; and the application analysis device includes a safety analysis module controlling the motion state of the revolution door through a door control device after analysis according to the distance information of the triggering point.

Description

technical field [0001] The invention belongs to the technical field of automatic door sensors, and in particular relates to a human body safety protection laser sensor for revolving doors. Background technique [0002] The revolving door is a field door that combines the advantages of various doors. Its spacious and high-style design creates a luxurious atmosphere, which can be called the finishing touch of a building. And the revolving door enhances the wind resistance and reduces the energy consumption of air conditioning, which is the best choice for isolating airflow and saving energy. [0003] Existing revolving doors generally include automatic revolving doors and passive revolving doors. Passive revolving doors are not equipped with driving devices and sensing devices, and rely on personnel to push and rotate, and their safety, practicability and trial experience are weaker than automatic revolving doors. The automatic revolving door is driven and rotated by an addit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/04G01C3/10G01S17/04
CPCG01C3/10G05B19/04E06B3/90G01S17/42G01S17/88E05F15/78E05F2015/434E05F15/608G01S17/04G01S7/497G01S7/4808G01B11/026G01C3/02E05Y2900/132E05F15/73G01S7/4817G05B9/02
Inventor 苏丹刘冀湘徐玉河
Owner B E A ELECTRONICS BEIJING
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