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Continuous reflection type laser detection device

A laser detection and reflection technology, applied in the field of laser detection, can solve the problems of missed detection, poor reliability, false detection, etc., and achieve the effect of small divergence angle, reliable and safe detection, and high power density

Inactive Publication Date: 2012-09-19
BEIJING DOVA LASER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] The technical problem to be solved by the present invention is to provide a continuous reflective laser detection device to overcome the above-mentioned defects such as poor reliability, missed detection, and false detection

Method used

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  • Continuous reflection type laser detection device
  • Continuous reflection type laser detection device
  • Continuous reflection type laser detection device

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Embodiment Construction

[0046] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0047] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description The present invention and simplified description do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limit...

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Abstract

The invention relates to a continuous reflection type laser detection device which comprises a laser emitter, a laser receiver, an emitted light reflector and a received light reflector, wherein the emitted light reflector is used for adjusting the direction of laser beams emitted by the laser emitter and leading the laser beams to be reflected to a specified point on the ground to erect a reflected laser source, the received light reflector is used for changing the direction of the laser beams irradiated in by the reflected laser source and leading the laser beams to be irradiated into the laser receiver, and the laser receiver processes and identifies the received laser beams and emits detected normal signals or alarming signals. The detection device is arranged on the inner side of each shielding gate of the high speed railway, the inter-city railway or the subway and emits laser beams to the edge of a station platform, the laser beams scan the full range of riding channel areas along with opening to closing of the shielding gate, and the alarming signals are sent if people are clamped or obstacles block the shielding gates. The continuous reflection type laser detection device is simple in structure, convenient to install and debug, accurate and reliable in test results, strong in photo-electromagnetism interference resistance and adaptive to ground normally-used reflection objects.

Description

technical field [0001] The invention relates to the technical field of laser detection, in particular to a reflective laser detection device, which is suitable for safety detection of gaps between platform screen doors and trains in high-speed railways, intercity railways and subways. Background technique [0002] Screen door (or safety door) systems for high-speed railways, intercity railways, and subways can prevent passengers from falling off the track and reduce parking delays and traffic accidents caused by humans. In order to ensure the safe operation of the train, a certain space needs to be reserved between the train and the screen door. However, a small number of passengers disregarded the safety signal prompts, and when they forcibly got on the bus and had no way out, the human body or the objects they carried might be caught in the gap, which would cause casualties and endanger driving safety. [0003] In order to ensure the personal safety of passengers and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V8/14G01B11/14
Inventor 王启华王东波张琨王海波
Owner BEIJING DOVA LASER TECH
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