Laser and video infused automatic railway snow depth multi-point measuring device and method

Abstract

The invention discloses a laser and video infused automatic railway snow depth multi-point measuring device and method. The device comprises a laser snow depth sensor, a pan-tilt, a support, a first fixing frame, a second fixing frame, a data processing platform, a terminal computer, a snow measuring ruler, a ground reference plate, a tilt angle sensor and a network camera. The data processing platform comprises a data processing unit and a 3G router. A 3G mobile data communication platform is adopted for the 3G router. The laser snow depth sensor is fixedly arranged on the pan-tilt and rotates along with pitching and rotating of the pan-tile, output signals are collected and processed through the data processing platform and are transmitted to the terminal computer through a communication unit. By means of the laser and video infused automatic railway snow depth multi-point measuring device and method, automatic multi-point snow depth measuring can be achieved, video recording is introduced to shoot images of the snow measuring ruler and the ground snow accumulation situation, the measuring accuracy of the laser snow depth sensor is verified, meanwhile, the ground snow accumulation image contour is recognized, and the snow accumulation distribution condition of the surrounding ground is estimated. The video infused automatic railway snow depth multi-point measuring device and method are high in measuring accuracy, good in stability, high in timeliness and convenient to use.

Description

technical field [0001] The invention relates to the technical field of meteorological observation, in particular to a multi-point automatic measurement device and method for railway snow depth by fusion of laser and video. Background technique [0002] Light snowfall is not harmful to railway transportation, but heavy snow or flying snow will seriously affect transportation safety and efficiency, and avalanches may cause railway safety accidents. Through the real-time monitoring of snow conditions along the railway, it can effectively avoid railway safety accidents caused by snow disasters, improve transportation safety and transportation efficiency, and provide quantitative reference for railway safety operation. [0003] Snow depth is the vertical depth from the snow surface to the ground. The traditional snow depth measurement method is the manual observation method, and a snow ruler or a measuring rod with the same scale is inserted into the snow to the ground surface t...

AI Technical Summary

Problems solved by technology

Factors such as wind speed, uneven snow surface, low blowing snow, and lower temperature will affect the measurement results of the ultrasonic sensor, making the measurement distance shorter and the measurement accuracy lower

Laser sensors measure snow depth with high precision and good real-time performance. However, the traditional single laser sensor for snow depth measurement may obtain different measurement results due to the different positions of the laser detection points, resulting in wrong scheduling of trains or false alarms.

In addition, the snow depth is measured by ultrasonic sensors and laser sensors, and only the same point is continuously measured. When this observation point is affected by factors such as man-made damage, the device will misreport data or the observation point will be abolished.

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