All-weather high speed railway vehicle-mounted obstacle detection system and method
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A technology of high-speed railway and detection system, applied in railway car body parts, railway signal, railway signal and safety, etc., can solve the problem that cannot meet the requirements of high-speed railway, can only be installed outside the car body, and has poor penetration of window glass. problems, to achieve high target detail resolution and all-weather working ability, easy installation, small size
Active Publication Date: 2015-03-25
CSR HANGZHOU RAIL TRANSIT
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This utility model patent uses mid-wave infrared imaging technology for track obstacle identification, which can avoid the influence of severe weather conditions such as heavy fog and night to a certain extent, but the detection distance of t
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Embodiment 1
[0044] This embodiment provides an all-weather high-speed railway vehicle-mounted roadblock detection system, the composition principle is as follows figure 1 As shown, the detection system mainly includes: lens, short-wave infrared imaging device, attitude adjustment device, auxiliary lighting device, vehicle main control system, display device, alarm device, train operation monitoring and recording device interface (LKJ interface) and storage device.
[0045]The lens is connected with the short-wave infrared imaging device for front track imaging; the auxiliary lighting device is in the same direction as the lens and is used for lighting the lens field of view; the attitude adjustment device drives the lens and auxiliary lighting device to intelligently adjust its posture in real time to ensure that the front track view is within In the field of view of the lens and auxiliary lighting; the short-wave infrared imaging device is connected with the vehicle-mounted main control ...
Embodiment 2
[0059] An all-weather high-speed railway vehicle-mounted roadblock detection method, the implementation steps are as follows:
[0060] 1) The on-board main control system configures the working parameters of the short-wave infrared imaging device according to the instructions, and detects the external light intensity to switch the auxiliary lighting device;
[0061] 2), and control the image sampling frequency according to the vehicle speed, and start to collect the front track image in real time;
[0062] 3) Store the dynamic image sequence frames obtained by the short-wave infrared imaging device in the data buffer area, waiting for processing;
[0063] 4), DSP preprocesses the image sequence frames in the data buffer area, including the following steps:
[0064] 4-1) For infrared images, electronic image stabilization algorithm is used to eliminate image shake;
[0065] 4-2) Use the median filter method or wavelet noise reduction algorithm to filter and reduce noise on th...
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Abstract
The invention discloses an all-weather high speed railway vehicle-mounted obstacle detection system and method. According to the detection system, a camera lens is connected with a short wave infrared imaging device, a posture adjusting device drives the camera lens and an auxiliary lighting device to intelligently adjust the posture of the camera lens and the posture of the auxiliary lighting device in real time, the short wave infrared imaging device is connected with a vehicle-mounted master control system, the vehicle-mounted master control system is connected with a display device, an alarm device and a storage device, and a train operation monitoring and recording device interface is used for communication between the vehicle-mounted master control system and a train operation monitoring and recording device to obtain train operation and track related information. The detection method mainly comprises the steps of real-time front track image collection, image sequence frame processing, real-time camera lens and auxiliary lighting device orientation adjustment, obstacle detection and notification, and the like. According to the all-weather high speed railway vehicle-mounted obstacle detection system and method, the higher target detail resolution ratio and all-weather operation capacity are achieved, real-time communication can be carried out between the all-weather high speed railway vehicle-mounted obstacle detection system and the train operation monitoring and recording device, information such as front track information and train operation speed is obtained, and the false alarm rate can be effectively lowered.
Description
technical field [0001] The invention relates to high-speed railway safety monitoring technology, in particular to an all-weather high-speed railway vehicle-mounted roadblock detection method. Background technique [0002] Train driving safety has always been a hot research topic, especially the six major speed increases of China's railways, which have brought about major changes in railway transportation. The increase of train running speed brings more potential safety hazards and safety risks. The rapid development of high-speed railway technology has ensured the safety of my country's high-speed railways. However, due to factors such as natural disasters and man-made destruction, coupled with the high speed of trains, it is very difficult to ensure traffic safety, which is specifically reflected in: 1. During the operation of the train, if there is an obstacle on the track, the braking distance required for emergency braking will be long; 2. After the speed of the train i...
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