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Automatic passenger car and train hinging method and system based on machine vision

A machine vision and automatic technology, applied in the direction of instrumentation, image data processing, calculation, etc., can solve the problems of unsatisfactory, inconvenient loading and unloading, high operating scene restrictions, etc., to achieve the reduction of operating scene requirements, reduce difficulty, switching efficiency and convenience Ease of improvement effect

Pending Publication Date: 2020-08-28
四川省客车制造有限责任公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current existing train docking technology mainly uses methods such as manual docking installation, fixed track alignment interface, and then electrical or mechanical fixation, which has disadvantages such as inconvenient loading and unloading, and high operating scene restrictions.
For the articulation of road buses that require extremely high flexibility and ease of loading and unloading, traditional methods cannot meet their needs

Method used

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  • Automatic passenger car and train hinging method and system based on machine vision
  • Automatic passenger car and train hinging method and system based on machine vision
  • Automatic passenger car and train hinging method and system based on machine vision

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] A method for automatic articulation of passenger car trains based on machine vision, comprising the following steps:

[0071] S1. Use the auto-focus distortion-free USB camera to automatically focus and obtain distortion-free video streams in real time.

[0072] The camera is installed above the head of the rear car to capture the video stream. The auto-focus distortion-free USB camera is able to acquire distortion-free video streams in real time. Its auto-focus function can ensure clear imaging of the marked image during the articulation process; its non-distortion feature reduces the measurement error caused by distortion when the camera is imaging; the USB interface supports hot-swappable installation and debugging. The camera is installed directly above the windshield in front of the vehicle, its viewing angle is aimed at the ArUco mark fixed at the horizontal position behind the front vehicle, and the pitch angle is 0° (horizontal direction). The camera is connec...

Embodiment 2

[0189] An automatic articulation system for passenger trains based on machine vision, such as image 3 As shown, it includes a camera, a development board and a bus marshalling controller; the camera is used for auto-focusing and obtaining an undistorted video stream; the development board is used for receiving the video stream information of the camera, and processing the image of the video stream, Obtain the distance, relative direction angle and coordinate information of the front and rear passenger cars; the passenger car marshalling controller is used to receive the information processed by the development board, and control the adjustment of the vehicles from the car until the alignment of the front and rear cars to complete the automatic articulation. The specific usage instructions of the camera, the development board and the bus marshalling controller in this embodiment have been elaborated in Embodiment 1 and will not be repeated here.

[0190] It should be appreciat...

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PUM

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Abstract

The invention discloses an automatic passenger car and train hinging method and system based on machine vision. A camera automatically focuses and acquires distortionless video streams in real time; the development board processes the images of the video streams to obtain the distance, the relative direction angle and the coordinate information of the front and rear passenger cars; and the passenger car grouping controller controls the slave car to adjust the car until the front car and the rear car are aligned according to the processed information, and automatic hinging is completed. The operability of the passenger train in the marshalling process is improved, hinging is conducted through a machine vision system convenient to install and use, and the equipment installation difficulty inthe train expanding process can be reduced. According to the method, the limitation of operation scene requirements can be reduced, the docking work can be automatically completed without manual participation, and the switching efficiency and convenience for peak and flat peak are improved; by the adoption of the method, marshalling operation of multiple trains can be completed with low power consumption, and the defect that the extended transport capacity of the trains is limited is overcome.

Description

technical field [0001] The invention relates to the field of passenger trains, in particular to a method and system for automatic articulation of passenger trains based on machine vision. Background technique [0002] In urban traffic, the contradiction between morning and evening peak and flat peak demand for transport capacity is prominent. In order to solve the unbalanced transport capacity, public transport companies can only send additional vehicles and drivers during peak hours, or replace vehicles with large capacity, resulting in a waste of vehicles and personnel. Passenger trains that can be organized freely and independently run independently can be organized and operated during peak hours, and only one driver is needed for the operation of the organized trains. During the off-peak period, decentralized independent operation is carried out, and a driver drives a decentralized independent operation vehicle. [0003] Passenger trains are different from traditional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/73G06T7/136G06T7/80
CPCG06T7/73G06T7/136G06T7/80G06T2207/10016G06T2207/30208G06T2207/30252
Inventor 邹应全管有文黄凯陈希翔
Owner 四川省客车制造有限责任公司