A method for data integration and acquisition in the online movement of train wheels

Abstract

The invention discloses a data integration acquisition method in the on-line movement of a train wheel, which comprises the following steps: the dimension linear array direction is z-direction; an included angle exists between an optical path and the center of a y-coordinate detection area; the left and right sides synchronously measure the z-coordinate and y-coordinate of a shaft center; the z-distance of the shaft center from an orbital surface and the y-distance and partial tread curves deviating from the orbital surface centerline of the respective orbital surface are measured; A linear array of position x is parallel to that rail surface and is arrange at the center of the detection area, and the position of the wheelset at each instant aft the wheelset enters the detection area is measured; The angle between the z-direction of the deformed linear array and the symmetrical center line of the size linear array is included. The y-direction and z-direction deformations of the orbit surface and the partial tread surface are measured precisely. The acceleration sensor is installed on the inner side of the rail of the centerline of the detection area, and the acceleration range is measured by fastening the rail. Integrated synchronous detection, wheelset bearing early fault detection higher speed of the subway outbound and can maximize the acquisition of real-time data effect; Integrated and optimized design of on-line detection tasks to enhance technical indicators and user experience value-added space; Equipment simple, efficient and accurate, reliable.

Description

technical field [0001] The invention relates to the technical field of on-line safety detection of train wheelset running, in particular to a method for data integration and acquisition during online movement of train wheels. Background technique [0002] Rail trains are one of the most important means of transportation today and play an irreplaceable role in the development of the national economy. The safe operation of rail trains is not only related to the development of the national economy, but also to the safety of people's lives and property. Therefore, the safe operation of rail trains has always been an important research topic in the field of transportation. [0003] With the rapid development of China's urban rail transit, in order to ensure the safe operation of trains, three kinds of online detection (hereinafter referred to as "3T") user requirements have been produced: 1. Train vehicle wheel set size detection (TWDS). The "Truck Wheelset Size Dynamic Detectio...

AI Technical Summary

Problems solved by technology

[0004] At present, there are problems in the use of 3T subsystems: 1. The independent subsystem makes data acquisition asynchronous, resulting in low data fusion; 2. The measurement error transfer function is greatly affected by train movement and environment; 3. TWDS is separated from TPDS and TADS systems, resulting in wheel-rail Obstacles in motion cycle analysis; 4. Laser, stress gauge and acoustic sensing technologies lead to heavy calibration and maintenance workload; 5. The data platform is independent and cannot be shared

Images