Portable train vibration tester

Abstract

The invention discloses a portable train vibration tester. The portable train vibration tester is used for measuring the vibration of a train body and under-train key equipment of the train, calculating the stability and comfort level indexes on line, displaying, storing, and wirelessly transmitting the data. The portable train vibration tester is composed of a field programmable gate array (FPGA), an acceleration module, a frequency module, a global positioning system (GPS) module, a display module, a keyboard module, a clock module, a random-access memory (RAM) module, a data storage module, a wireless network module, a program storage module, and the like. By structuring an independent floating point calculating unit (FPU) in the FPGA, the instantaneity of calculating the stability and comfort level indexes is guaranteed. As the calculating and controlling center of the tester, the FPGA can confirm the vibration degree, the position and speed of the train when the vibration happens at the present time by synchronizing the acceleration module, the GPS module, the frequency module and the clock module; by using the display module, the data storing module and the wireless network module, the tested data and the calculated result can be displayed, stored and wirelessly transmitted in real time.

Description

technical field [0001] The invention relates to the field of train electrical detection, in particular to a portable train vibration tester. Background technique [0002] Railway is the main artery of transportation and plays a very important role in the development of national economy. The development of high-speed railway is a technological revolution in the railway passenger transportation industry, representing the development direction of railway passenger transportation. Since 1997, six large-scale speed increases have been carried out, especially the sixth large-scale speed increase on April 18, 2008. my country's high-speed trains were officially put into operation, which effectively alleviated the contradiction between railway transportation volume and transportation capacity, and received Very significant social and economic benefits. With the increase of train running speed, the running quality of train vehicles has gradually become the focus of attention. The m...

AI Technical Summary

Problems solved by technology

Using this method, no matter whether it is in the form of online or offline, it is inseparable from the use of a personal computer for the final digital calculation. This situation can no longer meet the requirements of modern high-speed railways for convenient detection, miniaturization and intelligent detection equipment.

At the same time, due to the close relationship between the comfort and stability indicators of the train and the running speed of the train, the traditional calculation method does not combine the instantaneous running speed of the train with the calculated comfort and stability indicators, which has certain limitations.

Images