System for data acquisition and signal treatment of testing flat wheel

Abstract

The invention provides a flat wheel detection data acquisition and signal processing system, which consists of seven parts, namely a power module, an AD sampling input front end conditioning module, an AD sampling conversion module, a data program memory module, an interruption management module, a high speed communication module and a reset module. The invention applies a high speed floating point DSP chip, a high speed low consumption double 12-bit parallel A / D converter, a dual-ported RAM chip and a complicated programmable logic device to the flat wheel detection data acquisition and signal processing system, develops a data acquisition and processing system taking the high speed floating point DSP as a core processor, and improves the speed, accuracy and stability of flat wheel detection data acquisition and processing (in addition, the system control, communication and monitoring is handled by ARM-VxWORK, and communication takes a form of network card.), thereby improving the performance index of the whole flat wheel detection system.

Description

(1) Technical field [0001] The invention relates to a flat wheel detection data collection and signal processing technology used in railway systems. (2) Background technology [0002] The flat wheel detection data acquisition and signal processing system is an important part of the flat wheel detection system of the railway system, and plays an important role in the stability, efficiency, intelligence and accuracy of the flat wheel detection equipment. Its main functions are mainly reflected in the following aspects: (1) Collect the analog electrical signal output by the front end of the flat wheel detection system, and provide a reliable and effective source of accurate digital data for the detection algorithm of the flat wheel detection system. (2) Provide an efficient and stable hardware carrier for the operation of vehicle counting, axle counting, and detection algorithms. (3) Complete the real-time communication and data transmission with the detection control system i...

AI Technical Summary

Problems solved by technology

With the continuous improvement of railway transportation speed, the amount of front-end data has also increased significantly, and higher requirements have been placed on the data acquisition system. The low-precision, low-speed and low-speed communication methods of single-chip microcomputers and low-speed DSPs have been unable to meet the new requirements of the railway system. Require

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