Square wave generation and multi-path output device, system and method

Abstract

The invention provides a square wave generation and multipath output device, a system and a method. The device comprises a power supply, a photoelectric encoder, a distribution signal board, an analogsignal board, a photoelectric module, and a signal change-over switch. The analog signal board and the photoelectric encoder are connected with the distribution signal board through the signal change-over switch, and the photoelectric module is connected with the distribution signal board; the device is connected with an external device through an optical fiber to avoid signal interference; the transmission distance of the same signal can be increased through optical fiber networking and port expansion of each device, the stability is good, and no interference exists; signal switching switch,the analog signal board outputs an analog square wave signal during parking, and the photoelectric encoder outputs an actual square wave signal during vehicle driving, thereby achieving the generation and multipath output of square wave signals in various states of a detection vehicle, improving the work efficiency of railway infrastructure detection, and providing a guarantee for the railway operation safety detection.

Description

technical field [0001] The invention relates to the technical field of railway operation safety, in particular to a square wave generation and multiple output device, system and method. Background technique [0002] With the rapid development of high-speed railways and the continuous improvement of operating speed, operational safety has become an eternal theme of high-speed railways. In order to ensure the operation safety of high-speed railways, the railway system operates high-speed inspection trains to strengthen the daily inspection of railway infrastructure, find out diseases, and guide railway maintenance and repair, so as to ensure smooth, safe and effective operation of railways. Comprehensive multi-professional detection requires multi-professional synchronous data collection and pulse synchronization. [0003] The existing detection scheme for railway infrastructure is to directly connect the trigger signal in series with multiple detection systems or devices. D...

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Problems solved by technology

[0004] Aiming at the technical problems in the above-mentioned prior art that the signal is easily interfered when detecting the railway infrastructure, the transmission distance of the same signal is limited, and the system cannot obtain the signal when parking, which brings difficulties to the system debugging and simulation calibration, the present invention provides a This kind of square wave generation and multi-channel output device uses the analog signal board to simulate the digital signal output by the photoelectric encoder, so that the system can be debugged and simulated normally in the parking state; the photoelectric module is connected to the external device by using an optical fiber to avoid Signal interference increases the transmission distance of the same signal

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