Automatic detection device of electric telecontrol channel

Abstract

The invention discloses an automatic detection device of an electric telecontrol channel. The automatic detection device of the electric telecontrol channel comprises a channel input-output control module, a DSP digital processing module and a PC or a laptop. The channel input-output control module is formed by modifying an existing relay control panel, the control port and the data port of the channel input-output control module are in output connection with the serial port of the PC or the laptop and the DSP digital processing module respectively, the network interface of the PC or the laptop is connected with a remote maintenance terminal through a network, and the keyboard, the mouse and the VGA port of the PC or the laptop are connected with a KVM pipe collecting system. The wave form, the curve, the data, and the source code of the channel can be displayed through the PC or the laptop, comprehensive detection can be carried out on the telecontrol channel, the quality of the telecontrol channel can be conveniently observed, analyzed and judged, and the quality of the telecontrol channel can be used as the base for the safety evaluation and the risk evaluation of the telecontrol channel. The automatic detection device of the electric telecontrol channel enables the structure to be simplified, and is less in needed hardware, small in occupied space, easy and convenient to operate and control, strong in practicality and convenient to widely popularize and apply.

Description

technical field [0001] The invention belongs to the technical field of signal or data detection, specifically relates to telecontrol, communication and automation, and is mainly used for the detection, debugging and verification of electric telecontrol channels. Background technique [0002] The power telecontrol channel is a dedicated line for power grid data transmission, and it is the main channel for power grid dispatching automation information sources. An automated system has dozens or hundreds of channels. It is difficult to use traditional detection techniques and methods to automatically, quickly and accurately detect all channels at one time. Traditional detection techniques and methods mainly include hardware detection and software detection. Hardware detection is mainly to detect the physical characteristics of the channel, such as level, frequency, frequency deviation, etc. One of the hardware detection methods is to directly use instruments to perform manual d...

AI Technical Summary

Problems solved by technology

Hardware detection is mainly to detect the physical characteristics of the channel, such as level, frequency, frequency deviation, etc. One of the hardware detection methods is to directly use instruments to perform manual detection, and its disadvantages are time-consuming, laborious, inefficient, and impossible. Automation; the second method of hardware detection is to use channel cabinets for detection, which can improve the degree of automation and efficiency, but still requires manual cooperation, which can only be considered semi-automatic. The disadvantages are large volume, large investment, inconvenient installation, and complex structure. inconvenient maintenance

Software detection method, that is, using special software or master station sacda software detection, which detects channel transmission characteristics, such as protocols, protocols, bit error rates, etc., the degree of automation and efficiency can also be greatly improved, but it still requires people to operate, and also It can only be regarded as semi-automatic, and its disadvantage is that it cannot detect and display the physical characteristics and waveform data of the channel

[0003] Existing detection technologies and methods are either too simple, outdated and inefficient, or the data display cannot truly and intuitively reflect the physical and transmission characteristics of the channel, hardware detection and software detection are not well combined, and cannot be thoroughly Solve the problems of channel visualization, automation and network detection, and cannot meet the requirements of telecontrol or communication majors for channel detection, analysis, judgment and debugging

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