Signal relay communication method of on-line monitoring device for electric transmission line poles and towers

Abstract

The invention discloses a signal relay communication method of an on-line monitoring device for electric transmission line poles or towers. The method comprises the following steps: 1, continuously installing communication devices one by one on each electric transmission line pole or tower, and constituting a communication chain; 2, numbering the communication devices as described in step 1 in a circulating code mode, wherein each circulating code is a four-digit binary code which is gradually accumulated from 0000 and 0001 to 1111, then after 1111 plus 1 is conducted, overflow is conducted, the code is renumbered as 0000, and the communication process is conducted in the code accumulation direction; 3, adopting a point-to-point communication mode in the communication process, and dividing the communication devices as described in step 2 into a master control unit and controlled units, wherein the master control unit controls the communication progress, the controlled units conduct feedback on communication signals given out by the master control unit, after the communication process is ended, the master control unit shifts the control right to one of the controlled units, and the corresponding controlled unit becomes a new master control unit and then conducts communication with the next controlled unit. The signal relay communication method has the advantages of being convenient to control and low in development difficulty.

Description

technical field [0001] The invention relates to a signal relay communication method for an on-line monitoring device of a transmission line pole and tower, and belongs to the technical field of electric power communication. Background technique [0002] The transmission line is the main artery of the power system, and its operating environment is complex and changeable. In order to monitor the operation status of the transmission line and facilitate the staff to troubleshoot the line, a large number of on-line monitoring devices are currently installed on the line towers. Since most of the transmission line towers are located in remote areas, the data transmission of the online monitoring device is very important. At present, there are mainly three methods: power carrier communication, wireless module communication and GSM communication network. [0003] Power carrier communication refers to the technology of high-speed transmission of analog or digital signals by means of ...

AI Technical Summary

Problems solved by technology

The application of this technology is very mature, and the encoding and decoding process is relatively simple, but its limitation is that it will generate communication costs and the transmission effect will be affected by the communication base station, so it is not suitable for large-scale use

Especially in remote mountainous areas where transmission lines are erected, the application effect is not good, and the maintenance cost is high

[0005] Wireless module communication is also a commonly used method at present, such as 433MHz communication module, ZigBee communication module, etc. These modules communicate through a fixed protocol without additional costs, but due to the limitation of the effective transmission distance of the wireless communication module, the communication module covers Small range, not great for long-distance communication

[0006] To sum up, among the existing communication methods, the GSM communication network has the widest coverage, but the maintenance cost is high, and large-area installation is unrealistic; the power carrier communication is too limited, and there are few applications at present; the wireless module is economical and practical, but the coverage is narrow

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