Communication signal control method and system based on laser energy supply network

Abstract

The invention provides a communication signal control method and system based on a laser energy supply network, including setting the optical fiber on the side of the substation, the side of the tower, and between the side of the substation and the side of the tower so that the laser energy signal and the information communication signal share Connect the photocell to the supercapacitor and the node sensor in parallel; the information communication signal output by the optical splitter and the divided laser energy signal are transmitted to the wavelength division multiplexer of the sensor node through the optical fiber; the laser energy signal is distinguished by the wavelength division multiplexer The information and communication signals are transmitted to the photocell and the tower-side optical communication module respectively; the sensor node controls the corresponding tower-side optical communication module according to the signal time-sharing strategy to upload the sensing data to the server at the substation side in sequence at predetermined time intervals. Through this application, a sufficiently large time span is set so that the same channel does not interfere with each other, and by staggering the time when each sensor node uploads sensing data, multi-node connections are stably uploaded.

Description

technical field [0001] The invention belongs to the technical field of energy signal co-fiber transmission, and in particular relates to a communication signal control method and system based on a laser energy supply network. Background technique [0002] The information collection and information transmission technology based on electronic technology is the main technical means of the terminal layer of the Internet of Things. The optical fiber communication system has low unit loss, long transmission distance, strong anti-electromagnetic interference ability, simple laying and networking, and safe and reliable communication data. With many advantages, it can largely meet the needs of long-distance communication in complex electromagnetic environments, and is suitable for monitoring applications in various environments. However, due to the limitation of energy supply and other factors, in special environments such as overhead transmission lines and underground pipe corridors...

AI Technical Summary

Problems solved by technology

[0003] At present, for overhead transmission lines, the server host on the substation side is always open, because only one optical fiber is used to complete the downlink transmission of energy light and the uplink transmission of information light at the power optical cable, and because each sensor node on the tower side The time from charging the capacitor to the discharge threshold is not exactly the same, so there is time randomness in uploading sensor data

Therefore, using the same optical fiber on the substation side to complete the data transmission with multiple sensor nodes on the tower side will easily cause the same optical fiber channel to interfere with each other and affect the stability of information performance.

[0004] Therefore, how to solve the problem of using the same optical fiber on the substation side of the existing overhead transmission line to complete data transmission with multiple sensor nodes on the tower side, there is mutual interference of the same optical fiber channel, and the problem of affecting the stability of information performance has not yet been proposed. Effective solution

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