Dual mode heterogeneous communication system based on low voltage power line and micropower wireless

Abstract

The invention relates to a dual mode heterogeneous communication system based on a low voltage power line and micropower wireless. The system comprises a master station, a concentrator, a collector, a smart electric meter and the like, wherein the master station is connected with the concentrator through a public communication network; the concentrator is connected with a district assessment main electric meter, a plurality of triphase smart electric meters, a single phase smart electric meter and the collector; the collector is provided with a plurality of RS 485 smart electric meters; the concentrator, the collector, the single phase smart electric meter and the triphase smart electric meters are connected through a wireless communication network or a carrier communication network, so that a dual mode concentrator route module and a dual mode electric meter module or a collector module are in cooperative work, a dual channel communication network with complete coverage in a district is established, and a whole network dual channel multitask dual mode communication is realized. In the dual mode heterogeneous communication system provided by the invention, weaknesses of various communication modes are complemented mutually, the problem of communication failure caused by line signal degradation or a far distance is solved, and the communication success rate and the communication efficiency are greatly improved.

Description

technical field [0001] The invention relates to a dual-mode heterogeneous communication system based on low-voltage power lines and micro-power wireless, belonging to the technical field of communication. Background technique [0002] The traditional centralized copying system adopts power line carrier communication, which has the advantage of not needing to lay new lines, and uses the existing power line as the medium for signal transmission, but the system channel is easily affected by on-site servo motors, high-power motors, inverter air conditioners and other equipment, and the power line signal The transmission presents high clipping and high distortion. The micro-power wireless centralized reading system gradually developed in recent years uses the space electromagnetic field to transmit electromagnetic wave signals without considering the line conditions. However, the signal attenuation is very large in high-rise buildings, shielded places and environments with electr...

AI Technical Summary

Problems solved by technology

As the information transmission medium between the collection terminal and the meter, when the carrier channel has interference signal distortion or communication fails, the routing control strategy will automatically try micro-power wireless communication, and the two communication methods will automatically switch, learn from each other, and automatically select a high-quality channel to transmit data. Complete the interaction between the collection terminal and the meter efficiently and with high quality, and solve the networking and transmission bottleneck problems of the three-layer collection structure

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