Power communication remote motion signal monitoring and self-operation system

Abstract

The present invention discloses an electric communication remote signals monitoring and auto-switching-on system composed of a central control module, a carrier wave detecting module, an electric power modulation and demodulation module, a public telephone network modulation and demodulation module, a remote renewing module and a relay module. Wherein, proximal end input can be connected to the electric power modulation and demodulation module and the remote end output through the relay module; the electric power modulation and demodulation module and the remote end input can be connected to the proximal end output through a relay module; the carrier wave detecting module is connected between the remote end input and the central control module; the electric power modulation and demodulation module, the public telephone network modulation and demodulation module and the remote renewing module are connected with the central control module in a two-way connection mode; the control signaloutput end of the central control module is connected to the control input end of the relay module. Thus, the system in the present invention has the advantages of: an electric communication remote signal monitoring and auto-switching-on function, the high reliability and safety, strong real time and remote renewing performance.

Description

technical field [0001] The invention relates to a power communication system, in particular to a power communication telecontrol signal monitoring and automatic switching system. technical background [0002] With the establishment of the new electric power system and the gradual implementation of "grid grid bidding", the power sector needs to conduct power transactions and power dispatch between regional power grids according to market rules, which puts forward more stringent requirements on the power supply quality, reliability and security of power grids. high demands. As an important means to ensure the safe, high-quality, economical operation of the power grid and to improve the level of dispatching operation management, the power dispatching automation system has increasingly shown its importance. Only by ensuring the stable and reliable operation of the dispatch automation system can it play an important role in the economic dispatch and safe operation of the power g...

AI Technical Summary

Problems solved by technology

[0004] The main problems existing in the existing power communication private network are: (1) The network structure of the communication network is relatively weak: at present, the backbone network of power communication is generally optical fiber communication or digital microwave communication, and some areas still have no conditions to build an optical fiber self-healing ring network. Part of the link network is often affected by various external factors, so that the business carried by it cannot operate normally; in this case, once the telecontrol signal fails, it cannot be found immediately and the faulty line business can be shared through detour lines; (2), Insufficient trunk line transmission capacity: In electric power private network communications, except for the optical fiber circuits that have been built and put into operation in recent years, the old trunk circuit capacity is generally only 34Mb / S, and a few are 140Mb / S and 155Mb / S, which restricts the development of new broadband services. Pioneering; (3) The communication system is backward, and the main line circuit is seriously overdue: in some areas, the main line microwave circuit is still based on the PDH transmission system, many of which have been in operation for more than 10 years and urgently need to be updated

These instruments can only monitor the telecontrol signal alone, or can only perform self-injection alone, but at the same time, the related research on the monitoring of the telecontrol signal and the auto-injection system has not been in-depth

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