Heterogeneous network system, control equipment and method for realizing coexistence of various networks

Abstract

The embodiment of the invention provides a heterogeneous network system, control equipment in a meter reading system and a method for realizing coexistence of various networks. The network system comprises a meter reading network, and an electric wire communication PLC (programmable logic controller) network which is coupled with the meter reading network through a high-frequency signal channel, wherein the meter reading network comprises a control module and a controllable on-off high-frequency path module, which are mutually coupled; the controllable on-off high-frequency path module is coupled with the PLC network through the high-frequency signal channel; the controllable on-off high-frequency path module comprises attenuation high-frequency signal equipment and a controllable switch,which are connected in parallel; the control module is used for controlling an access state of the attenuation high-frequency signal equipment by controlling on and off states of the controllable switch; and the attenuation high-frequency signal equipment is used for carrying out attenuation or isolation on high-frequency signals transmitted to the meter reading network from the PLC network through the high-frequency signal channel when accessing into the meter reading network. In the scheme of the embodiment of the invention, the coexistence of the household PLC network and the meter readingnetwork are realized.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a heterogeneous network system, a control device in a meter reading network and a method for realizing the coexistence of multiple networks. Background technique [0002] Automatic Meter Reading (AMR) system is a data acquisition, transmission and processing system based on computer and communication technology, mainly used for automatic reading of utility meters such as electric energy meters, water meters, gas meters, etc. For the automatic reading of electric energy meters, the communication network and technology can choose power distribution optical fiber private network, GPRS, CDMA, 3G / 4G and other wireless public networks, 230MHz load management dedicated wireless private network, medium and low voltage power line communication (Power Line Communication, PLC ) to achieve these four networks, the system structure of the electricity collection system is as follows fi...

AI Technical Summary

Problems solved by technology

[0011] However, in this solution, if there are other PLC systems, they cannot support channel sharing with them, which will cause mutual interference

That is to say, the use of existing standards can only achieve the coexistence of PLC systems that the standard can support, but it cannot be flexibly compatible with the sharing of more types of PLC systems, the application range is limited, and the implementation is complicated.

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