Multifunctional remote communication device and smart electric energy meter therewith

Abstract

The invention discloses a multifunctional remote communication device and a smart electric energy meter therewith. The multifunctional remote communication device comprises a housing, an antenna disposed on the housing, a terminal, a battery cover, and an acquisition and communication circuit module disposed in the housing. The terminal comprises two remote communication terminals and one RS485 communication terminal. The multifunctional remote communication device and the smart electric energy meter therewith are mounted in a base meter of a three-phase smart electric energy meter, which canrealize the multi-master communication, the remote meter reading, the status monitoring, and the automatic acquisition of other smart devices, thereby improving the reliability of the remote meter reading system, and has the advantages of stable operation and convenient use.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of automatic meter reading of electric energy meters, and in particular to a multifunctional remote communication device and an intelligent electric energy meter having the same. Background technique [0002] Since 2009, my country has invested a lot of funds, equipment, and manpower to build smart grids, and has achieved remarkable results. The original electronic meters and mechanical meters have been replaced with smart energy meters. The communication has developed to micro-power wireless, narrowband carrier, broadband carrier, etc., realizing automatic meter reading of user electric energy meters, and the acquisition coverage and success rate have reached more than 95%. In addition, through wireless public networks such as GPRS / 3G / 4G, the data of the energy meter is remotely transmitted to the power consumption information collection and management system (hereinafter referred t...

AI Technical Summary

Problems solved by technology

[0007] 1. Compared with technical solution 1, the equipment and maintenance costs are lower, but the remote signal status input supported by the terminal is lacking, and the actual output status of the relay cannot be monitored. For example, the relay is not really opened or closed due to mechanical failure or contact ablation

[0008] 2. For power users of small and medium-sized enterprises, especially medium-sized special transformer users and factory equipment are mostly inductive loads such as motors, reactive power compensation devices must be installed to improve power factor

However, due to the lack of RS485 communication interface, it is impossible to collect the input or removal status of the capacitor of the reactive power compensation device, or other energy meters such as water meters, gas meters and heat meters

[0009] 3. At present, the three-phase (cost control) smart energy meter equipped with a remote wireless communication module mainly completes the energy collection of the base meter itself, and connects to a designated master station system to realize the remote transmission of energy data, but cannot pass through the same The GPRS / 3G / 4G wireless communication module is connected to multiple master stations, that is, it cannot meet the needs of certain industries such as oil fields to upload data to different management units separately

Images