Smart meter serial port dl/t645 communication protocol online fast detector

Abstract

The invention discloses an intelligent ammeter serial port DL / T645 communication protocol online fast detector which belongs to the field of communication and control of intelligent ammeters and particularly relates to an intelligent ammeter serial port DL / T645 communication protocol online fast detector, which can improve work efficiency of field debugging personnel. The detector includes a transformer, an ISL3152 chip, a 485 interface, an MCU and an indicating lamp. Key points of the structure of the detector are that an input port of the transformer is connected with the commercial power; an output port of the transformer is connected with an input port of a rectifier bridge; an output port of the rectifier bridge is connected with an input port of a three-terminal voltage regulator block; an output port of the three-terminal voltage regulator block is connected with a power input port of the ISL3152 chip and a power input port of the MCU; and a 485 transmission port of the ISL3152 chip is connected with a 485 transmission port of the MCU.

Description

technical field [0001] The invention belongs to the field of intelligent electric energy meter communication and control, and in particular relates to an online rapid detector of the serial port DL / T645 communication protocol of the intelligent electric energy meter. Background technique [0002] In recent years, the automatic meter reading of smart meters in the collection of electricity consumption information of power customers has been widely used. The State Grid Corporation of China has invited bids for about 300 million smart meters, of which 150 million smart meters are RS485 smart meters. The RS485 smart meter is mainly used in the automatic collection of the assessment table (general meter) in the station area (using RS485 as the communication method), and the automatic collection of some user electric meters (using RS485 as the communication method). When the smart meter cannot communicate effectively through RS485, it is necessary to use technical means to determi...

AI Technical Summary

Problems solved by technology

This mode is suitable for professional commissioning personnel with a high technical foundation, not for on-site operation and maintenance commissioning personnel of power companies

At the same time, the equipment required for this detection mode is large in size, large in number, and has many interfaces, which is inconvenient to carry and intuitively judge the fault problem.

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