A reporting method for rs485 ammeter power failure alarm based on timing broadcast strategy

Abstract

A method for reporting power outage alarms of RS485 ammeters based on a timing broadcast strategy, involving a method for reporting power outage alarms; at present, because the RS485 mode is single-duplex, the smart meter cannot actively initiate event reporting, resulting in a large number of power outage events being missed. , late report. The invention includes steps: 1) Timed polling; Type II concentrator regularly broadcasts and sends "power outage status inquiry" message; Type II concentrator performs during the meter reading gap period, and starts to initiate timing when the meter reading ends on the same day or when it exceeds a period of time Rotation training; 2) Bus monitoring; 3) Reporting of single meter power outage events; 4) Reporting of RS485 conflict handling events; The gap period after meter reading is completed and the round-robin feature solves the problem of active reporting of RS485 smart meters, and greatly improves the accuracy and real-time performance of RS485 smart meter power outage events.

Description

technical field [0001] The invention relates to a method for reporting a power failure alarm, in particular to a method for reporting a power failure alarm of an RS485 electric meter based on a timing broadcast strategy. Background technique [0002] With the rapid development of power technology and the acceleration of informatization, the world is deeply promoting the optimization of energy structure and realizing a new round of transformation of energy strategy. Smart grid has become an important trend in the development of international power. The acquisition system has always provided a large amount of business and data support in supporting the operation and management of the distribution network, and plays an important role in the business application of power outage analysis. [0003] So far, State Grid Corporation has optimized the software and hardware architecture of smart meters, standardized the processing and reporting process of power outage events, and realiz...

AI Technical Summary

Problems solved by technology

However, the State Grid currently has a large number of RS485 smart meters with downlink communication methods. For example, the State Grid Zhejiang Company has nearly 26 million RS485 smart meters, of which the number of RS485 smart meters under the Type II concentrator is about 16 million, because the RS485 method is single Due to the duplex mode, smart meters cannot actively initiate event reporting, resulting in a large number of missed and delayed reports of power outage events; the accuracy and real-time performance of RS485 smart meter power outage events need to be improved

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