Abstract:

Aiming at the question about billing information reading being out of sync which was caused by the unreliable communication connection between automatic meter reading system and energy remote terminal unit, and the problem on applicability of the products caused by various users’ requirements, an automatic meter reading task scheduling algorithm was developed based on site applicability strategy. Through analyzing users’ requirements, the meter reading strategy man-machine interface was designed to set and submit themselves strategy according to actual ones. A task  cheduling algorithm with priority was developed which can adapt users’ demand. This algorithm could schedule task table with priority to achieve the goal of meter reading which was generated by distinguishing meter reading strategy submitted by users automatically and retrieving calling progress of history information and accepting manual call commands. The engineering application shows that various users’ requirements could be met by this algorithm, integrity and traceability of billing information could be protected by supplementing to call the lost information automatically and manually.

Key words: automatic meter reading system, gate electrical power meter, energy remote terminal unit, site applicability strategy, task scheduling algorithm, period electrical power curve