Calendar clock exception self-recovery method for watt-hour meter concentrator

Abstract

A method for self-recovery of abnormal calendar clock of electric energy meter concentrator includes the following steps: 1) setting a timer W by concentrator; 2) the concentrator selects one electricenergy meter from the measurement point file and checks the read-back electric energy meter calendar clock format; 3) calculates a temporary valid time currently obtained from that electric energy met; 4) the concentrator generates a timing interrupt every second during this period; 5) repeats steps 2), 3), 4) until three or five temporary valid time are read; 6) sorting the temporary timing values of the three or five tables read out, and selecting one of the times as the final calendar clock recovered by the concentrator according to the principle of taking the median value. The invention adopts the calendar clock mechanism of reading the electric energy meter to recover the clock of the concentrator itself, which can recover in time when the clock is abnormal, does not need to wait forthe master station to issue the correction instruction, and does not increase any cost.

Description

technical field [0001] The invention relates to a recovery method for an abnormal calendar clock of an electric energy meter concentrator. Background technique [0002] In the power consumption information collection system, although the calendar clock of the concentrator is not directly related to electric energy metering, if the calendar clock is abnormal, the timing tasks that depend on the calendar clock may not be executed or may be executed incorrectly. Table task, the system cannot get the data within the specified time; another example is the wrong date, the current data is recorded in another date, resulting in the disorder of the entire recorded data and so on. [0003] Abnormalities in the calendar market are relatively easy to judge, but the current concentrators do not have a good processing mechanism. Except for waiting for the master station system to correct the time, most of them are running with faults. Contents of the invention [0004] In order to solv...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of the abnormal calendar market of the concentrator and ensure the effective operation of the tasks in the concentrator, the present invention proposes a self-recovery method for the abnormal calendar clock of the concentrator