A method for self-test and self-recovery of concentrator clock loss

Abstract

The invention relates to the technical field of power consumption information collection system, and specifically relates to a concentrator clock loss self-checking and self-recovery method. The method comprises the following steps: judging whether a concentrator clock is normal by checking a clock battery voltage condition after the concentrator is turned on; judging whether the concentrator clock is lost after the concentrator is in normal running; and reversely checking the concentrator time when the concentrator clock is lost. From the above technical scheme, the disadvantage existent in the prior art can be solved, and the long-term and stable running of the concentrator can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of electricity consumption information collection systems, in particular to a method for self-checking and self-recovery of concentrator clock loss. Background technique [0002] In the electricity information collection system, concentrators include concentrator type I and concentrator type II. The difference between them is that type I concentrator reads low-voltage user data through power line carrier or micro-power wireless, and type II concentrator reads data through RS485. Low voltage user data. They are characterized by a large number of low-voltage users collected, ranging from dozens to thousands; the core function is to read the data of low-voltage users and form daily frozen data, and finally send it to the master station of the collection system. The concentrator clock is a core parameter. Once an error occurs, it will affect the reading, storage and uploading of low-voltage user data, resulting...

AI Technical Summary

Problems solved by technology

[0005] 1. The conditions for judging the loss of the clock are not comprehensive, which may cause some loss, but it is still judged to be valid, resulting in continuing to run at the wrong time;

[0006] 2. The accuracy of clock repair is not high, only the most "accurate" value is found from the samples through the algorithm, which has an impact on the concentrator's task startup and event judgment

[0007] In summary, the clock is a core parameter for the concentrator. Due to the battery, there is a risk of clock loss, and the existing self-repair methods are not perfect

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