A clock restoration method based on clock battery undervoltage of intelligent power consumption terminal

Abstract

The invention relates to a clock repairing method based on clock battery undervoltage of an intelligent electric terminal. The method is capable of automatically repairing the intelligent electric terminal clock in the clock battery undervoltage, refreshing the terminal power outage time by using a ferroelectric memory, enabling the clock to be recovered within a range after the terminal is electrified, and enabling the terminal clock to be recovered within a normal range by an external electric meter. The manual intervention is not needed, a lot of manpower and material resource is saved, andthe method is more convenient and practical.

Description

technical field [0001] The invention relates to a clock restoration method based on undervoltage of a clock battery of an intelligent power consumption terminal. Background technique [0002] With the continuous construction of "full coverage, full collection, and full cost control" of the State Grid Corporation of China, some terminals that were put into operation at the earliest began to have some problems, such as the failure of the clock battery. After the terminal is powered off, the clock needs to be kept, so there will be a clock battery on the main board to supply power to the RTC module. However, due to the self-discharge of the battery itself and the pass rate of the battery after batches, a certain proportion of the batteries in the terminals that have been put into operation will be dead. . If the battery is dead, the terminal will lose the clock after the AC power is cut off, causing data storage, task reporting and other important time-related functions of the...

AI Technical Summary

Problems solved by technology

After the terminal is powered off, the clock needs to be kept, so there will be a clock battery on the main board to supply power to the RTC module. However, due to the self-discharge of the battery itself and the pass rate of the battery after batches, a certain proportion of the batteries in the terminals that have been put into operation will be dead.

If the battery is out of power, the terminal will lose the clock after the AC power is cut off, causing data storage, task reporting and other important time-related functions of the acquisition terminal to be out of order after the terminal is powered on again, resulting in the terminal not operating normally

[0003] At present, there are two main methods to solve this problem: one is hardware replacement, on-site replacement of the terminal clock battery. This method requires the technical personnel of the manufacturer to rush to the installation site, and also needs to coordinate with the electricity customer to plan a power outage, open the meter box, and open the metering lead. The site needs to take electricity and use welding tools, etc. The disadvantages are high labor costs, high transportation costs, high labor costs, inconvenient power outages, and inconvenient electricity access.

The other is to artificially discover that the terminal clock battery is invalid, and initiate a terminal time synchronization command on the master station of the acquisition system to correct the time. This method has problems such as untimely discovery, loss of terminal measurement data, and manual intervention.

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