A method and system for testing the daily timing error of an electricity consumption information collection terminal

Abstract

The invention discloses an electricity consumption information collection terminal daily timing error testing method and an electricity consumption information collection terminal daily timing error testing system. The electricity consumption information collection terminal daily timing error testing method comprises that a testing master station transmits heartbeat frames to a terminal and records the master station transmitting times; the testing master station receives the confirmation frames transmitted by the terminal, and records the master station receiving times at the terminal receiving times and the terminal transmitting times, a new round of heartbeat frames are immediately transmitted, and a new round of the master station transmitting times are simultaneously recorded; when the number of the heartbeat frames transmitted by the testing master station exceeds a preset transmitting value, the starting time error between the terminal and the testing master station is calculated; the current time of the testing master station is recorded as the master station starting time, and the terminal continuously runs for N h; the testing master station repeatedly transmits heartbeatframes to the terminal, and when the number of the heartbeat frames transmitted by the testing master station exceeds the preset transmitting value again, the ending time error between the terminal and the testing master station is calculated, and the current time of the master station is recorded as the master station ending time; and according to the content, the electricity consumption information collection terminal daily timing error is calculated.

Description

technical field [0001] The present invention relates to the field of electric power metering, and more specifically, relates to a method and system for testing the daily timekeeping error of a power consumption information collection terminal. Background technique [0002] With the increasing diversification of people's demand for electricity, the requirements for accurate measurement of electricity are becoming more and more prominent, that is, the error requirements for electricity information collection terminals are becoming more and more stringent; at present, electricity information collection terminals are mainly divided into centralized copy terminals For the terminal test of the daily timing error, it mainly uses a precise time base source to test, that is, to use the precise time base source to monitor the number of pulses sent by the second pulse terminal of the terminal, and then compare it with the precise time base source to test the date. Timing error, this te...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of difficult operation, poor accuracy and low efficiency in measuring the daily time error of some types of terminals in the background technology, the present invention provides a test method and system for the daily time error of the electricity information collection terminal. The method and system A scheme is proposed to realize the calculation of daily timekeeping error by using soft calculation, using the master station clock as the precise clock, and using the heartbeat frame information maintained by the master station and the terminal communication link to calculate the accurate clock of the terminal to calculate the daily timekeeping error; avoiding problems such as destroying the terminal sample due to opening the terminal shell and being difficult to find the second pulse pin, improving test efficiency and reducing test cost; the test method for the daily timing error of the terminal for collecting power consumption information includes:

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