Method for preventing data loss in use process of electronic scale

Abstract

The invention provides a method for preventing data loss in the use process of an electronic scale, which comprises the following steps: defining two variables (namely, a variable 1 and a variable 2) in an electronic scale program, wherein the variable 1 is used for marking whether the electronic scale program is executed according to a normal sequence; if so, gradually increasing the variable value according to the sequence; if not, indicating that a program pointer has an offset, resetting a bootstrap program, and re-executing from a start program to prevent the occurrence of unexpected errors; when data is to be written in an EEPROM (Electrically Erasable Programmable Read-Only Memory) in the program, carrying out various judgments in the EEPROM write operation through the variable 2, checking and other modes; if an abnormal write operation is judged, finishing the EEPROM write operation; and if a normal write operation is judged, writing the data in the EEPROM. The method can effectively prevent illegal data overwriting which is caused by the electronic scale in the use process and results in data loss, and improves the reliability of the electronic scale.

Description

【Technical field】 [0001] The invention relates to the technical field of electronic scales, in particular to a method for preventing data loss during use of the electronic scale. 【Background technique】 [0002] During the use of the electronic scale, the setting parameters will be lost. For example, the setting value of a certain parameter is set to 3, and after a few days or months, it is found that the setting value becomes 0. The reason is that the setting value has been modified abnormally. There are two possibilities that may lead to abnormal modification of the set value: 1. When the electronic scale is powered on and off, due to voltage instability, the program pointer of the electronic scale is very likely to run away, resulting in illegal modification of parameters, resulting in data loss of the electronic scale. 2. During the use of the electronic scale, if it is disturbed such as static electricity and electromagnetic radiation, the program pointer will also run ...

AI Technical Summary

Problems solved by technology

There are two possibilities that may lead to abnormal modification of the set value: 1. When the electronic scale is powered on and off, due to voltage instability, the program pointer of the electronic scale is very likely to run away, resulting in illegal modification of parameters, resulting in data loss of the electronic scale

2. During the use of the electronic scale, if it is disturbed such as static electricity and electromagnetic radiation, the program pointer will also run away, resulting in illegal modification of parameters and loss of data on the electronic scale

But this utility model cannot prevent the phenomenon of data loss during the use of electronic scales

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