Anti-jamming method of electrical appliance, control system and corresponding electrical appliance

Abstract

The invention is applicable to the field of a controller for a household electric appliance, and provides an anti-jamming method of the electrical appliance, a control system and the corresponding electrical appliance. In the embodiment of the invention, a setting value is written into a memory in case of normal power-on operation; the setting value is removed in case of normal termination of a task program; and the setting value is still stored in the memory in case of abnormal reset so as to smoothly judge whether the controller is reset abnormally; and if yes, the memory is not initializedand can be restored to the state before reset according to operating parameters stored by the memory, thus solving the problem that the controller is out of control in the event that a reset circuit is reset in an abnormal situation, which less causes damage to the whole household electric appliance and more leads to safety accidents.

Description

technical field [0001] The invention belongs to the field of home appliance controllers, and in particular relates to an anti-interference method, a control system and corresponding electrical appliances. Background technique [0002] Typically, reset lines are included in every appliance controller, see figure 1 , 2 , the MCU of the single-chip microcomputer system generally uses two circuit structures for resetting peripheral circuits. Although some will also use the internal reset circuit that comes with the MCU, due to cost constraints, too many protection circuits will not be added. In normal use environments, these two reset circuits can work reliably and normally. The voltage of the reset port and the voltage of the power supply during power-on are shown in image 3 , as long as a low level of several milliseconds is generated on the reset pin of the MCU, the MCU will enter the reset state, and a series of initialization operations will be performed internally, and...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide an anti-interference method for electrical appliances, which aims to solve the problem that when the reset circuit resets under abnormal conditions, the controller will go out of control, which may easily cause damage to the entire household electrical appliance, or cause serious damage. The problem of security incidents

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