Fault detection device of absolute value encoder and fault detection distinguishing method thereof

Abstract

The invention discloses a fault detection device of an absolute value encoder and a fault detection distinguishing method thereof. The fault detection device is characterized by comprising a detectioncontrol module, a display circuit module, a key circuit module and a buzzer circuit module. The display circuit module forms a visual interface for displaying current encoder rotation position information and fault detection device working state information; the key circuit module forms a control signal input loop; the buzzer circuit module forms a sound prompt loop for indicating that the detection result is normal or has a fault; the detection control module is composed of a microcomputer chip, and is provided with an encoding knob position signal input end, a contact point contact state signal input end, a key control signal input end, an information display signal output end, an alarm signal output end, an information processing unit and a storage unit, wherein the information processing unit judges whether the absolute value encoder is in a normal or fault state or not according to input signals. The device has the characteristics of simple structure, convenient detection, high efficiency, high accuracy and the like.

Description

technical field [0001] The invention discloses a fault detection device of an absolute value encoder and a fault detection and discrimination method thereof. It is suitable for detecting whether the structure of the encoder body is faulty, whether the welding of the encoder port is short-circuited or open-circuited. Its fault detection and discrimination function can be used in the automatic detection program mode of the production of the menu selection type small household appliance controller. The utility model belongs to the technical field of household appliances. Background technique [0002] Absolute encoders, also known as absolute encoders or absolute encoders, are characterized by the uniqueness of the output signal at each position point, making it anti-interference and memory-saving after power-off. It is suitable for home appliances such as washing machines and microwave ovens for temperature adjustment and function switching. [0003] In the process of using ...

AI Technical Summary

Problems solved by technology

[0005] One of the purposes of the present invention is to provide a fault detection device for absolute encoders in order to solve the problems of low efficiency, easy human misjudgment and low accuracy in manual detection and identification of absolute encoder faults in the prior art

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