2results about How to "Reliable detection method" patented technology

The application discloses a fault detection method, device and equipment of a variable pitch system, and a readable storage medium. The variable pitch system can obtain a blade angle and a reference angle when a proximity switch is triggered, compare the blade angle with the reference angle, update forward counting data and / or negative counting data corresponding to the proximity switch according to a comparison result, and determine a fault type of the variable pitch system according to the updated forward counting data and negative counting data. According to the application, the blade angle and the reference angle when the proximity switch is triggered are used for fault detection, compared with fault detection according to a switch signal of the proximity switch, the problem that fault detection is not timely due to signal delay is avoided, and the application only needs to use two counting data to complete fault detection of the variable pitch system, so that the detection method is simple and reliable, and complex model operation is not needed.

The utility model relates to a diameter measuring instrument for wire production. It includes: on -line detection seat, fixed detection wheel, swing arm, movable detection wheel and hall sensor, the first shaft body and second shaft body are horizontally rotated and are equipped on the on -line detection seat, the fixed detection wheel coaxial fixed mounting is in the first shaft body, the middle part fixed mounting of swing arm is in the second shaft body, the third shaft body is horizontally rotated and is equipped on swing arm, the movable detection wheel is coaxial fixed in the third shaft body and is opposite with the fixed detection wheel, the other end of swing arm is provided with lever arm and is prolonged, the end of lever arm is equipped with permanent magnet, the region of on -line detection seat near permanent magnet is installed with hall sensor, still be equipped with the elastic member of driving swing arm to the one side deflection of fixed detection wheel on the on -line detection seat. The utility model can carry out diameter measurement to the wire on the production line in real time, and the detection is more comprehensive and efficient.