Abstract
The faucet's quality inspection is an integral component of the faucet production process. Sensitivity is an essential parameter to be considered in the detection process. In the traditional sensitivity measurement method, the angle of the rotating handle is reflected by the angle of the motor rotation. However, the motor's axis and the faucet's axis are not the same, so the angle measured by the motor is not the angle of the handle. There is a large error through the mechanical transmission structure to drive the handle movement, no matter the adopted transmission method. This article proposes a faucet rotation angle detection system that uses machine vision to measure the faucet handle's rotation angle. Experiments show that the system's measurement error is less than ±0.5° and meets the system's error requirements for the rotation angle of the faucet handle when the camera's installation height is within a specific range.
Highlights
In the processing and production of the faucet [1], the quality detection of the faucet is a very complicated process which occupies a significant position
IMAGE PROCESSING The steps to determine the rotation angle of the faucet handle are: (1) The first step is to detect the center of the faucet handle tail's rotation trajectory
Compared with the traditional method of using a motor to measure the rotation angle of the faucet handle, the measurement method proposed in this paper has the following advantages: (1) First, within a certain camera installation height range, the measurement system and detection algorithm meet the accuracy requirements of the measurement system
Summary
In the processing and production of the faucet [1], the quality detection of the faucet is a very complicated process which occupies a significant position. The fourth step is to recognize the center of the circle circumscribed at the tail of the handle by the Hough transform detection circle algorithm after the preprocessing and moving target detection of each faucet handle's collected images. On account of the fact that the rotation angles of the top of the handle and the tail of the handle are the same, the tail of the handle which can be collected a complete image is selected for system design and analysis When the opening of the faucet handle is maximum, as shown in Fig. 5, the relationship between H and is:
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