Detection method and detection device of a detection device

Abstract

The embodiment of the present application discloses a detection method and a detection device for a detection device. The detection device has a measurement direction, a device reference frame determined according to the measurement direction, and a reference direction corresponding to the measurement direction. The detection device includes a detection module, and the object to be measured is on the If the first feature point and the second feature point are included, when the detection module and the first feature point have a first relative position, the first feature point can be first detected by the detection device, and then the detection module and the second feature point can be detected. When the point has the second relative position, the second detection device is used to perform the second detection on the second feature point, so that the waiting point between the reference direction and the measurement direction can be obtained according to the detection result and the inherent positional relationship between the first feature point and the second feature point. The included angle is measured to improve the detection accuracy of the detection equipment, and the method of determining the included angle to be measured in this method only requires two feature points with known distances along the reference direction, and the operation is simple.

Description

technical field [0001] The present application relates to the field of detection, and in particular, to a detection method and a detection device of a detection device. Background technique [0002] At present, detection equipment can be used to detect the feature points on the object to be measured, and the characteristics of the object can be obtained. For example, the detection equipment can be used to detect the object to be measured, so as to obtain the distance between the detection equipment and the feature points on the object to be measured, and then Determine the morphology of the object to be tested according to the detection results. Specifically, the detection device can emit detection light to the object to be tested. After the detection light is reflected by the surface of the object to be tested, the reflected light is received by the detection device. According to the characteristics of the detection light and the reflected light, the relationship between th...

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Problems solved by technology

[0004] However, there may be fixed errors in the fixing process of the detection equipment. When the detection characteristics and the analysis process of the detection results remain unchanged, the obtained position information is no longer along the reference direction, but along a certain distance from the reference direction. The direction of the angle, which can be used as the actual measurement direction, the angle between the actual measurement direction and the reference direction, is related to the error in the fixing process of the detection equipment

For example, when the reference direction is the vertical direction, the height measuring device can be fixed vertically downward, so that the detected distance between the height measuring device and the feature point is along the vertical direction, which can be used as the height between the height measuring device and the feature point difference, so that it is used to determine the height of the feature point, and when the height measuring device is not fixed vertically downward, but has a certain angle with the vertical direction, the distance between the height measuring device and the feature point is no longer along the vertical direction, It is along the actual measurement direction, so it cannot be used as the height difference between the height measuring equipment and the feature point

[0005] Therefore, when there is a fixed error in the detection equipment, the position information obtained based on the analysis of the detection results also has errors, resulting in low detection accuracy of the detection equipment.

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