Height detection device and method based on binocular 3D parallax

Abstract

The invention discloses a height detection device based on binocular 3D parallax. The height detection device comprises two groups of camera components, a linear moving mechanism, a control module andan image analyzing module, wherein the camera components are arranged symmetrically at a certain angle; each camera component comprises a light source group, a lens group, a camera connector and a camera body which are connected in sequence; the light source groups are arranged on the front parts of the lens groups; the center lines of the lens groups are aligned with a shot object; the camera connectors are wedge-shaped blocks; the lens groups are connected with the camera bodies through the camera connectors to construct an imaging light path channel; and the linear moving mechanism is usedfor driving the camera components to move. On the basis of the principle of binocular parallax, two images of the shot object shot by the two camera components are analyzed and calculated to obtain the three-dimensional geometrical information of the object, so that high measuring accuracy is achieved, and true position detection can be implemented. The wedge-shaped connectors are provided, so that the lens is matched with the device body according to the Scheimpflug principle to obtain a full and clear image, and the measurement accuracy is improved further.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a height detection device and detection method based on binocular 3D parallax. Background technique [0002] Connectors are an indispensable part of electronic equipment in various industries such as consumer electronics, automotive electronics, mobile phones, and network communications. Especially high-end precision connectors are becoming more and more miniaturized, and the requirements for product quality are also getting higher and higher. Equipment accuracy requirements are also increasing. The quality of the connector needle point directly affects the quality of the product, and the height of the connector needle point is an important indicator. At present, the traditional methods of connector tip height measurement mainly include height transfer method and laser measurement method. The height transfer method requires direct contact with the product and has an impact on ...

AI Technical Summary

Problems solved by technology

This technical solution is simple in structure and easy to implement, but many reflecting mirrors are placed in the body, resulting in a huge body, fragile mirror body, and easy to be contaminated with dust on the mirror surface. It is difficult to clean, and the position of the mirror body directly affects the effect of the photo taken. , thereby affecting the test results, resulting in poor reproducibility of test results; at the same time, its detection area is also limited

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