Object surface three-dimensional morphology multi-sensor flexible dynamic vision measurement system and method

Abstract

The invention discloses an object surface three-dimensional morphology multi-sensor flexible dynamic vision measurement system and method. The object surface three-dimensional morphology multi-sensor flexible dynamic vision measurement system comprises a plurality of three-dimensional optical measuring heads and plane targets, a controller, a image acquisition system and a core computer, wherein the three-dimensional optical measuring heads and the plane targets are arranged around an object to be measured; each three-dimensional optical measuring head comprises a grating type binocular vision sensor and a wide field camera; the core computer controls a characteristic point of each plane target to be lighted through the controller, the wide field camera measures the plane targets around the wide field camera, the grating type binocular vision sensor measures a surface three-dimensional morphology of the object to be measured; and with the plane targets in common vision fields of the wide field cameras as mediums, local three-dimensional data obtained through the measurement of the grating type binocular vision sensors are unified to a global coordinate system. According to the invention, the problems of large influence to dynamic measurement precision by a site vibration environment due to rigid connection among the vision sensors in the traditional multi-vision-sensor measurement system.

Description

technical field [0001] The invention relates to a dynamic visual measurement technology for three-dimensional topography of an object surface, in particular to a multi-sensor flexible dynamic visual measurement system and method for a three-dimensional topography of an object surface. Background technique [0002] Large mechanical components (hereinafter referred to as large components) are the key core components of major national equipment, such as various shafts for large ships, various shafts and rotors for large power generation equipment, various rotors and blades for aerospace, etc. At present, the key difficulties restricting the dynamic visual measurement of large-scale components are mainly: the large-scale components are large in size, and there are often complex and harsh on-site working environments such as strong vibration at the measurement site, high-temperature state of mechanical components, and narrow measurement space during processing (hereinafter referre...

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Problems solved by technology

[0010] In view of this, the main purpose of the present invention is to provide a multi-sensor flexible dynamic visual measurement system and method for the three-dimensional shape of the object surface, to solve the rigid connection between the visual sensors in the existing multi-visual sensor measurement system, and the dynamic measurement accuracy is limited. On-site vibration environment has a great impact

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