Triggering system for triggering line-scan digital camera based on external sensor and image detection method

• Main Authors: ZHENG JUNHUI, ZHOU XUEBO, YUAN SHUAIPENG, ZHANG TIANYU, LIU YANG, WANG MINXUE
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2021
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention discloses a triggering system for triggering a line-scan digital camera based on an external sensor and an image detection method, and relates to the technical field of sensor triggering camera synchronization. The triggering system of the linear array cameras comprises four linear array cameras, a differential signal conversion plate and a laser ranging sensor for detecting tooth crests for synchronous triggering. In order to facilitate the operation of a visual algorithm and improve the operation speed and reliability of the algorithm, the image shot by each gear tooth surface needs to be consistent in gear phase. Therefore, an external sensor is needed to detect the tooth crest, and shooting is carried out when the gear detects the tooth crest. Compared with the prior art, the image detection method has the advantages that the method can effectively unify the positions of the gears in the images shot by the gears. Compared with other patent schemes, the scheme provided by the invention has th