a camera array

Abstract

The invention discloses a camera array including a total control module and a plurality of camera modules arranged in a square array. Each camera module includes a sub-control module, 9 paths of selective switches, a parallel-to-serial circuit, an electronic-to-optical convertor, an optical-fiber interface and 9 basic modules arranged into a 3*3 square array. Each basic module includes a camera and four illuminating lamps. In each basic module, the four illuminating lamps are arrayed into a 2*2square and a lens of the camera is arranged in the center of the square. In each camera module, the cameras are connected with the 9 paths of switches; output ends of the 9 paths of selective switches are connected to an input end of the electronic-to-optical converter through the parallel-to-serial circuit; the electronic-to-optical convertor is connected with a processing device through the optical-fiber interface; and the sub-control module is connected with the 9 paths of switches and the cameras. The total control module is connected with the sub-control modules. The cameras shoot sequentially and transmit images to the processing device through optical fibers. The camera array is applicable to the field of high-precision vision detection of circuit boards and the like.

Description

technical field [0001] The invention relates to the field of photography and imaging, in particular to a low-cost camera solution applied to the fields of automatic detection of large-format circuit boards, films, printed and dyed products, and the like. Background technique [0002] With the increasing maturity of machine vision algorithm software and the drop of computer hardware prices, its application in industrial inspection applications is becoming more and more popular. The use of machine vision technology to detect product appearance quality in various applications is a major application, including automatic detection of circuit boards in the electronic field and other fields, such as X-ray films in the medical field, printed products in the printing and dyeing field, etc. [0003] Take the circuit board as an example. The circuit board is the core of electronic products. The technological level of circuits and electronic components is getting higher and higher. The ...

AI Technical Summary

Problems solved by technology

[0007] The present invention mainly solves the problems existing in the prior art that it is difficult to quickly detect a large-area circuit board and the price of an X-Y mobile platform is high, and provides a camera array with a large shooting area, no focusing problem, good stability, low cost, and high speed

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