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Circuit testing system and method

A technology for circuit testing and driving circuits, which is applied in the field of testing and can solve the problems of aperture driving circuit testing and failure to obtain test results, etc.

Inactive Publication Date: 2012-07-04
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the above-mentioned test method does not conduct a comprehensive test of the aperture drive circuit, therefore, it is impossible to obtain accurate test results

Method used

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  • Circuit testing system and method
  • Circuit testing system and method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0020] Such as figure 1 Shown is a functional block diagram of a preferred embodiment of the circuit testing system of the present invention. The circuit testing system 2 is applied to the camera 1 for testing the aperture drive circuit in the camera 1 to determine whether the aperture drive circuit is operating normally, for example, whether the aperture of the camera 1 can be controlled Thereby adjusting the brightness value of the captured image.

[0021] The camera device 1 may be a digital camera, an Internet Protocol Camera or the like. The camera 1 includes a processor 10 and a storage device 12 . The processor 10 is used to execute various software installed in the camera 1 , for example, the circuit test system 2 , operating system and other application software.

[0022] The storage device 12 is used to store various types of data, for example, captured images, setup data using the circuit testing system 2 , data obtained from testing, and the like. The storage d...

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Abstract

The invention relates to a circuit testing system which is used for testing an aperture driving circuit in a camera device. The system comprises a setting module, a reading module, a control module and a judging module, wherein the setting module is used for dividing brightness intervals and designating the testing sequence of the brightness intervals; the reading module is used for reading the current brightness value of a taken image; the control module is used for controlling the aperture driving circuit to drive an aperture of the camera device to expand or contract correspondingly when the current brightness value does not stay in the first brightness interval arranged according to the testing sequence, so that the current brightness value of the taken image is sequentially changed into the brightness values within the brightness intervals arranged according to the testing sequence; and the judging module is used for judging that the aperture driving circuit operates properly when the sequentially changed brightness values stay in the corresponding brightness intervals and the changed brightness values are maintained for residence time. The invention also provides a circuit testing method. With the circuit testing system and method, the operation of the aperture driving circuit can be tested.

Description

technical field [0001] The invention relates to a testing technology, in particular to a testing system and method for an aperture driving circuit of an imaging device. Background technique [0002] The aperture in the camera device (for example, digital camera, network camera) is used to control the exposure of the captured image. The opening angle of the aperture determines the exposure, and the expansion and contraction of the aperture are controlled by the aperture drive circuit. Usually, the performance test method of the aperture driving circuit is to fully open the aperture to read the brightness value of the currently captured image, and judge whether the brightness value is within a normal range. [0003] However, the above-mentioned test method does not conduct a comprehensive test of the aperture driving circuit, therefore, it is impossible to obtain accurate test results. Contents of the invention [0004] In view of the above, it is necessary to provide a ci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B7/085G03B9/02H04N5/232
CPCH04N17/002G03B43/00G03B9/07
Inventor 马瑞平彭爽
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD