Integrated time sequence control system for charge coupled device (CCD) camera

Abstract

The invention relates to an integrated time sequence control system for a charge coupled device (CCD) camera. The system comprises a system control module 1 and a time sequence module 2 connected with the system control module 1, wherein the system control module 1 is used for controlling the scheduling and control of the time sequence control system; and the time sequence module 2 is used for generating a CCD driving signal, a video processing signal, image frame header data and a chip select signal. The invention provides the integrated time sequence control system for the CCD camera, which has a small volume, light weight, low power consumption, high anti-jamming capability, safety and reliability, flexible design and high expansion capability.

Description

technical field [0001] The invention belongs to the field of optical systems and relates to an integrated timing control system for a CCD camera. Background technique [0002] CCD cameras are used more and more widely, so the high reliability, light weight and low power consumption of CCD cameras are particularly important. In a traditional CCD camera, the driving timing of the CCD chip is generated by a separate timing board, and the CAN bus communication of the CCD camera, CCD temperature control, and camera working parameter setting are completed by a separate lower-level computer board. The lower computer board receives the remote control command from the star computer through the CAN bus, and injects the working parameters of the camera into the timing board through the connection on the bottom board of the electric control box. The disadvantages of the traditional CCD camera design concept are: [0003] 1. Adopt two independent timing boards and lower computer boards...

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Problems solved by technology

[0004] 2. The lower computer board injects various working parameters such as the camera’s working mode, exposure time, and Starwork timing code into the timing board through the connection on the bottom board of the electric control box. There are many signal lines between the two module boards and the length is long. It is easy to be disturbed by the outside world, causing the camera to malfunction;

[0005] 3. In the lower computer board module, the CPU needs to perform read and write operations on different peripherals such as the main / backup channel CAN bus controller, A / D converter, D / A converter, and timing board FPGA, and must design corresponding The peripheral address decoding module (mostly composed of logic gate modules) increases the complexity of the module; moreover, if you want to modify the peripheral address, you must redesign the module and make a module board, which is very inflexible

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