A method for generating an external synchronization signal for camera exposure control and real-time error compensation

Abstract

The invention provides a method for generating an external synchronization signal for camera exposure control real-time error compensation, which is composed of related hardware and software, including a general GPS receiving device, a signal receiving and sorting module, a main control communication module, an external synchronization frequency generation and adjustment module, and an external synchronization The time interval adjustment and generation module, the external synchronization signal generation module, the external synchronization signal camera logic matching module, and the external synchronization signal camera level matching module. The GPS receiving device receives the satellite signal and outputs the time B code in real time, and the signal receiving and sorting module sorts the time B code into a level signal that the programmable logic device can receive in real time, and the programmable logic device generates the external synchronization of the target camera through a series of processing modules signal, and then the external synchronous signal camera level matching module organizes the external synchronous signal into a level signal matched by the camera to control the camera; the operation of each module in the programmable logic device is the core control algorithm of the present invention.

Description

technical field [0001] The invention belongs to the technical field of imaging control. It specifically relates to a method for generating an external synchronous signal for camera exposure control and real-time error compensation. Background technique [0002] With the advancement of technology, information technology and computer technology have been developed rapidly, and special instruments equipped with cameras have also been greatly developed. Accuracy requirements for external synchronization. Traditionally, some special instruments equipped with cameras originally did not require the external synchronization control of the camera at all, allowing the camera to work in internal synchronization mode, or simply generating external synchronization signals to make the camera work in external synchronization mode with general precision. The precision of the conventional external synchronous mode mainly depends on the crystal oscillator precision guarantee of the system. ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in order to overcome the shortcomings of the traditional camera control external synchronization frequency cycle interval error is relatively large, and will change with the environment changes, in the case of insufficient space for airborne equipment and low power consumption, provide A method for generating precise external synchronization for camera exposure control, capable of effectively generating and controlling external synchronization of cameras at low cost and low power consumption, thereby improving image quality

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