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Time domain synchronization method of camera

A time-domain synchronization, camera technology, applied in color TV parts, TV system parts, TV and other directions, can solve the problems affecting the accuracy and accuracy of images in astrophotography, and differences in the time of image acquisition, etc. To achieve the effect of ensuring accuracy and ensuring synchronization

Active Publication Date: 2020-05-01
LIGHT SPEED VISION BEIJING
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AI Technical Summary

Problems solved by technology

As a result, even if multiple groups of cameras start shooting synchronously, there are differences in the time of camera exposure and acquisition of images, which affects the accuracy and precision of image acquisition in astrophotography

Method used

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  • Time domain synchronization method of camera

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings, wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower", "bottom" and "top" used in the following description refer to the Directions, the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

[0033] A time-domain synchronization method for cameras, such as figure 1 shown, including the following steps:

[0034] Step 1: Test the delay time of camera 1 from startup to exposure.

[0035] Step 1-1: Install a test light 2 for illuminating the image sensor 4 of the camera 1, and cut off the image sensor 4 of the camera 1 from receiving external light of the camera 1.

[0036] Step 1-2: Control the image sensor 4 in the camera 1 to work in a continuous cycle, and the image sensor 4 outp...

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Abstract

A time domain synchronization method for a camera relates to the camera field, and comprises the following steps: testing the delay time of a camera from starting to exposure; and when the sum of thecurrent time and the delay time is equal to preset time, starting the camera. When the sum of the current time and the delay time is equal to the preset time, the camera is started, so that the exposure starting time of the camera is equal to the preset time, the interference of the delay time on the accurate exposure time of the camera is eliminated, and the phenomenon that the astronomical photography precision is influenced due to the difference between the internal processing time of the camera is avoided.

Description

technical field [0001] The invention relates to the field of cameras, in particular to a time-domain synchronization method for cameras. Background technique [0002] The cesium atomic clock uses the electromagnetic wave radiated when the electrons inside the cesium atom jump between two energy levels as a standard to control and calibrate the electronic oscillator, and then control the movement of the clock. The stability of this kind of clock is very high. At present, the best cesium atomic clock has a difference of 1 second after 20 million years. Now in the world, the transition frequency of cesium atomic clock is widely used as the standard of time frequency. The GPS satellite system eventually uses cesium atomic clocks. The existing GPS module can also output a time signal in addition to the function of satellite positioning. The time signal includes a PPS signal based on the transition frequency of the cesium atomic clock and a calibration time based on the output o...

Claims

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Application Information

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IPC IPC(8): H04N5/232H04N17/00
CPCH04N17/002H04N23/66
Inventor 邱虹云
Owner LIGHT SPEED VISION BEIJING
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