A light spot capture system and method based on cmos image sensor
An image sensor and light spot technology, which is applied in the field of light spot capture systems based on CMOS image sensors, can solve the problems of low efficiency and low precision of light spot capture systems, and achieve the effects of reducing cost and power consumption, improving transmission rate and increasing reliability.
Active Publication Date: 2020-06-19
NO 719 RES INST CHINA SHIPBUILDING IND
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[0005] Embodiments of the present invention provide a spot capture system and method based on a CMOS image sensor to solve the problem of low efficiency and accuracy of the spot capture system due to the non-uniformity of the CMOS image sensor
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[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0026] figure 1 It is a schematic structural diagram of a spot capture system based on a CMOS image sensor according to an embodiment of the present invention, as figure 1 As shown, a spot capture system based on a CMOS image sensor includes an optical unit 101, a CMOS image sensor 102, a correction unit 103, a control unit 104 and an execution u...
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Embodiments of the present invention provide a spot capture system and method based on a CMOS image sensor, wherein the system includes an optical unit, a CMOS image sensor, a correction unit, a control unit, and an execution unit; wherein the optical unit is used to receive laser signals; the CMOS image sensor It is used to sense the laser signal and output the gray value analog signal; the correction unit is used to correct the gray value analog signal and output the gray value correction signal; the control unit is used to obtain the spot position error according to the gray value correction signal, and according to the spot position The error generates a control signal; the execution unit is used to adjust the receiving angle of the optical unit according to the control signal. The system and method provided by the embodiments of the present invention not only reduce the cost and power consumption, improve the transmission rate, and increase the reliability of the CMOS image sensor, but also improve the efficiency and accuracy of light spot capture by correcting the output of the CMOS sensor.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of wireless laser communication, and in particular to a system and method for capturing light spots based on a CMOS image sensor. Background technique [0002] In the process of wireless laser communication, to ensure the stable communication of the laser communication system, the most critical step is to establish a laser communication link. The establishment process of the laser communication link is completed by the ATP (Acquisition, Tacking, Pointing) system. [0003] In the ATP system, the spot capture system is a very important part in the establishment of the laser communication link. The performance of the spot capture system is largely related to the photodetector it chooses. With the rapid development of semiconductor technology level and production technology, the problems of CMOS image sensor in terms of resolution, sensitivity, image quality, noise, etc. Power drive and ...
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IPC IPC(8): H04B10/11H04B10/60H04N5/374
CPCH04B10/11H04B10/60H04N25/76
Inventor 方明杰罗南杭熊卿王强万华庆吴培
Owner NO 719 RES INST CHINA SHIPBUILDING IND