Underwater visible light communication receiving and detecting method, device and system
A technology of visible light communication and detection method, which is applied in the field of devices and systems, and underwater visible light communication receiving and detecting methods, and can solve the problems of single receiving and detecting methods, limiting the reliability of underwater visible light communication, etc.
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Embodiment 1
[0051] The first embodiment of the present application discloses a method for receiving and detecting underwater visible light communication. The underwater visible light communication receiving and detecting method is suitable for a visible light receiving and detecting device provided with a photomultiplier tube. The Photomultiplier Tube (PMT, The Photomultiplier Tube) is a photodetector that converts weak light signals into electrical signals and still has a small current output in a completely dark environment. Such as figure 1 As shown, the underwater visible light communication reception detection method mainly includes:
[0052] S101, detecting the current underwater environment;
[0053] In S101, a detection device that can detect water depth and / or underwater light is used to detect the underwater environment where the visible light receiving and detecting device is currently located, such as how deep the water is, or how strong the current underwater ambient light is. W...
Embodiment 2
[0060] Based on the underwater visible light communication reception detection method disclosed in the first embodiment of the present application, if it is detected that it is in a deep sea or underwater dark environment, the current output by the photomultiplier tube is obtained, and the current is converted into an equivalent In the process of outputting the second visible light signal corresponding to the luminous flux in S103, there are two different situations, one is that a weak light signal can be detected, and the other is that no light signal can be detected at all.
[0061] Among the technical solutions disclosed in the embodiments of this application, preferably, such as figure 2 Shown:
[0062] S201: If it is detected that it is in a deep sea or underwater dark environment, use the photomultiplier tube to detect a light signal, if it detects a light signal, photomultiply the light signal and output an amplified current;
[0063] In S201, the photomultiplier tube such as...
Embodiment 3
[0076] Based on the methods for receiving and detecting underwater visible light communication disclosed in the first and second embodiments of this application, the embodiment of this application also correspondingly discloses an underwater visible light communication receiving and detecting device, and including the underwater visible light communication receiving and detecting device Underwater visible light communication system; the specific structure is as follows.
[0077] Such as Figure 5 As shown, this is a schematic structural diagram of an underwater visible light communication receiving and detecting device 100 disclosed in the third embodiment of the application, which mainly includes an environment detector 101, a light intensity detector 102, and a light signal detector 103.
[0078] Among them, the environment detector 101 is used to detect the current underwater environment. If it is detected that it is currently in shallow water or a bright underwater environment, ...
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