Underwater short-distance high-speed wireless optical information transparent transmission device

A transparent transmission and wireless optical technology, applied in the direction of optical transmission system, etc., can solve the problems of poor confidentiality, high cost and high power consumption of wireless acoustic communication, and achieve the effect of low cost, low cost and low power consumption

Inactive Publication Date: 2014-09-10
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] The problem to be solved by the present invention is to overcome the high cost, the risk of entanglement, breakage and docking, and the limitation of control when the above-mentioned existing cable communication means is used for underwater mobile communication when applied in lakes, rivers and ocean environments Sex, as well as the pro

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  • Underwater short-distance high-speed wireless optical information transparent transmission device
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  • Underwater short-distance high-speed wireless optical information transparent transmission device

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Example Embodiment

[0026] The device of the present invention takes an underwater short-distance high-speed wireless optical information transparent transmission device in a certain situation as an embodiment. In the sealed cylinder with the light window (diameter about 60mm), 4×4 blue and green LED cross-mixed arrays are used as the light source inside, and the internal modulation adopts analog modulation to directly change the current size to control the light intensity, and the divergence angle of the transmitting end is greater than ±15° , The metal-encapsulated photodiode is used as a detector, and the receiving field of view is greater than ±10°, achieving a transmission distance of 5 meters for Class I water quality, 1 meter transmission distance for Class III water quality, and a transmission rate of 1Mbps to transmit data, voice and video multimedia information.

[0027] The present invention will be further described below with reference to the embodiments and accompanying drawings, but...

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Abstract

An underwater short-distance high-speed wireless optical information transparent transmission device comprises a transmitting module and a receiving module, wherein the transmitting module sequentially comprises an LED modulation drive circuit, a blue-green mixed LED array, a transmitting light path, a beam expanding mirror and a homogenizing piece in the direction of an electrical signal to be transmitted, and the receiving module sequentially comprises a large-view-field receiving light path, a light filter, a Fresnel lens, a photoelectric detector and a photoelectric detection conditioning circuit. The underwater short-distance high-speed information transparent transmission problem can be solved, the lake, river and ocean environment application requirements are met, and the underwater short-distance high-speed wireless optical information transparent transmission device is especially suitable for connection of multiple sensors at deep position under the ocean, underwater data collection, ROV data interaction and continuous communication occasions for water surface platforms and underwater devices and has important significance in the ocean application field.

Description

technical field [0001] The invention relates to underwater wireless optical information, in particular to an underwater short-distance high-speed wireless optical information transmission device. Background technique [0002] Lakes, rivers and oceans account for nearly 70% of the earth's surface area. With the deepening of human development and utilization of underwater resources, especially marine resources, more and more underwater detection equipment, monitoring platforms and sensors have been put into use. It has become a difficult problem to realize the effective transmission of data. At present, the commonly used methods include wired transmission and wireless transmission. For wired transmission, the transmission information rate is stable and reliable, but communication cables need to be carried, and there are risks of entanglement, breakage and docking. The cost is high, and it also brings maneuverability and mobility. For wireless communication, due to the skin ef...

Claims

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Application Information

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IPC IPC(8): H04B10/80
Inventor 周田华朱小磊陈卫标
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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