Ultraviolet communicator
A technology of ultraviolet light and communication machine, applied in the field of communication, can solve the problems of short communication distance, low speed and high bit error rate of information transmission, and achieve the effects of improving speed, enhancing sensitivity and enhancing brightness of light source
Inactive Publication Date: 2015-02-18
广东菲尔普电气股份有限公司
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Problems solved by technology
[0003] The existing line-of-sight working distance of the existing ultraviolet light communicator is generally 3 km to 8 km, the non-line-of-sight working distance is 1 km to 2 km, and the data transmission rate is 4800bit / s, which has the following disadvantages: short communication distance, low speed, Information transmission bit error rate is high
Method used
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Experimental program
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Embodiment Construction
[0008] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described below in conjunction with the embodiments. It should be understood that the embodiments described here are only used to explain the present invention, not to limit the present invention.
[0009] An ultraviolet light communicator, the electronic receiver converts voice or digital data signal into Manchester self-synchronizing pulse data encoding stream. This data pulse triggers the lamp exciter to flash the lamp at an average rate of 20kHz for voice and lower for digital. The ultraviolet light source is a low-pressure mercury gas rare gas discharge lamp, which converts 20% of the electric energy into 253.6mm radiant light. This kind of lamp is a standard lamp in the actual lamp industry, and can be made into different sizes and shapes to meet the requirements of various specifications; reflectors ca...
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Abstract
The invention discloses an ultraviolet communicator. The ultraviolet communicator comprises an ultraviolet transmitter, an electronic receiver, a bandpass optical filter and a light detector. The ultraviolet communicator is characterized in that an ultraviolet light source of the ultraviolet transmitter is a low-pressure mercury gas and rare gas discharge lamp, a matched reflecting mirror is arranged in the lamp, and a lamp tube of the low-pressure mercury gas and rare gas discharge lamp is annular. A reflecting surface is formed at the annular center and is used as the ultraviolet transmitter, and the electronic receiver is an electronic circuit device with a communication system, so that the electronic receiver can convert voice or digital data signals into a Manchester self-synchronizing pulse data encoding stream. The light detector is a sunshade photomultiplier which is shielded by the bandpass optical filter of 250-270nm. The ultraviolet communicator is capable of effectively increasing communication distance and speed and reducing error rate in information transmission.
Description
technical field [0001] The invention relates to an ultraviolet light communication device in the technical field of communication. Background technique [0002] On the informationized battlefield, the right to control information is of decisive significance to the victory or defeat of the war. Currently widely used and researched communication methods such as radio communication, microwave communication, laser communication, wired communication and optical fiber communication still have certain defects or deficiencies in information countermeasures. For example, the confidentiality of radio communication and microwave communication is not high, and electromagnetic waves are easily interfered and monitored by the enemy at a long distance, which is not suitable for occasions that require "radio silence"; laser communication has high requirements for system directionality, and is not suitable for the position needs of both parties in communication The occasions where there are...
Claims
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Inventor 航杭朱长满
Owner 广东菲尔普电气股份有限公司