Cabin network system based on light-emitting diode (LED) visible light
A network system and visible light technology, applied in the field of engine room network system, can solve the problems that radio frequency technology cannot be used, and achieve the effect of low cost, simple design and strong practicability
Inactive Publication Date: 2012-08-01
郭丰亮
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Problems solved by technology
[0004] Now there are many kinds of wireless communication technologies, such as Bluetooth, Wi-Fi, WiMax and LTE, etc., but most of these wireless communication technologies are limited by the shortcomings of transmission power, electromagnetic interference, etc., such as hospitals and airplanes, which are related to life. , radio frequency technology cannot be used
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[0012] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0013] see figure 1 , the embodiment of the present invention includes: an information transmitting terminal, a central controller, an LED lamp and a terminal receiving device. The information transmitting terminal is mainly installed in the driver's cab to input, process and modulate satellite signals, and the modulated signal is transmitted by means of the LED lamp. It is emitted in the form of light waves; the terminal receiving device is the passenger's mobile phone or laptop computer, which is used to receive the optical signal emitted by the LED lamp, and then perform photoelectric conversion, signal amplification processing, demodulation an...
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The invention discloses a cabin network system based on light-emitting diode (LED) visible light, which comprises an information transmitting end, a central controller, an LED lamp and a terminal receiving device. The information transmitting end is mainly used for inputting, processing and modulating satellite signals and transmitting modulated signals out in light wave mode by means of the LED lamp; and the terminal receiving device is a cell phone or a laptop of a traveler and used for receiving optical signals transmitted by the LED lamp so as to conduct photovoltaic conversion, signal amplifying processing and demodulating to recover original transmitting signals, and wireless communication of the terminal receiving device is achieved. By means of the method, the cabin network system can be applied to a cabin system, the LED lamp is used as a network access point for receiving and transmitting information, the cell phone or the laptop in a cabin can access to internet, is not subject to limit of problems of transmitting power, electromagnetic interference and the like.
Description
technical field [0001] The invention relates to the field of a visible light communication system using visible light, in particular to a cabin network system based on LED visible light. Background technique [0002] Since the LED was discovered, it has been paid attention to by people. Although at the beginning, it could only be used for ordinary indicator lighting due to its low light efficiency, but with the continuous improvement and optimization of LED performance, its application range is also constantly increasing. Increase; Compared with traditional lighting technology, LED lighting is energy-saving, reliable, and has a long service life. As the next generation of mainstream lighting technology, it is being vigorously promoted. [0003] At present, LEDs can be used not only for indicator lighting, but also for display screens, lighting, and some special applications, and their high response sensitivity and good modulation characteristics allow them to realize wireles...
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IPC IPC(8): H04B10/10H05B37/02H04B10/116
Inventor 郭丰亮
Owner 郭丰亮