Device and method for visible light communication
A visible light and communication technology, applied in the field of communication, can solve the problems of no ultra-high-speed visible light communication technology and related terminal products, and achieve the effect of improving anti-interference and reliability
Inactive Publication Date: 2014-11-19
FUJIAN STAR NET EVIDEO INFORMATION SYST CO LTD
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Problems solved by technology
However, the field of visible light communication at home and abroad is still in the research and trial production stage, and there is no ultra-high-speed visible light communication technology and related terminal products.
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[0046] Please refer to figure 1 The schematic block diagram of the equipment device module shown in the present invention is a device for visible light communication, including two devices for sending and receiving:
[0047] The sending device specifically includes the following modules:
[0048] Data segmentation module: segment the binary data in sequence with N bits as the basic unit, and obtain basic data blocks by segmentation, where N is an integer greater than 1;
[0049] Data unit-color block conversion module: divide the RGB color space into 2 N Each color area has a unique display color, as long as the colors of each color area can be clearly distinguished, the basic unit N bits can represent 2 N states, and the RGB color space is divided into 2 N There is a one-to-one correspondence between each color area, and the conversion between data and color is realized through this correspondence.
[0050] Color matrix combination module: Combine the color values of th...
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The invention provides a method for visible light communication. The method comprises two processes of sending and receiving. The sending process specifically comprises the steps that data are sectioned into basic data blocks, basic units are coded according to color space, the specific data blocks are represented by specific colors, and the color blocks are combined into a two-dimensional color matrix to be displayed on a display screen at the sending end. The receiving process specifically comprises the steps that a camera at the receiving end is used for collecting image information, and the two-dimensional color matrix is restored into data output. The method has the advantages that original hardware on a hand-held device can be repeatedly used, and a convenient and reliable small-data-size communication means is provided on the basis that the device cost is not added. The transmission time is saved, and the anti-interference and reliability of data transmission are improved.
Description
technical field [0001] The present invention relates to a communication technology, in particular to a device and method for visible light communication. Background technique [0002] At present, the communication method on handheld devices is mainly through WIFI, Bluetooth, etc. for data transmission. When transferring data volume 1 to 1, a process of establishing a connection and matching confirmation is required before data connection can be performed. For a small amount of transmission In some cases, the process of establishing a connection far exceeds the time of data transmission, which is inconvenient. [0003] The visible light communication system uses visible light for communication and data transmission, achieving a data transmission rate of up to 1Gbps. Including the development of visible light communication protocol stack and the development of visible light communication codec chip. Using a dedicated computer and mobile information terminal capable of sendin...
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IPC IPC(8): G06F3/06
Inventor 吴振文陈风
Owner FUJIAN STAR NET EVIDEO INFORMATION SYST CO LTD