System and method for audio and video on-demand broadcast based on visible light wireless communication
A technology of wireless communication and on-demand system, which is applied in the direction of adapting to optical transmission TV system, image communication, cable transmission, etc., to achieve the effects of human body safety, enhanced experience and saving wireless transmission resources
Active Publication Date: 2015-07-01
SOUTHEAST UNIV
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Purpose of the invention: In order to solve the problem of providing users with wireless real-time audio and video on demand services under the condition of basically not occupying the wireless transmission resources of the cellular mobile communication network, the present invention provides an audio and video on demand system and method based on visible light wireless communication
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] The technical solution of the present invention will be further explained below in conjunction with the accompanying drawings.
[0023] Such as figure 1 As shown, the audio-video on-demand system based on visible light wireless communication includes an access point 1, a mobile terminal 2, an on-demand control module 3 and an audio-video database 4. The access point 1 is composed of an information modulation module 11 and a light-emitting diode LED12. The mobile terminal 2 is composed of an optical receiver 21 , an information recovery module 22 , a central processing unit 23 , a display control panel 24 and a cellular mobile communication network data transmission module 25 .
[0024] The access point 1 is installed at a fixed location that needs to provide services for users. After installation, its location information is set in the on-demand control module 3 in an automatic or manual manner. According to the position information, the on-demand control module 3 send...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a system for audio and video on-demand broadcast based on visible light wireless communication. The system comprises an access point, a mobile terminal, an on-demand broadcast control module and an audio and video database, and the access point comprises an information modulation module and a light emitting diode. The mobile terminal comprises an optical receiver, an information retrieval module, a central processing unit, a display control panel and a cellular mobile communication network data transmission module, and an output end of the information modulation module is connected with the light emitting diode. Received optical signals of the light emitting diode are converted into digital signals by the optical receiver through the information retrieval module, and the information retrieval module transmits the digital signals to the central processing unit. The invention further discloses a method for audio and video on-demand broadcast based on visible light wireless communication. By the system and the method, conventional radio frequency communication is replaced by visible light wireless communication, wireless high-speed multimedia information services are provided for users in hot spots, wireless transmission resources of a cellular mobile communication system are saved, and illuminating and communicating are carried out simultaneously.
Description
technical field [0001] The invention relates to a wireless communication audio and video on-demand system, in particular to an audio and video on-demand system and method based on visible light wireless communication. Background technique [0002] At present, the rapid development of the mobile Internet, based on the mobile multimedia services of various handheld terminals, puts forward higher and higher requirements for the information transmission capability of the cellular mobile communication network. Wireless high-speed multimedia information transmission to users needs to occupy a large amount of wireless transmission resources such as spectrum and power, which will bring a great burden to the cellular mobile communication network in hotspot areas. At present, there is no good solution, which can provide users with wireless high-speed multimedia information services without occupying the wireless transmission resources of the cellular mobile communication network. Co...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/238H04N21/2383H04N21/437H04N21/472H04N7/22
Inventor 张在琛伍德斌余旭涛毕光国尤肖虎
Owner SOUTHEAST UNIV