Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

indoor high-speed visible light communication system based on OFDM

A visible light communication, high-speed technology, used in short-range systems, distribution line transmission systems, free space transmission, etc.

Inactive Publication Date: 2019-05-14
TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an OFDM-based indoor high-speed visible light communication system. This communication module has strong anti-interference ability, simple connection mode and strong stability, and effectively solves the problem of LED lights and Ethernet in LED visible light communication applications. internet connection problem

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • indoor high-speed visible light communication system based on OFDM
  • indoor high-speed visible light communication system based on OFDM
  • indoor high-speed visible light communication system based on OFDM

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The invention will be further described below in conjunction with the accompanying drawings and examples.

[0018] Such as figure 1 As shown, an indoor high-speed visible light communication system based on OFDM, including a communication module body (1), is also characterized in that the main control module (2) transformer circuit (3) on the communication module body (1), and the transformer The network interface circuit (4) connected to the circuit (3), the power input interface (5) and the 220V power line interface (6) connected to the network interface circuit (4), wherein the transformer circuit (3) includes a power circuit (7), A sending circuit (8), a receiving circuit (9), a power line coupling circuit (10) and a zero-crossing detection circuit (11).

[0019] The power supply circuit (7), transmission circuit (8), reception circuit (9), power line coupling circuit (10) and zero-crossing detection circuit (11) are integrated on the mutual inductance circuit (3)...

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

No PUM Login to View More

Abstract

The invention discloses an indoor high-speed visible light communication system based on OFDM. The power line carrier communication module belongs to an intelligent communication product, solves the problem of interconnection of an LED lamp and the Ethernet in LED visible light communication application through an embedded technology, a sensor technology, a wireless communication technology and acorresponding hardware structure, omits a network line to directly use a power line for communication, and belongs to the field of intelligent communication. The power line carrier communication module based on the OFDM technology comprises a power line carrier communication module and a power line carrier communication module, The communication module comprises a communication module body (1), The communication module is characterized by further comprising a main control module (2) and a mutual inductor circuit (3) which are arranged on the communication module body (1), wherein the network interface circuit (4) is connected with the mutual inductor circuit (3), the power input interface (5) and the 220V power line interface (6) are connected with the network interface circuit (4), and the mutual inductor circuit (3) comprises a power circuit (7), a transmitting circuit (8), a receiving circuit (9), a power line coupling circuit (10) and a zero-crossing detection circuit (11). The power line carrier communication module based on the OFDM technology is simple in structural design, convenient to use and high in transmission efficiency.

Description

technical field [0001] An OFDM-based indoor high-speed visible light communication system relates to the field of power communication, especially the field of LED optical communication. Background technique [0002] In the 1920s, power line communication began to attract people's attention. Since power line communication uses ubiquitous power cables as the transmission medium, power line communication has outstanding advantages such as low investment, high return, and simple network construction and maintenance. Therefore, it has developed rapidly. Traditional power line communication can only transmit information through high-voltage transmission lines, and its application range is quite narrow. With the continuous development and maturity of power line communication technology, power line communication can now be used in different transmission line networks such as high, medium and low voltage, and is widely used. applied in different fields. Low-voltage power carrier 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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116H04B3/56
Inventor 崔世钢何林吴兴利张永立李亨
Owner TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com