Method and system for establishing indoor laser radio local network based on ether net |
Title： |
| Method and system for establishing indoor laser radio local network based on ether net |
|
Application Number： |
01144582 |
Application Date： |
2001/12/21 |
Announcement Date： |
2002/06/05 |
Pub. Date： |
|
Publication Number： |
1352495 |
Announcement Number： |
1173494 |
Grant Date： |
2004-10-27 |
Granted Pub. Date： |
2004-10-27 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H04B 10/04, H04B 10/06, H04B 10/10 |
Applicant(s)： |
Qinghua Univ. |
Inventor(s)： |
Gong Mali, Yang Xiun, Zhang Kai |
Key Words： |
establish, indoor, laser radio local network, ether net |
Abstract： |
A method to build a local area network of laser wireless indoors based on Ethernet belongs to the technique area of wireless light LAN. The characteristics of the system are as follows. Laser wireless transceiver via RJ45 interfact port to connect to Ethernet card replaces conventional twisted-pair and coaxial line. Through diffuse reflection system composed of ceiling and walls, the method of light wireless communication is adopted in the invention. The invented laser as light source points to moveable receiver so as to realize multi-path propagation of optical signal. The ivnention puts forward a laser wireless transceiver that does not need to set up another direct propagation path so as to save the cost to be on line. Aslo, it provides the merits of good robustness and removability, since movement and shelter from people or other object does not affect the transmission of signal. |
Claim： |
|
Priority： |
|
PCT： |
|
LegalStatus： |
|
Relevancy information
