Multichannel wireless optical bus device

Abstract

The invention relates to a multichannel wireless optical bus device which comprises an optical transmitter, an optical receiver, a bus interface and a control circuit, wherein the optical transmitter transits an optical signal according to information to be transmitted, which is required by a wireless optical bus, and the optical signal is diffused by an indoor ceiling and indoor walls; the optical receiver receives the optical signal which is transmitted by the optical transmitter and diffused by the indoor ceiling and the indoor walls, converts the optical signal to an electric current signal so as to reduce the signal distortion in the transmission process, then converts the correctly recovered electric current signal to an optical signal and finally transmits the optical signal to the wireless optical bus; the bus interface is respectively connected with the optical transmitter and the optical receiver; and the control circuit is used for the transmission between the optical transmitter, the optical receiver and the wireless optical bus. The multichannel wireless optical bus device has the advantages of being capable of overcoming the intersymbol interference caused by the mulitpath effect in the diffused optical wireless communication, increasing the bandwidth of the bus and giving full play to the advantages of wide optical carrier bandwidth.

Description

Technical field [0001] The invention involves a bus device, especially a multi -channel wireless light bus device. Background technique [0002] Existing indoor wireless LAN communication technology and protocols, such as Bluetooth technology, home RF HOMERF technology, IEEE802.11 technology, and IRDA standards of infrared digital associations.Due to the use of radio frequency carrier waves or special applications, there are limited bands, poor anti -interference, and poor confidentiality.The wireless optical bus technology combines the advantages of traditional wireless networks and fiber -fiber communication. It has the characteristics of miniaturization, frequency bandwidth, and no need to wiring. It shows incomparable advantages in terms of flexibility, mobility and security.Requirements for self -compilation broadband communication.In the scattered indoor wireless light bus system, due to the transmitting light signal reaches multiple paths to the receiver, the multi -path e...

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly solves the technical problems existing in the prior art that the multi-path effect is formed after the transmitted optical signal arrives at the receiver through multiple paths, inter-symbol interference is generated, the bus bandwidth is limited, and the advantages of the optical bus bandwidth cannot be fully utilized; it provides A multi-channel wireless optical bus device that can overcome the intersymbol interference caused by the multipath effect in the diffuse wireless optical communication, improve the bus bandwidth, and give full play to the advantages of the large bandwidth of the optical carrier

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