Transmission device, transmission system and transmission method for indoor multisensor data based on optical communication

Abstract

The embodiment of the invention discloses a transmission device, a transmission system and a transmission method for indoor multisensor data based on optical communication. The transmission device comprises an optical transmission module and an optical receiving module, wherein the optical transmitting module comprises a light emitting diode; the optical receiving module comprises a light sensor;the transmission device further comprises a processor, a memory, an internal control register and an external interface; the processor is electrically connected with the memory, the internal control register, the external interface, the optical transmission module and the optical receiving module; the external interface is used for connecting a plurality of corresponding sensors. According to theembodiment of the invention, optical communication is adopted to replace radio frequency communication and a serial port protocol is compatible with an optical communication protocol by protocol conversion; the transmission device is used as a node of a sensing network, so that interface compatibility of the sensing network node, node layout simplicity, communication reliability of the sensing network and the safety of a sensing network layout environment are improved, and electromagnetic pollution of sensing network layout is reduced.

Description

technical field [0001] The invention relates to the field of wireless sensor networks, in particular to an indoor multi-sensor data transmission device, system and method based on optical communication. Background technique [0002] Wireless sensor network is a self-organizing, multi-hop wireless distributed network composed of a large number of small size, low cost, wireless communication, sensing, and data processing sensor nodes through wireless communication technology. Sensor nodes are the basic units of the network. The stable operation of nodes is the basic guarantee for the reliable operation of the entire network. Wireless sensor network mainly has the characteristics of large number of sensor nodes, dynamic topology, multi-hop routing, self-organizing network, and data-centricity. At present, the mainstream wireless sensor network technologies include ZigBee, WiFi and Bluetooth. [0003] ZigBee protocol formulates network layer, application layer and security lay...

AI Technical Summary

Problems solved by technology

[0008] In view of the current research on communication technology in wireless sensor networks, there are still some deficiencies in the following points: , low communication rate; , There is electromagnetic pollution; , Communication distance is limited; , Spectrum resource shortage, etc.

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