Outdoor wireless communication system based on LoRa ad-hoc network

Abstract

The invention provides an outdoor wireless communication system based on a LoRa ad-hoc network, which is used for solving technical problems of poor mobile network signals in severe environment, short transmission distance and absence of an interactive interface for information sharing of the existing outdoor wireless communication system. The outdoor wireless communication system based on the LoRa ad-hoc network comprises a central processing unit, a positioning module, a Bluetooth module, a peripheral interface, a power supply module, a LoRa communication module and a mobile phone APP terminal; the central processing unit is respectively connected with the positioning module, the Bluetooth module, the peripheral interface, the power supply module and the LoRa communication module; the LoRa communication module constructs a wireless Mesh network with the LoRa communication modules of other systems, and performs reliable data communication through a CSMA / CA protocol and an AODV routing algorithm; and the mobile phone APP terminal and the Bluetooth module perform data exchange through the Bluetooth. The outdoor wireless communication system based on the LoRa ad-hoc network performs communication without the mobile network, has long transmission distance, has the interactive interface for information sharing, and can be applied to the fields, such as the Internet of Vehicles and the Internet of Things.

Description

technical field [0001] The invention belongs to the field of wireless communication, relates to an outdoor wireless communication system, in particular to an outdoor wireless communication system based on a LoRa ad hoc network, which can be widely used in fields such as the Internet of Vehicles and the Internet of Things. Background technique [0002] In fields such as the Internet of Vehicles and the Internet of Things, outdoor activities often occur, and location sharing, information transmission, path tracking, and personnel management during outdoor activities are particularly important. Most of the traditional solutions use shouting, walkie-talkie, etc., but the shouting method is limited by the distance, the long-distance situation cannot be solved, and the physical exertion of people is also relatively large; the walkie-talkie method can only achieve short-distance half-duplex communication, and it cannot be determined. Teammate's location information, walking path an...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects in the above-mentioned prior art, and proposes an outdoor wireless communication system based on LoRa ad hoc network, which is used to solve the poor mobile network signal and short transmission distance in the existing outdoor wireless communication system. Technical issues with interfaces with no information sharing

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