Building communication system and building communication ad hoc network method based on lora-mesh

Abstract

The invention belongs to the technical field of Internet of Things communication, and specifically relates to a LoRa-Mesh-based building communication system and a building communication ad hoc network method. The sensors in the system are used to send data collected from third-party equipment in the building to nodes; the nodes It is used to transmit data to the gateway; the gateway is set at a certain position according to the height of the building, and is used to transmit the data to the cloud; the cloud is centrally deployed on the public cloud, and is used to distribute the data to the corresponding third party outside the building according to the characteristics of the data message. Three-party application server; nodes and gateways are continuously powered by power supply, the communication protocol of nodes and gateways is LoRa, the routing protocol is RPL, and the Mesh network is automatically formed between different nodes and between nodes and gateways through the RPL protocol. The invention enables the protocol of the sensor to be changed from LoRa to Bluetooth, and the cost of the Bluetooth sensor is lower and the service life is longer; the RPL protocol is adopted, so that the gateways can communicate with each other, automatically form a network, and reduce construction and maintenance costs.

Description

technical field [0001] The invention belongs to the technical field of Internet of Things communication, and in particular relates to a LoRa-Mesh-based building communication system and a building communication self-organizing network method. Background technique [0002] The Internet of Things technology is another epoch-making technological breakthrough after the Internet technology. The development of the Internet and cloud computing technology has fully realized the connection between people, and software and services have greatly changed our lives. With the rise of the Internet of Things and edge computing, the link between things will be realized in the future, and sensing and services will penetrate into every corner of our lives. With the development of smart radio and television, local radio and television networks have begun to build and explore the Internet of Things and explore new business models. Especially in the application of narrowband Internet of Things,...

AI Technical Summary

Problems solved by technology

In practical applications, due to the complex structure of some buildings, the traditional LoRa networking method uses a star topology, which has many shortcomings, such as being unable to provide a truly universal connection for the entire building, especially in special areas such as basements, due to the duty cycle Limitations and poor link quality, often resulting in data loss and difficulty using the network

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