Wireless communication method of Internet of Things

Abstract

The invention provides an Internet of Things wireless communication method. The method is applied to a wireless sensing system. The wireless sensing system comprises a LoRa measurement device, a network convergence controller, a LoRaWAN gateway, a LoRaWAN network server and a LoRaWAN sensing application server which are connected in sequence. The downlink of the network convergence controller communicates with the LoRa measuring device by using a LoRa private protocol, and the uplink of the network convergence controller communicates with the LoRaWAN gateway by using a LoRaWAN protocol. The network convergence controller is arranged between the LoRa measurement equipment and the LoRaWAN gateway, so that remote real-time data sensing and control can be realized, the functions of relay forwarding sensing, sensing control, automatic path optimization and the like are supported, the communication range of the LoRa wireless Internet of Things equipment is effectively expanded, and the problems of high power consumption of measurement equipment, insufficient integration degree of the wireless internet of things and high deployment cost are solved.

Description

technical field [0001] The present application relates to the technical field of data perception, and in particular, relates to a wireless communication method for the Internet of Things. Background technique [0002] LoRa is a physical layer modulation technology that can be used in different protocols, such as LoRaWAN protocol, LoRa private protocol, etc. With different usage agreements, the final product and business form will also be different. Among them, the LoRaWAN protocol is a low-power wide-area network protocol promoted by the LoRa Alliance. At the same time, the LoRa Alliance standardizes LoRaWAN to ensure that LoRa networks in different countries can interoperate. Today, the LoRaWAN standard has established a complete ecological chain of "LoRa chip-module-sensor-gateway-network service-application service". [0003] Since the LoRaWAN protocol is a global standard, it cannot achieve good results in some subdivided fields, such as water, gas, heat meters and oth...

AI Technical Summary

Problems solved by technology

The classA mode in the LoRaWAN protocol can meet the power consumption requirements very well, but it cannot realize functions such as real-time perception and real-time valve control; although the classB mode in the LoRaWAN protocol can meet certain real-time performance, the receiving gap time of the classB mode is generally Dozens of seconds, cannot well meet the actual needs. At the same time, in the classB mode, the child nodes need to receive synchronous beacon frames regularly, which puts forward more requirements on the power consumption of the child nodes. At present, there are few support classB in the market. mode of measurement equipment; the classC mode in the LoRaWAN protocol supports long-term receiving status, and this mode basically cannot meet the needs of battery-powered measurement equipment nodes

[0004] At the same time, in the standard LoRaWAN protocol, relays are not supported, and water, gas, and heat meters are generally installed in harsh environments. For a small number of measurement equipment that cannot be covered by signals, it can only be solved by adding a LoRaWAN gateway. A LoRaWAN The price of the gateway is tens of thousands of yuan, which adds a lot of cost to the network deployment, and is not particularly suitable for low-power IoT device networking application scenarios

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