Intelligent electromechanical equipment data interaction method and system based on LoRa communication

Abstract

The invention discloses an intelligent electromechanical equipment data interaction method and system based on LoRa communication. The system comprises a LoRa terminal, a LoRa gateway and a cloud service platform; according to the method, a private protocol for communication between a LoRa gateway and a LoRa terminal is self-defined; the method comprises the steps that a LoRa terminal is connectedwith a LoRa gateway; and the LoRa terminal executes a corresponding operation according to a command issued by the LoRa gateway; the LoRa gateway receives and processes the data uploaded by the LoRaterminal; a novel rate self-adaptive algorithm is designed on the basis of a private protocol of LoRa communication; the characteristics of multiple spreading factors and multiple data rates of the LoRa communication technology are fully utilized, to automatically allocate different spreading factors to the LoRa terminals in different distance ranges of the LoRa gateway to ensure network connectivity, the quality of wireless receiving signals of the LoRa terminals and the condition of a transmission channel are analyzed, and the data transmission rate of the LoRa terminals is adaptively adjusted. The probability of LoRa wireless channel collision is reduced, and the throughput and real-time performance of data uploading are improved.

Description

technical field [0001] The invention relates to the technical fields of electrical engineering and communication, in particular to a method and system for data interaction of intelligent electromechanical equipment based on LoRa communication. Background technique [0002] With the development of modern industrial technology and the improvement of equipment manufacturing level, the number of electromechanical equipment on expressways has been increasing. The deployment of electromechanical equipment is of great significance to ensure the normal operation of the expressway and the safety of the road, and its failure will not only cause huge economic losses, but also bring bad social impact. At present, part of the mechanical and electrical equipment of the expressway has been connected to the toll collection, monitoring and communication networks through wired optical cables, but there are still some equipment that do not have the conditions for networking. If you need to mo...

AI Technical Summary

Problems solved by technology

If you need to monitor this part of the electromechanical equipment that is not connected to the Internet, you must develop a data interaction system that collects equipment status features at the front end of the equipment and sends them back to the monitoring data center. LoRa is an extension-based LPWAN (Low power wide area network) communication technology. The ultra-long-distance wireless transmission standard of frequency technology provides users with a simple system that can achieve long-distance, long battery life, low cost, and large capacity, but the throughput and real-time performance of data uploading are relatively low

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