RS485-based Modbus protocol packaging method

Abstract

The invention provides a Modbus protocol packing method based on RS485, and belongs to the technical field of Internet of Things. The method comprises the steps that a cloud platform obtains a data demand and point location information of registers, obtains a cluster to which each register belongs according to the point location information, and issues the data demand and the point location information of all clusters to a gateway; and the gateway generates at least one setting data packet based on the data demand, the preset maximum length of the data packet and the maximum interval number of the registers after obtaining the groups to which all the registers in each cluster belong according to the point location information, and issues all the setting data packets to the sensor. According to the invention, the gateway obtains the corresponding response data packets from the sensor with the minimum set data packet quantity, so that the online invalid query data volume is reduced, the effective query data volume is increased, the query efficiency can be improved, and the number of point locations supported by a single gateway is increased.

Description

technical field [0001] The invention relates to the technical field of the Internet of Things, in particular to an RS485-based Modbus protocol grouping method. Background technique [0002] Industry 4.0 is the fourth industrial revolution led by intelligent manufacturing. Factories integrate production equipment, wireless signal connections and sensors into an ecosystem platform. This ecosystem can supervise the entire production line process and execute decisions autonomously. Systems, Internet of Things, Industrial Internet of Things, Cloud Computing, Cognitive Computing, and Artificial Intelligence. [0003] To put it simply, the goal of Industry 4.0 is to automate all labor in the process of natural resources from mining, collection, and production into commodities into the circulation field through intelligent systems as much as possible. In the previous industrial revolutions, the role played by people will be greatly downplayed in Industry 4.0, and intelligent manufa...

AI Technical Summary

Problems solved by technology

All the work is done by the cloud platform, which causes a lot of inconvenience, such as: the cloud needs to continuously integrate new sensors, the cloud cannot access a large number of points due to low efficiency, the real-time performance of the cloud is poor, and a large amount of traffic is wasted on low-end High performance required to execute all tasks on valuable data and in the cloud

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