Message queuing telemetry transport (MQTT) protocol-based automatic proxy configuration (PAC) cloud operation and maintenance system

Abstract

The invention belongs to the technical field related to industrial control automation and discloses a message queuing telemetry transport (MQTT) protocol-based automatic proxy configuration (PAC) cloud operation and maintenance system. The system includes a programmable automation controller, a cloud platform and a monitoring client. The programmable automation controller is used for monitoring and acquiring state information of a field industrial device and transmitting acquired data to the cloud platform. The cloud platform is used for interacting information with the programmable automationcontroller and the monitoring client respectively. The monitoring client is used for acquiring data from the cloud platform and monitoring the field industrial device based on the data. The programmable automation controller includes a master station module and a slave station module. The master station module and the slave station module communicate via a controller area network open (CANopen) bus. The slave station module includes a slave station and a general packet radio service (GPRS) module. The GPRS module is used for providing a network connection function for the slave station. The MQTT protocol-based PAC cloud operation and maintenance system lowers the cost and improves the efficiency.

Description

technical field [0001] The invention belongs to the technical field related to industrial control automation, and more specifically relates to a PAC cloud operation and maintenance system based on the MQTT protocol. Background technique [0002] Industrial enterprises have a lot of expensive and complex types of equipment on site. Some equipment is used for a limited number of times and frequency, and some equipment is hidden due to the production process and is inconvenient to find. Many factors make the equipment in unsaturated operation for a long time or In the long-term idle state, the equipment is not fully and rationally utilized. Not only can the use function of the equipment be maximized to create value for production services, but also a large number of idle equipment will cause tangible and intangible wear and tear, which is difficult for fixed asset management and equipment on-site maintenance. and maintenance staff increased workload. [0003] At present, the m...

AI Technical Summary

Problems solved by technology

[0005] (1) It is impossible to use manual on-site actual processing for each project and each device;

[0006] (2) The cost of manual on-site processing is too high, resulting in high production energy consumption and low industrial production efficiency;

[0007] (3) The monitoring results are affected by artificial subjective factors;

[0008] (4) Unable to achieve 24-hour continuous monitoring

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