Renovation of Automation System Based on Industrial Internet of Things: A Case Study of a Sewage Treatment Plant

Abstract

The Industrial Internet of Things (IIoT) is of great significance to the improvement of industrial efficiency and quality, and to reduce industrial costs and resources. However, there are few openly-reported practical project applications based on the IIoT up to now. For legacy automation devices in traditional industry, it is especially challenging to realize the upgrading of industrial automation adopting the IIoT technology with less investment. Based on the practical engineering experience, this paper introduces the automation renovation of a sewage treatment plant. The legacy automation devices are upgraded by the central controller of a STM32 processor (Produced by STMicroelectronics company, located in Geneva, Switzerland), and the WeChatApplet (Developed by Tencent company, located in Shenzhen, China) is used as the extended host computer. A set of remote monitoring and control systems of sewage treatment based on the IIoT is built to realize the wide-area monitoring and control of sewage treatment. The paper describes the field hardware system, wide-area monitoring and control application program, management cloud platform and security technologies in detail. The actual operation results show that the monitoring system has the requirements of high accuracy, good real-time performance, reliable operation and low cost.

Typical "State" Software Patterns for Creating Cortex-M Microcontroller System Software Infrastructure in Real Time Embedded Systems

“…Аналіз літературних даних і постановка проблеми. У роботах [2][3][4][5] описано технічні рішення на основі МК Cortex-М, але не приділено уваги питанням уніфікації і стандартизації для подальшого супроводження коду і дослідженням покращення швидкості. У цих роботах не створено універсальної програмної інфраструктури, шаблонів для подальшого використання.…”

A Software Architecture for the Industrial Internet of Things—A Conceptual Model

“…In [ 32 ], an IIoT application for a sewage treatment plant is proposed. This IIoT solution uses control station systems based on the STMicroelectronics STM32 microcontrollers to update the automation system and to activate the IIoT concept.…”

Development of typical "state" software patterns for Cortex­M microcontrollers in real time

“…The infrastructure management solutions built on Internet technology are outlined in [8]. The implementation of high-speed software remains a problematic issue.…”

“…One of the solutions to the above issues concerning the hardware of the ASC prototype, outlined in [3][4][5][6][7][8] is the use of relatively inexpensive general-purpose Cortex-M architecture MCs.…”