Environment Supervisory Control of Computer Room Based on Android Device

This research designs environment supervisory control system of computer room which consists of multiple Android environment controllers and one supervisory control server. An Android environment controller is a controller based on Android device. The controller contains an Android device, a Wi-Fi wireless access point, a switch hut (or NAT) and three data acquisition modules. The Android device enters TCP/IP LAN through the Wi-Fi access point. The data acquisition modules with TCP/IP interface are plugged into the LAN, and read/written by the Android device with Modbus TCP/IP protocol. Control logics are designed for computer room environment control. The controller monitors air conditioning systems, room temperature and humidity, fire alarm systems, uninterruptible power supply (UPS) systems, electricity supply systems, leak detections, and door access control systems. If something happens, it can drive buzzer, alarm, voice dialing, or air conditioning, send SMS, voice mail, record audio, or video. A supervisory control server is used to help remote controls of all Android environment controllers. All Android controllers send their operation data to the server. Authorized user can login to the server to monitor and control certain Android controller with a browser or Android device.

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Web-Based Supervisory Control System Based on Raspberry Pi

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.764-765.640 ◽

2015 ◽

Vol 764-765 ◽

pp. 640-643 ◽

Cited By ~ 1

Author(s):

Wu Jeng Li ◽

Shu Chu Tung ◽

Shih Miao Huang

Keyword(s):

Control System ◽

Supervisory Control ◽

Air Conditioning ◽

Low Cost ◽

Raspberry Pi ◽

Monitoring And Control ◽

Web Based ◽

Environment Control ◽

Uninterruptible Power ◽

Supervisory Control System

This research designs a web-based supervisory control system based on Raspberry Pi. The system consists of one Raspberry Pi single-board computer and multiple data acquisition modules. The sensing and driving of the system are completed by reading/writing those data modules through RS485 interface by Modbus RTU protocol. Embedded database is used to store input/output data. Embedded web server provides interface for remote monitoring and control. The system was applied to environment control for computer room. It monitors air-conditioning systems, room temperature and humidity, fire alarm systems, uninterruptible power supply (UPS) systems, electricity supply systems and door access control systems. If something happens, it can drive buzzer, alarm, voice dialing, or air conditioning. The focus of this paper is using software to integrate hardware available in the market to form a low cost reliable supervisory control system.

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A Web-Based Android Supervisory Control System

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.284-287.3211 ◽

2013 ◽

Vol 284-287 ◽

pp. 3211-3215 ◽

Cited By ~ 1

Author(s):

Shu Chu Tung ◽

Wu Jeng Li ◽

Shih Miao Huang

Keyword(s):

Control System ◽

Data Acquisition ◽

Mobile Phone ◽

Supervisory Control ◽

Access Point ◽

Web Based ◽

Home Security ◽

Control Framework ◽

Computer Aided ◽

Supervisory Control System

This paper designs a web-based Android supervisory control system. Android controller is used as a local controller to fit into a supervisory control framework. The framework includes a central server, a SMS device attached to the server, multiple local controllers, a remote control program and a ladder logic computer-aided design program. The Android controller contains an Android mobile phone, a Wi-Fi wireless access point, a switch hut (or NAT) and multiple data acquisition modules. The Android mobile phone enters TCP/IP LAN through the Wi-Fi access point. The data acquisition modules with TCP/IP interface are plugged into the LAN, and read/written by the Android mobile phone with Modbus TCP. The Android controller communicates with supervisory server with a specific m2m protocol which is based on http protocol. Once an Android controller is connected to the supervisory control framework, it can be monitored and controlled remotely with any browser. A web-based home security system is constructed to demonstrate the usage of the web-based Android supervisory control system. The control laws for the home security system are partially implemented with ladder logics designed with a computer-aided program in the framework. With a supervisory server serving multiple Android controllers, Cloud home security service is formed.

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The development of SCADA control and remote access for the Indlebe Radio Telescope

10.51415/10321/1504 ◽

2016 ◽

Author(s):

◽

Ajith Deoduth Dhaniram

Keyword(s):

Data Acquisition ◽

Radio Telescope ◽

Supervisory Control ◽

Elevation Angle ◽

Remote Access ◽

Short Message ◽

Lack Of Information ◽

Message Service ◽

Service Option ◽

Uninterruptible Power

The proposed supervisory control and data acquisition solution is intended to gather data from all sub-systems and provide control commands related to the Indlebe Radio Telescope. Currently the control commands are executed from the command line prompt of the Skypipe software. These control commands are used to change the elevation angle of the antenna. The supervisory control and data acquisition system will be interfaced to sub-systems namely; a programmable logic controller, a weather station, an uninterruptible power supply and a camera. It will be used to manually or automatically control the elevation angle of the antenna, includes a menu structure that allows for easy navigation to the sub-systems and allows for trending, alarming, logging and monitoring of all system parameters. The proposed system will mitigate the lack of information on the existing system. A global system for mobile communication unit has also been installed to monitor the temperature within the Indlebe control room, detect a power failure and communicate this information to supervisors, using its short message service option. Implementing a solution of this nature means that all data from the various sub-systems are brought together, giving a single platform to monitor data and provide manual and automatic control functionality. Problem solving, understanding and maintenance of the system will also become easier.

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