A Distributed, Extensible and Accessible Sensory Control and Data Acquisition System

L. Bernardo, A. Carandang Jr., T.G. Castillo, A. Lee, W.F. Tupaz Jr., W.S. Yu and T.H. Calasanz

Abstract:

The Sensory Control and Data Acquisition - Total Environment Management System (SCADA-TEMS) is a distributed multi-access computer controlled data acquisition and control system. The system is composed of multiple sensory and control modules that perform tasks ranging from controlling remote equipment to collecting, multiplexing and manipulating data. The SCADA-TEMS main control module performs the necessary buffering, latching and multiplexing of the multiple input and output hardware modules connected to the system. This module is in turn interfaced to the SCADA-TEMS server. The team developed a FTP-like TCP/IP protocol called Simple Access and Control Protocol (SACP) in which the SCADA-TEMS server can be accessed using a PHP web-based interface, Java Swing GUI client interface, SMS-to-SACP gateway or raw socket connection to port 6543. Multiple SCADA-TEMS servers can be controlled by a central SACP client to provide distributed access. New modules can be utilized by attaching them to the SCADA-TEMS main control module and loading the appropriate shared object. These and other features allow the SCADA-TEMS to become a critical tool in providing a complete environmental management solution.