The BT Department of Siemens Taiwan is integrating a video surveillance solution with a SCADA system, with the main purpose to activate video images from a field site camera when an alarm is triggered. The Siemens DESIGO™ building energy management system is used mainly for the HVAC (heating, ventilation, and air conditioning) system for building automation and control. In the past, if an alarm was activated, the system integrator of HVAC system needed to go to the field site to check what had happened. By activating the field site video with the alarm, the engineer can easily view the situation from the control center and respond to the alarm quickly. The DESIGO system supports a number of different application scenarios based on the situation and requirements at the field site. This customer was looking for a tool that can be used to program and configure the video functions quickly and accurately. After conducting a detailed product survey, they chose Moxa’s VPort 351 industrial video encoder as the hardware solution, and worked with Moxa to develop a video genie for DESIGO. For this project, Moxa's VPort 351 video encoders are connected to PTZ cameras at the remote site. When an alarm is triggered by intruders or a thermometer detects an abnormally high temperature, onsite video images will be sent to the control center via Moxa's EDS-208A entry-level unmanaged Ethernet switch. The engineer then can observe the scene from the main computer and take proper action without needing to visit the site to troubleshoot an event each time the alarm is triggered, saving both time and money. Product Solutions 1. VPort 351 Industrial Video Encoder • Industrial design with -40 to 75°C operating temperature and fiber optic Ethernet port • Video stream up to 30 frames/sec at full D1 (720 x 480) resolution • Pre/post-alarm video recording function for advanced surveillance • 2-way (1 in/1 out) audio supported • VPort SDK PLUS and 4-channel video surveillance software provided free of charge 2. EDS-208A 8-port Unmanaged Ethernet Switch • Redundant dual 12/24/48 VDC, 18 to 30 VAC power inputs • IP30 aluminum housing • Rugged hardware design well suited for hazardous locations (Class I Div. 2 /ATEX Zone 2) and maritime environments (DNV/GL) • -40 to 75°C operating temperature range (T models)
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