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Visual Management on Gas Tankers

Gas tankers are massive ships with a limited crew, making them extremely difficult to monitor. Video surveillance systems, which use a large number of widely distributed devices, and fire prevention systems are both crucial elements of a gas tanker monitoring system.

The system used for this application is a legacy analog CCTV surveillance system that is completely independent from the main monitor and control SCADA system. With this system, the administrator responds to an event by first using the SCADA system to locate the event, and then accesses the appropriate surveillance camera from the CCTV system to view the location. The goal is to upgrade the system so that only one step is required. This is done by integrating the CCTV surveillance system into the SCADA system, in which case the surveillance system becomes a SCADA sub-system, making centralized control and monitoring possible.

System Requirements
- Upgrade to an IP video surveillance system for integration with the existing SCADA system
- Live video display (through the SCADA system)
- Enable events in the SCADA system to automatically trigger live video display
- All the devices need to be of rugged design and have an anti-explosion defense

  • MOXA
    MOXA is a leading provider of industrial networking, computing, and automation solutions for enabling the Industrial Internet of Things. Moxa offers a full spectrum of innovative, high-quality solutions that have been deployed in a wide variety of industries, including factory automation, smart rail, smart grid, intelligent transportation, oil and gas, marine, and mining.
  • Transportation
  • Quality Assurance
  • One of our customers would like to integrate their CCTV video surveillance system with their SCADA system on their gas tanker for faster and more convenient event monitoring and management. Considering the mission-critical nature and the harsh environment found on gas tankers, the system integrator opted to use Moxa's VPort 351, a 1-channel industrial video encoder that features a rugged industrial design with Class 1, Division 2 anti-explosion certification, to connect the analog CCTV PTZ cameras. The VPort 351 can instantaneously encode analog video to IP video streams, and then send the IP video streams to the remote control center for live display, video recording, and video analysis. In addition, the VPort supports multicast video streaming to allow multiple clients to receive video streams simultaneously—without consuming additional bandwidth. In this way, the captain and authorized crew members can easily view live video from their workstations.

    For software integration, the system integrator decided to use Moxa's VPort SDK PLUS, which allows for easy programming of remote live-video displays and PTZ control for system engineers through DSC workstations. VPort SDK PLUS, along with CGI commands, AcitveX Control, and API SDKs, allow the system integrator to seamlessly integrate IP video into the software system. Moreover, Moxa's VPort Video Gadget, which is included with SDK Plus, allows for coding-free video applications in SCADA systems.

    Product Solutions:
    1. VPort 351 Industrial Video Encoders
    Industrial design with a -40 to 75°C operating temperature and a fiber optic Ethernet port
    Class 1, Div. 2 certification for use in hazardous location
    Video stream up to 30 frames/sec at full D1 (720 x 480) resolution
    2-way (1 in/1 out) audio supported
    VPort SDK PLUS, including CGI commands, ActiveX control, and API SDK, for 3-party software developers

    2. SoftNVR IP Surveillance Software
    Up to 64 channels in a single system, Dual monitor display capability
    Simple and user-friendly setup for recording schedule
    Live viewing from popular web browsers or client software
  • Mature (technology has been on the market for > 5 years)
  • Structural Health Monitoring
    Structural health monitoring solutions ensure the safety and soundness of engineering structures such as a buildings and bridges. Structural health monitoring uses an assortment of sensors to collect and analyze data pertaining to any damage or deterioration that a structure may receive over the course of its life. The data that structural health monitoring systems acquire can help its users avoid structural failures and changes to the material and/or geometric properties of a structural system, including changes to the boundary conditions and system connectivity, which adversely affect the system's performance. The structural health monitoring process involves the observation of a system over time using periodically sampled response measurements from an array of sensors (often inertial accelerometers), the extraction of damage-sensitive features from these measurements, and the statistical analysis of these features to determine the current state of system health. For long term solutions, the output of this process is periodically updated information regarding the ability of the structure to perform its intended function in light of the inevitable aging and degradation resulting from operational environments. After extreme events, such as earthquakes or blast loading, health monitoring is used for rapid condition screening and aims to provide, in near real time, reliable information regarding the integrity of the structure.
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