Products – Monitoring Systems

Airflow Monitoring Systems


The Airflow Indicator and Alarm System is a microprocessor-based system that provides a means of monitoring and measuring the velocity of airflow through an exhaust ventilation duct. The system provides audible and visual alarms, as well as a remote audible alarm when the airflow in the exhaust duct falls below a user-specified alarm set-point, or if the primary power fails.

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Battery Monitoring Systems


The Automated Battery Monitoring System (ABMS) collects, processes, displays and communicates battery system data for sealed or flooded batteries.

The Battery Current Monitoring System (BCMS) provides main storage battery current sensing and monitoring capability through a BCMS Integrator Unit, which is located outside the battery well. The BCMS continuously monitors main storage battery current and provides processed ampere data displays via the BCMS Integrator Unit. Ampere data and system status information are sent to the remote processors of the Electric Plant Control Panel (ECPC) throughout the ship.

Everything needed to operate, monitor and maintain a ship's battery system is available through a graphical user interface (GUI) on a single screen. This includes information capture and display of the highest and lowest cells during each battery charge or discharge. This ruggedized system is MIL-SPEC-qualified and offers automated monitoring that prevents risk to sailors. The key driver of this system is safety.

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Environmental Monitoring Systems

The EMS assembly senses environmental condition in guided missile tubes. The unit is equipped with sensors to monitor pressure, temperature and liquid level. The EMS reflects the utmost in design simplicity and reliability with an expected mean time between failures (MTBF) rate of 40,000 hours.

Power Bus Monitoring

The product is designed to detect and isolate bus faults using breaker trip signals to protect the power distribution system in the event of a potentially damaging fault. Multiple units monitor the power distribution system for fault current, reverse power and overpower conditions and communicate to other units using ring bus configuration and network connections to provide fault data and timing between units to coordinate fault protection actions. The product will operate in a standalone mode when the network connection is lost.

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Remote Video Surveillance System (RVSS)

The standard RVSS system provides for up to 25 cameras throughout a vessel to perform remote monitoring of various compartments, including:

  • Reactor Compartment
  • Machinery Space
  • Maneuvering Room
  • Diesel generator compartment and a number of other minor compartments

Features Include:

  • Capability to restrict data to authorized users
  • Operator selection and viewing of real-time images from any camera on the LAN (up to 25 cameras)
  • Camera images that include a textual description identifying compartment location
  • Availability of display images sequentially in either single- or split-screen mode
  • Pan/tilt and zoom functionality for potential camera expansion
  • Preset facility for altering the bandwidth for each individual camera
  • Record-on-demand
  • Playback of images

The RVSS cameras also meet extreme environmental conditions, with six cameras that are radiation hardened for use within the reactor area.

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