Two wire automatic remote sensing and evaluation systems

The Two Wire Automatic Remote Sensing and Evaluation System (TWARSES) automatically transmits and evaluates information (data) from remote sensors on a common two wires bus. In addition, the system presents automatic evaluation and alarms which provide both location data and sensor readout data of the monitored area. This system is a stand-alone modular system in which a common two wire line installed bow-to-stern and top-to-bottom contacts, integrates, evaluates, and powers most sensors. The United States Navy uses this system to provide safety and survivability by monitoring environmental gases, liquid levels, power, temperature, and humidity levels on ships and in office buildings. The system automatically polls all sensor transponders who first energized, then evaluates the output of each sensor against preset limits. The internal program is designed so that any sensor can have limits listed and the printout and alarm will be initiated by an out-of-limit condition. This system permits both data evaluation, printed listings, recorded cards and displays to be done automatically, with alarms on all types of specific conditions