Critical parameter monitoring system for improving the safety of personnel operating in hazardous areas

摘要

A critical parameter monitoring system for improving the safety of personnel working in a remotely located hazardous location possibly containing combustible materials include an oxygen and a temperature sensor carried by the personnel. The sensors are connected to a centrally located processor which displays the oxygen level and temperature present at the sensors and issues a warning when the measured parameters exceed preset levels. The monitoring system may be a part of a breathing apparatus which supplies air and voice communications from the centralized location to personnel working in a vessel purged with an inert gas. The measured oxygen level may also be used to conserve the quantity of inert gas used in the purging process while preserving the safety of the workers.

主权项

1. In a life support apparatus enabling personnel to provide services to within the interiors of one or more remotely located vessels under a largely inert atmosphere with the possibility of pyrophoric materials or combustible gas being present in which breathable air and duplex voice communications are provided to personnel from a central location via an umbilical cable, an improvement of a critical parameter monitoring system comprising;
a. an oxygen sensor and a temperature sensor located adjacent each personnel and arranged to provide signals representative of the oxygen concentration and temperature, respectively; and b. a system processing unit located at the central location and connected to each of the sensors, the system processing unit arranged to translate the signals from the sensors into the oxygen concentration and the temperature present at the sensors.