Determining the efficiency of respirators and protective clothing, and other improvements
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Accused Products
Abstract
A respirator system (10; 100) for a worker in an environment with hazardous airborne contaminants comprises a respirator (12, 112), a helmet (14, 114), a camera (40, 140), and a gas sample analyser (16, 116) capable of analysing samples of gas from within the respirator and in the immediate area near the user. An RF emitter (20, 120) sends a signal to a remote receiver (24, 124). The emitted signal is a real time view through the camera (40, 140) and overlaid on that is a graphical representation of the protection factor being achieved by the respirator. The system (100) may also have a data storage device (162, 170) to store data such as how protection factor varies with time and may have a position sensor (160). The provision of the position sensor (160) allows a map of contamination levels with position to be built up as a user moves around a site.
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Citations
37 Claims
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1-31. -31. (canceled)
- 32. A programmed data carrier carrying instructions which when run on a computer instruct the computer to process signals received by a signal handler of a portable respirator system in order to evaluate the Protection Factor of the respirator.
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34. A method of creating a map of environmental conditions with location for an area of interest, comprising:
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using one or more persons as a mobile sensor by providing the person with a portable respirator system comprising a sensor and a signal handler, providing a position sensor adapted to provide a signal from which the position of the respirator system in space can be determined, causing the person to move around an area while detecting environmental conditions in the vicinity of the person and at the same time determining associated position data so that the environmental conditions at a plurality of known positions within the said area are established, and creating a map of environmental conditions with location for the area. - View Dependent Claims (37)
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35. A method of monitoring the performance of respirators in lifelike operational situations, comprising:
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providing one or more persons with a respirator system having a signal handler, and observing signals handled by a signal handler or observing parameters derived from those signals.
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36. A method of monitoring the performance of a person in lifelike operational situations, comprising:
causing the person to perform duties while carrying or wearing a camera and one or more sensors, wherein the camera is adapted to produce processed images recorded by the camera and simultaneously visually display a contemporaneous sensor value or a value derived from the sensor value.
Specification