Electric fire simulator
First Claim
1. A method of simulating the response of a fire to an extinguishing agent comprising the steps of projecting an image of a fire on to a screen, determining the impingement location of a beam representing a stream of extinguishing agent on said screen, adjusting control associated with said image in a manner to occlude portions thereof directly associated with said impingement location and to occlude neighboring portions thereof indirectly associated with said impingement location and polling predetermined locations spaced on said image to adjust said control in a manner to restore said image to portions associated with said predetermined locations.
0 Assignments
0 Petitions
Accused Products
Abstract
A fire fighting simulator includes a projector to project an image of a fire on a screen and a shutter assembly to occlude portions of the image. The extinguishing agent is simulated by an infrared beam and the shutter assembly is controlled to occlude portions at locations impinged by the beam. The control also polls each element of the shutter assembly periodically and opens the elements selectively to simulate reflash of the fire.
39 Citations
14 Claims
- 1. A method of simulating the response of a fire to an extinguishing agent comprising the steps of projecting an image of a fire on to a screen, determining the impingement location of a beam representing a stream of extinguishing agent on said screen, adjusting control associated with said image in a manner to occlude portions thereof directly associated with said impingement location and to occlude neighboring portions thereof indirectly associated with said impingement location and polling predetermined locations spaced on said image to adjust said control in a manner to restore said image to portions associated with said predetermined locations.
- 10. Apparatus for simulating the response of a fire to an extinguishing agent comprising a screen, a projector to project an image of a fire on said screen, detectors to detect an impingement location of a beam representing a stream of extinguishing agent on said screen, a shutter assembly having a plurality of shutter elements each operable to occlude a respective portion of said image when in a closed state and a control to control said shutter elements and adjust said elements between an open state and said closed state, said control adjusting a shutter element directly associated with said impingement location toward a closed state upon detection of said impingement, adjusting adjacent shutter elements indirectly associated with said impingement location, and adjusting predetermined shutter elements toward an open state periodically to simulate reflash of said fire.
Specification