Abstract:
A training simulator including a housing having a prop portion configured to simulate or evoke an appearance of an object encountered in firefighting activity. The simulator has a sensation emitter coupled to the housing and configured to emit a sensation to simulate or evoke an appearance of a hazardous condition. The simulator further includes a sensor coupled to the housing and configured to detect a simulated or an actual hazardous condition suppressant directed at or applied to the housing, and a controller operatively coupled to the sensor and the sensation emitter.

Description:
[0001]    This application is a continuation of U.S. patent application Ser. No. 12/361,183 entitled HAZARD SUPPRESSION TRAINING SIMULATOR AND METHOD OF TRAINING, filed on Jan. 28, 2009, which in turn claims priority from U.S. Provisional Patent Application Ser. No. 61/063,115 entitled INTERACTIVE 3D SIMULATED FIRE SYSTEM filed on Feb. 1, 2008. The entire disclosure of both of these applications is incorporated by reference herein. 
     
    
       [0002]    The present system relates to hazardous condition suppressing training devices, for example, fire suppressant training simulators. In particular, aspects of the disclosure provide devices and methods for training personnel on the proper methods and techniques for suppressing hazardous condition, such as, fires, gas leaks, toxic spills, and the like, with little or no danger to the trainee. Aspects include simulators that simulate the hazardous conditions while monitoring the effectiveness of the trainee&#39;s hazard suppressing method and technique. 
       BACKGROUND 
       [0003]    Currently there is a large number of, what the fire industry refers to as, “props” used as live fire training aids. These props typically consist of a fire proof material, such as, steel, formed into the shape of a commonly encountered burning object, such as, a paint locker, electric motor, trashcan, stove pot, and the like. Typically, propane or natural gas flames are then sent through these props to mimic the effect of the props being on fire. Depending upon the training situation and specific prop, an extinguishant, most typically water, is sprayed on the prop using sound fire fighting techniques and, depending on whether the prop flame is operator controller or is electronically controlled with sensors, the fire that appears to be originating from the prop dies down or is extinguished. 
         [0004]    The prior art also include fire training systems that generate images of flames on a screen or using a plurality of light sources to generate the illusion of fire, for example, on a flat surface. See, for example, U.S. Pat. No. 7,748,983 to Blackburn, the disclosure of which is included by reference herein. Some of these systems can also include interactivity for training purposes such as the ability to receive some type of input from an actual or simulated type of fire extinguishing device, such as, a real or simulated fire extinguisher. Some of these systems also incorporate external influences as inactive items such as pull stations, power disconnect panels, alarms, telephones, smoke machines, etc., that respond in conjunction with the simulated fire on the screen or influence its progress. However, these and other related prior art systems fail to provide a truly three-dimensional interaction and training experience for the trainee: the prior art typically only provides a simulated two-dimensional training experience. Aspects of the present disclosure address this disadvantage of the prior art. 
       SUMMARY 
       [0005]    Aspects of the present disclosure address the limitations and disadvantages of the prior art by providing hazard suppression training simulators having training props that more accurately simulate real-life hazardous conditions, for example, by providing three-dimensional training props. Aspects of the disclosure include light sources, for example, a single or a plurality of light sources, that create the appearance or illusion of an actual fire originating from within or about an object. In addition, aspects may include the release of smoke, for example, proportional to the fire, and optionally sound effects to create a more realistic appearance of an object being on fire. In one aspect, sensors may be provided that are adapted to detect simulated or actual hazard suppressants, for example, a simulated or actual fire extinguisher. 
         [0006]    One aspect of the disclosure is a hazard suppression training simulator including or comprising a housing; at least one source of sensation (for example, visual, audio, smoke, fluid, sound, heat, smell, solid material, and lights, among other humanly sensible sensations) representing a hazardous condition; at least one sensor adapted to detect a simulated or an actual hazardous condition suppressant; and a controller adapted to vary the sensation in response to the simulated or the actual suppressant detected by the at least one sensor. The hazardous condition may be a fire, smoke, sparks, a steam leak, a gas leak, or a toxic fluid leak, a hazardous fluid leak, or a oxidizing gas leak, among other hazardous conditions. In one aspect, the training similar may simulate a condition that may promote or lead to one or more of the above hazardous conditions, for example, exposed electrical wires that may lead to fire ignition or a compromised or weakened pipe that is about to burst, among other conditions. In one aspect, the simulator may further include a prop mounted to the housing and positioned to receive the sensation from the source of sensation, for example, a device, machinery, hardware, furniture, a container, a structure, an accumulation, or an enclosure. In one aspect, a plurality of props may be provided which may be interchangeably mounted to the housing. In another aspect, the simulator may further include a display panel adapted to display a hazardous condition. 
         [0007]    Another aspect of the disclosure is a hazard suppression training method including or comprising: providing a hazard suppression training simulator as recited above to provide a simulated hazardous condition; providing a simulated or actual hazard suppression apparatus providing a simulated or an actual hazard suppressant; directing the simulated or actual hazard suppressant toward the simulator wherein the at least one sensor detects the suppressant; and modifying the simulated hazardous condition in response to the suppressant detected by the at least on one sensor. In one aspect of the disclosure, the simulated hazard suppression apparatus comprises a simulated fire extinguisher, a simulated fire hose, a simulated fire blanket, or the actual hazard suppression apparatus may be an actual fire extinguisher, fire hose, or fire blanket. The actual hazard suppressant may be water, carbon dioxide, Halon, a cloth or blanket, a powdered chemical, a foam, air, an aerosol, or combinations thereof. The simulated hazard suppressant may be an audible signal, an electromagnetic signal, an ultrasonic signal, a pressure signal, a heat signal, a particulate signal, a fluid signal, a gas vapor signal, or a combination thereof. 
         [0008]    These and other aspects, features, and advantages of this invention will become apparent from the following detailed description of the various aspects of the invention taken in conjunction with the accompanying drawings 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0009]    The subject matter, which is regarded as the invention, is particularly pointed out and distinctly claimed in the claims at the conclusion of the specification. The foregoing and other objects, features, and advantages of the invention will be readily understood from the following detailed description of aspects of the invention taken in conjunction with the accompanying drawings in which: 
           [0010]      FIG. 1  is a perspective view of a hazard suppression training simulator according to one aspect of the disclosure. 
           [0011]      FIG. 2  is an exploded perspective view of the training simulator shown in  FIG. 1 . 
           [0012]      FIGS. 3, 4, 5, and 6  are perspective views of various props that can be used in the simulator shown in  FIG. 1  according to aspects of the disclosure. 
           [0013]      FIG. 7  is a perspective view of the training simulator system having the training simulator shown in  FIG. 1  and a display panel according to another aspect of the disclosure. 
           [0014]      FIG. 8  is a perspective view of another training simulator according to another aspect of the disclosure. 
           [0015]      FIG. 9  is a top plan view of the aspect of the disclosure shown in  FIG. 8 . 
       
    
    
     DETAILED DESCRIPTION 
       [0016]    Features of the hazard suppression training simulator and hazard suppression training method according to aspects of the invention will be apparent from the following detailed description. 
         [0017]      FIG. 1  is a perspective view of a hazard-suppression training simulator  10  according to one aspect of the disclosure.  FIG. 2  is an exploded perspective view of the training simulator  10  shown in  FIG. 1 . As shown in  FIGS. 1 and 2 , training simulator  10  typically includes a housing  12 , at least one source of sensation  14 ,  16 , and/or  18 , for example, a visual, audio, smoke, fluid (gas or liquid), sound, heat, solid materials, smells, lights, etc., representing a hazardous condition, for example, a fire; at least one sensor  20  adapted to detect a simulated or an actual hazardous condition suppressant; and a controller  22  (shown in phantom in  FIG. 1 ) adapted to vary the sensation produced by the source of sensation  14 ,  16 , and/or  18  in response to the simulated or the actual suppressant detected by the at least one sensor  16 . As shown, housing  12  may include a top or cover  24 . 
         [0018]    Though housing  12  is shown as a parallelepiped, that is, a rectangular box, in  FIGS. 1 and 2 , housing  12  may assume any convenient shape suitable to enclose or accommodate one or more sources of sensation  14 ,  16 , and/or  18 . For example, housing  12  may be circular cylindrical, rectangular cylindrical, square, spherical, hemispherical, or pyramidal, among other shapes. 
         [0019]    Sources of sensation  14 ,  16 , and/or  18  may be any source of sensation that can be used to simulate a hazardous condition, for example, a source of light, sound, smoke, fluid, smell, heat, etc. For example, as shown in  FIG. 2 , source  14  may be one or more sources of light simulating a fire or sparks. In one aspect, source of light  14  may be one or more sources of light, for example, one or more sources of colored light, for instance, to simulate the red, yellow, and orange hues of a flame. In addition, source of light  14  may vary the light provided to simulate an active fire, for example, a roaring or a raging fire. One or more sources of light  14  may include a least one source of light, but typically, employs a plurality of light sources, for example, a plurality of light sources located in housing  12 , for instance, evenly distributed about the inside of housing  12  or evenly distributed about a light display panel  15 . In another aspect, source of light  14  may comprise light guides, a CRT, a monitor, for example, flat screen monitor, or a liquid crystal display, among other types of displays, upon which a varying light pattern may be displayed. Light source  14  may be mounted on one or more panels  15  mounted in housing  12 , for example, by means of conventional mechanical fasteners. Light sources  14  may comprise incandescent lights, fluorescent lights, electroluminescent lights (that is, “EL” lights), plasma lights, lasers, or light emitting diodes (LEDs). In one aspect of the disclosure, panels  15  may be printed circuit boards (PCBs) and light sources  14  may comprise a plurality of LEDs mounted to PCBs. In one aspect, light panel  15  may include from about 1 to over 5 million light sources, for example, LEDs evenly distributed about one or more PCBs. One such panel may be a light panel having part number FPP-1 provided by BullEx Digital Safety of Menands, N.Y., or its equivalent. 
         [0020]    As also shown in  FIG. 2 , source of sensation  16  may be a source of smoke simulating a fire, an incipient fire, a smoldering fire, or a source of hazardous or toxic fluids (including liquids or gases), for example, propane, natural gas, gasoline, kerosene, diesel, methane, carbon monoxide, oxygen, aerosol, corrosive acid, or biologically hazardous waste, among other fluids. In one aspect, source of smoke  16  may be a conventional smoke generator, for example, a smoke generator marketed under the name Alpha 900, by Rosco, though any conventional smoke generator may be used. In one aspect, the quantity or character of the smoke generated may vary depending upon the simulated source of the smoke or depending upon the suppressant, extinguishant, or simulated suppressant or extinguishant applied to training simulator  10 . For example, large amounts of smoke may be emitted when a specific extinguishing or suppressing method is used. 
         [0021]    Another source of sensation  18  may be any source of sound, for example, one or more electrical speakers  18 . For example, speakers  18  may be a source of audible sound simulating a hazardous condition, for example, the zapping, crackling, smothering, etc. of a fire, the hissing sound of a gas leak, the sound of a fluid leak, the sound of steam on hot metal, and/or the sound of impact of a simulated or actual suppressant or extinguishant upon the simulated hazardous condition. The source of sound  18  may be coordinated with a source of light  14  and the source of smoke  16  to more realistically simulate the hazardous condition. 
         [0022]    Sensors  20  may be any type of sensor adapted to detect the presence of a simulated or actual hazard suppressant or extinguishant and generate an electrical signal corresponding to the presence of the suppressant or extinguishant. According to aspects of the disclosure, sensor  20  may be adapted to detect any stimulus emitted by a simulated or actual suppressing agent, for example, a real or simulated fire extinguisher. For example, one or more sensors  20  may be adapted to detect a wavelength of radiation within the electromagnetic spectrum, for example, visible light, radio waves, or microwaves; a pressure wave, for example, a sonic signal, for example, an ultrasonic signal or an audible signal, for example, simply the noise generated by a suppressing agent being dispensed, a voice command from a trainer to a trainee, or a wave of air; a fluid emitted by a suppressing agent, for example, a fire extinguishing agent, such as water, an air-water mixture, carbon dioxide, sodium bicarbonate, cornstarch, or a combination thereof; a fluid simulating an extinguishant; a sold, for example, a solid particulate; and combinations thereof. The class of radiation within the electromagnetic spectrum that may be detected by sensors  20  includes, but is not limited to, ultraviolet (UV), visible, infrared (IR), far infrared, microwaves, and radio frequency (RF), and combinations thereof. According to one embodiment of the present invention, the term “sonic” includes any stimulus transmitted by compression waves in a medium, such as air, for example, from the infrasonic waves, to audible waves (about 20 to about 20,000 Hz), to ultrasonic waves. In one aspect of the disclosure, sensor  20  may comprise an ultrasonic sensor, for example, a piezoelectric ultrasonic sensor provided by Murata Manufacturing Company, or its equivalent. 
         [0023]    In one aspect, the one or more sensors  20  may also be adapted to detect audible directives, for example, verbal directives from a trainee or a trainer. Audible directives may include but are not limited to oral/verbal directives given by a trainee or a trainer or by an artificial voice synthesized/digital voice. Sensors  20  or simulator  10  in general may also be adapted to receive electronic-based directives or orders, such as those that can be given by a computer, a minicomputer, a remote device, or a personal digital assistant (PDA). In addition to the pressure waves mentioned above, in one aspect, sensors  20  may be adapted to detect wave patterns, for example, repeating patterns of high pressure and low pressure regions moving through a medium, for instance, as can be provided by sound patterns or vibration patterns emitted by a fire suppressing device, such as a fire extinguisher, or its equivalent. 
         [0024]    According to aspects of the disclosure, the simulated hazardous condition effected by the sources of sensation  14 ,  16 , and/or  18  may be regulated or controlled by controller  22 , for example, in response to the suppressant detected by the one or more sensors  20 . For example, controller  22  may be used to vary the operation of the sources of sensation  14 ,  16 , and/or  18  to simulate the effect of applying an extinguishant or a simulated extinguishant onto a simulated fire in or about prop  30 , for example, displaying a diminished or extinguishing fire when the extinguishant is applied correctly or an enhanced or enraging fire, for example, when the extinguishant is applied incorrectly. Though no electrical connections are illustrated in  FIGS. 1 and 2 , it will be understood that sources of sensation  14 ,  16 , and  18 , sensors  20 , and controller  22  may typically be powered by conventional means, for example, plugged into a wall outlet, and may be connected and communicate via wires or cables, or wirelessly. Controller  22  may be any conventional electronic controlling device, such as, a computer, a programmable logic controller (PLC), a microprocessor (such as, an embedded microprocessor), or a networked control device, among others. Controller  22  may typically have a user interface, not shown, for example, a keyboard or hand held input device for varying or controlling the operation simulator  10 . Controller  22  may comprise a 56800 series Microcontroller/DSP Hybrid controller provided by Motorola, or its equivalent. Controller  22  may include a display and may include one or more shift register drivers to drive the operation of the sources of sensation  14 ,  16 , and/or  18 . 
         [0025]    According to one aspect of the disclosure, hazard suppression training simulator  10 , may include one or more “props”  30 . As used herein and in the attached claims, a prop may comprise any device or structure associated with the hazardous condition. For example, props may be live fire training aids, that is, objects, devices, containers, and the like, that are on fire. These props may include, but are not limited to, simulated or real machinery, such as, an engine, a pump, a parts washer, a stove, or a furnace; an electric device, such as, an electric motor, a generator, an electrical panel, or electronic equipment, for example, a computer; an enclosure, such as, cabinet, a shelf, a locker, or a paint locker; a container, such as, a box, a can, a trashcan, a stove pot, a tank, a storage drum, an electrical enclosure, or a vessel; a piece of hardware, for example, a valve, a pipe, a pipe flange, or a pipe fitting (for example, a piece of hardware or container that may be leaking a fluid, such as, steam or a toxic fluid), a manifold, a pipe sensor, a hose, or a cable, among others; furniture, for example, a bed, a table, a chair, or a dresser; a household item; or a home and garden item, for example, a deck section, a window, a wall section, a roof section, a gutter, an accumulation or collection of material (for example, a pile of sticks, a pile of leaves, or a pile of brush), or one or more trees, among other simulated or real objects or structures associated with a hazardous condition. In the aspect of the disclosure shown in  FIGS. 1 and 2 , prop  30  comprises an electric motor for the sake of illustration, but any of the props mentioned above may be used. 
         [0026]    In one aspect, prop  30  may be made of a fireproof material, such as, steel, but may also be flammable, such as, made of plastic or wood. According to aspects of the present disclosure, the one or more props  30  may be mounted to housing  12  and positioned to receive the sensation from one or more of the sources of sensation  14 ,  16 , and/or  18 , for example, to simulate the prop  30  being engulfed in flame. In one aspect of the disclosure, the one or more props  30  may be removably mounted to the housing, for example, whereby a plurality of props may be interchangeably mounted to housing  12 . In one aspect, the one or more props  30  may be removably mounted to housing  12  whereby a plurality of training experiences can be provided, for example, a first training exercise on a first prop and a second training exercise on a second, different prop. 
         [0027]      FIGS. 3, 4, 5, and 6  are perspective views of various props that can be used in the simulator  10  shown in  FIGS. 1 and 2  according to aspects of the disclosure.  FIG. 3  illustrates a wastebasket or trashcan  32  that may be used as a prop for simulator  10 , for example, to simulate a fire in a wastebasket.  FIG. 4  illustrates a pot  34  that may be used as a prop for simulator  10 , for example, to simulate a fire in a pot  34  resting on a burner  35 .  FIG. 5  illustrates a barrel  36  that may be used as a prop for simulator  10 , for example, to simulate a fire in barrel  36 . As shown in  FIG. 5 , barrel prop  36  may be modified to accommodate mounting on housing  12 , for example, having a cutout  37  to accommodate the geometry of housing  12 .  FIG. 6  illustrates a paint locker  38  that may be used as a prop for simulator  10 , for example, to simulate a fire in paint locker  38  having one or more paint cans  39 . It will be apparent to those of skill in the art that other objects and devices may also be used as one or more props for simulator  10 . In another aspect of the disclosure, at least one of the components positioned in housing  12 , for example, one of the sources of sensations  14 ,  16 , and/or  18 , sensors  20 , and/or controller  22  may be positioned in a prop, for example, in prop  30 ,  32 ,  34 ,  36 , or  38 , where housing  12  may be reduced in size or eliminated entirely. For example, in one aspect, all the ancillary devices, for example, the sources of sensations  14 ,  16 , and/or  18 , sensors  20 , and/or controller  22  may be positioned in the prop and no housing  12  may be necessary. 
         [0028]    The simulation effected by simulator  10 , for example, by means of sensors  20  and controller  22 , may also be varied depending upon the prop  30  being used. For example, certain props  30  may require the use of specific fire fighting techniques while other props may require a different fire fighting technique. In one aspect, the prop  30  may be a container, for example, a cylindrical container, having a bottom and an open top, wherein the at least one sensor  20  is positioned at the bottom of the cylindrical container and is accessible only from the open top of the container. For instance, a prop  30 , such as, trashcan  32  shown in  FIG. 3 , may require a more three-dimensional fire fighting technique to extinguish a fire. Specifically, in one aspect, when the trashcan prop  32  is used to simulate a fire, the extinguishing agent must typically be aimed into the can from above to be extinguished. According to this aspect of the disclosure, simulator  10  and its operation may be modified whereby the one or more sensors  20  may be positioned in the bottom of trashcan prop  32  whereby the trainee must direct the extinguishant or simulated extinguishant down into the trashcan prop  32  to extinguish the simulated fire in the trashcan prop  32 . In another three-dimensional aspect, the trainee may be required to place a lid or a blanket or other sheet material over the trashcan prop  32  to extinguish the simulated fire. In order sense proper technique, trashcan prop  32  may include one or more detectors to sense the placement of the blanket or lid, for example, one or more photosensitive sensors in trashcan prop  32  or one or more proximity sensors in the open top of trashcan prop  32 . Other prop-specific modifications or sensor positions will be apparent to those of skill in the art to provide the desired training experience. 
         [0029]      FIG. 7  a perspective view of the training simulator system  40  having simulator  10  shown in  FIG. 1  and a display panel  42  according to another aspect of the disclosure. In one aspect of the disclosure, simulator  10  may be interfaced with display panel  42  to further enhance the realistic simulation of a hazardous condition, for example, a fire, flame, or steam leak, or a condition that may promote or lead to one or more of the above hazardous conditions, for example, exposed electrical wires that may lead to fire ignition or a compromised or weakened pipe that is about to burst, among other conditions. For instance, display panel  42  may be adapted to display a hazardous condition, for instance, flames emanating from a prop  30  or flames extending from trashcan  32 , flames extending three or more feet above the top of trashcan  32  or a similar prop, or steam escaping from a pipe or pipe flange, among other hazardous conditions. When a display panel  42  is provided, controller  22  may be adapted to vary the hazardous condition on the display panel  42  in response to the suppressant detected by the at least one sensor  20 . Display panel  42  may comprise the display panel disclosed in U.S. Pat. No. 7,748,983 to Blackburn, the disclosure of which is incorporated by reference herein in its entirety, or any other display adapted to display a hazardous condition, for example, fire, smoke, sparks, steam, etc. 
         [0030]    In addition, display panel  42  may also be used to provide enhanced levels of interactively between simulator  10 ,  40  and the trainee (not shown). For example, display panel  42  may be used to display a simulation of a fire spreading from a prop  30  to an adjacent object or structure, for example, a wall or curtain, or fire spreading from an adjacent object or structure to prop  30 . Display panel  42  may also be used to provide a display of the effect of the use of the simulated or real extinguishant or suppressant on the hazardous condition. For example, display panel  42  may be used to display the effect of applying an extinguishant or a simulated extinguishant onto a simulated fire in or about prop  30 , for example, displaying a diminished or extinguishing fire when the extinguishant is applied correctly or an enhanced or enraging fire, for example, when the extinguishant is applied incorrectly. Display panel  42  may also display other objects or structures in the vicinity of or adjacent to prop  30 , for example, hazard suppressant equipment, such as, an extinguisher or fire hose; an electric control panel; a pull station; room lighting; sprinklers; valves, such as, a gas shutoff valve; an alarm, a door or phone, among other objects or structures. 
         [0031]    According to one aspect of the disclosure, simulator  10  and/or system  40  may also include simulated or actual objects or structures in the vicinity of or adjacent to housing  12  or prop  30 , for example, hazard suppressant equipment, such as, an extinguisher or fire hose; an electric control panel; a pull station; room lighting; sprinklers; valves, such as, a gas shutoff valve; an alarm; simulated heat; a door; and a phone, among other real or simulated objects or structures. In one aspect, a sparking electrical device may be provided, for example, a sparking electrical box or sparking motor, and similar  10  and/or system  40  may be adapted to simulate the ignition of a prop, for example, prop  30 ,  32 ,  34 ,  36 ,  38  or a prop simulating an open parts washer container, among other props, by the sparking electrical device. 
         [0032]    In another aspect of the disclosure, instead of the prop  30  being mounted to simulator  10  as shown in  FIG. 1 , the sources of sensations  14 ,  16 , and/or  18 , sensors  20 , and controller  30  may be positioned or embedded within the one or more props  30 . This aspect of the disclosure may be more practical when more direct interaction with the prop or a compact size of the prop is advantageous. In addition, large props, such as, vehicles and even structures, may be instrumented with sources of sensations  14 ,  16 , and/or  18 ; sensors  20 ; and/or a controller  22  to simulate a hazardous condition requiring suppression, for example, a fire or a toxic fluid spill. For example,  FIG. 8  is a perspective view of another training simulator  50  according to another aspect of the disclosure.  FIG. 9  is a top plan view of the aspect of the training simulator  50  shown in  FIG. 8 . As shown in  FIGS. 8 and 9 , training simulator  50  includes a pot  52  having one or more sources of sensation  54 ,  56 , one or more sensors  58 , and a controller (not shown). According to this aspect of the disclosure, pot  52  provides the housing for the simulator. Though in  FIGS. 8 and 9  the prop is shown as a pot, it will be understood that, according to aspects of the disclosure, simulator  50  may employ any one or more of the props  30  described above, for example, a trashcan or an electrical cabinet. The controller may comprise any one of the controlling devices disclosed above with respect to controller  22 . Sources of sensation  54  and/or  56  may comprise any one or more of the sources described above with respect to sources of sensation  14 ,  16 , and  18 . In the aspect of the disclosure shown in  FIGS. 8 and 9 , for illustration, source of sensation  54  comprises a plurality of light sources, one or more sources of sound, and/or one or more sources of smoke which combine to simulate a fire in pot  52 . 
         [0033]    Also, sensors  58  may comprise any one or more of the sensors described above with respect to sensors  20 . Sensors  58  may be positioned anywhere in, on, or about pot  52 , that is, wherever it is convenient to detect the presence of a suppressant, an extinguishant, or a simulated extinguishant. However, in the aspect of the disclosure shown in  FIGS. 8 and 9 , sensors  58  are positioned about the rim of pot  52  to detect the presence of an extinguishant or the presence of a suppressant adapted to smother a simulated fire in pot  52 . For example, sensors  58  may be positioned about the rim of pot  52  to sense whether a trainee has properly smothered the simulated fire, for example, by means of a fire blanket or a similar smothering device, or simply by properly placing a top (not shown) on pot  52 . 
         [0034]    It will be apparent to those of skill in the art that aspects of the disclosure can provide an effective means for training safety personnel, for example, fire fighters and first responders, and ordinary citizens, in the proper use of hazard suppressant equipment. However, it will be understood by those of skill in the art that aspects of the disclosure may provide even more than simply training to put out fires; aspects of the disclosure can provide means to expose the trainee to emergency scenarios that simulate actual real-life emergency environments. For example, the three-dimensional props that characterize aspects of the disclosure may enable the trainee to become immersed in a simulated emergency environment that better prepares the trainee for the actual real-life experience. In addition, aspects of the disclosure avoid the use of fossil fuels that may characterize prior art training devices and methods and aspects of the disclosure can minimize or avoid the need for effluent collection and disposal that may be required when employing actual suppressants, such as, fire extinguishers. Though aspects of the disclosure will be useful in training personnel in fire suppressant techniques, it will be apparent to those of skill in the art that aspects of the disclosure art not limited to training fire suppressant techniques, but can be useful in training in suppressing a broad range of hazardous conditions. 
         [0035]    While several aspects of the present invention have been described and depicted herein, alternative aspects may be effected by those skilled in the art to accomplish the same objectives. Accordingly, it is intended by the appended claims to cover all such alternative aspects as fall within the true spirit and scope of the invention.