JPH0648419B2 - Fire extinguisher training simulator - Google Patents

Description

The present invention relates to a video display device such as a monitor TV and a fire extinguisher training simulation device capable of performing fire extinguishing training by simulation using a simulated fire extinguisher or the like.

(b) Conventional technology Regular fire drills are conducted at business establishments, schools, small-scale community associations, etc. that have a certain size.

As part of this, as an initial fire extinguishing training using a fire extinguisher, fire extinguishing training has been conventionally performed by actually burning a kerosene or wood and using an actual fire extinguisher.

(c) Problems to be Solved by the Invention However, in the conventional fire extinguishing training as described above, a small fire is actually generated and an ordinary fire extinguisher is used. There is a need to. In addition, a combustible material such as kerosene or wood and a real fire extinguisher had to be prepared each time, and it was very troublesome to clean up after that. Moreover, since expensive fire extinguishers were used, many people could not actually train, and the trainers dispatched from the fire department had only to demonstrate.

The purpose of this invention is to create a fire without actually
A fire extinguisher simulation device that solves the above-mentioned various problems is provided by displaying a fire image and enabling a simulated fire extinguisher to simulate a fire extinguishing activity.

(d) Means for Solving the Problems A fire extinguisher training simulator according to the present invention is provided with a video signal reproducing device for reproducing a video signal of a fire whose scale is enlarged or reduced, and an output signal of the video signal reproducing device. And a video display device for displaying an image, a simulated fire extinguisher having a simulated nozzle and capable of performing a simulated spraying operation of the extinguishant, means for detecting the simulated spraying operation of the extinguishant, and A means for detecting a position on the video display device on which the simulated nozzle is directed as a nozzle directivity position, a means for obtaining an evaluation value indicating a fire extinguishing effect from the nozzle directivity position, and the video signal reproducing device according to the evaluation value. It is characterized by comprising means for controlling and changing the scale of a regenerated fire in a direction of expansion or contraction.

(e) Action In the fire extinguisher training simulator of the present invention, the video signal reproducing device re-emits a fire video signal in which the scale of the fire expands or contracts, and the video display device inputs the reproduction signal to display the fire image. indicate. The simulated fire extinguisher is equipped with a simulated nozzle for performing an operation of ejecting the extinguishant in a simulated manner, and when the simulated ejection operation of the extinguisher of this simulated extinguisher is detected, the image display device is displayed. The nozzle pointing position where the simulated nozzle points is detected, the evaluation value indicating the fire extinguishing effect is obtained from the nozzle pointing position, the video signal playback device is controlled according to the evaluation value, and the scale of the fire that is the playback video is determined. Change to enlargement or reduction.

Therefore, when the direction of the fire extinguisher nozzle is in the center of combustion in the fire image displayed on the image display device, the fire scale is reduced, and conversely, when the fire extinguisher nozzle is out of the center of combustion. If it is related so as to expand the scale of the fire, it is possible to easily grasp the handling method of the fire extinguisher, especially the ejection direction of the fire extinguisher having a high fire extinguishing effect. Moreover, since it is not necessary to generate an actual fire and use an actual fire extinguisher, a large number of people can participate in fire extinguishing training, for example, indoors, and cleaning up after the training is extremely easy.

(f) Embodiment FIGS. 1 and 2 show the appearance of a video display device and a simulated fire extinguisher of a fire extinguisher training simulator according to an embodiment of the present invention.

In FIG. 1, 10 is a monitor TV, which uses a normal color CRT in the vertical direction. Six microphones 1 to 6 are provided around the cathode ray tube.

As shown in FIG. 2, the simulated fire extinguisher has substantially the same shape and the same weight as the actual fire extinguisher, and the operation feeling thereof is close to that of the actual fire extinguisher. In FIG. 2, 47 is a container, 48 is a lever, 49 is a hose, and 50 is a nozzle. Container 47
A control circuit described later is housed inside. Also, container 4
A switch for detecting the operating state of the lever 48 is provided on the mounting portion of the lever 48 for the device 7. Furthermore, the nozzle 5
At 0, a speaker having a high directivity that generates a synthetic sound simulating the sound of the extinguishing agent is provided.

FIG. 3 is a block diagram of the monitor TV shown in FIG. 1 and a circuit connected thereto. In FIG. 3, 10 is a monitor TV, and 1 to 6 are super-unidirectional microphones having a sharp directivity directed in the display surface direction of the cathode ray tube. Microphone amplifiers 11 to 16 are connected to these microphones 1 to 6. The microphone signal selector 17 selects any one of the outputs of these microphone amplifiers. A-D converter 1
Reference numeral 8 converts the level output from the microphone signal selector 17 into digital data. The CPU 20 executes a program previously written in the ROM 21 to control each unit. The RAM 22 is used as a working area for various processes described later. The CPU 20 outputs a selection signal to the microphone signal selector 17 via the I / O port 19 and reads the data of the AD converter 18. In addition, the key switch 31 via the I / O port 32
Read the state of. Video disk units 24 and 26
Is a device for reproducing a video disc on which a fire image is recorded in advance, and the CPU 20 gives control data via the RS-232C interface circuits 23 and 25. The AV signal selector 27 monitors the video signal of one of the video disc devices 24 and 26 for the monitor TV 1.
The audio signal is output to the amplifier circuit 28 while being output to 0. The amplifier circuit 28 drives the speaker 29 to output the sound of fire. CPU 20 is connected to A via I / O port 30
By outputting the control signal to the V signal selector 27, one of the video disc devices 24 and 26 is selected.

FIG. 4 is a block diagram showing a control circuit of the simulated fire extinguisher shown in FIG. 2 and an external circuit connected thereto. Fourth
In the figure, reference numeral 40 is a switch for detecting the operation of the lever 48 shown in FIG. Output a sound signal.
The amplifier circuit 42 amplifies the output signal of the voice synthesis control circuit 41 and drives the speaker 44. Reference numeral 43 is a volume for adjusting the volume. The speaker 44 is provided near the nozzle 50 shown in FIG.

The circuit indicated by 60 in the figure is a circuit provided in the simulated fire extinguisher, and the other circuits are external circuits to be connected as necessary. The amplifier circuit 45 is a microphone amplifier that amplifies the signal of the headset microphone 51, and 46 is a mixer circuit that mixes the output signal of the voice synthesis control circuit 41 and the output signal of the microphone amplifier 45. The amplifier circuit 52 amplifies the signal and drives the external speaker 53. Therefore, the speaker 53
From the headset microphone 51 with the sound of extinguishing agent.
The sound from is output. The headset microphone 51
Is used by fire extinguisher training instructors to explain how to extinguish a fire while operating a fire extinguisher.

The processing procedure of the CPU shown in FIG. 3 is shown in FIG. 5 and FIGS. 6 (A) to 6 (E), which will be described below.

FIG. 5 is a flowchart showing the overall processing procedure,
First, the operation of the ignition key is awaited (n1). If the ignition key is operated, the initial value 3 is set in S (n2). Here, S is an evaluation value of the fire extinguishing effect of the fire extinguisher, and the value is −
There are 7 ways of 3, -2, -1,0,1,2,3, and the negative value means the extinguishing direction and the positive value means the expanding direction of the fire. Therefore, if S = -3, rapid extinction, S = 3
If so, rapid expansion, and if S = 0, the current situation is maintained.

In step n3 of FIG. 5, the video disc is controlled according to the S value, and subsequently the levels of the six microphones 1 to 6 are stored. That is, first, the microphone number is M
N is set to 1 (n4), the level of that microphone is stored, and the level of each microphone is set to L1 to L6 until MN = 6.
(N5 → n6 → n7 → ...). After that, the position of the nozzle of the fire extinguisher in the vertical direction with respect to the display surface of the monitor TV is obtained from the level L1 of the microphone 1 and the level L4 of the microphone 4 (n8). This is obtained by the proportional distribution method based on the level difference or level ratio between the level L1 of the microphone 1 and the level L4 of the microphone 4. Then microphone 2
From the level L2 and the level L6 of the microphone 6, and the level L3 of the microphone 3 and the level L5 of the microphone 5, similarly, the horizontal position at which the nozzle of the fire extinguisher is directed with respect to the display surface of the monitor TV is obtained (n9). In this way, the fire extinguishing effect evaluation value S is calculated from the position in the display screen on which the nozzle of the fire extinguisher points (n10). Specifically, it is divided into values of -3 to 0 to 3 according to the distance difference from the optimum position to which the nozzle is directed.

FIGS. 6A to 6E are flowcharts showing the process of step n3 in FIG. 5 for each evaluation value S.
If S = 0, as shown in FIG. 6 (A), first, random numbers within a predetermined range are set in T1 and T2, respectively, and 2
Both of the video disk devices 24 and 26 perform normal reproduction for T1 time, and thereafter perform reverse reproduction for T2 time. Since the same video images are recorded in advance on each of the video discs set in the two video disc devices, from immediately after ignition until the fire gradually increases, select one of the video disc devices. By repeating the normal regeneration for T1 hours and the reverse regeneration for T2 hours, the fire display is performed while the fire scale is currently maintained.

If S = 1, as shown in FIG. 6 (B), the two video disk devices 24 and 26 are normally played back. As a result, an image of a slowly progressing fire is displayed. Incidentally, as in the case of S = 0, one of the video disc devices 24 and 26 is selected.

If S = 2 or 3, as shown in FIG. 6 (C), first of all, an instruction to start normal reproduction is made to the selected video disk device of either video disk device 24 or 26, and S = 2. In that case, the video disk device on the non-selected side is skipped to the time Tb ahead (n41 → n4).
2) or if S = 3, the non-selection side video disk device is skipped forward by Tc time (n41 → n4).
3). After that, the non-selected disk device is normally played and the elapse of Ta time is awaited (n44 → n45). Even at this time, the selected disk device continues the normal reproduction. Ta
When the time elapses, the selection / non-selection of the video disk device is reversed to switch to the image ahead of the time of Tb time or Tc time (n46). After that, the disc device that is inevitably selected, that is, the disc device on the delayed side is made to follow so as to reproduce the same screen as the selected video disc device (n47).

By the processing shown in FIG. 6 (C), the images are thinned out at regular time intervals, and the fire progresses faster than in the case of S = 1.

If S = -1, as shown in FIG. 6 (D), the two video disk devices 24 and 26 are reversely reproduced, contrary to the case of S = 1. As a result, the state where the fire is gradually weakened is displayed.

If S = -2 or -3, the processing shown in FIG. 6 (E) is performed, but this is performed by reversing the reproduction direction and skipping backward, contrary to the case of S = 2 or 3. . The overall control is the same as the procedure shown in FIG. 6 (C).

FIG. 7 shows the processing procedure of the voice synthesis control circuit provided in the simulated fire extinguisher. First, if the lever operation is performed, the timer is started, and the ejection noise of the extinguishant is output until the timer reaches a predetermined value. The time of this timer is set to approximately match the effective fire extinguishing time of the actual fire extinguisher. For example, it is generally 14 seconds for the powder ABC extinguishing type and 30 seconds for the chemical foam extinguishing type.

In addition, in order to clarify the location of the image that the fire extinguisher hits,
It is also possible to display the detected orientation of the simulated nozzle of the fire extinguisher on the screen as a white pin spot together with the fire image.

In the above embodiment, the simulated jet sound of the extinguishant is used as the means for detecting the position of the fire extinguisher in the nozzle directing direction with respect to the monitor TV, but as another method, infrared rays can be used. It is also possible to detect the position of the nozzle with respect to the monitor TV in the directional direction by providing an optical system and a light-receiving element on the nozzle side of the fire extinguisher and using the same method as for the light pen.

Further, in the embodiment, two video disk devices are used, and the output signal is appropriately switched to perform moving image and continuous skip reproduction, but it is possible to pick up a target frame in a very short time over a relatively wide range. If the available video disk device is used, the same control can be performed using one video disk device.

Further, it is possible to record several kinds of fire patterns in advance on a video disk or the like, and to appropriately select a fire image according to the evaluation of the fire extinguishing operation. In this case, it is also possible to simulate the spread of fire when the fire cannot be extinguished within the effective extinguishing time of the fire extinguisher.

(g) Effects of the Invention As described above, according to the present invention, fire extinguishing training can be performed using a video signal reproducing device such as a video disc device, a video display device such as a monitor TV, and a simulated fire extinguisher. Fire drills can be conducted safely and efficiently.

[Brief description of drawings]

FIG. 1 and FIG. 2 are external views of a monitor TV and a simulated fire extinguisher of a fire extinguisher training simulator according to an embodiment of the present invention. FIG. 3 is a block diagram of a monitor TV and a control unit connected thereto in the same apparatus, and FIG. 4 is a block diagram of a simulated fire extinguisher and a circuit connected thereto. FIGS. 5 and 6A to 6E are flowcharts showing the processing procedure of the CPU 20, and FIG. 7 is a flowchart showing the processing procedure of the voice synthesis control circuit 41. 1 to 6 ... Microphone, 10 ... Monitor TV (video display device), 24, 26 ... Video disk device (video signal reproducing device), 48 ... Lever, 50 ... Simulated nozzle, 60 ... Simulated fire extinguisher .

Claims (1)

[Claims] 1. A video signal reproducing device for reproducing a video signal of a fire whose scale is enlarged or reduced, a video display device for displaying an image by inputting an output signal of the video signal reproducing device, and a simulated nozzle, A simulated fire extinguisher capable of performing a simulated ejection operation of the extinguishant, a means for detecting the simulated ejection operation of the extinguishant, and a position on the image display device to which the simulated nozzle is directed during the simulated ejection operation of the extinguishant is directed to the nozzle. Means for detecting as a position, means for obtaining an evaluation value indicating a fire extinguishing effect from the nozzle orientation position, controlling the video signal reproducing device according to the evaluation value, and expanding or contracting the scale of the fire to be reproduced. A fire extinguisher training simulator consisting of and.