JPH0484974A - Fire fighting system - Google Patents

Abstract

PURPOSE:To surely execute the fire fighting without necessitating a complicated operation even in the case a monitoring area is wide by providing a fire fighting controller for controlling a mar discharge gun, based on control information set in accordance with a deciding area of a collation processing part. CONSTITUTION:A collation processing part 16 executes a collation of a fire origin detecting position (Xi, Yi) from a position detecting part 14 and table information of a divided area stored in advance in a map information table 18, and decides a divided area Ai in which the fire origin detecting position Xi, Yi is contained. Based on this decided divided area Ai, the corresponding information is read out by accessing a water discharge gun control table, and outputted to a fire fighting controller 20. Based on the control information corresponding to the divided area Ai from the collation processing part 16, the fire fighting controller 20 selects, for instance, a water discharge gun 22-1, controls a nozzle driving part 24-1 and turns the pointing direction of the water discharge gun 22-1 to the decided divided area Ai. Simultaneously, an actuating signal is outputted to a pump control panel 28, and a fire fighting pump 32 is operated by driving a motor 30, and fire fighting water from a water source water tank 34 is pressurized and supplied to the water discharge gun side.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fire extinguishing system for large space structures using a water cannon.

[Prior Art] As a conventional fire extinguishing system using a water cannon, a system is known in which a television camera monitors an area to be extinguished.

In this fire extinguishing system, a television camera mounted on top of a water cannon is rotated to capture the fire source in surveillance video, and the surveillance video shows whether the fire source is at a long distance or at a medium distance. Furthermore, it makes a rough judgment as to whether it is within close range, and starts and controls the water cannon based on the judgment result.

[Problem to be solved by the invention] However, such conventional fire extinguishing systems are effective when the monitoring area is relatively narrow, but when the monitoring area is wide, There was a risk that detailed fire extinguishing work would not be possible if a rough judgment was made.

The present invention has been made in view of such conventional problems, and aims to provide a fire extinguishing system using a water cannon that can reliably extinguish fires without requiring complicated operations even when the monitoring area is wide. purpose.

[Means for Solving the Problems] To achieve this object, the fire extinguishing system of the present invention is configured as follows. In addition, the reference numerals in the drawings of the embodiments are also indicated.

That is, the fire extinguishing system of the present invention includes a television camera 10 that monitors a surveillance area, a monitor device 12 that displays a surveillance video from the television camera 10, and a fire extinguishing system designated in the surveillance video displayed on the monitor device 12. A position detecting section 14 that detects a specific position; a matching processing section 16 that matches the detected position of the position detecting section 14 with divided areas of a monitoring area prepared in advance to determine the divided area to which the detected position belongs; and a matching process. The present invention is characterized in that it includes a fire extinguishing control device 20 that controls the water cannons 22-1 to 22-n based on control information set corresponding to the determination divided areas of the section 16.

[Function] According to the fire extinguishing system of the present invention having such a configuration, when a fire occurs within the monitoring area displayed on the monitor device, the location of the fire source can be captured using a light pen or the like. When the fire source position is detected, the monitoring area prepared in advance is compared with divided areas that have been divided into multiple areas, and the divided area that includes the fire source position is determined. The water cannon control information is prepared as table data, so by starting and controlling the water cannon based on this table data, fire extinguishing water can be automatically and efficiently sprayed into divided areas including fire sources plotted with a light pen. and extinguish the fire.

[Embodiment] FIG. 1 is a block diagram showing an embodiment of the present invention.

In FIG. 1, a television camera 10 is installed at a position where it can overlook the entire monitoring area of a large space structure to be extinguished, and outputs a video signal of the monitoring area. A video signal from the television camera 10 is displayed on a monitor device 12 as a surveillance video. The monitor device 12 is installed in a disaster prevention monitoring center or the like of a large space structure, and is constantly monitored by an operator. Light pen 1 for monitor device 12
5 is provided. Position detection unit 1
4, when a fire occurs, when the light pen 15 is pressed against the fire source position displayed on the monitor device 12 and a capture operation is performed, the coordinate position information (Xi
, Yj) is detected and output to the verification processing section 16.

A map information table 18 is provided for the verification processing unit 16, and the information stored in the map information table 18 includes, for example, the rectangular monitoring area 40 displayed on the monitor device 12 in FIG. As shown in the figure, the area 40 is divided into a plurality of divided areas by partitioning into a mesh, and the position information of each divided area is stored. The position information of this divided area is stored, for example, as the position coordinates of four vertices of each rectangular divided area in the XY coordinates of the monitor device 12.

The verification processing unit 16 uses the fire source position coordinates (Xi, Yi
) and the divided area information of the warning area from the map information table 18 to determine which divided area the fire source detection position (Xi, Yi) belongs to. For example, in the case of the monitor screen shown in Fig. 2, the fire source position (X
i, Yi) is determined to be included in the divided area Ai.

For example, as shown in FIG.
~The coordinates of D are A (Xi, Yl).

B (XI, Y2), C (X2.Y2) and D (X
2, Yl), the following conditions need to be satisfied in order for the coordinates (Xi, Yi) of the detection point P to be included in the divided area Ai.

X1-Xi≦0 Control information for controlling the selected water cannon to spray fire extinguishing water to the divided areas is stored as table information, and the verification processing unit 16 determines the fire source detection position (Xi, Yi).
When the divided area Ai that includes is determined, the water cannon control information is read out using the determined divided area At as an address and output to the fire extinguishing control device 20.

The fire extinguishing control device 20 selects one of the plurality of water cannons 22-1 to 22-n installed based on the water cannon control information obtained based on the divided area determination result of the verification processing unit 16. Performs startup control.

Each of the water cannons 22-1 to 22-n has a nozzle drive unit 2.
4-1 to 24-n and water discharge control units 26-1 to 26-n are provided, and a pump control panel 28, a motor 30, a fire pump 32, and a water source tank 34 are provided as common equipment.

The nozzle drive units 24-1 to 24-n are water cannons 22-1 to 22-2.
Rotate 2-n in the horizontal plane to control the direction of water discharge. Further, the water spray control units 26-1 to 26-n control the water spray distance by, for example, pressure control of the fire extinguishing water supplied under pressure from the fire pump 32. As for the water spray control of these water cannons 22-1 to 22-n, the present applicant has already proposed a technique disclosed in Japanese Patent Application Laid-open No. 63
The water discharge distance control described in Japanese Patent No.-57063 can be used. In addition to the control method proposed in JP-A No. 63-57063, in which the nozzle angle is fixed constant and the water spray distance is determined by controlling the water spray pressure, there are other methods, such as controlling the elevation angle of the water spray nozzle to change the water spray distance. Appropriate water discharge controls can be used.

The water cannon control information corresponding to the divided areas, which is stored in advance as table information in the map information table 18, can be obtained by, for example, performing a water spraying experiment so that fire extinguishing water reaches each divided area shown on the monitor screen in FIG. Register the control parameters obtained in the table data.

Figure 4 shows JP-A-63-5, which has already been proposed by the same applicant.
This shows the water discharge pattern in the water discharge distance control of No. 7063, and the water discharge patterns shown in the diagram are obtained for long distance, medium distance, and short distance.・The inner hatched area is the specified range compared to the outer water discharge range. This is the effective water spray range from which the amount of fire extinguishing water can be obtained, and the water cannon control parameters are experimentally determined so that the target divided area falls within this diagonally lined effective water spray range and are set as table information.

Next, extinguishing control according to the above embodiment will be explained.

First, in the steady monitoring state, the monitor device 1 shown in FIG.
As shown in screen No. 2, an image of the monitoring area 40 captured by the television camera 10 is displayed. Note that the divided areas shown in the monitoring area 40 are omitted for the sake of explanation, and the divided areas divided into a grid on the monitor screen are not actually displayed, and the divided areas shown in the monitoring area 40 obtained by the television camera 10 are not actually displayed. Only the video is displayed.

Next, when a fire occurs in the monitoring area, when the fire source 50 in the monitor image is captured by the light pen 15 as shown in FIG. The position coordinates (Xi, Yi) are detected and the verification processing unit 16
given to. The comparison processing unit 16 executes a comparison between the fire source detection position (Xi, Yi) from the position detection unit 14 and the table information of the divided area stored in advance in the map information table 18, and determines the fire source detection position (Xi, Yi). ) is determined. Based on the determined divided area At, the water cannon control table is accessed to read the corresponding control information and output to the fire extinguishing control device 20. The fire extinguishing control device 20 selects, for example, the water cannon 22-1 based on the control information corresponding to the divided area Ai from the verification processing unit 16, and controls the nozzle drive unit 24-1 to change the pointing direction of the water cannon 22-1. Aim at the determined divided area Ai. At the same time, a start signal is output to the pump control panel 28, the fire pump 32 is operated by driving the motor 30, and fire extinguishing water from the water source tank 34 is pressurized and supplied to the water cannon side.

When the fire pump 32 has successfully started, the fire extinguishing control device 2
0 outputs, for example, a pressure control signal to the water spray control unit 26-1, and fires extinguishing water toward the divided area Ai determined by controlling the pressure of fire extinguishing water for the selected water cannon 22-1.

In the embodiment shown in FIG. 1, a light pen 15 is used to detect the fire source position from the monitor screen of the monitor device 12, but a mouse 36 is provided as shown in FIG. The position of the fire source may be similarly detected by moving the cursor 38 on the monitor screen by operating the mouse 36, aligning the cursor 38 with the fire source 50, and pressing the set button on the mouse.

FIG. 5 is an explanatory diagram showing an example of the installation of a television camera and a water cannon in the fire extinguishing system of the present invention.

In FIG. 5, a general baseball stadium is taken as an example of a facility to be extinguished, and since the monitoring area is wide, two television cameras 10-1. 10-2, and the water cannon at 90 degrees to the TV camera installation position.
Four water cannons 22-1 to 22-4 are installed at the following positions. In this case, two television cameras 10-1.10
Water cannons 22-1 and 22-2 are installed in the area monitored by the TV camera 10-1, while water cannons 22-3 and 22-2 are installed in the area monitored by the TV camera 10-2.
．． 22-4, two system configurations are provided for each television camera and water cannon, excluding the common equipment of the fire extinguishing equipment shown in FIG.

Note that, for convenience of explanation, the screen of the monitor device 12 in FIG. 2 shows a state in which the warning area is divided into divided areas, and in reality only the video of the warning area 40 is displayed. In addition to the image of the caution area 40, the divided areas may be displayed in an overlapping manner as shown in the figure. By superimposing and displaying the divided areas on the surveillance video in this way, you only need to plot the divided areas that include the fire source 50 without directly plotting the fire source 50 using the light pen 15 or the mouse 36. Since the divided area is larger than 5o, operability can be improved.

In addition, in the above embodiment, a light pen or a mouse is used as a means of identifying the fire source location on the monitor screen, but in addition to that, a transparent switch board is placed on the front of the panel to identify the fire source location with a fingertip, etc. It is possible to use an appropriate means such as a touch panel that can specify a specific position on a monitor screen.

[Effects of the Invention] As explained above, according to the present invention, even when the monitoring area is wide, water cannons can be automatically controlled and reliably controlled by the simple operation of pointing out the fire source position on the monitor screen. This greatly improves the operability and extinguishing performance of fire extinguishing systems using television cameras.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram of an embodiment of the present invention; Fig. 2 is an explanatory diagram of the correspondence between divided areas and fire source positions for monitoring images of a monitor device of the present invention; Fig. 3 is a diagram showing the fire source detection position and divided areas of the present invention. FIG. 4 is an explanatory diagram of a water spray pattern according to distance by the water cannon of the present invention; FIG. 5 is an explanatory diagram showing an example of installation of the fire extinguishing system of the present invention. In the figure, 10.10-1.10-2: TV camera 12: Monitor device 14: Position detection section 15 Nilight pen 16: Verification processing section 18: Map information table 20: Fire extinguishing control device 22-1 to 22-4: Water spray Guns 24-1-24-n: Nozzle drive units 26-1-26-n: Water discharge control unit 28: Pump control panel 30: Motor 32: Fire pump 34: Water source tank 36: Mouse

Claims (1)

[Claims] 1. A television camera that monitors a surveillance area, a monitor device that displays the surveillance video from the television camera, and a position detection unit that detects a specified specific position in the surveillance video displayed on the monitor device. , a verification processing unit that determines the divisional area to which the detected position belongs by comparing the detected position of the position detection unit with divided areas of the monitoring area prepared in advance; A fire extinguishing system comprising: a fire extinguishing control device that controls a water cannon based on set control information.