EP2705881B1 - Method for controlling extinguishers - Google Patents

Description

The invention relates to a method for controlling extinguishing agent projectors with a controller for controlling the extinguishing agent and a position of a position that maps the real target positions of the extinguishing agent geometrically.

There are different sensor systems known that can detect a fire. Furthermore, there are various extinguishing systems that extinguish fires in industrial plants or larger rooms. Usually, a fire is detected and an extinguishing system is switched on, which contains a large amount of extinguishing agent, e.g. Water, spraying or flooding into the fire area and thus extinguishing the fire. Of utmost importance is the detection of a fire. This is done in particular by means of thermal differential detectors, flue gas fire detectors, smoke aspiration systems, flame detectors, infrared detectors (pyrometers) or infrared cameras.

In particular, sprinkler systems, considerably more powerful deluge systems and hand-controlled extinguishing monitors are used as extinguishing systems. The latter are also referred to as extinguishing cannons or as a water cannon.

Currently extinguishing media - also referred to as "fire monitors" - moved by means of mechanical or electronic control units to your extinguishing target position. Among other things, the following control units or operating systems are known:

1. Joystick control:

To move the fire monitor clockwise or counterclockwise about its axis of rotation, the joystick is usually moved to the left or right. To set the throw distance of the extinguishing agent, the joystick is moved forward or backward.

2. Feedback Control Control:

The position or position of the fire extinguisher always coincides with the position of the control handle. The prerequisite for this is a basic positioning of the control handle in cover with the position of the extinguishing agent launcher. In this case, the operator can always trace the position of the extinguishing device over the control handle.

A disadvantage of these solutions according to the prior art is that the alignment of the extinguishing agent launcher by means of the described control options always requires a visual contact with the target.

Once the controller is rotated with respect to the orientation of the fire monitor, controlling the fire monitor requires a lot of skill and spatial thinking on the part of the operator. Because these controls are mostly mobile are, for example by means of cable or wireless connection, there are therefore often problems with an acute deletion attack.

In addition, the direction of rotation of the extinguishing agent monitor (Item 1 in FIG. A) changes when the 0 ° and 180 ° axes are exceeded from their running direction. A left position of the joystick according to FIG. A leads from these angles to an alignment of the extinguishing monitor (Pos.2 of FIG. A) to the right, as soon as it is mounted standing or hanging.

From the DE 196 01 282 C1 is a pitcher control for mobile and stationary water / foam throwers known, with the launcher horizontally and vertically automatically controls without control lever on the fire or prevents the turning tube against located on the field outside obstacles such. As pipes, underpasses, goal posts, cables, branches, etc. abuts while driving or in use. In this case, the launcher on a laser removal thermometer infrared lens control device.

Furthermore, the WO 2004/052466 A1 a fire extinguishing system which operates with pre-formed frequency video images of the area to be controlled, which are compared to the current video monitored area and upon detection of a fire, the person monitoring the system points to the fire.

It is an object of the invention to provide a method for controlling extinguishing agent monitors of the type mentioned, which allow a comfortable and safe control of extinguishing media launchers.

It should be noted that the term "extinguishing agent monitor" is factually equivalent to the term "extinguisher thrower".

According to the invention, this object is achieved in that the data for targeting by entering the basic geometrical data, such as the launcher exit height to extinguishing object, the throw characteristics of the extinguishing agent and the pressure and the launcher exit speed of the extinguishing agent when leaving the extinguishing agent launcher on the basis of test deletions on site by mathematical calculation be calculated in a, connected to the position panel or integrated computing unit.

The direct destination position indication can be determined by means of an input medium on the position table, eg finger of the device operator, take place and allows in the event of fire direct alignment of the fire monitor to the source of fire. This saves time and enables faster extinguishment of the actual source of the fire.

By an extension of the position panel with a unit for intelligent evaluation of infrared / video live images for fire analysis by means of suitable hardware and software, an automatic fire extinction is possible. However, it is still possible at any time via the panel to provide automatic deletion by an operator, e.g. Firefighters, subjectively correct.

In particular, if the position tablet is designed as an intelligent tablet PC, the graphics surface of the position panel can be adapted to the geometric target areas of the fire monitor and / or the extinguishing geometry of the extinguishing agent launcher.

At the position tableau a computing unit is connected or integrated into this.

By means of a detection unit which is connected to the arithmetic unit, a live video image or a live thermal image is generated.

As a detection unit infrared and / or video cameras are provided.

Moreover, instead of the geometric target areas of the fire monitor, it is possible to display a real image, for example a photograph or thermography, of the object to be deleted on the input surface of the position controller.

Further, the positioner panel may be connected to a unit for intelligent evaluation of infrared / video live images for fire analysis by means of suitable hardware and software.

If an infrared camera is used as the detection unit, then this allows the operator of the extinguishing agent thrower to hit the fire well even if the room completely prevents visual contact with the operator due to smoke. Furthermore, this has the advantage that a fire can also be operated remotely, e.g. from a fire brigade control center, can be deleted. In addition, there is the advantage of monitoring the extinguishing success via the infrared camera.

If a unit that generates a live video image and / or a live infrared image is connected as the display of the object to be deleted on the input surface of the position panel, the target positions of the extinguishing agent can be detected by means of the unit.

By connecting other detection units, infrared and / or video cameras and other fire extinguishers with their controls to the computing unit, it is possible to have multiple fire extinguishers with only one position table to control. As a result, a larger object can be monitored for fire and actively deleted with only one position tablet. The position panel also offers the possibility to control the extinguishing success of a larger object.

According to a further development of the method according to the invention, the data for the target alignment of the extinguishing monitor connected to the position panel are mathematically calculated by a few short "test erasures" on site via the arithmetic unit for the complete extinguishing area, from the results of the achieved target positions of the extinguishing agent with the "erasure test In the fire extinguisher belonging to the extinguisher monitor, all possible positions achievable with the extinguisher are calculated.

If the position table is fed via the arithmetic unit with distance data from a distance sensor, the target parameters of the extinguishing device launcher can be adapted mathematically to changing position heights of the object to be deleted.

It is understood that the features mentioned above and those yet to be explained can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.

Fig. 1:

eine Einrichtung zum Ansteuern eines Löschmittelmonitors.

The idea underlying the invention will be described in more detail in the following description with reference to an embodiment which is illustrated in the drawing. It shows:

Fig. 1:

a device for controlling an extinguishing agent monitor.

The device initially consists of a position tablet 1, which is connected to a computing unit 2 for the intelligent evaluation of infrared / video images for fire analysis by means of suitable hardware and software. An extinguishing monitor 3 is connected via a launcher control 4 for the extinguishing agent 5 to the arithmetic unit 2. Furthermore, a distance sensor 6 and an infrared and / or video camera 7 are connected to the arithmetic unit 2. The extinguishing agent 5 is passed in case of fire to a target position 8 of a deletion object 9.

List of reference numbers

1

position panel

2

computer unit

3

Fire monitor / agent pitcher

4

Extinguishing grenade launchers control

5

extinguishing Media

6

distance sensor

7

Registration unit, infrared / video camera

8th

target position

9

deleted object

10

Hardware and software

Claims (8)

1. A method for controlling extinguishers (3) with a control unit (4) for controlling the extinguishers (3) and a position panel (1), which represents the actual positions of the extinguishing agent (5), characterised in that the geometrical target data are calculated by inputting the geometrical basic data, such as the extinguisher outlet height with respect to the object on fire (9), the throwing charateristics of the extinguisher (3) and the pressure as well as the outlet speed of the extinguishing agent (5) when exiting the extinguisher (3) on the basis of extinguishing tests on site through mathematic calculation in a computing unit (2) connected or integrated to the positon panel (1).
2. A method according to claim 1, characterised in that the data for correcting the target with the extinguishing monitor (3) connected to the position panel (1) are calculated mathematically through a few short extinguishing tests on site via the computing unit (2) for the complete extinguishing area, inasmuch as all the possible positions achievable with the extinguisher (3) are calculated using the results of the achieved target positions (8) by the extinguishing agent (5) which can be achieved in each extinguishing test to adjust the monitor (c) for the extinguisher.
3. The method of claim 1, characterised in that the position panel (1) consists mainly and preferably of pressure-sensitive touch pad or of a computer-based intelligent tablet-PC, wherein the geometric target areas of the monitor (3) are written or printed on the position panel (1), for example a pattern of the object on fire (9).
4. The method of claim 1, characterised in that the graphic surface of the position panel (1) matches the geometrical target areas of the monitor (3) and/or the extinguishing geometry of the extinguisher (3).
5. The method according to one of the claims 1 to 4, characterised in that a live video image or a live thermal image is generated by a sensing unit (7) which is connected to the computing unit (2).
6. The method of claim 5, characterised in that infrared and/or video cameras are provided as a sensing unit (7).
7. The method according to one of the claims 1 to 6, characterised in that, instead of the geometrical target areas of the monitor (3), an actual illustration, for example a photography or a thermography, of the object to be extinguished (9) is represented on the input face of the position panel (1).
8. The method according to one of the claims 1 to 7, characterised in that the position panel (1) is connected to the computing unit (2) for intelligent interpretation of infrared/video live images for fire analysis purposes using appropriate hardware and software (10).

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