CN1035662C

CN1035662C - Self-sighting fire extinguisher

Info

Publication number: CN1035662C
Application number: CN93100197A
Authority: CN
Inventors: 阎德刚; 兰瑞兴; 林平
Original assignee: SIKAI AUTOMATION INST HAIDIAN DISTRICT BEIJING
Current assignee: SIKAI AUTOMATION INST HAIDIAN DISTRICT BEIJING
Priority date: 1993-01-12
Filing date: 1993-01-12
Publication date: 1997-08-20
Anticipated expiration: 2013-01-12
Also published as: CN1079918A

Abstract

The present invention aims to detect, aim and measure the range of a fire scene with simple structure, and extinguish fire. A device of the present invention is mainly characterized in that the device is provided with an aiming probe head moving along the orthogonal trajectory of warps and wefts, wherein the aiming probe head forms a ball clack-shaped visual field by a narrow slit so that when the aiming probe head rotates following an aiming gun, the space of a large half ball is scanned by the visual field; the positions and the range of the fire scene can be determined according to latitude and longitude appearing and subsiding in the fire scene scanned by the visual field; in the process of extinguishing the fire, a spout moves to spread a fire extinguishing agent to cover the whole fire scene.

Description

Self-sighting fire extinguisher

The present invention is a kind of device that can survey the scene of a fire, the automatic aiming scene of a fire and implement fire extinguishing.

The prior art relevant with the present invention: (1) Britain Great Britain patented technology 2173100 (UK Patent Application GB2173100) is from extinguishing device.Be characterized in: survey the appearance in the scene of a fire along warp-wise and broadwise scan protection space with two fire infrared probes, find to utilize two infrared probes to determine the particular location in the scene of a fire jointly behind the scene of a fire, drive the fire extinguishing of fire extinguishing mechanism for implementing.(2) Japan's special permission Room, flat 1-268575 Patent equipment, be characterized in that the fire probe detection is behind flame, the actuated camera structure absorbs a width of cloth fire scene image signal, through one section time-delay, absorb a width of cloth fire scene image signal again, judge with two width of cloth picture signals difference relatively and confirm flame and flame central position, send at last and drive the fire extinguishing signal, implement the fire extinguishing action.(1) device can not detect the scope in the scene of a fire, and the control to the intensity of a fire is disadvantageous like this.(2) device can be found the scene of a fire, seeks body of fire, measures scene of a fire scope, fire extinguishing, but (2) device need be equipped with infrared video camera, and complex structure costs an arm and a leg.

The purpose of this invention is to provide a kind of self-sighting fire extinguisher simple in structure.

Description of drawings:

Fig. 1 is the signal flow graph, 1 area of space fire probe, and 2 is input detection unit, and 3 is control module, and 4 is alarm mechanism, and 5 are fire extinguishing mechanism, and 6 are the aiming probe, and 7 is position feedback mechanism, and 8 are the aiming driving mechanism.

Fig. 2 is area of space fire sonde configuration and area of space distribution schematic diagram, and a1, a2, a3 are the fire probe, and 1,2,3 is three space exploration zones.

Fig. 3 is the pointing device structural representation, 1 aiming probe, 2 extinguishing chemical spouts, 3 aiming rifles, 4 motors, 5 optical code disks, 6 flute profile light idol, 7 reducing gears, 8 washers.

Fig. 4 is aiming probe and visual field schematic diagram.

Fig. 5 is the input detection unit schematic diagram, and 1 is the parallel interface chip, and 2 is gate circuit, and a is the pulse signal that space probe, aiming probe and feedback mechanism send, and b is the gate circuit output signal, and c is the reset signal of gate circuit.

Fig. 6 is the movement locus of extinguishing chemical spout in fire extinguishing procedure.

The course of work of this device: such as Fig. 1: by 1 space exploration zone, signal In 3 inputs 4, whether the signal comparison calculative determination of 4 pairs of inputs has flame The zone that signal and flame occur starts 8 and drives 7 along shortest path pair after confirming The accurate scene of a fire. 7 move in the process by 4,8 and 6 jointly finish to scene of a fire scope and The detection of body of fire is finished simultaneously the extinguishing chemical spout and is aimed at the scene of a fire, then by 4 start 5 implements fire extinguishing, and spout is back and forth, moves up and down in course of injection To reach the purpose that covers the full scene of a fire.

This installs the structure and the function thereof of each part.

1 area of space fire probe

This mechanism is popped one's head in to constitute by three fire the space is divided into 1,2,3, three zone, as shown in Figure 2 (a1, a2, a3 are the fire probe).Detectable signal is input to control module by the space fire probe of respective regions.

2 sighting device Fig. 3

(1) aiming probe (among Fig. 3 1)

This mechanism is by longitude aiming probe, and latitude aiming probe and catch constitute, and probe forms the visual field (as Fig. 4) of a similar ball clack shape by catch.

The signal that control module is popped one's head in according to fire is judged when fire is arranged, and starts sighting device, and the aiming probe is with aiming at the rifle motion, aiming rifle original position is arranged in No. 1 zone of Fig. 1, and when No. 3 the zone had flame to occur, the aiming rifle rotated counterclockwise, when otherwise No. 2 there was fire in the zone, the aiming probe clockwise rotated.By feedback mechanism control module is returned in the position feedback of longitude probe visual field appearing and subsiding in the scene of a fire at rotation process and determine scene of a fire broadwise width, and drive the center that the aiming rifle points to the broadwise width.Aiming at rifle then vertically rotates equally according to flame appearing and subsiding in the visual field of latitude probe and determines scene of a fire warp-wise width.Make the aiming rifle aim at body of fire at last.

(2) position feedback mechanism (among Fig. 3 5.6)

Position feedback mechanism constitutes by being installed on optical code disk on the drive motors axle (among Fig. 3 5) and flute profile light idol (among Fig. 3 6).Optical code disk and motor synchronous are rotated, and the optical signal between modulation flute profile light idol also converts electric impulse signal to, and control module carries out pulse signal accumulative total (just changeing add, reverse subtracts) to the aiming rifle and aims at rifle indication orientation with calculating when original position is rotated.

(3) aiming driving mechanism (among Fig. 3 4)

Driving mechanism is by warp-wise and broadwise drives two motors and reducing gear is configured for driving sighting device and spout moves along the warp-wise broadwise.

(4) aiming rifle (among Fig. 3 3)

It is the support of fire extinguishing spout and aiming probe

3 input detection unit Fig. 3

This unit is made up of gate circuit and parallel interface chip.A is the space probe among Fig. 3, the pulse signal that aiming probe and feedback mechanism send.Form the input port of b signal input parallel interface chip when a imports through gate circuit, control module reads in the back and makes the gate circuit zero clearing by interface chip c signal, for the input of next pulse signal is prepared.

4 extinguishing chemical spout and actuating mechanisms

Extinguishing chemical spout and sighting device are installed together, and sighting device is aimed at the scene of a fire, spout also respective aligned the scene of a fire, actuating mechanism is exactly a motor.After the aiming, actuating mechanism is opened valve and is implemented fire extinguishing.Spout moves back and forth by path shown in Figure 4 under the aiming drive motors drives in course of injection, so that extinguishing chemical covers the whole audience.

The present invention has the following advantages:

The aiming probe is with the motion of aiming rifle, by two mutually perpendicular narrow slits observation scenes of a fire and note the position of scene of a fire appearing and subsiding in the aiming probe visual field by control module, adopting said method substitutes in the prior art and utilizes infrared video camera to determine scene of a fire scope and center, makes simple in structure and cost has reduced.

Utilize uv-sensitive component as space fire probe and aiming probe, the signal that obtains is a pulse electrical signal, and this makes input detection unit only passable by gate circuit and parallel interface chipset achievement.

Claims

1. pop one's head in by the area of space fire for one, the aiming probe, the aiming driving mechanism, the aiming rifle, position feedback mechanism, input detection unit, control module, extinguishing chemical sprays actuating mechanism, the self-sighting fire extinguisher that alarm mechanism is formed, it is characterized in that the aiming probe is divided into longitude aiming probe and latitude aiming probe is fixed on the aiming rifle, broadwise rotation and warp-wise rotation with the aiming rifle scans respectively, the aiming rifle is the support of extinguishing medium spout simultaneously, the target that the aiming rifle is aimed at is exactly the target that spout is aimed at, the aiming probe end is the catch that contains narrow slit, the narrow slit of longitude aiming probe and latitude aiming probe spatially is a quadrature, when the aiming rifle is done the broadwise rotation, longitude aiming probe sees through the warp-wise narrow slit and scans monitor area, observation signal is delivered to control module through input detection unit, longitude station when position feedback mechanism will aim at the rotation of rifle broadwise is simultaneously delivered to control module through input detection unit, two longitude stations of aiming rifle were determined the longitude scope of flame when control module saw through when flare up fire occurring in the field of vision of narrow slit according to longitude aiming probe and flare up fire disappears, when the aiming rifle is done the warp-wise rotation, latitude aiming probe sees through the broadwise narrow slit and scans monitor area, observation signal is delivered to control module through input detection unit, Position Latitude when position feedback mechanism will aim at the rotation of rifle warp-wise is simultaneously delivered to control module through input detection unit, two Position Latitudes of aiming rifle were determined the latitude scope of flame when control module saw through when flare up fire occurring in the field of vision of narrow slit according to latitude aiming probe and flare up fire disappears, according to flame longitude scope and the latitude scope determined, controller makes the aiming rifle aim at the flame subsequent signal by the aiming driving mechanism and makes extinguishing chemical injection actuating mechanism startup spray fire extinguishing agent, and making the aiming rifle simultaneously is that the spout motion makes the medicament of injection cover fixed flame scope.