CN102930685B - Security system for preventing fire and fire detecting method - Google Patents

Security system for preventing fire and fire detecting method Download PDF

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Publication number
CN102930685B
CN102930685B CN201210477873.2A CN201210477873A CN102930685B CN 102930685 B CN102930685 B CN 102930685B CN 201210477873 A CN201210477873 A CN 201210477873A CN 102930685 B CN102930685 B CN 102930685B
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fire
temperature
image
analysis chip
condition
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CN201210477873.2A
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CN102930685A (en
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黄永恒
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DONGGUAN LEIEN ELECTRONIC TECHNOLOGY Co Ltd
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DONGGUAN LEIEN ELECTRONIC TECHNOLOGY Co Ltd
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Abstract

The invention particularly relates to a security system for preventing a fire and a fire detecting method, belonging to the technical field of fire alarm. The security system provided by the invention comprises an image analyzing subsystem, a temperature analyzing subsystem and a fire analyzing chip; the image analyzing subsystem transmits image analysis result information to the fire analyzing chip; the temperature analyzing subsystem transmits the temperature change information to the fire analyzing chip; the fire analyzing chip operates to judge the fire by combining the image analyzing subsystem and the temperature analyzing subsystem; the security system also comprise an external fire transmission device; the fire analyzing chip transmits the fire information to the external fire transmission device; and the image analyzing system transmits the image information to the external fire transmission device at the same time. According to the invention, a mode of image and temperature combined analysis is adopted, so that the fire can be effectively monitored, and the probability for misinformation of the fire can be reduced.

Description

A kind of safety-protection system of fire preventing and fire detecting method
Technical field
The invention belongs to fire alarm technical field, specifically, relate to a kind of safety-protection system and fire detecting method of fire preventing.
Background technology
Along with the development of society, the attention degree of people to fire is increasing, because fire is once occur, and will along with the loss of material; Several big fire of current generation, are subject to tremendous economic damage all in various degree.In order to avoid the generation of fire, a lot of mechanism or company are all assembled with safety-protection system, existing safety-protection system has mostly only installed image pickup device, image pickup device by image transfer to security center, monitored by the monitoring personnel moment, but monitor area is limited, can not monitors completely, and rely on manpower monitoring, easily there is blind area; Some safety-protection systems have installed smoke sensing device, but the rate of false alarm of smoke sensing device is comparatively large, causes human and material resources to lose, and increase the cost taking precautions against fire.
Summary of the invention
The object of the invention is to solve the deficiencies in the prior art, provide a kind of safety-protection system of fire preventing, this safety-protection system effectively can monitor fire, and rate of false alarm is low, reduces fire prevention cost.
Another object of the present invention is to a kind of method providing detection, the method can detect fire accurately, reduces condition of a fire wrong report probability.
The technical solution used in the present invention is:
A safety-protection system for fire preventing, comprises
Image analysis subsystem; For analyzing image change situation in monitor area;
Temperature analysis subsystem; For analyzing in monitor area temperature variations everywhere;
Fire analysis chip; Image analysis result information is passed to fire analysis chip by image analysis subsystem, temperature information is passed to fire analysis chip by temperature analysis subsystem, and the information of fire analysis chip combining image analyzing subsystem and temperature analysis subsystem is carried out computing and judged the condition of a fire;
The external transmitting device of the condition of a fire, condition of a fire information is passed to the external transmitting device of the condition of a fire by fire analysis chip, and image information is synchronously passed to the external transmitting device of the condition of a fire by image analysis subsystem simultaneously.
The mode that the present invention adopts graphical analysis and temperature analysis to combine, makes fire analysis more accurate, reduces rate of false alarm, reduces fire extinguishing cost and fire prevention cost.
Wherein, described image analysis subsystem comprises image pickup device, image storage apparatus and graphical analysis chip, image pickup device is connected with image storage apparatus and graphical analysis chip signal respectively, and image storage apparatus is connected with graphical analysis chip signal.
Image pickup device, for gathering the image in monitor area, when analyzing image, first gathering the image of image as 10 days, 30 days of a period of time for monitor area and being stored in image storage apparatus, and contrast images as a setting.The picture signal of new recording first passes to graphical analysis chip, and graphical analysis chip is analyzed in conjunction with background image, analyzes situation of change that is red in the new image recorded, kermesinus image, carrys out the preliminary judgement condition of a fire with this.The condition of a fire information of analysis sends to fire analysis chip to be further processed by graphical analysis chip.
Wherein, described temperature analysis subsystem comprises thermal imaging system and temperature analysis chip, and thermal imaging system is connected with temperature analysis chip signal.
Thermal imaging system is for gathering the temperature variation of the temperature variations of object used in monitor area, particularly high temp objects, and temperature analysis chip judges to occur the condition of a fire according to the heat condition of high temp objects.
Wherein, described temperature analysis subsystem also comprises far infrared inductor, and far infrared inductor is connected with temperature analysis chip signal.
Far infrared inductor is set, infrared heat object can be sensed, make up the induction range of thermal imaging system.Make the wider of monitor temperature, improve the accuracy rate that the condition of a fire is reported to the police, reduce wrong report.
Wherein, the external transmitting device of the condition of a fire comprises video output interface and fire and to warn message output interface.
Security protection center is by being connected with video output interface and fire message output interface of warning, the video in monitor area can be watched in real time, when fire is warned, condition of a fire rank can be judged by viewing video, and the man power and material required for decision fire extinguishing, save fire extinguishing cost, optimize fire-fighting resource.
Wherein, the external transmitting device of the described condition of a fire comprises image compressing device, modulator and the wireless launcher that signal successively connects.
Vision signal is compressed by image compressing device, and the vision signal of compression is by modulator amplitude modulation and sent by wireless launcher; The electronic product that scene has wireless telecommunications all can receive, and the condition of a fire can be watched on-the-spot.
Wherein, the safety-protection system of described a kind of fire preventing also comprises warning device, and warning device is connected with fire analysis chip.
When there being the condition of a fire, fire analysis chip controls warning device work at once, informs that field staff evacuates at once and staff puts out a fire.
Wherein, IP chip is provided with in described image pickup device and/or thermal imaging system.
When image analysis subsystem transmits image analysis entity information to fire analysis chip, also the address at image place is passed to fire analysis chip, temperature analysis subsystem is also like this simultaneously; Therefore fire analysis chip carries out computing and judges when there is the condition of a fire, and condition of a fire address and condition of a fire information are together sent to the external transmitting device of the condition of a fire by fire analysis chip simultaneously.Therefore, security protection center, receiving the situation of the condition of a fire simultaneously, is also known and is occurred that the condition of a fire is at specified place, to fire fighting and rescue direction accurately, improves fire-fighting efficiency.
Wherein, described warning device comprises phonetic alarm.
By language alarm, can inform that there is the condition of a fire field staff there, make unrelated person obtain effectively withdrawing rapidly, staff can rush for scene at once.Certainly voice guard and light crossing-signal can also be set according to actual conditions.
A kind of fire detecting method, comprises the following steps:
A) video image in Real-time Collection monitor area;
B) the preliminary condition of a fire judges; From the series of frames video image collected, extract flame characteristic parameter, characteristic matching and statistical study are carried out to flame characteristic parameter, calculate condition of a fire occurrence probability f (t) in monitor area;
C) temperature distribution image in Real-time Collection monitor area;
D) temperature analysis; Extracting temperature characteristic parameter from the temperature distribution image in the monitor area collected, carries out characteristic matching and statistical study to temperature profile parameter, calculates condition of a fire occurrence probability F (t) in monitor area;
E) fire judges; As f (t) >=T, F (t) >=T: judge information and temperature analysis information in conjunction with the preliminary condition of a fire, analysis meter calculates the condition of a fire occurrence probability in monitor area.
Wherein, in step b) in, flame characteristic parameter comprises color parameter, location parameter, area parameters; Temperature profile parameter in step d) comprises location parameter and temperature parameter.
Wherein, in step e), when fire judges, comprise the following steps:
1), when the location parameter of flame characteristic parameter and temperature profile parameter position inconsistent time, occurrence index is F (t); 2), when the location parameter of flame characteristic parameter is consistent with temperature profile parameter position, occurrence index is r F (t)+(1-r) f (t); Wherein, r represents adjustment factor.
The beneficial effect that the present invention obtains is: the present invention adopts the mode of image and temperature binding analysis, effectively can monitor the condition of a fire, and reduces the probability of the wrong report condition of a fire.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Reference numeral is:
1---temperature analysis subsystem 2---image analysis subsystem
3---fire analysis chip 4---warning device
5---the external transmitting device 11 of the condition of a fire---temperature analysis chip
12---thermal imaging system 13---far infrared inductor
21---graphical analysis chip 22---image storage apparatus
23---image pickup device.
Embodiment
Below in conjunction with accompanying drawing 1 and embodiment, the present invention is described further.
Embodiment 1: see Fig. 1.
A safety-protection system for fire preventing, comprises image analysis subsystem 2, temperature analysis subsystem 1 and fire analysis chip 3; Image analysis result information is passed to fire analysis chip 3 by image analysis subsystem 2, temperature information is passed to fire analysis chip 3 by temperature analysis subsystem 1, and the information of fire analysis chip 3 combining image analyzing subsystem 2 and temperature analysis subsystem 1 is carried out computing and judged the condition of a fire; Safety-protection system also comprises the external transmitting device 5 of the condition of a fire, and condition of a fire information is passed to the external transmitting device 5 of the condition of a fire by fire analysis chip 3, and image information is synchronously passed to the external transmitting device 5 of the condition of a fire by image analysis subsystem 2 simultaneously.Wherein, described image analysis subsystem 2 comprises image pickup device 23, image storage apparatus 22 and graphical analysis chip 21, image pickup device 23 is connected with image storage apparatus 22 and graphical analysis chip 21 signal respectively, and image storage apparatus 22 is connected with graphical analysis chip 21 signal.Described temperature analysis subsystem 1 comprises thermal imaging system 12 and temperature analysis chip 11, and thermal imaging system 12 is connected with temperature analysis chip 11 signal.Described temperature analysis subsystem 1 also comprises far infrared inductor 13, and far infrared inductor 13 is connected with temperature analysis chip 11 signal.
When the present invention specifically implements: monitored area is monitored, image pickup device 23 adopts low illuminance CCD camera, first 10 days (not having fire in these 10 days) is carried out making a video recording continuously in monitored area, this shooting information of 10 days to be stored in image storage apparatus 22 and information as a setting, then image pickup device 23 starts shoot and monitor, graphical analysis chip 21 compares for the image newly taken the photograph and background information, and find out flame characteristic parameter, wherein flame characteristic parameter mainly comprises color characteristic, position feature, area features etc.; Graphical analysis chip 21 carries out functional operation by extracting flame characteristic parameter in continuous print image, and calculates fire occurrence probability f (t); As f (t) >=T, T is setting predetermined value, as T=0.1 to 0.3, graphical analysis chip 21 by flame characteristic Parameter transfer to fire analysis chip 3, if during f (t) <T, then graphical analysis chip 21 does not transmit flame characteristic parameter.Thermal imaging system 12 adopts CCD infrared pick-up camera lens simultaneously, temperature profile parameter in monitor area is sampled, wherein temperature profile parameter comprises the correlation parameter such as location parameter, temperature parameter, temperature analysis chip 11 calculates condition of a fire occurrence probability F (t), as F (t) >=T, temperature analysis chip 11 by temperature profile Parameter transfer to fire analysis chip 3, if during F (t) <T, then temperature analysis chip 11 does not transmit temperature profile parameter.Fire analysis chip 3 only starts calculation process and analyzes the condition of a fire, 1 when receiving flame characteristic parameter and temperature profile parameter), when the location parameter of flame characteristic parameter and temperature profile parameter position inconsistent time, occurrence index is F (t); 2), when the location parameter of flame characteristic parameter is consistent with temperature profile parameter position, occurrence index is M (t)=r F (t)+(1-r) f (t); Wherein, r represents adjustment factor, selects, as r=0.3 according to actual conditions.Different warning signal is sent according to M (t) value, as as M (t) >N1, fire disaster analyzing chip directly sends one-level fire alarm information, indicate that big fire occurs, as N1>=M (t) >=N2, fire disaster analyzing chip sends multiple alarm information, represents that the condition of a fire is little, has spreading trend; As M (t) <N2, fire disaster analyzing chip sends three grades of condition of a fire information, indicates the condition of a fire symptom of a trend, and process is lower just passable a little.N1, N2 set its predetermined value, as N1=0.6, N2=0.3 according to actual conditions; Fire disaster analyzing chip is while externally transmitting fire alarm by the external transmitting device 5 of the condition of a fire, the image/video of Real-time Collection is externally transmitted by the external transmitting device 5 of the condition of a fire by image analysis subsystem 2, security protection center judges fire extinguishing personnel in conjunction with condition of a fire rank and image/video, make human and material resources obtain high-quality collocation, use manpower and material resources sparingly.
Conveniently signal transmission, the external transmitting device 5 of the condition of a fire is provided with video output interface and fire and warns message output interface.Security protection center by being connected with video output interface and fire message output interface of warning, can obtain condition of a fire information in time.
In order to allow field staff and related personnel also can obtain condition of a fire information in time, the external transmitting device 5 of the described condition of a fire comprises image compressing device, modulator and the wireless launcher that signal successively connects.Vision signal is compressed by image compressing device, and the vision signal of compression is by modulator amplitude modulation and sent by wireless launcher; The electronic product that scene has wireless telecommunications all can receive, and the condition of a fire can be watched on-the-spot, and wherein, wireless launcher can be chosen as WIFI transmitter.Also be provided with warning device 4 in addition, warning device 4 is connected with fire analysis chip 3.When there being the condition of a fire, fire analysis chip 3 controls warning device 4 at once and works, and informs that field staff evacuates at once and staff puts out a fire.
Further, in order to determine condition of a fire scene, and condition of a fire situation, be provided with IP chip in described image pickup device 23 and/or thermal imaging system 12, described warning device 4 comprises phonetic alarm.
Once there be the condition of a fire to occur, fire analysis chip 3 can calculate condition of a fire occurrence probability everywhere, pass through language alarm, this field staff's where is it condition of a fire can be informed, condition of a fire What gives, what kind of needs process, and make unrelated person obtain effectively withdrawing rapidly, staff can rush for scene at once simultaneously.As equivalent variations, warning device 4 can be voice guard or light crossing-signal and its combine.
Embodiment 2: a kind of fire detecting method, comprises the following steps:
A) video image in Real-time Collection monitor area and the temperature distribution image gathered in monitor area;
This step can obtain a series of video image and temperature distribution image, as calculating basis.
B) the preliminary condition of a fire judges; From the series of frames video image collected, extract flame characteristic parameter, characteristic matching and statistical study are carried out to flame characteristic parameter, calculate condition of a fire occurrence probability f (t) in monitor area;
C) temperature analysis; Extracting temperature characteristic parameter from the temperature distribution image in the monitor area collected, carries out characteristic matching and statistical study to temperature profile parameter, calculates condition of a fire occurrence probability F (t) in monitor area;
D) fire judges; As f (t) >=T, F (t) >=T: judge information and temperature analysis information in conjunction with the preliminary condition of a fire, analysis meter calculates the condition of a fire occurrence probability in monitor area; Wherein, T is setting predetermined value.
Wherein, in step b) in, flame characteristic parameter comprises color parameter, location parameter, area parameters; Temperature profile parameter in step d) comprises location parameter and temperature parameter.
Wherein, in step d), when fire judges, comprise the following steps:
1), when the location parameter of flame characteristic parameter and temperature profile parameter position inconsistent time, occurrence index is F (t);
2), when the location parameter of flame characteristic parameter is consistent with temperature profile parameter position, occurrence index is r F (t)+(1-r) f (t); Wherein, r represents adjustment factor.
Fire detecting method is specifically implemented identical with embodiment 1.
Below be only the preferred embodiment of the application, equivalent technical solutions on this basis still falls into application protection domain.

Claims (7)

1. a safety-protection system for fire preventing, is characterized in that: it comprises
Image analysis subsystem, for analyzing image change situation in monitor area; It comprises image pickup device, image storage apparatus and graphical analysis chip, and image pickup device is connected with image storage apparatus and graphical analysis chip signal respectively, and image storage apparatus is connected with graphical analysis chip signal;
Temperature analysis subsystem, for analyzing in monitor area temperature variations everywhere;
Fire analysis chip, image analysis result information is passed to fire analysis chip by image analysis subsystem, temperature information is passed to fire analysis chip by temperature analysis subsystem, and the information of fire analysis chip combining image analyzing subsystem and temperature analysis subsystem is carried out computing and judged the condition of a fire;
The external transmitting device of the condition of a fire, condition of a fire information is passed to the external transmitting device of the condition of a fire by fire analysis chip, and image information is synchronously passed to the external transmitting device of the condition of a fire by image analysis subsystem simultaneously;
Described temperature analysis subsystem comprises thermal imaging system and temperature analysis chip, and thermal imaging system is connected with temperature analysis chip signal;
Graphical analysis chip calculates fire occurrence probability f (t); As f (t) >=T, T for setting threshold value, graphical analysis chip by flame characteristic Parameter transfer to fire analysis chip; During f (t) <T, then graphical analysis chip does not transmit flame characteristic parameter;
Temperature analysis chip calculates condition of a fire occurrence probability F (t), as F (t) >=T, temperature analysis chip by temperature profile Parameter transfer to fire analysis chip, if during F (t) <T, then temperature analysis chip does not transmit temperature profile parameter; Fire analysis chip only starts calculation process and analyzes the condition of a fire when receiving flame characteristic parameter and temperature profile parameter.
2. the safety-protection system of a kind of fire preventing according to claim 1, is characterized in that: described temperature analysis subsystem also comprises far infrared inductor, and far infrared inductor is connected with temperature analysis chip signal.
3. the safety-protection system of a kind of fire preventing according to claim 2, is characterized in that: the external transmitting device of the condition of a fire comprises video output interface and fire and to warn message output interface; The external transmitting device of the described condition of a fire comprises image compressing device, modulator and the wireless launcher that signal successively connects.
4. the safety-protection system of a kind of fire preventing according to claim 3, is characterized in that: the safety-protection system of described a kind of fire preventing also comprises warning device, and warning device is connected with fire analysis chip.
5. the safety-protection system of a kind of fire preventing according to claim 4, is characterized in that: be provided with IP chip in described image pickup device and/or thermal imaging system, described warning device comprises phonetic alarm.
6. a fire detecting method, is characterized in that: comprise the following steps:
A) video image in Real-time Collection monitor area and the temperature distribution image gathered in monitor area;
B) the preliminary condition of a fire judges, extracts flame characteristic parameter, carries out characteristic matching and statistical study to flame characteristic parameter, calculate fire occurrence probability f (t) in monitor area from the series of frames video image collected;
C) temperature analysis, Extracting temperature characteristic parameter from the temperature distribution image in the monitor area collected, carries out characteristic matching and statistical study to temperature profile parameter, calculates condition of a fire occurrence probability F (t) in monitor area;
D) fire judges, as f (t) >=T, during F (t) >=T, T is setting threshold value: judge information and temperature analysis information in conjunction with the preliminary condition of a fire, analysis meter calculates the occurrence index in monitor area;
Wherein, temperature profile parameter comprises location parameter and temperature parameter;
In step d), when fire judges, comprise the following steps:
1), when the location parameter of flame characteristic parameter and temperature profile parameter position inconsistent time, occurrence index is M (t)=F (t);
2), when the location parameter of flame characteristic parameter is consistent with temperature profile parameter position, occurrence index is M (t)=r F (t)+(1-r) f (t); Wherein, r represents adjustment factor.
7. a kind of fire detecting method according to claim 6, is characterized in that: in step b) in, flame characteristic parameter comprises color parameter, location parameter, area parameters.
CN201210477873.2A 2012-11-22 2012-11-22 Security system for preventing fire and fire detecting method Expired - Fee Related CN102930685B (en)

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CN102930686A (en) * 2012-11-29 2013-02-13 东莞市雷恩电子科技有限公司 Security system for fire prevention and fire detection method
CN104318705A (en) * 2014-10-31 2015-01-28 无锡悟莘科技有限公司 Warehouse fire protection monitoring method
KR101741107B1 (en) * 2015-12-14 2017-06-15 주식회사 앤다스 Apparatus and method for monitoring fire by using cctv
CN106887108A (en) * 2015-12-16 2017-06-23 天维尔信息科技股份有限公司 Early warning interlock method and system based on thermal imaging
CN107678383A (en) * 2017-09-25 2018-02-09 南京律智诚专利技术开发有限公司 Disaster prevention system based on Property Management System

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JP2002269651A (en) * 2001-03-13 2002-09-20 Shin Kurushima Dockyard Co Ltd Fire detection system in ship and local fire extinguishing system in ship engine room
CN101334924B (en) * 2007-06-29 2011-06-01 丁国锋 Fire hazard probe system and its fire hazard detection method
CN101352604B (en) * 2008-09-12 2012-01-11 郭建国 Networked fire-fighting extinguishment control system
CN101833838B (en) * 2010-05-27 2012-06-06 王巍 Large-range fire disaster analyzing and early warning system
JP2012118698A (en) * 2010-11-30 2012-06-21 Fuji Heavy Ind Ltd Image processing system

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