CN104867265B - Camera device, fire detection alarm system and method - Google Patents
Camera device, fire detection alarm system and method Download PDFInfo
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- CN104867265B CN104867265B CN201510193319.5A CN201510193319A CN104867265B CN 104867265 B CN104867265 B CN 104867265B CN 201510193319 A CN201510193319 A CN 201510193319A CN 104867265 B CN104867265 B CN 104867265B
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- 238000001514 detection method Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012544 monitoring process Methods 0.000 claims abstract description 142
- 238000004891 communication Methods 0.000 claims abstract description 47
- 230000008859 change Effects 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 8
- 230000007123 defense Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
- G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
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- Signal Processing (AREA)
- Fire-Detection Mechanisms (AREA)
- Alarm Systems (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The invention discloses a kind of camera device, camera device includes camera, control chip, infrared fileter and communication module, infrared fileter is movably set in the incident side of camera, when control chip receives visible light shooting instruction, infrared fileter is controlled to deviate the light inlet of camera incident side, camera gathers visible images, and whether control chip is used to judge monitoring area in default fire risk state；When monitoring area is in default fire risk state, infrared fileter is blocked to the light inlet of camera incident side；Whether control chip judges monitoring area in default fire condition, when monitoring area is in default fire condition according to the infrared light image of reception.The invention also discloses a kind of fire detection alarm system and method.The integrated visible images collection of the present invention and infrared image acquisition reduce camera device and arrange the cost of the fire detection alarm system based on the camera device in one.
Description
Technical field
The present invention relates to fire detection alarm technique field, more particularly to a kind of camera device, fire detection alarm system
And method.
Background technology
At present, the fire detection system of in the market generally has three kinds, the first be using traditional fire sensor (such as
Temperature-sensitive inductor, sense cigarette inductor, gas sensor) fire detection is carried out, but since temperature-sensitive, sense smoke and gas body inductor are to connect
Touch inductor, its principle are caused physical parameter (such as concentration, temperature) and these physics ginseng in detection fire process
Several variable quantities, is mainly used for indoor small-scale fire detection, and the side of fire detection is carried out using traditional fire sensor
Method have the shortcomings that space applicability is limited, information reliability is poor, easily by external interference；Be for second using infrared inductor into
Row fire detection, but infrared inductor is expensive, limits its use scope；The third is using image processing techniques as base
Plinth, carries out fire detection by video inductor (such as camera), the visible images gathered is handled, are analyzed,
To achieve the purpose that fire detection, but such a detection easily occurs having class in wrong identification, such as the visible images of collection
Like the object (dynamic flame mark) of flame, fire identification preparation rate is not high.
The content of the invention
It is a primary object of the present invention to provide a kind of camera device, fire detection alarm system and method, it is intended to solve
Limited, expensive, fire identification rate the is not high technical problem of existing fire detection system space applicability.
To achieve the above object, a kind of camera device provided in an embodiment of the present invention, the camera device include control core
Piece and camera, infrared fileter and communication module are connected with the control chip respectively, the infrared fileter activity is set
The incident side of the camera is placed in,
When the control chip receives visible light shooting signal, the control chip controls the infrared fileter inclined
From the light inlet of the camera incident side, so that the camera gathers visible images and sends out the visible images of collection
Send to the control chip；The control chip judges the camera device according to the image parameter of the visible images of reception
Monitoring area whether in default fire risk state；
When the control chip judges that the monitoring area is in default fire risk state, the control chip control
The communication module sends the first fire alarm information to the monitoring server of peripheral hardware, and control the infrared fileter to rotate with
The light inlet of the camera incident side is blocked, so that the camera gathers infrared light image and sends to the control core
Piece；
The control chip judges the monitoring area of the camera device according to the image parameter of the infrared light image of reception
Whether in default fire condition, when the control chip judges that the monitoring area is in default fire condition, institute is controlled
State communication module and send the second fire alarm information to the monitoring server.
Preferably, the camera device further includes locating module, judges that the monitoring area is in the control chip
When default fire risk state and default fire condition, the locating module is controlled to be positioned, and receive the locating module
Position obtained positional information；The control chip controls the communication module to send the positional information of the monitoring area of reception
To the monitoring server.
Preferably, the communication module includes internet communication unit and/or mobile comm unit, in the control chip
When judging that the monitoring area is in default fire risk state and default fire condition, the control chip controls the interconnection
Network Communication unit and Internet connectivity, and/or the mobile comm unit are connected with mobile radio communication, and the communication module
First fire alarm information and the second fire alarm information are sent to default fire calls center or remote terminal.
In addition, to achieve the above object, the present invention also provides a kind of fire detection alarm system, the fire detection alarm
System includes above-mentioned camera device, and monitoring server,
When the monitoring server receives first fire alarm information, to default fire calls center or remote
Journey terminal sends short message prompt；
When the monitoring server receives second fire alarm information, to default fire calls center or remote
Journey terminal sends SMS alarm and audio alert.
Preferably, when the monitoring server receive that the communication module sends in default fire risk state and
During the positional information of the monitoring area of default fire condition, then the monitoring is sent to default fire calls center or remote terminal
The positional information in region.
In addition, to achieve the above object, the present invention also provides a kind of fire detection alarm based on above-mentioned camera device
Method, the fire detection alarm method include：
Visible images in the default monitoring area of collection；
According to the image parameter of the visible images of collection, identify the default monitoring area whether in default fire wind
Dangerous state；
When the default monitoring area is in default fire risk state, the position for adjusting infrared fileter is taken the photograph with blocking
The first fire alarm information is sent as the light inlet of head incident side, and to default monitoring server；
Gather the infrared light image in the default monitoring area；
According to the image parameter of the infrared light image of collection, identify the default monitoring area whether in default fire shape
State；
When the default monitoring area is in default fire condition, the second fire is sent to the default monitoring server
Calamity warning message.
Preferably, the image parameter of the visible images according to collection and default Fire, described in identification
Whether default monitoring area includes in the step of default fire risk state：
The image parameter of the visible images of collection is analyzed and processed, obtains fire probability；
Judge whether the fire probability is more than predetermined threshold value, when the fire probability is more than predetermined threshold value
When, identify that the default monitoring area is in default fire risk state.
Preferably, the image parameter of the infrared light image according to collection and default infrared measurement of temperature algorithm, described in identification
Whether default monitoring area includes in the step of default fire condition：
The image parameter of the infrared light image of collection is analyzed and processed, obtains flame temperature；
Judge whether the flame temperature is more than preset temperature value, when the flame temperature is more than preset temperature value, know
Not described default monitoring area is in default fire risk state.
Preferably, the image parameter of the visible images includes：The area change feature of flame and/or smog, brightness
Feature, change in shape feature and color characteristic.
Preferably, the image parameter of the infrared light image includes：Change in shape feature, color characteristic and the area of flame
Variation characteristic.
The present invention is received by being equipped with camera device for imaging and gathering the camera of image in control chip
When visible light shooting instructs, control infrared fileter deviates the light inlet of camera incident side, camera collection visible images
And the visible images collected are sent to control chip, control chip the image parameter of the visible images of reception is carried out
Whether analysis, processing, judge the monitoring area of camera device in default fire risk state, when control chip judges shooting dress
When the monitoring area put is in default fire risk state, control chip controls communication module to be sent to the monitoring server of peripheral hardware
First fire alarm information controls infrared fileter to rotate to block to remind monitoring server to pay close attention to monitoring area situation
The light inlet of camera incident side, so that camera gathers infrared light image and sends to control chip；Control chip is to receiving
The image parameter of infrared light image analyzed, handled, be in default fire condition in the monitoring area for judging camera device
When, control communication module sends the second fire alarm information to report fire behavior to monitoring server, by rotating infrared fileter
Switch to realize camera device between visible light shooting pattern and infrared shooting pattern, so as to fulfill visible ray and infrared light
Secondary detection and judgement, improve the accuracy rate of fire detection；Meanwhile integrated visible images collection and infrared image acquisition in
One, without two camera devices, and is based on existing safety defense monitoring system, i.e. security protection and fire detection alarm system one, greatly
The big cost for reducing camera device and arranging the fire detection alarm system based on the camera device.
Brief description of the drawings
Fig. 1 is the structure diagram of camera device first embodiment of the present invention；
Fig. 2 is the structure diagram of fire detection alarm system first embodiment of the present invention；
Fig. 3 is the structure diagram of camera device second embodiment of the present invention；
Fig. 4 is the structure diagram of fire detection alarm system second embodiment of the present invention；
Fig. 5 is the flow diagram of one embodiment of fire detection alarm method of the present invention；
Fig. 6 is described pre- according to the image parameter of the visible images of collection and default Fire, identification in Fig. 5
If the refinement flow diagram for the step of whether monitoring area is in default fire risk state；
Fig. 7 is described pre- according to the image parameter of the infrared light image of collection and default infrared measurement of temperature algorithm, identification in Fig. 5
If the refinement flow diagram for the step of whether monitoring area is in default fire condition.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of camera device, and referring to Figures 1 and 2, in the present embodiment, the camera device 1 includes taking the photograph
As first 10, control chip 11, infrared fileter 12 and communication module 13, the infrared fileter 12 are movably set in the shooting
First 10 incident side A,
Receiving visible light shooting instruction in the control chip 11, (visible light shooting instruction is inputted or taken the photograph for user
As the start default instruction of device) when, the control chip 11 controls the infrared fileter 12 to deviate the camera 10 to enter
The light inlet (not shown) of light side A, so that the camera 10 gathers visible images and by the visible images of collection
Send to the control chip 11, the control chip 11 and be used for the image parameter of the visible images according to reception, judge institute
The monitoring area of camera device 1 is stated whether in default fire risk state；
When the control chip 11 judges that the monitoring area is in default fire risk state, the control chip 11
Control the communication module 13 to send the first fire alarm information to the monitoring server 2 of peripheral hardware, and control the infrared filtering
Piece 12 is rotated to block the light inlet of the 10 incident side A of camera, so that the collection infrared light image of the camera 10 is concurrent
Send to the control chip 11；
The control chip 11 judges the monitoring of the camera device 1 according to the image parameter of the infrared light image of reception
Whether region is in default fire condition, when the control chip 11 judges that the monitoring area is in default fire condition,
The communication module 13 is controlled to send the second fire alarm information to the monitoring server 2.
In the present embodiment, it is equipped with camera device 1 and is used to image and gather the camera 10 of image, in the control core
(since camera device proposed by the invention is based on safety defense monitoring system, control when piece 11 receives visible light shooting instruction
Coremaking piece is given tacit consent to when filming apparatus is started shooting receives visible light shooting instruction, i.e., described filming apparatus is in visible light shooting pattern
It is in the state of safety defense monitoring system normal work), control chip control infrared fileter 12 deviates the camera 10
The light inlet of incident side A, camera 10 gather visible images and send the visible images collected to control chip 11,
Control chip 11 is analyzed the image parameter of the visible images of reception, is handled, such as is primarily determined that according to brightness of image
Flame region, then the Luminance Distribution situation (brightness is gradually reduced from inside to outside) to flame region, shape facility are (relative to ground
Face, the area of flame close to above ground portion to away from above ground portion from being gradually reduced) etc., judge the monitoring of the camera device 1
Whether region is in default fire risk state, when the monitoring area of the camera device 1 is in default fire risk state,
The control chip 11 controls the communication module 13 to send the first fire alarm information to the monitoring server 2 of peripheral hardware to remind
Monitoring server 2 pays close attention to monitoring area situation, and controls the infrared fileter 12 to rotate and entered with blocking the camera 10
The light inlet of light side A, so that the camera 10 gathers infrared light image and sends to the control chip 11；The control core
Piece 11 is analyzed the infrared light image of reception, is handled, such as draws doubtful fire in monitoring area according to infrared measurement of temperature algorithm
The temperature of the image of flame, if the temperature of the image of the doubtful flame is more than predetermined threshold value, judge it is on fire in monitoring area, i.e.,
When judging that the monitoring area of the camera device 1 is in default fire condition, the communication module 13 is controlled to be taken to the monitoring
The second fire alarm information of transmission of device 2 be engaged in report fire behavior, realizes camera device visible by rotating infrared fileter 12
Switch between light screening-mode and infrared shooting pattern, so as to fulfill the secondary detection and judgement of visible ray and infrared light, improve
The accuracy rate of fire detection；Meanwhile integrated visible images collection and infrared image acquisition are filled in one without two shootings
Put, and be based on existing safety defense monitoring system, i.e. security protection and fire detection alarm system one, greatly reduce 1 He of camera device
Arrange the cost of the fire detection alarm system based on the camera device.
Further, with reference to Fig. 3 and Fig. 4, the camera device 1 further includes locating module 14, in the control chip 11
When judging that the monitoring area is in default fire risk state and default fire condition, the locating module 14 is controlled by described in
The positional information of monitoring area, which is sent to the communication module 13, the communication module 13, believes the position of the monitoring area of reception
Breath is sent to the monitoring server 2.
In the present embodiment, locating module 14 is added in camera device 1, judges the monitoring in the control chip 11
When region is in default fire risk state and default fire condition, the locating module 14 is controlled by the position of the monitoring area
Confidence breath, which is sent to the communication module 13, the communication module 13, sends the positional information of the monitoring area of reception to described
Monitoring server 2, in order to which the place of fire occurs for 2 fast positioning of monitoring server, works easy to follow-up fire attack.
Preferably, the camera device 1 further includes study memory module, and study memory module is used in the control chip
11 generation false alarms or when failing to report alert, learn and store the visible images of the monitoring area and the image of infrared light image
Parameter.In this way, camera device and the fire detection alarm system based on the camera device possess learning ability, so as to not
Renewal of breaking (includes the image parameter and fire hair of substantial amounts of visible images for the background data base of fire detection in database
Correspondence, the image parameter of infrared light image and the correspondence of fire probability of raw probability), to avoid next time
False alarm fails to report police, further increases the accuracy rate of fire detection.
Preferably, the camera device 1 further includes history module, for recording the visible of the monitoring area collected
Light image and infrared light image, and the history module is connected with study memory module, is occurred in the control chip 11
The history module is sent in false alarm or fails to report and warned to the study memory module when false alarm either fails to report alert
The visible images and infrared light image gathered in journey.In this way, be easy to when control chip occurs false alarm or fails to report alert,
The pertinent image information of camera collection is called, so that be conducive to analyze false alarm or leakage warning reason, to avoid
False alarm next time fails to report police, further increases the accuracy rate of fire detection.
Further, the communication module 13 includes internet communication unit and/or mobile comm unit, in the control
When chip 11 judges that the monitoring area is in default fire risk state and default fire condition, the control chip 11 controls
The internet communication unit and Internet connectivity, and/or the mobile comm unit are connected with mobile radio communication, and described
Communication module 13 first fire alarm information and the second fire alarm information are sent to default fire calls center or
Remote terminal.
In the present embodiment, by setting internet communication unit and/or mobile communication list in the communication module 13
Member, when control chip 11 judges that the monitoring area is in default fire risk state and default fire condition, control communication mould
Block 13 is connected with internet or/and mobile radio communication, and communication module 13 is directly by the first fire alarm information and the second fire report
Alert information is sent to default fire calls center (such as 119 fire calls centers) or remote terminal (such as relevant person in charge
Mobile terminal), eliminate the analysis and forwarding of monitoring server 2, improve the efficiency of fire alarm.
Preferably, the image parameter of the visible images includes：The area change feature of flame and/or smog, brightness
Feature, change in shape feature and color characteristic.
Preferably, the image parameter of the infrared light image includes：Change in shape feature, color characteristic and the area of flame
Variation characteristic.
With reference to Fig. 2 and Fig. 4, the present invention also provides a kind of fire detection alarm system based on above-mentioned display device 1, the
One and second embodiment in, fire detection alarm system includes above-mentioned camera device 1, and monitoring server 2, when the prison
When control server 2 receives first fire alarm information, sent to default fire calls center 4 or remote terminal 3 short
Letter prompting；When the monitoring server 2 receives second fire alarm information, to default fire calls center 4 or
Remote terminal 3 sends SMS alarm and audio alert.
In first, second embodiment of fire detection alarm system of the present invention, when monitoring server 2 receives communication mould
During the first fire alarm information that block 13 is sent, show that control chip 11 judges that the monitoring area of camera device is in default fire
Risk status, sends short message prompt, warning is likely to occur fire, waits to default fire calls center 4 or remote terminal 3
Further confirm that；When monitoring server 2 receives the second fire alarm information of the transmission of communication module 13, show control chip
11 judge that the monitoring area of camera device 1 is in default fire condition, are sent out to default fire calls center 4 or remote terminal 3
SMS alarm and audio alert are sent, alarm has occurred and that fire, and urgent need, which is put out the fire, requires assistance.
Preferably, when what the communication module 13 that the monitoring server receives was sent is in default fire risk shape
During the positional information of state and the monitoring area of default fire condition, then being sent to default fire calls center or remote terminal should
The positional information of monitoring area.In this way, the control chip 11 in camera device 1 judges that the monitoring area of camera device is in default
When fire risk state and default fire condition, the communication module 13 sends the camera device to the monitoring server 2
Monitoring area positional information so that monitoring server receives the position letter for the monitoring area that the communication module 13 is sent
During breath, then monitoring server 2 sent to default fire calls center 4 or remote terminal 3 in default fire risk state and
The positional information of the monitoring area of default fire condition, to allow fire calls center or remote terminal to know generation fire in time
The position of monitoring area, easy to subsequently carry out follow-up rescue work of putting out the fire.
With reference to Fig. 5, the present invention also provides a kind of fire detection alarm method based on above-mentioned display device, the fire inspection
Observing and predicting alarm method includes：
Step S10, gathers the visible images in default monitoring area；
Filming apparatus is in visible light shooting pattern in normal work, i.e., infrared fileter deviates takes the photograph described in (not blocking)
As the light inlet of head incident side, camera collection visible images simultaneously send the visible images collected to fire detection mould
Block, it is preferable that moment associated sequence is carried out to the visible images of collection according to timing, such as can by what is gathered in 10s
See that light image is divided into 20 visible ray instantaneous pictures according to the time interval of 0.5s.
Whether step S20, according to the image parameter of the visible images of collection, identify the default monitoring area in pre-
If fire risk state；
The image parameter of the visible images of collection is analyzed according to default Fire, is handled, it is preferable that
The image parameter of the visible images includes：The area change feature of flame and/or smog, brightness, change in shape are special
Sign and color characteristic；Such as flame region is primarily determined that according to brightness of image, then to the Luminance Distribution situation of flame region
(relative to ground, the area of flame is from close above ground portion to away from ground for (brightness is gradually reduced from inside to outside), shape facility
Part is gradually reduced) etc., judge the monitoring area of the camera device whether in default fire risk state.
Step S30, when the default monitoring area is in default fire risk state, adjusts the position of infrared fileter
To block the light inlet of camera incident side, and the first fire alarm information is sent to default monitoring server；
When the default monitoring area is in default fire risk state, the position for adjusting infrared fileter is taken the photograph with blocking
As the light inlet of head incident side so that the camera of camera device can only gather infrared light image, by other colored lights or colourless
Light filters, and sends the first fire alarm information to default monitoring server, and warning is likely to occur fire, waits further
Confirm.
Step S40, gathers the infrared light image in the default monitoring area；
Camera gathers the infrared light image in the detection zone that the filming apparatus is detected, and by the infrared light of collection
Image is sent to fire detection module.
Whether step S50, according to the image parameter of the infrared light image of collection, identify the default monitoring area in pre-
If fire condition；
Step S60, when the default monitoring area is in default fire condition, sends out to the default monitoring server
Send the second fire alarm information.
The fire detection module is docked according to the image parameter of the infrared light image of collection and default infrared measurement of temperature algorithm
The infrared light image of receipts is analyzed, handled, it is preferable that the image parameter of the infrared light image includes：The shape of flame becomes
Change feature, color characteristic and area change feature；Such as the figure of doubtful flame in monitoring area is drawn according to infrared measurement of temperature algorithm
The temperature of picture, if the temperature of the image of the doubtful flame is more than predetermined threshold value, judges on fire in monitoring area, that is, judges institute
When stating the monitoring area of camera device and being in default fire condition, the communication module is controlled to send the to the monitoring server
Two fire alarm informations are to report fire behavior.
In the present embodiment, realize camera device in visible light shooting pattern and infrared bat by rotating infrared fileter
Take the photograph between pattern and switch, so as to fulfill the secondary detection and judgement of visible ray and infrared light, improve the accuracy rate of fire detection；
Meanwhile integrated visible images collection and infrared image acquisition without two camera devices, and are based on existing security protection in one
Monitoring system, i.e. security protection and fire detection alarm system one, greatly reduce camera device and arrangement based on the camera device
The cost of fire detection alarm system.
Further, with reference to Fig. 6, fire detection alarm method second embodiment of the present invention is proposed based on first embodiment,
In a second embodiment, step S20 includes：
Step S201, carries out at analysis the image parameter of the visible images of collection according to default Fire
Reason, obtains fire probability；
Step S202, judges whether the fire probability is more than predetermined threshold value, when the fire probability is more than
During predetermined threshold value, identify that the default monitoring area is in default fire risk state.
In the present embodiment, visible images parameter is prestored in filming apparatus and according to default Fire
The image parameter of the visible images of collection is analyzed and processed with the visible images for obtaining collection and the visible ray to prestore
The matching degree of image parameter, then according to the matching degree obtain corresponding fire probability (visible images of collection with it is pre-
The matching degree and fire probability for the visible images parameter deposited have correspondence, which can pass through existing fire
Calamity recognizer is realized), and then judge whether the fire probability is more than predetermined threshold value, when the fire probability is big
When predetermined threshold value, identify that the default monitoring area is in default fire risk state, thus by it is a kind of it is relatively simple in terms of
Calculation method show that fire sending probability and the identification default monitoring area are in default fire risk state, improves fire
The efficiency of detection.
Further, with reference to Fig. 7, fire detection alarm method 3rd embodiment of the present invention is proposed based on first embodiment,
In the third embodiment, step S50 includes：
Step S501, analyzes and processes the image parameter of the infrared light image of collection, obtains flame temperature；
Step S502, judges whether the flame temperature is more than preset temperature value, when the flame temperature is more than default temperature
During angle value, identify that the default monitoring area is in default fire risk state.
In the present embodiment, default infrared measurement of temperature algorithm is prestored in filming apparatus, and is calculated according to default infrared measurement of temperature
Method analyzes and processes the image parameter of the infrared light image of collection, obtains flame temperature and (obtains the monitoring of filming apparatus
The temperature of doubtful flame portion in region), whether the flame temperature of breaking is more than preset temperature value, when the flame temperature is more than
During preset temperature value, identify that the default monitoring area is in default fire risk state, thus by it is a kind of it is relatively simple in terms of
Calculation method identifies that the default monitoring area is in default fire condition, improves the efficiency of fire detection.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made, is directly or indirectly used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of camera device, it is characterised in that the camera device is arranged in safety defense monitoring system, the camera device bag
Include control chip and be connected camera, infrared fileter and communication module, the infrared filtering with the control chip respectively
Piece is movably set in the incident side of the camera,
When the control chip receives visible light shooting signal, the control chip controls the infrared fileter to deviate institute
State the light inlet of camera incident side so that the camera collection visible images and by the visible images of collection send to
The control chip；The control chip judges the prison of the camera device according to the image parameters of the visible images of reception
Region is controlled whether in default fire risk state；
When the control chip judges that the monitoring area is in default fire risk state, described in the control chip control
Communication module sends the first fire alarm information to the monitoring server of peripheral hardware, and controls the infrared fileter to rotate to block
The light inlet of the camera incident side, so that the camera gathers infrared light image and sends to the control chip；
The control chip according to the image parameter of the infrared light image of reception, judge the camera device monitoring area whether
In default fire condition, when the control chip judges that the monitoring area is in default fire condition, control described logical
Believe that module sends the second fire alarm information to the monitoring server.
2. camera device as claimed in claim 1, it is characterised in that the camera device further includes locating module, described
When control chip judges that the monitoring area is in default fire risk state and default fire condition, the locating module is controlled
Positioned, and receive the positional information that the locating module positions；The control chip controls the communication module will
The positional information of the monitoring area of reception is sent to the monitoring server.
3. camera device as claimed in claim 1, it is characterised in that the communication module include internet communication unit and/
Or mobile comm unit, judge that the monitoring area is in default fire risk state and default fire shape in the control chip
During state, the control chip controls the internet communication unit and Internet connectivity, and/or the mobile comm unit and shifting
Dynamic communication network connection, and the communication module sends first fire alarm information and the second fire alarm information to pre-
If fire calls center or remote terminal.
4. a kind of fire detection alarm system, it is characterised in that the fire detection alarm system is appointed including claims 1 to 3
Camera device described in meaning one, and monitoring server,
When the monitoring server receives first fire alarm information, to default fire calls center or long-range whole
End sends short message prompt；
When the monitoring server receives second fire alarm information, to default fire calls center or long-range whole
End sends SMS alarm and audio alert.
5. fire detection alarm system as claimed in claim 4, it is characterised in that described in being received when the monitoring server
During the positional information for the monitoring area in default fire risk state and default fire condition that communication module is sent, then to pre-
If fire calls center or remote terminal send the positional information of the monitoring area.
6. a kind of fire detection alarm method of the camera device based on described in any one in claims 1 to 3, its feature exist
In the fire detection alarm method includes：
Visible images in the default monitoring area of collection；
According to the image parameter of the visible images of collection, identify the default monitoring area whether in default fire risk shape
State；
When the default monitoring area is in default fire risk state, the position of infrared fileter is adjusted to block camera
The light inlet of incident side, and send the first fire alarm information to default monitoring server；
Gather the infrared light image in the default monitoring area；
According to the image parameter of the infrared light image of collection, identify the default monitoring area whether in default fire condition；
When the default monitoring area is in default fire condition, the second fire report is sent to the default monitoring server
Alert information.
7. fire detection alarm method as claimed in claim 6, it is characterised in that the visible images according to collection
Image parameter and default Fire, identify the step of whether default monitoring area is in default fire risk state
Including：
The image parameter of the visible images of collection is analyzed and processed, obtains fire probability；
Judge whether the fire probability is more than predetermined threshold value, when the fire probability is more than predetermined threshold value, know
Not described default monitoring area is in default fire risk state.
8. fire detection alarm method as claimed in claim 6, it is characterised in that the infrared light image according to collection
Image parameter and default infrared measurement of temperature algorithm, identify whether the default monitoring area wraps in the step of default fire condition
Include：
The image parameter of the infrared light image of collection is analyzed and processed, obtains flame temperature；
Judge whether the flame temperature is more than preset temperature value, when the flame temperature is more than preset temperature value, identify institute
State default monitoring area and be in default fire risk state.
9. fire detection alarm method as claimed in claim 6, it is characterised in that the image parameter bag of the visible images
Include：The area change feature of flame and/or smog, brightness, change in shape feature and color characteristic.
10. fire detection alarm method as claimed in claim 6, it is characterised in that the image parameter of the infrared light image
Including：Change in shape feature, color characteristic and the area change feature of flame.
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