CN106910311A - A kind of real-time wide area synchronous satellite monitoring method of power network mountain fire and monitoring system - Google Patents
A kind of real-time wide area synchronous satellite monitoring method of power network mountain fire and monitoring system Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 47
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000002310 reflectometry Methods 0.000 claims abstract description 25
- 208000008589 Obesity Diseases 0.000 claims abstract description 11
- 235000008935 nutritious Nutrition 0.000 claims abstract description 11
- 235000020824 obesity Nutrition 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 230000001131 transforming effect Effects 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 17
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0014—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation from gases, flames
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0066—Radiation pyrometry, e.g. infrared or optical thermometry for hot spots detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
Abstract
A kind of real-time wide area synchronous satellite monitoring method of power network mountain fire, comprises the following steps：First with the remote sensing signal of the synchronous satellite different wave length of remote sensing signal reception device real-time reception covering designated area；To each pixel for receiving, nutritious obesity is carried out using the reflectivity and/or bright temperature value of each pixel, judge whether the pixel is cloud layer, if not, judge whether it is absolute mountain fire focus using the bright temperature value data of the pixel special modality, if not then judging whether it belongs to potential mountain fire focus to the bright temperature value data of its surrounding pixel point, then for the absolute mountain fire focus and potential mountain fire focus for judging, judge whether it is solar flare；If it has not, then filtering out fiery point using digital geographic information map；Fire point is judged using power network power transmission and transforming equipment positional information finally, optionally issue alarm.The inventive method can simultaneously realize the real-time and wide area monitoring of power network mountain fire, meet power network mountain fire actual monitoring demand.
Description
Technical field
The present invention relates to power network mountain fire monitoring technical field, and in particular to a kind of real-time wide area monitoring method of power network mountain fire and
System.
Background technology
Easily there is mountain fire disaster in China Middle Eastern, weather, spread to when near power network when continuous fine, easily make
Into a large amount of line trippings and scaling loss, one of the harm as electric power netting safe running most serious.Power network mountain fire occur randomness it is big, point
Cloth is multi-point and wide-ranging, it is necessary to carry out real-time wide area monitoring, could in time find mountain fire, carries out early warning with disposal.
Existing power network mountain fire monitoring method is mainly two ways.One is pacified on ground base station or electric power line pole tower
Dress mountain fire monitors sensor (referring to No. 201310290055.6 Chinese patents of ZL), to the mountain in 3-5 kilometer ranges around base station
Fire carries out real-time monitoring, and its main deficiency is that the technical method can only real-time monitoring subrange, it is impossible to realize power network mountain fire
Wide area monitoring, it is impossible to adapt to multi-point and wide-ranging power network mountain fire monitoring requirements.Two is using polar-orbiting satellites such as aqua, terra
To transmission line of electricity, nearby fire point is monitored infrared remote sensing data, and its main deficiency is that polar-orbiting satellite is influenceed by transit time
(average per just once polar-orbiting satellite is passed by within 1-2 hours), and 2000 kilometers of covering can only be scanned every time, it is impossible to realize mountain fire
In real time, wide area monitoring (referring to Chinese patents such as ZL 201310421175.5).
In addition, synchronous satellite monitoring range covering the whole of China, and send a secondary data every 15min, it is possible to achieve Gao Shi
Between precision wide area monitoring, but synchronous satellite orbit, apart from 36000 kilometers of ground, infrared signal is weak.And
It is to carry out sentencing knowledge using the threshold value of infrared channel in polar-orbiting satellite that No. ZL201310421175.5 is waited Chinese patent, it is adaptable to satellite
The stronger polar-orbiting satellite of signal, is not suitable for the infrared weak signal fire point of synchronous satellite and sentences knowledge.
The content of the invention
The technical problems to be solved by the invention are to overcome the shortcomings of to be mentioned and defect in background above technology, there is provided one
Kind of the real-time wide area synchronous satellite monitoring method of power network mountain fire and corresponding monitoring system, with realize simultaneously the real-time of power network mountain fire with
Wide area is monitored, and meets power network mountain fire actual monitoring demand.
In order to solve the above technical problems, technical scheme proposed by the present invention is a kind of real-time wide area synchronous satellite of power network mountain fire
Monitoring method, the monitoring method is comprised the following steps：
(1) synchronous satellite the Wide Area Power mountain fire remote sensing signal reception device is utilized, real-time reception covers the height of designated area
The remote sensing signal of accurate synchronization satellite different wave length, each pixel contains the passage of multiple difference micron levels, the passage
Bright temperature value and reflectivity be designated as T respectively1、T2、……、TnAnd R1、R2、……、Rn, n is the positive integer more than 2；In this step
Synchronous satellite the Wide Area Power mountain fire remote sensing signal reception device preferably use No. 201510255188.9 Chinese patents of application number
Disclosed in device；
(2) parameter value of each pixel to being received in above-mentioned steps (1), using each pixel reflectivity and/
Or bright temperature value carries out nutritious obesity, judge whether the pixel is cloud layer, if it is directly reject, otherwise, into next step
Suddenly；
(3) to not being judged as the pixel of cloud layer in above-mentioned steps (2), using the bright temperature value of the pixel special modality
Data, directly judge whether it is absolute mountain fire focus, if yes then enter following step (5), if it is not, then entering into down
State step (4)；
(4) to not being judged to the pixel of absolute mountain fire focus in above-mentioned steps (3), using the pixel and its surrounding
The bright temperature value data of pixel judge whether it belongs to potential mountain fire focus, if yes then enter following step (5), if not
It is then directly to reject；
(5) the potential mountain fire focus that the absolute mountain fire focus and above-mentioned steps (4) for judging for above-mentioned steps (3) judge,
Judge whether it is solar flare；If it is determined that being solar flare, then the focus is rejected；Then it is apparent mountain fire focus, under if it is determined that being no
State step (6)；
(6) for being judged to the pixel of apparent mountain fire focus in above-mentioned steps (5), using in digital geographic information map
Water body, land type, vegetation information screened (preferably using the side in No. 201410196479.0 Chinese patents of application number
Method is screened), the pixel without ignition condition directly to be rejected, remaining pixel is then judged to fiery point, and enters
Next step；
(7) the fire point judged in above-mentioned steps (6) is judged using power network power transmission and transforming equipment positional information, analyzes it
Whether it is the power network mountain fire point for influenceing power grid security, if it is determined that be yes, then by issue alarm of alarming；If it is not, then rejecting.
Above-mentioned monitoring method, it is preferred that in the step (1), the passage of the multiple different micron levels includes
0.6 micron, 0.8 micron, 4 microns and 11 microchannels, accordingly, the bright temperature value of each pixel is designated as T respectively0.6、T0.8、
T4、T11, the reflectivity of each pixel is designated as R0.6、R0.8、R4、R11。
It is further preferred that in the step (2), cloud layer inspection is carried out using the reflectivity and/or bright temperature value of each pixel
The concrete operations of survey refer to：To each pixel received in step (1), using 0.6 micron, 0.8 microchannel signal
The bright temperature value of reflectivity and 11 microchannels carries out nutritious obesity.
Still more preferably, it is described using 0.6 micron, the reflectivity of 0.8 microchannel signal and 11 microchannels
The specific method that bright temperature value carries out nutritious obesity is：As the reflectivity R of 0.6 microchannel signal0.6With 0.8 microchannel signal
Reflectivity R0.8Sum be more than 1.2, or 11 microchannels bright temperature value T11During less than 265K, judge that the pixel is cloud layer, directly
Connect rejecting.
Above-mentioned monitoring method, it is preferred that in the step (3), the bright temperature value using the pixel special modality
Data judge whether it is that the concrete operations of absolute mountain fire focus include：Using the bright temperature value T of 4 microchannels4And 11 microns
The bright temperature value T of passage11Judged, if i.e. T4More than 330K and T4-T11More than 15K, then it is judged as absolute mountain fire focus.
It is further preferred that in the step (4), being sentenced using the bright temperature value data of the pixel and its surrounding pixel point
Whether disconnected its concrete operations for belonging to potential mountain fire focus include：Using pixel and its 4 microchannels of surrounding 3*3 pixels
Bright temperature value average value DT4To judge whether it belongs to potential mountain fire focus, if the i.e. bright temperature of the microchannel of pixel 4
Value T4More than 300K, and T4-DT4During more than 10K, then it is judged as potential mountain fire focus.
Above-mentioned monitoring method, it is preferred that in the step (5), the decision method of the solar flare is specifically included：
If t sunshine is f in the place incidence angle that longitude is lon, latitude is lat in one day1(t, lon, lat),
The angle of reflection of the place relative synchronization satellite is f2(lon,lat)；
The absolute mountain fire focus hot judged the step (3)x(lonx,latx) whether meet f1(t,lonx,latx)=
f2(lonx,latx), if meeting, reject the absolute mountain fire focus；If it is not satisfied, being then apparent mountain fire focus；
The potential mountain fire focus hot judged the step (4)y(lony,laty) whether meet f1(t,lony,laty)=
f2(lony,laty), if meeting, reject the potential mountain fire focus；If it is not satisfied, being then apparent mountain fire focus.
Above-mentioned monitoring method, it is preferred that in the step (6), described refers to digital geographical letter without ignition condition
Water body, Urban Land or unvegetated pixel are shown as in breath map.
Used as a total technology design, the present invention also provides a kind of power network mountain fire real-time wide area synchronous satellite monitoring system
System, including：
Synchronous satellite signal receiving module：For real-time reception, the high-precise synchronization satellite for processing covering designated area not
The remote sensing signal of co-wavelength；
Cloud detection module：The parameter value of each pixel for synchronous satellite signal receiving module to be received enters to rack
Layer detection, and reject the partial pixel point from cloud layer reflection in infrared satellite signal；The parameter value includes each pixel
Reflectivity and/or bright temperature value；
Absolute mountain fire focus identification module：The synchronous satellite signal that the cloud detection module output is known for sentencing whether there is
Absolute mountain fire focus；
Potential mountain fire focus recognizes module：The synchronous satellite letter of the absolute mountain fire focus identification module output is known for sentencing
Pixel in number in addition to absolute mountain fire focus whether there is potential mountain fire focus；
Solar flare detection module：For rejecting being caused by solar flare factor of exporting in the absolute mountain fire focus identification module
Absolute mountain fire focus, and reject the potential mountain fire caused by solar flare factor exported in the potential mountain fire focus identification module
Focus；Apparent mountain fire focus is exported simultaneously；
Geography information screening module：The module is using the water body, land type, vegetation letter stored in GIS-Geographic Information System
Breath rejects the apparent mountain fire focus of the non-fire point exported in the solar flare detection module, while exporting fiery point information；
Power network mountain fire detection module：The module rejects the geography information screening using power network power transmission and transforming equipment positional information
The fiery point to grid equipment non-hazardous exported in module, exports power network mountain fire point information and triggers corresponding warning device.
Compared with prior art, the advantage of the invention is that：
1) the real-time wide area monitoring of power network mountain fire can be realized, monitoring time interval is less than 10min, and monitoring range reaches whole east
Hemisphere, real-time and wide regional coverage are substantially improved；
2) infrared heat point that the non-mountain fire such as solar flare is caused can be rejected, fire point monitoring accuracy is greatly improved；
3) non-grid fire point information can be rejected, invalid alarm is reduced with fire point disposing task amount.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the operational flowchart of monitoring method of the present invention in specific embodiment.
Fig. 2 is Japan Himawari-8 synchronous satellite remote sensing signal pictures in the embodiment of the present invention.
Fig. 3 is Japan Himawari-8 synchronous satellites remote sensing signal cloud layer figure (white portion) in the embodiment of the present invention.
Fig. 4 is to be detected as the pixel A (cross region) of cloud layer in the embodiment of the present invention.
Fig. 5 is to be detected as the pixel B (cross region) of non-cloud layer in the embodiment of the present invention.
Fig. 6 be the embodiment of the present invention in detect be not absolute mountain fire focus pixel B (cross region).
Fig. 7 is the 4 bright temperature of microchannel amount of pixel B (central point) and its surrounding 3*3 pixels in the embodiment of the present invention
Angle value.
Fig. 8 be the embodiment of the present invention in geography information for forest land pixel B (cross region, 19 days 14 March in 2017
When 10 points).
Fig. 9 be the embodiment of the present invention in pixel B to power network line formed alert.
Figure 10 is somewhere scene mountain fire photo in the embodiment of the present invention.
Specific embodiment
Unless otherwise defined, the implication that all technical terms used hereinafter are generally understood that with those skilled in the art
It is identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to the limitation present invention
Protection domain.
Unless otherwise specified, various raw material, reagent, instrument and equipment used in the present invention etc. can be by city
Field is commercially available or can be prepared by existing method.
A kind of real-time wide area synchronous satellite monitoring method of power network mountain fire of the invention, the monitoring method is comprised the following steps：
(1) synchronous satellite the Wide Area Power mountain fire remote sensing signal reception device is utilized, real-time reception covers the same of designated area
The remote sensing signal of satellite different wave length is walked, each pixel contains the passage of multiple difference micron levels, multiple difference microns
The passage of rank includes 0.6 micron, 0.8 micron, 4 microns and 11 microchannels, accordingly, the bright temperature value point of each pixel
T is not designated as it0.6、T0.8、T4、T11, the reflectivity of each pixel is designated as R0.6、R0.8、R4、R11；
(2) parameter value of each pixel to being received in above-mentioned steps (1), using each pixel reflectivity and/
Or bright temperature value carries out nutritious obesity, concrete operations are each pixels to being received in step (1), using 0.6 micron, 0.8
The bright temperature value of the reflectivity of microchannel signal and 11 microchannels carries out nutritious obesity；When the reflection of 0.6 microchannel signal
Rate R0.6With the reflectivity R of 0.8 microchannel signal0.8Sum be more than 1.2, or 11 microchannels bright temperature value T11Less than 265K
When, judge that the pixel is cloud layer, directly reject, otherwise, into next step；
(3) to not being judged as the pixel of cloud layer in above-mentioned steps (2), using the bright temperature value T of 4 microchannels4And
The bright temperature value T of 11 microchannels11Judged, if i.e. T4More than 330K and T4-T11More than 15K, directly judge its whether be
Absolute mountain fire focus, if yes then enter following step (5), if it is not, then entering into following step (4)；
(4) to not being judged to the pixel of absolute mountain fire focus in above-mentioned steps (3), using the pixel and its surrounding
The bright temperature value data of pixel judge whether it belongs to potential mountain fire focus, and concrete operations include：Using pixel and its week
Enclose the average value DT of the bright temperature value of 4 microchannels of 3*3 pixels4To judge whether it belongs to potential mountain fire focus, if that is,
The bright temperature value T of the microchannel of pixel 44More than 300K, and T4-DT4During more than 10K, then it is judged as potential mountain fire focus, enters
Enter following step (5), if not then directly rejecting；
(5) the potential mountain fire focus that the absolute mountain fire focus and above-mentioned steps (4) for judging for above-mentioned steps (3) judge,
Judge whether it is solar flare；The decision method of solar flare is specifically included：
If t sunshine is f in the place incidence angle that longitude is lon, latitude is lat in one day1(t, lon, lat),
The angle of reflection of the place relative synchronization satellite is f2(lon,lat)；
The absolute mountain fire focus hot judged step (3)x(lonx,latx) whether meet f1(t,lonx,latx)=f2
(lonx,latx), if meeting, reject the absolute mountain fire focus；If it is not satisfied, be then apparent mountain fire focus, into following step
(6)；
The potential mountain fire focus hot judged the step (4)y(lony,laty) whether meet f1(t,lony,laty)=
f2(lony,laty), if meeting, reject the potential mountain fire focus；If it is not satisfied, be then apparent mountain fire focus, into following steps
Suddenly (6)；
(6) for being judged to the pixel of apparent mountain fire focus in above-mentioned steps (5), using in digital geographic information map
Water body, land type, vegetation information screened, the pixel without ignition condition is directly rejected, without catching fire
Condition refers to be shown as water body, Urban Land or unvegetated pixel in digital geographic information map, and remaining pixel is then
It is judged to fiery point, and enters next step；
(7) the fire point judged in above-mentioned steps (6) is judged using power network power transmission and transforming equipment positional information, analyzes it
Whether it is the power network mountain fire point for influenceing power grid security, if it is determined that be yes, then by issue alarm of alarming；If it is not, then rejecting.
For the ease of understanding the present invention, more complete is made to the present invention below in conjunction with Figure of description and preferred embodiment
Face, meticulously describe, but protection scope of the present invention is not limited to embodiment in detail below.
Embodiment：
A kind of real-time wide area synchronous satellite monitoring system of rice diameter power network mountain fire of power network power transmission and transforming equipment 7.3, including：
Synchronous satellite signal receiving module：For real-time reception, the synchronous satellite different wave length for the treatment of covering designated area
Remote sensing signal；
Cloud detection module：The parameter value of each pixel for synchronous satellite signal receiving module to be received enters to rack
Layer detection, and reject the partial pixel point from cloud layer reflection in infrared satellite signal；The parameter value includes each pixel
Reflectivity and/or bright temperature value；
Absolute mountain fire focus identification module：The synchronous satellite signal that the cloud detection module output is known for sentencing whether there is
Absolute mountain fire focus；
Potential mountain fire focus recognizes module：The synchronous satellite letter of the absolute mountain fire focus identification module output is known for sentencing
Pixel in number in addition to absolute mountain fire focus whether there is potential mountain fire focus；
Solar flare detection module：For rejecting being caused by solar flare factor of exporting in the absolute mountain fire focus identification module
Absolute mountain fire focus, and reject the potential mountain fire caused by solar flare factor exported in the potential mountain fire focus identification module
Focus；Apparent mountain fire focus is exported simultaneously；
Geography information screening module：The module is using the water body, land type, vegetation letter stored in GIS-Geographic Information System
Breath rejects the apparent mountain fire focus of the non-fire point exported in the solar flare detection module, while exporting fiery point information；
Power network mountain fire detection module：The module rejects the geography information screening using power network power transmission and transforming equipment positional information
The fiery point to grid equipment non-hazardous exported in module, exports power network mountain fire point information and triggers corresponding warning device.
A kind of utilization real-time wide area synchronous satellite monitoring system of above-mentioned power network mountain fire of the invention as shown in Figure 1 is monitored
Method, specifically include following steps：
(1) as shown in Fig. 2 using synchronous satellite the Wide Area Power mountain fire remote sensing signal reception device, in real-time reception covering
The remote sensing signal of the Japanese Himawari-8 synchronous satellites different wave length in state region, the remote sensing signal data to receiving can be carried out
Necessary pretreatment is calculated, and for any one width satellite image, analysis draws 0.6 micron of regional each pixel, 0.8 micro-
Rice, 4 microns and the bright temperature value T of 11 microchannels0.6、T0.8、T4、T11And its reflectivity R0.6、R0.8、R4、R11。
(2) parameter value of each pixel to being received in above-mentioned steps (1), using 0.6 micron, 0.8 microchannel
The bright temperature value of the reflectivity of signal and 11 microchannels carries out nutritious obesity, as the reflectivity R of 0.6 microchannel signal0.6With
The reflectivity R of 0.8 microchannel signal0.8Sum be more than 1.2, or 11 microchannels bright temperature value T11During less than 265K, judging should
Pixel is cloud layer (referring to Fig. 3), is directly rejected, otherwise, into next step.
For pixel A (referring to Fig. 4) (E101.6469, N28.9416), the high temperature values T of 11 microchannels11For
239.85K (is less than 265K), then judge that the point is cloud layer, rejects the pixel；
For pixel B (referring to Fig. 5) (E102.4441, N28.80437), the high temperature values T of 11 microchannels11For
292.04K (is more than 265K), then judge that the point is not cloud layer, retains the pixel, into next step.
(3) to not being judged as the pixel of cloud layer in above-mentioned steps (2), using the bright temperature value T of 4 microchannels4And
The bright temperature value T of 11 microchannels11Judged, if i.e. T4More than 330K and T4-T11More than 15K, directly judge its whether be
Absolute mountain fire focus, if yes then enter following step (5), if it is not, then entering into following step (4).
For pixel B (referring to Fig. 6) (E102.4441, N28.80437), the high temperature values T of 4 microchannels11It is 320K
(being less than 330K), then judge that the point is not absolute mountain fire focus, retains the pixel, into next step.
(4) to not being judged to the pixel of absolute mountain fire focus in above-mentioned steps (3), using the pixel and its surrounding
The bright temperature value data of pixel judge whether it belongs to potential mountain fire focus, and concrete operations include：Using pixel and its week
Enclose the average value DT of the bright temperature value of 4 microchannels of 3*3 pixels4(average value is 303.625K) judges whether it belongs to latent
At mountain fire focus (referring to Fig. 7), if the i.e. bright temperature value T of the microchannel of pixel 44More than 300K, and T4-DT4More than 10K
When, then it is judged as potential mountain fire focus, into following step (5), if not then directly rejecting.
For pixel B (E102.4441, N28.80437), the high temperature values T of 4 microchannels11It is 320K (being more than 300K),
And T4-DT4It is 16.375K (more than 10K) to be worth, then judge that the point is potential mountain fire focus, retains the pixel, into next step
Suddenly.
(5) the potential mountain fire focus that the absolute mountain fire focus and above-mentioned steps (4) for judging for above-mentioned steps (3) judge,
Judge whether it is solar flare；The decision method of solar flare is specifically included：
If t sunshine is f in the place incidence angle that longitude is lon, latitude is lat in one day1(t, lon, lat),
The angle of reflection of the place relative synchronization satellite is f2(lon,lat)；
The absolute mountain fire focus hot judged step (3)x(lonx,latx) whether meet f1(t,lonx,latx)=f2
(lonx,latx), if meeting, reject the absolute mountain fire focus；If it is not satisfied, be then apparent mountain fire focus, into following step
(6)；
The potential mountain fire focus hot judged the step (4)y(lony,laty) whether meet f1(t,lony,laty)=
f2(lony,laty), if meeting, reject the potential mountain fire focus；If it is not satisfied, be then apparent mountain fire focus, into following steps
Suddenly (6).
For pixel B (E102.4441, N28.80437), 10 points when the moment is on t=2017 March 19 14, should
Point angle of incidence of sunlight is f1(t, E102.4441, N28.80437)=25.37 °, the point is for Himawari-8 synchronous satellites
Angle of reflection be f2(E102.4441, N28.80437)=69.25 °, f1(t,lony,laty)=f2(lony,laty) condition is not
Meet, then video vegetarian refreshments B is mountain fire focus, into next step.
(6) for being judged to the pixel of apparent mountain fire focus in above-mentioned steps (5), using in digital geographic information map
Water body, land type, vegetation information screened, the pixel without ignition condition is directly rejected, without catching fire
Condition refers to be shown as water body, Urban Land or unvegetated pixel in digital geographic information map, and remaining pixel is then
It is judged to fiery point, and enters next step.
For pixel B (E102.4441, N28.80437), the digital geography information of superposition, the point (is not water for forest land
Body, Urban Land or unvegetated pixel), retain the pixel, it is judged to fiery point, into next step (referring to Fig. 8).
(7) the fire point judged in above-mentioned steps (6) is judged using power network power transmission and transforming equipment positional information, analyzes it
Whether it is the power network mountain fire point (distance is less than 5km) for influenceing power grid security, if it is determined that be yes, then by issue alarm of alarming；If
It is no, then reject.
For pixel B (E102.4441, N28.80437), the point then retains from 500kV circuits 1.2km (being less than 5km)
The pixel, judgement has an impact to power network, and issues early warning (referring to Fig. 9).
After the alarm issue that pixel B is formed, certain province somewhere (E102.444, N28.804) scene turns out to be mountain fire, the scene of a fire
Nearby there is power network line, Figure 10 is live practical photograph.
Claims (9)
1. the real-time wide area synchronous satellite monitoring method of a kind of power network mountain fire, it is characterised in that the monitoring method includes following step
Suddenly：
(1) synchronization of synchronous satellite the Wide Area Power mountain fire remote sensing signal reception device, real-time reception covering designated area is utilized to defend
The remote sensing signal of star different wave length, each pixel containing the passage of multiple difference micron levels, the bright temperature value of the passage and
Reflectivity is designated as T respectively1、T2、……、TnAnd R1、R2、……、Rn, n is the positive integer more than 2；
(2) parameter value of each pixel to being received in above-mentioned steps (1), using the reflectivity of each pixel and/or bright
Temperature value carries out nutritious obesity, judges whether the pixel is cloud layer, if it is directly rejects, otherwise, into next step；
(3) to not being judged as the pixel of cloud layer in above-mentioned steps (2), using the bright temperature value number of the pixel special modality
According to directly judging whether it is absolute mountain fire focus, if yes then enter following step (5), if it is not, then entering into following
Step (4)；
(4) to not being judged to the pixel of absolute mountain fire focus in above-mentioned steps (3), using the pixel and its surrounding pixel
The bright temperature value data of point judge whether it belongs to potential mountain fire focus, if yes then enter following step (5), if not then
Directly reject；
(5) the potential mountain fire focus that the absolute mountain fire focus and above-mentioned steps (4) for judging for above-mentioned steps (3) judge, judges
Whether it is solar flare；If it is determined that being solar flare, then the focus is rejected；Then it is apparent mountain fire focus, into following steps if it is determined that being no
Suddenly (6)；
(6) for being judged to the pixel of apparent mountain fire focus in above-mentioned steps (5), using the water in digital geographic information map
Body, land type, vegetation information are screened, and the pixel without ignition condition is directly rejected, and remaining pixel is then
It is judged to fiery point, and enters next step；
(7) using power network power transmission and transforming equipment positional information to the fire point judged in above-mentioned steps (6) judge whether analyze it
To influence the power network mountain fire point of power grid security, if it is determined that be yes, then by issue alarm of alarming；If it is not, then rejecting.
2. monitoring method according to claim 1, it is characterised in that in the step (1), the multiple different micron orders
Other passage includes 0.6 micron, 0.8 micron, 4 microns and 11 microchannels, accordingly, the bright temperature value difference of each pixel
It is designated as T0.6、T0.8、T4、T11, the reflectivity of each pixel is designated as R0.6、R0.8、R4、R11。
3. monitoring method according to claim 2, it is characterised in that in the step (2), using the reflection of each pixel
The concrete operations that rate and/or bright temperature value carry out nutritious obesity refer to：To each pixel received in step (1), using 0.6
The bright temperature value of micron, the reflectivity of 0.8 microchannel signal and 11 microchannels carries out nutritious obesity.
4. monitoring method according to claim 3, it is characterised in that described to utilize 0.6 micron, 0.8 microchannel signal
Reflectivity and the bright temperature value of 11 microchannels carry out the specific method of nutritious obesity and be：When the reflection of 0.6 microchannel signal
Rate R0.6With the reflectivity R of 0.8 microchannel signal0.8Sum be more than 1.2, or 11 microchannels bright temperature value T11Less than 265K
When, judge that the pixel is cloud layer, directly reject.
5. the monitoring method according to any one of claim 2-4, it is characterised in that in the step (3), the utilization
The bright temperature value data of the pixel special modality judge whether it is that the concrete operations of absolute mountain fire focus include：Using 4 microns
The bright temperature value T of passage4And 11 microchannel bright temperature value T11Judged, if i.e. T4More than 330K and T4-T11It is more than
15K, then be judged as absolute mountain fire focus.
6. monitoring method according to claim 5, it is characterised in that in the step (4), using the pixel and its week
Whether enclosing the bright temperature value data of pixel includes judging its concrete operations for belonging to potential mountain fire focus：Using pixel and its
The average value DT of the bright temperature value of 4 microchannels of surrounding 3*3 pixels4To judge whether it belongs to potential mountain fire focus, i.e., such as
The really bright temperature value T of the microchannel of pixel 44More than 300K, and T4-DT4During more than 10K, then it is judged as potential mountain fire focus.
7. the monitoring method according to any one of claim 2-4, it is characterised in that in the step (5), the solar flare
Decision method specifically include：
If t sunshine is f in the place incidence angle that longitude is lon, latitude is lat in one day1(t, lon, lat), the place
The angle of reflection of relative synchronization satellite is f2(lon,lat)；
The absolute mountain fire focus hot judged the step (3)x(lonx,latx) whether meet f1(t,lonx,latx)=f2
(lonx,latx), if meeting, reject the absolute mountain fire focus；If it is not satisfied, being then apparent mountain fire focus；
The potential mountain fire focus hot judged the step (4)y(lony,laty) whether meet f1(t,lony,laty)=f2
(lony,laty), if meeting, reject the potential mountain fire focus；If it is not satisfied, being then apparent mountain fire focus.
8. the monitoring method according to any one of claim 2-4, it is characterised in that described not have in the step (6)
It refers to be shown as water body, Urban Land or unvegetated pixel in digital geographic information map to have ignition condition.
9. the real-time wide area synchronous satellite monitoring system of a kind of power network mountain fire, it is characterised in that including：
Synchronous satellite signal receiving module：For real-time reception, process the distant of the synchronous satellite different wave length for covering designated area
Sense signal；
Cloud detection module：The parameter value of each pixel for synchronous satellite signal receiving module to be received carries out cloud layer inspection
Survey, and reject the partial pixel point from cloud layer reflection in infrared satellite signal；Reflection of the parameter value comprising each pixel
Rate and/or bright temperature value；
Absolute mountain fire focus identification module：The synchronous satellite signal of the cloud detection module output is known for sentencing with the presence or absence of absolute
Mountain fire focus；
Potential mountain fire focus recognizes module：For in the synchronous satellite signal for sentencing the knowledge absolute mountain fire focus identification module output
Pixel in addition to absolute mountain fire focus whether there is potential mountain fire focus；
Solar flare detection module：For reject export in the absolute mountain fire focus identification module by solar flare factor cause it is absolute
Mountain fire focus, and reject the potential mountain fire heat caused by solar flare factor exported in the potential mountain fire focus identification module
Point；Apparent mountain fire focus is exported simultaneously；
Geography information screening module：The module is picked using the water body, land type, vegetation information that are stored in GIS-Geographic Information System
Except the apparent mountain fire focus of the non-fire point of output in the solar flare detection module, while exporting fiery point information；
Power network mountain fire detection module：The module rejects the geography information screening module using power network power transmission and transforming equipment positional information
The fiery point to grid equipment non-hazardous of middle output, exports power network mountain fire point information and triggers corresponding warning device.
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