CN108831116A - Transmission line forest fire spreads the bearing calibration of behavior multistage, system and storage medium - Google Patents
Transmission line forest fire spreads the bearing calibration of behavior multistage, system and storage medium Download PDFInfo
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Abstract
The present invention relates to transmission & distribution electro-technical field, a kind of transmission line forest fire sprawling behavior multistage bearing calibration, system and storage medium are disclosed, spreads to wire time, tripping place to accurately calculate mountain fire.The method of the present invention includes：Obtain the coordinate information and target transmission line information of the first original fire point；According to the coordinate information, the geography information that the first fire point spreads corresponding potential target region is obtained；Judge whether the first fire point can spread to the target transmission line of electricity according to the geography information, if can, based on corresponding one new sprawling track of each classification step-length and dynamically track is carried out to sprawling track before, spread track respectively by simultaneous to be recently according to determine the fire point position for deriving next sprawling track apart from the target transmission line of electricity vertical range, until any sprawling track spreads to the target transmission line of electricity, then calculates and reach the accumulation duration that the sprawling track of the target transmission line of electricity begins to extend away from the first fire point at first.
Description
Technical field
The present invention relates to transmission & distribution electro-technical fields more particularly to a kind of transmission line forest fire to spread behavior multistage correction side
Method, system and storage medium.
Background technique
Since people such as burn the grass on waste land, visit a grave at the influence of the fiery custom of production and living, power transmission line corridor easily occurs on a large scale
Mountain fire causes a plurality of route while power failure of tripping, or even causes mains breakdown, and mountain fire has become the safety for seriously threatening bulk power grid
The operation hot issue new with social normal power supply.Currently, domestic and foreign scholars are in transmission line forest fire prediction, the monitoring of satellite wide area
Carry out systematic research in terms of efficient quick extinguishing, reduces the loss of power grid mountain fire disaster.However, in discovery power transmission line
After the mountain fire of road, needs to judge the sprawling direction of transmission line forest fire, studies and judges whether mountain fire can spread to below transmission line of electricity, is more
Which position of transmission line of electricity can be spread to below route, spread to after long-time, to mention for transmission line forest fire emergency
For scientific basis.Therefore, there is an urgent need to carry out the calculating of transmission line forest fire sprawling behavior, the developmenting spread situation based on mountain fire
Plan ahead deployment, to take corresponding control measure, reduces the influence of mountain fire disaster.
Existing forest fire appealing algorithm considers in the scene of a fire as a whole, using single calculation method, ignores
The different environment in the scene of a fire and element, cause the reference significance of calculated result little, lose sprawling and analyze due analysis and support
Effect, needs to improve.Patent CN201310382753 discloses a kind of method of assessment mountain fire initiation transmission line malfunction probability,
Its mechanism for causing transmission line malfunction according to mountain fire is made by reflecting inside and outside portion's factor relevant to transmission line malfunction
With wind direction and landform speed vectorial combination, calculates the flame spread rates under wind speed and gradient combined influence and determine the scene of a fire
Burn profile.But the patent does not consider the factors such as isolation strip, landform, the wind speed and direction Parameters variation in the scene of a fire to transmission line forest fire
The effect of sprawling, can not accurate calculation.Paper " improvement of the Simulation of Forest Fire algorithm based on Rothermel model " is by boolean
Operation method, which introduces, to be solved more ignition point firing ranges and calculates, and has corrected the defect that forest fire range is isolated, but its side
Method only considers more fire point sprawlings track, still uses single elliptical orbit model, and sprawling trajectory calculation fining degree cannot expire
The requirement of the sufficient accurate Quick rescue of transmission line forest fire.Therefore, there is an urgent need to propose that a kind of transmission line forest fire sprawling behavior is more
Grade correction calculation method.
Summary of the invention
Present invention aims at disclose a kind of transmission line forest fire sprawling behavior multistage bearing calibration, system and storage to be situated between
Matter spreads to wire time, tripping place to accurately calculate mountain fire.
To achieve the above object, the invention discloses a kind of transmission line forest fires to spread the bearing calibration of behavior multistage, including：
Obtain the coordinate information and target transmission line information of the first original fire point；
According to the coordinate information, the geography information that the first fire point spreads corresponding potential target region is obtained；
Judge whether the first fire point can spread to the target transmission line of electricity according to the geography information, if it can,
The first sprawling track of the first fire point is determined according to the geography information of correspondence the first fire point and wind speed and direction information, and
The classification step-length of the derivative next sprawling track in newborn sprawling track is set；
When analyzing first sprawling track and spreading to the range of the corresponding classification step-length, calculates and transmit electricity with the target
The second fiery point that the nearest fire point of route vertical range spreads track for second, and according to the geographical letter of correspondence the second fire point
Breath and wind speed and direction information determine the second sprawling track of the second fire point；
When analyzing second sprawling track and spreading to the range of the corresponding classification step-length, from each sprawling track before
Present scope and it is described second sprawling track present scope in selection it is nearest apart from the target transmission line of electricity vertical range
Fire point be third fire point that third spreads track, and according to the geography information and wind speed and direction information of the correspondence third fire point
Determine the third sprawling track of the third fire point；
And so on, corresponding one new sprawling track of each classification step-length simultaneously carries out dynamic to sprawling track before
Tracking spreads track respectively by simultaneous to be recently foundation apart from the target transmission line of electricity vertical range under determining derived
Then the fire point position of one sprawling track calculates and reaches at first until any sprawling track spreads to the target transmission line of electricity
The accumulation duration that the sprawling track of the target transmission line of electricity begins to extend away from the first fire point.
It corresponds to the above method, invention additionally discloses a kind of transmission line forest fire sprawling behavior multistages to correct system,
Including memory, processor and store the computer program that can be run on a memory and on a processor, the processor
The step of realizing the above method when executing the computer program.
Similarly, invention additionally discloses a kind of computer readable storage mediums, are stored thereon with computer program, described program
The step of above method is realized when being executed by processor.
The invention has the advantages that：
Transmission line of electricity whether accurately can be spread in the accurate computing electric power line mountain fire of Police Command Center, while high
Accuracy computation transmission line forest fire spreads path, and it is high to calculate accuracy rate for strong operability.It is spread and is calculated according to transmission line forest fire
Conclusion scientific can dispose, scheduling fire extinguishing equipment, realize the accurate reply of transmission line forest fire, mountain fire near reduction transmission line of electricity
Caused loss.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the sprawling track schematic diagram of the preferred embodiment of the present invention；
Fig. 2 is that the preferred embodiment of the present invention judges whether fire point can spread to target transmission line of electricity schematic diagram；
Fig. 3 is the derivative schematic diagram in classification correction sprawling track of the preferred embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Embodiment 1
The present embodiment discloses a kind of transmission line forest fire sprawling behavior multistage bearing calibration, includes the following steps：
Step S1, the coordinate information and target transmission line information of the first original fire point are obtained.
In this step, optionally, the coordinate information of the first original fire point can obtain its longitude and latitude by the satellite that passes by
Spend information.
Step S2, according to the coordinate information, the geography that the first fire point spreads corresponding potential target region is obtained
Information.
In this step, optionally, potential target region is to set circle corresponding in radius with the first fire point for the center of circle
Region.The geography information includes at least soil/vegetation pattern and slope aspect corresponding to each latitude and longitude coordinates in target area
The features such as distribution, so that the type of city, river, highway, water body and ice is set as stopping the obstacle of fire spreading by subsequent step
Object and calculated for subsequent derive the sprawling track of new fire point.
Step S3, judge whether the first fire point can spread to the target transmission line of electricity according to the geography information,
If it can, determining the first sprawling of the first fire point according to the geography information of correspondence the first fire point and wind speed and direction information
Track, and the classification step-length of the derivative next sprawling track in newborn sprawling track is set.
Preferably, the method for the present invention is also according to all types of barriers between the first fire point and the target transmission line of electricity
Spatial relation, in the target area, by the target transmission line of electricity be divided into the fire section that can spread to of point and
The section that fire point cannot be spread to；And any sprawling track is spread into any fire and puts the section that can be spread to as institute
State the end time of time duration.
In this step, optionally, classification step-length is that the long axis length of corresponding elliptical path spreads to specific length from zero
It spends (30 meters in such as subsequent embodiment 2).
It on the other hand, will when judging whether the first fire point can spread to the target transmission line of electricity according to geography information
Soil/vegetation pattern is that the type of city, river, highway, water body and ice is set as stopping the obstacle of fire spreading in target area
Object.Optionally, the present embodiment be also based on forestry vegetation database division 24 soils/kind of vegetation pattern, according to each soil/
The complexity of mountain fire occurs for vegetation pattern, defines its corresponding combustible damped coefficient respectively.
Step S4, when analyzing first sprawling track and spreading to the range of the corresponding classification step-length, calculate with it is described
The second fiery point that the nearest fire point of target transmission line of electricity vertical range spreads track for second, and according to the fiery point of correspondence described second
Geography information and wind speed and direction information determine it is described second fire point second sprawling track；And analysis the second sprawling rail
Present scope and the second sprawling rail when mark spreads to the range of the corresponding classification step-length, from each sprawling track before
The fire point nearest apart from the target transmission line of electricity vertical range is selected to spread the third of track for third in the present scope of mark
It is fiery, and determine that the third of the third fire point is spread according to the geography information of the correspondence third fire point and wind speed and direction information
Track；And so on, the new sprawling track of each corresponding one of classification step-length and to sprawling track before carry out dynamic with
Track spreads track respectively by simultaneous to be recently next according to being derived with determination apart from the target transmission line of electricity vertical range
Then the fire point position for spreading track calculates until any sprawling track spreads to the target transmission line of electricity and reaches institute at first
State the accumulation duration that the sprawling track of target transmission line of electricity begins to extend away from the first fire point.
In this step, it is preferred that each sprawling track is as shown in Figure 1：Respectively using fire point for focus and long axis as wind direction with
The elliptical path of slope aspect vector sum is spread, and long axis is forest fire appealing direction；Wherein, VfFor transmission line forest fire duration and degree of heating
Rate of propagation, Vfa'Initial velocity, V are spread for transmission line forest fire rearfbAnd Vfb'The respectively rate of propagation of the 2 side fire wings.It can
Choosing, the determination in relation to spreading track can refer to the " forest fire based on Rothermel model of paper pointed by background technique
The improvement of simulation algorithm ".
In the present embodiment, preferably：
Vf=V0·Ks·exp(0.1783·Vw·cosθ)·exp(3.533tanφ)1.2；
Wherein, V0For initial rate of propagation, VwFor wind speed (m/s), KsFor combustible more positive coefficient, e is natural logrithm, and θ is
The angle of wind speed and the gradient, φ are the angle of gradient in forest fire appealing area.
Further, the more positive coefficient of combustible and soil/vegetation pattern can refer to following table 1：
Table 1：
On the other hand, the fiery wing and rear speed can refer to the correlativity table of duration and degree of heating speed under different wind scales
Following table 2：
Table 2：
| Wind-force (grade) | Vf | Vfa' | Vfa' |
| 0 | Vf | Vf | Vf |
| 1-2 | Vf | 0.47Vf | 0.05Vf |
| 3-4 | Vf | 0.36Vf | 0.04Vf |
| 5-6 | Vf | 0.27Vf | 0.03Vf |
| 7 or more | Vf | 0.18Vf | 0.02Vf |
Based on the determination method of the above-mentioned sprawling track of the present embodiment, accurate sprawling track can be determined with adaptation to local conditions.
Further, the present embodiment can also further consider height above sea level factor to wind when determining the wind speed of sprawling track
The influence of speed is with the further precision for promoting processing.Wherein, the mapping relations of height above sea level and atmospheric pressure grade can refer to table 3：
Table 3：
To sum up, transmission line forest fire disclosed in the present embodiment spreads the bearing calibration of behavior multistage, has the advantages that：
Transmission line of electricity whether accurately can be spread in the accurate computing electric power line mountain fire of Police Command Center, while high
Accuracy computation transmission line forest fire spreads path, and it is high to calculate accuracy rate for strong operability.It is spread and is calculated according to transmission line forest fire
Conclusion scientific can dispose, scheduling fire extinguishing equipment, realize the accurate reply of transmission line forest fire, mountain fire near reduction transmission line of electricity
Caused loss.
Embodiment 2
The present embodiment is further to 1 specific embodiment of above-described embodiment for example, including the following steps：
(1) satellite wide area real-time monitoring fire point information is read
Each satellite passes by China when monitoring mountain fire, then generates fire point message file FTP mode and push to mountain fire sprawling
Path computing data server, and read by mountain fire sprawling path calculation program, information includes：Satellite transit time, fiery point
File push time, mountain fire latitude and longitude coordinates, alarm line name, route alarm shaft tower, alarm grade.
(2) it reads mountain fire sprawling and calculates basic data information
Read the place mountain fire position F around vegetation information (500m*500m resolution ratio), river, highway road within the scope of 1000 meters
Diameter information.Vegetation pattern (24 kinds of vegetation/land types for being divided into national forestry vegetation database) below transmission line of electricity.
(3) if fire puts soil/vegetation pattern that locating vegetation pattern is city, water body, ice, stop calculating, otherwise turn
(4)。
(4) river, the highway information within the scope of zoning are obtained, space face section object is converted to.
(5) calculate whether mountain fire can spread to below target transmission line of electricity L.
As shown in Fig. 2, drawing circle C with 1000 meters of ranges around fire point, 2 intersection points of the circle and transmission line of electricity are obtained, along defeated
The direction of electric line is respectively defined as J1With J2。
With J1With J2Line segment L is formed, space intersection operation is carried out to river, highway space face S and line segment L
(Intersection function) obtains the n intersection point of L and S, is J along the above-mentioned same direction definition1'、J'2、…Ji'、…J
'n。
Space intersection operation (Intersection function) is carried out to river, highway space face S with round C, obtains C and S
K intersection point, be defined as J " along above-mentioned same direction1、J″2、…J″i、…J″k.Including following situations：
If situation one, n=0, L and S do not have intersection point in circle and S and F is on same one side of L, then mountain fire can not spread to line
Road.
If situation two, n=0, L and S are without intersection point and S and F are in the two sides of L in circle, then mountain fire can spread to route
Arbitrary point.
To define J respectively1With J1'、J1' and J'2、…、J'nWith J2The railroad section that line segment L is divided is LS1、LS2、…、
LS(n+1), J1' and J "1、J1' and J'2、…、J'nWith J "2Corresponding space face S1、S2、…、Sn+1。
If situation three, SiWith fire point F in railroad section LSiTwo sides, then mountain fire spreads to part of path Li, by LiPath collects
To the part of path set R1={ L reached can be spreadr1,Lr2,……,Lrk, if subregion SiWith fire point in segmentation LiIt is ipsilateral, then
Mountain fire does not spread to part of path Li, by path LiThe part of path set R2={ L reached can not be spread by collectingn1,Ln2,……,
Lnp}.Thereby, the part of path L reached can be spread by being formedR1With can not spread the part of path L reachedR2。
It is then based on above-mentioned steps S4 and carries out relevant treatment.Wherein, the specific implementation of multistage correction can refer to Fig. 3, including：
1) time point when finding transmission line forest fire is set, as t0, the point nearest from transmission line of electricity vertical range is fire source
Position A0, ellipse sprawling track is labeled as G0, G0Long axis direction length be 0.
2), when ellipse spreads track G0Long axis length from 0 sprawling reach 30m when, search the elliptical path
On the point A nearest from transmission line of electricity1, which is t1。
3), with point A1Sprawling track is recalculated for fire location, obtains sprawling track G1, original ellipse sprawling track
G0Then in t1Time in develop into ellipse sprawling track
4) new fire location A, is successively selectedi, and recalculate sprawling track and obtain sprawling track Gi+1, Gi+1In fire source
Point AiSprawling time when reaching 30m along long axis direction sprawling is ti。
5), to Gi+1The sprawling track G generated in the past0—Gi, it is calculated in tiNew ellipse sprawling track in timeAnd obtain above-mentioned trackWith transmission line of electricity
Apart from closest approach Ai+1。
6), the part of path L reached is spread in conjunction with what above-mentioned steps (5) obtainedR1, repeat step 4)~5), if Gi+1With LR1There are crosspoints, then the crosspoint is the ground most reached fastly below route
Point A, mountain fire reach the minimum time below transmission line of electricity
【Concrete case】
(1) satellite wide area real-time monitoring fire point information is read
28 days 14 January in 2017:32 3 satellite monitorings of wind and cloud to pass by arrive, fire point latitude and longitude coordinates (111.9181,
25.6662) it, at from 700 meters on the left of the 500kV purple ancestor's line #41 of Yongzhou City, Hubei Province Ningyuan County, is alerted for second level.
(2) it reads mountain fire sprawling and calculates basic data information
Vegetation is shrub within the scope of 1000 meters around at reading mountain fire position F, has 1 public affairs between fire point and transmission line of electricity
Road, no river barrier.
(3) river, the highway information within the scope of zoning are obtained, space face section object S is converted to
(4) calculate whether mountain fire can spread to below route
As shown in Fig. 2, being radius picture circle C as the center of circle, with 1000 meters using fire point F, 2 for obtaining the circle and transmission line of electricity are handed over
Point, the direction along transmission line of electricity are respectively defined as J1With J2。
With J1With J2Line segment L is formed, space intersection operation is carried out to highway space face S, 4 intersection points of L and S are obtained, along upper
Stating the same direction definition is J1'、J'2、J3'、J'4。
Space intersection operation is carried out to highway space face S with round C, 2 intersection points of C and S are obtained, along above-mentioned same direction
It is defined as J1”、J'2'。
To define J respectively1With J1'、J1' and J'2、J'2With J3'、J3' and J'4、J'4With J2The line areas that line segment L is divided
Between be L1、L2、L3、L4、L5；J1' and J "1、J1' and J'2、J'2With J3'、J3' and J'4、J'4With J'2' corresponding space face S1、S2、
S3、S4、S5。
Wherein, S1With fire point F in railroad section L1Two sides, S3With fire point F in railroad section L3Two sides, S5It is online with fiery point F
Road section L5Two sides, S2With fire point F in railroad section L2Ipsilateral, S4With fire point F in railroad section L4It is ipsilateral.Therefore, which can
Spread to the L of transmission line of electricity1、L3、L5Track section.
(6) the initial rate of propagation of mountain fire is calculated
Live vegetation is based on shrub, northwester 3.8m/s, and the angle of gradient is 25 °, and wind speed and the angle of gradient are 30 °, calculates
It is to transmission line forest fire sprawling initial velocity：
It calculates each approximate ellipse path and reaches route by way of the initial climing of segmentation
Prolong speed.Transmission line forest fire rate of propagation is：
Vf=V0·Ks·exp(0.1783·Vw·cosθ)·exp(3.533tanφ)1.2=45.28m/min
And mountain fire source location set its vertical transmission line of electricity in maximum speed direction.Respectively obtain transmission line forest fire duration and degree of heating,
Rear, the 2 side fire wings rate of propagation be：45.28m/min,16.30m/min,1.81m/min,1.81m/min.
(7) as shown in figure 3, calculating mountain fire scene of a fire situation characteristic quantity using multistage wind speed and the correction of landform vector sum
A, when ellipse spreads trackLong axis when reaching 30m, search elliptical pathIn most from transmission line of electricity
Close point F2。
B, with point F2Sprawling track is recalculated for fire source point, increases sprawling track
C, rightThe sprawling track generated in the pastIts closest approach at a distance from transmission line of electricity is calculated, calculating is passed throughIt is recently F with transmission line of electricity distance3。
D, step A~C is repeated, sprawling track is obtainedPass through calculatingWith transmission line of electricity distance
Nearest is F3, and so on, until there is an elliptical pathWith when at a distance from transmission line of electricity being 0, then obtain most reaching fastly
Place A below to route, split time t1、t2、t3Respectively 6.4min, 10min and 8.9min, then mountain fire spreads to defeated
The time of electric line is 25.3min, and the place for reaching transmission line of electricity earliest is location A.
Embodiment 3
It corresponding to the above method, the present embodiment discloses a kind of transmission line forest fire sprawling behavior multistage correction system,
Including memory, processor and store the computer program that can be run on a memory and on a processor, the processor
The step of realizing above method embodiment when executing the computer program.
Optionally, the present embodiment system includes：
First program module, for obtaining the coordinate information and target transmission line information of the first original fire point；
Second program module, for obtaining the first fire point and spreading corresponding potential target according to the coordinate information
The geography information in region；
Third program module, for judging whether the first fire point can spread to the target according to the geography information
Transmission line of electricity, if it can, determining the described first fiery point according to the geography information of correspondence the first fire point and wind speed and direction information
The first sprawling track, and the classification step-length of the derivative next sprawling track in newborn sprawling track is set；
4th program module, when spreading to the range of the corresponding classification step-length for analyzing first sprawling track,
The fire point nearest with the target transmission line of electricity vertical range is calculated as the second fiery point of the second sprawling track, and according to corresponding institute
The geography information and wind speed and direction information of stating the second fire point determine the second sprawling track of the second fire point；Analyze described second
When sprawling track spreads to the range of the corresponding classification step-length, the present scope and described second from each sprawling track before
It spreads and the fire point nearest apart from the target transmission line of electricity vertical range is selected to spread track for third in the present scope of track
Third fire point, and determine the of the third fire point according to the geography information of the correspondence third fire point and wind speed and direction information
Three sprawling tracks；And so on, corresponding one new sprawling track of each classification step-length simultaneously carries out sprawling track before
Dynamically track spreads track respectively by simultaneous to be spread out recently by according to determination apart from the target transmission line of electricity vertical range
Then the fire point position for giving birth to a sprawling track calculates at first until any sprawling track spreads to the target transmission line of electricity
Reach the accumulation duration that the sprawling track of the target transmission line of electricity begins to extend away from the first fire point.
Embodiment 4
Similarly, the present embodiment discloses a kind of computer readable storage medium, is stored thereon with computer program, described program
The step of above method embodiment is realized when being executed by processor.
To sum up, transmission line forest fire disclosed in the various embodiments described above institute of the present invention difference sprawling the bearing calibration of behavior multistage,
Whether system and storage medium accurately can spread to power transmission line in the accurate computing electric power line mountain fire of Police Command Center
Road, while high precision computation transmission line forest fire spreads path, it is high to calculate accuracy rate for strong operability.According to transmission line of electricity mountain
Fire spread calculates conclusion, scientific can dispose, scheduling fire extinguishing equipment, realize the accurate reply of transmission line forest fire, reduction power transmission line
Loss caused by mountain fire near road.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of transmission line forest fire spreads the bearing calibration of behavior multistage, which is characterized in that including：
Obtain the coordinate information and target transmission line information of the first original fire point；
According to the coordinate information, the geography information that the first fire point spreads corresponding potential target region is obtained；
Judge whether the first fire point can spread to the target transmission line of electricity according to the geography information, if it can, according to
The geography information and wind speed and direction information of the corresponding first fire point determine the first sprawling track of the first fire point, and are arranged
The classification step-length of the derivative next sprawling track in new life sprawling track；
When analyzing first sprawling track and spreading to the range of the corresponding classification step-length, calculate and the target transmission line of electricity
The nearest fire point of vertical range for the second sprawling track the second fiery point, and according to the geography information of correspondence the second fire point and
Wind speed and direction information determines the second sprawling track of the second fire point；
When analyzing second sprawling track and spreading to the range of the corresponding classification step-length, from working as each sprawling track before
The fire nearest apart from the target transmission line of electricity vertical range is selected in the present scope of preceding range and second sprawling track
Point is the third fire point that third spreads track, and is determined according to the geography information of the correspondence third fire point and wind speed and direction information
The third of the third fire point spreads track；
And so on, the new sprawling track of each corresponding one of classification step-length and to sprawling track before carry out dynamic with
Track spreads track respectively by simultaneous to be recently next according to being derived with determination apart from the target transmission line of electricity vertical range
Then the fire point position for spreading track calculates until any sprawling track spreads to the target transmission line of electricity and reaches institute at first
State the accumulation duration that the sprawling track of target transmission line of electricity begins to extend away from the first fire point.
2. transmission line forest fire according to claim 1 spreads the bearing calibration of behavior multistage, which is characterized in that described first
It is to set circle region corresponding in radius with the first fire point for the center of circle that fire point, which spreads corresponding potential target region,.
3. transmission line forest fire according to claim 1 spreads the bearing calibration of behavior multistage, which is characterized in that respectively spread rail
Mark is put respectively using fire as focus and long axis is spread as wind direction and the elliptical path of slope aspect vector sum, and the long axis is
Forest fire appealing direction.
4. transmission line forest fire according to claim 3 spreads the bearing calibration of behavior multistage, which is characterized in that the classification
Step-length is that the long axis length of corresponding elliptical path spreads to specific length from zero.
5. transmission line forest fire according to any one of claims 1 to 4 spreads the bearing calibration of behavior multistage, which is characterized in that
When judging whether the first fire point can spread to the target transmission line of electricity according to the geography information, by the target area
Soil/vegetation pattern is that the type of city, river, highway, water body and ice is set as stopping the barrier of fire spreading in domain.
6. transmission line forest fire according to claim 5 spreads the bearing calibration of behavior multistage, which is characterized in that further include：
According to the spatial relation of all types of barriers between the first fire point and the target transmission line of electricity, in the mesh
It marks in region, the target transmission line of electricity is divided into the section that fire point can be spread to and the section that fire point cannot be spread to；With
And
Any sprawling track is spread into any fire and puts the section that can be spread to as the end time of the time duration.
7. a kind of transmission line forest fire sprawling behavior multistage corrects system, including memory, processor and it is stored in memory
Computer program that is upper and can running on a processor, which is characterized in that the processor executes real when the computer program
The step of existing 1 to 6 any the method for the claims.
8. transmission line forest fire sprawling behavior multistage according to claim 7 corrects system, which is characterized in that including：
First program module, for obtaining the coordinate information and target transmission line information of the first original fire point；
Second program module, for obtaining the first fire point and spreading corresponding potential target region according to the coordinate information
Geography information；
Third program module, for judging whether the first fire point can spread to the target and transmit electricity according to the geography information
Route, if it can, determining the of the first fire point according to the geography information of correspondence the first fire point and wind speed and direction information
One sprawling track, and the classification step-length of the derivative next sprawling track in newborn sprawling track is set；
4th program module calculates when spreading to the range of the corresponding classification step-length for analyzing first sprawling track
With the target transmission line of electricity vertical range nearest fire point for the second sprawling track the second fiery point, and according to correspondence described the
The geography information and wind speed and direction information of 2 fire points determine the second sprawling track of the second fire point；Analyze second sprawling
Present scope and second sprawling when track spreads to the range of the corresponding classification step-length, from each sprawling track before
It is the of third sprawling track that the fire point nearest apart from the target transmission line of electricity vertical range is selected in the present scope of track
3 fiery points, and determine that the third of the third fire point is climing according to the geography information of the correspondence third fire point and wind speed and direction information
Prolong track；And so on, corresponding one new sprawling track of each classification step-length simultaneously carries out dynamic to sprawling track before
Tracking spreads track respectively by simultaneous to be recently foundation apart from the target transmission line of electricity vertical range under determining derived
Then the fire point position of one sprawling track calculates and reaches at first until any sprawling track spreads to the target transmission line of electricity
The accumulation duration that the sprawling track of the target transmission line of electricity begins to extend away from the first fire point.
9. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that described program is by processor
The step of any the method for the claims 1 to 6 is realized when execution.
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