CN109377701A - The real-time early warning system and method for transmission line forest fire fire behavior development trend - Google Patents

The real-time early warning system and method for transmission line forest fire fire behavior development trend Download PDF

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Publication number
CN109377701A
CN109377701A CN201811269228.5A CN201811269228A CN109377701A CN 109377701 A CN109377701 A CN 109377701A CN 201811269228 A CN201811269228 A CN 201811269228A CN 109377701 A CN109377701 A CN 109377701A
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China
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fire
radar
mountain
mountain fire
thermal imaging
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曹永兴
李哲
朱军
郭钧天
苏少春
黎炎
吴驰
邓元实
薛志航
卜祥航
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State Grid Corp of China SGCC
Wuhan NARI Ltd
Electric Power Research Institute of State Grid Sichuan Electric Power Co Ltd
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State Grid Corp of China SGCC
Wuhan NARI Ltd
Electric Power Research Institute of State Grid Sichuan Electric Power Co Ltd
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Priority to CN201811269228.5A priority Critical patent/CN109377701A/en
Publication of CN109377701A publication Critical patent/CN109377701A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/005Fire alarms; Alarms responsive to explosion for forest fires, e.g. detecting fires spread over a large or outdoors area
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/12Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
    • G08B17/125Actuation 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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  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Fire Alarms (AREA)
  • Alarm Systems (AREA)

Abstract

The invention discloses the real-time early warning system and method for transmission line forest fire fire behavior development trend, which includes radar, two waveband thermal imaging camera and monitoring system;The radar and mountain fire target information on two waveband thermal imaging camera synchronous acquisition transmission line of electricity simultaneously send it to monitoring system;The monitoring system monitors the mountain fire target information on the transmission line of electricity obtained in real time and determines time on fire and place on fire according to mountain fire target information;The monitoring system obtains the mountain fire radar return of T moment mountain fire and thermal imaging information and judge fire behavior development trend to thermal imaging information according to the mountain fire radar return of T moment mountain fire and carry out related fire behavior information early warning notification;The present invention acquires transmission line of electricity data by radar and two waveband thermal imaging camera real-time synchronization and carries out real-time monitoring, timely early warning, convenient for instructing operation maintenance personnel to take counter-measure to mountain fire in time to mountain fire fire behavior.

Description

The real-time early warning system and method for transmission line forest fire fire behavior development trend
Technical field
The present invention relates to mountain fire monitoring technical fields, and in particular to the real-time early warning of transmission line forest fire fire behavior development trend System and method.
Background technique
As the continuous improvement to power supply reliability requirement is built in China's economic development, so that caused by because of power breakdown Influence increasingly can't stand.Transmission line of electricity is the aorta of power grid, is impacted to electric power netting safe running, especially in recent years To send out the Fast Construction of the important transmission lines of electricity such as route, transregional networking lines with ultra-high/extra-high voltage route, large-scale power supply, by Step forms that a collection of transmission capacity is big, important passway for transmitting electricity of dense arrangement, these channels break down after caused by power grid Impact and influence are bigger.Therefore, transmission line safety operation level is promoted, important passway for transmitting electricity is improved and withstands natural calamities and people Ability for destruction is always the most important thing of power grid security.However, for important passway for transmitting electricity, transmission distance is long, on the way Meteorological, complex geographical environment, some areas are uninhabited, difficult communication.This kind of unfavorable factor be easy to cause power grid because of severe day The tripping and failure of the routes external factor such as gas, mountain fire, external force destruction, and extreme difficulties are caused to Maintenance and Repair work.
In terms of passway for transmitting electricity mountain fire monitoring, since artificial field observation horizon range is very limited (about 2km), often at present Inspection is carried out using helicopter/unmanned plane or satellite remote sensing mode, however operator's ability is wanted in helicopter/unmanned plane inspection Ask high, person works' amount is big, and satellite remote sensing energy wide area detects fiery point, and it is limited by satellite transit time, cannot achieve real-time monitoring, The fiery point short to life cycle, cannot capture in time, and for fiery point of the heat radiation within hundred meters, monitoring effect is bad, it is difficult to Operation maintenance personnel is instructed to take counter-measure to mountain fire in time.
Summary of the invention
For solve the problems, such as it is above-mentioned propose in the prior art, the present invention provides the transmission line forest fires to solve the above problems The real-time early warning system and method for fire behavior development trend.
On the one hand, the present invention is achieved through the following technical solutions:
The real-time early warning system of transmission line forest fire fire behavior development trend, the system include that radar, two waveband thermal imaging are taken the photograph Camera and monitoring system;The two waveband thermal imaging camera is arranged on radar;
The radar and mountain fire target information on two waveband thermal imaging camera synchronous acquisition transmission line of electricity are simultaneously sent out Give monitoring system;The monitoring system monitors the mountain fire target information received in real time and is determined according to mountain fire target information Fiery time and place on fire;The monitoring system obtains the mountain fire radar return and thermal imaging information and when according to T of T moment mountain fire It carves the mountain fire radar return of mountain fire and thermal imaging information judges fire behavior development trend and carries out related fire behavior information early warning notification.
Preferably, the two waveband thermal imaging camera and radar be by the way of hard link linkage, and by using returning The mode of intensity of wave, speed and the joint judgement of echo corresponding points radiation energy, it is ensured that radar return and thermal imaging information are in the time With the consistency of spatial position.
Preferably, the monitoring system monitors the mountain fire target information received in real time and is determined according to mountain fire target information Time on fire and place on fire specifically:
The mountain fire target information on transmission line of electricity that monitoring system real time monitoring receives, when detecting radar return When, judge whether the radar echo intensity of mountain fire target is less than preset value A, if it is not, being then judged as without initial fire behavior;If so, The monitoring system transmission raises the control of radar antenna elevation signals and raises the radar antenna elevation angle, judges that transmission line of electricity is got angry later Whether the radar return height of mountain target is less than preset value B, if it is not, being then judged as precipitation or other echoes;If so, the prison Control system obtains the mountain fire target that radar return height is less than preset value B, and whether judges the mountain fire target radar returns intensity Less than preset value L and whether radar return velocity field is diffusion type variation, if it is not, being then judged as precipitation or other echoes;If so, Then it is judged as mountain fire radar return;The monitoring system obtains the thermal imaging information for being judged as mountain fire radar return synchronization, And judge whether the gray value of image after radiation energy conversion is higher than preset value M, if it is not, then continuing to monitor in real time;If so, Then it is judged as mountain fire, the monitoring system obtains the mountain fire radar return for being judged as mountain fire, determines time on fire and place on fire.
Preferably, the monitoring system obtains the mountain fire radar return and thermal imaging information and according to the T moment of T moment mountain fire The mountain fire radar return of mountain fire judges fire behavior development trend to thermal imaging information and carries out related fire behavior information early warning specifically:
The monitoring system judges that whether is the radar echo intensity of the mountain fire radar return of t moment compared to the t-1 moment Become larger, whether radar return velocity field shows as divergence and the radiation energy of thermal imaging conversion after gray value of image whether become Greatly, if so, being judged as that fire behavior develops, and related fire behavior early warning notification is carried out;If it is not, then it is judged as that fire behavior is steady or weakens, And carry out related fire behavior early warning notification, wherein t=(0, T].
On the other hand, the invention also provides the real time early warning method of transmission line forest fire fire behavior development trend, this method The following steps are included:
Step 1: simultaneously using the mountain fire target information on radar and two waveband thermal imaging camera synchronous acquisition transmission line of electricity Send it to monitoring system, the monitoring system obtains the radar return information of the collected mountain fire target of radar and double in real time The thermal imaging information of the collected mountain fire target of wave band thermal imaging camera;
Step 2: mountain fire target information and root on the transmission line of electricity obtained in the monitoring system real time monitoring step 1 Time on fire and place on fire are determined according to mountain fire target information;
Step 3: the mountain fire radar return and thermal imaging information of the T moment mountain fire of the monitoring system obtaining step two are simultaneously Fire behavior development trend is judged to thermal imaging information according to the mountain fire radar return of T moment mountain fire and carries out related fire behavior information early warning Notification.
Preferably, the step 2 specifically includes the following steps:
Step 2.1 monitor in real time a kind of transmission line of electricity of acquisition of step on mountain fire target information, when detect radar return When wave, judge whether the radar echo intensity of mountain fire target is less than preset value A, if it is not, be then judged as without initial fire behavior, if so, Then enter step 2.2;
After step 2.2 raises radar antenna elevation signals and raises the radar antenna elevation angle by monitoring system transmission, judgement Whether the radar return height of volcano target is less than preset value B on transmission line of electricity, if it is not, then it is judged as precipitation or other echoes, If so, entering step 2.3;
Radar return height is less than the mountain fire target of preset value B in step 2.3 obtaining step 2.2, judges the mountain fire target Whether radar echo intensity is less than preset value L, and radar return velocity field is no for diffusion type variation;If it is not, being then judged as precipitation Or other echoes enter step 2.4 if so, being judged as mountain fire radar return;
It is judged as the information of the thermal imaging of mountain fire radar return synchronization in step 2.4 obtaining step 2.3;Judgement radiation Whether the gray value of image after energy conversion is higher than preset value M, if it is not, then return step two, continue real-time monitoring;If so, It is judged as mountain fire, enters step 2.5;
It is judged as the mountain fire radar return of mountain fire in step 2.5 obtaining step 2.4, determines time on fire and place on fire.
Preferably, in the step 2.5, when the time on fire is that the current time of the mountain fire radar return subtracts default Between, the place on fire is to add up radar echo intensity maximum in N number of mountain fire radar return.
Preferably, the step 3 specifically includes the following steps:
The mountain fire radar return and thermal imaging information at T moment place on fire in step 3.1 obtaining step two;
Step 3.2 judges compared to the t-1 moment, whether the radar echo intensity of the mountain fire radar return of t moment become larger, Whether the gray value of image whether radar return velocity field shows as after the radiation energy conversion of divergence and thermal imaging becomes larger; If so, being judged as that fire behavior develops, and carry out related fire behavior early warning notification;If it is not, being then judged as that fire behavior is steady or weakens, go forward side by side It is returned after row correlation fire behavior early warning notification;Wherein, t=(0, T].
Preferably, the two waveband thermal imaging camera and radar be by the way of Hard link linkage, and by using returning The mode of intensity of wave, speed and the joint judgement of echo corresponding points radiation energy, it is ensured that radar return and thermal imaging information are in the time With the consistency of spatial position.
Preferably, the initial elevation of radar antenna is set as 0.5 degree or 1.5 degree in the step 1;The preset value A takes Value 35dBZ, described 5 kilometers of preset value B value, the preset value M value 45, the preset value L value 35dBZ.
The present invention has the advantage that and the utility model has the advantages that
1, the present invention is by the mountain fire information on radar offer transmission line of electricity, and using two waveband thermal imaging camera as auxiliary Detection is helped, the high-resolution Thermo-imaging system in doubtful mountain fire region is mainly acquired, by image recognition mode, is completed to transmission line of electricity The further fine detection in mountain fire region improves the accuracy of mountain fire detection, helps to ensure that stablizing for important passway for transmitting electricity is transported Row.
2, the present invention is by radar and two waveband thermal imaging camera real-time synchronization acquisition transmission line of electricity data and to mountain fire Fire behavior carries out real-time monitoring, timely early warning, convenient for instructing operation maintenance personnel to take counter-measure to mountain fire in time.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is flow diagram of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made For limitation of the invention.
Embodiment
Present embodiments provide the real-time early warning system of transmission line forest fire fire behavior development trend, the system include radar, Two waveband thermal imaging camera and monitoring system;The two waveband thermal imaging camera is arranged on radar;In the present embodiment, The two waveband thermal imaging camera and radar by using echo strength, speed and are returned by the way of hard link linkage The mode of wave corresponding points radiation energy joint judgement, it is ensured that radar return is consistent with spatial position in the time with thermal imaging information Property.
In the present embodiment, the two waveband thermal imaging camera is double spectrum cameras, the model of double spectrum cameras TTVC4516-2075KHM-IP(PT);The model WHNR-SHLD-1000 of the radar;
In the present embodiment, radar completes the identification of mountain fire, prison by particulate matters such as flue dust of monitoring mountain fire burning generation It is identical with the monitoring of precipitation particles to survey principle, therefore the radar intensity echo strength can be obtained according to radar weather equation formula, institute State radar weather equation formula are as follows:
In formula, Pr is the average value (W) for the echo power that radar receives;Pt is radar transmitted pulse power (W);Ge It is the actual gain of radar antenna;θ,It is the horizontal beam width and vertical beam width (radian) of antenna respectively;τ is transmitting Pulse width (s);λ is radar operation wavelength (m);C is electromagnetic wave propagation speed 3 × 108 (m/s);ψ is precipitation area entire Substantial coefficient in space composed by radar beam width and pulse interval length (1/2 τ c);K is electromagnetic wave in spatial When decay factor;M is the complex refractive index of rainwater;R is the distance (m) of target;Z is radar echo intensity;Ln2 is oneself of 2 Right logarithm, takes 0.69315.
The radar and mountain fire target information on two waveband thermal imaging camera synchronous acquisition transmission line of electricity are simultaneously sent out Give monitoring system;In the present embodiment, the mountain fire target information on the transmission line of electricity includes the collected mountain fire target of radar Radar return information and two waveband thermal imaging camera acquisition mountain fire target thermal imaging information.
The mountain fire target information on transmission line of electricity that monitoring system real time monitoring receives, when detecting radar return When, judge whether the radar echo intensity of mountain fire target is less than preset value A, if it is not, being then judged as without initial fire behavior;If so, The monitoring system transmission raises the control of radar antenna elevation signals and raises the radar antenna elevation angle, judges that transmission line of electricity is got angry later Whether the radar return height of mountain target is less than preset value B, if it is not, being then judged as precipitation or other echoes;If so, the prison Control system obtains the mountain fire target that radar return height is less than preset value B, and whether judges the mountain fire target radar returns intensity Less than preset value L and whether radar return velocity field is diffusion type variation, if it is not, being then judged as precipitation or other echoes;If so, Then it is judged as mountain fire radar return;The monitoring system obtains the thermal imaging information for being judged as mountain fire radar return synchronization, And judge whether the gray value of image after radiation energy conversion is higher than preset value M, if it is not, then continuing to monitor in real time;If so, Then it is judged as mountain fire, the monitoring system obtains the mountain fire radar return for being judged as mountain fire, determines time on fire and place on fire.
The monitoring system obtains the mountain fire radar return and thermal imaging information of T moment mountain fire;When judging compared to t-1 It carves, whether the radar echo intensity of the mountain fire radar return of t moment becomes larger, whether radar return velocity field shows as divergence and heat Whether the gray value of image after the radiation energy conversion of imaging becomes larger, if so, being judged as that fire behavior develops, and carries out related fire behavior Early warning notification;If it is not, being then judged as that fire behavior is steady or weakens, and carry out related fire behavior early warning notification, wherein t=(0, T].
The specific workflow of the real-time early warning system of the transmission line forest fire fire behavior development trend of the present embodiment is as follows:
Step 1: carrying out real-time volume scanning, and the double wave by being arranged on radar on the transmission line using radar Section thermal imaging camera, which synchronizes, is acquired data, and sends jointly to monitoring system, and monitoring system obtains radar acquisition in real time To mountain fire target radar return information and two waveband thermal imaging camera collect mountain fire target thermal imaging information, Up to the mountain fire target information on transmission line of electricity;Wherein, the initial elevation of the radar antenna is set as 0.5 degree or 1.5 degree.
Step 2: the mountain fire target in monitoring system real time monitoring step 1 on the transmission line of electricity that obtains, when detecting thunder When up to echo, judge whether the radar echo intensity of mountain fire target is less than preset value A, if it is not, be then judged as without initial fire behavior, if It is then to enter step three;Wherein, the preset value A is preferably 35dBZ.
Step 3: after raising radar antenna elevation signals by monitoring system transmission and raise the radar antenna elevation angle, judgement Whether the radar return height of volcano target is less than preset value B on transmission line of electricity, if it is not, then it is judged as precipitation or other echoes, If so, entering step four;Wherein, the preset value B is preferably 5 kilometers.
Step 4: radar return height is less than the mountain fire target of preset value B in obtaining step three, the mountain fire target thunder is judged Whether it is less than preset value L up to echo strength, and whether radar return velocity field is diffusion type variation;If it is not, being then judged as precipitation Or other echoes enter step five if so, being judged as mountain fire radar return;Wherein, the preset value L is preferably 35dBZ; The judgment method of the diffusion type variation is that radar return velocity field shows as divergence feature on doppler velocity field.
Step 5: being judged as the information of the thermal imaging of mountain fire radar return synchronization (using echo in invocation step four The mode of intensity, speed and the joint judgement of echo corresponding points radiation energy);Judging the gray value of image after radiation energy is converted is It is no to be higher than preset value M, if it is not, then return step two, continue real-time monitoring;If so, being judged as mountain fire, six are entered step;Its In, the preset value M is preferably 45.
Step 6: being judged as the mountain fire radar return of mountain fire in obtaining step five, time on fire and place on fire are determined;Its In, the time on fire is that the current time of the mountain fire radar return subtracts preset time, and the preset time is 2- 15min, the place on fire are to add up radar echo intensity maximum in N number of mountain fire radar return.
Step 7: mountain fire radar return and thermal imaging information at T moment place on fire in obtaining step six;
Compared to the t-1 moment, judge whether the radar echo intensity of the mountain fire radar return of t moment becomes larger, radar returns Whether the gray value of image whether wave velocity field shows as after the radiation energy conversion of divergence and thermal imaging becomes larger;If so, It is judged as that fire behavior develops, and carries out related fire behavior early warning notification;If it is not, being then judged as that fire behavior is steady or weakens, and carry out correlation It is returned after fire behavior early warning notification;Wherein, t=(0, T].
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include Within protection scope of the present invention.

Claims (10)

1. the real-time early warning system of transmission line forest fire fire behavior development trend, which is characterized in that the system includes radar, two waveband Thermal imaging camera and monitoring system;The two waveband thermal imaging camera is arranged on radar;
The radar and mountain fire target information on two waveband thermal imaging camera synchronous acquisition transmission line of electricity are simultaneously sent it to Monitoring system;When the monitoring system monitors the mountain fire target information received in real time and determines on fire according to mountain fire target information Between and place on fire;The monitoring system obtains the mountain fire radar return and thermal imaging information and according to the moment mountain T of T moment mountain fire The mountain fire radar return of fire judges fire behavior development trend to thermal imaging information and carries out related fire behavior information early warning notification.
2. the real-time early warning system of transmission line forest fire fire behavior development trend according to claim 1, which is characterized in that institute Two waveband thermal imaging camera and radar are stated by the way of hard link linkage, and by using echo strength, speed and echo The mode of corresponding points radiation energy joint judgement, it is ensured that radar return is consistent with spatial position in the time with thermal imaging information Property.
3. the real-time early warning system of transmission line forest fire fire behavior development trend according to claim 1, which is characterized in that institute It states the monitoring system mountain fire target information that receives of real time monitoring and time on fire and on fire is determined according to mountain fire target information Point specifically:
The mountain fire target information on transmission line of electricity that the monitoring system real time monitoring receives, when detecting radar return, Judge whether the radar echo intensity of mountain fire target is less than preset value A, if it is not, being then judged as without initial fire behavior;If so, described Monitoring system transmission raises the control of radar antenna elevation signals and raises the radar antenna elevation angle, judges volcano mesh on transmission line of electricity later Whether target radar return height is less than preset value B, if it is not, being then judged as precipitation or other echoes;If so, the monitoring system System obtains the mountain fire target that radar return height is less than preset value B, and judges whether the mountain fire target radar returns intensity is less than Whether preset value L and radar return velocity field are diffusion type variation, if it is not, being then judged as precipitation or other echoes;If so, sentencing Break as mountain fire radar return;The monitoring system obtains the thermal imaging information for being judged as mountain fire radar return synchronization, and sentences Whether the gray value of image after disconnected radiation energy conversion is higher than preset value M, if it is not, then continuing to monitor in real time;If so, sentencing Break as mountain fire, the monitoring system obtains the mountain fire radar return for being judged as mountain fire, determines time on fire and place on fire.
4. the real-time early warning system of transmission line forest fire fire behavior development trend according to claim 1, which is characterized in that institute State monitoring system obtain T moment mountain fire mountain fire radar return and thermal imaging information and according to the mountain fire radar of T moment mountain fire return Wave judges fire behavior development trend to thermal imaging information and carries out related fire behavior information early warning specifically:
The monitoring system judges compared to the t-1 moment, whether the radar echo intensity of the mountain fire radar return of t moment become larger, Whether the gray value of image whether radar return velocity field shows as after the radiation energy conversion of divergence and thermal imaging becomes larger, if It is then to be judged as that fire behavior develops, and carry out related fire behavior early warning notification;If it is not, being then judged as that fire behavior is steady or weakens, and carry out Related fire behavior early warning notification, wherein t=(0, T].
5. the real time early warning method of transmission line forest fire fire behavior development trend, which is characterized in that method includes the following steps:
Step 1: using the mountain fire target information on radar and two waveband thermal imaging camera synchronous acquisition transmission line of electricity and by its It is sent to monitoring system, the monitoring system obtains the radar return information and two waveband of the collected mountain fire target of radar in real time The thermal imaging information of the collected mountain fire target of thermal imaging camera;
Step 2: the monitoring system monitors the mountain fire target information on the transmission line of electricity obtained in step 1 in real time and according to mountain Fiery target information determines time on fire and place on fire;
Step 3: the mountain fire radar return and thermal imaging information of the T moment mountain fire of the monitoring system obtaining step two and according to T The mountain fire radar return of moment mountain fire judges fire behavior development trend to thermal imaging information and carries out related fire behavior information early warning notification.
6. the real time early warning method of transmission line forest fire fire behavior development trend according to claim 5, which is characterized in that institute State step 2 specifically includes the following steps:
Step 2.1 monitors the mountain fire target information on a kind of transmission line of electricity of acquisition of step in real time, when detecting radar return, Judge whether the radar echo intensity of mountain fire target is less than preset value A, if it is not, be then judged as without initial fire behavior, if so, into Step 2.2;
After step 2.2 raises radar antenna elevation signals and raise the radar antenna elevation angle by monitoring system transmission, judge to transmit electricity Whether the radar return height of volcano target is less than preset value B on route, if it is not, then it is judged as precipitation or other echoes, if so, Then enter step 2.3;
Radar return height is less than the mountain fire target of preset value B in step 2.3 obtaining step 2.2, judges the mountain fire target radar Whether echo strength is less than preset value L, and radar return velocity field is no for diffusion type variation;If it is not, be then judged as precipitation or its Its echo enters step 2.4 if so, being judged as mountain fire radar return;
It is judged as the information of the thermal imaging of mountain fire radar return synchronization in step 2.4 obtaining step 2.3;Judge radiation energy Whether the gray value of image after conversion is higher than preset value M, if it is not, then return step two, continue real-time monitoring;If so, judgement For mountain fire, 2.5 are entered step;
It is judged as the mountain fire radar return of mountain fire in step 2.5 obtaining step 2.4, determines time on fire and place on fire.
7. the real time early warning method of transmission line forest fire fire behavior development trend according to claim 6, which is characterized in that institute It states in step 2.5, the time on fire is that the current time of the mountain fire radar return subtracts preset time, and the place on fire is tired Count radar echo intensity maximum in N number of mountain fire radar return.
8. the real time early warning method of transmission line forest fire fire behavior development trend according to claim 5, which is characterized in that institute State step 3 specifically includes the following steps:
The mountain fire radar return and thermal imaging information at T moment place on fire in step 3.1 obtaining step two;
Step 3.2 judges compared to the t-1 moment, and whether the radar echo intensity of the mountain fire radar return of t moment become larger, radar Whether the gray value of image whether echo wave speed field shows as after the radiation energy conversion of divergence and thermal imaging becomes larger;If so, Then it is judged as that fire behavior develops, and carries out related fire behavior early warning notification;If it is not, being then judged as that fire behavior is steady or weakens, and carry out phase It is returned after closing fire behavior early warning notification;Wherein, t=(0, T].
9. the real time early warning method of transmission line forest fire fire behavior development trend according to claim 5, which is characterized in that institute Two waveband thermal imaging camera and radar are stated by the way of Hard link linkage, and by using echo strength, speed and echo The mode of corresponding points radiation energy joint judgement, it is ensured that radar return is consistent with spatial position in the time with thermal imaging information Property.
10. the real time early warning method of transmission line forest fire fire behavior development trend according to claim 6, which is characterized in that The initial elevation of radar antenna is set as 0.5 degree or 1.5 degree in the step 1;The preset value A value 35dBZ, it is described pre- If 5 kilometers of value B value, the preset value M value 45, the preset value L value 35dBZ.
CN201811269228.5A 2018-10-29 2018-10-29 The real-time early warning system and method for transmission line forest fire fire behavior development trend Pending CN109377701A (en)

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CN110907927A (en) * 2019-11-26 2020-03-24 国网山西省电力公司电力科学研究院 System and method for automatically positioning and monitoring forest fire target
CN112634567A (en) * 2020-12-17 2021-04-09 深圳市金安宏安全技术咨询有限公司 Fire alarm method and device
CN112949515A (en) * 2021-03-09 2021-06-11 国网四川省电力公司电力科学研究院 Line forest fire early warning method and system based on monitoring information
CN115223325A (en) * 2022-07-07 2022-10-21 深圳市环宇星科技有限公司 AI camera capable of identifying fire and control system thereof

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CN110907927A (en) * 2019-11-26 2020-03-24 国网山西省电力公司电力科学研究院 System and method for automatically positioning and monitoring forest fire target
CN112634567A (en) * 2020-12-17 2021-04-09 深圳市金安宏安全技术咨询有限公司 Fire alarm method and device
CN112634567B (en) * 2020-12-17 2024-01-30 深圳市金安宏安全技术咨询有限公司 Fire alarm method and device
CN112949515A (en) * 2021-03-09 2021-06-11 国网四川省电力公司电力科学研究院 Line forest fire early warning method and system based on monitoring information
CN112949515B (en) * 2021-03-09 2022-07-08 国网四川省电力公司电力科学研究院 Line forest fire early warning method and system based on monitoring information
CN115223325A (en) * 2022-07-07 2022-10-21 深圳市环宇星科技有限公司 AI camera capable of identifying fire and control system thereof

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Application publication date: 20190222