CN101950461A - Remote ground infrared automatic forest fire detection system and detection method thereof - Google Patents
Remote ground infrared automatic forest fire detection system and detection method thereof Download PDFInfo
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Abstract
The invention relates to a remote ground infrared automatic forest fire detection system and a detection method thereof and belongs to the field of fire alarm monitoring. The invention solves the problem that the fire is covered by dense smoke and the problem that the fire occurs at night cannot be precisely positioned in the prior art. A thermal imager thereof is fixed on the revolving stage of a holder, the signal acquiring control output end of an FPGA control module controls the thermal imager to acquire image, and the thermal imager outputs acquired fire alarm image to the FPGA control module; the orientation control input and output end of the FPGA control module controls the orientation of the holder; the FPGA control module, a data memory and a program memory are connected through data address buses; the data input and output end of the FPGA control module outputs the fire alarm image to a DSP module, the second data input and output end of the DSP module is connected with the first input and output end of a wireless modem module, and the second input and output end of the wireless modem module is connected with the input and output end of a signal emission vehicle station. The invention is used for detecting forest fires.
Description
Technical field
The present invention relates to automatic detection system of the infrared forest fires of a kind of remote ground and detection method thereof, belong to fire alarm monitoring field.
Background technology
Forest fire is because of having sudden and randomness, and may cause tremendous loss at short notice.Macroscopical remote sensing monitoring of Pei He observation tower fire monitoring and weather satellite is mainly taken in traditional forest fires monitoring as the leading factor with weather forecast.In recent years, forest fire protection microwave television Yuan Cheng lookout monitoring system has appearred, this system is installed in visible light camera on fire prevention Guan Cha observation tower and the towering buildings, and it overcomes, and observation tower employing manual observation very easily causes the observation neutral gear or because observer's subjective factor causes the inaccurate defective of monitoring result.But, still can not carry out early warning timely, and kindling point is located accurately and reliably for the condition of a fire that dense smoke hides and takes place in night.
Summary of the invention
The objective of the invention is provides automatic detection system of the infrared forest fires of a kind of remote ground and detection method thereof in order to solve the problem that prior art hides for dense smoke and the condition of a fire that takes place in night can not accurately be located.
Detection system of the present invention comprises The Cloud Terrace, thermal imaging system, FPGA control module, data-carrier store, program storage, DSP module, wireless modem module and signal emission vehicle radio station, and thermal imaging system is fixed on the universal stage of The Cloud Terrace,
The acquired signal control output end of FPGA control module connects the acquired signal control input end of thermal imaging system, and the acquired signal output terminal of thermal imaging system connects the acquired signal input end of FPGA control module;
The direction control input/output terminal of FPGA control module connects the direction control I/O of The Cloud Terrace;
FPGA control module, data-carrier store and program storage are connected by data address bus;
The data input/output terminal of FPGA control module connects the first data I/O of DSP module, the second data I/O of DSP module connects first input/output terminal of wireless modem module, and second input/output terminal of wireless modem module connects the I/O of signal emission vehicle radio station.
Adopt said system to realize the method that the infrared forest fires of remote ground are surveyed automatically, described method is:
Step 1: the FPGA control module is given The Cloud Terrace by direction control input/output terminal output order, and the information acquisition end that makes the thermal imaging system on the The Cloud Terrace is according to direction that presets and angle acquisition signal; The acquired signal control output end output order of FPGA control module is given thermal imaging system simultaneously, makes thermal imaging system begin to gather the fire alarm image in the forest zone of monitoring;
Step 2: thermal imaging system is exported to the FPGA control module with the fire alarm image of being gathered by the acquired signal output terminal, and the FPGA control module is exported to data-carrier store with the fire alarm image that obtains by data address bus; Simultaneously, the FPGA control module is also exported to the DSP module with the fire alarm image that obtains;
Advantage of the present invention is: the present invention is applicable to the forest fire monitoring in the subrange, it is under the immovable situation of existing fire watch tower net, make major forest areas fire prevention department can in time survey the ground forest fires and carry out the transmission of long-range fire alarm image and data, by the fire alarm image that thermal imaging system is gathered, can determine position, the scene of a fire fast and accurately.For the prevention of forest fire with put out a fire to save life and property decision-making foundation is provided, by reporting to the police timely, taking effective measures, forest fire eliminated send out stage, the heavy losses of having avoided forest fire to cause just.
The present invention can accurately differentiate the forest fires target: gather the fire alarm image by thermal imaging system, and image handled, from complicated background, the fire alarm target is differentiated out, can overcome that electronic noise disturbs and background heat is unusual, as the road that is heated, ridge that the temperature difference is big etc., the false-alarm that is caused.Hide and the condition of a fire that takes place in night can accurate in locating for dense smoke.
The present invention is tracking target rapidly: after searching the forest fires target, can accurately determine to continue then the forest fires target following forest fires target location.Thermal imaging system can see through the infrared image that dense smoke obtains kindling point, and it in time passes fire alarm information, helps in time grasping the developments of fire alarm.
Description of drawings
Fig. 1 is a control flow block diagram of the present invention; Fig. 2 is the composition frame chart of wireless modem module; Fig. 3 is the process flow diagram of the inventive method.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1 and Fig. 2, the automatic detection system of the infrared forest fires of the described remote ground of present embodiment comprises The Cloud Terrace 1, thermal imaging system 2, FPGA control module 3, data-carrier store 6, program storage 7, DSP module 8, wireless modem module 9 and signal emission vehicle radio station 10, thermal imaging system 2 is fixed on the universal stage of The Cloud Terrace 1
The acquired signal control output end of FPGA control module 3 connects the acquired signal control input end of thermal imaging system 2, and the acquired signal output terminal of thermal imaging system 2 connects the acquired signal input end of FPGA control module 3;
The direction control input/output terminal of FPGA control module 3 connects the direction control I/O of The Cloud Terrace 1;
The data input/output terminal of FPGA control module 3 connects the first data I/O of DSP module 8, the second data I/O of DSP module 8 connects first input/output terminal of wireless modem module 9, and second input/output terminal of wireless modem module 9 connects the I/O of signal emission vehicle radio station 10.
Program storage 7 is used to store the program that presets in the present embodiment.
Embodiment two: present embodiment is described below in conjunction with Fig. 1, the difference of present embodiment and the automatic detection system of the embodiment infrared forest fires of one described remote ground is, it also comprises VGA module 5, and the demonstration control output end of FPGA control module 3 connects the demonstration control input end of VGA module 5.Other composition and annexation are identical with embodiment one.
Present embodiment has increased VGA module 5, and it can show the image that thermal imaging system 2 collects in real time.
Embodiment three: present embodiment is described below in conjunction with Fig. 1, the difference of present embodiment and embodiment one or the automatic detection system of the infrared forest fires of two described remote grounds is, it also comprises FPGA transport module 4 and wireless transmit AP module 11, the acquired signal output terminal of thermal imaging system 2 connects the acquired signal input end of FPGA transport module 4, and the output terminal of FPGA transport module 4 connects the input end of wireless transmit AP module 11.Other composition and annexation are identical with embodiment one or two.
The workflow of the FPGA transport module 4 that present embodiment increased is: FPGA transport module 4 obtains the fire alarm image that thermal imaging system 2 is gathered by the acquired signal input end, by output terminal the fire alarm image is transferred to wireless transmit AP module 11 then.
Embodiment four: present embodiment is described below in conjunction with Fig. 1, the difference of present embodiment and the automatic detection system of the embodiment infrared forest fires of three described remote grounds is, it comprises that also signal receives vehicle radio station 12 and wireless receiving AP module 13, and signal receives the signal that vehicle radio station 12 is used for 10 emissions of received signal emission vehicle radio station; Wireless receiving AP module 13 is used to receive the signal of wireless transmit AP module 11 emissions.Other composition and annexation are identical with embodiment three.
The multiple technologies scheme of the automatic detection system of the infrared forest fires of above-mentioned remote ground provided by the invention can realize autoscan, detection and tracking forest fire, and the fire alarm image is judged, stored and transmits.For realizing the bridge joint of control point farthest, can between 2 o'clock, seek one with 2 relay points that can both accessiblely communicate by letter to realize the relaying of signal.
The present invention can constitute the unattended surveillance station, round-the-clock work double tides with user's radio transmitter or WLAN devices.Utilize a plurality of monitoring stations to constitute monitoring net, when the condition of a fire or high temperature occurring in the monitored area, send alerting signal by short-wave radio set or WLAN (wireless local area network), the content of alerting signal comprises the degree and the absolute azimuth of the condition of a fire.Radiothermy radio station, Forest Fire Prevention Direction center or WLAN devices can receive the teledata of monitoring station or monitoring net.
The workflow of the automatic detection system of the infrared forest fires of remote ground of the present invention:
The composition of wireless modem module 9 as shown in Figure 2, modulator-demodular unit can be selected MSM6882 for use among Fig. 2, the first microprocessor and second microprocessor all can be selected AT89C55 for use, phase-locked frequency discriminator can be selected LM567 for use.Its wireless data transmission has two kinds of patterns available:
The note transmission mode: utilize communication interface, the forest fires communication network of forming by ultrashort wave radio set and shortwave unilateral-band broadcasting-station, with fiery condition alarm and record orientation, range data with the radio long-distance transmissions to office of fire prevention directorate.And can directly control the The Cloud Terrace 1 and the thermal imaging system 2 of front end.
Image transfer mode: on the wireless network connection basis of the image delivering system of front end by Ethernet interface on the DSP module 8 and wireless bridge welding system structure, realize the image transmission.2.4G wireless bridge is based on the 802.11b wireless communication protocol.The bridge joint distance can reach 20 kilometers farthest, and 4M is provided effective bandwidth, can guarantee that multichannel adopts the video flowing of MPEG4 compression.
Embodiment five: below in conjunction with Fig. 1, Fig. 2 and Fig. 3 present embodiment is described, present embodiment is based on embodiment one described system and realizes the method that the infrared forest fires of remote ground are surveyed automatically, and described method is:
Step 1: FPGA control module 3 is given The Cloud Terrace 1 by direction control input/output terminal output order, and the information acquisition end that makes the thermal imaging system 2 on the The Cloud Terrace 1 is according to direction that presets and angle acquisition signal; The acquired signal control output end output order of FPGA control module 3 is given thermal imaging system 2 simultaneously, makes thermal imaging system 2 begin to gather the fire alarm image in the forest zone of monitoring;
Step 2: thermal imaging system 2 is exported to FPGA control module 3 with the fire alarm image of being gathered by the acquired signal output terminal, and FPGA control module 3 is exported to data-carrier store 6 with the fire alarm image that obtains by data address bus; Simultaneously, FPGA control module 3 is also exported to DSP module 8 with the fire alarm image that obtains;
The fire alarm image that step 3,8 pairs of DSP modules receive carries out analysis and judgement, obtains the result of whether breaking out of fire, and sends the cradle head control signal according to described result and give FPGA control module 3, adjusts the orientation of thermal imaging system 2 images acquired; Also fire alarm image and described result are sent to signal emission vehicle radio station 10 by wireless modem module 9 simultaneously, described signal emission vehicle radio station 10 adopts wireless mode broadcasting to send the signal that receives; Return execution in step two then.
Embodiment six: present embodiment is further specifying the automatic method of surveying of the infrared forest fires of embodiment five described remote grounds, the fire alarm image that 8 pairs of described DSP modules receive carries out analysis and judgement, obtain the result of whether breaking out of fire, and send the cradle head control signal according to described result and give FPGA control module 3, the method for adjusting the orientation of thermal imaging system 2 images acquired is:
8 pairs of fire alarm images of DSP module carry out gray scale processing, denoising, filtering and marginalisation, gray-scale value with the fire alarm image compares with the gray threshold that presets then, if the gray-scale value of fire alarm image is greater than the gray threshold that presets, showing has the condition of a fire to take place, at this moment, DSP module 8 is according to the position of condition of a fire point in the fire alarm image, output cradle head control signal is given FPGA control module 3, FPGA control module 3 is adjusted the orientation of The Cloud Terrace according to described signal, described condition of a fire point is moved to the center of fire alarm image, realize the monitoring point is continued to follow the tracks of; If smaller or equal to the gray threshold that presets, showing, the gray-scale value of fire alarm image do not have the condition of a fire to take place.
Claims (6)
1. automatic detection system of the infrared forest fires of remote ground, it is characterized in that: it comprises The Cloud Terrace (1), thermal imaging system (2), FPGA control module (3), data-carrier store (6), program storage (7), DSP module (8), wireless modem module (9) and signal emission vehicle radio station (10), thermal imaging system (2) is fixed on the universal stage of The Cloud Terrace (1)
The acquired signal control output end of FPGA control module (3) connects the acquired signal control input end of thermal imaging system (2), and the acquired signal output terminal of thermal imaging system (2) connects the acquired signal input end of FPGA control module (3);
The direction control input/output terminal of FPGA control module (3) connects the direction control I/O of The Cloud Terrace (1);
FPGA control module (3), data-carrier store (6) and program storage (7) are connected by data address bus;
The data input/output terminal of FPGA control module (3) connects the first data I/O of DSP module (8), the second data I/O of DSP module (8) connects first input/output terminal of wireless modem module (9), and second input/output terminal of wireless modem module (9) connects the I/O of signal emission vehicle radio station (10).
2. the automatic detection system of the infrared forest fires of remote ground according to claim 1 is characterized in that: it also comprises VGA module (5), and the demonstration control output end of FPGA control module (3) connects the demonstration control input end of VGA module (5).
3. the automatic detection system of the infrared forest fires of remote ground according to claim 1 and 2, it is characterized in that: it also comprises FPGA transport module (4) and wireless transmit AP module (11), the acquired signal output terminal of thermal imaging system (2) connects the acquired signal input end of FPGA transport module (4), and the output terminal of FPGA transport module (4) connects the input end of wireless transmit AP module (11).
4. the automatic detection system of the infrared forest fires of remote ground according to claim 3, it is characterized in that: it comprises that also signal receives vehicle radio station (12) and wireless receiving AP module (13), and signal receives the signal that vehicle radio station (12) is used for received signal emission vehicle radio station (10) emission; Wireless receiving AP module (13) is used to receive the signal of wireless transmit AP module (11) emission.
5. one kind is adopted the automatic detection system of the infrared forest fires of the described remote ground of claim 1 to realize the method that the infrared forest fires of remote ground are surveyed automatically, and it is characterized in that: described method is:
Step 1: FPGA control module (3) is given The Cloud Terrace (1) by direction control input/output terminal output order, and the information acquisition end that makes the thermal imaging system (2) on the The Cloud Terrace (1) is according to direction that presets and angle acquisition signal; The acquired signal control output end output order of FPGA control module (3) is given thermal imaging system (2) simultaneously, makes thermal imaging system (2) begin to gather the fire alarm image in the forest zone of monitoring;
Step 2: thermal imaging system (2) is exported to FPGA control module (3) with the fire alarm image of being gathered by the acquired signal output terminal, and FPGA control module (3) is exported to data-carrier store (6) with the fire alarm image that obtains by data address bus; Simultaneously, FPGA control module (3) is also exported to DSP module (8) with the fire alarm image that obtains;
Step 3, DSP module (8) are carried out analysis and judgement to the fire alarm image that receives, and obtain the result of whether breaking out of fire, and send the cradle head control signal according to described result and give FPGA control module (3), adjust the orientation of thermal imaging system (2) images acquired; Also fire alarm image and described result are sent to signal emission vehicle radio station (10) by wireless modem module (9) simultaneously, described signal emission vehicle radio station (10) adopts wireless mode broadcasting to send the signal that receives; Return execution in step two then.
6. the method that the infrared forest fires of remote ground according to claim 5 are surveyed automatically, it is characterized in that: DSP module (8) is carried out analysis and judgement to the fire alarm image that receives, obtain the result of whether breaking out of fire, and send the cradle head control signal according to described result and give FPGA control module (3), the method for adjusting the orientation of thermal imaging system (2) images acquired is:
DSP module (8) is carried out gray scale processing, denoising, filtering and marginalisation to the fire alarm image, gray-scale value with the fire alarm image compares with the gray threshold that presets then, if the gray-scale value of fire alarm image is greater than the gray threshold that presets, showing has the condition of a fire to take place, at this moment, DSP module (8) is according to the position of condition of a fire point in the fire alarm image, output cradle head control signal is given FPGA control module (3), FPGA control module (3) is adjusted the orientation of The Cloud Terrace according to described signal, described condition of a fire point is moved to the center of fire alarm image, realize the monitoring point is continued to follow the tracks of; If smaller or equal to the gray threshold that presets, showing, the gray-scale value of fire alarm image do not have the condition of a fire to take place.
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| CN102622845A (en) * | 2012-03-31 | 2012-08-01 | 哈尔滨工业大学 | Background interference elimination device and elimination method based on forest flash point de-disturbance point positioning device |
| CN102881109A (en) * | 2012-02-28 | 2013-01-16 | 北京华拓信通科技股份有限公司 | Forest fire early-warning system based on non-refrigerant infrared temperature detector |
| CN103808414A (en) * | 2013-10-25 | 2014-05-21 | 陕西晟辉投资有限公司 | Ultra-long distance heat source detector |
| CN105513247A (en) * | 2015-11-25 | 2016-04-20 | 北京环境特性研究所 | Floating-mooring-airship-based fire monitoring and positioning system and method |
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| CN106504464A (en) * | 2016-11-04 | 2017-03-15 | 哈尔滨理工大学 | Forest fire protection monitoring system and information fusion method based on infrared thermal imaging |
| CN110602422A (en) * | 2018-05-23 | 2019-12-20 | 杭州海康威视数字技术股份有限公司 | Handheld thermal imager and rapid production method thereof |
| CN113359141A (en) * | 2021-07-28 | 2021-09-07 | 东北林业大学 | Forest fire positioning method and system based on unmanned aerial vehicle multi-sensor data fusion |
| CN113697107A (en) * | 2021-09-13 | 2021-11-26 | 陕西蓝悦无人机技术有限公司 | Multifunctional in-fire action remote obstacle crossing unmanned aerial vehicle, fire extinguishing structure and fire extinguishing method |
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| CN102507009B (en) * | 2011-09-28 | 2013-10-30 | 北京航空航天大学 | Debugging device used for simulating thermal imager operation |
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| CN102881109A (en) * | 2012-02-28 | 2013-01-16 | 北京华拓信通科技股份有限公司 | Forest fire early-warning system based on non-refrigerant infrared temperature detector |
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| CN105913643A (en) * | 2012-08-27 | 2016-08-31 | Lg电子株式会社 | Mobile terminal and controlling method thereof |
| CN105913643B (en) * | 2012-08-27 | 2019-08-02 | Lg电子株式会社 | Mobile terminal and its control method |
| CN103808414B (en) * | 2013-10-25 | 2016-09-21 | 陕西晟辉投资有限公司 | A kind of overlength distance heat detector |
| CN103808414A (en) * | 2013-10-25 | 2014-05-21 | 陕西晟辉投资有限公司 | Ultra-long distance heat source detector |
| CN105513247A (en) * | 2015-11-25 | 2016-04-20 | 北京环境特性研究所 | Floating-mooring-airship-based fire monitoring and positioning system and method |
| CN105513247B (en) * | 2015-11-25 | 2018-01-16 | 北京环境特性研究所 | A kind of fire monitoring alignment system and method that ship is tethered at based on floating |
| CN106504464A (en) * | 2016-11-04 | 2017-03-15 | 哈尔滨理工大学 | Forest fire protection monitoring system and information fusion method based on infrared thermal imaging |
| CN110602422A (en) * | 2018-05-23 | 2019-12-20 | 杭州海康威视数字技术股份有限公司 | Handheld thermal imager and rapid production method thereof |
| CN110602422B (en) * | 2018-05-23 | 2022-02-15 | 杭州海康微影传感科技有限公司 | Handheld thermal imager and rapid production method thereof |
| CN113359141A (en) * | 2021-07-28 | 2021-09-07 | 东北林业大学 | Forest fire positioning method and system based on unmanned aerial vehicle multi-sensor data fusion |
| CN113359141B (en) * | 2021-07-28 | 2021-12-17 | 东北林业大学 | Forest fire positioning method and system based on unmanned aerial vehicle multi-sensor data fusion |
| CN113697107A (en) * | 2021-09-13 | 2021-11-26 | 陕西蓝悦无人机技术有限公司 | Multifunctional in-fire action remote obstacle crossing unmanned aerial vehicle, fire extinguishing structure and fire extinguishing method |
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