CN114005238A - Positioning warning device based on forest fire prevention - Google Patents

Positioning warning device based on forest fire prevention Download PDF

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Publication number
CN114005238A
CN114005238A CN202111523490.XA CN202111523490A CN114005238A CN 114005238 A CN114005238 A CN 114005238A CN 202111523490 A CN202111523490 A CN 202111523490A CN 114005238 A CN114005238 A CN 114005238A
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CN
China
Prior art keywords
module
monitoring
shell
control module
warning device
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Pending
Application number
CN202111523490.XA
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Chinese (zh)
Inventor
庄大伟
冯海宝
吴冉
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Individual
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Individual
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Priority to CN202111523490.XA priority Critical patent/CN114005238A/en
Publication of CN114005238A publication Critical patent/CN114005238A/en
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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
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00Photometry, e.g. photographic exposure meter
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00Indicating or recording presence, absence, or direction, of movement
    • G01P13/02Indicating direction only, e.g. by weather vane
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/393Trajectory determination or predictive tracking, e.g. Kalman filtering
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42Determining position
    • 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
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/009Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells

Abstract

The invention discloses a positioning warning device based on forest fire prevention, and particularly relates to the technical field of forest fire prevention, wherein the positioning warning device comprises a shell, a cover plate is arranged at the top of the shell, a driving module for driving the cover plate to rotate is arranged on the shell, a placing cavity is arranged between the cover plate and the shell, and an unmanned aerial vehicle is arranged in the placing cavity; the monitoring shell is arranged below the shell, a first monitoring module is arranged in the monitoring shell, and a first control module electrically connected with the first monitoring module and the driving module is further arranged in the monitoring shell and used for judging whether to start the driving module according to data fed back by the first monitoring module. According to the invention, the change of the external environment can be monitored in real time through the first monitoring module, when the value of the external environment exceeds the threshold value, no person can navigate according to the track preset in the track module, so that the forest in the area is scanned, the current fire situation can be informed through the image, the GPS positioning module can quickly position the place, and the fire extinguishing efficiency is improved.

Description

Positioning warning device based on forest fire prevention
Technical Field
The invention relates to the technical field of forest fire prevention, in particular to a positioning warning device based on forest fire prevention.
Background
Forest fires are the most dangerous enemies of forests and the most feared disasters of forests, can bring the most harmful and destructive consequences to the forests, not only can the forest fires burn pieces of forests to damage animals in the forests, but also can reduce the reproductive capacity of the forests, cause soil impoverishment and destroy forest conservation water sources, and even cause the ecological environment to lose balance.
The existing forest fire prevention warning board is simple in structure, only has the warning function, is single in function, cannot quickly locate the position of a small spark when the forest has the small spark, needs to be explored by workers, prolongs the fire extinguishing time, and causes overlarge forest loss.
Disclosure of Invention
In order to overcome the above defects in the prior art, the embodiment of the invention provides a positioning warning device based on forest fire prevention, and the technical problems to be solved by the invention are as follows: the multifunctional forest fire extinguishing device only has a warning function and is single in function, when a small spark appears in a forest, the position of the spark cannot be quickly positioned, the spark needs to be explored by workers, the fire extinguishing time is prolonged, and the forest loss is overlarge.
In order to achieve the purpose, the invention provides the following technical scheme: the positioning warning device based on forest fire prevention comprises a shell, wherein a cover plate is arranged at the top of the shell, a driving module for driving the cover plate to rotate is arranged on the shell, a placing cavity is formed between the cover plate and the shell, and an unmanned aerial vehicle is arranged in the placing cavity; a monitoring shell is arranged below the shell, a first monitoring module is arranged in the monitoring shell, a first control module electrically connected with the first monitoring module and the driving module is further arranged in the monitoring shell and used for judging whether the driving module is started according to data fed back by the first monitoring module, and the first control module is in signal connection with a server; be equipped with second monitoring module and second control module in the unmanned aerial vehicle, second monitoring module is connected to the second control module electricity for whether the basis information judgement conflagration breaks out that the second monitoring module feedbacks, the last GPS orientation module and the orbit module of being integrated of second control module, first control module and second control module signal connection.
Furthermore, the first monitoring module comprises a temperature sensor, a humidity sensor and a smoke sensor and is used for monitoring the change of the external environment.
Further, drive module is including the motor, the motor is installed on the casing, motor output end transmission is connected with the gear, gear one side meshing has from the driving wheel, from the fixed pivot that is equipped with in driving wheel top, the pivot is rotated and is connected on the casing, pivot top and apron fixed connection.
Furthermore, the second monitoring module comprises a photosensitive sensor, a panoramic camera module and a wind direction sensor.
Further, the apron top is equipped with solar cell panel, be equipped with the battery between monitoring shell and the casing, solar cell panel passes through the dc-to-ac converter and is connected with the battery, be equipped with the first solenoid of being connected with the battery in the apron, the unmanned aerial vehicle top is equipped with the second solenoid that matches with first solenoid.
Further, the bottom of the monitoring shell is provided with a support column, one side of the support column is fixedly provided with an alarm, the alarm is electrically connected with the first control module, and a storage device is integrated in the alarm.
Further, the first control module is in wireless connection with the server through the first wireless module.
Furthermore, the first control module is in wireless connection with the second control module through the second wireless module.
The invention has the technical effects and advantages that:
1. according to the invention, the change of the external environment can be monitored in real time through the first monitoring module, when the value of the external environment exceeds the threshold value, an unmanned plane can navigate according to the track preset in the track module, so that the forest in the area is scanned, and the current fire situation can be informed through images, the GPS positioning module can quickly position the place, the fire extinguishing efficiency is improved, the device adopts the unmanned plane to monitor the forest, the monitoring range is large, and the efficiency is high;
2. after the unmanned aerial vehicle finishes sailing, the unmanned aerial vehicle returns to the shell through the track module, and the angle of the unmanned aerial vehicle can be adjusted in real time when the unmanned aerial vehicle is reset through the panoramic camera module, so that collision is avoided;
3. according to the invention, the wind direction sensor can be used for monitoring the wind direction when a fire disaster occurs and feeding back the monitoring data, so that firemen can make an isolation zone in advance and the fire disaster is prevented from further expansion;
4. according to the invention, the solar cell panel can convert light energy into electric energy, so that the device can be used in a severe environment, when the unmanned aerial vehicle is positioned in the shell, the first electromagnetic coil and the second electromagnetic coil realize wireless charging under the electromagnetic induction principle, and the long-term endurance of the unmanned aerial vehicle is ensured;
5. when a fire disaster happens, the first control module can start the alarm, and the alarm automatically plays the alarm content, so that pedestrians are dissuaded from the alarm, and casualties are avoided.
Drawings
Fig. 1 is a perspective view of the overall structure of the present invention.
Fig. 2 is a side view of the overall structure of the present invention.
Fig. 3 is a front view of the overall structure of the present invention.
FIG. 4 is an enlarged view of the portion A of FIG. 3 according to the present invention.
Fig. 5 is a schematic view of the cover opening structure of the present invention.
FIG. 6 is a block diagram of a control system of the present invention.
The reference signs are: 1. a housing; 2. a cover plate; 3. a drive module; 4. a placement chamber; 5. an unmanned aerial vehicle; 6. monitoring the shell; 7. a first monitoring module; 8. a first control module; 9. a server; 10. a second monitoring module; 11. a second control module; 12. a GPS positioning module; 13. a trajectory module; 14. a temperature sensor; 15. a humidity sensor; 16. a smoke sensor; 17. a motor; 18. a gear; 19. a rotating shaft; 20. a photosensitive sensor; 21. a panoramic camera module; 22. a wind direction sensor; 23. a solar panel; 24. a storage battery; 25. a first electromagnetic coil; 26. a support pillar; 27. an alarm; 28. a reservoir; 29. a first wireless module; 30. and a second wireless module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 6, the positioning warning device based on forest fire prevention is provided in this embodiment, and includes a housing 1, a cover plate 2 is disposed on a top of the housing 1, a driving module 3 for driving the cover plate 2 to rotate is disposed on the housing 1, a placement cavity 4 is disposed between the cover plate 2 and the housing 1, and an unmanned aerial vehicle 5 is disposed in the placement cavity 4; a monitoring shell 6 is arranged below the shell 1, a first monitoring module 7 is arranged in the monitoring shell 6, a first control module 8 electrically connected with the first monitoring module 7 and the driving module 3 is further arranged in the monitoring shell 6 and used for judging whether to start the driving module 3 according to data fed back by the first monitoring module 7, and the first control module 8 is in signal connection with a server 9; be equipped with second monitoring module 10 and second control module 11 in the unmanned aerial vehicle 5, second monitoring module 10 is connected to second control module 11 electricity, is used for the basis whether the information judgement conflagration breaks out of second monitoring module 10 feedback, integrated GPS orientation module 12 and orbit module 13 on the second control module 11, first control module 8 and the 11 signal connection of second control module.
In a specific embodiment, when the device is used, the change of the external environment can be monitored in real time through the first monitoring module 7, for example, when the external temperature is higher than a preset threshold, the humidity is lower than the preset threshold or smoke generated by external combustion is monitored, the first monitoring module 7 feeds a signal back to the first control module 8, the first control module 8 controls the driving module 3 to open the cover plate 2, so as to expose the internal unmanned aerial vehicle 5, the first control module 8 starts the unmanned aerial vehicle 5 through the second wireless module 30, the unmanned aerial vehicle 5 navigates according to a track preset in the track module 13, so as to scan the forest in the area, the unmanned aerial vehicle 5 can photograph the situation in the monitored area through the panoramic camera module 21 during navigation, and can transmit graphic data to the server 9 for the firemen to watch, and can monitor the intensity of external radiation through the photosensitive sensor 20, thereby judge whether the conflagration breaks out, when the conflagration breaks out, second control module 11 can be with the graphical data transmission of shooting to first control module 8 in, first control module 8 can be with signal transmission to server 9 in through first wireless module 29, thereby inform the condition of current conflagration through the image, and can fix a position the place fast through GPS orientation module 12 on unmanned aerial vehicle 5, improve the efficiency of putting out a fire, after unmanned aerial vehicle 5 accomplishes the navigation, unmanned aerial vehicle 5 can return to in casing 1 through orbit module 13, and make unmanned aerial vehicle 5 can carry out real-time adjustment to self angle when reseing through panorama camera module 21, avoid bumping, this device adopts unmanned aerial vehicle 5 to carry out the forest monitoring, monitoring range is big, high efficiency.
In this embodiment, the first monitoring module 7 includes a temperature sensor 14, a humidity sensor 15 and a smoke sensor 16 for monitoring the change of the external environment.
For example, when ambient temperature is higher than preset threshold value, humidity is less than preset threshold value or monitor the smog of external burning after, first monitoring module 7 can feed back signal to first control module 8, and first control module 8 can control drive module 3 and open apron 2, start unmanned aerial vehicle 5.
Wherein, when temperature or humidity reached and predetermine the threshold value, represent that external environment temperature is too high or humidity is low excessively, very easily take place the fire hazard to start unmanned aerial vehicle 5 and cruise.
The model of the smoke sensor 16 is GQQ 0.1.1, the model of the temperature sensor 14 is GSP201, the model of the humidity sensor 15 is HIH3605/3610, and the models of the first control module 8 and the second control module 11 are i 5-3230M.
In this embodiment, the driving module 3 includes a motor 17, the motor 17 is installed on the casing 1, the output end of the motor 17 is connected with a gear 18 in a transmission manner, one side of the gear 18 is engaged with a driven wheel, a rotating shaft 19 is fixedly arranged at the top of the driven wheel, the rotating shaft 19 is rotatably connected on the casing 1, and the top of the rotating shaft 19 is fixedly connected with the cover plate 2.
For example, when motor 17 starts, the motor 17 output can drive fixed connection's gear 18 and rotate, gear 18 drives the meshing from the driving wheel rotation, it is fixed with pivot 19 from the driving wheel, so drive pivot 19 and rotate, apron 2 is fixed with pivot 19, so apron 2 can use pivot 19 to rotate as the axle center, thereby will place chamber 4 and open and expose inside unmanned aerial vehicle 5, and unmanned aerial vehicle 5 leaves in casing 1 when not using, can avoid receiving the corruption of external environment dust or rainwater, thereby improve self life.
In the present embodiment, the second monitoring module 10 includes a photosensitive sensor 20, a panoramic camera module 21 and a wind direction sensor 22.
For example, unmanned aerial vehicle 5 can shoot the condition in the forest monitoring area through panorama camera module 21 at the in-process of navigation, and can transmit graphic data to server 9, supply the fire fighter to watch, and can monitor external radiant light intensity through photosensitive sensor 20, thereby judge whether the conflagration breaks out, wind direction when can monitoring the conflagration through wind direction sensor 22, and feed back monitoring data, can make the fire fighter make the median in advance, prevent that the conflagration from further expanding.
The photosensitive sensor 20 is of an S2386-44K model, the panoramic camera module 21 is a high-definition camera shooting night vision all-in-one machine, and the wind direction sensor 22 is of an XFY3-1 model.
In this embodiment, the top of the cover plate 2 is provided with a solar cell panel 23, a storage battery 24 is arranged between the monitoring shell 6 and the housing 1, the solar cell panel 23 is connected with the storage battery 24 through an inverter, a first electromagnetic coil 25 connected with the storage battery 24 is arranged in the cover plate 2, and a second electromagnetic coil matched with the first electromagnetic coil 25 is arranged at the top of the unmanned aerial vehicle 5.
For example, can turn into the electric energy with light energy through solar cell panel 23, make this device can use under the abominable condition of environment, when unmanned aerial vehicle 5 was located casing 1, first solenoid 25 and second solenoid realized wireless charging under the electromagnetic induction principle, guaranteed unmanned aerial vehicle 5's long time continuation of the journey.
In this embodiment, a supporting column 26 is arranged at the bottom of the monitoring shell 6, an alarm 27 is fixedly arranged on one side of the supporting column 26, the alarm 27 is electrically connected with the first control module 8, and a storage 28 is integrated in the alarm 27.
For example, when a fire occurs, the first control module 8 activates the alarm 27, and the alarm 27 automatically plays the alarm content, so as to persuade pedestrians to avoid causing casualties, and the content can be prestored in the storage 28.
In this embodiment, the first control module 8 is wirelessly connected to the server 9 through the first wireless module 29.
The wireless transmission of signals between the first control module 8 and the server 9 can be realized through the first wireless module 29, the data transmission speed is high, the response of fire fighters is more timely,
the first control module 8 is wirelessly connected with the second control module 11 through the second wireless module 30.
Realize the wireless transmission of signal between first control module 8 and unmanned aerial vehicle 5 through second wireless module 30, be convenient for the very first time obtain fire data.
The models of the first wireless module 29 and the second wireless module 30 are nrf24l 01.
The working principle of the invention is as follows:
referring to description attached figures 1-6, but through the change of first monitoring module 7 real-time supervision external environment, first control module 8 can start unmanned aerial vehicle 5 through second wireless module 30, unmanned aerial vehicle 5 can navigate according to the track that predetermines in the track module 13, thereby scan the forest in this region, when the conflagration breaing out, second control module 11 can be with during the graphic data transmission of shooting arrives first control module 8, first control module 8 can be with signal transmission to server 9 in through first wireless module 29, thereby inform the condition of current conflagration through the image, and can fix a position the place fast through GPS orientation module 12 on unmanned aerial vehicle 5.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims (8)

1. The positioning warning device based on forest fire prevention is characterized by comprising a shell (1), wherein a cover plate (2) is arranged at the top of the shell (1), a driving module (3) for driving the cover plate (2) to rotate is arranged on the shell (1), a placing cavity (4) is arranged between the cover plate (2) and the shell (1), and an unmanned aerial vehicle (5) is arranged in the placing cavity (4);
a monitoring shell (6) is arranged below the shell (1), a first monitoring module (7) is arranged in the monitoring shell (6), a first control module (8) electrically connected with the first monitoring module (7) and the driving module (3) is further arranged in the monitoring shell (6) and used for judging whether the driving module (3) is started or not according to data fed back by the first monitoring module (7), and the first control module (8) is in signal connection with a server (9);
be equipped with second monitoring module (10) and second control module (11) in unmanned aerial vehicle (5), second monitoring module (10) is connected to second control module (11) electricity for whether according to the information judgement conflagration breaks out of second monitoring module (10) feedback, integrated GPS orientation module (12) and track module (13) on second control module (11), first control module (8) and second control module (11) signal connection.
2. A forest fire prevention based positioning and warning device as claimed in claim 1, wherein: the first monitoring module (7) comprises a temperature sensor (14), a humidity sensor (15) and a smoke sensor (16) and is used for monitoring the change of the external environment.
3. A forest fire prevention based positioning and warning device as claimed in claim 1, wherein: drive module (3) is including motor (17), install on casing (1) motor (17), motor (17) output transmission is connected with gear (18), gear (18) one side meshing has from the driving wheel, from the fixed pivot (19) that is equipped with in driving wheel top, pivot (19) rotate to be connected on casing (1), pivot (19) top and apron (2) fixed connection.
4. A forest fire prevention based positioning and warning device as claimed in claim 1, wherein: the second monitoring module (10) comprises a photosensitive sensor (20), a panoramic camera module (21) and an air direction sensor (22).
5. A forest fire prevention based positioning and warning device as claimed in claim 1, wherein: apron (2) top is equipped with solar cell panel (23), be equipped with battery (24) between monitoring shell (6) and casing (1), solar cell panel (23) are connected with battery (24) through the dc-to-ac converter, be equipped with first solenoid (25) of being connected with battery (24) in apron (2), unmanned aerial vehicle (5) top is equipped with the second solenoid who matches with first solenoid (25).
6. A forest fire prevention based positioning and warning device as claimed in claim 1, wherein: monitoring shell (6) bottom is equipped with support column (26), fixed alarm (27) that are equipped with in support column (26) one side, alarm (27) are connected with first control module (8) electricity, integrated storage (28) in alarm (27).
7. A forest fire prevention based positioning and warning device as claimed in claim 1, wherein: the first control module (8) is in wireless connection with the server (9) through the first wireless module (29).
8. A forest fire prevention based positioning and warning device as claimed in claim 1, wherein:
the first control module (8) is in wireless connection with the second control module (11) through the second wireless module (30).
CN202111523490.XA 2021-12-14 2021-12-14 Positioning warning device based on forest fire prevention Pending CN114005238A (en)

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CN115223319A (en) * 2022-07-19 2022-10-21 陈昕 Forestry monitored control system based on thing networking

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CN109416864A (en) * 2016-07-12 2019-03-01 德国美力有限两合公司 For determining the system and method for fire condition verifiedly and for this traveling tool and central location
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114882663A (en) * 2022-06-08 2022-08-09 徐俊亮 Fire prediction early warning device and method for agriculture, forestry and grasses composite zoning
CN115223319A (en) * 2022-07-19 2022-10-21 陈昕 Forestry monitored control system based on thing networking

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