CN112164197A - Multispectral-based power transmission line forest fire survey early warning device - Google Patents
Multispectral-based power transmission line forest fire survey early warning device Download PDFInfo
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/005—Fire alarms; Alarms responsive to explosion for forest fires, e.g. detecting fires spread over a large or outdoors area
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
- G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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Abstract
The invention provides a multispectral-based forest fire survey early warning device for a power transmission line, which comprises a fire detection mechanism, a central controller and a background monitoring center, wherein the fire detection mechanism is used for detecting field fire information, flame burning information in a forest and the distance between a forest fire target and a tower and sending the information to the central controller; the device also comprises a fireproof coating mechanism and guide rods symmetrically arranged on the front side and the rear side of the power transmission line, wherein a moving mechanism driven by a motor is arranged on the two guide rods in a sliding manner; the fireproof coating mechanism comprises a box body arranged on the moving mechanism; the upper inner wall, the lower inner wall, the front inner wall and the rear inner wall of the box body are respectively provided with a first electric telescopic rod, and each first electric telescopic rod is provided with a first arc plate penetrating through the material spraying head; the material spraying head is communicated with a material storage tank through a conveying pipe with a first pump. The invention can detect the flame in time and take the fighting measures while early warning, thereby improving the coping ability to the mountain fire.
Description
Technical Field
The invention relates to the technical field of power monitoring, in particular to a leakage alarm monitoring device for detecting a power transmission line.
Background
The mountain fire is also called forest fire, vegetation fire, grassland fire or shrub fire, is a fire condition which is difficult to control in forest, is usually caused by lightning, other common reasons include careless and deliberate fire of human beings, more than 90% of fires in the world are artificially caused, in China, forest fires caused by human factors account for more than 98%, and except for longitudinal fire and lightning stroke, the main reasons for causing the fires by mistake come from violation of regulations and carelessness.
The mountain fire occurring near the transmission line is one of the main disasters threatening the safe operation of the transmission line. In recent years, mountain fire tripping accidents of power transmission lines frequently occur, and power transmission is seriously influenced. Therefore, in order to reduce the threat of the forest fire to the power transmission line and ensure the safety of the power transmission line, the forest fire of the power transmission line needs to be effectively monitored. Most of the existing monitoring systems adopt an infrared camera to patrol the vicinity of a power transmission line, and when a mountain fire is found, information is sent to a background monitoring center through a signal transmitter to wait for a worker to put out the fire; however, the existing monitoring system can only identify the fire, but cannot identify the size of the fire and cannot take a fire fighting measure before fire fighting personnel arrive, so that the power transmission line still can be damaged to a certain extent after early warning, and the normal operation of the power transmission line is influenced.
Disclosure of Invention
The invention aims to solve at least one of the technical problems in the related technology to a certain extent, and therefore provides a multispectral-based power transmission line forest fire surveying and early warning device which can detect fire in time, and adopts a rescue measure while early warning in time, so that the response capability to the forest fire is improved, and the trip accident rate of the power transmission line caused by the forest fire is reduced.
The technical scheme of the invention is realized as follows:
a multispectral-based power transmission line forest fire survey early warning device comprises a front-end detection assembly and a background monitoring center, wherein the front-end detection assembly comprises a fire detection mechanism and a central controller, the fire detection mechanism is used for detecting field fire information, forest fire combustion information and the distance between a forest fire target and a tower, and transmitting the detected field fire information, flame combustion information and the distance between the forest fire target and the tower to the central controller, the central controller is connected with the background monitoring center through a wireless network, the early warning device further comprises a moving mechanism, a fire coating mechanism and guide rods symmetrically arranged on the front side and the rear side of a power transmission line, the moving mechanism is arranged on the two guide rods in a sliding mode and driven by a motor to move left and right along the guide rods, the motor is electrically connected with the central controller; the fire coating and preventing mechanism comprises a box body fixed on the moving mechanism, and the left side wall and the right side wall of the box body are respectively provided with a first through hole for a power transmission wire to pass through; the upper inner wall, the lower inner wall, the front inner wall, the rear inner wall and the front inner wall of the box body are respectively provided with a first electric telescopic rod, the telescopic end of each first electric telescopic rod is provided with a first arc plate, and when the first electric telescopic rods extend out, the four first arc plates surround a round hole with the aperture larger than that of the power transmission line; every all run through on the first circular arc board and have spouted the stub bar, spout the stub bar and be equipped with the storage tank of fire prevention feed liquid through the conveyer pipe intercommunication, be equipped with on the conveyer pipe by central controller control opens the first pump that stops, be provided with in the box with central controller control opens the heater that stops.
Furthermore, one end of the first arc plate is provided with an elastic arc section, one end of the first arc plate, which faces the elastic arc section, is provided with an arc groove matched with the elastic arc section, and one end of the elastic arc section is embedded in the arc groove.
Furthermore, the storage tanks are four, the four storage tanks are respectively arranged on the upper inner side wall, the lower inner side wall, the front inner side wall and the rear inner side wall of the box body, and the storage tanks and the material spraying heads on the same inner side wall of the box body are communicated in a one-to-one correspondence mode through the conveying pipes.
Furthermore, the conveying pipe is provided with a control valve for controlling the flow passing through the section of the conveying pipe, and the size of the valve of the control valve is controlled and adjusted by the central controller.
Furthermore, the moving mechanism comprises a mounting plate, wherein four corners of the mounting plate are respectively provided with a first roller, a first shaft is connected between the two first rollers positioned at the left end, a second shaft is connected between the two first rollers positioned at the right end, a first gear is arranged on the second shaft, and an output shaft of the motor is provided with a second gear meshed with the first gear; every all be connected with the second gyro wheel through the connecting plate under the first gyro wheel, first gyro wheel with the second gyro wheel all with the connecting plate rotates and is connected, be formed with between first gyro wheel with the second gyro wheel and supply the clearance that the guide bar passed.
Furthermore, a second through hole is formed in the lower end of the side wall of the connecting plate, a rotating shaft of the second roller is rotatably connected with the second through hole through a bearing, the second through hole is a strip-shaped hole distributed in the vertical direction, a spring is arranged in the strip-shaped hole, one end of the spring is connected with the lower bottom wall of the strip-shaped hole, and the other end of the spring is connected with the outer peripheral face of the bearing.
Further, the motor is arranged in the middle of the lower end of the mounting plate in the front-back direction, a third gear and a fourth gear which are meshed with the second gear are respectively arranged on the left side and the right side of the second gear, and the first gear is meshed with the fourth gear; and a fifth gear is arranged on the first shaft and meshed with the third gear.
The rainwater collecting box is characterized by further comprising a plurality of rainwater collecting boxes, wherein the upper ends of the rainwater collecting boxes are connected with box covers in a sliding mode, the box covers are driven by second electric telescopic rods, and the second electric telescopic rods are controlled to be started and stopped by the central controller; the upper surface of the box cover is provided with a raindrop sensor electrically connected with the central controller; every rainwater header tank all has the spray pipe through first pipe connection, every all be provided with on the first pipeline by the solenoid valve that central controller control opened and stop, be provided with on the spray pipe by the high-pressure plunger pump that central controller control opened and stops, be provided with a plurality of high pressure water spray guns along the length direction interval of power transmission line on the spray pipe, the export slope of high pressure water spray gun upwards sets up.
Further, the fire detection mechanism comprises a radar detector and a multispectral camera, wherein the radar detector is used for radiating millimeter wave signals to an area needing to be detected through an antenna, receiving echo signals of a mountain fire target, converting the echo signals of the mountain fire target into corresponding electric signals and sending the electric signals to the central controller; the multispectral camera is used for shooting field fire information of a mountain forest and transmitting the shot field fire information to the central controller, the central controller determines whether fire exists or not by analyzing the field fire information shot by the multispectral camera, and the multispectral camera is provided with a far infrared temperature detector which is used for detecting flame combustion information in the mountain forest and transmitting the flame combustion information to the central controller.
Furthermore, the front-end detection assembly further comprises a smoke detector for detecting smoke in real time in an area where a tower of the power transmission line is located, the central controller is electrically connected with the smoke detector, receives a smoke concentration value output by the smoke detector and generates a smoke alarm electric signal when the smoke concentration value is higher than a set value, and the smoke alarm electric signal controls the multispectral camera to be started for video acquisition.
Compared with the prior art, the invention has the beneficial effects that:
(1) the method comprises the steps that a multispectral camera is adopted to shoot an area where a tower is located to find field fire information in a mountain forest, a target light wave is divided into a plurality of wave bands according to wavelength, then images of all the wave bands are shot simultaneously, the shot images of all the wave bands are transmitted to a central controller, the central controller compares the images of all the wave bands with non-fire heat source area images stored in the central controller, when the temperature of a heat source in the shot images exceeds a temperature threshold value of a non-fire heat source area, a far infrared thermometer is controlled to start to detect flame combustion information (combustion temperature) of the mountain forest in the area, the detected flame combustion information (combustion temperature) is fed back to the central controller to be analyzed, and the size of the fire of the mountain fire and the size of the mountain fire can be found timely; when mountain fire is found, the radar detector is controlled to radiate millimeter wave signals to an area needing to be detected through the antenna, echo signals of a mountain fire target are received, the echo signals of the mountain fire target are converted into corresponding electric signals, the electric signals are sent to the central controller to be analyzed, the position of the mountain fire target and the distance between the mountain fire target and a tower are obtained, and accurate positioning of the mountain fire target is achieved.
(2) The fireproof material coating mechanism is arranged on the moving mechanism, when the central controller detects that the distance between the mountain fire target and the tower is smaller than a set value and the combustion temperature of the mountain fire target exceeds the set value, the central controller controls the motor to drive the moving mechanism to move along the guide rod at intervals, the moving mechanism stops after moving for a certain distance, then the four first electric telescopic rods are controlled to extend out, so that the four first arc plates form circular holes in a surrounding mode, then the first pump is started, fireproof material liquid is sprayed into the circular hole space formed by the first arc plates from the material spraying head, then the heater is started to generate heat, and the fireproof material liquid is condensed and wraps the outer surface of the power transmission line to form a fireproof layer; after a period of time, the motor is started to drive the moving mechanism to move for a certain distance, so that round holes formed by the four arc plates wrap other positions of the power transmission line, and then fireproof material liquid is sprayed to form a fireproof layer; make the surface that corresponds the regional power transmission line of mountain fire cover have the one deck flame retardant coating, the fire prevention feed liquid adopts nontoxic type inflation fire prevention feed liquid, when mountain fire is close the power transmission line, the flame retardant coating can prevent the infiltration of high temperature to the flame retardant coating, make the temperature of power transmission line surface not rise along with the effect of mountain fire, thereby play the effect of protection power transmission line, avoid the power transmission line to cause the damage because of mountain fire, thereby put out a fire for the sufficient time of staff, and then avoid mountain fire to influence people's normal power consumption.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a device structure diagram of a multispectral-based power transmission line forest fire survey early warning device according to an embodiment of the invention;
fig. 2 is a schematic view of an assembly structure of a moving mechanism, a fire retardant coating mechanism and a power transmission line in the multispectral-based power transmission line forest fire survey early warning device according to the embodiment of the invention;
FIG. 3 is a schematic view of the assembly of the moving mechanism and the coating mechanism of FIG. 2;
FIG. 4 is an enlarged schematic view at A in FIG. 3;
FIG. 5 is a schematic top view of the structure of FIG. 2;
FIG. 6 is a schematic view of a transmission structure of the motor and the first roller in FIG. 2;
fig. 7 is a schematic structural view of the first arc plate and the elastic arc segment in the retracted state of the first electric telescopic rod in fig. 2;
fig. 8 is a schematic structural view of the first arc plate and the elastic arc segment in the maximum extending state of the first electric telescopic rod in fig. 2;
FIG. 9 is a schematic diagram of the electrical connections of the battery and heater of FIG. 2;
FIG. 10 is a block diagram of the energy storage mechanism in an embodiment of the present invention;
FIG. 11 is a block diagram of the components of a radar sensor in an embodiment of the present invention;
FIG. 12 is a schematic diagram of the extraction of target location information of a radar detector according to an embodiment of the present invention;
fig. 13 is a schematic view of an assembly structure of the rainwater collection tank, the second electric telescopic rod and the high-pressure water spraying gun in the embodiment of the invention.
Reference numerals:
100 front end detection component, 110 multispectral camera, 120 central controller, 130 radar detector, 131 antenna, 132 circulator, 133 high-level amplifier, 140 far infrared temperature detector and 150 smoke detector;
200 background monitoring center, 210 alarm;
300 moving mechanism, 310 motor, 311 second gear, 312 third gear, 313 third gear, 320 mounting plate, 330 first roller, 331 first shaft, 332 second shaft, 333 first gear, 334 fifth gear, 340 connecting plate, 341 second through hole, 342 spring, 350 second roller and 351 bearing;
the device comprises a 400-coating fireproof mechanism, a 410 box body, a 411 first through hole, a 412 upper cover, a 413 solar power generation board, a 420 first electric telescopic rod, a 430 first arc board, a 431 elastic arc board, a 432 arc groove, a 440 spray head, a 450 storage tank, a 460 conveying pipe, a 461 first pump, a 462 control valve, a 470 heater, a 480 storage battery and a 490 bimetallic strip temperature switch;
510 power lines, 520 guide rods;
610 a rainwater collecting tank, 620 a tank cover, 630 a second electric telescopic rod, 640 a raindrop sensor, 650 a first pipeline, 651 an electromagnetic valve, 660 a water spraying pipe, 661 a high-pressure plunger pump and 662 a high-pressure water spraying gun;
700 energy storage mechanism, 710 storage battery pack, 720 electricity taking coil and 730 solar charge and discharge controller.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to the orientation description, such as "upper", "lower", "front", "rear", "left", "right", etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if there are descriptions of "first", "second", "third", "fourth", "fifth", etc. for the purpose of distinguishing technical features, they are not to be interpreted as indicating or implying relative importance or implicit indication of the number of technical features indicated or implicit indication of the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 8, the multispectral-based transmission line forest fire survey early warning device provided by the embodiment of the invention includes a front-end detection component 100 and a background monitoring center 200, where the front-end detection component 100 includes a fire detection mechanism and a central controller 120, the fire detection mechanism is configured to detect field fire information, forest fire combustion information, and a distance between a mountain fire target and a tower, and transmit the detected field fire information, flame combustion information, and the distance between the mountain fire target and the tower to the central controller 120, and the central controller 120 is connected to the background monitoring center 200 through a wireless network; the early warning device further comprises a moving mechanism 300, a fireproof material coating mechanism 400 and guide rods 520 symmetrically arranged on the front side and the rear side of the power transmission line 510, wherein the moving mechanism 300 is arranged on the two guide rods 520 in a sliding manner, the moving mechanism 300 is driven by a motor 310 to move left and right along the guide rods 520, and the motor 310 is electrically connected with the central controller 120; the coating mechanism 400 comprises a box body 410 fixed on the moving mechanism 300, and the left and right side walls of the box body 410 are respectively provided with a first through hole 411 for the transmission wire 510 to pass through; the upper inner wall, the lower inner wall, the front inner wall and the rear inner wall of the box body 410 are respectively provided with a first electric telescopic rod 420, the telescopic end of each first electric telescopic rod 420 is provided with a first arc plate 430, and when the first electric telescopic rods 420 extend out, the four first arc plates 430 surround a circular hole with the aperture larger than that of the power transmission line 510; the material spraying head 440 penetrates through each first arc plate 430, the material spraying head 440 is communicated with a storage tank 450 filled with fireproof material liquid through a conveying pipe 460, a first pump 461 controlled to be started and stopped by the central controller 120 is arranged on the conveying pipe 460, and a heater 470 controlled to be started and stopped by the central controller 120 is arranged in the box body 410.
Compared with the prior art, according to the embodiment of the invention, the moving mechanism 300 is arranged on the fireproof material coating mechanism 400, when the central controller 120 detects that the distance between the mountain fire target and the tower is smaller than a set value and the combustion temperature of the mountain fire target exceeds the set value, the central controller 120 controls the motor 310 to drive the moving mechanism 300 to move at intervals along the guide rod 520, the moving mechanism 300 stops after moving for a certain distance, then the four first electric telescopic rods 420 are controlled to extend out, so that the four first arc plates 430 surround a circular hole, then the first pump 461 is started, so that the fireproof material liquid is sprayed into the circular hole space surrounded by the first arc plates 430 from the material spraying head 440, and then the heater 470 is started to heat, so that the fireproof material liquid is condensed and coated on the outer surface of the power transmission line 510 to form a fireproof; after a period of time, the motor 310 is started to drive the moving mechanism 300 to move for a certain distance, so that circular holes formed by the four arc plates wrap other positions of the power transmission line 510, and then fireproof material liquid is sprayed to form a fireproof layer; make the surface that corresponds regional power transmission line 510 of mountain fire cover there is the one deck flame retardant coating, the fire prevention feed liquid adopts nontoxic type inflation fire prevention feed liquid, when mountain fire is close power transmission line 510, the flame retardant coating can prevent the infiltration of high temperature to the flame retardant coating, make the temperature of power transmission line 510 surface not rise along with the effect of mountain fire, thereby play the effect of protection power transmission line 510, avoid power transmission line 510 to cause the damage because of mountain fire, thereby put out a fire to mountain fire for the sufficient time of staff, and then avoid mountain fire to influence people's normal power consumption.
As shown in fig. 1, preferably, the embodiment of the present invention further includes an alarm 210 electrically connected to the background monitoring center 200, and when the background monitoring center 200 receives the on-site fire information and/or the flame burning information sent by the central controller 120, the background monitoring center 200 controls the alarm 210 to send out an alarm sound, so as to remind a monitoring person of a dangerous situation of a mountain fire, and thus, the monitoring person can respond in time to process the mountain fire.
As shown in fig. 1 and 10, further, the embodiment of the present invention further includes an energy storage mechanism 700. The energy storage mechanism 700 comprises a storage battery pack 710, a power taking coil 720 and a solar charging and discharging controller 730, wherein the storage battery pack 710 is used for storing electric energy and conducting electricity outwards, the power taking coil 720 is used for converting solar energy into electric energy and outputting the electric energy, the solar charging and discharging controller 730 is used for converting the electric energy and outputting the electric energy to supply power to the storage battery pack 710, the storage battery pack 710 is used for storing the electric energy and supplying power to the front-end detection assembly 100, and the normal power supply of the whole front-end detection assembly 100 can be ensured by utilizing renewable.
As shown in fig. 3, 7 and 8, in some embodiments of the present invention, an elastic arc section 431 is disposed at one end of each first arc plate 430, an arc groove 432 matched with the elastic arc section 431 is disposed at one end of each adjacent first arc plate 430 facing the elastic arc section 431, and one end of the elastic arc section 431 is embedded in the arc groove 432. Set up like this, can be to the size of condition of a fire, control first electric telescopic handle 420's flexible volume, because elasticity arc section 431 can be accomodate in arc groove 432 or stretch out outside arc groove 432, and deformation can take place for elasticity arc section 431, when first electric telescopic handle 420 retracts, elasticity arc section 431 can expand under self elastic action from the part that stretches out in arc groove 432, thereby make first circular arc board 430 cooperation elasticity arc section 431 enclose the hole of becoming different diameters, thereby can form the flame retardant coating of different thickness on the surface of power transmission line 510, and then deal with different conditions of a fire, strong adaptability.
As shown in fig. 2 and 3, in some embodiments of the present invention, four storage tanks 450 are provided, the four storage tanks 450 are respectively installed on the upper, lower, front, and rear inner sidewalls of the box 410, and the storage tanks 450 located on the same inner sidewall of the box 410 are in one-to-one correspondence with the material spray heads 440 through a conveying pipe 460. Through with every material spraying head 440 through a storage tank 450 of conveyer pipe 460 intercommunication alone, be provided with a first pump 461 alone on every conveyer pipe 460 for material liquid that material spraying head 440 on every first circular arc board 430 spouts in the round hole space that first circular arc board 430 encloses is unanimous basically, thereby makes the final thickness of the flame retardant coating of package at power transmission line 510 surface comparatively even, and fire prevention is effectual.
As shown in fig. 3 and 4, in some embodiments of the present invention, the duct 460 is provided with a control valve 462 for controlling the flow through the section of the duct 460, and the valve size of the control valve 462 is controlled and adjusted by the central controller 120. The valve size of the control valve 462 can be adjusted and matched according to the difference of the diameter of the hole surrounded by the first arc plate 430 and the elastic arc section 431, and when the diameter of the surrounded hole is large, the valve size of the control valve 462 is adjusted to be large, so that the fireproof layer can be formed through rapid filling.
As shown in fig. 3 and 6, in some embodiments of the present invention, the moving mechanism 300 includes a mounting plate 320, first rollers 330 are respectively disposed at four corners of the mounting plate 320, a first shaft 331 is connected between the two first rollers 330 at the left end, a second shaft 332 is connected between the two first rollers 330 at the right end, a first gear 333 is disposed on the second shaft 332, and a second gear 311 engaged with the first gear 333 is disposed on an output shaft of the motor 310; a second roller 350 is connected to the position right below each first roller 330 through a connecting plate 340, the first rollers 330 and the second rollers 350 are rotatably connected to the connecting plate 340, and a gap for the guide rod 520 to pass through is formed between the first rollers 330 and the second rollers 350. With such an arrangement, when the moving mechanism 300 needs to be driven to move along the guide rod 520, the central controller 120 controls the motor 310 to be started, so that the second gear 311 rotates, the second shaft 332 is driven to rotate through the meshing transmission relationship between the first gear 333 and the second gear 311, and then the two first rollers 330 at the right end rotate, thereby realizing the function of moving in the left-right direction. The gap for the guide rod 520 to pass through is arranged between the first roller 330 and the second roller 350, so that the first roller 330 and the second roller 350 are respectively abutted to the upper end and the lower end of the guide rod 520, the moving mechanism 300 is kept stable in the process of moving left and right, and the situation of side turning is avoided.
As shown in fig. 3, in some embodiments of the present invention, the lower end of the side wall of the connecting plate 340 is provided with a second through hole 341, the rotating shaft of the second roller 350 is rotatably connected to the second through hole 341 through a bearing 351, the second through hole 341 is a long hole distributed in the up-down direction, a spring 342 is disposed in the long hole, one end of the spring 342 is connected to the lower bottom wall of the long hole, and the other end of the spring 342 is connected to the outer circumferential surface of the bearing 351. With the arrangement, when the local thickness of the guide rod 520 changes, the distance between the first roller 330 and the second roller 350 can be adjusted to adapt through the adjusting function of the spring 342, so that the phenomenon that the moving mechanism 300 is clamped and cannot move due to the fact that the local thickness of the guide rod 520 becomes large is avoided.
As shown in fig. 6, in some embodiments of the present invention, the motor 310 is disposed at the lower middle portion of the mounting plate 320 in the front-rear direction, the left and right sides of the second gear 311 are respectively provided with a third gear 312 and a fourth gear 313 engaged with the second gear 311, and the first gear 333 and the fourth gear 313 are engaged; the first shaft 331 is provided with a fifth gear 334, and the fifth gear 334 is engaged with the third gear 312. With such an arrangement, after the motor 310 is started, the first shaft 331 and the second shaft 332 can be driven to rotate through gear transmission, so that the four first rollers 330 rotate together, and the moving mechanism 300 can move stably under the guiding action of the guide rod 520. It can be understood that the third gear 312 and the fourth gear 313 are the same gear, and the first gear 333 and the fifth gear 334 are the same gear, so as to ensure that the four first rollers 330 rotate at the same speed and the moving mechanism 300 moves smoothly.
As shown in fig. 3, in some embodiments of the present invention, an upper end of the case 410 is provided as an openable and closable upper cover 412, one side of the upper cover 412 is hinged to a sidewall of the case 410, and the other side of the upper cover 412 is fastened by a snap. With this arrangement, when the components contained in the case 410 need to be inspected or repaired and replaced, the upper cover 412 can be opened, so that the operator can observe the conditions in the case 410 and replace the components inside, and the inspection and the repair are convenient.
As shown in fig. 9, it is preferable that the heater 470 is a heating wire electrically connected to the battery 480, the motor 310 is electrically connected to the battery 480, a bimetal temperature switch 490 is provided on a circuit between the heating wire and the battery 480, and the bimetal temperature switch 490 is provided in an openable manner to open the circuit to control the heating temperature. The bimetallic strip temperature switch 490 can control the heating temperature in the box body 410, when the temperature in the box body 410 reaches a certain temperature, the bimetallic strip temperature switch 490 is automatically switched off to stop heating; when the temperature drops to a certain value, bimetallic strip temperature switch 490 connects automatically, continues to heat for the temperature in box 410 keeps at a comparatively stable temperature range, avoids the temperature to hang down excessively or too high, leads to the fire prevention feed liquid to condense the effect not good, and then does not play the fire prevention effect of ideal.
Further, a solar power generation panel 413 is provided on the upper end surface of the case 410, and the solar power generation panel 413 is electrically connected to the battery 480. The solar power generation board 413 is used for converting electric energy and outputting the electric energy to supply power to the storage battery 480, the storage battery 480 is used for storing electric energy and supplying power to the motor 310 and the heater 470, and the normal work of the whole moving mechanism 300 and the coating mechanism 400 can be ensured by utilizing renewable solar power generation.
As shown in fig. 13, in some embodiments of the present invention, the warning device further includes a plurality of rainwater collection tanks 610, a tank cover 620 is slidably connected to an upper end of each rainwater collection tank 610, the tank cover 620 is driven by a second electric telescopic rod 630, and the second electric telescopic rod 630 is controlled by the central controller 120 to start and stop; the upper surface of the case cover 620 is provided with a raindrop sensor 640 electrically connected with the central controller 120; every rainwater header tank 610 all is connected with spray pipe 660 through first pipeline 650, all is provided with the solenoid valve 651 that opens and stop by central controller 120 control on every first pipeline 650, is provided with the high pressure plunger pump 661 that opens and stops by central controller 120 control on the spray pipe 660, is provided with a plurality of high pressure spray guns 662 along the length direction interval of power transmission line 510 on the spray pipe 660, and the export slope of high pressure spray gun 662 upwards sets up. When the raindrop sensor 640 senses that it rains in the sky, a signal is transmitted to the central controller 120 to control the second electric telescopic rod 630 to contract, and the box cover 620 is opened, so that rainwater falls into the rainwater collecting tank 610 to be collected and stored, and water resources can be effectively utilized; when the central controller 120 detects that the distance between the mountain fire target and the tower is smaller than a set value, the electromagnetic valve 651 and the high-pressure plunger pump 661 are controlled to be started, so that high-pressure water is sprayed from the high-pressure water spray gun 662 to relieve the spread of fire, and time is won for fire fighting work of workers. The electromagnetic valve 651 is separately provided on the first pipe 650 corresponding to each rainwater collection tank 610, so that water in the plurality of rainwater collection tanks 610 can be controlled to be sequentially pumped out for fire extinguishing.
Preferably, a first liquid level sensor is disposed inside the rainwater collection tank 610, and the first liquid level sensor is in signal connection with the central controller 120. When the first liquid level sensor detects that the rainwater collecting tank 610 is full of rainwater, a signal is sent to the central controller 120 to control the second electric telescopic rod 630 to extend, and the tank cover 620 covers the rainwater collecting tank 610.
As shown in fig. 1, in some embodiments of the present invention, the fire detection mechanism includes a radar detector 130 and a multispectral camera 110, the radar detector 130 is configured to radiate a millimeter-wave signal to an area to be detected through an antenna 131, receive an echo signal of a mountain fire target, convert the echo signal of the mountain fire target into a corresponding electrical signal, and send the electrical signal to the central controller 120; the camera adopts the multispectral camera 110, the multispectral camera 110 is used for shooting field fire information of a mountain forest near a tower, the shot field fire information is transmitted to the central controller 120, an image of at least one non-fire heat source area is stored in the central controller 120, the central controller 120 determines whether fire exists or not by analyzing the field fire information shot by the multispectral camera 110, the multispectral camera 110 is provided with the far infrared thermometer 140, and the far infrared thermometer 140 is used for detecting flame combustion information in the mountain forest and transmitting the flame combustion information to the central controller 120. In the embodiment of the invention, the multispectral camera 110 is adopted to take a picture of the area where the pole tower is positioned to search the on-site fire information in the mountain forest, the target light wave is divided into a plurality of wave bands according to the wavelength, then, the images of the respective wavelength bands are simultaneously photographed, and the photographed images of the respective wavelength bands are transferred to the central controller 120, the central controller 120 compares the images of the respective bands with the non-fire heat source region images originally stored in the central controller 120, when the temperature of the heat source in the shot image is found to exceed the temperature threshold of the non-fire heat source area, the far infrared thermometer 140 is controlled to start to detect the flame combustion information (combustion temperature) of the mountain forest in the area, the detected flame combustion information (combustion temperature) is fed back to the central controller 120 to be analyzed to obtain the size of the fire, so that the mountain fire and the size of the fire of the mountain fire can be found in time; when mountain fire is found, the radar detector 130 is controlled to radiate millimeter wave signals to an area needing to be detected through the antenna 131, echo signals of the mountain fire target are received, the echo signals of the mountain fire target are converted into corresponding electric signals, the electric signals are sent to the central controller 120 to be analyzed, the position of the mountain fire target and the distance between the mountain fire target and a tower are obtained, and accurate positioning of the mountain fire target is achieved.
As shown in fig. 1, in some embodiments of the present invention, the front-end detection assembly 100 further includes a smoke detector 150 for detecting smoke in real time in an area where a tower of the power transmission line 510 is located, the central controller 120 is electrically connected to the smoke detector 150, the central controller 120 receives a smoke concentration value output by the smoke detector 150, and generates a smoke alarm electrical signal when the smoke concentration value is higher than a set value, and the smoke alarm electrical signal controls the multispectral camera 110 to start for video capture. The smoke detector 150 can detect smoke in the area where the tower is located in real time, the detected smoke concentration value is output to the central controller 120, the central controller 120 monitors the smoke concentration, generates a smoke alarm electric signal when the smoke concentration exceeds a preset value so as to control the multispectral camera 110 and the far infrared thermometer 140 to carry out image acquisition and temperature detection on the area where the smoke is taken, finds fire and feeds back the fire to the background monitoring center 200 so as to remind monitoring personnel of the existence of fire danger, and therefore the monitoring personnel can take measures to eliminate the fire danger in time. The smoke detector 150 can detect smoke in real time, so that fire risks in a smoldering state can be found in time, the fire risks can be controlled in a smoldering stage, and loss is reduced. Meanwhile, the smoke detector 150 and the multispectral camera 110 are combined to work, so that the false alarm rate can be greatly reduced.
As shown in fig. 11 and 12, in some embodiments of the present invention, the radar detector 130 is preferably a multispectral millimeter wave radar detector, as shown in fig. 11, the multispectral millimeter wave radar detector includes a transmitter and a receiver, the transmitter of the multispectral millimeter wave radar amplifies the radio frequency excitation signal from the frequency source, outputs a high-power radio frequency pulse signal, feeds the high-power radio frequency pulse signal to the antenna 131, and radiates the high-power radio frequency pulse signal to the space through the antenna 131; the antenna 131 of the millimeter wave radar detector radiates energy into a narrow beam, so that the power is collected and the direction of a target can be determined; the high amplifier 133 in the multispectral millimeter wave radar detector has the function similar to a low noise amplifier, so that the position of a mountain fire target can be more accurately acquired; the function of the circulator 132 in fig. 11 is to allow the use of a single antenna 131 to protect sensitive receivers from burning out when the transmitter is in operation and to direct received echo signals to the receivers instead of the transmitter, further improving the accuracy of obtaining the location of the mountain fire target. As shown in fig. 12, a schematic diagram of millimeter wave radar target positioning information extraction is used to analyze a millimeter wave radar echo signal, so as to obtain information such as doppler shift, intermediate frequency, and phase difference of a target, thereby obtaining distance and azimuth information of the target, and then positioning the target, thereby obtaining high measurement accuracy.
In some embodiments of the present invention, the central controller 120 employs a C8051f040 single chip microcomputer system, the single chip microcomputer is up to 12-way 12-bit Ad converter, the CPU has an internal crystal, the frequency of the CPU is 24.5M when the CPU operates at full speed, the CPU can operate at a frequency divided into 2M, 4M, 8M, and 16M, and the CPU includes various communication interfaces, such as: I2C, SPI, CAN, serial port and the like, wherein an internal 64K flash CAN be used for storing programs or data, and internal 256 bytes + an external 4K SRAM are integrated, so that the requirement of the device CAN be met.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A multispectral-based power transmission line forest fire survey early warning device comprises a front-end detection assembly and a background monitoring center, wherein the front-end detection assembly comprises a fire detection mechanism and a central controller, the fire detection mechanism is used for detecting field fire information, forest fire combustion information and the distance between a forest fire target and a tower, transmitting the detected field fire information, flame combustion information and the distance between the forest fire target and the tower to the central controller, and the central controller is connected with the background monitoring center through a wireless network; it is characterized in that the preparation method is characterized in that,
the early warning device further comprises a moving mechanism, a fireproof material coating mechanism and guide rods symmetrically arranged on the front side and the rear side of the power transmission line, the moving mechanism is arranged on the two guide rods in a sliding mode and driven by a motor to move left and right along the guide rods, and the motor is electrically connected with the central controller; the fire coating and preventing mechanism comprises a box body fixed on the moving mechanism, and the left side wall and the right side wall of the box body are respectively provided with a first through hole for a power transmission wire to pass through; the upper inner wall, the lower inner wall, the front inner wall, the rear inner wall and the front inner wall of the box body are respectively provided with a first electric telescopic rod, the telescopic end of each first electric telescopic rod is provided with a first arc plate, and when the first electric telescopic rods extend out, the four first arc plates surround a round hole with the aperture larger than that of the power transmission line; every all run through on the first circular arc board and have spouted the stub bar, spout the stub bar and be equipped with the storage tank of fire prevention feed liquid through the conveyer pipe intercommunication, be equipped with on the conveyer pipe by central controller control opens the first pump that stops, be provided with in the box with central controller control opens the heater that stops.
2. The multispectral-based power transmission line forest fire survey early warning device according to claim 1, wherein one end of each first circular arc plate is provided with an elastic circular arc section, one end of each adjacent first circular arc plate, facing the elastic circular arc section, is provided with a circular arc groove matched with the elastic circular arc section, and one end of each elastic circular arc section is embedded in the circular arc groove.
3. The multispectral-based power transmission line forest fire survey early warning device according to claim 2, wherein four storage tanks are arranged, the four storage tanks are respectively mounted on four inner side walls of the upper portion, the lower portion, the front portion and the rear portion of the box body, and the storage tanks located on the same inner side wall of the box body are communicated with the material spraying heads through the conveying pipes in a one-to-one correspondence mode.
4. The multispectral-based power transmission line forest fire survey early warning device according to claim 3, wherein a control valve for controlling flow through the section of the transmission pipe is arranged on the transmission pipe, and the valve size of the control valve is controlled and adjusted by the central controller.
5. The multispectral-based power transmission line forest fire survey early-warning device is characterized in that the moving mechanism comprises a mounting plate, first rollers are arranged on four corners of the mounting plate respectively, a first shaft is connected between the two first rollers at the left end, a second shaft is connected between the two first rollers at the right end, a first gear is arranged on the second shaft, and a second gear meshed with the first gear is arranged on an output shaft of the motor; every all be connected with the second gyro wheel through the connecting plate under the first gyro wheel, first gyro wheel with the second gyro wheel all with the connecting plate rotates and is connected, be formed with between first gyro wheel with the second gyro wheel and supply the clearance that the guide bar passed.
6. The multispectral-based power transmission line forest fire survey early warning device according to claim 5, wherein a second through hole is formed in the lower end of the side wall of the connecting plate, a rotating shaft of the second roller is rotatably connected with the second through hole through a bearing, the second through hole is a long hole distributed in the vertical direction, a spring is arranged in the long hole, one end of the spring is connected with the lower bottom wall of the long hole, and the other end of the spring is connected with the outer peripheral surface of the bearing.
7. The multispectral-based power transmission line forest fire survey early warning device according to claim 5, wherein the motor is arranged in the middle of the lower end of the mounting plate in the front-back direction, a third gear and a fourth gear which are meshed with the second gear are respectively arranged on the left side and the right side of the second gear, and the first gear is meshed with the fourth gear; and a fifth gear is arranged on the first shaft and meshed with the third gear.
8. The multispectral-based power transmission line forest fire survey early warning device according to claim 1, further comprising a plurality of rainwater collection tanks, wherein the upper ends of the rainwater collection tanks are slidably connected with tank covers, the tank covers are driven by a second electric telescopic rod, and the second electric telescopic rod is controlled to be started and stopped by the central controller; the upper surface of the box cover is provided with a raindrop sensor electrically connected with the central controller; every rainwater header tank all has the spray pipe through first pipe connection, every all be provided with on the first pipeline by the solenoid valve that central controller control opened and stop, be provided with on the spray pipe by the high-pressure plunger pump that central controller control opened and stops, be provided with a plurality of high pressure water spray guns along the length direction interval of power transmission line on the spray pipe, the export slope of high pressure water spray gun upwards sets up.
9. The multispectral-based power transmission line forest fire survey early warning device according to claim 1, wherein the fire detection mechanism comprises a radar detector and a multispectral camera, the radar detector is used for radiating millimeter wave signals to an area needing to be detected through an antenna, receiving echo signals of a forest fire target, converting the echo signals of the forest fire target into corresponding electric signals and sending the electric signals to the central controller; the multispectral camera is used for shooting field fire information of a mountain forest and transmitting the shot field fire information to the central controller, the central controller determines whether fire exists or not by analyzing the field fire information shot by the multispectral camera, and the multispectral camera is provided with a far infrared temperature detector which is used for detecting flame combustion information in the mountain forest and transmitting the flame combustion information to the central controller.
10. The multispectral-based power transmission line forest fire survey early warning device according to claim 9, wherein the front-end detection component further comprises a smoke detector for detecting smoke in real time in an area where a tower of the power transmission line is located, the central controller is electrically connected with the smoke detector, receives a smoke concentration value output by the smoke detector, generates a smoke alarm electrical signal when the smoke concentration value is higher than a set value, and controls the multispectral camera to be turned on for video acquisition.
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