CN113984139B - Method for measuring fire extinguishing and sprinkling amount of helicopter fire scene bucket and water collector - Google Patents
Method for measuring fire extinguishing and sprinkling amount of helicopter fire scene bucket and water collector Download PDFInfo
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- CN113984139B CN113984139B CN202111254788.5A CN202111254788A CN113984139B CN 113984139 B CN113984139 B CN 113984139B CN 202111254788 A CN202111254788 A CN 202111254788A CN 113984139 B CN113984139 B CN 113984139B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 126
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000004891 communication Methods 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 239000004744 fabric Substances 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 230000001629 suppression Effects 0.000 claims 3
- 238000011156 evaluation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
- A62C3/0228—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires with delivery of fire extinguishing material by air or aircraft
- A62C3/0242—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires with delivery of fire extinguishing material by air or aircraft by spraying extinguishants from the aircraft
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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Abstract
A method for measuring fire extinguishing and sprinkling amount of a helicopter fire scene bucket and a water collector are provided. The main aim is to provide a method by which the sprinkling skill of a helicopter pilot can be quantitatively evaluated. The method is characterized in that: connecting a plurality of water collectors and then using the water collectors in a fire extinguishing area for simulating sprinkling of a helicopter bucket; sprinkling the fire extinguishing area by a helicopter bucket; measuring the water collection amount in each water collector in the fire extinguishing area after sprinkling water; comparing the obtained water collection amount with a standard amount which needs to be reached by the sprinkling of the helicopter, and judging that the helicopter is qualified when the water collection amount is larger than the standard amount. The water collectors are connected through buckles, and a local Internet of things is established through the Lora transmission module to form a simulated fire scene area; after water is sprayed, the electronic control system receives an instruction to open the electromagnetic valve, the flow sensor detects the water quantity and then transmits a signal to the Lora transmission module of the signal communication system, the signal communication system sends data to the control terminal, and the control terminal gathers and processes the data.
Description
Technical Field
The invention relates to a method and a device applied to the field of helicopter sprinkling.
Background
The forest fire has great threat to the ecological environment, the economic loss caused by the forest fire is rather numerous, especially the forest fire enters spring and autumn, the climate is dry and rainless, and meanwhile, the field fire sources are more, so that the forest fire is very easy to occur. Once forest fires occur, the area is often affected to be large, and hidden fire hidden dangers are many. The traditional fire extinguishing method has low efficiency and great damage to the health of firefighters, and is not a mainstream fire extinguishing mode, so that the efficient helicopter bucket water spraying fire extinguishing mode is particularly important.
The bucket sprinkling fire extinguishing has high requirements on the helicopter driving technology of pilots, and the bucket is greatly influenced by wind power, air pressure, the speed and the gesture of the helicopter and the like in the air, and whether the sprinkling water flow meets the fire extinguishing requirement or not is closely related to the flight state of the helicopter, the sprinkling skill level of the pilot and the like. In the prior art, the bucket watering skills of a helicopter driver are evaluated by adopting a mode of obtaining a watering effect evaluation conclusion according to a large amount of data processed by human subjective treatment, the evaluation method is complex in steps and fuzzy in data, the watering skill level of the pilot is judged only by experience in most cases, the obtained conclusion is not objective and untimely, and the fire scene environment is not accurately simulated, and the evaluation of the pilot bucket watering skills in the evaluation mode cannot objectively reflect the actual watering skills of the driver, so that the pilot is difficult to achieve the skill requirements consistent with the evaluation results in actual bucket watering and fire extinguishing operation.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a method for measuring the fire extinguishing and sprinkling amount of a lifting bucket of a helicopter fire scene and a water collector, and a method for quantitatively evaluating the sprinkling skill of a helicopter pilot on the basis of the method. The water collecting device for realizing the method can be rapidly deployed, rapidly decomposed and wirelessly transmitted with data, compared with the prior pilot sprinkling fire extinguishing skill evaluation method, the method can accurately and rapidly draw the conclusion of the pilot sprinkling skill level, and solves the problems of complicated steps, fuzzy data and insufficient objective conclusion of the prior evaluation method.
The technical scheme of the invention is as follows:
a method for measuring the fire extinguishing and sprinkling amount of a helicopter fire scene bucket is carried out according to the following steps:
connecting a plurality of water collectors and then using the water collectors in a fire extinguishing area for simulating sprinkling of a helicopter bucket;
sprinkling the fire extinguishing area by a helicopter bucket;
after sprinkling, the water collection amount in each water collector in the fire extinguishing area is measured.
By utilizing the method, the sprinkling skill of the helicopter pilot is quantitatively evaluated, and the method is carried out according to the following steps:
connecting a plurality of water collectors and then using the water collectors in a fire extinguishing area for simulating sprinkling of a helicopter bucket;
sprinkling the fire extinguishing area by a helicopter bucket;
measuring the water collection amount in each water collector in the fire extinguishing area after sprinkling water;
comparing the obtained water collection amount with a standard amount which needs to be reached by the sprinkling of the helicopter, and judging the water collection amount to be qualified when the water collection amount is larger than or equal to the standard amount.
In order to realize the water collector of the two methods, the water collector is characterized in that:
the water collectors are connected through buckles, and a local Internet of things is established through the Lora transmission module to form a simulated fire scene area;
after the helicopter bucket is sprayed with water, a control terminal wirelessly transmits an instruction, the instruction is transmitted to a Lora transmission module in a water collector through a local Internet of things, the Lora transmission module transmits the instruction to an electronic control system, an electromagnetic valve is opened after the electronic control system receives the instruction, water in the water collector is discharged through a flow sensor, the flow sensor converts a water flow signal into an analog signal and transmits the analog signal to an A/D conversion module, the A/D conversion module converts the analog signal into a digital signal and transmits the digital signal to the Lora transmission module of a signal communication system, and the Lora transmission module in the signal communication system transmits the digital signal as uplink data to the control terminal, and the control terminal gathers and processes the data.
Preferably, the water collector comprises a foldable canvas bag and a folding frame; the folding frame is provided with a column 1, telescopic legs 6, a lantern ring 10, a connecting sheet 11 and a fastening knob 8, and the canvas bag is provided with a canvas bottom 3 and a steel wire rope 2. In addition, the water collector also comprises a funnel 15, an electronic control system and a signal communication system; the bottom of the canvas pocket is provided with cloth lugs 25, and steel lugs 20 are welded on the telescopic legs 6.
The canvas bottom 3 is stretched by the cloth ears 25 in a vertically downward direction, and the funnel 15 is positioned at the lowest part of the canvas bottom 3; the water outlet 16 of the funnel 15 is sequentially connected with the flow sensor 4 and the electromagnetic valve 5.
The electronic control system comprises a circuit board 19, an electromagnetic valve 5, a flow sensor 4 and a battery compartment 9; the signal communication system comprises a Lora transmission module (101) and an A/D conversion module (18);
the circuit board 19, the Lora transmission module 101 and the A/D conversion module 18 build a MODBUS data bus network through an RS485 port, and the circuit board 19 is a network host; the I/O port of the A/D conversion module 18 is used as a digital output port and connected with the electromagnetic valve 5, and is used for controlling the electromagnetic valve 5 to be opened and closed by the circuit board, so that water discharged from the canvas bag flows through the flow sensor 4; the flow sensor 4 is externally connected with a CANopen port of the A/D conversion module 18 and is used for converting water flow into 4-20 mA analog quantity; the A/D conversion module 18 is externally connected with the flow sensor 4 through a CANopen port and is used for converting 4-20 mA analog quantity transmitted by the flow sensor 4 into digital quantity; the a/D conversion module 18 transmits the digital quantity to the Lora transmission module 101 through the MODBUS data bus network, and is used for remotely and wirelessly outputting the digital quantity to the control terminal for storage, display and analysis; the control terminal is used for summarizing flow data of the water collector, and the control terminal and the Lora transmission module 101 realize bidirectional data flow transmission through a GPRS or 5G data link.
Preferably, the circuit board 19 and the signal communication system are located within the upright 1; the inside of the upright column 1 is connected with the Lora transmission module 101 and the A/D conversion module 18 through bolts. The outside of the upright post 1 is connected with a battery compartment 9 through bolts, and the battery compartment 9 is used for installing a battery to supply power for the electronic control system and the signal communication system through a power supply circuit.
Preferably, the water collector further comprises at least 2 sets of snaps; each group of buckles comprises a male buckle 26 and a female buckle 24, and the male buckles 26 and the female buckles 24 in each group of buckles are distributed on the outer sides of the telescopic legs 6 at intervals of 90 degrees and are used for being connected with other water collectors in a buckling mode.
Preferably, the telescoping leg 6 comprises an outer layer leg 22 and an inner layer leg 23 and a foot margin 7; the inner layer legs 23 are provided with scales for facilitating height adjustment, the inner layer legs and the outer layer legs are provided with bolt holes 21 for facilitating bolt fixation so as to realize adjustment and fixation through bolts after stretching, and the bolts are fastened through fastening knobs 8; the lantern ring 10 is directly sleeved on the outer layer leg 22, can slide on the outer layer leg 22 and is connected with the connecting sheet 11 through bolts, and the connecting sheet 11 is connected with the lantern ring 10 through bolts to form an X-shaped folding frame; the inclination of the foot 7 can be adjusted so that the foot 7 can be inclined.
The invention has the following beneficial effects: the invention can remotely and wirelessly control the opening and closing of the electromagnetic valve, and the measured flow data can be summarized through wireless transmission. The invention has strong terrain adaptability, can simulate the fire field area in the environments such as gentle slope mountain tops, etc., and can be used for unfolding the canvas bag and the folding frame during experiments, then placing the canvas bag on the folding frame, and then adjusting the water collector to be horizontal by adjusting the telescopic legs and the foot margin. Different water collectors are connected through buckles, and the water collectors establish local Internet of things with the control terminal through the Lora transmission module in the upright post to form a simulated fire scene area. After the combination of the simulated fire field areas is completed, the helicopter bucket sprays water in the areas, the electromagnetic valve is remotely opened through the control terminal after the water spraying is completed to release water in the water collector, the water flows through the flow sensor and then is converted into analog quantity to be transmitted to the A/D conversion module, the A/D conversion module converts the analog quantity into digital quantity to be transmitted to the Lora transmission module, the Lora transmission module gathers flow data to the control terminal and then is compared with standard water spraying data, and therefore the conclusion of the water spraying skill level of a pilot can be rapidly obtained on the test site. The invention not only greatly improves the testing speed of the pilot skill level, but also greatly reduces the cost while improving the accuracy.
Description of the drawings:
fig. 1 is a schematic view of the overall assembly of the water collector.
Figure 2 is a general assembly view of the canvas bag.
Fig. 3 is an overall top view of the water collector.
Fig. 4 is a side view and a side cross-sectional view of the column.
Fig. 5 is a schematic view of a telescoping leg assembly.
Fig. 6 is a cross-sectional view of a telescoping leg assembly.
Fig. 7 is a front view of the water collector assembly.
FIG. 8 is a schematic illustration of a plurality of water collectors connected by a snap fit to simulate a helicopter bucket sprinkler fire scene area and snap fit connections between different water collectors.
Fig. 9 is a flow chart of data transmission and module control according to the present invention.
The device comprises a 1-upright post, a 2-wire rope, a 3-canvas bottom, a 4-flow sensor, a 5-electromagnetic valve, a 6-telescopic leg, a 7-foot, an 8-fastening knob, a 9-four-needle aviation plug, a 10-lantern ring, a 11-connecting sheet, a 12-bolt hole, a 13-hole, a 14-foot bolt hole, a 15-funnel, a 16-water outlet hole, a 17-wire rope hole, a 18-A/D conversion module, a 19-circuit board, a 20-steel lug, a 21-bolt hole, a 22-outer leg, a 23-inner leg, a 24-male buckle, a 25-cloth lug, a 26-female buckle and a 101-Lora transmission module.
The specific embodiment is as follows:
the invention is further described below with reference to the accompanying drawings:
the water collector comprises an upright post 1, a steel wire rope 2, a canvas bottom 3, telescopic legs 6, a foot 7, a fastening knob 8, a lantern ring 10, a connecting sheet 11 and a funnel 15. The electronic control system comprises a circuit board 19, an electromagnetic valve 5, a flow sensor 4 and a battery compartment 9; the signal communication system comprises a Lora transmission module 101 and an a/D conversion module 18.
The steel wire rope 2 penetrates through the cloth holes 13 on the outer side of the canvas bottom 3 to penetrate through the canvas bottom and penetrate into the steel wire rope holes 17 of the upright post 1, the steel wire rope 2 and the upright post 1 are fixed through bolts, and the steel wire rope 2 is directly screwed and fixed on the upright post through the bolt holes 12 through bolts. According to the connection mode, the steel wire ropes 2 sequentially penetrate through the outer cloth holes 13 of the canvas bottom 3 and are connected with the four upright posts to form the canvas bag. The canvas bag comprises a water outlet 16, and a funnel 15 is arranged outside the water outlet, so as to facilitate water collection and installation of the electromagnetic valve 5 and the flow sensor 4. The electromagnetic valve 5 and the flow sensor 4 are connected to the funnel 15 through bolts, and the funnel 15 is connected to the canvas bottom 3 through bolts. The battery compartment 9 is connected to the outer side of the upright post 1 through bolts, and the battery is convenient to replace. The battery compartment 9 is connected with the circuit board 19, the circuit board 19 is connected with the Lora transmission module 101 and the A/D conversion module 18, and the battery compartment 9 is provided with a battery for supplying power. The circuit board 19, the Lora transmission module 101 and the a/D conversion module 18 are connected inside the upright post 1 by bolts. The canvas bag can be unfolded rapidly, can be folded after the test is completed, and is convenient to transport.
The folding frame mainly comprises telescopic legs 6, a lantern ring 10, a connecting sheet 11, a fastening knob 8 and a foot margin 7, wherein the foot margin 7 can incline, which is beneficial to controlling water in a canvas bag and ensures more accurate measurement results; the telescoping leg 6 comprises an outer layer leg 22 and an inner layer leg 23, wherein the inner layer leg 23 is graduated to facilitate height adjustment. The inner leg and the outer leg are respectively provided with a bolt hole 21 for facilitating bolt fixing, are adjusted and fixed through the bolts after being stretched, and are fastened through a fastening knob 8 arranged on the telescopic leg 6, so that the stability of the water collector is enhanced; the lantern ring 10 is directly sleeved on the telescopic leg 6, can slide on the telescopic leg 6 and is connected with the connecting piece 11 through a bolt; the connecting piece 11 and the lantern ring 10 are connected through bolts to form an X-shaped folding frame, so that the folding function of the folding frame is realized, the transportation and the assembly are convenient, and the testing speed is greatly increased.
The canvas bag and the folding frame of the water collector can be rapidly unfolded and deployed, the canvas bag and the folding frame are unfolded firstly, the folding frame is adjusted to be horizontal through the telescopic legs 6, the feet 7 and the like, and then the proper position is found through the telescopic legs 6, so that the canvas bag is placed on the folding frame to form the water collector.
The signal communication system mainly comprises an A/D conversion module and a Lora transmission module, wherein the A/D conversion module is connected with the inner side of the upright post through bolts, and the Lora transmission module is connected with the inner side of the upright post through bolts. The electronic control system mainly comprises an electromagnetic valve, a flow sensor, a battery bin and a circuit board, wherein the electromagnetic valve is connected with the flow sensor through threads, the flow sensor is connected to the canvas bottom through threads, and the electromagnetic valve and the flow sensor are connected with the circuit board; the battery bin is connected to the outer side of the upright post through bolts, so that the battery can be replaced conveniently; the battery bin is connected with a circuit board inside the upright post, a battery is arranged inside the battery bin, and the power supply circuit supplies power for the signal communication system and the electronic control system. After the sprinkling of the helicopter bucket is finished, downlink data are sent out at the control terminal, the data are transmitted to a Lora transmission module in the upright post of the water collector through a GPRS or 5G data link, the Lora transmission module receives the downlink data and then transmits the data to a MODBUS data bus network through an RS485 port, the MODBUS data bus network transmits the downlink data to a circuit board through the RS485 port, the circuit board sends digital quantity to the MODBUS data bus network through the RS485 port, the MODBUS data bus network transmits the digital quantity to an A/D conversion module through the RS485 port, the A/D conversion module converts the digital quantity into analog quantity and then outputs the analog quantity to an electromagnetic valve through an I/O port, the electromagnetic valve is controlled to be opened, and water in the water collector is discharged through a flow sensor. The flow sensor converts water flow into analog quantity, the analog quantity is transmitted to the A/D conversion module through the CANopen port, the A/D conversion module converts the analog quantity into digital quantity, the digital quantity is transmitted to the MODBUS data bus network through the RS485 port, the MODBUS data bus network transmits the digital quantity to the Lora transmission module through the RS485 port, and finally the Lora transmission module transmits the measured signal to the control terminal through the GPRS or 5G data link as uplink data for storage, display and analysis processing so as to obtain the sprinkling condition of the helicopter bucket sprinkling simulation fire scene area.
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 and 2, the outer structure of the present invention mainly includes a canvas bag and a folding frame. When the water collector is deployed, the folding frame is unfolded firstly, then the height of the folding frame is adjusted to be horizontal according to the topography, and the canvas bag is unfolded and placed on the folding frame. The canvas bag is formed by connecting a canvas bottom 3 with a steel wire rope 2 in a penetrating manner and then connecting the steel wire rope 2 with the upright column 1 through bolts. The folding frame mainly comprises telescopic legs 6, a lantern ring 10, a connecting sheet 11, a fastening knob 8 and a foot 7, wherein the telescopic legs 6 and the lantern ring 10 are connected through bolts, the foot 7 and the telescopic legs 6 are connected through cotter pins, the lantern ring 10 and the connecting sheet 11 are connected through bolts, and the fastening knob 8 is connected to the telescopic legs 6 through threads.
As shown in fig. 3, the canvas bottom 3 is provided with water outlet holes 16, a funnel 15 is connected to the canvas bottom 3 through bolts, and the foundation 7 is provided with foundation bolt holes 14; the foundation bolt holes 14 can enhance the stability of the water collector relative to the ground by inserting foundation bolts.
As shown in fig. 4, a steel wire rope hole 17 is welded on the outer side of the upright 1, and the steel wire rope 2 is connected with the upright 1 through a bolt hole 12 through a bolt; the outside of the upright post 1 is connected with a battery compartment 9 through bolts, and the battery compartment 9 can be provided with a battery to supply power to an electronic control system and a signal communication system through a power supply circuit; the electronic control system also comprises a circuit board 19, an electromagnetic valve 5, a flow sensor 4 and a battery compartment 9, and the signal communication system comprises a Lora transmission module 101 and an A/D conversion module 18; the circuit board 19, the Lora transmission module 101 and the A/D conversion module 18 build a MODBUS data bus network through an RS485 port, and the circuit board 19 is a network host; the I/O port of the A/D conversion module 18 is used as a digital output port and connected with the electromagnetic valve 5, and is used for realizing that the circuit 19 board controls the electromagnetic valve 5 to be opened and closed, so that water discharged from the canvas bag flows through the flow sensor 4; the flow sensor 4 is externally connected with a CANopen port of the A/D conversion module 18 and is used for converting water flow into 4-20 mA analog quantity; the A/D conversion module 18 is externally connected with the flow sensor 4 through a CANopen port and is used for converting 4-20 mA analog quantity transmitted by the flow sensor 4 into digital quantity; the a/D conversion module 18 transmits the digital quantity to the Lora transmission module 101 through the MODBUS data bus network, and is used for remotely and wirelessly outputting the digital quantity as uplink data to the control terminal for storage, display and analysis processing. The control terminal gathers the flow data of each water collector, obtains the watering effect of helicopter to compare with standard watering effect, rapidly evaluate pilot's bucket watering skill level. The control terminal and the Lora transmission module 101 realize bidirectional data stream transmission through a GPRS or 5G data link.
As shown in fig. 5 and 6, the telescopic leg 6 includes an outer leg 22, an inner leg 23, a buckle 24, a steel lug 20, and a bolt hole 21. The inner layer leg 23 is directly sleeved inside the outer layer leg 22, and scales are drawn on the inner layer leg 23, so that the height can be conveniently adjusted. The inner layer leg 23 and the outer layer leg 22 are provided with bolt holes, and can be fixed by bolts after being adjusted to proper height, and then are fastened by the fastening knob 8. The steel lugs 20 can be connected with the cloth lugs 25 of the canvas bottom 3 through stretching ropes, so that the canvas bottom 3 is supported for convenient water collection.
As shown in fig. 7, the canvas bottom 3 is provided with cloth lugs 25, and the cloth lugs 25 can be connected with the steel lugs 20 of the upright posts 6 through stretching ropes to enable the canvas bottom 3 to be unfolded, so that the water collection efficiency is improved, and the accuracy of evaluating the skill level conclusion of a pilot is improved.
As shown in fig. 8, the water collector is connected into a simulated fire area by a buckle. The buckle group is composed of a male buckle 26 and a female buckle 24, and the male buckle 26 and the female buckle 24 are distributed on the outer side of the outer layer leg 22 of the telescopic leg 6 at 180 degrees and are used for being in buckle connection with other water collectors. The buckle connection is that a male buckle of the first water collector is inserted into a female buckle of the second water collector, and the male buckle of the second water collector is blocked by a female buckle of the third water collector to prevent the water collector from separating; the water collectors are connected to the first row through buckles, and the other water collectors are connected to the second row through the mode expansion of the water collector buckles. Repeating the step of expanding the first row to the second row, and connecting other water collectors to the connected water collectors through buckles until the water collectors are expanded and connected to a plurality of rows to form a water collector group. The water collector group can be used as an area simulating a fire scene and used for sprinkling water to the area by the helicopter bucket. The pilot drives the helicopter to spray water to the bucket above the simulated fire scene area, and after the water spray is finished, the water collection amount of each water collector is measured and compared with the standard amount, so that the level of the water spray skill of the pilot can be intuitively, accurately and rapidly judged. When the fire field area of other sprinkling states is required to be simulated, the number and the coverage scale of the water collectors can be properly adjusted according to the experimental state.
The invention has wide application range in the field of sprinkling fire extinguishment of the helicopter hanging barrels, has strong applicability, simple structure and convenient use and maintenance, and can ensure more accurate and efficient sprinkling fire extinguishment operation of the helicopter hanging barrels.
The working process of the invention is as follows: the canvas bag and the folding frame are utilized to quickly combine into the water collector, the water collector is adjusted to be horizontal according to the terrain through the telescopic legs, and the different water collectors are combined to simulate the fire scene area to form the water collector group. The water collector group and the control terminal establish a local Internet of things through a GPRS or 5G data link to form an analog fire scene area, and then the area is sprayed by the helicopter bucket. After the sprinkling of the helicopter bucket is finished, an instruction is sent out at a control terminal, the instruction is used as downlink data to be transmitted to a Lora transmission module in the upright post of the water collector through a GPRS or 5G data link, the Lora transmission module receives the downlink data and then transmits the downlink data to a MODBUS data bus network through an RS485 port, the MODBUS data bus network transmits the data to a circuit board through the RS485 port, the circuit board sends out digital quantity to the MODBUS data bus network through the RS485 port, the MODBUS data bus network transmits the digital quantity to an A/D conversion module through the RS485 port, the A/D conversion module converts the digital quantity into analog quantity and then outputs the analog quantity to an electromagnetic valve through an I/O port, the electromagnetic valve is controlled to be opened, and water in the water collector is discharged through a flow sensor. The flow sensor converts water flow into analog quantity and transmits the analog quantity to the A/D conversion module through the I/O port, the A/D conversion module converts the analog quantity into digital quantity and transmits the digital quantity to the MODBUS data bus network through the RS485 port, the MODBUS data bus network transmits the digital quantity to the Lora transmission module through the RS485 port, and finally the Lora transmission module transmits the measured signal to the control terminal through the GPRS or 5G data link as uplink data for storage, display and analysis processing. The control terminal gathers the flow data of each water collector, obtains the watering effect of helicopter to compare with standard watering effect, rapidly evaluate pilot's bucket watering skill level. After the test is finished, the device can be rapidly disassembled and folded, and is convenient to transport.
Claims (4)
1. A method for measuring the fire extinguishing and sprinkling amount of a helicopter fire scene bucket, which is characterized by comprising the following steps:
connecting a plurality of water collectors and then using the water collectors in a fire extinguishing area for simulating sprinkling of a helicopter bucket;
sprinkling the fire extinguishing area by a helicopter bucket;
measuring the water collection amount in each water collector in the fire extinguishing area after sprinkling water;
wherein the water collector comprises a foldable canvas bag and a folding frame; the folding frame is provided with an upright post (1), telescopic legs (6), a lantern ring (10), a connecting sheet (11) and a fastening knob (8), and the canvas bag is provided with a canvas bottom (3) and a steel wire rope (2); the method is characterized in that:
the water collector also comprises a funnel (15), an electronic control system and a signal communication system; the bottom of the canvas pocket is provided with cloth lugs (25), and steel lugs (20) are welded on the telescopic legs (6);
the canvas bottom (3) is stretched by the cloth lugs (25) along the vertical downward direction, and the funnel (15) is positioned at the lowest part of the canvas bottom (3); a water outlet (16) of the funnel (15) is sequentially connected with a flow sensor (4) and an electromagnetic valve (5);
the electronic control system comprises a circuit board (19), an electromagnetic valve (5), a flow sensor (4) and a battery compartment (9); the signal communication system comprises a Lora transmission module (101) and an A/D conversion module (18);
the circuit board (19), the Lora transmission module (101) and the A/D conversion module (18) build a MODBUS data bus network through an RS485 port, and the circuit board (19) is a network host; the I/O port of the A/D conversion module (18) is used as a digital output port to be connected with the electromagnetic valve (5) and used for controlling the electromagnetic valve (5) to be opened and closed by the circuit board so that water discharged from the canvas bag flows through the flow sensor (4); the flow sensor (4) is externally connected with a CANopen port of the A/D conversion module (18) and is used for converting water flow into 4-20 mA analog quantity; the A/D conversion module (18) is externally connected with the flow sensor (4) through a CANopen port and is used for converting 4-20 mA analog quantity transmitted by the flow sensor (4) into digital quantity; the A/D conversion module (18) transmits the digital quantity to the Lora transmission module (101) through the MODBUS data bus network and is used for remotely and wirelessly outputting the digital quantity to the control terminal for storage, display and analysis processing; the control terminal is used for summarizing flow data of the water collector, and the control terminal and the Lora transmission module (101) realize bidirectional data flow transmission through a GPRS or 5G data link.
2. A method of measuring the fire suppression and sprinkler rate of a helicopter fire scene bucket according to claim 1, wherein:
the circuit board and the signal communication system are positioned in the upright post (1); the inside of the upright post (1) is connected with the Lora transmission module (101) and the A/D conversion module (18) through bolts;
the outside of the upright post (1) is connected with a battery compartment (9) through a bolt, and the battery compartment (9) is used for installing a battery to supply power for the electronic control system and the signal communication system through a power supply circuit.
3. A method of measuring the fire suppression and sprinkler rate of a helicopter fire scene bucket according to claim 2, wherein: the water collector also comprises at least 2 groups of buckles; each group of buckles comprise a male buckle (26) and a female buckle (24), and the male buckles (26) in each group of buckles are distributed on the outer sides of the telescopic legs (6) at intervals of 90 degrees with the female buckle (24) and are used for being connected with other water collectors in a buckling mode.
4. A method of measuring the fire suppression and sprinkler rate of a helicopter fire scene bucket according to claim 3, wherein:
the telescopic leg (6) comprises an outer layer leg (22), an inner layer leg (23) and a foot margin (7); the inner layer legs (23) are provided with scales for facilitating height adjustment, the inner layer legs and the outer layer legs are provided with bolt holes (21) for facilitating bolt fixation, so that the bolts are adjusted and fixed through the bolts after being stretched, and the bolts are fastened through the fastening knob (8); the lantern ring (10) is directly sleeved on the outer layer leg (22), can slide on the outer layer leg (22), is connected with the connecting sheet (11) through a bolt, and the connecting sheet (11) is connected with the lantern ring (10) through a bolt to form an X-shaped folding frame; the inclination of the foot (7) can be adjusted so that the foot (7) can be inclined.
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