CN111829839A - Fire scene sampling device and sampling method thereof - Google Patents
Fire scene sampling device and sampling method thereof Download PDFInfo
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- CN111829839A CN111829839A CN202010786474.9A CN202010786474A CN111829839A CN 111829839 A CN111829839 A CN 111829839A CN 202010786474 A CN202010786474 A CN 202010786474A CN 111829839 A CN111829839 A CN 111829839A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot
- G05D1/0011—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot associated with a remote control arrangement
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot
- G05D1/0011—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot associated with a remote control arrangement
- G05D1/0038—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot associated with a remote control arrangement by providing the operator with simple or augmented images from one or more cameras located onboard the vehicle, e.g. tele-operation
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0231—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0255—Control of position or course in two dimensions specially adapted to land vehicles using acoustic signals, e.g. ultra-sonic singals
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0268—Control of position or course in two dimensions specially adapted to land vehicles using internal positioning means
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0276—Control of position or course in two dimensions specially adapted to land vehicles using signals provided by a source external to the vehicle
- G05D1/0278—Control of position or course in two dimensions specially adapted to land vehicles using signals provided by a source external to the vehicle using satellite positioning signals, e.g. GPS
Abstract
The invention discloses a fire scene sampling device and a sampling method thereof, wherein the sampling device comprises a control box and a sampling trolley, the sampling trolley is driven by a driving motor and a driving bottom plate, and a gas sampler and a gas storage tank are also fixedly arranged on the sampling trolley; the control box is in communication connection with the sampling trolley through the wireless communication module, a control module for controlling the sampling trolley is arranged in the control box, and the control module is connected with the wireless communication module; meanwhile, a detection unit is also arranged on the sampling trolley; according to the invention, the sampling trolley which can be infinitely remotely controlled transports the sampling equipment to a fire scene with high risk and finishes the collection operation of gas samples, so that unmanned sampling on the fire scene is realized, the safety threat on workers is greatly reduced, and the rapid work of gas sampling in complex and dangerous environments such as the fire scene is realized.
Description
Technical Field
The invention relates to the technical field of fire sampling equipment, in particular to a fire scene sampling device and a sampling method thereof.
Background
Along with the continuous combustion in the fire scene, a large amount of substances and smoke can be generated in the fire scene, especially, fire accidents in hazardous places are accompanied by a large amount of explosive gases, so that in order to quickly know the actual situation of the fire scene, a fire fighter or a related worker generally carries a sampling device to enter dangerous places such as the fire scene for on-site sampling, the degree of danger is very high, the time and the area of entering the fire scene can be generally limited in order to ensure the safety of the worker, but the mode can cause serious information loss in the high-risk area of the fire scene where a large amount of data is urgently needed by one hand, the fire scene is influenced, and meanwhile, guidance can not be provided for the on-site scientific fire scene.
Disclosure of Invention
Aiming at the defects of low safety and incomplete data in the prior art, the invention discloses a fire scene sampling device, which realizes remote unmanned sampling of a fire scene, can realize sample collection without a worker entering the fire scene, greatly improves the sampling efficiency and simultaneously ensures the safety of the worker.
A fire scene sampling device comprises a control box and a sampling trolley, wherein the sampling trolley comprises a rack and a driving chassis fixed at the bottom of the rack, a driving motor and a PCB control panel which are mutually connected are arranged on the rack, and the PCB control panel is also connected with a storage battery; the PCB control panel is connected with the wireless communication module fixed on the rack; a gas sampler connected with the PCB control panel is fixedly arranged on the frame, and the outlet end of the gas sampler is connected with a gas storage tank; the rack is also provided with a detection unit for sensing the surrounding environment, and the detection unit is connected with the PCB control board; the control box is also internally provided with a control module and a storage battery which are connected with each other, and the control module is connected with a wireless communication module fixed in the control box.
Preferably, the number of the gas storage tanks is 3-5, the gas storage tanks are independent from each other and are respectively connected with the outlet end of the gas sampler through electromagnetic valves.
Preferably, the detection unit comprises a GPS positioning module and a gyroscope module, and the GPS module and the gyroscope module are respectively connected with the PCB control board.
Preferably, the detection unit further comprises an ultrasonic obstacle avoidance module connected with the PCB control board.
Preferably, the control module is provided with an industrial personal computer and an operation module, the operation module is connected with the industrial personal computer, and the industrial personal computer is connected with the wireless communication module; the detection unit further comprises a camera and an audio and video module, and the audio and video module and the camera are connected with the PCB control panel.
Preferably, the rack is further provided with a gas detection device connected with the PCB control board, and an inlet section of the gas detection device is connected with an outlet end of the gas sampler.
Correspondingly, the invention also discloses a sampling method of the fire scene sampling device, which is characterized by comprising the following steps:
s1, starting the sampling trolley through the control box, setting a sampling point at the same time, and automatically planning a motion path by the system according to the start point coordinate and the end point coordinate of the sampling trolley;
s2, the sampling trolley moves to the sampling point according to the planned movement path, the detection unit is started to detect the environment around the path, meanwhile, various data obtained by the detection unit are transmitted to the control box,
s3, combining the positioning parameters of the GPS positioning module, starting the gas sampler after reaching the sampling point, and simultaneously only starting one electromagnetic valve, wherein the electromagnetic valve is closed after the air extracted by the gas sampler enters the gas storage tank;
s4, when the gas sampler feeds sample gas into the gas storage tank, gas is fed into the gas detection device through the branch pipe, so that preliminary detection of gas components is realized, and detection data are sent to the control box in real time;
and S5, repeating the steps S3 and S4 to finish sampling each sampling point and return to the starting point.
Preferably, in step S2, the worker can also manually control the sampling trolley to freely cruise in the fire scene through the operation module, and observe the actual situation in the fire scene through the camera, and at the same time, manually control to sample in any area.
Preferably, the step S4 and the step S5 further include a real-time detection step, wherein: the PCB control panel control gas sampler also is in operating condition when non-sampling point, closes all solenoid valves simultaneously, and the sample gas of extraction directly enters into gas detection device and directly discharges after detecting, detects data real-time transfer to the control box simultaneously.
Compared with the prior art, the invention has the following beneficial effects:
1. the sampling trolley is driven by a driving motor and a driving bottom plate, and a gas sampler and a gas storage tank are fixedly arranged on the sampling trolley; the control box is in communication connection with the sampling trolley through a wireless communication module; the control box is internally provided with a control module for controlling the sampling trolley, and the control module is connected with the wireless communication module; meanwhile, a detection unit is also arranged on the sampling trolley and used for sensing the surrounding environment of the fire scene; when the sampling trolley is used, the sampling trolley detects the situation around a fire scene through the detection unit, related data are transmitted to the controller through the wireless communication module, workers control the sampling trolley to move to corresponding sampling points, and gas samples are collected through the gas sampler, so that unmanned sampling of gas in the fire scene is completed;
compared with the prior art, the sampling device is moved to a sampling place through the remotely controlled sampling trolley, and workers can finish sampling without entering a fire scene in person, so that the safety threat of the workers is greatly reduced, and the rapid gas sampling work in complex and dangerous environments such as a fire scene is realized.
2. The number of the gas storage tanks is 3-5, the gas storage tanks are mutually independent and are respectively connected with the gas sampler through electromagnetic valves; sampling work in different places of a working site is realized, and multiple times of sampling can be realized by reciprocating the sampling trolley once, so that the sampling efficiency is greatly improved; meanwhile, sample confusion among different places is avoided, and the purity of the sample and the accuracy of field monitoring are ensured.
3. The detection unit comprises a GPS positioning module, a gyroscope module and an ultrasonic obstacle avoidance module, wherein the GPS positioning module positions the position of the sampling trolley in real time to realize accurate control of a sampling point and a movement position, and the gyroscope module is used for sensing the movement form of the sampling trolley, so that the accuracy of movement posture control of the sampling trolley is improved, and rollover is avoided; meanwhile, the ultrasonic pen obstacle avoidance module senses obstacles on a movement route in real time, the module realizes automatic control over the sampling trolley, accuracy of sensing the surrounding environment by the sampling trolley is improved, and certainty and safety of automatic control over the trolley are guaranteed.
4. The control module of the invention comprises an industrial personal computer and an operation module for manually controlling the sampling trolley, the operation module is connected with the industrial personal computer, the industrial personal computer is connected with the wireless communication module to realize the sending of the control signal, and the sampling trolley is also provided with a camera and an audio-video module, and the camera is connected with the PCB control panel through the audio-video module; the camera collects visual information around the sampling trolley, and video streams are formed after the video information is processed by the audio and video module, the video streams are transmitted to the industrial control computer at the rear through the wireless communication module, workers watch related videos through the industrial control computer, and send corresponding control commands through the operation module, so that accurate manual control over the sampling trolley is achieved, the stability and the reliability of control are improved, meanwhile, the adaptability of the sampling trolley to emergency situations is also improved, and the safe operation of the sampling trolley is guaranteed.
5. The air composition of a fire scene is monitored by the gas detection device through the gas detection device fixedly arranged on the rack, so that on one hand, the approximate composition of the sampler can be known for a short time, and when a certain index with higher risk exceeds the standard, a worker can conveniently take corresponding countermeasures according to actual conditions; on the other hand, the real-time detection of the fire scene environment is realized through the uninterrupted operation of the gas detection device, so that hidden danger points can be found in time, workers can adjust a sampling plan according to real-time parameters of the fire scene, relevant parameters of the fire scene are perfected, and the accuracy of the fire scene environment cognition is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the sampling trolley of the present invention;
reference numerals: 1. the device comprises a control box, 2, a sampling trolley, 3, a PCB control panel, 4, a storage battery, 5, a wireless communication module, 6, a gas sampler, 7, a gas storage tank, 8, a detection unit, 9, a control module, 10, an electromagnetic valve, 11, a gas detection device, 21, a frame, 22, a drive chassis, 23, a drive motor, 81, a GPS positioning module, 82, a gyroscope module, 83, an ultrasonic obstacle avoidance module, 84, a camera, 85, an audio/video module, 91, an industrial control computer, 92 and an operation module.
Detailed Description
The invention will be further illustrated by the following specific embodiments:
embodiment mode 1
The embodiment is used as a basic embodiment of the invention, and discloses a fire scene sampling device, which has a specific structure shown in fig. 1 and fig. 2, and comprises a control box 1 and a sampling trolley 2, wherein the sampling trolley 2 comprises a rack 21, a driving chassis 22 is fixedly connected to the bottom of the rack 21, a driving motor 23 connected with the driving chassis 22 is arranged on the rack 21, the driving chassis 22 is a crawler-type moving chassis, and the driving motor 23 is fixedly arranged on the rack 21; meanwhile, the PCB control board 3 and the storage battery 4 are fixedly arranged on the rack 21, the wireless communication module 5 is fixedly arranged on the rear side of the rack 21, the detection unit 8 for sensing the surrounding environment of the sampling trolley is also arranged on the rack 21, and the detection unit 8 comprises a GPS positioning module 81, a gyroscope module 82, an ultrasonic obstacle avoidance module 83 for avoiding obstacles, a camera 84 and an audio and video module 85 for processing video streams;
the GPS positioning module 81 and the gyroscope module 82 are connected with a signal input end of the PCB control panel 3 through RS485 buses, two ultrasonic obstacle avoidance modules 83 are arranged, are respectively positioned at the front end and the rear end of the rack 81 and are also connected with the signal input end of the PCB control panel 3 through the RS485 buses, the camera 84 is connected with the audio and video module 85 through the RS485 buses, and the audio and video module 85 is integrated on the PCB control panel 3, so that shot images are converted into audio and video streams to be transmitted to the control box 1; (ii) a The output end of the PCB control board 3 is connected with a driving motor 23, and the driving motor 23 adopts a direct current servo motor; meanwhile, the storage battery 4 is connected with the PCB control board 3 to supply power to the whole set of equipment; the rack 21 is also provided with a charging interface connected with the PCB control board 3; meanwhile, the signal input end of the PCB control board 3 is also in communication connection with the wireless communication module 5; the PCB control panel 3 is a single chip microcomputer control panel, and a 32-bit RAM chip is integrated on the single chip microcomputer control panel and serves as a master control chip;
the frame 21 is also fixedly provided with a gas sampler 6 for collecting a gas sample, the gas sampler 6 is driven by a peristaltic pump, and the peristaltic pump is powered by a storage battery; the PCB control board 3 controls the peristaltic pump by controlling the on-off of the power supply, so as to control the work of the gas sampler 6; meanwhile, according to the requirement, 3-5 gas storage tanks 7 are also arranged on the frame 21, the gas inlet ends of the gas storage tanks 7 are respectively provided with electromagnetic valves 10, each electromagnetic valve 10 is respectively connected with the PCB control board 3, and each gas storage tank 7 is communicated with the outlet end of the gas sampler 6 through connectors such as a tee joint, a five-way joint and the like;
a control module 9 and a wireless communication module 5 which are connected with each other are arranged in the control box 1, and the control module 9 adopts a computer which is connected with the wireless communication module 5; and a storage battery 4 for supplying power to the equipment is also arranged in the control box 1.
A control module 9 and a wireless communication module 5 are arranged in the control box 1, the control module 9 comprises an industrial personal computer 91 and an operation module 92, the operation module 92 is connected with the industrial personal computer 91 through an RS485 bus, the operation module 92 is an operation rod, an operation button and the like which are matched with the driving chassis 22, and the operation rod and the operation button are integrated into an integral module; meanwhile, the case 21 is also provided with an audible and visual alarm device 12, and the audible and visual alarm device 12 is connected with an industrial control computer 91;
meanwhile, a gas detection device 11 is fixedly arranged on the frame 21, and a gas inlet pipe of the gas detection device 11 is communicated with a gas outlet pipe of the gas sampler 6, so that the main components of the gas are monitored in real time when the gas is collected, and meanwhile, the monitoring device is a six-in-one sensor; the air outlet end of the gas detection device 11 is directly communicated with the outside atmosphere, and air is directly discharged after detection is finished, so that confusion with subsequent detection gas is avoided.
Embodiment mode 2
As a preferred embodiment of the present invention, the present invention discloses a fire scene sampling method, which is characterized by comprising the following steps:
s1, starting the sampling trolley by the staff through the control box, setting sampling points through the control box, and determining the positions and the number of the sampling points by the staff; the system automatically plans a motion path according to the start point coordinate and the end point coordinate of the sampling trolley and by combining with a corresponding topographic map;
s2, driving the sampling trolley to move to the sampling point according to the planned movement path by the driving motor, and simultaneously positioning in real time through the GPS positioning module and continuously correcting the movement track; the sampling trolley moves automatically, meanwhile, the detection unit is started to detect the environment around the path, and meanwhile, various data obtained by the detection unit are transmitted to the control box;
s3, combining the positioning parameters of the GPS positioning module, starting the gas sampler after reaching the sampling point, simultaneously only starting one electromagnetic valve, closing the electromagnetic valve after the air extracted by the gas sampler enters the gas storage tank, and simultaneously ensuring that the electromagnetic valve is in a working state by the PCB control board and is always in a closed state before manually releasing the state;
s4, when the gas sampler feeds sample gas into the gas storage tank, gas is fed into the gas detection device through the branch pipe, so that preliminary detection of gas components is realized, and detection data are sent to the control box in real time;
and S5, repeating the steps S3 and S4 to finish sampling each sampling point and return to the starting point.
Real-time mode 3
As a preferred embodiment of the present invention, the present invention discloses a fire scene sampling method, which is characterized by comprising the following steps:
s1, setting corresponding sampling points in advance through a control box by workers according to the actual situation of a fire scene; then starting the sampling trolley through the control box, and simultaneously controlling the movement direction and the movement speed of the trolley by a worker through the operation module;
s2, in the process that a worker controls the sampling trolley to move to a sampling point, a real-time picture shot by the camera and a real-time positioning parameter of the GPS positioning module are simultaneously displayed on the control box, and the worker controls the sampling trolley to avoid obstacles by combining the corresponding parameter and the real-time picture and simultaneously moves to the sampling point;
s3, after the staff confirms that the sampling trolley reaches a sampling point by combining the positioning parameters of the GPS positioning module, starting the gas sampler, and simultaneously only starting one electromagnetic valve, wherein the electromagnetic valve is closed after the air extracted by the gas sampler enters the gas storage tank, and meanwhile, the PCB control board confirms that the electromagnetic valve is in a working state and is always in a closed state before the state is manually released;
s4, when the gas sampler feeds sample gas into the gas storage tank, gas is fed into the gas detection device through the branch pipe, so that preliminary detection of gas components is realized, and detection data are sent to the control box in real time;
and S5, repeating the steps S3 and S4 to finish sampling each sampling point and return to the starting point.
Real-time mode 4
As another preferred embodiment of the present invention, there is disclosed a fire scene sampling method, comprising:
s1, controlling the sampling trolley to freely cruise in the fire scene through an operation module on the control box according to the actual situation of the fire scene by a worker;
s2, in the process of movement of the sampling trolley, a real-time picture shot by the camera and a real-time positioning parameter of the GPS positioning module are simultaneously displayed on the control box, and a worker controls the sampling trolley to avoid obstacles by combining the corresponding parameter and the real-time picture and simultaneously knows the real-time position of the sampling trolley in a fire scene;
s3, in the movement process of the sampling trolley, the gas sampler is always in a working state, all electromagnetic valves are closed at the same time, gas collected by the gas sampler directly enters the gas detection device for real-time primary sample detection, the detection result is fed back to the control box in real time, a corresponding content curve is generated, and a worker automatically determines sampling points according to the content curve and executes sampling operation;
and S4, returning to the starting point after the whole fire scene cruising and sampling are completed.
When the sampling trolley is used, a worker starts the sampling trolley through the control box and sets a corresponding sampling place; the sampling trolley is positioned through the GPS positioning module, the motion state of the sampling trolley is monitored through the gyroscope module, meanwhile, in the motion process, the obstacles on the motion route are monitored through the ultrasonic obstacle avoidance module, the implementation picture is shot through the camera, and the implementation picture is transmitted to the rear control box; after the sampling trolley arrives at a designated place, the PCB control board controls the gas sampler to complete gas sampling, and simultaneously all data are transmitted to the control box in real time through the wireless communication module, so that the automatic control of the sampling trolley is realized;
the working personnel can also realize the manual control of the sampling trolley through the operation module, and simultaneously know the condition of the motion path in real time by combining the picture shot by the camera, thereby ensuring the safe operation of the sampling trolley; when gas sampling is required to be carried out at a plurality of different places, different pipelines are switched through the electromagnetic valve.
Compared with the prior art, the sampling trolley can be remotely controlled to move the gas sampler into a fire scene with high risk degree to realize sampling of gas in the fire scene, and workers only need to operate at the back, so that the direct contact between the workers and the fire scene is avoided, and the safety of the workers is greatly improved; the gas sampling device realizes the rapid work of gas sampling in complex and dangerous environments such as fire fields.
Claims (9)
1. The utility model provides a scene of fire sampling device, includes control box (1) and sampling dolly (2), its characterized in that: the sampling trolley (2) comprises a rack (21) and a driving chassis (22) fixed at the bottom of the rack (21), wherein a driving motor (23) and a PCB control board (3) which are mutually connected are arranged on the rack (21), and the PCB control board (3) is also connected with a storage battery (4); a wireless communication module (5) which is in communication connection with each other is further arranged between the control box (1) and the rack (21), and the PCB control board (3) is connected with the wireless communication module (5) fixed on the rack (21); a gas sampler (6) connected with the PCB control board (3) is fixedly arranged on the frame (21), and the outlet end of the gas sampler (6) is connected with a gas storage tank (7); the rack (21) is also provided with a detection unit (8) for sensing the surrounding environment, and the detection unit (8) is connected with the PCB control board (3); the control box (1) is also internally provided with a control module (9) and a storage battery (4) which are connected with each other, and the control module (9) is connected with a wireless communication module (5) fixed in the control box (1).
2. A fire scene sampling device according to claim 1, wherein: the gas storage tank (7) is provided with 3-5, the gas storage tanks (7) are independent of each other and are connected with the outlet end of the gas sampler (6) through the electromagnetic valve (10) respectively.
3. A fire scene sampling device according to claim 1, wherein: the detection unit (8) comprises a GPS positioning module (81) and a gyroscope module (82), and the GPS module (81) and the gyroscope module (82) are connected with the PCB control board (3) respectively.
4. A fire scene sampling device according to claim 3, wherein: the detection unit (8) further comprises an ultrasonic obstacle avoidance module (83) connected with the PCB control board (3).
5. A fire scene sampling device according to claim 1, wherein: the control module (9) is provided with an industrial personal computer (91) and an operation module (92), the operation module (92) is connected with the industrial personal computer (91), and the industrial personal computer (91) is connected with the wireless communication module (5); the detection unit (8) further comprises a camera (84) and an audio and video module (85), and the audio and video module (85) and the camera (84) are connected with the PCB control board (3).
6. A fire scene sampling device according to claim 1, wherein: the frame (21) is further provided with a gas detection device (11) connected with the PCB control panel (3), and the inlet end of the gas detection device (11) is connected with the outlet end of the gas sampler (6).
7. A fire scene sampling method, comprising the steps of:
s1, starting the sampling trolley through the control box, setting a sampling point at the same time, and automatically planning a motion path by the system according to the start point coordinate and the end point coordinate of the sampling trolley;
s2, the sampling trolley moves to the sampling point according to the planned movement path, the detection unit is started to detect the environment around the path, meanwhile, various data obtained by the detection unit are transmitted to the control box,
s3, combining the positioning parameters of the GPS positioning module, starting the gas sampler after reaching the sampling point, and simultaneously only starting one electromagnetic valve, wherein the electromagnetic valve is closed after the air extracted by the gas sampler enters the gas storage tank;
s4, when the gas sampler feeds sample gas into the gas storage tank, gas is fed into the gas detection device through the branch pipe, so that preliminary detection of gas components is realized, and detection data are sent to the control box in real time;
and S5, repeating the steps S3 and S4 to finish sampling each sampling point and return to the starting point.
8. A fire scene sampling method according to claim 7, wherein: in the step S2, the worker may also manually control the sampling trolley to freely cruise in the fire scene through the operation module, and observe the actual situation in the fire scene through the camera.
9. A fire scene sampling method according to claim 7, wherein: and a real-time detection step is also included between the steps S4 and S5, the PCB control board controls the gas sampler to be in a working state when the gas sampler is not at a sampling point, all electromagnetic valves are closed simultaneously, the extracted sample gas directly enters the gas detection device and is directly discharged after detection, and simultaneously detection data are transmitted to the control box in real time.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113335399A (en) * | 2021-06-17 | 2021-09-03 | 仁安建设科技集团有限公司 | Tank type fire engine actuating mechanism |
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| CN113335399B (en) * | 2021-06-17 | 2022-04-12 | 仁安建设科技集团有限公司 | Tank type fire engine actuating mechanism |
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