CN112211665A - Portable subregion wisdom fire control unit in tunnel based on BIM technique - Google Patents
Portable subregion wisdom fire control unit in tunnel based on BIM technique Download PDFInfo
- Publication number
- CN112211665A CN112211665A CN202011078342.7A CN202011078342A CN112211665A CN 112211665 A CN112211665 A CN 112211665A CN 202011078342 A CN202011078342 A CN 202011078342A CN 112211665 A CN112211665 A CN 112211665A
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- Prior art keywords
- tunnel
- wall
- fire fighting
- box
- bim
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/18—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with elements moving in a straight line, e.g. along a track; Mobile sprinklers
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Abstract
The invention discloses a mobile intelligent partitioned fire fighting device for a tunnel based on a BIM technology, and relates to the technical field of tunnel fire fighting; the problem of the spraying area of the tunnel fire-fighting spray head is solved; the novel tunnel is characterized by comprising a ground rail embedded in the ground surface of the tunnel and a top plate fixed on the inner top surface of the tunnel, a main box is slidably connected to the outer wall of the top of the ground rail, auxiliary boxes are respectively arranged on the outer walls of the two sides of the main box, a PLC control system is arranged on the outer wall of the back of one of the auxiliary boxes, a box door is arranged on the outer wall of the front of the main box, a guide rail is arranged on the outer wall of the front of the box door, cameras are arranged on the outer walls of the front of the two auxiliary box tops, a reciprocating lifting mechanism is arranged in the main box, a T-shaped mounting plate is arranged on the outer wall, close to one side of. The invention promotes the rapid solution of the fire fighting state in the tunnel and improves the fire fighting safety in the tunnel.
Description
Technical Field
The invention relates to the technical field of tunnel fire fighting, in particular to a mobile partitioned intelligent fire fighting device for a tunnel based on a BIM (building information modeling) technology.
Background
Along with the development of the society, the BIM technology becomes an important technical support for intelligent traffic information construction, a tunnel mobile partition intelligent fire fighting device based on the BIM technology is constructed, a tunnel Building Information Model (BIM) is introduced into the tunnel mobile partition intelligent fire fighting device, and the visualization, digitization and intelligent levels of tunnel fire fighting can be improved.
Through retrieval, the patent with the Chinese patent application number of CN201710529426.X discloses a tunnel mobile type partition intelligent fire-fighting device and method based on the BIM technology, and the tunnel mobile type partition intelligent fire-fighting device comprises a mobile control module, an automatic spray head module, an illumination and monitoring probe module and a smoke and fire detector module, wherein the automatic spray head module, the illumination and monitoring probe module and the smoke and fire detector module are connected with the mobile control module; still include scalable pipeline, pressure device, fire control water supply point, wireless communication module, BIM wisdom fire control work platform, work track, overhaul the track. In the patent, the tunnel mobile partition intelligent fire-fighting device and method based on the BIM technology have the following defects:
although the whole mechanism achieves the effect of tunnel fire protection, how to spray water for fire extinguishing is not elaborated in the automatic spray head module, and the spraying area of the spray head is also not elaborated, so that a tunnel mobile partition intelligent fire protection device based on the BIM technology is urgently needed.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a tunnel mobile partition intelligent fire fighting device based on a BIM (building information modeling) technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
a tunnel movable type partition intelligent fire fighting device based on BIM technology comprises a ground rail embedded in the earth surface of a tunnel and a top plate fixed on the inner top surface of the tunnel, wherein the outer wall of the top of the ground rail is slidably connected with a main box, the outer walls of the two sides of the main box are respectively provided with an auxiliary box, the outer wall of the back surface of one auxiliary box is provided with a PLC control system, the outer wall of the front surface of the main box is provided with a box door, the outer wall of the front surface of the box door is provided with a guide rail, the outer walls of the front surfaces of the top of the two auxiliary boxes are provided with cameras, the main box is internally provided with a reciprocating lifting mechanism, the outer wall of the reciprocating lifting mechanism close to one side of the guide rail is provided with a T-shaped mounting plate, a cavity is reserved inside the T-shaped mounting plate, the outer, and one side outer wall of maintenance board is provided with the motor, and one side outer wall of maintenance board is provided with the inlet tube, and water delivery hose one end is connected with the inlet tube, and roof one side inner wall is provided with the screw rod, and main part roof cup joints on the circumference of screw rod through the connecting block.
Preferably: the reciprocating lifting mechanism comprises two groups of planetary gear rotating assemblies, a linkage rod, two belt pulleys, a transmission belt and two rotating shafts, and the two rotating shafts are fixed on the inner wall of one side of the maintenance plate through bearings respectively.
Further: the two belt pulleys are respectively sleeved on the outer walls of the circumferences of the two rotating shafts, and the transmission belt is sleeved on the circumferences of the two belt pulleys.
On the basis of the scheme: each group of planetary gear rotating assemblies comprises a guide rod, a first planetary gear, a main gear, a second planetary gear and a triangular fixing frame, and the main gear is sleeved at one end of one rotating shaft.
The better scheme in the scheme is as follows: the first planetary gear and the second planetary gear are meshed with the circumferential teeth of the main gear sequentially through the triangular fixing frame, and the guide rod is connected to the bottom end of the triangular fixing frame through the rotating shaft.
As a further scheme of the invention: the two ends of the linkage rod are respectively connected with the end parts of the two guide rods through rotating shafts, and the T-shaped mounting plate is connected with one side of the linkage rod through bolts.
And further: the outer walls of two sides of the main box are provided with through holes, and the opposite sides of the two auxiliary boxes are provided with communication holes, and the aperture of each communication hole is the same as that of each through hole.
Simultaneously, the camera is connected with image analysis processing system through the signal line, and image analysis processing system is connected with PLC control system input through the signal line, and PLC control system has BIM platform in coordination through electric connection.
As a preferable aspect of the present invention: the output end of the PLC control system is connected with a water supply system through a signal line, and the motor and the driving mechanism are connected with the output end of the PLC control system through a wire.
The invention has the beneficial effects that:
1. the tunnel movable type partition intelligent fire fighting device based on the BIM technology is provided with a rotating shaft which drives one of the rotating shafts to rotate through a motor when in work, simultaneously drives one of the belt pulleys to be provided with a device for rotating, and is provided with a device for promoting the two main gears to be provided with devices for rotating in the same direction at the same time through a transmission belt, at the moment, the two groups of planetary gear rotating assemblies do circular motion and drive the linkage rods arranged between the two guide rods to do vertical high-low motion, thereby effectively promoting the T-shaped mounting plate at one side to be provided with a nozzle which can spray water back and forth in a high-low way, and then effectively promoted the quick solution of the interior fire control tense of tunnel, improved the security of fire control in the tunnel, also promoted the spatiality of shower nozzle water spray simultaneously, strengthened the management of tunnel fire control.
2. This a portable subregion wisdom fire control unit in tunnel based on BIM technique when the main part case slides on the ground rail, can effectively shoot and transmit the condition of intensity of a fire in the tunnel through two cameras, is favorable to the fire fighter to observe and study the intensity of a fire in the tunnel, has improved the efficiency that the fire fighter controlled the intensity of a fire in to the tunnel.
3. This a portable subregion wisdom fire control unit in tunnel based on BIM technique, when taking place the condition of a fire in the tunnel, the camera can be shot the condition of a fire, the image information that the shooting reachs can convey to image analysis processing system through the signal line, by its image analysis and processing to acquireing, and through the signal line with condition of a fire information transmission to PLC control system, at this moment, BIM is in coordination with the platform and will predetermine condition of a fire processing scheme passing signal line transmission to PLC control system, carry out analysis and processing with the plan information by PLC control system, and through wire control motor, actuating mechanism and water supply system begin work, the emergency efficiency of tunnel fire control has been improved greatly, personnel and the property safety of the personnel in distress in the tunnel have been reduced.
Drawings
Fig. 1 is a schematic view of a main view structure of a mobile intelligent fire fighting device with partitioned zones for a tunnel based on the BIM technology;
FIG. 2 is a schematic diagram of a back structure of a mobile intelligent fire fighting device with partitioned zones for tunnel based on BIM technology according to the present invention;
FIG. 3 is a schematic diagram of the internal structure of a main box of the intelligent fire fighting device with movable partitions for tunnel based on BIM technology;
FIG. 4 is a schematic structural diagram of a reciprocating elevating mechanism in a mobile intelligent fire fighting device with partitioned zones for tunnel based on BIM technology;
fig. 5 is a schematic circuit diagram of a tunnel mobile partition intelligent fire fighting device based on the BIM technology according to the present invention.
In the figure: 1-ground rail, 2-main body box, 3-box door, 4-auxiliary box, 5-camera, 6-top plate, 7-screw, 8-PLC control system, 9-motor, 10-water inlet pipe, 11-guide hole, 12-reciprocating lifting mechanism, 13-T type mounting plate, 14-water delivery hose, 15-linkage rod, 16-guide rod, 17-first planetary gear, 18-main gear, 19-second planetary gear, 20-belt pulley, 21-transmission belt, 22-rotating shaft and 23-triangular fixing frame.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
A tunnel movable type partition intelligent fire fighting device based on BIM technology is disclosed, as shown in figure 1-4, comprising a ground rail 1 embedded in the earth surface of a tunnel and a top plate 6 fixed on the inner top surface of the tunnel, wherein the outer wall of the top of the ground rail 1 is slidably connected with a main body box 2, the outer walls of the two sides of the main body box 2 are respectively fixed with auxiliary boxes 4 through bolts, the outer wall of the back of one auxiliary box 4 is fixed with a PLC control system 8 through bolts, the outer wall of the front of the main body box 2 is fixed with a box door 3 through bolts, the outer wall of the front of the box door 3 is provided with a guide rail, the outer walls of the front of the top of the two auxiliary boxes 4 are fixed with cameras 5 through bolts, a reciprocating lifting mechanism 12 is arranged in the main body box 2, the outer wall of the reciprocating lifting mechanism 12 close to one side of the guide rail is provided with a T-shaped mounting, the outer wall of the bottom of the T-shaped mounting plate 13 is connected with a water delivery hose 14 through threads, the outer wall of the back of the main box 2 is fixed with a maintenance plate through a sealing strip, the outer wall of one side of the maintenance plate is fixed with a motor 9 through a support plate, the outer wall of one side of the maintenance plate is connected with a water inlet pipe 10 through threads, one end of the water delivery hose 14 is connected with the water inlet pipe 10, the inner wall of one side of the top plate 6 is fixed with a screw 7 through a bearing, one end of the screw 7 is connected with a driving mechanism, the top of the main box 2 is sleeved on the circumference of the screw 7 through a connecting block, the outer walls of the two sides of the main box 2 are provided with through holes, the opposite sides of the two auxiliary boxes; when the device is used, the screw rod 7 is driven to rotate by starting the driving mechanism, the main body box 2 slides on the ground rail 1 by the rotating screw rod 7, and in between, the reciprocating lifting mechanism 12 is driven to do high-low reciprocating motion by the starting motor 9, and water is injected into the water inlet pipe 10, so that the water enters the cavity of the T-shaped mounting plate 13 through the water delivery hose 14, a plurality of spray heads on one side of the water delivery hose extinguish fire in the tunnel, in the process, the main body box 2 can spray water for a long distance on two sides of the tunnel along the ground rail 1, the extinguishment of the fire in the tunnel is greatly promoted, the T-shaped mounting plate 13 reciprocates up and down in the guide rail, the fire fighting requirements of all high-degree fires in the tunnel are met, when the main body box 2 slides on the ground rail 1, the fire fighting conditions in the tunnel can be effectively shot and transmitted through the two cameras 5, the fire control system is beneficial to the fire fighters to observe and research the fire intensity in the tunnel, and improves the fire control efficiency of the fire fighters in the tunnel.
In order to enlarge the spray area of the spray head; as shown in fig. 3-4, the reciprocating lifting mechanism 12 includes two sets of planetary gear rotating assemblies, a linkage rod 15, two belt pulleys 20, a transmission belt 21 and two rotating shafts 22, the two rotating shafts 22 are respectively fixed on an inner wall of one side of the maintenance plate through bearings, the two belt pulleys 20 are respectively sleeved on outer circumferential walls of the two rotating shafts 22, the transmission belt 21 is sleeved on the circumferences of the two belt pulleys 20, each set of planetary gear rotating assemblies includes a guide rod 16, a first planetary gear 17, a main gear 18, a second planetary gear 19 and a triangular fixing frame 23, the main gear 18 is sleeved on one end of one of the rotating shafts 22, the first planetary gear 17 and the second planetary gear 19 are sequentially engaged on the circumferential teeth of the main gear 18 through the triangular fixing frame 23, the guide rod 16 is connected to a bottom end of the triangular fixing frame 23 through a rotating shaft, two ends of the linkage rod 15 are respectively connected to end portions of, the T-shaped mounting plate 13 is connected with one side of the linkage rod 15 through a bolt; when the tunnel fire fighting equipment works, one of the belt pulleys 20 is driven to rotate by one of the rotating shafts 22, the two main gears 18 are driven to simultaneously rotate in the same direction through the driving belt 21, the two groups of planetary gear rotating assemblies do circular motion at the moment, the linkage rod between the two guide rods 16 is driven to do vertical high-low motion, the T-shaped mounting plate 13 on one side of the T-shaped mounting plate is further effectively promoted to do reciprocating high-low motion, the spray heads on the T-shaped mounting plate 13 can spray water back and forth at high and low positions, the rapid solution of the fire fighting tense in the tunnel is further effectively promoted, the fire fighting safety in the tunnel is improved, the spatiality of the spray heads is also promoted at the same time, and.
The camera 5 is connected with an image analysis processing system through a signal line, the image analysis processing system is connected with the input end of the PLC control system 8 through the signal line, the PLC control system 8 is electrically connected with the BIM cooperative platform, the output end of the PLC control system 8 is connected with a water supply system through the signal line, and the motor 9 and the driving mechanism are connected with the output end of the PLC control system 8 through a wire; when the condition of a fire takes place in the tunnel, camera 5 can shoot the condition of a fire, the image information that the shooting reachs can convey to image analysis processing system through the signal line, carry out analysis and processing by it to the image that obtains, and pass through the signal line with condition of a fire information transmission to PLC control system 8, at this moment, BIM cooperation platform will predetermine good condition of a fire processing scheme and pass through signal line transmission to PLC control system 8, carry out analysis and processing by PLC control system 8 with the plan information, and through wire control motor 9, actuating mechanism and water supply system start work.
In the embodiment, when the device is used, the driving mechanism is started to drive the screw rods 7 to rotate, the rotating screw rods 7 enable the main body box 2 to slide on the ground rail 1, and between the main body box and the ground rail, the starting motor 9 drives one of the rotating shafts 22 to rotate, one of the rotating shafts 22 drives one of the belt pulleys 20 to rotate, the two main gears 18 are simultaneously driven to rotate in the same direction through the transmission belt 21, at the moment, the two groups of planetary gear rotating assemblies do circular motion and drive the linkage rod between the two guide rods 16 to do vertical high-low motion, so that the T-shaped mounting plate 13 on one side of the T-shaped mounting plate is effectively promoted to do reciprocating high-low motion, water is injected into the water inlet pipe 10, the water enters the cavity of the T-shaped mounting plate 13 through the water delivery hose 14, a plurality of spray heads on one side of the T-shaped mounting plate extinguish fire in the tunnel, and during the process, the main body box 2 can spray water on two sides of the, the extinguishment of the fire in the tunnel is greatly promoted, the T-shaped mounting plate 13 reciprocates up and down in the guide rail, the requirement of fire fighting of each high fire in the tunnel is met, when the main body box 2 slides on the ground rail 1, the condition of the fire in the tunnel can be effectively shot and transmitted through the two cameras 5, and the fire fighting personnel can observe and study the fire in the tunnel.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A tunnel movable type partition intelligent fire fighting device based on a BIM technology comprises a ground rail (1) embedded in the earth surface of a tunnel and a top plate (6) fixed on the inner top surface of the tunnel, and is characterized in that the outer wall of the top of the ground rail (1) is connected with a main box (2) in a sliding manner, the outer walls of the two sides of the main box (2) are respectively provided with an auxiliary box (4), the outer wall of the back of one auxiliary box (4) is provided with a PLC control system (8), the outer wall of the front of the main box (2) is provided with a box door (3), the outer wall of the front of the box door (3) is provided with a guide rail, the outer walls of the front of the tops of the two auxiliary boxes (4) are provided with cameras (5), a reciprocating lifting mechanism is arranged in the main box (2), the outer wall of one side, close to the guide rail, of the reciprocating lifting mechanism is provided with a T-shaped, and the outer wall of the bottom of the T-shaped mounting plate (13) is provided with a water delivery hose (14), the outer wall of the back face of the main box (2) is fixed with a maintenance plate through a sealing strip, the outer wall of one side of the maintenance plate is provided with a motor (9), the outer wall of one side of the maintenance plate is provided with a water inlet pipe (10), one end of the water delivery hose (14) is connected with the water inlet pipe (10), the inner wall of one side of the top plate (6) is provided with a screw rod (7), and the top of the main box (2) is sleeved on the circumference.
2. The BIM-based tunnel mobile type partitioned intelligent fire fighting device is characterized in that the reciprocating lifting mechanism (12) comprises two sets of planetary gear rotating assemblies, a linkage rod (15), two belt pulleys (20), a transmission belt (21) and two rotating shafts (22), and the two rotating shafts (22) are respectively fixed on one side inner wall of the maintenance plate through bearings.
3. The intelligent fire fighting device according to claim 2, wherein the two belt pulleys (20) are respectively sleeved on the outer peripheral walls of the two rotating shafts (22), and the transmission belt (21) is sleeved on the peripheries of the two belt pulleys (20).
4. The BIM-based intelligent fire fighting device for tunnel moving type subarea, according to claim 2, wherein each set of planetary gear rotating components comprises a guide rod (16), a first planetary gear (17), a main gear (18), a second planetary gear (19) and a triangle fixing frame (23), and the main gear (18) is sleeved on one end of one of the rotating shafts (22).
5. The BIM-technology-based tunnel mobile type partitioned intelligent fire fighting device according to claim 4, wherein the first planetary gear (17) and the second planetary gear (19) are sequentially engaged with the circumferential teeth of the main gear (18) through a triangular fixing frame (23), and the guide rod (16) is connected to the bottom end of the triangular fixing frame (23) through a rotating shaft.
6. The BIM-technology-based tunnel mobile type partitioned intelligent fire fighting device is characterized in that two ends of the linkage rod (15) are respectively connected with the end parts of the two guide rods (16) through rotating shafts, and the T-shaped mounting plate (13) is connected with one side of the linkage rod (15) through bolts.
7. The BIM-based tunnel mobile type partitioned intelligent fire fighting device according to claim 4, wherein the main body box (2) is provided with through holes on the outer walls of both sides thereof, and the two auxiliary boxes (4) are provided with communication holes on the opposite sides thereof, and the diameter of the communication holes is the same as that of the through holes.
8. The intelligent fire fighting device according to claim 1, wherein the camera (5) is connected to an image analysis and processing system through a signal line, the image analysis and processing system is connected to an input end of a PLC control system (8) through a signal line, and the PLC control system (8) is electrically connected to a BIM coordination platform.
9. The BIM-based tunnel mobile type partitioned intelligent fire fighting device is characterized in that the output end of the PLC control system (8) is connected with a water supply system through a signal line, and the motor (9) and the driving mechanism are connected with the output end of the PLC control system (8) through a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011078342.7A CN112211665A (en) | 2020-10-10 | 2020-10-10 | Portable subregion wisdom fire control unit in tunnel based on BIM technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011078342.7A CN112211665A (en) | 2020-10-10 | 2020-10-10 | Portable subregion wisdom fire control unit in tunnel based on BIM technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112211665A true CN112211665A (en) | 2021-01-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011078342.7A Withdrawn CN112211665A (en) | 2020-10-10 | 2020-10-10 | Portable subregion wisdom fire control unit in tunnel based on BIM technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN112211665A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087013A (en) * | 2021-11-18 | 2022-02-25 | 甘肃新网通科技信息有限公司 | Intelligent fire protection device for tunnel |
| CN115655623A (en) * | 2022-12-22 | 2023-01-31 | 成都理工大学 | Tunnel structure damage process shooting device in vibration table test and using method thereof |
-
2020
- 2020-10-10 CN CN202011078342.7A patent/CN112211665A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087013A (en) * | 2021-11-18 | 2022-02-25 | 甘肃新网通科技信息有限公司 | Intelligent fire protection device for tunnel |
| CN115655623A (en) * | 2022-12-22 | 2023-01-31 | 成都理工大学 | Tunnel structure damage process shooting device in vibration table test and using method thereof |
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Application publication date: 20210112 |