CN215025597U - Utility tunnel risk analysis early warning system based on thing networking - Google Patents
Utility tunnel risk analysis early warning system based on thing networking Download PDFInfo
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- CN215025597U CN215025597U CN202121091380.6U CN202121091380U CN215025597U CN 215025597 U CN215025597 U CN 215025597U CN 202121091380 U CN202121091380 U CN 202121091380U CN 215025597 U CN215025597 U CN 215025597U
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Abstract
The utility model discloses an underground pipe gallery risk analysis early warning system based on thing networking belongs to analysis early warning system technical field, an underground pipe gallery risk analysis early warning system based on thing networking, including the piping lane body, cable hold, rainwater cabin and gas cabin have been seted up on the piping lane body respectively, the inner wall fixedly connected with detection device in cable hold, detection device's output shaft signal is connected with the controller, the inner wall in cable hold is provided with the powder spray device. The utility model discloses a, powder spray device can spray to the region that appears the naked light, and then reaches the purpose to the fire behavior preliminary treatment, goes into the scene and extinguishes the fire condition until the fire fighter, and the speed that the in-process slows down the fire behavior and spreads reduces economic loss to can spray the part of taking place the fire condition through powder spray device, can not influence whole utility tunnel, and then reduce the loss, avoid dwindling and spray the region, conveniently carry out disaster post-treatment work to utility tunnel.
Description
Technical Field
The utility model relates to an analysis early warning system technical field, more specifically say, relate to an underground utility tunnel risk analysis early warning system based on thing networking.
Background
The utility model relates to a comprehensive pipe gallery (Japan called 'common ditch', Taiwan called 'common pipeline'), namely an underground city pipeline comprehensive corridor, namely, a tunnel space is built underground, various engineering pipelines such as electric power, communication, gas, heat supply, water supply and drainage and the like are integrated, a special overhaul port, a lifting port and a monitoring system are arranged, unified planning, unified design, unified construction and management are implemented, and the utility model is an important infrastructure and a 'lifeline' for guaranteeing city operation.
At present, underground utility tunnel takes place after the fire disaster, the workman reports to the police through the supervisory equipment discovery usually, receive alert the in-process that gets into the scene at the fireman, do not possess the device to the condition of a fire preliminary treatment, the conflagration can take place to stretch, aggravate economic loss, and underground utility tunnel can use to spray the processing of putting out a fire some, can spray whole underground utility tunnel after spraying the water spray, water can lead to the inside electrical damage of whole underground utility tunnel, increase economic loss, and it is very inconvenient that the later stage is cleared up, so need an underground utility tunnel risk analysis early warning system based on the thing networking.
SUMMERY OF THE UTILITY MODEL
Problem to exist among the prior art, the utility model aims to provide an underground utility tunnel risk analysis early warning system based on thing networking to solve current underground utility tunnel and do not possess the device to the condition of a fire preliminary treatment when the conflagration breaing out, the conflagration can take place to stretch, aggravate economic loss, and some underground utility tunnels can use to spray and put out a fire the processing, can spray to whole underground utility tunnel after spraying water, water can lead to the inside electric damage of whole underground utility tunnel, economic loss is increased, and the very inconvenient problem of later stage clearance gets up.
In order to solve the above problems, the utility model adopts the following technical proposal.
The utility model provides an underground utility tunnel risk analysis early warning system based on thing networking, includes the piping lane body, cable compartment, rainwater cabin and gas cabin have been seted up on the piping lane body respectively, the inner wall fixedly connected with detection device in cable compartment, detection device's output shaft signal connection has the controller, the inner wall in cable compartment is provided with the powder spray device, the output shaft and the powder spray device signal connection of controller, the right-hand member of powder spray device runs through the piping lane body and extends to the inside in rainwater cabin, the right-hand member and the rainwater cabin inner wall fixed connection of powder spray device, the inner wall in cable cabin is provided with monitored control system.
As a further description of the above technical solution:
the detection device comprises a plurality of smoke sensors, the tops of the smoke sensors are arranged on the inner top wall of the cable compartment at equal intervals, open fire sensors arranged at equal intervals are fixedly arranged on the inner top wall of the cable compartment, and output shafts of the smoke sensors and the open fire sensors are in signal connection with the controller.
As a further description of the above technical solution:
the powder spraying device comprises a main pipe, the top of the main pipe is fixedly connected with the inner wall of a cable cabin, the bottom of the main pipe is communicated with a powder inlet pipe, the right end of the powder inlet pipe penetrates through a pipe gallery body and extends to the interior of the rainwater cabin, the right end of the powder inlet pipe is communicated with a powder storage box, the top of the powder storage box is fixedly connected with the inner wall of the rainwater cabin, a powder suction pump is fixedly mounted on the powder inlet pipe, the left side of the main pipe is communicated with powder outlet pipes which are arranged equidistantly, the top of each powder outlet pipe is fixedly connected with the inner wall of the cable cabin, the bottom of each powder outlet pipe is communicated with a three sprayer, a solenoid valve is fixedly mounted on each powder outlet pipe, the output end of the controller is in signal connection with the solenoid valve, a booster pump is fixedly mounted on each powder inlet pipe, and the output end of the booster pump is in signal connection with the controller.
As a further description of the above technical solution:
the inner wall fixedly connected with electric capacity charge level indicator of storing up the powder case, the right side intercommunication of storing up the powder case has the powder pipe that adds, the top threaded connection who adds the powder pipe has sealed lid, electric capacity charge level indicator's output and controller signal connection.
As a further description of the above technical solution:
the front surface of the powder storage box is communicated with a vent pipe, and the inner wall of the vent pipe is fixedly connected with a water absorption sponge.
As a further description of the above technical solution:
the monitoring system comprises a plurality of cameras, the left sides of the cameras are arranged on the inner wall of the cable compartment at equal intervals, and the input ends of the cameras are connected with the controller through signals.
Compared with the prior art, the utility model has the advantages of:
(1) the scheme can monitor whether open fire and smoke occur in the pipe gallery body in real time through the detection device, if the smoke is detected, the detection device can send a signal to the controller, the controller can send the position with the smoke to the crew terminal equipment and send an alarm signal, the crew can observe the condition of the corresponding position through the monitoring system and further judge whether the powder spraying device needs to be started for processing, if the dangerous case is not large, the crew is sent to a designated area for maintenance, further, the expansion of the dangerous case is avoided, unnecessary loss is avoided, if the crew judges that the large dangerous case can occur, the crew can start the powder spraying device of the corresponding position through the controller, further, the dangerous case is controlled, the loss is reduced, then if the open fire occurs, the controller receives the signal of the open fire, and the controller can send an alarm to the crew equipment, the controller can skip crew's authorization, the direct start powder spray device, the powder spray device can spray to the region that appears the naked light, and then reach the purpose to the fire behavior preliminary treatment, go into the scene and extinguish the condition of a fire until the fire fighter, the speed that the in-process slowed down the condition of a fire and spread, reduce economic loss, and can spray the part of taking place the condition of a fire through the powder spray device, can not influence whole utility tunnel, and then reduce the loss, avoid dwindling and spray the region, conveniently carry out disaster post-treatment work to the utility tunnel.
(2) According to the scheme, the cable cabin can be divided into a plurality of areas at equal intervals through the arrangement of the smoke sensors and the open fire sensors, if smoke is detected, the smoke sensors can send signals to the controller, the controller can send the positions with the smoke to the crew terminal equipment and send alarm signals, the crew can observe the conditions of the corresponding positions through the monitoring system and further judge whether the powder spraying device needs to be started for processing, if the dangerous case is not large, the crew is sent to the appointed area for maintenance, further, the expansion of the dangerous case is avoided, unnecessary loss is avoided, if the crew judges that the dangerous case can occur, the crew can start the powder spraying device of the corresponding position through the controller, further, the dangerous case is controlled, the loss is reduced, the open fire sensors detect the open fire, and the controller receives the signals of the open fire, the controller can be when sending the warning to crew member equipment, and crew member's mandate can be skipped to the controller, directly starts the powder spray device, and the powder spray device can spray to the region that appears the naked light, and then reaches the purpose to fire behavior preliminary treatment, goes out the condition of a fire until the fire fighter gets into the scene, slows down the speed that the condition of a fire stretchs at the in-process, reduces economic loss.
(3) This scheme is when the conflagration breaing out, the naked light sensor detects the naked light and to controller signals, the controller can start the powder suction pump after that, the booster pump with detect the solenoid valve of naked light one side, and send alarm signal to the crew member, the powder suction pump starts the back, can be with storing up the inside dry powder suction of powder incasement portion to advancing the powder pipe, the dry powder can enter into the trunk line after that, the dry powder can flow into the play powder intraductal that the solenoid valve was opened after entering into the trunk line inside, after that from the shower nozzle blowout to detecting the regional processing of putting out a fire of naked light, and then realize the regional purpose of putting out a fire of control, and the booster pump can pressurize to advancing powder intraduct, and then improve the smooth degree that the dry powder flows, improve and spray the effect, the in-process can realize regional putting out a fire, reduce the scope that the dry powder sprayed, reduce the damage to electric, make things convenient for the later stage to clear up, improve the practicality of device.
(4) This scheme can be in real time how much detect storing up the dry powder of powder incasement portion through storing up powder incasement wall fixed connection's electric capacity charge level indicator, and after the dry powder reached the alert value, electric capacity charge level indicator can send a signal to the controller, and the controller can send the warning to crew member's terminal, and then reminds crew member to supply the dry powder, during the replenishment, only need to seal the lid to twist out, to the powder feeding intraduct pour into the dry powder can.
(5) The breather pipe that this scheme stored up the positive intercommunication of powder case can be to storing up the inside supplementary air of powder incasement, and then improves the speed that the powder pump was inhaled to the suction, improves the fire extinguishing effect, and the sponge that absorbs water of breather pipe inner wall fixed connection can dehumidify the air that enters into to store up the powder incasement portion, and then avoids the moisture to cause the influence to the dry powder, improves the practicality of device.
(6) This scheme can monitor the area that smoke transducer and naked light sensor divided through a plurality of cameras, and then makes things convenient for crew's observation, improves the practicality of device.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a subjective view of the present invention;
FIG. 3 is a cross-sectional view of the powder storage box of the present invention;
fig. 4 is a schematic diagram of the present invention.
The reference numbers in the figures illustrate:
1. a pipe gallery body; 2. a cable compartment; 3. a rain chamber; 4. a gas cabin; 5. a detection device; 501. a smoke sensor; 502. an open flame sensor; 6. a controller; 7. a powder spraying device; 701. a main pipeline; 702. a powder inlet pipe; 703. a powder storage box; 704. a powder suction pump; 705. a powder outlet pipe; 706. a spray head; 707. an electromagnetic valve; 708. a booster pump; 8. a monitoring system; 801. a camera; 9. a capacitance level gauge; 10. a powder adding pipe; 11. a sealing cover; 12. a breather pipe; 13. a water-absorbing sponge.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention;
please refer to fig. 1-4, in the present invention: the utility model provides an underground utility tunnel risk analysis early warning system based on thing networking, including piping lane body 1, cable chamber 2 has been seted up on the piping lane body 1 respectively, rainwater cabin 3 and gas cabin 4, the inner wall fixedly connected with detection device 5 of cable chamber 2, detection device 5's output shaft signal is connected with controller 6, the inner wall of cable chamber 2 is provided with dusting device 7, the output shaft and the 7 signal connection of dusting device of controller 6, dusting device 7's right-hand member runs through piping lane body 1 and extends to the inside of rainwater cabin 3, dusting device 7's right-hand member and 3 inner wall fixed connection of rainwater cabin, the inner wall of cable chamber 2 is provided with monitored control system 8.
In the utility model, whether naked light and smog appear in the pipe gallery body 1 can be monitored in real time through the detection device 5, if the existence of smog is detected, the detection device 5 can send a signal to the controller 6, the controller 6 can send the position with smog to the crew terminal equipment and send an alarm signal, the crew can observe the condition of the corresponding position through the monitoring system 8, and then judge whether the powder spraying device 7 needs to be started for processing, if the dangerous case is not big, the crew is sent to the appointed area for maintenance, thereby avoiding the expansion of the dangerous case, avoiding unnecessary loss, if the crew judges that the dangerous case can happen, the crew can start the powder spraying device 7 of the corresponding position through the controller 6, thereby controlling the dangerous case, reducing the loss, then if the existence of naked light is detected, the controller 6 receives the signal of the occurrence of naked light, controller 6 can be when sending the warning to crew member equipment, crew member's authorization can be skipped to controller 6, direct start powder sprayer 7, powder sprayer 7 can spray to the region that appears the naked light, and then reach the purpose to fire behavior preliminary treatment, go into the scene and extinguish the condition of a fire until the fire fighter, the speed that the in-process slowed down the condition of a fire and spread, reduce economic loss, and can spray the part of taking place the condition of a fire through powder sprayer 7, can not influence whole utility tunnel, and then reduce the loss, avoid reducing and spray the region, conveniently carry out disaster post-treatment work to the utility tunnel.
Please refer to fig. 1 and fig. 2, wherein: the detection device 5 comprises a plurality of smoke sensors 501, the tops of the smoke sensors 501 are arranged on the inner top wall of the cable compartment 2 at equal intervals, open fire sensors 502 arranged at equal intervals are fixedly arranged on the inner top wall of the cable compartment 2, and the output shafts of the smoke sensors 501 and the open fire sensors 502 are in signal connection with the controller 6.
In the utility model, the cable chamber 2 can be divided into a plurality of areas with equal distance through the arrangement of a plurality of smoke sensors 501 and a plurality of open fire sensors 502, if the smoke is detected, the smoke sensors 501 can send out signals to the controller 6, the controller 6 can send the part with the smoke to the terminal equipment of the crew member and send out alarm signals, the crew member can observe the condition of the corresponding part through the monitoring system 8, and then judge whether the powder spraying device 7 needs to be started for processing, if the dangerous case is not big, the crew member is sent to the appointed area for maintenance, thereby avoiding the expansion of the dangerous case, avoiding unnecessary loss, if the crew member judges that the dangerous case can happen, the crew member can start the powder spraying device 7 of the corresponding part through the controller 6, thereby controlling the dangerous case, reducing loss, and the open fire sensors 502 detect that the open fire appears, controller 6 receives the signal that appears the naked light, and when controller 6 can send the warning to crewmember equipment, crewmember's mandate can be skipped to controller 6, directly starts dusting device 7, and dusting device 7 can spray to the region that appears the naked light, and then reaches the purpose to the intensity of a fire preliminary treatment, goes out the condition of a fire until the fire fighter gets into the scene, and the speed that the in-process slowed down the condition of a fire and spread reduces economic loss.
Please refer to fig. 1 and fig. 2, wherein: the powder spraying device 7 comprises a main pipe 701, the top of the main pipe 701 is fixedly connected with the inner wall of the cable cabin 2, the bottom of the main pipe 701 is communicated with a powder inlet pipe 702, the right end of the powder inlet pipe 702 penetrates through the pipe gallery body 1 and extends to the interior of the rainwater cabin 3, the right end of the powder inlet pipe 702 is communicated with a powder storage box 703, the top of the powder storage box 703 is fixedly connected with the inner wall of the rainwater cabin 3, a powder suction pump 704 is fixedly installed on the powder inlet pipe 702, the left side of the main pipe 701 is communicated with powder outlet pipes 705 which are arranged equidistantly, the top of the powder outlet pipes 705 is fixedly connected with the inner wall of the cable cabin 2, the bottom of the powder outlet pipes 705 is communicated with three spray heads 706, an electromagnetic valve 707 is fixedly installed on the powder outlet pipes 705, the output end of the controller 6 is in signal connection with the electromagnetic valve 707, a booster pump is fixedly installed on the powder inlet pipe 702, and the output end 708 of the booster pump is in signal connection with the controller 6.
In the utility model, when a fire occurs, the open fire sensor 502 detects the open fire and sends a signal to the controller 6, the controller 6 can then start the powder suction pump 704, the booster pump 708 and the electromagnetic valve 707 detecting one side of the open fire, and send an alarm signal to the crew, after the powder suction pump 704 is started, the dry powder in the powder storage tank 703 can be pumped into the powder inlet pipe 702, then the dry powder can enter the main pipe 701, the dry powder can flow into the powder outlet pipe 705 opened by the electromagnetic valve 707 after entering the main pipe 701, then the fire extinguishing treatment is carried out on the area detecting the open fire by spraying from the nozzle 706, thereby realizing the purpose of controlling the fire extinguishing area, the booster pump 708 can pressurize the inside of the powder inlet pipe 702, further improving the fluidity of flowing, improving the spraying effect, the area fire extinguishing can be realized in the process, the range of spraying the dry powder is reduced, the damage to the electricity is reduced, and the cleaning in the later period is convenient, the practicability of the device is improved.
Please refer to fig. 3, in which: the inner wall of the powder storage box 703 is fixedly connected with a capacitance material level meter 9, the right side of the powder storage box 703 is communicated with a powder adding pipe 10, and the top end of the powder adding pipe 10 is in threaded connection with a sealing cover 11.
The utility model discloses in, can detect what the inside dry powder of powder storage box 703 in real time through powder storage box 703 inner wall fixed connection's electric capacity charge level indicator 9, after the dry powder reaches the alert value, electric capacity charge level indicator 9 can be to controller 6 signals, and controller 6 can send the warning to crew member's terminal, and then reminds crew member to supply the dry powder, during the replenishment, only need to twist out sealed lid 11, to adding powder pipe 10 inside pour into the dry powder can.
Please refer to fig. 2, in which: the front of the powder storage box 703 is communicated with a vent pipe 12, and the inner wall of the vent pipe 12 is fixedly connected with a water absorption sponge 13.
The utility model discloses in, store up the breather pipe 12 of the positive intercommunication of powder case 703 can be to storing up the inside supplementary air of powder case 703, and then improve the speed that powder pump 704 inhaled the powder, improve the fire extinguishing effect, and breather pipe 12 inner wall fixed connection's sponge 13 that absorbs water can dehumidify the air that enters into the inside of powder case 703, and then avoids the moisture to cause the influence to the dry powder, improve the practicality of device.
Please refer to fig. 1 and fig. 2, wherein: the monitoring system 8 comprises a plurality of cameras 801, the left sides of the cameras 801 are arranged at equal intervals and are installed on the inner wall of the cable compartment 2, and the input ends of the cameras 801 are all in signal connection with the controller 6.
The utility model discloses in, can monitor the area that smoke transducer 501 and naked light sensor 502 divided through a plurality of cameras 801, and then make things convenient for crew member's observation, improve the practicality of device.
The working principle is as follows: the cable compartment 2 can be divided into a plurality of areas at equal intervals through the arrangement of the smoke sensors 501 and the open fire sensors 502, if smoke is detected, the smoke sensors 501 send signals to the controller 6, the controller 6 sends the positions with the smoke to terminal equipment of a crew member and sends out alarm signals, the crew member can observe the conditions of the corresponding positions through the monitoring system 8 and further judge whether the powder spraying device 7 needs to be started for processing, if the dangerous case is not large, the crew member is sent to a designated area for maintenance, further, the expansion of the dangerous case is avoided, unnecessary loss is avoided, if the crew member judges that the dangerous case can occur, the crew member can start the powder spraying device 7 of the corresponding position through the controller 6 and further control the dangerous case and reduce the loss, and if the open fire sensors 502 detect that the open fire occurs, the open fire sensors 502 detect the open fire and send out signals to the controller 6, the controller 6 will start the powder suction pump 704, the booster pump 708 and the electromagnetic valve 707 on the side of the detected open fire, and send out alarm signals to the crew, after the powder suction pump 704 is started, the dry powder in the powder storage tank 703 will be pumped into the powder inlet pipe 702, then the dry powder will enter the main pipe 701, the dry powder will flow into the powder outlet pipe 705 opened by the electromagnetic valve 707 after entering the main pipe 701, then the dry powder will be sprayed out from the nozzle 706 to extinguish the detected open fire area, thereby achieving the purpose of controlling the fire extinguishing area, and the booster pump 708 will pressurize the powder inlet pipe 702, so as to improve the smooth degree of the dry powder flow, improve the spraying effect, in the process, realize area fire extinguishing, reduce the spraying range of the dry powder, reduce the electrical damage, facilitate the later cleaning, improve the practicability of the device, further achieve the purpose of fire pretreatment, until the fire fighter enters the scene to extinguish the fire, the speed that the in-process slows down the intensity of a fire and spreads reduces economic loss to can spray the part of taking place the condition of a fire through powder spraying device 7, can not influence whole utility tunnel, and then reduce the loss, conveniently carry out calamity aftertreatment work to utility tunnel.
The above is only a preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (6)
1. The utility model provides an underground utility tunnel risk analysis early warning system based on thing networking, includes piping lane body (1), its characterized in that: cable hold (2), rainwater cabin (3) and gas cabin (4) have been seted up on piping lane body (1) respectively, the inner wall fixedly connected with detection device (5) of cable hold (2), the output shaft signal connection of detection device (5) has controller (6), the inner wall of cable hold (2) is provided with dusting device (7), the output shaft and dusting device (7) signal connection of controller (6), the right-hand member of dusting device (7) runs through inside of piping lane body (1) and extension to rainwater cabin (3), the right-hand member and rainwater cabin (3) inner wall fixed connection of dusting device (7), the inner wall of cable hold (2) is provided with monitored control system (8).
2. The underground utility tunnel risk analysis early warning system based on the internet of things according to claim 1, characterized in that: detection device (5) include a plurality of smoke transducer (501), and is a plurality of smoke transducer (501) top is equidistance arranged install on the interior roof of cable chamber (2), the interior top fixed mounting of cable chamber (2) has open fire sensor (502) that the equidistance was arranged, smoke transducer (501) and open fire sensor (502)'s output shaft all with controller (6) signal connection.
3. The underground utility tunnel risk analysis early warning system based on the internet of things according to claim 1, characterized in that: the powder spraying device (7) comprises a main pipeline (701), the top of the main pipeline (701) is fixedly connected with the inner wall of a cable cabin (2), the bottom of the main pipeline (701) is communicated with a powder inlet pipe (702), the right end of the powder inlet pipe (702) penetrates through a pipe gallery body (1) and extends to the interior of a rainwater cabin (3), the right end of the powder inlet pipe (702) is communicated with a powder storage tank (703), the top of the powder storage tank (703) is fixedly connected with the inner wall of the rainwater cabin (3), a powder suction pump (704) is fixedly installed on the powder inlet pipe (702), the left side of the main pipeline (701) is communicated with powder outlet pipes (705) which are arranged at equal intervals, the top of the powder outlet pipes (705) is fixedly connected with the inner wall of the cable cabin (2), the bottom of the powder outlet pipes (705) is communicated with three spray nozzles (706), and an electromagnetic valve (707) is fixedly installed on the powder outlet pipes (705), the output end of the controller (6) is in signal connection with the electromagnetic valve (707), the powder inlet pipe (702) is fixedly provided with a booster pump (708), and the output end of the booster pump (708) is in signal connection with the controller (6).
4. The underground utility tunnel risk analysis early warning system based on the internet of things according to claim 3, characterized in that: the inner wall fixedly connected with electric capacity charge level indicator (9) of storing up powder case (703), the right side intercommunication of storing up powder case (703) has with powder pipe (10), the top threaded connection who adds powder pipe (10) has sealed lid (11), the output and controller (6) signal connection of electric capacity charge level indicator (9).
5. The underground utility tunnel risk analysis early warning system based on the internet of things according to claim 3, characterized in that: the front surface of the powder storage box (703) is communicated with a vent pipe (12), and the inner wall of the vent pipe (12) is fixedly connected with a water absorption sponge (13).
6. The underground utility tunnel risk analysis early warning system based on the internet of things according to claim 1, characterized in that: the monitoring system (8) comprises a plurality of cameras (801), the left sides of the cameras (801) are arranged on the inner wall of the cable compartment (2) at equal intervals, and the input ends of the cameras (801) are connected with the controller (6) in a signal mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121091380.6U CN215025597U (en) | 2021-05-20 | 2021-05-20 | Utility tunnel risk analysis early warning system based on thing networking |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121091380.6U CN215025597U (en) | 2021-05-20 | 2021-05-20 | Utility tunnel risk analysis early warning system based on thing networking |
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| CN215025597U true CN215025597U (en) | 2021-12-07 |
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| CN202121091380.6U Expired - Fee Related CN215025597U (en) | 2021-05-20 | 2021-05-20 | Utility tunnel risk analysis early warning system based on thing networking |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200881A (en) * | 2021-12-13 | 2022-03-18 | 常州大学 | Tunnel environment construction monitoring system |
-
2021
- 2021-05-20 CN CN202121091380.6U patent/CN215025597U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200881A (en) * | 2021-12-13 | 2022-03-18 | 常州大学 | Tunnel environment construction monitoring system |
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