LU502012B1 - A Mine Safety Monitoring and Early Warning System Based On Mixed Driving of Data and Model - Google Patents

A Mine Safety Monitoring and Early Warning System Based On Mixed Driving of Data and Model Download PDF

Info

Publication number
LU502012B1
LU502012B1 LU502012A LU502012A LU502012B1 LU 502012 B1 LU502012 B1 LU 502012B1 LU 502012 A LU502012 A LU 502012A LU 502012 A LU502012 A LU 502012A LU 502012 B1 LU502012 B1 LU 502012B1
Authority
LU
Luxembourg
Prior art keywords
fixedly connected
main box
early warning
box body
data
Prior art date
Application number
LU502012A
Other languages
French (fr)
Inventor
Hongsheng Liu
Meng Li
Qinghua Gu
Minjie Lian
Xuexian Li
Zhidong Feng
Xingxin Nie
Sai Zhang
Song Jiang
Jinyuan Li
Caiwu Lu
Shunling Ruan
Original Assignee
Univ Xian Architectur & Tech
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Xian Architectur & Tech filed Critical Univ Xian Architectur & Tech
Priority to LU502012A priority Critical patent/LU502012B1/en
Application granted granted Critical
Publication of LU502012B1 publication Critical patent/LU502012B1/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Human Resources & Organizations (AREA)
  • Strategic Management (AREA)
  • Economics (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Educational Administration (AREA)
  • Game Theory and Decision Science (AREA)
  • Development Economics (AREA)
  • Marketing (AREA)
  • Operations Research (AREA)
  • Quality & Reliability (AREA)
  • Tourism & Hospitality (AREA)
  • Physics & Mathematics (AREA)
  • General Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

The invention discloses a mine safety monitoring and early warning system based on mixed driving of data and models, which comprises a main box body and an installation plate, wherein a touch screen is fixedly embedded at one side of the main box body, a power supply, a memory, a processor, a positioning module, a communication module and a vibration sensor are arranged in the main box body, an installation opening is arranged at the top of the main box body, a cover plate is rotatably connected in the installation opening through a rotating shaft, and a locking mechanism corresponding to the cover plate is fixedly connected at the top of the main box body; A telescopic cylinder is fixedly connected to the bottom of one end of the main box away from the touch screen. Through the arrangement of the signal monitoring module and the signal processing module, the system can timely and effectively monitor the mine safety and collect data, reveal the disaster-causing mechanism synchronously with the on-site rock mass response prediction, improve the accuracy of prediction and early warning, recognize the causes of disasters, and provide technical support for targeted disaster prevention measures.

Description

DESCRIPTION LU502012 A Mine Safety Monitoring and Early Warning System Based On Mixed Driving of Data and Model
TECHNICAL FIELD The invention relates to the technical field of geological disaster early warning, in particular to a mine safety monitoring and early warning system driven by data and models.
BACKGROUND OF THE RELATED ART With the rapid development of China's economy, the demand for mineral resources is increasing day by day, and the scale of mining development is gradually expanding. As a result, the safety problems of mine production have become increasingly prominent, and disasters such as rockburst, water seepage, roof fall and collapse have become increasingly prominent, resulting in frequent mine accidents. At present, there is still a lack of effective, stable and reliable mine disaster prediction and early warning methods at home and abroad.
On-site monitoring has always been one of the traditional methods to manage mine production and prevent mine disasters. This method has that advantage that: The sensor can know the real state of the mine in real time, continuously monitor and deal with abnormal phenomena in time and effectively. Moreover, with the continuous development of science and technology, more and more monitoring sensors emerge as the times require, and all aspects meet the needs of mine site monitoring. Among them, the existing patent "CN201810223969.3" puts forward a method of mine disaster prediction and early warning that combines site monitoring with numerical simulation, by combining the numerical simulation method with the on-site monitoring method, it can not only reflect the on-site situation in real time, but also know the disaster occurrence process from the mechanism, it can not only realize the advance prediction in time, but also achieve the overall grasp in space. Improve the time and space accuracy of early warning and prediction, realize the real-time and advance of early warning, and achieve the universality of early warning methods.
However, the mine safety monitoring and early warning system in the prior art is relatively simple, and the mine safety monitoring and early warning system cannot timely and 1
DESCRIPTION effectively monitor mine safety and collect data, thus affecting the accuracy of mine safety 0502012 monitoring and early warning.
SUMMARY
1. Technical problems to be solved The invention aims to solve the problems that the mine safety monitoring and early warning system in the prior art is relatively simple, and the mine safety monitoring and early warning system cannot monitor and collect data in time and effectively, and proposes a mine safety monitoring and early warning system based on data and model mixed driving.
2. Technical scheme In order to achieve the above purpose, the invention adopts the following technical scheme: The mine safety monitoring and early warning system based on mixed driving of data and model comprises a main box body and an installation plate, wherein one side of the main box body is fixedly embedded with a touch screen, a power supply, a memory, a processor, a positioning module, a communication module and a vibration sensor are arranged in the main box body, the top of the main box body is provided with an installation opening, a cover plate is rotatably connected in the installation opening through a rotating shaft, and the top of the main box body is fixedly connected with a locking mechanism corresponding to the cover plate; The bottom of one end of the main box away from the touch screen is fixedly connected with a telescopic cylinder, the output end of the telescopic cylinder is fixedly connected with the bottom of the mounting plate, and the bottom of the mounting plate is fixedly connected with a supporting mechanism; One end of the mounting plate is fixedly connected with a first motor, the top of the mounting plate is provided with a mounting groove, the output end of the first motor is fixedly connected with a screw, one end of the screw in the mounting groove is sleeved with a slide block in a threaded way, the top of the mounting plate is rotatably connected with a support plate through a rotating rod, the support plate and the slide block are connected through a connecting plate, and both ends of the connecting plate are rotatably connected 2
DESCRIPTION with the slide block and the support plate respectively; 7502012 The top of the support plate is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a fixed plate, and one side of the fixed plate is fixedly connected with a camera and a laser sensor, the output ends of the camera, the power supply, the laser sensor, the positioning module and the vibration sensor are all connected with the input ends of the processor, the output ends of the processor are respectively connected with the input ends of the memory, the first motor, the second motor and the telescopic cylinder, and the output ends of the communication module and the touch screen are bidirectionally connected with the input ends of the processor.
Preferably, the bottom of the main box body is rotatably connected with a plurality of universal self-locking wheels.
Preferably, the bottom of the main box body is fixedly inserted with a power connector, and the output end of the power connector is connected with the input end of the power supply.
Preferably, the locking mechanism comprises a clamping block and a clamping rod, the clamping rod is slidably inserted on the clamping block, the top of the cover plate is fixedly connected with a fixed block, and a clamping groove corresponding to the clamping rod is formed on the fixed block.
Preferably, one end of the clamping rod close to the fixing block is fixedly sleeved with a clamping sleeve, the other end of the clamping rod far from the clamping sleeve is fixedly connected with a pull rod, a spring is sleeved on the clamping rod, and two ends of the spring are fixedly connected with the clamping sleeve and the clamping block respectively.
Preferably, the supporting mechanism comprises a supporting rod, the top of the main box body is provided with a sliding cavity corresponding to the supporting rod, and the bottom of the supporting rod is fixedly connected with a limiting block.
Preferably, a slide bar is fixedly connected in the installation groove, and a through hole corresponding to the slide bar is formed on the slide bar.
Preferably, the bottom of the fixing plate is fixedly connected with a guide rod, the bottom of the guide rod is fixedly connected with a guide block, and the top of the supporting plate is provided with an annular slide rail corresponding to the guide block.
3
DESCRIPTION Preferably, the top of the fixed plate is fixedly connected with a protective plate 7502012 corresponding to the camera.
Preferably, the positioning module is a Beidou positioning module or a GPS positioning module.
3. Beneficial effects Compared with the prior art, the invention has the advantages that: (1) According to the invention, through the arrangement of the signal monitoring module and the signal processing module, the system can timely and effectively monitor the safety of the mine and collect data, reveal the disaster-causing mechanism synchronously with the on-site rock mass response prediction, improve the accuracy of prediction and early warning, recognize the cause of the disaster, and provide technical support for targeted disaster prevention measures.
(2) In the invention, the positioning module can conveniently position the position of equipment, and the communication module can receive and send remote control signals, at the same time, the vibration sensor can collect the vibration signals near the equipment, and the camera and laser sensor can monitor the outside of the mine.
(3) According to the invention, the height of the support plate can be conveniently adjusted by the telescopic cylinder, the first motor can drive the screw to rotate, so that the angle of the support plate can be adjusted by the slider; and meanwhile, the second motor can drive the support plate to rotate and adjust the direction of the monitoring module.
(4)According to the invention, the universal self-locking wheel is arranged, so that equipment can be conveniently moved; meanwhile, the installation opening is arranged, so that the control element can be conveniently maintained; the cover plate can protect the control element, and the locking mechanism is arranged, so that the cover plate can be conveniently fixed.
BRIEF DESCRIPTION OF THE FIGURES Figure 1 is a structural schematic diagram of a mine safety monitoring and early warning system based on mixed driving of data and models.
Figure 2 is a schematic plan view of the supporting plate of the mine safety monitoring 4
DESCRIPTION and early warning system based on mixed driving of data and model. 7502012 Figure 3 is a schematic diagram of the structure at A in Figure 1; Figure 4 is a schematic diagram of the control system of the mine safety monitoring and early warning system based on the hybrid drive of data and model.
In the picture: 1 main box, 2 mounting plates, 3 touch screens, 4 power supplies, 5 memories, 6 processors, 7 positioning modules, 8 communication modules, 9 vibration sensors, 10 mounting ports, 11 rotating shafts, 12 cover plates, 13 telescopic cylinder, 14 first motor, 15 screw, 16 slider, 17 rotary rod, 18 supporting plate, 19 connecting plate, 20 second motor, 21 fixed plate, 22 camera, 23 laser sensor, 24 universal self-locking wheel, 25 power connector, 26 clamping block, 27 clamping rod, 28 fixing block, 9 clips, 30 pull rods, 31 springs, 32 support rods, 33 limit blocks, 34 mounting slots, 35 slide rods, 36 guide rods, 37 guide blocks and 38 protective plates.
DESCRIPTION OF THE INVENTION The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the figures in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, but not all of them.
Example 1: Referring to Figure 1-4, the mine safety monitoring and early warning system based on data and model hybrid driving includes a main box 1 and an installation plate 2, the bottom of the main box 1 is rotatably connected with a plurality of universal self-locking wheels 24 to facilitate the movement of the main box 1, and a touch screen 3 is fixedly embedded at one side of the main box 1 to facilitate the input of control instructions and the display of monitoring data, the main box 1 is internally provided with a power supply 4, memory 5, processor 6, positioning module 7, communication module 8 and vibration sensor 9. The positioning module 7 is Beidou positioning module or GPS positioning module, which enhances the positioning accuracy of the positioning module 7, a power connector 25 is fixedly inserted into the bottom of the main box body 1, and the output of the power connector 25 is connected with the input of the power supply 4, which is convenient for 5
DESCRIPTION charging the power supply 4; 7502012
According to the invention, the top of the main box body 1 is provided with an installation opening 10, a cover plate 12 is rotatably connected in the installation opening 10 through a rotating shaft 11 to protect control elements, and the top of the main box body 1 is fixedly connected with a locking mechanism corresponding to the cover plate 12, for fixing the cover plate 12, the locking mechanism comprises a clamping block 26 and a clamping rod 27, the clamping rod 27 is slidably inserted on the clamping block 26, and the top of the cover plate 12 is fixedly connected with a fixing block 28 for fixing the cover plate 12;
According to the invention, the fixing block 28 is provided with a clamping groove corresponding to the clamping rod 27, one end of the clamping rod 27 close to the fixing block 28 is fixedly sleeved with a clamping sleeve 29 to prevent the clamping rod 27 from falling off the clamping block 26, one end of the clamping rod 27 far away from the clamping sleeve 29 is fixedly connected with a pull rod 30, and a spring 31 is sleeved on the clamping rod 27, and both ends of the spring 31 are fixedly connected with the clamping sleeve 29 and the clamping block 26, respectively, so that the clamping rod 27 is elastically supported;
In the invention, the bottom of one end of the main box body 1 far away from the touch screen 3 is fixedly connected with a telescopic cylinder 13 for adjusting the height of the mounting plate 2, the output end of the telescopic cylinder 13 is fixedly connected with the bottom of the mounting plate 2, and the bottom of the mounting plate 2 is fixedly connected with a support mechanism, which comprises a support rod 32 for supporting the mounting plate 2, the top of the main box body 1 is provided with a sliding cavity corresponding to the support rod 32, and the bottom of the support rod 32 is fixedly connected with a limiting block 33 to prevent the support rod 32 from falling out of the sliding cavity;
In the invention, one end of the mounting plate 2 is fixedly connected with the first motor 14 for driving the screw 15 to rotate, the top of the mounting plate 2 is provided with a mounting groove 34, the output end of the first motor 14 is fixedly connected with the screw 15 for driving the slider 16 to slide, and one end of the screw 15 located in the mounting groove 34 is screwed with the slider 16, and a sliding bar 35 is fixedly connected in the mounting groove 34 for supporting the slider 16;
In the invention, the slide block 16 is provided with a through hole corresponding to the
6
DESCRIPTION slide bar 35, the top of the mounting plate 2 is rotatably connected with a support plate 18 7502012 through a rotating rod 17, and the support plate 18 is connected with the slide block 16 through a connecting plate 19 for driving the support plate 18 to rotate, and both ends of the connecting plate 19 are rotatably connected with the slide block 16 and the support plate 18 respectively; In the invention, the top of the supporting plate 18 is fixedly connected with the second motor 20 for driving the fixed plate 21 to rotate, the output end of the second motor 20 is fixedly connected with the fixed plate 21, and the bottom of the fixed plate 21 is fixedly connected with the guide rod 36, For supporting the fixed plate 21, the bottom of the guide rod 36 is fixedly connected with a guide block 37, the top of the support plate 18 is provided with an annular slide rail corresponding to the guide block 37, and the top of the fixed plate 21 is fixedly connected with a protective plate 38 corresponding to the camera 22 to protect the camera 22; In the invention, one side of the fixed plate 21 is fixedly connected with a camera 22 and a laser sensor 23 for monitoring the external information of the mine, and the outputs of the camera 22, the power supply 4, the laser sensor 23, the positioning module 7 and the vibration sensor 9 are all connected with the inputs of the processor 6, Used to send monitoring data to the processor 6, the output of the processor 6 is connected with the input of the memory 5, the first motor 14, the second motor 20 and the telescopic cylinder 13, and used to control the first motor 14, the second motor 20 and the telescopic cylinder 13, and the output of the communication module 8 and the touch screen 3 are connected with the input of the processor 6 in two directions.
According to the invention, by starting the telescopic cylinder 13, the mounting plate 2 can be driven to move up and down to adjust the height of the supporting plate 18, and then the first motor 14 can drive the screw 15 to rotate, so that the angle of the supporting plate 18 can be adjusted by the action of the slider 16 and the rotating rod 17. Meanwhile, the second motor 20 can drive the supporting plate 18 to rotate and adjust the direction of the monitoring module.
According to the invention, through the arrangement of the camera 33 and the laser sensor 23, the external information of the mine can be collected, and then the monitored 7
DESCRIPTION information is sent to the processor 6, after the processor 6 processes the collected data, it is 7502012 sent to the remote control center through the communication module 8. According to the invention, through the arrangement of the signal monitoring module and the signal processing module, the system can timely and effectively monitor the safety of the mine and collect data, reveal the disaster-causing mechanism synchronously with the on-site rock mass response prediction, improve the accuracy of prediction and early warning, recognize the cause of the disaster, and provide technical support for targeted disaster prevention measures.
The above are only the preferred embodiments of the present invention, but the scope of protection of the present invention is not limited to this.
Anyone who is familiar with the technical field, within the technical scope disclosed by the present invention, can equivalently replace or change according to the technical scheme and inventive concept of the present invention, and should be covered in the scope of protection of the present invention. 8

Claims (10)

1. A mine safety monitoring and early warning system based on mixed driving of data 7502012 and model includes a main box body (1) and a mounting plate (2), characterized in that one side of the main box body (1) is fixedly embedded with a touch screen (3), and a power supply (4), a memory (5), a processor (6), a positioning module (7), A communication module (8) and a vibration sensor (9), wherein the top of the main box body (1) is provided with an installation opening (10), a cover plate (12) is rotatably connected in the installation opening (10) through a rotating shaft (11), and a locking mechanism corresponding to the cover plate (12) is fixedly connected to the top of the main box body (1); The bottom of one end of the main box body (1) far away from the touch screen (3) is fixedly connected with a telescopic cylinder (13), the output end of the telescopic cylinder (13) is fixedly connected with the bottom of the mounting plate (2), and the bottom of the mounting plate (2) is fixedly connected with a supporting mechanism; One end of the mounting plate (2) is fixedly connected with a first motor (14), the top of the mounting plate (2) is provided with a mounting groove (34), the output end of the first motor (14) is fixedly connected with a screw (15), and one end of the screw (15) located in the mounting groove (34) is screwed with a slide block (16), The top of the mounting plate (2) is rotatably connected with a support plate (18) through a rotating rod (17), and the support plate (18) is connected with the slider (16) through a connecting plate (19), and both ends of the connecting plate (19) are rotatably connected with the slider (16) and the support plate (18) respectively; The top of the support plate (18) is fixedly connected with a second motor (20), the output end of the second motor (20) is fixedly connected with a fixed plate (21), one side of the fixed plate (21) is fixedly connected with a camera (22) and a laser sensor (23), and the camera (22), the power supply (4), The output ends of the laser sensor (23), the positioning module (7) and the vibration sensor (9) are all connected with the input ends of the processor (6), and the output ends of the processor (6) are respectively connected with the memory (5), The input ends of the first motor (14), the second motor (20) and the telescopic cylinder (13) are connected, and the output ends of the communication module (8) and the touch screen (3) are bidirectionally connected with the input ends of the processor (6).
2. The mine safety monitoring and early warning system based on data and model hybrid 9
CLAIMS driving according to claim 1 is characterized in that the bottom of the main box body (1) is 0502012 rotatably connected with a plurality of universal self-locking wheels (24).
3. The mine safety monitoring and early warning system based on mixed driving of data and model according to claim 1 is characterized in that the bottom of the main box body (1) is fixedly inserted with a power connector (25), and the output end of the power connector (25) is connected with the input end of the power supply (4).
4. The mine safety monitoring and early warning system based on mixed driving of data and model according to claim 1 is characterized in that the locking mechanism comprises a clamping block (26) and a clamping rod (27), The clamping rod (27) is slidably inserted on the clamping block (26), the top of the cover plate (12) is fixedly connected with a fixing block (28), and the fixing block (28) is provided with a clamping groove corresponding to the clamping rod (27).
5. The mine safety monitoring and early warning system based on data and model hybrid driving according to claim 4 is characterized in that one end of the clamping rod (27) close to the fixed block (28) is fixedly sleeved with a clamping sleeve (29), One end of the clamping rod (27) far from the clamping sleeve (29) is fixedly connected with a pull rod (30); a spring (31) is sleeved on the clamping rod (27); and two ends of the spring (31) are fixedly connected with the clamping sleeve (29) and the clamping block (26) respectively.
6. The mine safety monitoring and early warning system based on mixed driving of data and model according to claim 1 is characterized in that the supporting mechanism comprises a supporting rod (32), the top of the main box body (1) is provided with a sliding cavity corresponding to the supporting rod (32), and the bottom of the supporting rod (32) is fixedly connected with a limiting block (33).
7. The mine safety monitoring and early warning system based on mixed driving of data and model according to claim 1 is characterized in that a slide bar (35) is fixedly connected in the installation groove (34), and a through hole corresponding to the slide bar (35) is formed on the slide block (16).
8. The mine safety monitoring and early warning system based on mixed driving of data and model according to claim 1 is characterized in that the bottom of the fixed plate (21) is fixedly connected with a guide rod (36), the bottom of the guide rod (36) is fixedly connected 10
CLAIMS with a guide block (37), and the top of the support plate (18) is provided with an annular slide 7502012 rail corresponding to the guide block (37).
9. The mine safety monitoring and early warning system based on data and model hybrid driving according to claim 1 is characterized in that the top of the fixed plate (21) is fixedly connected with a protective plate (38) corresponding to the camera (22).
10. The mine safety monitoring and early warning system based on data and model hybrid driving according to claim 1 is characterized in that the positioning module (7) is a Beidou positioning module or a GPS positioning module.
11
LU502012A 2022-05-05 2022-05-05 A Mine Safety Monitoring and Early Warning System Based On Mixed Driving of Data and Model LU502012B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
LU502012A LU502012B1 (en) 2022-05-05 2022-05-05 A Mine Safety Monitoring and Early Warning System Based On Mixed Driving of Data and Model

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU502012A LU502012B1 (en) 2022-05-05 2022-05-05 A Mine Safety Monitoring and Early Warning System Based On Mixed Driving of Data and Model

Publications (1)

Publication Number Publication Date
LU502012B1 true LU502012B1 (en) 2022-11-07

Family

ID=83945033

Family Applications (1)

Application Number Title Priority Date Filing Date
LU502012A LU502012B1 (en) 2022-05-05 2022-05-05 A Mine Safety Monitoring and Early Warning System Based On Mixed Driving of Data and Model

Country Status (1)

Country Link
LU (1) LU502012B1 (en)

Similar Documents

Publication Publication Date Title
US11841224B2 (en) Air-ground integrated landslide monitoring method and device
CN114383492B (en) Landslide displacement monitoring equipment and monitoring method based on GNSS and MEMS sensors
CN116760956B (en) Intelligent monitoring management system and method for urban comprehensive pipe rack
CN112525141B (en) A kind of measurement method for tunnel deformation measurement and its survey equipment
CN113606437A (en) All-weather inspection device for computer room
CN111809522B (en) BIM technology-based large-span bridge construction monitoring and management equipment
CN113309953A (en) Engineering machine tool monitoring device based on Internet of things
LU502012B1 (en) A Mine Safety Monitoring and Early Warning System Based On Mixed Driving of Data and Model
CN115050165A (en) Landslide disaster real-time monitoring and early warning system based on Beidou positioning
CN215573335U (en) Earthquake assessment device for reinforced concrete bridge
CN114704330A (en) Mine safety monitoring and early warning system based on data and model hybrid drive
CN221375308U (en) Computer lab rotating ring supervisory equipment
CN116817138A (en) Road flow monitoring and situation early warning device
CN212623073U (en) High and steep slope detection device
CN117789419A (en) GNSS displacement monitoring and early warning system
CN206504815U (en) A monitoring system integrating force measurement and cross-section imaging of anchor rod and cable
CN221725513U (en) A bridge seismic monitoring device
CN212866082U (en) Intelligent monitoring device for foundation pit settlement
CN221523356U (en) Warning device with prompt facility
CN219015367U (en) Mine slope monitoring device with protective function
CN209159536U (en) Vehicle-mounted detection apparatus suitable for distribution line inspection
CN208650915U (en) Mining multifunctional intelligent monitoring substation control cabinet
CN214843399U (en) A real-time monitoring and early warning device for ionospheric scintillation based on GNSS
CN116425033B (en) Tower crane omnidirectional rotating monitoring prism and its use method
CN219364553U (en) Foundation pit online monitoring equipment

Legal Events

Date Code Title Description
FG Patent granted

Effective date: 20221107