CN111932836A - Geological disaster monitoring device - Google Patents
Geological disaster monitoring device Download PDFInfo
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- CN111932836A CN111932836A CN202010834907.3A CN202010834907A CN111932836A CN 111932836 A CN111932836 A CN 111932836A CN 202010834907 A CN202010834907 A CN 202010834907A CN 111932836 A CN111932836 A CN 111932836A
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- rod
- fixedly connected
- geological disaster
- data acquisition
- monitoring device
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 239000002689 soil Substances 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/38—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by folding, e.g. pivoting or scissors tong mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Power Engineering (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a geological disaster monitoring device which comprises a device body and a sensor, wherein a height adjusting mechanism is arranged in the device body, and the adjusting mechanism comprises a threaded rod, a support ring, a connecting plate and a support plate; the bottom of the supporting plate is provided with a supporting mechanism, the outer side wall of the device body is provided with a motor, an output shaft of the motor is connected with a threaded rod, and the supporting ring is in threaded connection with the threaded rod; articulated on the support ring have the hinge bar, and connecting plate and backup pad are all articulated through hinge bar and support ring, and the connecting plate top is connected with the connecting rod, and the connecting rod is connected with the mounting panel, installs data acquisition mechanism on the mounting panel. The geological disaster monitoring device provided by the invention can realize the adjustment of the angle of the solar panel and the position of the rain gauge, can realize the combined monitoring of rainfall, soil moisture content and landslide displacement, and has a simple structure; utilize the cooperation of lower margin inserted bar and reinforcing block to use, improved detection device's support steadiness.
Description
Technical Field
The invention relates to the technical field of geological disaster monitoring, in particular to a geological disaster monitoring device.
Background
The geological disasters such as collapse, landslide, debris flow and the like bring great harm to the life and property safety of people. In order to reduce the threat and damage of geological disasters to people's lives, the geological disaster monitoring and early warning technology is continuously developed, and monitoring equipment and devices for geological disasters play an important role in the geological disaster monitoring and early warning process. At present, geological disaster monitoring equipment faces a plurality of problems, such as single geological disaster parameter, poor stability of a monitoring device, incapability of adjusting the angle of a solar panel and the position of a rain gauge and the like.
Disclosure of Invention
The invention aims to provide a geological disaster monitoring device to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a geological disaster monitoring device, which comprises a device body and a sensor and is characterized in that a height adjusting mechanism is arranged in the device body, and the adjusting mechanism comprises a threaded rod rotatably connected with the device body, a support ring sleeved on the threaded rod, a connecting plate arranged above the threaded rod and a support plate arranged below the threaded rod; the bottom of the supporting plate is provided with a supporting mechanism; a motor is fixedly arranged on the outer side wall of the device body, and an output shaft of the motor is fixedly connected with the threaded rod; threads are arranged on the inner side wall of the support ring, and the support ring is in threaded connection with the threaded rod; the support ring is hinged with a hinge rod, the connecting plate and the support plate are hinged with the support ring through the hinge rod, and the connecting plate and the support plate are connected with the inner wall of the device body in a sliding manner; the connecting plate top fixedly connected with connecting rod, the connecting rod passes device body top fixedly connected with mounting panel, install data acquisition mechanism on the mounting panel.
Preferably, the data acquisition mechanism comprises a data acquisition box and a solar panel which are respectively arranged at two ends of the mounting plate, and the top of the data acquisition box is provided with a rain gauge; a storage battery, a power supply controller and a data acquisition and transmission module are arranged in the data acquisition box; the storage battery and the solar panel are electrically connected with the power supply controller, the power supply controller is electrically connected with the data acquisition and transmission module, and the sensor and the rain gauge are electrically connected with the data acquisition and transmission module.
Preferably, fixedly connected with stand and electric telescopic handle on the mounting panel, the solar panel both ends respectively with stand and electric telescopic handle's end is articulated.
Preferably, the supporting mechanism comprises a supporting rod fixedly connected with the supporting plate, a pressing plate fixedly connected with the tail end of the supporting rod and a foot inserting rod fixedly connected with the bottom end of the pressing plate; a through groove for the supporting rod to penetrate is formed in the bottom of the device body, and the bottom end of the ground pin inserting rod is of a conical structure.
Preferably, the inner part of the foundation inserted rod is of a hollow structure, reinforcing blocks are symmetrically arranged in the foundation inserted rod, the reinforcing blocks are connected with the foundation inserted rod in a sliding mode, an opening is formed in the side wall of the foundation inserted rod, and the reinforcing blocks are matched with the opening; the pressing plate is provided with a through hole, a vertical rod is inserted in the through hole, the bottom of the vertical rod is fixedly connected with a plug-in connector, the bottom end of the plug-in connector is of a conical structure, the tops of the two reinforcing blocks are provided with conical grooves, and the conical grooves are matched with the plug-in connector.
Preferably, a spring is fixedly connected between the two reinforcing blocks.
Preferably, the top of the upright rod is fixedly connected with a pedal.
Preferably, the sensors are classified into a water content sensor and a displacement sensor.
The invention discloses the following technical effects: the geological disaster monitoring device provided by the invention can realize the adjustment of the angle of the solar panel and the position of the rain gauge, improve the power generation efficiency of the solar panel and ensure that the rain gauge is not influenced; the rainfall, the soil moisture content and the landslide displacement can be jointly monitored, and the structure is simple; utilize the cooperation of lower margin inserted bar and reinforcing block to use, improved detection device's support steadiness.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection of the data collection box of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1;
FIG. 4 is a schematic view of the reinforcing blocks extending out of the anchor insert;
the device comprises a device body, a sensor 2, a threaded rod 3, a support ring 4, a connecting plate 5, a supporting plate 6, a motor 7, a hinge rod 8, a connecting rod 9, a mounting plate 10, a data acquisition box 11, a solar panel 12, a rain gauge 13, a storage battery 14, a power supply controller 15, a data acquisition and transmission module 16, an upright column 17, an electric telescopic rod 18, a supporting rod 19, a pressing plate 20, a foot pin 21, a through groove 22, a reinforcing block 23, an opening 24, an upright rod 25, a plug 26, a conical groove 27, a spring 28 and a pedal 29.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a geological disaster monitoring device, which comprises a device body 1 and a sensor 2, wherein the sensor 2 is divided into a water content sensor and a displacement sensor; a height adjusting mechanism is arranged in the device body 1, and the adjusting mechanism comprises a threaded rod 3 rotationally connected with the device body 1, a support ring 4 sleeved on the threaded rod 3, a connecting plate 5 arranged above the threaded rod 3 and a support plate 6 arranged below the threaded rod 3; the bottom of the supporting plate 6 is provided with a supporting mechanism; a motor 7 is fixedly arranged on the outer side wall of the device body 1, and an output shaft of the motor 7 is fixedly connected with the threaded rod 3; threads are arranged on the inner side wall of the support ring 4, and the support ring 4 is in threaded connection with the threaded rod 3; the support ring 4 is hinged with a hinge rod 8, the connecting plate 5 and the support plate 6 are hinged with the support ring 4 through the hinge rod 8, and the connecting plate 5 and the support plate 6 are connected with the inner wall of the device body 1 in a sliding manner; connecting plate 5 top fixedly connected with connecting rod 9, connecting rod 9 passes 1 top fixedly connected with mounting panel 10 of device body, install data acquisition mechanism on the mounting panel 10.
Further, the data acquisition mechanism comprises a data acquisition box 11 and a solar panel 12 which are respectively arranged at two ends of the mounting plate 10, and a rain gauge 13 is arranged at the top of the data acquisition box 11; in order to ensure that the rain gauge 13 is not affected by the solar panel 12, the rain gauge 13 is flush with the solar panel 12; the data acquisition box 11 is internally provided with a storage battery 14, a power supply controller 15 and a data acquisition and transmission module 16; the storage battery 14 and the solar panel 12 are electrically connected with the power supply controller 15, the power supply controller 15 is electrically connected with the data acquisition and transmission module 16, and the sensor 2 and the rain gauge 13 are electrically connected with the data acquisition and transmission module 16.
Further, for realizing that solar panel 12 angularly is adjustable, improve solar panel 12's generating efficiency, fixedly connected with stand 17 and electric telescopic handle 18 on mounting panel 10, solar panel 12 both ends respectively with stand 17 and electric telescopic handle 18's end is articulated.
Further, the supporting mechanism comprises a supporting rod 19 fixedly connected with the supporting plate 6, a pressing plate 20 fixedly connected with the tail end of the supporting rod 19, and a foot inserting rod 21 fixedly connected with the bottom end of the pressing plate 20; a through groove 22 for the supporting rod 19 to penetrate through is formed in the bottom of the device body 1, and the bottom end of the ground pin 21 is of a conical structure.
Further, in order to ensure the supporting stability of the monitoring device, the interior of the anchor insert rod 21 is of a hollow structure, reinforcing blocks 23 are symmetrically arranged in the anchor insert rod 21, the reinforcing blocks 23 are slidably connected with the anchor insert rod 21, an opening 24 is formed in the side wall of the anchor insert rod 21, and the reinforcing blocks 23 are matched with the opening 24; the pressing plate 20 is provided with a through hole, a vertical rod 25 is inserted in the through hole, the top of the vertical rod 25 is fixedly connected with a pedal 29, the bottom of the vertical rod 25 is fixedly connected with a plug-in connector 26, the bottom end of the plug-in connector 26 is of a conical structure, the tops of the two reinforcing blocks 23 are provided with conical grooves 27, and the conical grooves 27 are matched with the plug-in connectors 26.
Furthermore, in order to facilitate the fixed connection of the spring 28 between the two reinforcing blocks 23 of the monitoring device, the spring 28 is disposed at the side of the reinforcing block 23 to prevent the plug 26 from being affected by the spring 28 when pressed down.
When the geological disaster monitoring device is used, the device is placed at a position to be monitored, the ground pin 21 is inserted into soil, the motor 7 is started, the motor 7 drives the threaded rod 3 to rotate, so that the support ring 4 on the threaded rod 3 moves on the threaded rod 3, the hinge rod 8 is used for enabling the connecting plate 5 and the support plate 6 to respectively slide upwards and downwards along the inner wall of the device body 1, the rain gauge 13 and the solar panel 12 are lifted to a proper height, then the pedal 29 is stepped by feet, the plug connector 26 is inserted into the conical groove 27, the plug connector 26 is used for enabling the two reinforcing blocks 23 to be extruded out of the ground pin 21 along the opening 24, the reinforcing blocks 23 can extend into the soil to form barbs, the reinforcing purpose is achieved, and the support stability of the detection device is improved. When the position of the detection device needs to be changed, the pedal 29 is lifted upwards, and the two reinforcing blocks 23 are retracted into the ground inserting rod 21 under the action of the spring 28, so that the ground inserting rod 21 can be conveniently pulled out of the soil.
The geological disaster monitoring device provided by the invention can realize combined monitoring of rainfall, soil moisture content and landslide displacement, has a simple structure, and solves the problems that the existing geological disaster monitoring equipment has single parameter, the monitoring device is poor in stability, the angle of the solar panel 12 and the position of the rain gauge 13 cannot be adjusted, and the like.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (8)
1. A geological disaster monitoring device comprises a device body (1) and a sensor (2), and is characterized in that a height adjusting mechanism is arranged in the device body (1), and the adjusting mechanism comprises a threaded rod (3) rotatably connected with the device body (1), a support ring (4) sleeved on the threaded rod (3), a connecting plate (5) arranged above the threaded rod (3) and a support plate (6) arranged below the threaded rod (3); the bottom of the supporting plate (6) is provided with a supporting mechanism; a motor (7) is fixedly mounted on the outer side wall of the device body (1), and an output shaft of the motor (7) is fixedly connected with the threaded rod (3); threads are arranged on the inner side wall of the support ring (4), and the support ring (4) is in threaded connection with the threaded rod (3); the support ring (4) is hinged with a hinge rod (8), the connecting plate (5) and the support plate (6) are hinged with the support ring (4) through the hinge rod (8), and the connecting plate (5) and the support plate (6) are in sliding connection with the inner wall of the device body (1); connecting plate (5) top fixedly connected with connecting rod (9), connecting rod (9) pass device body (1) top fixedly connected with mounting panel (10), install data acquisition mechanism on mounting panel (10).
2. Geological disaster monitoring device according to claim 1, characterized in that: the data acquisition mechanism comprises a data acquisition box (11) and a solar panel (12) which are respectively arranged at two ends of the mounting plate (10), and a rain gauge (13) is arranged at the top of the data acquisition box (11); a storage battery (14), a power supply controller (15) and a data acquisition and transmission module (16) are installed in the data acquisition box (11); the solar rain gauge is characterized in that the storage battery (14) and the solar panel (12) are electrically connected with the power supply controller (15), the power supply controller (15) is electrically connected with the data acquisition and transmission module (16), and the sensor (2) and the rain gauge (13) are electrically connected with the data acquisition and transmission module (16).
3. A geological disaster monitoring device according to claim 2, characterized in that: fixedly connected with stand (17) and electric telescopic handle (18) on mounting panel (10), solar panel (12) both ends respectively with the end of stand (17) and electric telescopic handle (18) is articulated.
4. Geological disaster monitoring device according to claim 1, characterized in that: the supporting mechanism comprises a supporting rod (19) fixedly connected with the supporting plate (6), a pressing plate (20) fixedly connected with the tail end of the supporting rod (19) and a foot inserting rod (21) fixedly connected with the bottom end of the pressing plate (20); a through groove (22) for the supporting rod (19) to penetrate is formed in the bottom of the device body (1), and the bottom end of the ground pin inserting rod (21) is of a conical structure.
5. Geological disaster monitoring device according to claim 1, characterized in that: the interior of the foundation insert rod (21) is of a hollow structure, reinforcing blocks (23) are symmetrically arranged in the foundation insert rod (21), the reinforcing blocks (23) are connected with the foundation insert rod (21) in a sliding mode, an opening (24) is formed in the side wall of the foundation insert rod (21), and the reinforcing blocks (23) are matched with the opening (24); the pressing plate (20) is provided with a through hole, a vertical rod (25) is inserted in the through hole, the bottom of the vertical rod (25) is fixedly connected with a plug-in connector (26), the bottom end of the plug-in connector (26) is of a conical structure, the tops of the two reinforcing blocks (23) are provided with conical grooves (27), and the conical grooves (27) are matched with the plug-in connector (26).
6. Geological disaster monitoring device according to claim 5, characterized in that: a spring (28) is fixedly connected between the two reinforcing blocks (23).
7. Geological disaster monitoring device according to claim 5, characterized in that: the top of the upright rod (25) is fixedly connected with a pedal (29).
8. Geological disaster monitoring device according to claim 1, characterized in that: the sensor (2) is divided into a water content sensor and a displacement sensor.
Priority Applications (1)
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CN202010834907.3A CN111932836A (en) | 2020-08-19 | 2020-08-19 | Geological disaster monitoring device |
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CN202010834907.3A CN111932836A (en) | 2020-08-19 | 2020-08-19 | Geological disaster monitoring device |
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CN202010834907.3A Pending CN111932836A (en) | 2020-08-19 | 2020-08-19 | Geological disaster monitoring device |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112856097A (en) * | 2021-02-04 | 2021-05-28 | 林玉如 | Detection apparatus for municipal administration pipeline damage induces road bed cavity has or not |
CN113236931A (en) * | 2021-05-14 | 2021-08-10 | 武昌理工学院 | Electronic information signboard with adjustable height |
CN113433296A (en) * | 2021-08-16 | 2021-09-24 | 贵阳容慧精工机械制造有限公司 | Portable soil pollution check out test set |
CN114446015A (en) * | 2022-02-09 | 2022-05-06 | 山东省地质矿产勘查开发局第五地质大队(山东省第五地质矿产勘查院) | Geological disaster induced landslide monitoring devices |
CN114812665A (en) * | 2022-03-09 | 2022-07-29 | 国网湖北省电力有限公司咸宁供电公司 | Transmission line geology and outer broken calamity monitoring devices |
CN115076531A (en) * | 2022-05-30 | 2022-09-20 | 朱慧超 | Many topography adaptation installation type geological disasters early warning device |
WO2023168783A1 (en) * | 2022-03-07 | 2023-09-14 | 河北地质大学 | Stress sensor for geological disaster monitoring |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112856097A (en) * | 2021-02-04 | 2021-05-28 | 林玉如 | Detection apparatus for municipal administration pipeline damage induces road bed cavity has or not |
CN113236931A (en) * | 2021-05-14 | 2021-08-10 | 武昌理工学院 | Electronic information signboard with adjustable height |
CN113236931B (en) * | 2021-05-14 | 2022-09-02 | 武昌理工学院 | Electronic information signboard with adjustable height |
CN113433296B (en) * | 2021-08-16 | 2024-05-07 | 陈杰 | Portable soil pollution check out test set |
CN113433296A (en) * | 2021-08-16 | 2021-09-24 | 贵阳容慧精工机械制造有限公司 | Portable soil pollution check out test set |
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