CN109341759B - Solar monitoring system - Google Patents

Solar monitoring system Download PDF

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Publication number
CN109341759B
CN109341759B CN201811098166.6A CN201811098166A CN109341759B CN 109341759 B CN109341759 B CN 109341759B CN 201811098166 A CN201811098166 A CN 201811098166A CN 109341759 B CN109341759 B CN 109341759B
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CN
China
Prior art keywords
protective shell
monitoring
groove
sensor
solar
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN201811098166.6A
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Chinese (zh)
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CN109341759A (en
Inventor
李雍
李艳
张仪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Tunto Green Power Technology Development Co ltd
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Guangzhou Tunto Green Power Technology Development Co ltd
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Publication date
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Priority to CN201811098166.6A priority Critical patent/CN109341759B/en
Publication of CN109341759A publication Critical patent/CN109341759A/en
Application granted granted Critical
Publication of CN109341759B publication Critical patent/CN109341759B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The invention discloses a solar monitoring system, which comprises upright posts, a first connecting rod arranged on one side of the top end of each upright post, a solar generator arranged at the top of each first supporting rod, a second connecting rod arranged on the other side of the top end of each upright post, a supporting disk arranged at the top of each second supporting rod, a protective shell arranged at the top of each supporting disk, a monitoring part arranged in the protective shell, an alarm part and a monitoring box arranged in the middle of each upright post, wherein solar energy can be converted into electric energy through the solar generator, so that the monitoring can be continued, and the laying of a power grid can be avoided by utilizing the solar energy, the monitoring cost is greatly reduced, the solar energy is clean energy, the solar monitoring system conforms to the sustainable development concept, wireless transmission and wireless thoroughness are realized by adopting independent solar energy to supply power, the components of the device are flexible and small, the installation is, the safety is improved.

Description

Solar monitoring system
Technical Field
The invention relates to a monitoring system, in particular to a solar monitoring system.
Background
Some remote areas and areas with relatively abundant solar energy resources are available: such as forest mountainous areas, mining scenic areas, highways and the like. In the regions, the situations are far away, so that people are rare, no power network line passes through the regions, real-time monitoring management is needed, and remote video monitoring is difficult to realize in the remote regions which cannot obtain power supply.
Usually, in such remote areas, many people need to be arranged for supervision in order to achieve the purposes of safety monitoring and environmental protection, and in the supervision process, workers waste time and labor, the labor cost is high, and a monitoring system connected with a power grid can break to cause danger. Therefore, the solar monitoring system is improved.
Disclosure of Invention
The invention provides a solar monitoring system, aiming at solving the defects that in the prior art, usually in the remote area, a lot of people need to be arranged for supervision so as to realize the purposes of safety monitoring and environmental protection, workers waste time and labor in the supervision process, the labor cost is high, and the monitoring system connected with a power grid is broken to cause danger.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a solar monitoring system, which comprises a stand column and also comprises:
the solar power generation device comprises a first connecting rod, a first support rod and a second support rod, wherein the first connecting rod is arranged on one side of the top end of the stand column, the stand column is fixedly connected with the first support rod through the first connecting rod, and a solar power generator is arranged at the top of the first support rod;
the second connecting rod is arranged on the other side of the top end of the upright column, the upright column is fixedly connected with the second supporting rod through the second connecting rod, a supporting disc is arranged at the top of the second supporting rod, a protective shell is arranged at the top of the supporting disc, and a monitoring part is arranged in the protective shell;
the rain gauge comprises an alarm piece and a detection box which are arranged in the middle of an upright post, wherein a rainfall sensor is arranged at the top of the detection box, a wireless transceiver is arranged in the middle of the inner wall of the detection box, an air speed sensor is arranged at the bottom of the wireless transceiver, a temperature and humidity sensor is arranged on one side of the air speed sensor, and an evaporation sensor is arranged right above the temperature and humidity sensor;
arrange the safety box of stand bottom in, the outer wall activity of safety box is provided with the emergency exit, the inside of safety box is provided with battery and controller, the bottom of safety box is provided with the bottom plate that is used for connecting ground, rain sensor, wireless transceiver, air velocity transducer temperature and humidity sensor, evaporation capacity sensor, warning piece and supervisory control piece all pass through controller and battery electric connection, wireless transceiver and external mobile device signal connection.
As a preferred technical scheme of the invention, a first groove is formed in the middle of the bottom end of the protective shell, a second groove opposite to the first groove is formed in the middle of the top end of the supporting disk, a third groove and a fourth groove are respectively formed in the inner walls of the first groove and the second groove, a rotary column is arranged at the bottom end of the first groove, the protective shell is rotatably connected with the supporting disk through the rotary column, a torsion spring is sleeved outside the rotary column, and two ends of the torsion spring are respectively connected with the inner walls of the third groove and the fourth groove in a clamping manner.
As a preferable technical scheme of the invention, one side of the bottom end of the protective shell is provided with a sliding block, and the side of the top end of the supporting disk is provided with an annular sliding groove matched with the sliding block.
As a preferable technical scheme of the present invention, a charge and discharge controller is disposed on the top of the storage battery, and the storage battery is electrically connected to the solar generator through the charge and discharge controller.
As a preferable technical scheme of the invention, an included angle between the second supporting rod and the upright post is between 30 and 60 degrees.
As a preferable technical scheme of the invention, the bottom of the outer wall of the detection box is provided with a plurality of ventilation openings.
The invention has the beneficial effects that:
1. solar generator can be with solar energy transformation for the electric energy, make the monitoring can last, and can avoid laying the electric wire netting through utilizing solar energy, greatly reduced the cost of monitoring, and solar energy is clean energy, accord with sustainable development theory, through adopting solar energy independent power supply, wireless transmission has been realized, thoroughly wireless ization, the device subassembly is nimble, it is small and exquisite, the installation is also convenient, it is independent between every stand, the security is improved, avoid personnel carelessness on around run into danger because of the electric wire, and the device maintenance cost is few, low in cost.
2. Through the protective shell and the supporting disk, when strong wind in the external environment blows on the protective shell, as one end of the protective shell is conical, the protective shell is rotatably connected with the supporting disk, the orientation of the protective shell is changed by wind, the smaller end of the protective shell is opposite to the incoming direction of the wind under the action of the wind, the acting force of the wind on the protective shell is reduced, thereby improving the safety of the protective shell, monitoring the rainfall in the environment through the rainfall sensor in the monitoring box, the wind speed sensor can monitor the wind speed in the environment, the temperature and humidity sensor can monitor the temperature and humidity in the environment, the evaporation amount of the moisture in the environment can be monitored through the evaporation amount sensor, the wireless transceiver can be convenient for a user to remotely operate each sensor, and the information collected in each sensor can be sent to the external mobile equipment, so that the labor intensity of workers is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a solar monitoring system according to the present invention;
FIG. 2 is a schematic view of a monitoring box of a solar monitoring system according to the present invention;
FIG. 3 is a schematic view of the internal structure of a protective case of a solar monitoring system according to the present invention;
FIG. 4 is a schematic diagram of a side view of a protective case of a solar monitoring system according to the present invention;
fig. 5 is a schematic circuit block diagram of a solar monitoring system according to the present invention.
In the figure: 1. a column; 2. a first connecting rod; 3. a first support bar; 4. a solar power generator; 5. a second connecting rod; 6. a second support bar; 7. a support disc; 8. a protective shell; 9. an alarm member; 10. a monitoring box; 11. a rainfall sensor; 12. a wireless transceiver; 13. a wind speed sensor; 14. a temperature and humidity sensor; 15. an evaporation amount sensor; 16. a ventilation opening; 17. a safety box; 18. a safety door; 19. a storage battery; 20. a controller; 21. a base plate; 22. monitoring the control; 23. a first groove; 24. a second groove; 25. a third groove; 26. a fourth groove; 27. a spin column; 28. a torsion spring; 29. a slider; 30. an annular chute.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the solar monitoring system of the present invention includes a vertical column 1, and further includes:
the solar energy monitoring device is characterized in that a first connecting rod 2 is arranged on one side of the top end of an upright post 1, the upright post 1 is fixedly connected with a first supporting rod 3 through the first connecting rod 2, a solar generator 4 is arranged at the top of the first supporting rod 3, solar energy can be converted into electric energy through the solar generator 4, monitoring can be continued, a power grid can be prevented from being laid by utilizing the solar energy, monitoring cost is greatly reduced, the solar energy is clean energy and accords with the sustainable development concept, wireless transmission is realized by adopting independent solar energy power supply, wireless transmission is thoroughly realized, the device is flexible, small and convenient to install, each upright post 1 is independent, safety is improved, and danger caused by careless electric wires of surrounding personnel is avoided, and the device is low in maintenance cost and low in manufacturing cost;
the second connecting rod 5 is arranged on the other side of the top end of the stand column 1, the stand column 1 is fixedly connected with the second supporting rod 6 through the second connecting rod 5, the top of the second supporting rod 6 is provided with a supporting disk 7, the top of the supporting disk 7 is provided with a protective shell 8, a monitoring control part 22 is arranged inside the protective shell 8, when strong wind in the external environment blows on the protective shell 8 through the protective shell 8 and the supporting disk 7, because one end of the protective shell 8 is conical, the protective shell 8 is rotatably connected with the supporting disk 7, the direction of the protective shell 8 is changed by the wind, and under the action of the wind force, the smaller end of the protective shell 8 is opposite to the incoming direction of the wind, the acting force of the wind blowing on the protective shell 8 is reduced;
the rain monitoring device comprises an alarm part 9 and a monitoring box 10 which are arranged in the middle of an upright post 1, the top of the monitoring box 10 is provided with a rainfall sensor 11, the middle of the inner wall of the monitoring box 10 is provided with a wireless transceiver 12, the bottom of the wireless transceiver 12 is provided with an air velocity sensor 13, one side of the air velocity sensor 13 is provided with a temperature and humidity sensor 14, an evaporation sensor 15 is arranged right above the temperature and humidity sensor 14, the rainfall in the environment can be monitored by the rainfall sensor 11 in the monitoring box 10, the air velocity in the environment can be monitored by the air velocity sensor 13, the temperature and humidity in the environment can be monitored by the temperature and humidity sensor 14, the evaporation of the moisture in the environment can be monitored by the evaporation sensor 15, the wireless transceiver 12 not only facilitates the remote operation of each sensor of a user, but also can send the information collected in each, the labor intensity of workers is reduced;
arrange the safety box 17 of stand 1 bottom in, the outer wall activity of safety box 17 is provided with emergency exit 18, the inside of safety box 17 is provided with battery 19 and controller 20, the bottom of safety box 17 is provided with the bottom plate 21 that is used for connecting ground, rainfall sensor 11, wireless transceiver 12, wind speed sensor 13 temperature and humidity sensor 14, evaporation capacity sensor 15, alarm 9 and control piece 22 all through controller 20 and battery 19 electric connection, wireless transceiver 12 and external mobile device signal connection.
Wherein, the middle part of the bottom end of the protective shell 8 is provided with a first groove 23, the middle part of the top end of the support disc 7 is provided with a second groove 24 just opposite to the first groove 23, the inner walls of the first groove 23 and the second groove 24 are respectively provided with a third groove 25 and a fourth groove 26, the bottom end of the first groove 23 is provided with a rotary column 27, the protective shell 8 is rotatably connected with the support disc 7 through the rotary column 27, the outer part of the rotary column 27 is sleeved with a torsion spring 28, two ends of the torsion spring 28 are respectively connected with the inner wall of the third groove 25 and the inner wall of the fourth groove 26 in a clamping manner, the protective shell 8 and the support disc 7 can relatively rotate through the rotary column 27, when the protective shell 8 is blown by external wind, the protective shell 8 can rotate, the conical shell at the rear part of the protective shell 8 can reduce the influence of the wind on the protective shell 8, thereby prolonging the, by means of the torsion spring 28, the protective casing 8 will be restored to its original position by the torsion spring 28 when the wind stops.
Wherein, one side of protective housing 8 bottom is provided with slider 29, and the avris on supporting disk 7 top is provided with slider 29 assorted annular spout 30, through slider 29 and annular spout 30, is blown under the effect of external wind power as protective housing 8, and protective housing 8 can follow slider 29 and slide along annular spout 30 together, has improved the stability of protective housing 8.
The top of the storage battery 19 is provided with a charge and discharge controller, the storage battery 19 is electrically connected with the solar generator 4 through the charge and discharge controller, and the charge and discharge between the solar generator 4 and the storage battery 19 can be controlled through the charge and discharge controller.
Wherein, the contained angle between second bracing piece 6 and the stand 1 is between 30 degrees to 60 degrees, can improve the stability of supporting disk 7 through the second bracing piece 6 that is certain contained angle with stand 1.
Wherein, the bottom of monitoring case 10 outer wall is provided with a plurality of ventilation openings 16, can make the outside air and the circulation of wind of monitoring case 10 through ventilation opening 16, and then get into monitoring case 10, make things convenient for each sensor of monitoring case 10 inside to monitor.
When the solar energy monitoring system is used, when sunlight irradiates on the plate surface of the solar generator 4, the solar energy is converted into electric energy, the electric energy enters the storage battery 19 through the charge-discharge controller, the storage battery 19 can provide electric energy for the controller 20, the alarm piece 9, the rainfall sensor 11, the wireless transceiver 12, the wind speed sensor 13, the temperature and humidity sensor 14 and the evaporation sensor 15, so that the environment can be monitored by utilizing the sensors, the alarm piece 9 is a horn with an HM-130U model, the rainfall sensor 11 is C301 in model, the wireless transceiver 12 is GF-4058 in model, the wind speed sensor 13 is HS-FS01 in model, the temperature and humidity sensor 14 is RS-WS-N01-2 in model, the evaporation sensor 15 is XS-ZF02 in model, the storage battery 19 is STC-HSE-38-12 in model, the controller 20 is STC12C5A60S2 in model, through wireless transceiver 12 not only can the person of facilitating the use remote operation each sensor, and can with the information transmission who collects in each sensor to external mobile device in, the intensity of labour who has alleviateed the staff, through adopting solar energy independent power supply, wireless transmission has been realized, thoroughly wireless ization, the device subassembly is nimble, and is small and exquisite, it is also convenient to install, it is independent between every stand 1, the security is improved, avoid personnel carelessly around run into danger because of the electric wire, and the device maintenance cost is few, the cost is low.
When the strong wind is scraped to external environment, wind blows on protective housing 8, because protective housing 8 rotates with supporting disk 7 and is connected, and the one end of protective housing 8 is the toper, wind effect can make protective housing 8 rotate on supporting disk 7 on protective housing 8, under the effect of wind force, protective housing 8 is the arrival of conical one end can be towards the wind, thereby the effort of wind on protective housing 8 has been reduced, protective action has been played to protective housing 8, avoid the strong wind to cause the harm to protective housing 8, can improve the stability when protective housing 8 rotates through slider 29 and annular spout 30, through torsion spring 28, stop when wind, perhaps wind-force is less, protective housing 8 can resume original position under torsion spring 28's effect.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. A monitoring system powered by solar cells, comprising a column (1), characterized in that it further comprises: the solar power generation device comprises a first connecting rod (2) arranged on one side of the top end of an upright post (1), wherein the upright post (1) is fixedly connected with a first supporting rod (3) through the first connecting rod (2), and a solar power generator (4) is arranged at the top of the first supporting rod (3); the second connecting rod (5) is arranged on the other side of the top end of the upright post (1), the upright post (1) is fixedly connected with the second supporting rod (6) through the second connecting rod (5), a supporting disk (7) is arranged at the top of the second supporting rod (6), a protective shell (8) is arranged at the top of the supporting disk (7), and a monitoring part (22) is arranged inside the protective shell (8); a first groove (23) is formed in the middle of the bottom end of the protective shell (8), a second groove (24) opposite to the first groove (23) is formed in the middle of the top end of the supporting disc (7), a third groove (25) and a fourth groove (26) are formed in the inner walls of the first groove (23) and the second groove (24) respectively, a rotary column (27) is arranged at the bottom end of the first groove (23), the protective shell (8) is rotatably connected with the supporting disc (7) through the rotary column (27), a torsion spring (28) is sleeved outside the rotary column (27), and two ends of the torsion spring (28) are connected with the inner wall of the third groove (25) and the inner wall of the fourth groove (26) in a clamping mode respectively; a sliding block (29) is arranged on one side of the bottom end of the protective shell (8), and an annular sliding groove (30) matched with the sliding block (29) is arranged on the side of the top end of the supporting disk (7); the protective shell (8) and the supporting disk (7) can rotate relatively through the rotating column (27), when the protective shell (8) is blown by outside wind, the protective shell (8) is blown under the action of the outside wind, the protective shell (8) rotates, the protective shell (8) slides along the annular sliding groove (30) along with the sliding block (29), the conical shell at the rear of the protective shell (8) lightens the influence of the wind on the protective shell (8), the stability of the protective shell (8) is improved, the service life of the protective shell (8) is prolonged, and through the torsion spring (28), when the wind stops, the torsion spring (28) restores the protective shell (8) to the original position; the monitoring device comprises an alarm piece (9) and a monitoring box (10) which are arranged in the middle of a stand column (1), wherein a rainfall sensor (11) is arranged at the top of the monitoring box (10), a wireless transceiver (12) is arranged in the middle of the inner wall of the monitoring box (10), an air speed sensor (13) is arranged at the bottom of the wireless transceiver (12), a temperature and humidity sensor (14) is arranged on one side of the air speed sensor (13), and an evaporation sensor (15) is arranged right above the temperature and humidity sensor (14); a plurality of air vents (16) are arranged at the bottom of the outer wall of the monitoring box (10); air outside the monitoring box (10) can circulate through the air vents (16) and then enter the monitoring box (10), so that each sensor inside the monitoring box (10) can be conveniently monitored; the wireless transceiver (12) is convenient for a user to remotely operate each sensor and send the information collected by each sensor to the external mobile equipment; the safety box is characterized by comprising a safety box (17) arranged at the bottom of the upright post (1), a safety door (18) is movably arranged on the outer wall of the safety box (17), a storage battery (19) and a controller (20) are arranged inside the safety box (17), a bottom plate (21) used for being connected with the ground is arranged at the bottom end of the safety box (17), the rainfall sensor (11), the wireless transceiver (12), the wind speed sensor (13), the temperature and humidity sensor (14), the evaporation sensor (15), the alarm part (9) and the monitoring part (22) are electrically connected with the storage battery (19) through the controller (20), and the wireless transceiver (12) is in signal connection with external mobile equipment; the top of the storage battery (19) is provided with a charge-discharge controller, and the storage battery (19) is electrically connected with the solar generator (4) through the charge-discharge controller; the charging and discharging controller can control the charging and discharging between the solar generator (4) and the storage battery (19).
2. A monitoring system powered by solar cells according to claim 1, characterized in that the angle between the second support bar (6) and the upright (1) is between 30 and 60 degrees.
CN201811098166.6A 2018-09-20 2018-09-20 Solar monitoring system Expired - Fee Related CN109341759B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811098166.6A CN109341759B (en) 2018-09-20 2018-09-20 Solar monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811098166.6A CN109341759B (en) 2018-09-20 2018-09-20 Solar monitoring system

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CN109341759A CN109341759A (en) 2019-02-15
CN109341759B true CN109341759B (en) 2021-05-07

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206002141U (en) * 2016-08-30 2017-03-08 浙江中环检测科技股份有限公司 A kind of self-powered scenic environment automatic monitoring system
CN206890383U (en) * 2017-06-16 2018-01-16 吉川科技集团有限公司 A kind of intelligent air gridding monitoring device
CN207050780U (en) * 2017-08-21 2018-02-27 西安紫珺环境科技有限公司 A kind of construction site environment monitoring device
CN107786846A (en) * 2016-08-31 2018-03-09 福建省劲安节能监测技术有限公司 A kind of water resource remote monitoring device suitable for field
CN207662456U (en) * 2017-11-28 2018-07-27 中棠建设发展有限公司 A kind of municipal environment supervision instrument based on Internet of Things
CN108519632A (en) * 2018-06-15 2018-09-11 武汉中天恒禹信息技术有限公司 One rod-type watermark protocol image monitoring station
CN207850443U (en) * 2018-05-13 2018-09-11 西安科技大学 Freeway Slope Stability monitoring data collecting transmitter based on Internet of Things

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206002141U (en) * 2016-08-30 2017-03-08 浙江中环检测科技股份有限公司 A kind of self-powered scenic environment automatic monitoring system
CN107786846A (en) * 2016-08-31 2018-03-09 福建省劲安节能监测技术有限公司 A kind of water resource remote monitoring device suitable for field
CN206890383U (en) * 2017-06-16 2018-01-16 吉川科技集团有限公司 A kind of intelligent air gridding monitoring device
CN207050780U (en) * 2017-08-21 2018-02-27 西安紫珺环境科技有限公司 A kind of construction site environment monitoring device
CN207662456U (en) * 2017-11-28 2018-07-27 中棠建设发展有限公司 A kind of municipal environment supervision instrument based on Internet of Things
CN207850443U (en) * 2018-05-13 2018-09-11 西安科技大学 Freeway Slope Stability monitoring data collecting transmitter based on Internet of Things
CN108519632A (en) * 2018-06-15 2018-09-11 武汉中天恒禹信息技术有限公司 One rod-type watermark protocol image monitoring station

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