CN107680359B - Integration thing networking intelligence well lid - Google Patents
Integration thing networking intelligence well lid Download PDFInfo
- Publication number
- CN107680359B CN107680359B CN201710917082.XA CN201710917082A CN107680359B CN 107680359 B CN107680359 B CN 107680359B CN 201710917082 A CN201710917082 A CN 201710917082A CN 107680359 B CN107680359 B CN 107680359B
- Authority
- CN
- China
- Prior art keywords
- well lid
- antenna
- controller
- module
- well
- 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.)
- Active
Links
- 230000006855 networking Effects 0.000 title claims abstract description 17
- 230000010354 integration Effects 0.000 title claims description 8
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000009434 installation Methods 0.000 claims abstract description 20
- 238000005728 strengthening Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract 3
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000007639 printing Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 34
- 238000005516 engineering process Methods 0.000 abstract description 23
- 238000004891 communication Methods 0.000 description 38
- 238000013461 design Methods 0.000 description 21
- 230000006870 function Effects 0.000 description 20
- 238000007689 inspection Methods 0.000 description 16
- 239000011152 fibreglass Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000008901 benefit Effects 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 230000002354 daily effect Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012806 monitoring device Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
-
- H04B5/72—
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- 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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses an integrated Internet of things intelligent well lid which comprises a well lid body and a functional circuit system, wherein the functional circuit system is installed on the well lid body; the functional circuit system comprises a well lid position sensor, a controller, a LoRa module and a power supply module; the controller adopts a Bluetooth system on a chip (BLE SoC) which comprises a Bluetooth wireless transceiving interface and a universal asynchronous receiver/transmitter (UART) interface, wherein the Bluetooth wireless transceiving interface is connected with a Bluetooth antenna, the UART interface is connected with an LoRa module, and the LoRa module is provided with a wireless transceiving antenna; the power supply module provides a working power supply for the well lid position sensor, the controller and the LoRa module; be equipped with antenna installation window on the well lid body, the upper portion of antenna installation window is equipped with many both ends and is fixed in this internal strengthening rib of well lid, and the below of strengthening rib is equipped with glass steel baffle, and the wireless receiving and dispatching antenna of loRa module is fixed in glass steel baffle below to be located between the vertical direction projection of two adjacent strengthening ribs. The invention realizes networking and real-time monitoring of the well lid by using the LoRa Internet of things technology, and has low power consumption, low cost and excellent real-time property.
Description
Technical Field
The invention relates to the technical field of well lids in municipal public facilities, in particular to an integrated Internet of things intelligent well lid.
Background
At present, with the acceleration of urbanization process, municipal utilities construction develops rapidly, and the quantity of underground pipes to well covers in the departments of urban water supply, drainage, gas, heating power, housing, electric power, telecommunication, broadcast television and the like is huge and the distribution is wide. Due to the lack of effective real-time monitoring and management means, criminal behaviors such as prying the well lid to steal cables or stealing the well lid, damage and rainwater are caused when the well lid is washed away, so that normal work of related lines or pipelines is influenced, huge direct or indirect economic loss is caused, and a well mouth with the lost well lid can also cause great harm to vehicles and pedestrians on a road, so that people are injured or death incidents occur. Therefore, the well lid is subjected to digital and intelligent management, effective supervision on public facility resources is realized, social stability and personal safety of people are ensured, and the well lid has important practical significance.
The existing well lid monitoring is generally realized by additionally arranging a well lid monitoring device, whether the well lid is stolen or washed away is judged mainly by monitoring the movement or the inclined state of the well lid, then direct on-site warning is directly realized through sound/light warning, or warning is carried out to a remote control center monitoring system through a corresponding wireless communication network, the specific implementation modes are different, and the manufacturing cost, the operation and maintenance cost and the engineering practicability of the device are different greatly. In addition, as the well covers are widely distributed, and most of rainwater and sewage well covers have no commercial power supply line, the power supply mode and the communication mode of the well cover monitoring device need to be considered; meanwhile, the shielding problem of the well lid made of cast iron and cement on the wireless antenna, effective real-time judgment of the moving state of the well lid and the like are all required to be considered in the design of the well lid.
At present, the intelligent well lid mainly has the following defects:
1) the device has high cost and is not suitable for large-scale application
The existing intelligent well lid partially adopts an ultrasonic sensor, an inclination sensor and a pressure sensor to detect the movement of the well lid, the normal state needs to be kept for supplying power to the sensor, and the cost of the sensor and a corresponding detection circuit is higher. In addition, when the well cover is rolled by a vehicle, the ultrasonic sensor, the inclination sensor or the broken line detection sensing circuit is easy to misjudge and alarm, so that the anti-theft application is influenced;
2) the device has higher power consumption and unpractical performance
Well lid monitoring, the main objective is the existence (whether stolen or washed away) of detection well lid, and partial intelligent well lid has increased water level monitoring function to and the long-range well lid of realizing is closed and is opened the function, especially the latter, the great actuating mechanism of power is required, and practical value is not big, increases on foot the device consumption, also can increase the troublesome degree that the field personnel opened the well lid. In addition, in order to save power consumption, part of the well covers do not work in a normal state, and only work when abnormity (theft or flushing) occurs, and the monitoring system cannot know the daily state of the device and cannot judge whether the device has a fault or not;
3) the GPRS communication is adopted, and the operation and maintenance cost is high
The existing intelligent well lid and monitoring system mostly adopts GPRS communication or Beidou communication, the use of payment is needed, and when the number of well lids is large, the daily operation cost is a large burden for management departments; in addition, the power consumption of the GPRS communication or Beidou communication module is high, so that a large-capacity power supply needs to be configured or commercial power needs to be adopted, and the system cost and the construction and installation cost are further increased;
4) insufficient networking function of the internet of things
The intelligent well lid monitoring is a component of a smart city, and for some important monitoring places, a well lid management department can arrange a specially-assigned person to carry out inspection, and the intelligent well lid can provide an interconnection mode with inspection personnel conveniently, namely, the connection between people and objects; on the other hand, citizens as users of municipal facilities should provide a convenient way for citizens to inquire information (such as installation information and maintenance management information) of the well lid, so that the users can conveniently and accurately provide repair information to a management mechanism when finding that the well lid is damaged, and the municipal management participation degree of the citizens is improved;
5) insufficient function expandability
The intelligent well cover mainly takes the safety into consideration, and the existence of the well cover is mainly monitored; in addition, the methane concentration of pipelines at certain specific measuring points, such as densely populated areas, is too high, so that explosion threat is easily caused, and methane monitoring is needed; in an important rainwater pipeline, water level monitoring is needed for partial measuring points; or in the supervision and consideration of environmental protection, the water quality needs to be monitored at partial measuring points, and the like; therefore, the intelligent well lid is convenient to be extended and connected into other intelligent transmitters besides bearing the comprehensive monitoring of the well lid, so that the existing facility resources are comprehensively utilized to build a smart city together.
Disclosure of Invention
The invention aims to provide an integrated Internet of things intelligent well lid, which realizes real-time monitoring on the well lid by utilizing the Internet of things technology and has the advantages of low power consumption, low cost and excellent real-time property.
The technical scheme adopted by the invention is as follows: an integrated Internet of things intelligent well lid comprises a well lid body and a functional circuit system arranged on the well lid body;
the functional circuit system comprises a well lid position sensor, a controller, a LoRa module and a power supply module;
the controller adopts a Bluetooth system on a chip (BLE SoC) which comprises a Bluetooth wireless transceiving interface and a universal asynchronous receiver/transmitter (UART) interface, wherein the Bluetooth wireless transceiving interface is connected with a Bluetooth antenna, the UART interface is connected with an LoRa module, and the LoRa module is provided with a wireless transceiving antenna; the power supply module provides a working power supply for the well lid position sensor, the controller and the LoRa module;
be equipped with antenna installation window on the well lid body, the upper portion of antenna installation window is equipped with many both ends and is fixed in this internal strengthening rib of well lid, and the below of strengthening rib is equipped with the printing opacity baffle, and the wireless receiving and dispatching antenna of loRa module is fixed in the printing opacity baffle below to be located between the vertical direction projection of two adjacent strengthening ribs.
When the well lid monitoring system is applied, the Bluetooth wireless communication between the well lid and an external mobile phone, a tablet personal computer and other mobile terminals can be realized through the Bluetooth antenna, and the real-time monitoring and early warning of the well lid are facilitated. The LoRa module can realize the networking of the low-power consumption thing networking between the many well lids.
Furthermore, the controller also comprises an RS485 interface circuit module, and a second UART interface, wherein the controller is connected with the RS485 interface circuit module through the second UART interface so as to be connected with an external function extension module. The invention has rich functions and strong expandability
Preferably, the wireless transceiving antenna on the LoRa module is a rod antenna, the reinforcing ribs on the antenna mounting window are arranged in parallel on the same plane, and the distance between the adjacent reinforcing ribs is slightly greater than the width of the rod antenna. The rod-shaped antenna 4 is adopted instead of a PCB antenna, so that the strength of signal sending and receiving is enhanced, and a longer distance is kept for wireless communication, thereby being beneficial to the installation and the deployment of the intelligent well lid.
Preferably, the reinforcing rib on the antenna installation window is a reinforcing steel bar, and the light-transmitting baffle is made of light-transmitting glass fiber reinforced plastic. Can not destroy the intensity of well lid body when guaranteeing antenna receiving and dispatching performance.
Further, the power module comprises a solar panel, a rechargeable battery and a charging management circuit unit; the solar panel is arranged below the light-transmitting baffle of the antenna mounting window; the charging management circuit unit controls the charging of the rechargeable battery by the solar panel and the power supply output of the rechargeable battery. Preferably, the rechargeable battery is a single rechargeable 18650 lithium battery. The charge management of rechargeable batteries is prior art.
Preferably, the rechargeable battery and the charging management circuit unit in the controller, the LoRa module and the power module are integrated in a sealing box and are installed below the well lid body. Each pin in controller, loRa module and the power module is drawn forth through waterproof connector, can protect functional circuit part to avoid the influence of water, mud etc. even under the well lid is soaked by water, whole circuit arrangement still can work.
Preferably, well lid position sensor is including installing the travel switch in well lid edge respectively, and travel switch includes but the drive ball of butt between well lid edge and well head lateral wall, and the pressurized state change of drive ball can drive travel switch's contact state change, travel switch's signal output part connection director. Preferably, the controller further comprises a wake-up pin, and the signal output end of the travel switch is connected with the wake-up pin. When the well lid breaks away from the inspection well, the travel switch is closed, the awakening pin 101 of the system on chip 1 detects an interrupt signal and immediately enters a working state from an awakening state, and thus the real-time performance of monitoring is guaranteed.
Preferably, the well lid is provided with an opening hole, and an included angle between a connecting line from the travel switch to the center of the well lid and a connecting line from the opening hole to the center of the well lid is 8-15 degrees. When someone opens the well cover by using the opening hole, the design of the angle range of the invention can enable the travel switch to sense the displacement of the well cover more sensitively and rapidly.
Furthermore, the well lid position sensor also comprises a reflection-type photoelectric switch arranged at the edge of the well lid, and the connection line of the reflection-type photoelectric switch and the travel switch passes through the center of the well lid; the reflective photoelectric switch senses the distance information between the reflective photoelectric switch and the wellhead edge by utilizing the reflection action of the wellhead edge and transmits the distance information to the controller. Preferably, a light-transmitting partition plate is further arranged at the edge of the well cover and between the reflection-type photoelectric switch and the edge of the well mouth. The baffle can be made of transparent glass fiber reinforced plastics, so that the transmission of reflected light rays is not influenced, and the reflection type photoelectric switch can be protected from being influenced by external sludge, rainwater and the like.
Advantageous effects
Compared with the prior art, the invention has the following advantages and progresses:
1. the invention comprehensively utilizes the LoRa technology, the BLE technology and the photoelectric sensing technology, has few components and high integration level in the overall design, adopts low-power consumption devices, has lower device price, ensures low overall construction cost of the system on one hand, and is suitable for large-scale popularization and application; on the other hand, the daily power consumption of the whole device can be controlled within 20uA, a single 18650 rechargeable lithium battery can be adopted to supply power to the device, and the commercial power or a large-capacity battery is not needed, so that the engineering practicability of the well cover is promoted; in addition, the RS485 interface circuit is convenient to access other intelligent transmitters or integrate into other data acquisition stations, can monitor various physical quantities of the inspection well pipeline, and has multiple extensible functions and strong integratability;
2. the invention adopts the scheme of jointly monitoring whether the well cover is in existence or not or moves through the travel switch and the reflective photoelectric switch, and has the advantages that: in the aspect of price, compared with other schemes such as an ultrasonic sensor and an inclination sensor, the travel switch and the reflection-type photoelectric switch have the advantages of low price, simple and reliable functions and low environmental requirement. On one hand, on the aspect of functions, the real-time performance and the accuracy of manhole cover loss or mobile monitoring can be guaranteed, misjudgment alarming is reduced, and the practicability is improved; on the other hand, the detection means consumes low device power, and ensures low power consumption of the device;
3. the remote well lid monitoring network is constructed by adopting the LoRa technology, and compared with a common GPRS or Beidou communication mode, the remote well lid monitoring network is low in LoRa power consumption and works in a free frequency band; compared with the local area network communication modes such as ZigBee/WiFi and the like, the LoRa communication distance is as high as 10 kilometers, so that the method is a preferred mode for the battery-powered low-power-consumption Internet of things. In addition, a field communication mode is established by utilizing BLE, the short-distance communication mode of the current mainstream mobile terminals such as smart phones or tablet computers is met, great convenience is provided for managers and social public to realize information communication with the well lid, and daily operation management such as inspection or repair reporting is facilitated;
4. the invention adopts an integrated structure design, has simple component composition and can control the total manufacturing cost within 200 yuan. Through the application of the reinforcing steel bar array and the light-transmitting glass fiber reinforced plastic, on one hand, the wireless communication of the rod-shaped antenna can be realized, compared with the adoption of a PCB antenna, the wireless communication distance is long, the practical value is achieved, and the auxiliary application of the solar panel can be considered; on the other hand, compared with the design that the circuit is packaged in the groove which is arranged in the middle of the well cover and is in direct contact with the ground, the structural design of the well cover ensures the strength of the well cover, avoids the damage of the well cover caused by vehicle rolling, and also avoids the influence on the service life of a product caused by the fact that the rolling force is directly transmitted to the circuit device.
Drawings
FIG. 1 is a schematic block diagram of functional building blocks of the present invention;
FIG. 2 is a schematic diagram of an application system of the present invention;
fig. 3 is a schematic view of the manhole cover structure of the invention.
Detailed Description
The following further description is made in conjunction with the accompanying drawings and the specific embodiments.
With reference to fig. 1 to 3, the integrated internet of things intelligent well lid comprises a well lid body 01 and a functional circuit system installed on the well lid body 1;
the functional circuit system comprises a well lid position sensor, a controller 1, a LoRa module 3 and a power supply module;
the controller 1 adopts a Bluetooth system on a chip (BLE SoC) and comprises a Bluetooth wireless transceiving interface 104 and a UART interface 106, wherein the Bluetooth wireless transceiving interface 104 is connected with a Bluetooth antenna 2, the UART interface 106 is connected with an LoRa module 3, and the LoRa module 3 is provided with a wireless transceiving antenna 4; the power supply module provides a working power supply for the well lid position sensor, the controller 1 and the LoRa module 3;
be equipped with antenna installation window on the well lid body 01, the upper portion of antenna installation window is equipped with the strengthening rib 04 that many both ends are fixed in the well lid body 01, and the below of strengthening rib 04 is equipped with printing opacity baffle 05, and LoRa module 3's wireless receiving and dispatching antenna 4 is fixed in printing opacity baffle 05 below to be located between the vertical direction projection of two adjacent strengthening ribs 04.
Referring to fig. 2, when the manhole cover is applied, the bluetooth wireless communication between the manhole cover and an external mobile phone, a tablet personal computer and other mobile terminals can be realized through the bluetooth antenna 2, so that the real-time monitoring and early warning of the manhole cover are facilitated. The LoRa module can realize the networking of the low-power consumption thing networking between the many well lids.
Example 1
The invention also comprises an RS485 interface circuit module 7, the controller 1 also comprises a second UART interface 102, and the controller 1 is connected with the RS485 interface circuit module 7 through the second UART interface 102 and further connected with an external function extension module. The invention has rich functions and strong expandability
The Bluetooth antenna 2 adopts a Bluetooth PCB antenna, the wireless transceiving antenna 4 on the LoRa module 3 is a rod-shaped antenna, the reinforcing ribs 04 on the antenna mounting window are arranged in parallel on the same plane, and the distance between the adjacent reinforcing ribs 04 is slightly larger than the width of the rod-shaped antenna 4. The rod-shaped antenna 4 is adopted instead of a PCB antenna, so that the strength of signal sending and receiving is enhanced, and a longer distance is kept for wireless communication, thereby being beneficial to the installation and the deployment of the intelligent well lid.
The reinforcing rib 04 on the antenna installation window is a reinforcing steel bar, and the light-transmitting baffle plate 05 is made of light-transmitting glass fiber reinforced plastic. Can not destroy the intensity of well lid body when guaranteeing antenna receiving and dispatching performance.
Referring to fig. 1 and 3, the power module includes a solar panel 10, a rechargeable battery 8, and a charge management circuit unit 9; the solar panel 10 is arranged below the glass fiber reinforced plastic baffle plate 05 of the antenna mounting window; the charge management circuit unit 9 controls the charging of the rechargeable battery by the solar panel and the power output of the rechargeable battery. The rechargeable battery adopts a single rechargeable 18650 lithium battery. The charge management of rechargeable batteries is prior art.
Referring to fig. 3, the rechargeable battery and the charging management circuit unit in the controller 1, the LoRa module 3 and the power module are integrated on a circuit board 08, are disposed in the sealing box 6, and are installed below the manhole cover body 01. Each pin in controller, loRa module and the power module is drawn forth through waterproof connector 07, can protect functional circuit part to avoid the influence of water, mud etc. even under the well lid is soaked by water, whole circuit arrangement still can work.
Well lid position sensor is including installing travel switch 5 in well lid edge respectively, and travel switch 5 includes but the drive ball of butt between well lid edge and well head lateral wall, and the pressurized state change of drive ball can drive travel switch's contact state change, travel switch's signal output part connection director. The controller further comprises a wake-up pin 101, and a signal output end of the travel switch is connected with the wake-up pin. When the well lid breaks away from the inspection well, the travel switch is closed, the awakening pin 101 of the system on chip 1 detects an interrupt signal and immediately enters a working state from an awakening state, and thus the real-time performance of monitoring is guaranteed.
The well lid is provided with an opening hole 03, and an included angle between a connecting line from the travel switch 5 to the center of the well lid and a connecting line from the opening hole 03 to the center of the well lid is 8-15 degrees. When someone opens the well cover by using the opening hole, the design of the angle range of the invention can enable the travel switch to sense the displacement of the well cover more sensitively and rapidly.
The well lid position sensor also comprises a reflective photoelectric switch 6 arranged at the edge of the well lid, and the connection line of the reflective photoelectric switch 6 and the travel switch 5 passes through the center of the well lid; the reflective photoelectric switch senses the distance information between the reflective photoelectric switch and the wellhead edge by utilizing the reflection action of the wellhead edge and transmits the distance information to the controller. At the edge of the well cover, a light-transmitting partition plate 14 is arranged between the reflection-type photoelectric switch and the edge of the well mouth. The baffle can be made of transparent glass fiber reinforced plastics, so that the transmission of reflected light rays is not influenced, and the reflection type photoelectric switch can be protected from being influenced by external sludge, rainwater and the like.
Example 2
Referring to fig. 1, the low power consumption bluetooth system on chip BLE SoC is selected, the system on chip 1 is used as an integrated circuit chip, and is used as an intelligent well lid circuit main control CPU, and the integrated circuit chip has extremely low power consumption in working and sleeping states, and rich functions and interface resources, and is integrated with a wake-up pin 101, a universal UART interface 102, a voltage AD conversion pin 103, a bluetooth wireless transceiver circuit 104, a universal UART interface 106, and the like.
The Bluetooth wireless transceiver circuit 103 and the Bluetooth PCB antenna 2 in the system-on-chip 1 realize Bluetooth wireless communication between the device and external mobile terminals such as mobile phones, tablet computers and the like; the system on chip 1 and the LoRa module realize the low-power-consumption networking of the Internet of things, and the rod-shaped antenna 4 is adopted instead of a PCB antenna in order to enhance the signal sending and receiving strength, so that the wireless communication is kept a longer distance, and the installation and the deployment of the intelligent well lid are facilitated.
In the aspect of detecting whether the well cover exists or moves, in order to ensure the real-time performance and the accuracy of monitoring and simultaneously ensure the low-power consumption application of the device, the invention adopts a travel switch light 5 and a reflection type photoelectric switch 6. The travel switch 5 is mechanical, has no power consumption, is arranged at the edge of the well lid body, keeps a closed state at ordinary times, and is connected with a wake-up interrupt pin of the system-on-chip 1 through an on-off state signal; the reflective photoelectric switch 6 is formed by integrating an infrared light emitting diode and an NPN silicon phototransistor, has small volume and low price, is integrated with receiving and transmitting, can transmit infrared light, and then receives the infrared light of a reflecting surface to judge the distance between the reflective photoelectric switch and the transmitting surface. The device has low requirement on the reflecting surface, and non-light-transmitting materials such as iron, cement and the like can be used as the reflecting surface. The reflective photoelectric switches 6 are arranged on the edge of the well lid body and are distributed oppositely at an angle of 180 degrees with the travel switch 5, and the edge of the inspection well is used as a reflecting surface.
In a normal state, the system-on-chip 1 is in a dormant state, and the overall power consumption of the system is within 10 uA; once the manhole cover is separated from the inspection well, the travel switch is closed, the wake-up pin 101 of the system-on-chip 1 detects an interrupt signal and immediately enters a working state from a wake-up state, and thus the real-time performance of monitoring is guaranteed; meanwhile, in order to prevent erroneous judgment possibly caused by vehicle rolling or vibration and the like and ensure monitoring accuracy, after the system on chip 1 enters a working state, the power is supplied to the photoelectric reflection switch 6 through a controlled power supply, and a current signal output by the photoelectric reflection switch 6 is measured through the voltage AD conversion pin 103; if the measurement result is smaller than the set threshold, the fact that no emitting surface exists or the reflecting surface is far away indicates that the edge of the well cover opposite to the installation position of the travel switch is also separated from the inspection well, so that the fact that the well cover is separated is confirmed, and the well cover is possibly stolen or washed away; after confirmation, the system on chip 1 immediately sends status, time and alarm information to the monitoring center system through the LoRa module 3.
In the aspect of networking of the Internet of things, the low-power Bluetooth technology BLE is adopted to realize the close-range communication with terminal equipment (a mobile phone or PAD) in personnel handholding, and the LoRa wireless technology is adopted to realize the interconnection and intercommunication network with the monitoring center. Wherein, LoRa is one of Low Power Wide Area Network (LPWAN) communication technologies, and is an ultra-long distance wireless transmission scheme based on spread spectrum technology adopted and popularized by Semtech corporation in the united states. The proposal changes the prior compromise mode of transmission distance and power consumption, and can provide a simple sensing network and a system which can realize long distance, long battery life and large capacity for users. The LoRa technology has the characteristics of long distance, low power consumption (long battery life), multiple nodes, low cost and support of ranging and positioning, so that the LoRa technology is very suitable for the application of the internet of things requiring low power consumption, long distance, a large number of connections, positioning and tracking and the like. Compared with ZigBee/WIFI of a local area network, the wireless communication device has the advantage of long communication distance; compared with GPRS/4G and the like of a mobile wide area network, the system has the advantages of low power consumption and no need of paying. Currently, the LoRa technology and the narrowband internet of things (NB-IoT) are two low-power wide area network communication technologies with the greatest development prospect, but the NB _ IoT needs to depend on network construction of a mobile communication operator, and is not completely commercialized at present. Therefore, the invention applies the LoRa technology to the monitoring of the intelligent well lid and has the technical advance.
In the aspect of function expandability of the device, the invention mainly monitors whether the well cover exists, then the UART interface 102 of the system on chip 1 is connected with the external RS485 interface circuit 7, and an RS485 communication bus is reserved to be connected with an externally expanded intelligent transmitter or other data acquisition systems. For example, if the well lid of some inspection wells needs to monitor the water level or the biogas content, the corresponding water level sensor or biogas sensor and the corresponding measurement circuit can be packaged into an intelligent transmitter with an RS485 communication interface, and the intelligent well lid can communicate with the intelligent transmitter to obtain corresponding measurement information and report the measurement information to the monitoring center. On the other hand, the intelligent well lid can also send the state information of the intelligent well lid to other data acquisition systems such as a corresponding water level observation station through an RS485 bus, and the observation station can report the information in a unified manner, so that a convenient and fast integration mode is provided for various data acquisition and monitoring of the smart city.
In the aspect of power supply design of the device, the device has less chip forming amount and low overall power consumption through the device type selection and the overall design. The device is in a dormant state for most of time, and can report the current well lid state to the monitoring center for a plurality of times at regular time every day according to the set frequency, so that a manager can confirm that the running state of the device is good, and simultaneously, the monitoring center is also supported to call the awakening device; in case the well lid disappearance condition takes place, under the effect of pin is awaken up in the external interrupt, the device awakens up, starts collection and communication to keep high-frequency measurement communication, in order to ensure that alarm information sends monitoring center, the well lid that loses is look for in accessible loRa location simultaneously. According to the design of the overall scheme, the power consumption of the device in a dormant state is within 20uA, so that a single-section rechargeable 18650 lithium battery 8 (the capacity is generally about 2000 mAH) can be used as a main power supply of the system, and the device can work for 3 years; meanwhile, in order to further realize maintenance-free of a power supply, a small solar panel 10 and a rechargeable management circuit 9 are designed, and when the well cover is integrally designed, transparent glass fiber reinforced plastics are reserved, so that the well cover is convenient to use in places with good illumination conditions. It should be noted that, because the well lid is in the environment comparatively badly, dust, mud etc. can influence the effect that solar panel received the sunshine, and solar power source only uses as supplementary charging here.
In a specific application process, a schematic diagram of an intelligent well lid internet of things application system is shown in fig. 2. The application system of the Internet of things mainly comprises an intelligent well lid 01, a LoRa gateway 12, a cloud server 13, various servers 14, a smart phone 15, a tablet 16, related personnel 17 and the like. In the comprehensive application process, the intelligent well lid 01 is used as a data monitoring terminal, and forms a LoRa local area Internet of things through the LoRa gateway 12; the LoRa gateway 12 reports the data to the cloud server 13 through its own ethernet or a mobile communication network such as 4G; the various servers 14 include an application server, a data center, a WEB server and the like which form a monitoring center, and can perform specific function operations such as data communication and data calculation with the cloud server. The related personnel 17 include well lid management personnel and the public, use the mobile terminal (the smart phone 5 or the tablet 16) installed with the corresponding APP application program, and also can perform data interaction with the cloud server through the mobile communication network to inquire information or receive various information pushed by the cloud server.
In addition, in the well lid application field, related personnel 17 (inspection personnel or social public), such as pipeline inspection personnel, can use the mobile terminal to inspect and read the state of the intelligent well lid and the acquired collected data through low-power consumption Bluetooth communication BLE; or, social public discovers that the well lid is unusual (for example, although there is, but the damage is serious), can be connected with intelligent well lid through corresponding APP is used, the manufacturing information and the fortune dimension management information of inquiry well lid to can click in APP and can carry out abnormal conditions and report, make things convenient for the timely well lid of changing of administrative agency, further reduce the risk that the well lid goes out the problem. According to the invention, through the application of the LoRa technology and the BLE technology, the function of the Internet of things of the well lid is optimized and improved, and the information interaction between people and the well lid is more convenient.
The invention not only carries out optimization innovation on circuit and functional design, but also realizes low cost and high performance of the device; the structure is correspondingly designed integrally, so that the cost controllability, the quality reliability, the installation convenience and the engineering feasibility of the device are ensured.
As shown in fig. 3, the integrated intelligent well lid mainly comprises a well lid body 01, a well lid hinge 02, an opening hole 03, a travel switch 5, a waterproof connector 07, a sealing box 06, a single-section 18650 lithium battery 8, a circuit board 08, a steel bar array 05, a light-transmitting glass fiber reinforced plastic 05, a rubber rod antenna 4, a solar panel 10, a reflective photoelectric switch component 6 and a light-transmitting glass fiber reinforced plastic 09. The well lid body 01, the well lid hinge 02 and the opening hole 03 are standard components of the well lid, and the invention mainly relates to the design of other components.
Specifically, in order to solve the key problem that the antenna is shielded by the cast iron well lid, the invention adopts a series of parallel arranged steel bar array 05 areas (the distance between the steel bars is slightly wider than that of the rod-shaped antenna), so that the rod-shaped antenna 4 can receive an external LoRa signal through a gap between two steel bars, the wireless communication distance is expanded as much as possible, the strength of the well lid is ensured not to be influenced, the damage of the well lid caused by rolling of a vehicle is avoided, and the product quality is ensured; in addition, the transparent glass fiber reinforced plastic 05 is arranged below the steel bar array 04, and the rod-shaped antenna 4 and the solar panel 10 are arranged below the transparent glass fiber reinforced plastic 05 in sequence; by the design, the outer part of the well cover facing the ground is isolated from the rod-shaped antenna 4 and the solar panel 10 in the well cover, so that dust, sewage and the like are prevented from directly contacting the rod-shaped antenna 4 and the solar panel 10, and the service life of a product is prevented from being influenced; the transparent glass fiber reinforced plastic 10 can transmit electromagnetic waves and light, so that the rod antenna 4 and the solar panel 10 can normally work according to design.
As shown in fig. 3, in the aspect of real-time monitoring of the movement or the loss of the manhole cover, the travel switch 5 and the reflective photoelectric switch 6 are both installed at the edge of the manhole cover body, are distributed at 180 degrees, and are distributed at an included angle of about 10 degrees with the opening hole 3. The travel switch 5 is contacted with the edge of the inspection well through a ball body at the top and is in a pressed state at ordinary times; even if the vehicle rolls usually, the vibration in the up-and-down direction of the well cover is mainly used, the side vibration is small, and the state misjudgment of the travel switch during the rolling of the vehicle is avoided; the reflection-type photoelectric switch depends on the reflection of light by the edge of the inspection well to measure the distance from the switch to the edge of the inspection well. By taking the above measures, once
Someone opens the well lid through opening hole 03, then travel switch 5's pressure disappears, resumes free state, gives the signal of telecommunication of change immediately, through interrupting the pin, awakens the master control circuit in the dormancy and begins work. The light-transmitting glass fiber reinforced plastic 09 is arranged in front of the reflection-type photoelectric switch 6, the reflection effect of the edge of the inspection well is not affected, the reflection-type photoelectric switch 6 is isolated from the outside, and the influence of sludge and rainwater on the normal use of the reflection-type photoelectric switch 6 is avoided.
The length and width of the circuit board 08 are the same as the size of the single 18650 lithium battery 8, and are packaged in the sealing box 6 together, corresponding core wires are led out through the waterproof connector 07 and are correspondingly connected with the travel switch 5, the reflective optical switch 6 and the solar panel 10, so that the whole circuit device can still work under the condition that the well lid is soaked in water.
The structural design is suitable for cast iron well lids and steel fiber cement well lids; to adopting novel combined material's well lid, it is more convenient to carry out the integrated design, directly can use corresponding printing opacity combined material, with the circuit arrangement part arrange in inside cavity can. Compared with the common well cover, the structural design has the advantages that the material cost is not obviously increased except for lower circuit cost and disposable mold opening cost, and the controllability of the product cost is ensured.
In summary, the invention provides an integrated internet of things intelligent well lid which is innovatively developed on the basis of a low-power-consumption wide area network communication technology loRa, a low-power-consumption Bluetooth communication technology BLE, a photoelectric sensing technology, a low-power-consumption technology and the like on the basis of a general design idea, a scheme and a composition structure, and mainly solves the following technical problems:
1) well lid monitoring devices's cost and engineering practicality problem: the application environment of the well lid is fully considered, a low-power-consumption design technology is adopted in the whole scheme, improvement and innovation are carried out on the aspects of power supply, a wireless communication mode, antenna arrangement and functional device composition, and the defects that the cost of the existing device is too high and the later-period freight cost is too high are overcome.
2) The effectiveness and real-time problem of the well lid monitoring device are as follows: through photoelectric sensing technology and integrated structure design, the normal condition of well lid can be uploaded to monitored control system according to setting for the periodicity, and the removal change situation of well lid is accurately judged and can be uploaded to monitored control system and give an alarm in real time.
3) Well lid monitoring devices's thing networking function problem: adopt loRa and BLE technique, establish complete thing networking monitoring network, not only provide the function of comprehensive control for well lid management mechanism, provide the communication interconnection of on-the-spot and well lid for patrolling and examining personnel and resident simultaneously, provide the individual inquiry function and the state of well lid information state and report the function, improve the participation and the convenience of public to the well lid management, serve the management in wisdom city better.
The device has the advantages of low manufacturing cost, convenient integrated installation, low daily operation and maintenance cost, strong communication interaction function and good monitoring real-time performance, mainly solves the problems of cost and engineering practicability of well lid monitoring and the problem of internet of things link of well lid management, and has advancement on the whole design scheme and stronger feasibility on engineering implementation.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. An integrated Internet of things intelligent well lid is characterized by comprising a well lid body and a functional circuit system arranged on the well lid body;
the functional circuit system comprises a well lid position sensor, a controller, a LoRa module and a power supply module;
the controller adopts a Bluetooth system on a chip (BLE SoC) which comprises a Bluetooth wireless transceiving interface and a universal asynchronous receiver/transmitter (UART) interface, wherein the Bluetooth wireless transceiving interface is connected with a Bluetooth antenna, the UART interface is connected with an LoRa module, and the LoRa module is provided with a wireless transceiving antenna; the power supply module provides a working power supply for the well lid position sensor, the controller and the LoRa module;
the manhole cover comprises a manhole cover body, and is characterized in that an antenna installation window is arranged on the manhole cover body, a plurality of reinforcing ribs with two ends fixed in the manhole cover body are arranged on the upper portion of the antenna installation window, a light-transmitting baffle is arranged below each reinforcing rib, and a wireless transceiving antenna of a LoRa module is fixed below each light-transmitting baffle and positioned between vertical direction projections of two adjacent reinforcing ribs;
the well lid position sensor comprises a travel switch arranged at the edge of the well lid, the travel switch comprises a driving ball which can be abutted between the edge of the well lid and the side wall of the well mouth, the change of the pressed state of the driving ball can drive the change of the contact state of the travel switch, and the signal output end of the travel switch is connected with the controller;
the controller also comprises a wake-up pin, and the signal output end of the travel switch is connected with the wake-up pin;
the manhole cover is provided with an opening hole, and an included angle between a connecting line from the travel switch to the center of the manhole cover and a connecting line from the opening hole to the center of the manhole cover is 8-15 degrees;
the well lid position sensor also comprises a reflection-type photoelectric switch arranged at the edge of the well lid, and the connection line of the reflection-type photoelectric switch and the travel switch passes through the center of the well lid; the reflective photoelectric switch senses the distance information between the reflective photoelectric switch and the edge of the wellhead by utilizing the reflection action of the edge of the wellhead and transmits the distance information to the controller;
when the well lid is separated from the well mouth, the pressure state of the driving ball changes to close the travel switch, and the controller wakes up the pin to detect an interrupt signal and enters a working state;
after the controller enters a working state, measuring a current signal output by the reflection-type photoelectric switch: if the measurement result is smaller than the set threshold value, the existence of no reflecting surface or the separation of the reflecting surface is judged, and the detachment of the well cover is confirmed.
2. The intelligent well lid of integration thing networking of claim 1, characterized by also includes RS485 interface circuit module, and the controller still includes the second UART interface, and the controller passes through second UART interface connection RS485 interface circuit module, and then connects external function extension module.
3. The intelligent well lid of integration thing networking of claim 1, characterized by, the wireless transceiver antenna on the loRa module is rod antenna, and the strengthening rib on the antenna installation window is the coplanar mutual parallel arrangement, and the distance between the adjacent strengthening rib is slightly greater than rod antenna's width.
4. The intelligent well lid of integration thing networking of claim 1, characterized by, the strengthening rib on the antenna installation window is the reinforcing bar, and the printing opacity baffle adopts printing opacity glass steel material.
5. The intelligent well lid of integrated thing networking of claim 1, characterized in that, the power module includes solar panel, rechargeable battery and charge management circuit unit; the solar panel is arranged below the light-transmitting baffle of the antenna mounting window; the charging management circuit unit controls the solar panel to charge the rechargeable battery and controls the power supply output of the rechargeable battery.
6. The intelligent well lid of integration thing networking of claim 1, characterized by, well lid edge is equipped with the printing opacity baffle, and the printing opacity baffle is located between reflection type photoelectric switch and well head edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710917082.XA CN107680359B (en) | 2017-09-30 | 2017-09-30 | Integration thing networking intelligence well lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710917082.XA CN107680359B (en) | 2017-09-30 | 2017-09-30 | Integration thing networking intelligence well lid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107680359A CN107680359A (en) | 2018-02-09 |
| CN107680359B true CN107680359B (en) | 2020-09-29 |
Family
ID=61137810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710917082.XA Active CN107680359B (en) | 2017-09-30 | 2017-09-30 | Integration thing networking intelligence well lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107680359B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110297438A (en) * | 2018-03-22 | 2019-10-01 | 湖北亿立能科技股份有限公司 | Intelligent well cover monitoring system |
| CN108445816A (en) * | 2018-05-03 | 2018-08-24 | 昆明理工大学 | A kind of real-time embedded monitoring device of fire water box based on Lora |
| CN108560607A (en) * | 2018-07-11 | 2018-09-21 | 天津云拓网络科技有限公司 | A kind of well lid linked system |
| CN109246613A (en) * | 2018-09-12 | 2019-01-18 | 深圳市亿兆互联技术有限公司 | A kind of cesspool cover safety monitoring system |
| CN109451458A (en) * | 2018-11-14 | 2019-03-08 | 广东奔潮科技发展有限公司 | A kind of intelligence connection all things on earth transmission control unit (TCU) |
| CN109634172A (en) * | 2018-12-06 | 2019-04-16 | 广东华南智慧城发展有限公司 | A kind of internet of things sensors data acquisition and transmission device |
| CN109697839A (en) * | 2018-12-11 | 2019-04-30 | 重庆邮电大学 | Intelligent well cover monitoring system based on technology of Internet of things |
| CN109451566A (en) * | 2018-12-21 | 2019-03-08 | 西安工业大学 | Wisdom well lid monitors circuit with super low-power consumption |
| CN109914483A (en) * | 2019-04-17 | 2019-06-21 | 北京航星网讯技术股份有限公司 | Laser combustible gas monitors well lid |
| CN110056010A (en) * | 2019-05-17 | 2019-07-26 | 南京管科智能科技有限公司 | A kind of intelligent well cover and preparation method thereof with wireless charging function |
| CN110060461A (en) * | 2019-05-21 | 2019-07-26 | 苏州集联科物联科技有限公司 | A kind of cable well lid monitoring system and its method based on NB wireless telecommunications |
| CN110209090A (en) * | 2019-06-14 | 2019-09-06 | 国网江苏省电力有限公司常州供电分公司 | Intelligent cable well lid |
| CN110779573A (en) * | 2019-10-30 | 2020-02-11 | 重庆瑞坤科技发展股份有限公司 | Wisdom district thing networking data acquisition box |
| CN111508193A (en) * | 2020-04-11 | 2020-08-07 | 宁夏北斗科技有限公司 | Intelligent well lid monitoring device |
| CN112133048B (en) * | 2020-08-24 | 2022-01-04 | 深圳供电局有限公司 | Cable channel anti-intrusion alarm system |
| CN112050847A (en) * | 2020-09-07 | 2020-12-08 | 南京金固智慧市政研究院有限公司 | Low-power consumption wireless communication's well lid monitor |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8368552B2 (en) * | 2009-12-22 | 2013-02-05 | At&T Intellectual Property I, L.P. | Manhole security device and methods thereof |
| CN202025396U (en) * | 2011-04-21 | 2011-11-02 | 李晨天 | Outdoor manhole burglary-resisting and damage-prevention alarm system |
| US9209513B2 (en) * | 2013-06-07 | 2015-12-08 | Apple Inc. | Antenna window and antenna pattern for electronic devices and methods of manufacturing the same |
| CN103854400A (en) * | 2014-02-24 | 2014-06-11 | 三维通信股份有限公司 | Well lid intelligent monitoring device |
| CN204348911U (en) * | 2014-12-31 | 2015-05-20 | 中国电子科技集团公司第五十一研究所 | Antenna shield and antenna |
| CN204496654U (en) * | 2015-03-27 | 2015-07-22 | 苏州光格设备有限公司 | Well lid supervisory system |
| CN105427497A (en) * | 2015-12-15 | 2016-03-23 | 重庆金灿钢结构有限公司 | Photoelectric burglar alarm manhole cover and burglar alarm method thereof |
| CN105720353B (en) * | 2016-01-26 | 2018-07-17 | 山东康威通信技术股份有限公司 | A kind of antenna structure and its installation method of wireless network covering well lid |
| CN206408651U (en) * | 2016-12-14 | 2017-08-15 | 山东康威通信技术股份有限公司 | Caution type well lid terminal and initiative alarming type alarm manhole well lid monitoring system |
| CN106450670A (en) * | 2016-12-19 | 2017-02-22 | 福建三鑫隆信息技术开发股份有限公司 | Antenna mounting and protecting structure on housing washer |
| CN106846756A (en) * | 2017-03-28 | 2017-06-13 | 冷明 | A kind of door state monitoring and warning device based on LoRa Internet of Things transmission technologys |
| CN107222366B (en) * | 2017-06-08 | 2019-12-20 | 江苏博大光通物联科技有限公司 | Inspection well environment monitoring method, equipment and system based on low-power-consumption wide area network |
-
2017
- 2017-09-30 CN CN201710917082.XA patent/CN107680359B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107680359A (en) | 2018-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107680359B (en) | Integration thing networking intelligence well lid | |
| CN203982175U (en) | A kind of Intelligent well cover supervisory system | |
| CN204066294U (en) | A kind of wireless manhole cover anti-theft equipment of combined type and burglary-resisting system thereof | |
| KR101278485B1 (en) | Manhole cover for manhole control | |
| CN202025396U (en) | Outdoor manhole burglary-resisting and damage-prevention alarm system | |
| CN203982530U (en) | A kind of Intelligent well cover card | |
| CN105261132A (en) | Transformer intelligent antitheft system | |
| CN205334687U (en) | Mud -rock flow monitoring and early warning system | |
| KR100989933B1 (en) | A antenna structure for monitoring of manhole | |
| KR20070089470A (en) | Low power wireless system for monitoring of manhole | |
| CN204347999U (en) | A kind of manhole cover burglary-resisting system | |
| CN112327729A (en) | Underground cable monitoring system | |
| CN112363203A (en) | Device for monitoring abnormal movement of well lid of electric power tunnel | |
| CN110297438A (en) | Intelligent well cover monitoring system | |
| CN103606233A (en) | Well lid monitoring and warning system and method | |
| CN101246076A (en) | Valve switch detector and monitoring and tracking system using the same | |
| CN106169220A (en) | Cover of inspection well MANET real-time monitoring system and using method thereof | |
| CN206800463U (en) | A kind of safe theft-proof well cover | |
| CN216188048U (en) | Wisdom sanitation dustbin overflows full monitoring devices and system | |
| CN103956011A (en) | Antitheft sensor for inspection well cover | |
| CN207567822U (en) | A kind of intelligent well cover | |
| CN203366465U (en) | Manhole cover monitoring system | |
| CN207878513U (en) | A kind of manhole cover anti-theft warning device with spilling water detection | |
| CN203966264U (en) | Manhole cover anti-theft sensor | |
| CN203588401U (en) | Manhole cover monitoring alarm system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |