WO2017171281A2 - Manhole cover for monitoring state of underground facility on basis of low-power wide-area (lpwa) network - Google Patents

Manhole cover for monitoring state of underground facility on basis of low-power wide-area (lpwa) network Download PDF

Info

Publication number
WO2017171281A2
WO2017171281A2 PCT/KR2017/002919 KR2017002919W WO2017171281A2 WO 2017171281 A2 WO2017171281 A2 WO 2017171281A2 KR 2017002919 W KR2017002919 W KR 2017002919W WO 2017171281 A2 WO2017171281 A2 WO 2017171281A2
Authority
WO
WIPO (PCT)
Prior art keywords
manhole cover
antenna
manhole
sensor
space
Prior art date
Application number
PCT/KR2017/002919
Other languages
French (fr)
Korean (ko)
Other versions
WO2017171281A3 (en
Inventor
조종화
이슬비
허재회
Original Assignee
주식회사 네이블커뮤니케이션즈
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020160080435A external-priority patent/KR101880472B1/en
Application filed by 주식회사 네이블커뮤니케이션즈 filed Critical 주식회사 네이블커뮤니케이션즈
Publication of WO2017171281A2 publication Critical patent/WO2017171281A2/en
Publication of WO2017171281A3 publication Critical patent/WO2017171281A3/en

Links

Images

Classifications

    • 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

Definitions

  • the present invention relates to a manhole cover for monitoring the status of underground facilities based on low-power wide-area network (LPWAN).
  • LPWAN low-power wide-area network
  • the general manhole management method is that the worker visits the manhole periodically and checks the inside directly, and thus the maintenance cost is high, and there is a risk that the worker has an accident while working inside the manhole.
  • the manhole cover cuts off electric and radio waves due to its material, so in order to collect the measurement result of the sensor installed inside the manhole, the operator opens the manhole cover and releases the radio wave blocking. After that, sensor measurement results should be collected. In this case, the risk of personnel accidents can be reduced, but the maintenance cost is still high.
  • the M2M / IoT-based sewer manhole monitoring system used in a conventional smart building can monitor the change in the amount of water flowing in the sewer pipe, but since it uses a wired communication network, it is difficult to recover in case of a failure in the installation and communication network. .
  • the present invention can provide a system and method for monitoring a manhole internal condition using a manhole cover including a sensor device, a communication device, and an antenna, and wirelessly transmitting the monitoring result, thereby confirming the manhole internal condition without a user's visit. have.
  • the status of the underground facilities according to the LPWA network on the top of the manhole cover Includes a space in which an antenna for transmitting the sensor information of the sensor device for sensing to the monitoring server can be disposed, the lower end of the manhole cover, a buried type that can collect sensor information from the sensor device in accordance with wired or wireless communication
  • the communication device may be arranged, and a hole through which the antenna and the communication device may be connected may be provided at the bottom of the space.
  • the space may be disposed in an intaglio shape at the center of the top of the manhole cover or the top side.
  • the space may be closed by a protective plate for blocking the outside of the manhole cover.
  • the hole penetrates through the manhole cover to transmit sensor information collected by a sensor device sensing the state of the underground facility to the antenna according to wired or wireless communication. It can be configured as a cavity structure.
  • the grating plate structure may include a cross grating plate structure having a plurality of gratings intersecting each other, or a convex grating plate having a grating plate structure that is sealed. It may include a structure.
  • the communication device may be mounted in a DCU (Data Concentrator Unit) case corresponding to the size of the grid and to block physical influences generated outside the manhole cover.
  • DCU Data Concentrator Unit
  • the DCU case may be sealed at the lower end of the manhole cover, and may be mounted open to manage a communication device mounted in the DCU case.
  • the antenna is a LPWA dedicated antenna having a multilayer pattern layer structure, and may transmit a communication signal to a base station of a low power broadband communication network in the form of omni-directional radiation.
  • an inclination sensor capable of measuring the inclination of the manhole cover may be disposed at a lower end of the manhole cover, and the inclination sensor may be part or all of the manhole cover. It may be determined whether the deviation from the.
  • the buried communication device, the sensor device 130 for sensing the state of the underground facilities through a wireless communication method, including RF communication, Bluetooth (BLE) or ZigBee (ZigBee). ) Can be communicated with.
  • RF communication including RF communication, Bluetooth (BLE) or ZigBee (ZigBee).
  • the space disposed on the upper portion of the manhole cover may be filled with a buffer for protecting the antenna from a force applied from the outside of the manhole cover or a material introduced from the outside.
  • the status of the underground facilities according to the LPWA network Receiving sensor information on the underground facility from at least one sensing device, determining the status of the underground facility based on the received sensor information, and transmitting the determined result to a monitoring server.
  • the manhole cover may include a space in which an antenna for transmitting sensor information of a sensor device sensing a state of an underground facility according to the LPWA network to a monitoring server may be disposed on an upper portion of the manhole cover.
  • the bottom of the collects sensor information according to wired communication or wireless communication from the sensor device
  • the communication device of the buried type which can be arranged, the hole in the bottom of the blank space that can be connected to the antenna and the communication apparatus can be provided.
  • the status of underground facilities according to the LPWA network At least one sensor device for sensing, receiving sensor information on the underground facility from the sensor device, determines the state of the underground facility based on the received sensor information, and transmits the determined result to the monitoring server And a monitoring server that receives the determined result from the manhole cover and the manhole cover, and outputs data corresponding to the received result, wherein the manhole cover is located on the top of the manhole cover according to the LPWA network.
  • LPWAN low-power wide-area network
  • the antenna for transmitting the sensor information of the sensor device for sensing the sensor to the monitoring server is arranged Including a space that can be, the bottom of the manhole cover, a buried communication device capable of collecting sensor information from the sensor device in accordance with wired or wireless communication may be disposed, the antenna at the bottom of the empty space And a hole through which the communication device can be provided.
  • the manhole cover may be monitored to monitor the internal state of the manhole, and the monitoring result may be wirelessly transmitted to the server, thereby checking the internal state of the manhole without a user's visit.
  • FIG. 1 is a diagram illustrating a system for monitoring a state of underground facilities using a manhole cover based on a low-power wide-area network (LPWAN) according to an embodiment of the present invention.
  • LPWAN low-power wide-area network
  • FIG. 2 is a view for explaining the configuration of a manhole cover according to an embodiment of the present invention.
  • FIG 3 is a view for explaining the top structure and the bottom structure of the manhole cover according to an embodiment of the present invention.
  • FIG. 4 is a view showing a manhole cover according to an embodiment of the present invention.
  • FIG. 5 is a view showing a manhole cover according to an embodiment of the present invention.
  • FIG. 6 is a view for explaining the form of radiation in the manhole cover according to an embodiment of the present invention.
  • FIG. 7 is a view for explaining the process of monitoring the underground facilities in the manhole cover according to an embodiment of the present invention.
  • FIG. 8 is a view showing the results of monitoring the underground facilities using a manhole cover according to an embodiment of the present invention.
  • FIG. 9 is a view for explaining a process of detecting whether the manhole cover is separated from the manhole according to an embodiment of the present invention.
  • FIG. 10 is a view showing a manhole worker monitoring process according to an embodiment of the present invention.
  • FIG. 11 is a flowchart illustrating a method for monitoring underground facilities using a manhole cover according to an embodiment of the present invention.
  • FIG. 1 is a diagram illustrating a system for monitoring a state of underground facilities using a manhole cover based on a low-power wide-area network (LPWAN) according to an embodiment of the present invention.
  • LPWAN low-power wide-area network
  • the low-power broadband communication network-based manhole cover 100 monitors sensor information of a sensor device 130 that senses a state of underground facilities according to the LPWA network 114 at the top (or LPWA base station 140). It may include a space in which the antenna 110 for transmitting to. At the bottom of the manhole cover 100, a buried communication device 120 capable of collecting sensor information from the sensor device according to wired communication or wireless communication may be disposed.
  • the antenna 110 which may be mounted on the manhole cover 100, may communicate with a monitoring server (or LPWA base station 140) through a low power broadband communication network (LPWAN) 114.
  • LPWAN low power broadband communication network
  • Embedded communication device 120 that can be mounted on the bottom of the manhole cover 100 according to an embodiment is an underground facility through a wireless communication method 123 including RF communication, Bluetooth (BLE) or ZigBee (ZigBee)
  • the sensor device 130 may sense a state of the communication with the sensor device 130.
  • the communication device 120 and the sensor device 130 may communicate with each other via a low power broadband communication network.
  • FIG. 2 is a view for explaining the configuration of a manhole cover according to an embodiment of the present invention.
  • the manhole cover 210 is an antenna 230 for transmitting the sensor information of the sensor device for sensing the state of the underground facilities according to the LPWA network on the top of the manhole cover to the monitoring server It may include a space 220 can be disposed.
  • the space 220 may be provided in an intaglio form at the top center or top side of the manhole cover 210.
  • the space 220 may be provided in a cylindrical shape, and may be provided in a polygonal shape as needed.
  • a buried communication device 232 may be disposed at a lower end of the manhole cover 210 to collect sensor information according to wired or wireless communication from a sensor device sensing a state of an underground facility according to the LPWA network.
  • At least one hole 240 may be provided at the bottom of the space 220.
  • the antenna 230 and the embedded communication device 232 which may be mounted on the manhole cover 210, may be connected through the hole 240.
  • the manhole cover 210 fixes the antenna 230 disposed in the space 220 to the inside of the space 220, and fixes the antenna 230 from a force applied from the outside of the manhole cover 210 or material introduced from the outside. It can be filled with a buffer to protect it.
  • the cushioning material may be made using rubber, plastic or metal.
  • a protective plate for covering one open side of the space 220 may be provided.
  • the open upper portion of the space 220 may be configured in the shape of a groove so that the protective plate does not leave the outside of the manhole cover.
  • the open upper portion of the space 220 may be configured such that the protection plate may have the same height as the outer surface of the manhole cover and cover the open upper portion of the space 220.
  • the hole 240 provided at the bottom of the space 220 may have a cavity structure penetrating the manhole cover to connect the top and bottom of the manhole cover.
  • a wire may pass through the hole 240, and may include a plurality of holes to enable wireless or wired communication between the top and bottom of the manhole cover 210.
  • An antenna 230 may be disposed inside the space 220 of the manhole cover 210.
  • the antenna 230 disposed in the space 220 may exchange data with a monitoring server (or LPWA base station) located outside the manhole.
  • at least one communication device 232 may be disposed at a lower end of the manhole cover 210.
  • the antenna 230 disposed in the space 220 may communicate with the monitoring server using a low-power wide-area (LPWA) network, which is a low power broadband communication technology.
  • LPWA low-power wide-area
  • a sensor device or a communication device 232 may be disposed at the lower end of the manhole cover 210.
  • the sensor information about the underground facilities can be received from at least one sensor device that monitors the condition of the underground facilities existing below the ground surface.
  • the sensor device for monitoring the condition of the underground facility may include at least one of a methane gas measurement sensor, a temperature sensor and a water level measurement sensor.
  • FIG 3 is a view for explaining the top structure and the bottom structure of the manhole cover according to an embodiment of the present invention.
  • FIG 3 illustrates a side view of the manhole cover 300, a plan view 301 viewed from the top of the manhole cover, and a bottom view 302 viewed from the bottom of the manhole cover.
  • the manhole cover 300 may include an intaglio-shaped space having an upper portion open at the top thereof.
  • the antenna 310 may be disposed in such a recessed space.
  • the antenna 310 may transmit sensor information of the sensor device 130 that senses the state of the underground facility according to the LPWA network 114 to the monitoring server (or the LPWA base station 140).
  • An engraved space in which the antenna 310 may be disposed may be provided at the top center or top side of the manhole cover 300 according to the support load, durability, and construction environment of the manhole cover 300.
  • at least one hole 320 may be provided at a lower end of a space where the antenna 310 may be disposed.
  • the antenna 310 that may be disposed on the top of the manhole cover 300 and the buried communication device that may be disposed on the bottom of the manhole cover 300 may be connected by wire or wireless communication through the hole 320.
  • the top or bottom of the manhole cover 300 may be composed of a grating plate structure 330 composed of a plurality of gratings.
  • the grid plate structure 330 may improve convenience of work and durability of the manhole cover 300.
  • a buried communication device capable of collecting sensor information from the sensor device according to wired or wireless communication may be disposed.
  • a buried communication device corresponds to the grid size of any one of the plurality of grids constituting the lower end of the manhole cover 300, and the DCU (Data) for blocking the physical influence generated outside the manhole cover 300 Concentrator Unit) can be mounted in the case.
  • a communication device including a DCU device, an LPWA communication module, a battery for supplying power, and the like may be disposed.
  • the communication device disposed in the DCU case may be used to manage sensing data collection information and manhole state information.
  • the DCU case may be completely sealed with the manhole cover 300.
  • the DCU case can be mounted open to check the status of the DCU device and the LPWA communication module and to replace the battery or parts.
  • there is an environmental sensor that can check the condition of the manhole cover. Can be arranged.
  • the environmental sensor may check the temperature of the manhole cover, the humidity around the manhole cover, the temperature or humidity inside the DCU case.
  • FIG. 4 is a view showing a manhole cover according to an embodiment of the present invention.
  • FIG. 4 is a view illustrating a commercially available manhole cover, a manhole cover 400 including an engraved space 401 having an upper portion open at an upper end thereof, and a manhole cover 410 having an antenna 411 disposed in an engraved space. ) And a manhole cover 420 having a protective plate 421 for closing the engraved space.
  • the engraved space 401 provided at the top center of the manhole cover may be used as a space into which the LPWA cavity antenna 411 is inserted.
  • the LPWA cavity antenna 411 is disposed in the engraved space 401.
  • the manhole cover may include a protective plate 421 to protect the antenna 411 disposed in the engraved space 401 from external force or foreign matter.
  • FIG. 5 is a view showing a manhole cover according to an embodiment of the present invention.
  • the manhole cover 510 may include a manhole cover 510, a communication device 520, and a protective plate 530, as shown in FIG. 5.
  • the manhole cover 510 is a lid covering the manhole, and as shown in FIG. 5, the manhole cover 510 may include an intaglio-shaped space 511 having an upper portion open at the top center thereof.
  • the manhole cover 510 may be an LPWA communication-only manhole cover, and may include an LPWA communication antenna in an engraved space 511 provided at the top center or top side of the manhole cover 510.
  • the antenna 520 may be configured as an LPWAN communication module, and may be disposed in a space provided on one side of the manhole cover 510.
  • the antenna 520 may be an LPWA cavity antenna capable of communicating with a base station located outside in the LPWA communication method.
  • At least one sensor may be further included in the space 511 in which the antenna 520 is disposed.
  • a tilt sensor may be included to measure a tilt between the manhole cover and the manhole.
  • the protection plate 530 may serve to fix and protect the antenna 520 disposed in the space provided on one side of the manhole cover 510 to the manhole cover 510.
  • the protective plate 530 is a protective cover protecting the LPWA cavity antenna 520, and a space 531 may be provided inside the protective plate 530 to include the LPWA cavity antenna 520.
  • the overall shape of the protective plate 530 may be configured in a form corresponding to the space provided on one side of the manhole cover 510. Since the manhole cover 510 of FIG. 5 has a cylindrical space at the top, the overall shape of the protective plate 530 may also be configured in a cylindrical shape. When the shape of the space provided on one side of the manhole cover 510 is a square pillar shape, the overall shape of the protective plate 530 may also be configured in a square pillar shape corresponding thereto.
  • FIG. 6 is a view for explaining the form of radiation in the manhole cover according to an embodiment of the present invention.
  • the manhole cover may include an antenna based on a low power broadband communication network.
  • the antenna may exchange data with a low power broadband communication base station (or monitoring server) using a low power broadband communication method.
  • the antenna 600 is a LPWA dedicated antenna having a multilayer pattern layer structure, and may transmit a communication signal to a base station 610 of a low power broadband communication network in the form of omni-directional radiation.
  • An antenna that may be disposed in the manhole cover includes a dipole antenna, a monopole antenna, a helical antenna, and the like, in which a radiation pattern is constant in all directions on a single plane.
  • FIG. 7 is a view for explaining the process of monitoring the underground facilities in the manhole cover according to an embodiment of the present invention.
  • the manhole cover 710 measures depth of sewage, sewage, soil, excreta, foreign substances, etc. using at least one sensor 720, or monitors the water level inside the manhole, gas leakage, and the like. Can be used.
  • At least one sensor located inside the manhole may be connected to the manhole cover 710 by wire or wireless communication.
  • the at least one sensor may be installed in an underground facility located below the ground surface and may communicate with the manhole cover using wireless communication. Sensors using wireless communication can be installed in locations that are difficult for users to monitor, and can continuously monitor the condition of underground facilities.
  • the manhole cover 710 may receive state information of the underground facility from at least one sensor for monitoring the underground facility.
  • the state information obtained using at least one wired or wireless sensor may be received through communication equipment mounted on the manhole cover 710.
  • FIG. 8 is a view showing the results of monitoring the underground facilities using a manhole cover according to an embodiment of the present invention.
  • Monitoring server may receive the state information of the underground facilities from a plurality of manhole cover at regular intervals, through which it is possible to continuously monitor the state inside the manhole where the manhole is located.
  • the monitoring system 800 of FIG. 8 illustrates a result of periodically monitoring the amount of sewage of a manhole located in a specific area. For example, it is possible to periodically receive status information on the current amount of sewage in each manhole from the manhole covers 801 to 808 located in Imae-dong, Bundang-gu, Seongnam-si. According to the information 808 received from the eighth manhole cover, it can be confirmed that the amount of sewage inside the eighth manhole (Imae-dong 99 Manga 2 manhole) is in a dangerous state as 70%.
  • the monitoring server may generate a report including the location of each manhole cover and a measurement time, based on the state information of the underground facilities received from the plurality of manhole covers, as shown in FIG. 8. .
  • FIG. 9 is a view for explaining a process of detecting whether the manhole cover is separated from the manhole according to an embodiment of the present invention.
  • the manhole cover may include an inclination sensor capable of measuring an inclination of the manhole cover 910.
  • the manhole cover 910 may include a three-axis sensor 920.
  • the 3-axis sensor 920 may determine whether the manhole cover 910 is opened by measuring the inclination of the manhole cover 910.
  • the three-axis sensor 920 may measure the changed inclination of the manhole cover 910.
  • the manhole cover 910 may transmit the inclination measured by the three-axis sensor 920 to the monitoring server.
  • the monitoring server may include a database in which information on a work schedule for each manhole is stored.
  • the monitoring server may determine whether there is a scheduled work schedule in relation to the manhole cover in which the tilt change is detected, and detect whether the manhole cover in which the tilt change has occurred is stolen. For example, when there is no scheduled work schedule with respect to the manhole cover in which the tilt change is detected, it may be determined that the theft of the manhole cover has occurred. In this case, the monitoring server may output a warning alarm notifying the manager that the theft of the manhole cover 910 is occurring, and may provide a location of the manhole cover 910.
  • the monitoring server provides the user with a report 930 displaying the manhole cover 910 determined to have been stolen in a different color from the other manhole covers, so that the user can easily identify the manhole cover 910 where theft has occurred. Can be. For example, it may be confirmed that the inclination of the eighth manhole 938 is changed among the eight manhole covers 931 to 938.
  • the work schedule history 940 stored in the database of the monitoring server may be checked to determine whether the change in the slope of the manhole cover is a change in the slope according to the scheduled work.
  • FIG. 10 is a view showing a manhole worker monitoring process according to an embodiment of the present invention.
  • the manhole worker may wear a wearable device 1010 that may be worn on the body as shown in FIG. 10.
  • the wearable device 1010 may measure state information such as a heart rate and a body temperature of an operator, and transmit the measured information through a wireless communication network.
  • the manhole cover may transmit the state information of the worker sent by the wearable device 1010 to the outside using the LPWAN communication module provided in the manhole cover.
  • the state information of the worker transmitted through the manhole cover may be transmitted to the monitoring server through the base station 1020.
  • the manhole cover may transmit the state information of the worker measured by the wearable device 1010 to the monitoring server.
  • the monitoring server may provide the manager with a report 1030 including the names and status information of the workers, so that the manager can check the status of the workers in real time.
  • the report 1030 may be displayed on the mobile terminal possessed by the worker, as shown in FIG. 10. If an abnormality occurs in the body of the worker during the operation, the rescue may be requested by clicking the 119 report or cooperation request icon of the report 1030 displayed on the mobile terminal.
  • FIG. 11 is a flowchart illustrating a method for monitoring underground facilities using a manhole cover according to an embodiment of the present invention.
  • sensor information on the underground facility may be received from at least one sensor device that senses the status of the underground facility according to the LPWA network.
  • the sensor device may be installed in the underground facility to periodically acquire status information of the underground facility.
  • the obtained state information may be transmitted to a communication device disposed in the manhole cover using a wireless communication or a wired communication scheme.
  • the communication device may be disposed at the bottom of the manhole cover.
  • the communication device disposed in the manhole cover may serve to receive radio waves generated in the manhole and transmit the radio waves to the outside of the manhole cover.
  • the communication device disposed at the bottom of the manhole cover may communicate with the antenna disposed at the top of the manhole cover through at least one hole passing through the manhole cover.
  • the at least one hole provided in the manhole cover is configured in the form of a hole penetrating the manhole cover so that the antenna disposed at the top of the manhole cover and the communication device disposed at the bottom may be connected in a wired communication manner.
  • the at least one hole provided in the manhole cover may be configured in such a manner that a radio wave transmissive material fills the at least one hole.
  • the antenna disposed on the upper portion of the manhole cover and the communication device disposed on the lower portion may be formed by a wireless communication method. Can be connected.
  • the state of the underground facility may be determined based on the received state information of the underground facility.
  • the operation of determining the state of the underground facility in the manhole cover may be performed by whether or not the state of the underground facility exceeds a threshold preset by the administrator. For example, when monitoring the water level of the sewer pipe through the manhole cover, it is possible to receive the water level information of the sewer pipe from the water level measurement sensor installed inside the manhole. The received water level information of the sewer pipe may be used to determine whether or not to exceed the value preset by the administrator.
  • the manhole cover may transmit the determined result to an external monitoring server through an antenna mounted on the manhole cover.
  • An antenna disposed on the manhole cover may communicate with the monitoring server based on the LPWA network.
  • the monitoring server that receives the status information on the underground facility through the antenna disposed on the manhole cover may output the received information to the manager.
  • the method according to various embodiments may be embodied in the form of program instructions that may be executed by various computer means and recorded on a computer readable medium.
  • the computer readable medium may include program instructions, data files, data structures, etc. alone or in combination.
  • the program instructions recorded on the media may be those specially designed and constructed for the purposes of the embodiments, or they may be of the kind well-known and available to those having skill in the computer software arts.
  • Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks.
  • Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.
  • the hardware device described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

Abstract

A manhole cover for monitoring the state of an underground facility on the basis of a low-power wide-area network (LPWAN), according to one embodiment of the present invention, comprises: a space, formed in the upper end of the manhole cover, within which an antenna for transmitting, to a monitoring server, sensor information of a sensor device sensing the state of the underground facility via the LPWA network may be arranged; a hole, formed in the lower end of the manhole cover, in which a buried communication device capable of collecting the sensor information from the sensor device via a wired communication or a wireless communication may be arranged, and through which an antenna may be connected to a communication device at the lower end of the space.

Description

LPWA(LOW-POWER WIDE-AREA) 네트워크 기반의 지하시설물 상태 모니터링을 위한 맨홀 커버Manhole cover for monitoring the status of underground facilities based on low-power wide-area (LPWA) networks
본 발명은 LPWAN(Low-Power Wide-Area Network) 기반의 지하시설물 상태 모니터링을 위한 맨홀 커버에 관한 것이다.The present invention relates to a manhole cover for monitoring the status of underground facilities based on low-power wide-area network (LPWAN).
일반적인 맨홀 관리 방법은 작업자가 주기적으로 맨홀을 방문하여 내부를 직접 점검하는 것이므로 유지 비용이 높고, 작업자가 맨홀 내부에서 작업 중 사고를 당할 위험이 있다.The general manhole management method is that the worker visits the manhole periodically and checks the inside directly, and thus the maintenance cost is high, and there is a risk that the worker has an accident while working inside the manhole.
센서를 이용하여 맨홀 내부 상태를 확인하는 방법이 사용되기도 하지만, 맨홀 커버는 재질상 전기/전파를 차단하므로 맨홀 내부에 설치한 센서의 측정 결과를 수집하기 위해서는 작업자가 맨홀 커버를 열고 전파 차단을 해제한 후 센서 측정 결과를 수집해야 한다. 이 경우 인사 사고 위험은 줄일 수 있지만 유지 비용이 여전히 높다는 문제점이 있다.Although the method of checking the inside of the manhole using a sensor is often used, the manhole cover cuts off electric and radio waves due to its material, so in order to collect the measurement result of the sensor installed inside the manhole, the operator opens the manhole cover and releases the radio wave blocking. After that, sensor measurement results should be collected. In this case, the risk of personnel accidents can be reduced, but the maintenance cost is still high.
또한, 종래의 스마트 빌딩에서 이용되는 M2M/IoT 기반 하수도 맨홀 모니터링 시스템은 하수관 속을 흐르는 물의 양의 변화를 모니터링할 수 있으나, 유선 통신망을 사용하고 있으므로, 설치 및 통신망에 장애 발생시 복구가 어려운 실정이다. In addition, the M2M / IoT-based sewer manhole monitoring system used in a conventional smart building can monitor the change in the amount of water flowing in the sewer pipe, but since it uses a wired communication network, it is difficult to recover in case of a failure in the installation and communication network. .
따라서, 무선으로 맨홀의 상태를 모니터링할 수 있는 방법이 요구되고 있다.Therefore, there is a need for a method capable of wirelessly monitoring the state of the manhole.
본 발명은 센서 장치, 통신 장치 및 안테나를 포함하는 맨홀 커버를 이용하여 맨홀 내부 상태를 모니터링하고, 모니터링 결과를 무선으로 전송함으로써, 사용자의 방문 없이도 맨홀 내부 상태를 확인하는 시스템 및 방법을 제공할 수 있다.The present invention can provide a system and method for monitoring a manhole internal condition using a manhole cover including a sensor device, a communication device, and an antenna, and wirelessly transmitting the monitoring result, thereby confirming the manhole internal condition without a user's visit. have.
본 발명의 일실시예에 따른 저전력 광대역 통신 네트워크(LPWAN: Low-Power Wide-Area Network) 기반의 지하시설물 상태를 모니터링 하기 위한 맨홀 커버에 있어서, 맨홀 커버의 상단에 LPWA 네트워크에 따라 지하시설물 상태를 센싱하는 센서 장치의 센서 정보를 모니터링 서버에 송신하기 위한 안테나가 배치될 수 있는 공간을 포함하고, 맨홀 커버의 하단은, 센서 장치로부터 유선 통신 또는 무선 통신에 따라 센서 정보를 수집할 수 있는 매립형의 통신 장치가 배치될 수 있고, 공간의 하단에 안테나와 통신 장치가 연결될 수 있는 홀이 구비될 수 있다.In the manhole cover for monitoring the status of underground facilities based on low-power wide-area network (LPWAN) according to an embodiment of the present invention, the status of the underground facilities according to the LPWA network on the top of the manhole cover Includes a space in which an antenna for transmitting the sensor information of the sensor device for sensing to the monitoring server can be disposed, the lower end of the manhole cover, a buried type that can collect sensor information from the sensor device in accordance with wired or wireless communication The communication device may be arranged, and a hole through which the antenna and the communication device may be connected may be provided at the bottom of the space.
본 발명의 일실시예에 따른 맨홀 커버에 있어서, 공간은, 상기 맨홀 커버의 상단 중앙 또는 상단 측면에 음각 형태로 배치될 수 있다.In the manhole cover according to an embodiment of the present invention, the space may be disposed in an intaglio shape at the center of the top of the manhole cover or the top side.
본 발명의 일실시예에 따른 맨홀 커버에 있어서, 공간은, 상기 맨홀 커버의 외부와 차단하기 위한 보호판에 의해 폐쇄될 수 있다.In the manhole cover according to an embodiment of the present invention, the space may be closed by a protective plate for blocking the outside of the manhole cover.
본 발명의 일실시예에 따른 맨홀 커버에 있어서, 홀은, 상기 지하시설물의 상태를 센싱하는 센서 장치가 수집한 센서 정보를 유선 통신 또는 무선 통신에 따라 상기 안테나로 전달하기 위해 상기 맨홀 커버를 관통하는 캐비티 구조로 구성될 수 있다.In the manhole cover according to an embodiment of the present invention, the hole penetrates through the manhole cover to transmit sensor information collected by a sensor device sensing the state of the underground facility to the antenna according to wired or wireless communication. It can be configured as a cavity structure.
본 발명의 일실시예에 따른 맨홀 커버에 있어서, 맨홀 구조의 상단 또는 하단은, 복수의 격자들로 구성된 격자 플레이트 구조로 구성되고, 통신 장치는, 상기 맨홀 구조의 하단에 구성된 상기 복수의 격자들 중 어느 하나의 격자에 매립될 수 있다.In the manhole cover according to an embodiment of the present invention, the upper or lower end of the manhole structure, the lattice plate structure consisting of a plurality of gratings, the communication device, the plurality of gratings formed on the lower end of the manhole structure It may be embedded in any one of the gratings.
본 발명의 일실시예에 따른 맨홀 커버에 있어서, 격자 플레이트 구조는, 복수의 격자가 서로 교차하는 형태로 구성되는 교차형 격자 플레이트 구조나, 상기 격자 플레이트 구조가 밀폐되는 형태로 구성되는 볼록형 격자 플레이트 구조를 포함할 수 있다.In the manhole cover according to the embodiment of the present invention, the grating plate structure may include a cross grating plate structure having a plurality of gratings intersecting each other, or a convex grating plate having a grating plate structure that is sealed. It may include a structure.
본 발명의 일실시예에 따른 맨홀 커버에 있어서, 통신 장치는, 격자의 사이즈에 대응하고, 맨홀 커버의 외부에서 발생되는 물리적 영향을 차단하기 위한 DCU(Data Concentrator Unit) 케이스에 탑재될 수 있다.In the manhole cover according to an embodiment of the present invention, the communication device may be mounted in a DCU (Data Concentrator Unit) case corresponding to the size of the grid and to block physical influences generated outside the manhole cover.
본 발명의 일실시예에 따른 맨홀 커버에 있어서, DCU 케이스는, 상기 맨홀 커버의 하단에 밀봉될 수 있으며, 상기 DCU 케이스 내에 탑재된 통신 장치를 관리하기를 위해 개방형으로 탑재될 수 있다.In the manhole cover according to an embodiment of the present invention, the DCU case may be sealed at the lower end of the manhole cover, and may be mounted open to manage a communication device mounted in the DCU case.
본 발명의 일실시예에 따른 맨홀 커버에 있어서, 안테나는, 다층 패턴 레이어 구조의 LPWA 전용 안테나로써, 통신 신호를 전방향성 방사 형태로 저전력 광대역 통신 네트워크의 기지국에 송신할 수 있다.In the manhole cover according to an embodiment of the present invention, the antenna is a LPWA dedicated antenna having a multilayer pattern layer structure, and may transmit a communication signal to a base station of a low power broadband communication network in the form of omni-directional radiation.
본 발명의 일실시예에 따른 맨홀 커버에 있어서, 맨홀 커버의 기울기를 측정할 수 있는 기울기 센서가 상기 맨홀 커버의 하단에 배치될 수 있고, 상기 기울기 센서는, 상기 맨홀 커버의 일부 또는 전부가 맨홀로부터 이탈되는지 여부를 판단할 수 있다.In the manhole cover according to an embodiment of the present invention, an inclination sensor capable of measuring the inclination of the manhole cover may be disposed at a lower end of the manhole cover, and the inclination sensor may be part or all of the manhole cover. It may be determined whether the deviation from the.
본 발명의 일실시예에 따른 맨홀 커버에 있어서, 매립형의 통신 장치는, RF 통신, 블루투스(BLE) 또는 지그비(ZigBee)를 포함하는 무선 통신 방식을 통해 지하시설물의 상태를 센싱하는 센서 장치(130)와 통신할 수 있다.In the manhole cover according to an embodiment of the present invention, the buried communication device, the sensor device 130 for sensing the state of the underground facilities through a wireless communication method, including RF communication, Bluetooth (BLE) or ZigBee (ZigBee). ) Can be communicated with.
본 발명의 일실시예에 따른 맨홀 커버에 있어서, 맨홀 커버의 상단에 배치된 공간은, 상기 맨홀 커버의 외부로부터 가해진 힘 또는 외부로부터 유입되는 물질로부터 상기 안테나를 보호하기 위한 완충재로 채워질 수 있다.In the manhole cover according to an embodiment of the present invention, the space disposed on the upper portion of the manhole cover may be filled with a buffer for protecting the antenna from a force applied from the outside of the manhole cover or a material introduced from the outside.
본 발명의 일실시예에 따른 저전력 광대역 통신 네트워크(LPWAN: Low-Power Wide-Area Network) 기반의 맨홀 커버를 이용하여 지하시설물의 상태를 모니터링하는 방법에 있어서, 상기 LPWA 네트워크에 따라 지하시설물 상태를 센싱하는 적어도 하나의 센서 장치로부터 상기 지하시설물에 대한 센서 정보를 수신하는 단계, 상기 수신된 센서 정보를 기초로 상기 지하시설물 상태를 판단하는 단계 및 상기 판단된 결과를 모니터링 서버로 송신하는 단계를 포함하며, 상기 맨홀 커버는, 상기 맨홀 커버의 상단에 상기 LPWA 네트워크에 따라 지하시설물 상태를 센싱하는 센서 장치의 센서 정보를 모니터링 서버에 송신하기 위한 안테나가 배치될 수 있는 공간을 포함하고, 상기 맨홀 커버의 하단은, 상기 센서 장치로부터 유선 통신 또는 무선 통신에 따라 센서 정보를 수집할 수 있는 매립형의 통신 장치가 배치될 수 있고, 상기 빈 공간의 하단에 상기 안테나와 통신 장치가 연결될 수 있는 홀이 구비될 수 있다.In a method for monitoring the status of underground facilities using a manhole cover based on low-power wide-area network (LPWAN) according to an embodiment of the present invention, the status of the underground facilities according to the LPWA network Receiving sensor information on the underground facility from at least one sensing device, determining the status of the underground facility based on the received sensor information, and transmitting the determined result to a monitoring server. The manhole cover may include a space in which an antenna for transmitting sensor information of a sensor device sensing a state of an underground facility according to the LPWA network to a monitoring server may be disposed on an upper portion of the manhole cover. The bottom of the, collects sensor information according to wired communication or wireless communication from the sensor device And the communication device of the buried type which can be arranged, the hole in the bottom of the blank space that can be connected to the antenna and the communication apparatus can be provided.
본 발명의 일실시예에 따른 저전력 광대역 통신 네트워크(LPWAN: Low-Power Wide-Area Network) 기반의 맨홀 커버를 이용하여 지하시설물의 상태를 모니터링하는 시스템에 있어서, 상기 LPWA 네트워크에 따라 지하시설물 상태를 센싱하는 적어도 하나의 센서 장치, 상기 센서 장치로부터 상기 지하시설물에 대한 센서 정보를 수신하고, 상기 수신된 센서 정보를 기초로 상기 지하시설물의 상태를 판단하며, 상기 판단된 결과를 모니터링 서버로 송신하는 맨홀 커버 및 상기 맨홀 커버로부터 상기 판단된 결과를 수신하고, 수신된 결과에 대응되는 데이터를 출력하는 모니터링 서버를 포함하고, 상기 맨홀 커버는, 상기 맨홀 커버의 상단에 상기 LPWA 네트워크에 따라 지하시설물 상태를 센싱하는 센서 장치의 센서 정보를 모니터링 서버에 송신하기 위한 안테나가 배치될 수 있는 공간을 포함하고, 상기 맨홀 커버의 하단은, 상기 센서 장치로부터 유선 통신 또는 무선 통신에 따라 센서 정보를 수집할 수 있는 매립형의 통신 장치가 배치될 수 있고, 상기 빈 공간의 하단에 상기 안테나와 통신 장치가 연결될 수 있는 홀이 구비될 수 있다.In a system for monitoring the status of underground facilities using a manhole cover based on low-power wide-area network (LPWAN) in accordance with an embodiment of the present invention, the status of underground facilities according to the LPWA network At least one sensor device for sensing, receiving sensor information on the underground facility from the sensor device, determines the state of the underground facility based on the received sensor information, and transmits the determined result to the monitoring server And a monitoring server that receives the determined result from the manhole cover and the manhole cover, and outputs data corresponding to the received result, wherein the manhole cover is located on the top of the manhole cover according to the LPWA network. The antenna for transmitting the sensor information of the sensor device for sensing the sensor to the monitoring server is arranged Including a space that can be, the bottom of the manhole cover, a buried communication device capable of collecting sensor information from the sensor device in accordance with wired or wireless communication may be disposed, the antenna at the bottom of the empty space And a hole through which the communication device can be provided.
본 발명의 일실시예에 따르면, 맨홀 커버를 이용하여 맨홀 내부 상태를 모니터링하고, 모니터링 결과를 무선으로 서버에 전송함으로써, 사용자의 방문 없이도 맨홀 내부 상태를 확인할 수 있다.According to an embodiment of the present invention, the manhole cover may be monitored to monitor the internal state of the manhole, and the monitoring result may be wirelessly transmitted to the server, thereby checking the internal state of the manhole without a user's visit.
도 1은 본 발명의 일실시예에 따른 저전력 광대역 통신 네트워크(LPWAN: Low-Power Wide-Area Network) 기반의 맨홀 커버를 이용하여 지하시설물의 상태를 모니터링하는 시스템을 나타내는 도면이다. 1 is a diagram illustrating a system for monitoring a state of underground facilities using a manhole cover based on a low-power wide-area network (LPWAN) according to an embodiment of the present invention.
도 2는 본 발명의 일실시예에 따른 맨홀 커버의 구성을 설명하기 위한 도면이다. 2 is a view for explaining the configuration of a manhole cover according to an embodiment of the present invention.
도 3은 본 발명의 일실시예에 따른 맨홀 커버의 상단 구조 및 하단 구조를 설명하기 위한 도면이다.3 is a view for explaining the top structure and the bottom structure of the manhole cover according to an embodiment of the present invention.
도 4는 본 발명의 일실시예에 따른 맨홀 커버를 나타내는 도면이다.4 is a view showing a manhole cover according to an embodiment of the present invention.
도 5는 본 발명의 일실시예에 따른 맨홀 커버를 나타내는 도면이다.5 is a view showing a manhole cover according to an embodiment of the present invention.
도 6은 본 발명의 일실시예에 따른 맨홀 커버에서 전파를 방사하는 형태를 설명하기 위한 도면이다.6 is a view for explaining the form of radiation in the manhole cover according to an embodiment of the present invention.
도 7은 본 발명의 일실시예에 따른 맨홀 커버에서 지하시설물을 모니터링 하는 과정을 설명하기 위한 도면이다.7 is a view for explaining the process of monitoring the underground facilities in the manhole cover according to an embodiment of the present invention.
도 8은 본 발명의 일 실시예에 따른 맨홀 커버를 이용하여 지하시설물을 모니터링한 결과를 나타낸 도면이다.8 is a view showing the results of monitoring the underground facilities using a manhole cover according to an embodiment of the present invention.
도 9은 본 발명의 일실시예에 따른 맨홀 커버가 맨홀에서 이탈되는지 여부를 감지하는 과정을 설명하기 위한 도면이다. 9 is a view for explaining a process of detecting whether the manhole cover is separated from the manhole according to an embodiment of the present invention.
도 10은 본 발명의 일실시예에 따른 맨홀 작업자 모니터링 과정을 나타낸 도면이다.10 is a view showing a manhole worker monitoring process according to an embodiment of the present invention.
도 11은 본 발명의 일실시예에 따른 맨홀 커버를 이용하여 지하시설물을 모니터링하는 방법을 설명하기 위한 순서도이다.11 is a flowchart illustrating a method for monitoring underground facilities using a manhole cover according to an embodiment of the present invention.
이하, 본 발명의 실시예를 첨부된 도면을 참조하여 상세하게 설명한다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명의 일실시예에 따른 저전력 광대역 통신 네트워크(LPWAN: Low-Power Wide-Area Network) 기반의 맨홀 커버를 이용하여 지하시설물의 상태를 모니터링하는 시스템을 나타내는 도면이다. 1 is a diagram illustrating a system for monitoring a state of underground facilities using a manhole cover based on a low-power wide-area network (LPWAN) according to an embodiment of the present invention.
일실시예에 따른 저전력 광대역 통신 네트워크 기반의 맨홀 커버(100)는 상단에 LPWA 네트워크(114)에 따라 지하시설물 상태를 센싱하는 센서 장치(130)의 센서 정보를 모니터링 서버(또는 LPWA 기지국, 140)에 송신하기 위한 안테나(110)가 배치될 수 있는 공간을 포함할 수 있다. 맨홀 커버(100)의 하단은, 상기 센서 장치로부터 유선 통신 또는 무선 통신에 따라 센서 정보를 수집할 수 있는 매립형의 통신 장치(120)가 배치될 수 있다.The low-power broadband communication network-based manhole cover 100 according to an embodiment monitors sensor information of a sensor device 130 that senses a state of underground facilities according to the LPWA network 114 at the top (or LPWA base station 140). It may include a space in which the antenna 110 for transmitting to. At the bottom of the manhole cover 100, a buried communication device 120 capable of collecting sensor information from the sensor device according to wired communication or wireless communication may be disposed.
일실시예에 따른 맨홀 커버(100)에 장착될 수 있는 안테나(110)는 모니터링 서버(또는 LPWA 기지국, 140)와 저전력 광대역 통신 네트워크(LPWAN, 114)를 통해 통신할 수 있다. The antenna 110, which may be mounted on the manhole cover 100, may communicate with a monitoring server (or LPWA base station 140) through a low power broadband communication network (LPWAN) 114.
일실시예에 따른 맨홀 커버(100)의 하단에 장착될 수 있는 매립형의 통신 장치(120)는 RF 통신, 블루투스(BLE) 또는 지그비(ZigBee)를 포함하는 무선 통신 방식(123)을 통해 지하시설물의 상태를 센싱하는 센서 장치(130)와 통신할 수 있다. 또한, 통신 장치(120)와 센서 장치(130)는 저전력 광대역 통신 네트워크를 통해서도 통신할 수 있다.Embedded communication device 120 that can be mounted on the bottom of the manhole cover 100 according to an embodiment is an underground facility through a wireless communication method 123 including RF communication, Bluetooth (BLE) or ZigBee (ZigBee) The sensor device 130 may sense a state of the communication with the sensor device 130. In addition, the communication device 120 and the sensor device 130 may communicate with each other via a low power broadband communication network.
도 2는 본 발명의 일실시예에 따른 맨홀 커버의 구성을 설명하기 위한 도면이다. 2 is a view for explaining the configuration of a manhole cover according to an embodiment of the present invention.
맨홀 커버(210)의 평면도(201)를 보면, 맨홀 커버(210)는 맨홀 커버의 상단에 LPWA 네트워크에 따라 지하시설물 상태를 센싱하는 센서 장치의 센서 정보를 모니터링 서버에 송신하기 위한 안테나(230)가 배치될 수 있는 공간(220)을 포함할 수 있다. Looking at the plan view 201 of the manhole cover 210, the manhole cover 210 is an antenna 230 for transmitting the sensor information of the sensor device for sensing the state of the underground facilities according to the LPWA network on the top of the manhole cover to the monitoring server It may include a space 220 can be disposed.
맨홀 커버(210)의 측면도(202)를 보면, 공간(220)은 맨홀 커버(210)의 상단 중앙 또는 상단 측면에 음각 형태로 구비될 수 있다. 공간(220)은 원기둥 형태로 구비될 수 있으며, 필요에 따라 다각기둥 형태로 구비될 수 있다.Looking at the side view 202 of the manhole cover 210, the space 220 may be provided in an intaglio form at the top center or top side of the manhole cover 210. The space 220 may be provided in a cylindrical shape, and may be provided in a polygonal shape as needed.
맨홀 커버(210)의 하단에 LPWA 네트워크에 따라 지하시설물 상태를 센싱하는 센서 장치로부터 유선 통신 또는 무선 통신에 따라 센서 정보를 수집할 수 있는 매립형의 통신 장치(232)가 배치될 수 있다.A buried communication device 232 may be disposed at a lower end of the manhole cover 210 to collect sensor information according to wired or wireless communication from a sensor device sensing a state of an underground facility according to the LPWA network.
공간(220)의 하단에 적어도 하나의 홀(240, hole)이 구비될 수 있다. 맨홀 커버(210)에 장착될 수 있는 안테나(230) 및 매립형 통신 장치(232)는 홀(240)을 통해 연결될 수 있다.At least one hole 240 may be provided at the bottom of the space 220. The antenna 230 and the embedded communication device 232, which may be mounted on the manhole cover 210, may be connected through the hole 240.
맨홀 커버(210)는, 공간(220)에 배치된 안테나(230)를 공간(220) 내측에 고정시키고, 맨홀 커버(210)의 외부로부터 가해진 힘 또는 외부로부터 유입되는 물질로부터 안테나(230)를 보호하기 위한 완충재로 채워질 수 있다. 완충재는 고무, 플라스틱 또는 금속을 이용하여 만들어질 수 있다.The manhole cover 210 fixes the antenna 230 disposed in the space 220 to the inside of the space 220, and fixes the antenna 230 from a force applied from the outside of the manhole cover 210 or material introduced from the outside. It can be filled with a buffer to protect it. The cushioning material may be made using rubber, plastic or metal.
일실시예에 따라, 공간(220)의 개방된 일측면을 덮기 위한 보호판이 구비될 수 있다. 공간(220)의 개방된 상부는 보호판이 맨홀 커버의 외측으로 이탈하지 않도록 홈 형태로 구성될 수 있다. 공간(220)의 개방된 상부는 보호판이 맨홀 커버의 외측면과 동일한 높이를 이루며 공간(220)의 개방된 상부를 덮을 수 있도록 구성될 수 있다. According to one embodiment, a protective plate for covering one open side of the space 220 may be provided. The open upper portion of the space 220 may be configured in the shape of a groove so that the protective plate does not leave the outside of the manhole cover. The open upper portion of the space 220 may be configured such that the protection plate may have the same height as the outer surface of the manhole cover and cover the open upper portion of the space 220.
공간(220)의 하단에 구비된 홀(240)은 맨홀 커버의 상단과 하단을 연결하기 위해 맨홀 커버를 관통하는 캐비티 구조로 구성될 수 있다. 홀(240)을 통해 전선 등이 통과할 수 있으며, 복수의 홀을 구비하여 맨홀 커버(210)의 상단과 하단 간에 무선 통신 또는 유선 통신이 가능하도록 구성될 수 있다. The hole 240 provided at the bottom of the space 220 may have a cavity structure penetrating the manhole cover to connect the top and bottom of the manhole cover. A wire may pass through the hole 240, and may include a plurality of holes to enable wireless or wired communication between the top and bottom of the manhole cover 210.
맨홀 커버(210)의 공간(220) 내측에는 안테나(230)가 배치될 수 있다. 공간(220)에 배치된 안테나(230)를 통해 맨홀 외부에 위치한 모니터링 서버(또는 LPWA 기지국)와 데이터를 주고 받을 수 있다. 또한, 맨홀 커버(210)의 하단에 적어도 하나의 통신 장치(232)가 배치될 수 있다. 공간(220)에 배치된 안테나(230)는 저전력 광대역 통신 기술인 LPWA(Low-Power Wide-Area) 네트워크를 이용하여 모니터링 서버와 통신할 수 있다.An antenna 230 may be disposed inside the space 220 of the manhole cover 210. The antenna 230 disposed in the space 220 may exchange data with a monitoring server (or LPWA base station) located outside the manhole. In addition, at least one communication device 232 may be disposed at a lower end of the manhole cover 210. The antenna 230 disposed in the space 220 may communicate with the monitoring server using a low-power wide-area (LPWA) network, which is a low power broadband communication technology.
맨홀 커버(210)의 하단에는 센서 장치 또는 통신 장치(232)가 배치될 수 있다. 예를 들어, 맨홀 커버(210)의 하단에 배치된 통신 장치(232)를 통해, 지표면 아래에 존재하는 지하시설물의 상태를 모니터링하는 적어도 하나의 센서 장치로부터 지하시설물에 대한 센서 정보를 수신할 수 있다. 지하시설물의 상태를 모니터링하는 센서 장치는 메탄 가스 측정 센서, 온도 센서 및 수위 측정 센서 중 적어도 하나를 포함할 수 있다. A sensor device or a communication device 232 may be disposed at the lower end of the manhole cover 210. For example, through the communication device 232 disposed at the bottom of the manhole cover 210, the sensor information about the underground facilities can be received from at least one sensor device that monitors the condition of the underground facilities existing below the ground surface. have. The sensor device for monitoring the condition of the underground facility may include at least one of a methane gas measurement sensor, a temperature sensor and a water level measurement sensor.
도 3은 본 발명의 일실시예에 따른 맨홀 커버의 상단 구조 및 하단 구조를 설명하기 위한 도면이다.3 is a view for explaining the top structure and the bottom structure of the manhole cover according to an embodiment of the present invention.
도 3에는 맨홀 커버(300)의 측면도, 맨홀 커버를 상단에서 바라본 평면도(301) 및 맨홀 커버를 하단에서 바라본 저면도(302)가 개시되어 있다.3 illustrates a side view of the manhole cover 300, a plan view 301 viewed from the top of the manhole cover, and a bottom view 302 viewed from the bottom of the manhole cover.
일실시예에 따른 맨홀 커버(300)는 상단에 상부가 개방된 음각 형태의 공간을 포함할 수 있다. 이러한 음각 형태의 공간에는 안테나(310)가 배치될 수 있다. 안테나(310)는 LPWA 네트워크(114)에 따라 지하시설물 상태를 센싱하는 센서 장치(130)의 센서 정보를 모니터링 서버(또는 LPWA 기지국, 140)에 송신할 수 있다.The manhole cover 300 according to an embodiment may include an intaglio-shaped space having an upper portion open at the top thereof. The antenna 310 may be disposed in such a recessed space. The antenna 310 may transmit sensor information of the sensor device 130 that senses the state of the underground facility according to the LPWA network 114 to the monitoring server (or the LPWA base station 140).
안테나(310)가 배치될 수 있는 음각 형태의 공간은 맨홀 커버(300)의 지지 하중, 내구성 및 구축 환경에 따라 상단 중앙 또는 상단 측면에 구비될 수 있다. 또한, 안테나(310)가 배치될 수 있는 공간의 하단에 적어도 하나의 홀(320, hole)이 구비될 수 있다. 맨홀 커버(300)의 상단에 배치될 수 있는 안테나(310) 및 맨홀 커버(300)의 하단에 배치될 수 있는 매립형 통신 장치는 홀(320)을 통해 유선 통신 또는 무선 통신 방식으로 연결될 수 있다.An engraved space in which the antenna 310 may be disposed may be provided at the top center or top side of the manhole cover 300 according to the support load, durability, and construction environment of the manhole cover 300. In addition, at least one hole 320 may be provided at a lower end of a space where the antenna 310 may be disposed. The antenna 310 that may be disposed on the top of the manhole cover 300 and the buried communication device that may be disposed on the bottom of the manhole cover 300 may be connected by wire or wireless communication through the hole 320.
맨홀 커버(300)의 상단 또는 하단은 복수의 격자들로 구성된 격자형 플레이트 구조(330)로 구성될 수 있다. 격자형 플레이트 구조(330)는 작업의 편의성 및 맨홀 커버(300)의 내구성을 향상시킬 수 있다.The top or bottom of the manhole cover 300 may be composed of a grating plate structure 330 composed of a plurality of gratings. The grid plate structure 330 may improve convenience of work and durability of the manhole cover 300.
맨홀 커버(300)의 하단은, 센서 장치로부터 유선 통신 또는 무선 통신에 따라 센서 정보를 수집할 수 있는 매립형의 통신 장치가 배치될 수 있다. 이와 같은 매립형의 통신 장치는 맨홀 커버(300)의 하단을 구성하는 복수의 격자들 중 어느 하나의 격자 사이즈에 대응하고, 맨홀 커버(300)의 외부에서 발생되는 물리적 영향을 차단하기 위한 DCU(Data Concentrator Unit) 케이스에 탑재될 수 있다. At the bottom of the manhole cover 300, a buried communication device capable of collecting sensor information from the sensor device according to wired or wireless communication may be disposed. Such a buried communication device corresponds to the grid size of any one of the plurality of grids constituting the lower end of the manhole cover 300, and the DCU (Data) for blocking the physical influence generated outside the manhole cover 300 Concentrator Unit) can be mounted in the case.
일실시예에 따른 DCU 케이스에는 DCU 장치, LPWA 통신 모듈 및 전원을 공급하기 위한 배터리 등을 포함하는 통신 장치가 배치될 수 있다. DCU 케이스에 배치된 통신 장치는 센싱 데이터 수집 정보 및 맨홀 상태 정보를 관리하는데 이용될 수 있다. DCU 케이스는 맨홀 커버(300)와 완전 밀봉 될 수 있다. DCU 케이스는 DCU 장치 및 LPWA 통신 모듈의 상태를 점검하고, 배터리나 부품을 교체하기 위해 개방형으로 탑재될 수 있다.일실시예에 따른 DCU 케이스 내부에는 맨홀 커버의 상태를 점검할 수 있는 환경 센서가 배치될 수 있다. 예를 들어, 환경 센서는 맨홀 커버의 온도, 맨홀 커버 주변의 습도, DCU 케이스 내부의 온도 또는 습도를 점검할 수 있다.In a DCU case according to an embodiment, a communication device including a DCU device, an LPWA communication module, a battery for supplying power, and the like may be disposed. The communication device disposed in the DCU case may be used to manage sensing data collection information and manhole state information. The DCU case may be completely sealed with the manhole cover 300. The DCU case can be mounted open to check the status of the DCU device and the LPWA communication module and to replace the battery or parts. According to an embodiment of the present invention, there is an environmental sensor that can check the condition of the manhole cover. Can be arranged. For example, the environmental sensor may check the temperature of the manhole cover, the humidity around the manhole cover, the temperature or humidity inside the DCU case.
도 4는 본 발명의 일실시예에 따른 맨홀 커버를 나타내는 도면이다. 4 is a view showing a manhole cover according to an embodiment of the present invention.
도 4는 상용화된 맨홀 커버를 나타낸 도면으로서, 상단에 상부가 개방된 음각 형태의 공간(401)을 포함하는 맨홀 커버(400), 음각 형태의 공간에 안테나(411)가 배치된 맨홀 커버(410) 및 음각 형태의 공간을 폐쇄시키는 보호판(421)이 구비된 맨홀 커버(420)를 개시하고 있다.4 is a view illustrating a commercially available manhole cover, a manhole cover 400 including an engraved space 401 having an upper portion open at an upper end thereof, and a manhole cover 410 having an antenna 411 disposed in an engraved space. ) And a manhole cover 420 having a protective plate 421 for closing the engraved space.
일실시예에 따른 맨홀 커버의 상단 중앙에 구비된 음각 형태의 공간(401)은, LPWA 캐비티 안테나(411)가 삽입되는 공간으로 이용될 수 있다. 410을 보면, LPWA 캐비티 안테나(411)가 음각 형태의 공간(401)에 배치되어 있다. 맨홀 커버는 음각 형태의 공간(401)에 배치되는 안테나(411)를 외력이나 외부 물질로부터 보호하기 위해 보호판(421)을 구비할 수 있다. The engraved space 401 provided at the top center of the manhole cover according to an embodiment may be used as a space into which the LPWA cavity antenna 411 is inserted. Referring to 410, the LPWA cavity antenna 411 is disposed in the engraved space 401. The manhole cover may include a protective plate 421 to protect the antenna 411 disposed in the engraved space 401 from external force or foreign matter.
도 5는 본 발명의 일실시예에 따른 맨홀 커버를 나타내는 도면이다.5 is a view showing a manhole cover according to an embodiment of the present invention.
일실시예에 따른 맨홀 커버(510)는 도 5에 도시된 바와 같이 맨홀 커버(510), 통신 장치(520) 및 보호판(530)을 포함할 수 있다. The manhole cover 510 according to an embodiment may include a manhole cover 510, a communication device 520, and a protective plate 530, as shown in FIG. 5.
맨홀 커버(510)는 맨홀을 덮는 뚜껑이며, 도 5에 도시된 바와 같이 상단 중앙에 상부가 개방된 음각 형태의 공간(511)을 포함할 수 있다. 예를 들어, 맨홀 커버(510)는 LPWA 통신 전용 맨홀 커버로써, 맨홀 커버(510)의 상단 중앙 또는 상단 측면에 구비된 음각 형태의 공간(511)에 LPWA 통신 방식의 안테나를 포함할 수 있다.The manhole cover 510 is a lid covering the manhole, and as shown in FIG. 5, the manhole cover 510 may include an intaglio-shaped space 511 having an upper portion open at the top center thereof. For example, the manhole cover 510 may be an LPWA communication-only manhole cover, and may include an LPWA communication antenna in an engraved space 511 provided at the top center or top side of the manhole cover 510.
안테나(520)는 LPWAN 통신 모듈로 구성될 수 있으며, 맨홀 커버(510)의 일측면에 구비된 공간에 배치될 수 있다. 예를 들어, 안테나(520)는 LPWA 통신 방식으로 외부에 위치한 기지국과 통신할 수 있는 LPWA 캐비티 안테나 일 수 있다. 안테나(520)가 배치되는 공간(511)에는 적어도 하나의 센서가 더 포함될 수 있다. 예를 들어, 맨홀 커버와 맨홀 간의 기울기를 측정할 수 있는 기울기 센서가 포함될 수 있다. The antenna 520 may be configured as an LPWAN communication module, and may be disposed in a space provided on one side of the manhole cover 510. For example, the antenna 520 may be an LPWA cavity antenna capable of communicating with a base station located outside in the LPWA communication method. At least one sensor may be further included in the space 511 in which the antenna 520 is disposed. For example, a tilt sensor may be included to measure a tilt between the manhole cover and the manhole.
보호판(530)은 맨홀 커버(510)의 일측면에 구비된 공간에 배치된 안테나(520)를 맨홀 커버(510)에 고정시키고, 보호하는 역할을 수행할 수 있다. 보호판(530)은 LPWA 캐비티 안테나(520)를 보호하는 보호커버로써, 보호판(530) 내부에는 LPWA 캐비티 안테나(520)를 포함할 수 있는 공간(531)이 구비될 수 있다. 보호판(530)의 전체적인 형태는 맨홀 커버(510)의 일측면에 구비된 공간에 대응되는 형태로 구성될 수 있다. 도 5의 맨홀 커버(510)는 상단에 원기둥 형태의 공간을 구비하고 있으므로, 보호판(530)의 전체적인 형태 역시 원기둥 형태로 구성될 수 있다. 맨홀 커버(510)의 일측면에 구비된 공간의 형태가 사각기둥 형태인 경우, 보호판(530)의 전체적인 형태 역시 이에 대응하는 사각기둥 형태로 구성될 수 있다.The protection plate 530 may serve to fix and protect the antenna 520 disposed in the space provided on one side of the manhole cover 510 to the manhole cover 510. The protective plate 530 is a protective cover protecting the LPWA cavity antenna 520, and a space 531 may be provided inside the protective plate 530 to include the LPWA cavity antenna 520. The overall shape of the protective plate 530 may be configured in a form corresponding to the space provided on one side of the manhole cover 510. Since the manhole cover 510 of FIG. 5 has a cylindrical space at the top, the overall shape of the protective plate 530 may also be configured in a cylindrical shape. When the shape of the space provided on one side of the manhole cover 510 is a square pillar shape, the overall shape of the protective plate 530 may also be configured in a square pillar shape corresponding thereto.
도 6은 본 발명의 일실시예에 따른 맨홀 커버에서 전파를 방사하는 형태를 설명하기 위한 도면이다.6 is a view for explaining the form of radiation in the manhole cover according to an embodiment of the present invention.
일실시예에 따른 맨홀 커버는 저전력 광대역 통신 네트워크 기반의 안테나를 포함할 수 있다. 안테나는 저전력 광대역 통신 기지국(또는 모니터링 서버)과 저전력 광대역 통신 방식을 이용하여 데이터를 주고 받을 수 있다. 안테나(600)는, 다층 패턴 레이어 구조의 LPWA 전용 안테나로써, 통신 신호를 전방향성 방사 형태로 저전력 광대역 통신 네트워크의 기지국(610)에 송신할 수 있다.The manhole cover according to an embodiment may include an antenna based on a low power broadband communication network. The antenna may exchange data with a low power broadband communication base station (or monitoring server) using a low power broadband communication method. The antenna 600 is a LPWA dedicated antenna having a multilayer pattern layer structure, and may transmit a communication signal to a base station 610 of a low power broadband communication network in the form of omni-directional radiation.
일실시예에 따른 맨홀 커버에 배치될 수 있는 안테나는, 단일 평면 상에서 방사패턴이 전방향으로 일정한 안테나인 다이폴(Dipole) 안테나, 모노폴(Monopole) 안테나 또는 헬리컬(Helical) 안테나 등이 있다. An antenna that may be disposed in the manhole cover according to an embodiment includes a dipole antenna, a monopole antenna, a helical antenna, and the like, in which a radiation pattern is constant in all directions on a single plane.
도 7은 본 발명의 일실시예에 따른 맨홀 커버에서 지하시설물을 모니터링 하는 과정을 설명하기 위한 도면이다.7 is a view for explaining the process of monitoring the underground facilities in the manhole cover according to an embodiment of the present invention.
맨홀 커버(710)는 도 7에 도시된 바와 같이 적어도 하나의 센서(720)를 이용하여 하수, 오수, 흙, 배설물, 이물질 등의 심도를 측정하거나 맨홀 내부의 수위, 가스 누출 여부 등을 모니터링하는데 이용될 수 있다. As shown in FIG. 7, the manhole cover 710 measures depth of sewage, sewage, soil, excreta, foreign substances, etc. using at least one sensor 720, or monitors the water level inside the manhole, gas leakage, and the like. Can be used.
일실시예에 따르면, 맨홀 내부에 위치하는 적어도 하나의 센서는 맨홀 커버(710)와 유선 통신 또는 무선 통신 방식으로 연결될 수 있다. 예를 들어, 적어도 하나의 센서는 지표면 아래에 위치한 지하시설물에 설치될 수 있으며, 무선 통신을 이용하여 맨홀 커버와 통신할 수 있다. 무선 통신을 이용한 센서는 사용자가 모니터링 하기 어려운 위치에 설치될 수 있으며, 지하시설물의 상태를 지속적으로 모니터링 할 수 있다. According to one embodiment, at least one sensor located inside the manhole may be connected to the manhole cover 710 by wire or wireless communication. For example, the at least one sensor may be installed in an underground facility located below the ground surface and may communicate with the manhole cover using wireless communication. Sensors using wireless communication can be installed in locations that are difficult for users to monitor, and can continuously monitor the condition of underground facilities.
일실시예에 따른 맨홀 커버(710)는 지하시설물을 모니터링하는 적어도 하나의 센서로부터 지하시설물의 상태 정보를 수신할 수 있다. 적어도 하나의 유선 또는 무선 센서를 이용하여 획득한 상태 정보는 맨홀 커버(710)에 실장된 통신 장비를 통해 수신될 수 있다.The manhole cover 710 according to an embodiment may receive state information of the underground facility from at least one sensor for monitoring the underground facility. The state information obtained using at least one wired or wireless sensor may be received through communication equipment mounted on the manhole cover 710.
도 8은 본 발명의 일 실시예에 따른 맨홀 커버를 이용하여 지하시설물을 모니터링한 결과를 나타낸 도면이다.8 is a view showing the results of monitoring the underground facilities using a manhole cover according to an embodiment of the present invention.
일실시예에 따른 모니터링 서버는 복수의 맨홀 커버로부터 지하시설물의 상태 정보를 일정 간격으로 수신할 수 있으며, 이를 통해 맨홀이 위치한 곳의 맨홀 내부 상태를 지속적으로 모니터링 할 수 있다. 도 8의 모니터링 시스템(800)은, 특정 지역에 위치한 맨홀의 하수량을 주기적으로 모니터링한 결과를 도시한 것이다. 예를 들어, 성남시 분당구 이매동 관내에 위치한 맨홀 커버들(801 내지 808)로부터 각 맨홀 내부의 하수량 현황에 대한 상태 정보를 주기적으로 수신할 수 있다. 8번 맨홀 커버로부터 수신한 정보(808)에 따르면, 8번 맨홀(이매동 99번지 2맨홀) 내부의 하수량이 70%로서 위험 상태에 있음을 확인할 수 있다. Monitoring server according to an embodiment may receive the state information of the underground facilities from a plurality of manhole cover at regular intervals, through which it is possible to continuously monitor the state inside the manhole where the manhole is located. The monitoring system 800 of FIG. 8 illustrates a result of periodically monitoring the amount of sewage of a manhole located in a specific area. For example, it is possible to periodically receive status information on the current amount of sewage in each manhole from the manhole covers 801 to 808 located in Imae-dong, Bundang-gu, Seongnam-si. According to the information 808 received from the eighth manhole cover, it can be confirmed that the amount of sewage inside the eighth manhole (Imae-dong 99 Manga 2 manhole) is in a dangerous state as 70%.
일실시예에 따른 모니터링 서버는 도 8에 도시된 바와 같이 복수의 맨홀 커버들로부터 수신한 지하시설물의 상태 정보에 기초하여, 각 맨홀 커버가 설치된 위치 및 측정 시간을 포함하는 보고서를 생성할 수 있다.According to an exemplary embodiment, the monitoring server may generate a report including the location of each manhole cover and a measurement time, based on the state information of the underground facilities received from the plurality of manhole covers, as shown in FIG. 8. .
도 9은 본 발명의 일실시예에 따른 맨홀 커버가 맨홀에서 이탈되는지 여부를 감지하는 과정을 설명하기 위한 도면이다. 9 is a view for explaining a process of detecting whether the manhole cover is separated from the manhole according to an embodiment of the present invention.
일실시예에 따른 맨홀 커버는, 맨홀 커버(910)의 기울기를 측정할 수 있는 기울기 센서를 포함할 수 있다. 예를 들어, 맨홀 커버(910)는 3축 센서(920)를 포함할 수 있다. 이때, 3축 센서(920)는 맨홀 커버(910)의 기울기를 측정하여 맨홀 커버(910)가 열리는지 여부를 확인할 수 있다. 예를 들어, 도 9에 도시된 바와 같이 맨홀 커버(910)가 열리는 경우, 3축 센서(920)는 맨홀 커버(910)의 변경된 기울기를 측정할 수 있다. 맨홀 커버(910)는 3축 센서(920)가 측정한 기울기를 모니터링 서버로 전송할 수 있다.The manhole cover according to an embodiment may include an inclination sensor capable of measuring an inclination of the manhole cover 910. For example, the manhole cover 910 may include a three-axis sensor 920. In this case, the 3-axis sensor 920 may determine whether the manhole cover 910 is opened by measuring the inclination of the manhole cover 910. For example, when the manhole cover 910 is opened as shown in FIG. 9, the three-axis sensor 920 may measure the changed inclination of the manhole cover 910. The manhole cover 910 may transmit the inclination measured by the three-axis sensor 920 to the monitoring server.
일실시예에 따른 모니터링 서버는 맨홀 별 작업 일정에 대한 정보가 저장된 데이터베이스를 포함할 수 있다. 모니터링 서버는 기울기 변화가 감지된 맨홀 커버와 관련하여 예정된 작업 일정이 있는지를 판단하여, 상기 기울기 변화가 발생한 맨홀 커버의 도난 여부를 감지할 수 있다. 예를 들어, 기울기 변화가 감지된 맨홀 커버와 관련하여 예정된 작업 일정이 존재하지 않을 경우, 상기 맨홀 커버에 대한 도난이 발생한 것으로 판단할 수 있다. 이때, 모니터링 서버는 관리자에게 맨홀 커버(910)의 도난이 발생하고 있음을 알리는 경고 알람을 출력할 수 있으며, 맨홀 커버(910)의 위치를 제공할 수 있다.The monitoring server according to an embodiment may include a database in which information on a work schedule for each manhole is stored. The monitoring server may determine whether there is a scheduled work schedule in relation to the manhole cover in which the tilt change is detected, and detect whether the manhole cover in which the tilt change has occurred is stolen. For example, when there is no scheduled work schedule with respect to the manhole cover in which the tilt change is detected, it may be determined that the theft of the manhole cover has occurred. In this case, the monitoring server may output a warning alarm notifying the manager that the theft of the manhole cover 910 is occurring, and may provide a location of the manhole cover 910.
모니터링 서버는 도난이 발생한 것으로 판단된 맨홀 커버(910)를 다른 맨홀 커버와 다른 색으로 표시한 보고서(930)를 사용자에게 제공함으로써, 사용자가 도난이 발생한 맨홀 커버(910)를 용이하게 식별하도록 할 수 있다. 예를 들어, 8개의 맨홀 커버(931 내지 938)들 중, 8번 맨홀(938)의 기울기가 변화 되었음을 확인할 수 있다. 동시에 모니터링 서버의 데이터베이스에 저장된 작업 일정 내역(940)을 확인하여, 상기 맨홀 커버에 대한 기울기 변화가 예정된 작업에 따른 기울기 변화인지 여부를 판단할 수 있다.The monitoring server provides the user with a report 930 displaying the manhole cover 910 determined to have been stolen in a different color from the other manhole covers, so that the user can easily identify the manhole cover 910 where theft has occurred. Can be. For example, it may be confirmed that the inclination of the eighth manhole 938 is changed among the eight manhole covers 931 to 938. At the same time, the work schedule history 940 stored in the database of the monitoring server may be checked to determine whether the change in the slope of the manhole cover is a change in the slope according to the scheduled work.
도 10은 본 발명의 일실시예에 따른 맨홀 작업자 모니터링 과정을 나타낸 도면이다.10 is a view showing a manhole worker monitoring process according to an embodiment of the present invention.
일실시예에 따라, 맨홀 작업자는 도 10에 도시된 바와 같이 신체에 착용할 수 있는 웨어러블 장치(1010)를 착용할 수 있다. 웨어러블 장치(1010)는 작업자의 심박, 체온과 같은 상태 정보를 측정할 수 있으며, 측정된 정보를 무선 통신망을 통해 송출할 수 있다. 이때, 맨홀 커버는 웨어러블 장치(1010)가 송출한 작업자의 상태 정보를 맨홀 커버에 구비된 LPWAN 통신 모듈을 이용하여 외부로 송출할 수 있다. 맨홀 커버를 통해 송출된 작업자의 상태 정보는 기지국(1020)을 통하여 모니터링 서버에 전송될 수 있다. 다시 말해, 맨홀 커버는 웨어러블 장치(1010)가 측정한 작업자의 상태 정보를 모니터링 서버로 전달할 수 있다. 이때, 모니터링 서버는 작업자들의 이름 및 상태 정보가 포함된 보고서(1030)를 관리자에게 제공함으로써, 관리자가 작업자들의 상태를 실시간으로 확인하도록 할 수 있다.According to one embodiment, the manhole worker may wear a wearable device 1010 that may be worn on the body as shown in FIG. 10. The wearable device 1010 may measure state information such as a heart rate and a body temperature of an operator, and transmit the measured information through a wireless communication network. In this case, the manhole cover may transmit the state information of the worker sent by the wearable device 1010 to the outside using the LPWAN communication module provided in the manhole cover. The state information of the worker transmitted through the manhole cover may be transmitted to the monitoring server through the base station 1020. In other words, the manhole cover may transmit the state information of the worker measured by the wearable device 1010 to the monitoring server. In this case, the monitoring server may provide the manager with a report 1030 including the names and status information of the workers, so that the manager can check the status of the workers in real time.
보고서(1030)는 도 10에 도시된 바와 같이 작업자가 소지한 이동 단말에 표시될 수도 있다. 작업 도중 작업자의 신체에 이상이 발생한 경우, 이동 단말에 표시된 보고서(1030)의 119 신고 또는 협조 요청 아이콘을 클릭함으로써 구조를 요청할 수 있다.The report 1030 may be displayed on the mobile terminal possessed by the worker, as shown in FIG. 10. If an abnormality occurs in the body of the worker during the operation, the rescue may be requested by clicking the 119 report or cooperation request icon of the report 1030 displayed on the mobile terminal.
도 11은 본 발명의 일실시예에 따른 맨홀 커버를 이용하여 지하시설물을 모니터링하는 방법을 설명하기 위한 순서도이다.11 is a flowchart illustrating a method for monitoring underground facilities using a manhole cover according to an embodiment of the present invention.
단계(1110)에서, LPWA 네트워크에 따라 지하시설물 상태를 센싱하는 적어도 하나의 센서 장치로부터 지하시설물에 대한 센서 정보를 수신할 수 있다. 센서 장치는 지하시설물에 장착되어 주기적으로 지하시설물의 상태 정보를 획득할 수 있다. 획득된 상태 정보는 무선 통신 또는 유선 통신 방식을 이용하여 맨홀 커버에 배치된 통신 장치로 전달될 수 있다. 통신 장치는 맨홀 커버의 하단에 배치될 수 있다. 맨홀 커버에 배치되는 통신 장치는 맨홀 내부에서 발생하는 전파 등을 수신하여 맨홀 커버의 외부로 전달하는 역할을 할 수 있다. 맨홀 커버의 하단에 배치된 통신 장치는 맨홀 커버를 관통하는 적어도 하나의 홀(hole)을 통해 맨홀 커버의 상단에 배치된 안테나와 통신할 수 있다. In operation 1110, sensor information on the underground facility may be received from at least one sensor device that senses the status of the underground facility according to the LPWA network. The sensor device may be installed in the underground facility to periodically acquire status information of the underground facility. The obtained state information may be transmitted to a communication device disposed in the manhole cover using a wireless communication or a wired communication scheme. The communication device may be disposed at the bottom of the manhole cover. The communication device disposed in the manhole cover may serve to receive radio waves generated in the manhole and transmit the radio waves to the outside of the manhole cover. The communication device disposed at the bottom of the manhole cover may communicate with the antenna disposed at the top of the manhole cover through at least one hole passing through the manhole cover.
맨홀 커버에 구비된 적어도 하나의 홀은 맨홀 커버를 관통하는 구멍 형태로 구성되어 맨홀 커버의 상단에 배치된 안테나와 하단에 배치된 통신 장치가 유선 통신 방식으로 연결될 수 있다. 맨홀 커버에 구비된 적어도 하나의 홀은 전파 투과성 소재가 상기 적어도 하나의 홀을 채우는 형태로 구성될 수 있으며, 이 경우 맨홀 커버의 상단에 배치된 안테나와 하단에 배치된 통신 장치는 무선 통신 방식으로 연결될 수 있다.The at least one hole provided in the manhole cover is configured in the form of a hole penetrating the manhole cover so that the antenna disposed at the top of the manhole cover and the communication device disposed at the bottom may be connected in a wired communication manner. The at least one hole provided in the manhole cover may be configured in such a manner that a radio wave transmissive material fills the at least one hole. In this case, the antenna disposed on the upper portion of the manhole cover and the communication device disposed on the lower portion may be formed by a wireless communication method. Can be connected.
단계(1120)에서, 수신된 지하시설물의 상태 정보를 기초로 지하시설물의 상태를 판단할 수 있다. 맨홀 커버에서 지하시설물의 상태를 판단하는 동작은, 지하시설물의 상태가 관리자에 의해 미리 설정된 임계치를 초과하는지 여부 등으로 수행될 수 있다. 예를 들어, 맨홀 커버를 통해 하수관의 수위를 모니터링하는 경우, 맨홀 내부에 설치된 수위 측정 센서로부터 하수관의 수위 정보를 수신할 수 있다. 수신된 하수관의 수위 정보는 관리자에 의해 미리 설정된 값을 초과하는지 여부를 통해 판단하는데 이용될 수 있다.In operation 1120, the state of the underground facility may be determined based on the received state information of the underground facility. The operation of determining the state of the underground facility in the manhole cover may be performed by whether or not the state of the underground facility exceeds a threshold preset by the administrator. For example, when monitoring the water level of the sewer pipe through the manhole cover, it is possible to receive the water level information of the sewer pipe from the water level measurement sensor installed inside the manhole. The received water level information of the sewer pipe may be used to determine whether or not to exceed the value preset by the administrator.
단계(1130)에서, 맨홀 커버는 판단된 결과를 맨홀 커버에 실장된 안테나를 통해 외부의 모니터링 서버로 송신할 수 있다. 맨홀 커버에 배치되는 안테나는 LPWA 네트워크를 기반으로 모니터링 서버와 통신할 수 있다. 맨홀 커버에 배치된 안테나를 통해 지하시설물에 대한 상태 정보를 수신한 모니터링 서버는 수신한 정보를 관리자에게 출력할 수 있다.In operation 1130, the manhole cover may transmit the determined result to an external monitoring server through an antenna mounted on the manhole cover. An antenna disposed on the manhole cover may communicate with the monitoring server based on the LPWA network. The monitoring server that receives the status information on the underground facility through the antenna disposed on the manhole cover may output the received information to the manager.
다양한 실시예에 따른 방법은 다양한 컴퓨터 수단을 통하여 수행될 수 있는 프로그램 명령 형태로 구현되어 컴퓨터 판독 가능 매체에 기록될 수 있다. 상기 컴퓨터 판독 가능 매체는 프로그램 명령, 데이터 파일, 데이터 구조 등을 단독으로 또는 조합하여 포함할 수 있다. 상기 매체에 기록되는 프로그램 명령은 실시예를 위하여 특별히 설계되고 구성된 것들이거나 컴퓨터 소프트웨어 당업자에게 공지되어 사용 가능한 것일 수도 있다. 컴퓨터 판독 가능 기록 매체의 예에는 하드 디스크, 플로피 디스크 및 자기 테이프와 같은 자기 매체(magnetic media), CD-ROM, DVD와 같은 광기록 매체(optical media), 플롭티컬 디스크(floptical disk)와 같은 자기-광 매체(magneto-optical media), 및 롬(ROM), 램(RAM), 플래시 메모리 등과 같은 프로그램 명령을 저장하고 수행하도록 특별히 구성된 하드웨어 장치가 포함된다. 프로그램 명령의 예에는 컴파일러에 의해 만들어지는 것과 같은 기계어 코드뿐만 아니라 인터프리터 등을 사용해서 컴퓨터에 의해서 실행될 수 있는 고급 언어 코드를 포함한다. 상기된 하드웨어 장치는 실시예의 동작을 수행하기 위해 하나 이상의 소프트웨어 모듈로서 작동하도록 구성될 수 있으며, 그 역도 마찬가지이다.The method according to various embodiments may be embodied in the form of program instructions that may be executed by various computer means and recorded on a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the media may be those specially designed and constructed for the purposes of the embodiments, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.
이상과 같이 본 발명은 비록 한정된 실시예와 도면에 의해 설명되었으나, 본 발명은 상기의 실시예에 한정되는 것은 아니며, 본 발명이 속하는 분야에서 통상의 지식을 가진 자라면 이러한 기재로부터 다양한 수정 및 변형이 가능하다.As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.
그러므로, 본 발명의 범위는 설명된 실시예에 국한되어 정해져서는 아니 되며, 후술하는 특허청구범위뿐 아니라 이 특허청구범위와 균등한 것들에 의해 정해져야 한다.Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

Claims (14)

  1. 저전력 광대역 통신 네트워크(LPWAN: Low-Power Wide-Area Network) 기반의 지하시설물 상태를 모니터링 하기 위한 맨홀 커버에 있어서,In the manhole cover for monitoring the status of underground facilities based on low-power wide-area network (LPWAN),
    상기 맨홀 커버의 상단에 상기 LPWA 네트워크에 따라 지하시설물 상태를 센싱하는 센서 장치의 센서 정보를 모니터링 서버에 송신하기 위한 안테나가 배치될 수 있는 공간을 포함하고,A space on which an antenna for transmitting sensor information of a sensor device for sensing a state of underground facilities according to the LPWA network to a monitoring server is disposed on an upper end of the manhole cover,
    상기 맨홀 커버의 하단은, 상기 센서 장치로부터 유선 통신 또는 무선 통신에 따라 센서 정보를 수집할 수 있는 매립형의 통신 장치가 배치될 수 있고,The lower end of the manhole cover, a buried type communication device that can collect sensor information from the sensor device in accordance with wired or wireless communication may be disposed,
    상기 공간의 하단에 상기 안테나와 통신 장치가 연결될 수 있는 홀이 구비된 맨홀 커버.A manhole cover having a hole through which the antenna and the communication device can be connected to the bottom of the space.
  2. 제1항에 있어서,The method of claim 1,
    상기 공간은,The space is,
    상기 맨홀 커버의 상단 중앙 또는 상단 측면에 음각 형태로 배치되는 맨홀 커버.The manhole cover is disposed in an intaglio shape at the top center or top side of the manhole cover.
  3. 제1항에 있어서,The method of claim 1,
    상기 공간은,The space is,
    상기 맨홀 커버의 외부와 차단하기 위한 보호판에 의해 폐쇄될 수 있는 맨홀 커버.A manhole cover that can be closed by a protective plate for blocking the outside of the manhole cover.
  4. 제1항에 있어서,The method of claim 1,
    상기 홀은,The hole,
    상기 지하시설물 상태를 센싱하는 센서 장치가 수집한 센서 정보를 유선 통신 또는 무선 통신에 따라 상기 안테나로 전달하기 위해 상기 맨홀 커버를 관통하는 캐비티 구조로 구성되는 맨홀 커버.And a cavity structure penetrating the manhole cover to transmit sensor information collected by the sensor device sensing the state of the underground facility to the antenna according to wired or wireless communication.
  5. 제1항에 있어서,The method of claim 1,
    상기 맨홀 구조의 상단 또는 하단은,The top or bottom of the manhole structure,
    복수의 격자들로 구성된 격자 플레이트 구조로 구성되고,Composed of a grid plate structure consisting of a plurality of gratings,
    상기 통신 장치는,The communication device,
    상기 맨홀 구조의 하단에 구성된 상기 복수의 격자들 중 어느 하나의 격자에 매립될 수 있는 맨홀 커버.A manhole cover that can be embedded in any one of the plurality of gratings configured at the bottom of the manhole structure.
  6. 제5항에 있어서,The method of claim 5,
    상기 격자 플레이트 구조는,The grid plate structure,
    복수의 격자가 서로 교차하는 형태로 구성되는 교차형 격자 플레이트 구조나, 상기 격자 플레이트 구조가 밀폐되는 형태로 구성되는 볼록형 격자 플레이트 구조를 포함하는 맨홀 커버.A manhole cover comprising an intersecting lattice plate structure in which a plurality of lattices cross each other or a convex lattice plate structure in which the lattice plate structure is closed.
  7. 제5항에 있어서,The method of claim 5,
    상기 통신 장치는,The communication device,
    상기 격자의 사이즈에 대응하고, 상기 맨홀 커버의 외부에서 발생되는 물리적 영향을 차단하기 위한 DCU(Data Concentrator Unit) 케이스에 탑재될 수 있는 맨홀 커버.A manhole cover corresponding to the size of the grating, and may be mounted in a DCU (Data Concentrator Unit) case for blocking a physical effect generated outside the manhole cover.
  8. 제7항에 있어서,The method of claim 7, wherein
    상기 DCU 케이스는,The DCU case,
    상기 맨홀 커버의 하단에 밀봉될 수 있으며, 상기 DCU 케이스 내에 탑재된 통신 장치를 관리하기 위해 개방형으로 탑재되는 맨홀 커버.A manhole cover which may be sealed at a lower end of the manhole cover, and is openly mounted to manage a communication device mounted in the DCU case.
  9. 제1항에 있어서,The method of claim 1,
    상기 안테나는,The antenna,
    다층 패턴 레이어 구조의 LPWA 전용 안테나로써, 통신 신호를 전방향성 방사 형태로 저전력 광대역 통신 네트워크의 기지국에 송신하는 맨홀 커버.LPWA dedicated antenna with a multi-layer pattern layer structure, which transmits a communication signal to a base station of a low power broadband communication network in the form of omni-directional radiation.
  10. 제1항에 있어서, The method of claim 1,
    상기 맨홀 커버의 기울기를 측정할 수 있는 기울기 센서가 상기 맨홀 커버의 하단에 배치될 수 있고, An inclination sensor capable of measuring an inclination of the manhole cover may be disposed at a lower end of the manhole cover,
    상기 기울기 센서는, 상기 맨홀 커버의 일부 또는 전부가 맨홀로부터 이탈되는지 여부를 판단하는 맨홀 커버.The inclination sensor is a manhole cover that determines whether part or all of the manhole cover is separated from the manhole.
  11. 제1항에 있어서,The method of claim 1,
    상기 통신 장치는,The communication device,
    RF 통신, 블루투스(BLE) 또는 지그비(ZigBee)를 포함하는 무선 통신 방식을 통해 지하시설물의 상태를 센싱하는 센서 장치와 통신하는 맨홀 커버.Manhole cover to communicate with the sensor device for sensing the state of the underground facilities through a wireless communication method including RF communication, Bluetooth (BLE) or ZigBee (ZigBee).
  12. 제1항에 있어서,The method of claim 1,
    상기 맨홀 커버의 상단에 배치된 공간은,The space disposed at the top of the manhole cover,
    상기 맨홀 커버의 외부로부터 가해진 힘 또는 외부로부터 유입되는 물질로부터 상기 안테나를 보호하기 위한 완충재로 채워질 수 있는 맨홀 커버.And a manhole cover that can be filled with a buffer to protect the antenna from force applied from the outside of the manhole cover or material flowing from the outside.
  13. 저전력 광대역 통신 네트워크(LPWAN: Low-Power Wide-Area Network) 기반의 맨홀 커버를 이용하여 지하시설물의 상태를 모니터링하는 방법에 있어서,In the method for monitoring the status of underground facilities using a manhole cover based on low-power wide-area network (LPWAN),
    상기 LPWA 네트워크에 따라 지하시설물 상태를 센싱하는 적어도 하나의 센서 장치로부터 상기 지하시설물에 대한 센서 정보를 수신하는 단계;Receiving sensor information on the underground facility from at least one sensor device sensing a state of the underground facility according to the LPWA network;
    상기 수신된 센서 정보를 기초로 상기 지하시설물 상태를 판단하는 단계; 및Determining the state of the underground facility based on the received sensor information; And
    상기 판단된 결과를 모니터링 서버로 송신하는 단계;Transmitting the determined result to a monitoring server;
    를 포함하며,Including;
    상기 맨홀 커버는,The manhole cover,
    상기 맨홀 커버의 상단에 상기 LPWA 네트워크에 따라 지하시설물 상태를 센싱하는 센서 장치의 센서 정보를 모니터링 서버에 송신하기 위한 안테나가 배치될 수 있는 공간을 포함하고,A space on which an antenna for transmitting sensor information of a sensor device for sensing a state of underground facilities according to the LPWA network to a monitoring server is disposed on an upper end of the manhole cover,
    상기 맨홀 커버의 하단은, 상기 센서 장치로부터 유선 통신 또는 무선 통신에 따라 센서 정보를 수집할 수 있는 매립형의 통신 장치가 배치될 수 있고,The lower end of the manhole cover, a buried type communication device that can collect sensor information from the sensor device in accordance with wired or wireless communication may be disposed,
    상기 공간의 하단에 상기 안테나와 통신 장치가 연결될 수 있는 홀이 구비된 방법.And a hole through which the antenna and the communication device can be connected to the bottom of the space.
  14. 저전력 광대역 통신 네트워크(LPWAN: Low-Power Wide-Area Network) 기반의 맨홀 커버를 이용하여 지하시설물의 상태를 모니터링하는 시스템에 있어서,In the system for monitoring the status of underground facilities using a manhole cover based on low-power wide-area network (LPWAN),
    상기 LPWA 네트워크에 따라 지하시설물 상태를 센싱하는 적어도 하나의 센서 장치;At least one sensor device for sensing a state of an underground facility according to the LPWA network;
    상기 센서 장치로부터 상기 지하시설물에 대한 센서 정보를 수신하고, 상기 수신된 센서 정보를 기초로 상기 지하시설물의 상태를 판단하며, 상기 판단된 결과를 모니터링 서버로 송신하는 맨홀 커버; 및A manhole cover configured to receive sensor information on the underground facility from the sensor device, determine a state of the underground facility based on the received sensor information, and transmit the determined result to a monitoring server; And
    상기 맨홀 커버로부터 상기 판단된 결과를 수신하고, 수신된 결과에 대응되는 데이터를 출력하는 모니터링 서버를 포함하고,A monitoring server receiving the determined result from the manhole cover and outputting data corresponding to the received result;
    상기 맨홀 커버는,The manhole cover,
    상기 맨홀 커버의 상단에 상기 LPWA 네트워크에 따라 지하시설물 상태를 센싱하는 센서 장치의 센서 정보를 모니터링 서버에 송신하기 위한 안테나가 배치될 수 있는 공간을 포함하고,A space on which an antenna for transmitting sensor information of a sensor device for sensing a state of underground facilities according to the LPWA network to a monitoring server is disposed on an upper end of the manhole cover,
    상기 맨홀 커버의 하단은, 상기 센서 장치로부터 유선 통신 또는 무선 통신에 따라 센서 정보를 수집할 수 있는 매립형의 통신 장치가 배치될 수 있고,The lower end of the manhole cover, a buried type communication device that can collect sensor information from the sensor device in accordance with wired or wireless communication may be disposed,
    상기 공간의 하단에 상기 안테나와 통신 장치가 연결될 수 있는 홀이 구비된 시스템.And a hole through which the antenna and the communication device can be connected to the bottom of the space.
PCT/KR2017/002919 2016-03-31 2017-03-20 Manhole cover for monitoring state of underground facility on basis of low-power wide-area (lpwa) network WO2017171281A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2016-0039532 2016-03-31
KR20160039532 2016-03-31
KR10-2016-0080435 2016-06-27
KR1020160080435A KR101880472B1 (en) 2016-03-31 2016-06-27 Manhole cover for monitoring underground facility based on lpwan

Publications (2)

Publication Number Publication Date
WO2017171281A2 true WO2017171281A2 (en) 2017-10-05
WO2017171281A3 WO2017171281A3 (en) 2018-08-02

Family

ID=59966042

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2017/002919 WO2017171281A2 (en) 2016-03-31 2017-03-20 Manhole cover for monitoring state of underground facility on basis of low-power wide-area (lpwa) network

Country Status (1)

Country Link
WO (1) WO2017171281A2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10694338B2 (en) 2017-11-07 2020-06-23 Pica Product Development, Llc Cellular automated external defibrillator (AED) tracker
US10798541B2 (en) 2017-11-07 2020-10-06 Pica Product Development, Llc Systems, methods and devices for remote trap monitoring
CN111896043A (en) * 2020-06-05 2020-11-06 北京无线电计量测试研究所 Inspection well fault positioning system and inspection well fault positioning method
US10909830B1 (en) 2017-11-07 2021-02-02 Pica Product Development, Llc Personal emergency alert system, method and device
DE102019127486A1 (en) * 2019-10-11 2021-04-15 ACO Severin Ahlmann GmbH & Co Kommanditgesellschaft Manhole frame and manhole cover

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3099789B2 (en) * 1997-10-20 2000-10-16 日本電気株式会社 Handoff control method in mobile communication system
US7292143B2 (en) * 2005-05-20 2007-11-06 Drake David A Remote sensing and communication system
KR100989933B1 (en) * 2006-02-28 2010-10-26 한국전력공사 A antenna structure for monitoring of manhole
KR101159106B1 (en) * 2009-09-22 2012-06-22 부영산전주식회사 Water-proof manhole with supervisory equipment
KR20120092393A (en) * 2011-02-11 2012-08-21 전자부품연구원 Manhole cover type sensor node apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10694338B2 (en) 2017-11-07 2020-06-23 Pica Product Development, Llc Cellular automated external defibrillator (AED) tracker
US10798541B2 (en) 2017-11-07 2020-10-06 Pica Product Development, Llc Systems, methods and devices for remote trap monitoring
US10909830B1 (en) 2017-11-07 2021-02-02 Pica Product Development, Llc Personal emergency alert system, method and device
US11122394B2 (en) 2017-11-07 2021-09-14 Pica Product Development, Llc Automated external defibrillator (AED) monitoring service
US11183043B1 (en) 2017-11-07 2021-11-23 Pica Product Development, Llc Personal emergency alert system, method, and device
US11765560B2 (en) 2017-11-07 2023-09-19 Pica Product Development, Llc Systems, methods, and devices for remote trap monitoring
DE102019127486A1 (en) * 2019-10-11 2021-04-15 ACO Severin Ahlmann GmbH & Co Kommanditgesellschaft Manhole frame and manhole cover
CN111896043A (en) * 2020-06-05 2020-11-06 北京无线电计量测试研究所 Inspection well fault positioning system and inspection well fault positioning method

Also Published As

Publication number Publication date
WO2017171281A3 (en) 2018-08-02

Similar Documents

Publication Publication Date Title
WO2017171281A2 (en) Manhole cover for monitoring state of underground facility on basis of low-power wide-area (lpwa) network
KR101880472B1 (en) Manhole cover for monitoring underground facility based on lpwan
KR101196802B1 (en) System of safety supervision using hard hat
WO2017159946A1 (en) Safety management system for worker at tunnel construction site
JP2021533393A (en) Systems and methods for monitoring hydrogeological risks
KR101353387B1 (en) Communication tower-structure status monitoring system using displacement sensor
KR101946809B1 (en) Intelligent Data Processing Method for Preventing Disaster of Earthquake
WO2021172719A1 (en) Iot-based groundwater monitoring system using lidar sensor technology
WO2022092459A1 (en) Real-time unmanned slope monitoring system having power management function
KR20090095966A (en) System for investigating state of manhole
WO2018131755A1 (en) Virtual accident-based radiation emergency site exploration training method
US20130269440A1 (en) Water-leakage detection method and water-leakage detection device
CN113252735B (en) Water quality layered monitoring system and method for underground water in polluted site
WO2022045468A1 (en) System for integrated measurement and management of sensing data for detection of collapse within mine pit
KR20210026426A (en) Smart manhole for monitoring the status of underground facilities and smart manhole control system using the same
KR101409829B1 (en) Load sensing apparatus
CN104950343B (en) Well lid based on Fibre Optical Sensor monitors system and method
CN207020793U (en) A kind of fiber fence circumference monitoring instruction equipment with video interlink function
CN211656391U (en) Cable trench monitoring system
EP3695885A1 (en) System for monitoring a fall arrest device
CN107517442A (en) A kind of mobile electronic device managing and control system and method
WO2023277252A1 (en) Flood and water leak sensing device and manhole cover having flood and water leak sensing function using same
KR101735831B1 (en) System for sensing an abnormal condition in a fabric using a wireless communication sensor module
WO2020256193A1 (en) Vibration detection sensor
KR101904072B1 (en) Switchboard System for Sensing Sink Hole

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17775706

Country of ref document: EP

Kind code of ref document: A2

122 Ep: pct application non-entry in european phase

Ref document number: 17775706

Country of ref document: EP

Kind code of ref document: A2