KR102001960B1 - Antenna Module Waterproof and Embedded Structure for Smart Manhole Cover - Google Patents

Antenna Module Waterproof and Embedded Structure for Smart Manhole Cover Download PDF

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Publication number
KR102001960B1
KR102001960B1 KR1020190024638A KR20190024638A KR102001960B1 KR 102001960 B1 KR102001960 B1 KR 102001960B1 KR 1020190024638 A KR1020190024638 A KR 1020190024638A KR 20190024638 A KR20190024638 A KR 20190024638A KR 102001960 B1 KR102001960 B1 KR 102001960B1
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KR
South Korea
Prior art keywords
antenna
cover
manhole
manhole cover
antenna module
Prior art date
Application number
KR1020190024638A
Other languages
Korean (ko)
Inventor
임동진
강윤구
이가람
김건
Original Assignee
코비코 주식회사
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Priority to KR1020190024638A priority Critical patent/KR102001960B1/en
Application granted granted Critical
Publication of KR102001960B1 publication Critical patent/KR102001960B1/en

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/12Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14Covers for manholes or the like; Frames for covers
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles

Abstract

The present invention relates to an antenna module waterproof and embedded structure for a smart manhole cover, which prevents an antenna module from being damaged by a vehicle or the like traveling on a manhole cover while avoiding a modem device, a sensor device, and an inner structure of the manhole cover from being damaged by water introduced into a gap between the antenna module, provided in the manhole cover of a smart manhole, and the manhole cover. The smart manhole cover includes: an outer manhole cover (10) seated on a manhole frame (30), having an antenna module (50) installed in the center of the outer surface thereof, and having a modem device (60) for relaying between the sensor device for monitoring and the antenna module (50) on the inner surface thereof; and an inner manhole cover (20) seated on the manhole frame (30) on a lower portion of the outer manhole cover (10) to prevent exposure of the modem device (60). The antenna module (50) includes: an antenna (51); a lower cover (52) having an antenna mounting portion (52a) which is provided on an upper surface thereof and on which the antenna (51) is mounted to prevent a lower portion of the antenna (51) from being exposed; and an upper cover (53) having an antenna accommodating portion (53a) which is formed in a lower side thereof and in which the antenna (51) is positioned to prevent an upper portion of the antenna (51) from being exposed, and coupled to the lower cover (52). An antenna mounting groove (15), on which the antenna module (50) is received and mounted, is formed in the center of the outer surface of the outer manhole cover (10), and the antenna module (50) is embedded in the antenna mounting groove (15).

Description

Antenna Module Waterproof and Embedded Structure of Smart Manhole Lid {Antenna Module Waterproof and Embedded Structure for Smart Manhole Cover}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an antenna module for waterproofing and filling a smart manhole cover, and more particularly, to an antenna module provided in a manhole cover (e.g., a cover) of a Smart Manhole, A smart manhole lid antenna module waterproof and buried structure that prevents the modem, sensor, and metal structure inside the manhole cover from being corroded by moisture and prevents the antenna module from being damaged by a vehicle or the like running on the upper part of the manhole cover .

In general, a manhole is a hole formed on a road surface so that a person can enter and exit the underground for the purpose of managing underground facilities, and a manhole cover is provided so that a vehicle passing through the manhole is not detached.

This manhole management method is mostly performed by a worker periodically opening the manhole cover and going down to the inside of the manhole to directly inspect it. This method not only has a high maintenance cost, There is a risk of being hit.

Accordingly, although the method of checking the inner state of the manhole using the sensor is used, the manhole cover provided on the manhole is formed of cast iron or reinforced concrete to block electricity or radio waves and is installed on the back portion of the manhole cover In order to collect the measurement result of the sensor, there is still a problem that the operator must visit the manhole and open the manhole cover to release the radio wave interception and collect the measurement result of the sensor. Therefore, there is a problem that the risk of accident is reduced because the worker does not enter the inside of the manhole but the maintenance cost is still high.

In recent years, a sewage manhole monitoring system based on M2M (Object Communication) / IoT (Object Internet) used in a smart building has been developed to monitor the amount of water flowing in a sewer pipe and its change. In this system, It is difficult to repair the system when it is installed or a fault occurs.

Recently, a method of monitoring the condition of a manhole by radio has been studied, one of which is a smart manhole. The smart manhole is provided with a sensor for detecting the state of the facility inside the manhole and an antenna module for transmitting and receiving the signal of the sensor to the manhole cover to allow the operator to manage the facilities inside the manhole without visiting the manhole There is an advantage that the maintenance cost can be reduced.

In the smart manhole, an antenna module is installed on the outer surface of the manhole cover, and a modem device for relaying the communication between the sensor and the antenna module is installed in the bottom of the manhole cover. In order to connect the antenna module and the modem device, A through hole is formed at the center.

However, in the above-described smart manhole, when a through hole is formed in the manhole cover, and rain or moisture is present on the road surface, water flows into the gap between the antenna module and the manhole cover, thereby affecting the modem device and sensor inside the manhole cover, Or the sensor is corroded, damaged or malfunctioned due to moisture.

Meanwhile, as a result of investigation of the prior art related to the present invention, a large number of patent documents have been searched and some of them will be described as follows.

Patent Document 1 discloses a fuel cell system comprising: a housing having a sensor for monitoring environmental parameters around a manhole; A microcontroller included in the housing for transmitting parameters to the wireless module and for communicating parameters to the communication device to inform the user that the manhole has been tampered with, Discloses a remote sensing system and method for wireless transmission to a remote location.

Patent Document 2 discloses a portable terminal that includes a first antenna portion located on one side of a manhole cover, a second antenna portion located on another side of the manhole cover, a node coupled to the manhole cover, and controlling transmission / reception of data through the first antenna portion and the second antenna portion. Wherein the node unit receives the flow rate data from the flow meter supporting wireless communication through the first antenna unit and controls the flow rate data to be transmitted to the flow rate data collection device through the second antenna unit. .

Patent Document 3 proposes a code system for an NFC tag according to a method of linking a manhole information system and an underground facility management information system, designs a mechanism for mounting an NFC tag on a manhole cover, (Smart Manhole App) developed by NFC Code Recognition Smart Manhole App, and when the mobile terminal requests information on the communication facilities through the NFC tag recognition attached to the facility equipment of the manhole cover or duct, the management server It provides facility equipment information and maintenance history of manholes and pipelines, cables, enclosures, and underground communication facilities, and a simulation simulator is used as an optimal path communication channel using communication manhole and communication management database for establishing communication lines. LBS-based manhole location information is displayed on a mobile terminal such as a tablet PC, and communication facilities such as a communication manhole and a communication terminal Discloses a smart manhole management system and method using a USN, which is configured so that a systematic replacement plan can be established for old manhole manholes and pipelines through history management of water facility equipment, so that the effect of accident prevention and budget reduction can be expected.

Patent Document 4 includes a space in which an antenna for transmitting sensor information of a sensor device that senses the state of an underground facility according to the LPWA network to a monitoring server is disposed at the upper end of the manhole cover, Type communication device capable of collecting sensor information according to wired communication or wireless communication from an apparatus and a hole for connecting an antenna and a communication device to a lower end of the space, Discloses a manhole cover for monitoring.

Patent Document 1: KR10-2008-0033907 A Patent Document 2: KR 10-2012-0092393 A Patent Document 3: KR10-2017-0056806 A Patent Document 4: KR10-1880472 B1

The present invention relates to a smart manhole which is provided with an antenna module installed on a manhole cover to prevent moisture from flowing into the inside of the manhole cover, thereby providing a modem device installed inside the manhole cover, an underground facility installed inside the manhole, It is an object of the present invention to provide an antenna module waterproofing and filling structure of a smart manhole cover in which an antenna module is prevented from being damaged by a vehicle passing over a manhole cover.

In order to accomplish the above object, according to the present invention, there is provided a waterproofing and embedding structure for an antenna module of a smart manhole cover, comprising: a sensor module installed on a manhole frame and provided with an antenna module at the center of its outer surface, And a manhole cover disposed at a lower portion of the manhole cover so as to prevent exposure of the modem device, the antenna module including an antenna (not shown) The lower cover includes a lower cover for preventing the lower portion of the antenna from being exposed. An antenna receiving portion for receiving the antenna is formed on the upper portion of the lower cover, (Preferably in a forced fit manner) to the lower cover, ; And an antenna mounting groove for receiving and mounting the antenna module is formed at the center of the outer surface of the manhole cover so that the antenna module is embedded in the antenna mounting groove.

According to the waterproofing and embedding structure of the antenna module of the smart manhole cover of the present invention, the upper cover has a radial direction close contact portion which is brought into close contact with the inner wall of the antenna mounting groove, And an upper cover protrusion which is fitted in the upper cover protrusion groove and protrudes downward so as to be in close contact with the outer surface of the lower cover.

According to the waterproofing and embedding structure of the antenna module of the smart manhole cover of the present invention, the lower cover has an antenna mounting portion formed on the upper surface thereof, a through hole formed at the center thereof, And a lower cover protrusion in the circumferential direction fitted to the lower cover protrusion groove formed on the antenna module mounting surface.

According to the waterproofing and embedding structure of the antenna module of the smart manhole cover of the present invention, the antenna is protruded from the lower side to be inserted into the through hole formed at the center of the lower cover and the through hole formed at the center of the antenna mounting groove, And a modem connection unit.

According to the waterproofing and filling structure of the antenna module of the smart manhole cover of the present invention, the antenna module is embedded in the antenna mounting groove, and the elastic cover made of urethane foam material or urethane foam material is inserted on the upper side thereof, So that a step is not generated between the upper surface of the base plate and the upper surface of the base plate.

In the smart manhole cover according to the present invention, the antenna module installed in the antenna mounting groove formed in the manhole cover is coupled to the antenna mounting groove in a detent manner so that water does not penetrate between the manhole cover and the antenna module The modem device located inside the manhole cover and the underground facilities inside the manhole and the sensor device for monitoring the dam are prevented from being corroded or damaged due to moisture.

According to the waterproofing and embedding structure of the antenna module of the smart manhole cover of the present invention, the upper cover of the antenna module is in close contact with the inner wall of the antenna mounting groove, and the upper cover protrusion groove formed in the antenna module mounting surface of the antenna mounting groove, Even if moisture enters between the inner wall of the antenna mounting groove of the manhole cover and the antenna module, the water cover is blocked by the upper cover protrusion and the upper cover protrusion groove so that the water does not flow into the through hole of the antenna mounting groove have.

According to the waterproofing and embedding structure of the antenna module of the smart manhole cover of the present invention, the lower cover of the antenna module is in close contact with the inner wall of the upper cover, and the lower cover protrusion groove formed in the antenna- As the lower cover protrusion is inserted, even if moisture enters between the inner wall of the antenna mounting groove of the manhole cover and the antenna module, the water cover is blocked by the lower cover protrusion and the lower cover protrusion groove so that the water does not flow into the through hole of the antenna mounting groove .

In addition, according to the waterproofing and embedding structure of the antenna module of the smart manhole cover of the present invention, since the modem connection portion is provided in the antenna, connection with the modem device provided on the inner surface of the manhole cover is facilitated.

According to the waterproofing and embedding structure of the antenna module of the smart manhole cover of the present invention, the urethane foam material is filled on the upper side of the antenna module or the elastic cover made of the urethane foam material is inserted to prevent a step from the manhole cover, The vehicle can be protected by an external impact, and the vehicle passing over the manhole cover is not affected by the step difference.

1 is an exploded perspective view showing a manhole cover of a smart manhole according to the present invention.
FIG. 2 is an exploded perspective view illustrating an antenna module waterproofing and filling structure of a smart manhole cover according to the present invention. FIG.
3 is a perspective view showing an antenna module mounting groove formed in a manhole cover according to the present invention.
FIG. 4 is an exploded sectional view of a smart manhole cover according to an embodiment of the present invention.
5 is a cross-sectional view of a smart manhole cover according to the present invention.

Hereinafter, with reference to the accompanying drawings, description will be made as to the waterproofing and embedding structure of the antenna module of the smart manhole cover according to the present invention.

FIG. 1 is an exploded perspective view showing a manhole cover of a smart manhole according to an embodiment of the present invention. FIG. 2 is a perspective view of a smart manhole cover according to an embodiment of the present invention. FIG. 3 is a perspective view showing an antenna module mounting groove formed in a manhole cover according to the present invention, FIG. 4 is an exploded sectional view showing an antenna module waterproofing and filling structure of a smart manhole cover according to the present invention, 5 is a cross-sectional view of the smart manhole cover according to the present invention.

The smart manhole cover to which the present invention is applied is composed of a manhole cover 10 and a manhole cover 20 and is coupled to the manhole frame 30 as shown in FIG. The manhole cover 10 is mounted on the manhole frame 30. The manhole cover 10 is provided with an antenna module 50 at the center of its outer surface and a sensor device for monitoring underground facilities and an antenna module 50 A modem device 60 is provided. The manhole cover 20 is disposed at the rear side of the manhole cover 10 so as to prevent the exposure of the modem device 60 installed in the back of the manhole cover 10, Respectively. At this time, a permanent magnet 25 is installed at the center of the manhole cover 20 so as to confirm whether or not the manhole cover 10 is detached.

As shown in FIGS. 2 to 5, the antenna module of the smart manhole cover according to the present invention is waterproofed and buried in an antenna mounting groove And the antenna module 50 is embedded in the antenna mounting groove 15.

The antenna module 50 is provided with an antenna 51 having a modem connection part 51 'at its lower part and an antenna mounting part 52a having an antenna 51 mounted thereon, A lower cover 52 for preventing the antenna 51 from being exposed and an antenna receiving portion 53a for receiving the antenna 51 are formed on the lower side so that the upper portion of the antenna 51 is not exposed, The modem connection portion 51 'of the antenna 51 includes a through hole 52' formed in the lower cover 52 and a through hole 52 'formed in the center of the antenna mounting groove 15 And protrudes from the lower side so as to be inserted into the hole 15c to be communicatively connected to the modem device 60. [

Accordingly, even if there is no gap or there is a gap between the manhole cover 10 and the antenna module 50, the water does not penetrate through the gap. Therefore, the modem device 60 provided in the portion of the manhole cover 10 and the underground facilities inside the manhole and the sensor device for monitoring them are prevented from being corroded or malfunctioned by moisture.

The upper cover 53 is coupled to the lower cover 52 so that the upper portion of the antenna 51 is not exposed and the antenna receiving portion 53a in which the antenna 51 is located is formed inside the upper cover 53, Radially in close contact with the inner wall of the antenna mounting groove 15 and an upper cover projection groove 15b formed along the circumferential direction on the antenna module mounting face 15 ' And a circumferential upper cover projection 53c protruding downward so as to be in close contact with the outer surface of the lower cover 52. [

Even if water flows into the space between the inner wall of the antenna mounting groove 15 of the manhole cover 10 and the antenna module 50, the water is blocked by the upper cover projection 53c and the upper cover projection groove 15b, So that the modem device 60 connected to the modem connection part 51 'of the antenna 51 can be protected from moisture because it is not introduced into the through hole 15c of the groove 15.

The lower cover 52 is provided with an antenna mounting portion 52a on which an antenna 51 is mounted so that the lower portion of the antenna 51 is not exposed. An antenna mounting portion 52a is formed on the upper surface, A through hole 52 'is formed at the center and a lower cover protrusion groove 15a formed on the antenna module mounting surface 15' of the antenna mounting groove 15 protrudes downward from the lower contact surface 52b And a circumferential lower cover projection 52c to be engaged with the lower cover cover 52c.

Even if water flows into the space between the inner wall of the antenna mounting groove 15 of the manhole cover 10 and the antenna module 50, the lower cover protrusion 52c and the lower cover protrusion groove 15a cut off the water, So that the modem device 60 connected to the modem connection part 51 'of the antenna 51 can be protected from moisture because it is not introduced into the through hole 15c of the mounting groove 15.

The antenna module 50 is embedded in the antenna mounting groove 15 and is filled with a urethane foam material (not shown) on the upper side thereof or an elastic cover (not shown) formed of a urethane foam material is inserted thereinto, 10 can be prevented from being generated. As a result, the antenna module 50 can be prevented from being exposed to the outside by the urethane foam material or the elastic cover, and the antenna module 50 can be protected by the external impact, and the vehicle passing over the manhole cover 10 can be mounted The shock caused by the step formed in the groove 15 is not received.

A resin or the like capable of performing adhesion and impact absorption functions may be applied between the upper cover 53 and the lower cover 52 and the antenna 51. [

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be appreciated by those of ordinary skill in the art that various changes and modifications may be made to the invention. Accordingly, all such appropriate changes and modifications and equivalents may be resorted to, falling within the scope of the invention.

10 ... manhole cover
15 ... antenna mounting groove
15 '... antenna module seating surface
15a ... Lower cover protrusion groove
15b ... Upper cover protrusion groove
15c ... through hole
20 ... Manhole cover
25 ... permanent magnet
30 ... manhole frames
50 ... antenna module
51 ... antenna
51 '... modem connection
52 ... lower cover
52 '... through hole
52a ... antenna mounting portion
52b ... close face
52c ... Lower cover protrusion
53 ... Upper cover
53a ... antenna receiving portion
53b ... tight contact portion
53c ... upper cover projection
60 ... modem device

Claims (4)

  1. A manhole frame 30 mounted on the manhole frame 30 and provided with an antenna module 50 at the center of its outer side and a modem device 60 for relaying between a sensor device for monitoring underground facilities and an antenna module 50, A smart manhole cover comprising a cover (10) and a manhole cover (20) disposed at a lower portion of the manhole cover (10) to prevent exposure of the modem device (60) ,
    The antenna module 50 includes a lower cover 52 provided with an antenna 51 and an antenna mounting portion 52a on the upper surface of which the antenna 51 is seated to prevent the lower portion of the antenna 51 from being exposed, And an upper cover (53) formed with an antenna receiving portion (53a) where the antenna (51) is located so as not to expose an upper portion of the antenna (51)
    An antenna mounting groove 15 is formed at the center of the outer surface of the manhole cover 10 to receive and mount the antenna module 50. The antenna module 50 is embedded in the antenna mounting groove 15,
    The upper cover 53 includes a radially in close contact portion 53b which is in close contact with the inner wall of the antenna mount groove 15 and a radially outer contact portion 53b which is formed on the antenna module mount surface 15 ' And a circumferential upper cover protrusion (53c) fitted to the protrusion groove (15b) and protruding downward so as to be in close contact with the outer surface of the lower cover (52). .
  2. The method according to claim 1,
    The lower cover 52 is formed with an antenna mount 52a on the upper surface thereof and a through hole 52 'formed at the center thereof and protruded downward from the lower contact surface 52b, And a circumferential lower cover protrusion (52c) fitted in the lower cover protrusion groove (15a) formed in the module mounting surface (15 ').
  3. The method according to claim 1,
    The antenna 51 has a through hole formed at the center of the lower cover and a modem connection portion 51 'projected from the lower side to be inserted into the through hole 15c formed at the center of the antenna mounting groove 15 and communicated with the modem device 60. [ The smart manhole cover has an antenna module waterproof and buried structure.
  4. 4. The method according to any one of claims 1 to 3,
    And a resin for performing an adhesive function and an impact absorbing function is further filled between the antenna 51 and the lower cover 52 and the upper cover 53. [
KR1020190024638A 2019-03-04 2019-03-04 Antenna Module Waterproof and Embedded Structure for Smart Manhole Cover KR102001960B1 (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1166484A (en) * 1997-08-08 1999-03-09 Kubota Corp Manhole cover antenna equipment and communication system
KR100779157B1 (en) * 2006-07-11 2007-11-26 (주) 시흥 Rotation locking type water supply and drainage . electricity . communications waterproofing manhole cover
KR20080033907A (en) 2005-05-20 2008-04-17 하드로넥스, 엘엘씨 A remote sensing and communication system
KR20100042179A (en) * 2008-10-15 2010-04-23 김종삼 Manhole cover and manhole management system
KR20120092393A (en) 2011-02-11 2012-08-21 전자부품연구원 Manhole cover type sensor node apparatus
JP2015012504A (en) * 2013-06-28 2015-01-19 東京都下水道サービス株式会社 Antenna for manhole cover, and manhole cover with antenna
KR20170056806A (en) 2015-11-14 2017-05-24 광운대학교 산학협력단 Smart manhole duct management system and method using USN
KR101880472B1 (en) 2016-03-31 2018-07-23 주식회사 네이블커뮤니케이션즈 Manhole cover for monitoring underground facility based on lpwan

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1166484A (en) * 1997-08-08 1999-03-09 Kubota Corp Manhole cover antenna equipment and communication system
KR20080033907A (en) 2005-05-20 2008-04-17 하드로넥스, 엘엘씨 A remote sensing and communication system
KR100779157B1 (en) * 2006-07-11 2007-11-26 (주) 시흥 Rotation locking type water supply and drainage . electricity . communications waterproofing manhole cover
KR20100042179A (en) * 2008-10-15 2010-04-23 김종삼 Manhole cover and manhole management system
KR20120092393A (en) 2011-02-11 2012-08-21 전자부품연구원 Manhole cover type sensor node apparatus
JP2015012504A (en) * 2013-06-28 2015-01-19 東京都下水道サービス株式会社 Antenna for manhole cover, and manhole cover with antenna
KR20170056806A (en) 2015-11-14 2017-05-24 광운대학교 산학협력단 Smart manhole duct management system and method using USN
KR101880472B1 (en) 2016-03-31 2018-07-23 주식회사 네이블커뮤니케이션즈 Manhole cover for monitoring underground facility based on lpwan

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