WIRELESS COMMUNICATION DEVICE INSIDE MANHOLE

• US 20170359094A1
• Filed: 06/24/2015
• Published: 12/14/2017
• Est. Priority Date: 12/29/2014
• Status: Abandoned Application

• Current Assignee: Hyeong-Seo Koo
• Original Assignee: Hyeong-Seo Koo
• Inventors: KOO, Hyeong-Seo
• Application Number:
  US15/540,567
• Publication Number:
  US 20170359094A1
• Time in Patent Office: Days
• CPC Class Codes: E02D 29/12 Manhole shafts; Other inspection or access chambers; Accessories therefor for underground tanks B65D90/10; for sewerage E03F5/02 ; climbing irons or ladders E06C9/00
• CPC Class Codes: E02D 29/14 Covers for manholes or the like; Frames for covers gully gratings E03F5/06
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G08B 21/12 responsive to undesired emission of substances, e.g. pollution alarms
• CPC Class Codes: G08B 21/16 Combustible gas alarms
• CPC Class Codes: G08B 21/20 responsive to moisture
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: H04B 1/38 Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving

Abstract

The present invention relates to a wireless communication device inside a manhole, comprising: a communication terminal installed inside a manhole; and an antenna extension cable connected to the communication terminal, wherein the antenna extension cable is electrically connected to a manhole cover of a conductive material which acts as an antenna so as to deliver a signal received from the manhole cover of a conductive material to the communication terminal. The wireless communication device inside a manhole is capable of delivering information regarding the inside of the manhole (equipment inspection, leakage check, etc.) to the outside without the manhole cover being opened. As such, it is possible to resolve traffic congestion caused by manhole check; control facilities inside the manhole without opening the manhole cover; by delivering opening and closing information of the manhole cover, prevent theft of the manhole and obviate safety accidents caused by the opening of the manhole cover; and prevent manhole worker safety accidents by monitoring the working environment during manhole work.

Claims

1. A wireless communication device inside a manhole, comprising:

a communication terminal installed inside the manhole; and

an antenna extension cable connected to the communication terminal,

wherein the antenna extension cable is electrically connected to a manhole cover of a conductive material serving as an antenna, and transmits a signal received from the manhole cover to the communication terminal.

4. The wireless communication device according to any one of claims 1 to 3, further comprising:

at least one of a gas sensor, a water leakage sensor and a manhole opening/closing sensor installed inside the manhole; and

a display member electrically connected to the communication terminal and arranged so as to externally indicate a state of the manhole,

wherein the communication terminal determines the state of the manhole based on sensing information from the gas sensor, the water leakage sensor, or the manhole opening/closing sensor, and displays the state through the display member.

2. A wireless communication device inside a manhole, comprising:

a communication terminal installed inside the manhole;

an antenna extension cable connected to the communication terminal; and

an antenna electrically connected to the antenna extension cable,

wherein the antenna extension cable is inserted into a tube provided inside a manhole wall, and the antenna is arranged in a groove formed in a manhole housing contacting an outside, such that an external signal is transmitted to the communication terminal inside the manhole through the antenna extension cable.

3. The wireless communication device according to claim 2, wherein the groove having the antenna inserted thereinto is coated or filled with a protective material containing one of silicone and glue to prevent the antenna from being damaged or water or foreign substances from infiltrating into the manhole.