Wireless communication system for managing an underground facility

Abstract

A wireless communication system for managing an underground facility includes: at least one sensor node attached to the underground facility configured to transmit a sensing signal via magnetic field communication after detecting the status information of the underground facility in accordance with a driving signal, the driving signal comprising a wake-up signal; and an information collection device configured to: transmit the driving signal to the sensor node; collect the sensing signal transmitted from the sensor node; and transmit the collected information to a monitoring system via short-range wireless communication.

Description

technical field [0001] The present invention relates to a wireless communication system for managing underground facilities, and more particularly, to a wireless communication system for managing underground facilities capable of providing their accurately measured status information for wireless communication in harsh underground environments. Background technique [0002] Magnetic field communication is a wireless communication system that utilizes a magnetic field within an area defined by a distance λ / 2π from the antenna at which the electromagnetic field is separated from the antenna and propagates into free space in the form of electromagnetic waves. Magnetic field communications work reliably in harsh environments containing metal, water, soil, or collapsed building debris. [0003] figure 1 is a schematic diagram showing generation of a magnetic field region for magnetic field communication. When an AC voltage is applied between the feed points of a dipole antenna,...

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Problems solved by technology

However, the sensing signals detected by the sensors cannot be sent to the ground using traditional communication methods utilizing RFID / USN technology

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