BURYING TYPE SENSOR NODE FOR DETECTING DYNAMICCHARATERISTIC OF STRUCTURE

摘要

The present invention relates to an embedded type sensor node for detecting behavior characteristics of a structure and comprises a capsule which is installed on one inner side of the structure and has a receiving space inside; a piezoelectric element which is installed on one outer side of the capsule and produces electricity when external force is added; a strike member which is installed on inner one side of the capsule and strikes the piezoelectric element while being moved according to the vibration of the structure; at least one detection module which is installed at each location of the structure and detects the behavior characteristics of the structure and generates a detection signal; a communication module which is located which the receiving space of the capsule and electrically connected to an external central terminal with one of a wire mode and a wireless mode; a control module which is installed within the receiving space of the capsule, is electrically connected to the detection module and the communication module, and transmits behavior characteristic data of the structure according to the detection signal applied from the detection module to the external central terminal through the communication module; and a power supply module which is electrically connected to the piezoelectric element, the detection module, the communication module, and the control module, supplies power to the detection module, the communication module, and the control module, and is charged as electric power is applied from the piezoelectric element. According to the present invention, the embedded type sensor node increases the lifespan of a power supply part by charging the power supply part with the electric power generated when the piezoelectric element is pressed according to the vibration of the structure and easily performs maintenance management of the power supply part by increasing a replacement period of the power supply part. [Reference numerals] (20) Piezoelectric element;(30) Strike member;(40) Detection part;(41) Temperature sensing part;(42) Gas sensing part;(43) Corrosion sensing part;(44) Humidity sensing part;(50) Communication part;(60) Control module;(70) Power supply part