Abstract:
PURPOSE: An absolute position detecting system is provided to implement a stable operation by facilitating installation and maintenance. CONSTITUTION: Multiple pattern parts have one or more first and second patterns. The first and second patterns have different light reflectivity. A pattern scanning part (120) measures each light reflectivity. A data processing part (130) respectively recognizes the multiple pattern parts. A position detecting part (140) detects an absolute position of the pattern part.
Abstract:
PURPOSE: A gauge conversion monitoring system is provided to determine malfunction generated during gauge conversion by monitoring stress state applied on a rail. CONSTITUTION: A gauge conversion monitoring system comprises a sensor part, a signal processing part(50), and a monitoring part(60). A sensor is attached on the sensor part by partitioning each rail of a ground conversion facility(20) into sensor lines(S1~S5). The sensor part receives sensing signals measured by the sensor part and digital-processes the sensing signals. The monitoring part checks gauge conversion information through signals detected in the signal processing part and monitors the abnormality of a gauge adjusting device.
Abstract:
본 발명은 열차 도착 알림 시스템에 관한 것으로서, 더욱 상세하게는 열차가 사정에 의해 지연될 경우에도 정확하게 도착시간을 계산할 수 있으며, 이를 승객이 직접 도착 알림 시간을 설정하도록 하여 개개인에 맞게 적절한 시간에 도착을 알려주도록 하여 하차를 미리 준비할 수 있을 뿐만 아니라, 마중 나오는 사람에게도 도착 알림 메시지를 전송하도록 함으로써, 마중 나오는 사람과 승객 모두 기다리는 시간을 줄여주도록 하는 열차 도착 알림 시스템에 관한 것이다. 상기한 목적을 달성하기 위한 본 발명은 열차의 운행을 관리하는 서버와 상기 서버와 네트워크를 통하여 통신하여 도착을 알려주는 단말기로 이루어지는 열차 도착 알림 시스템에 있어서, 상기 서버는 열차 스케줄을 포함하는 운행 정보가 저장되는 운행 데이터 베이스와, 승객의 정보가 저장되는 승객 데이터 베이스와, 열차의 위치를 감지하는 열차 위치 모니터링 모듈과, 상기 단말기와 통신하는 제1송수신모듈과, 상기 운행 데이터 베이스의 열차 스케줄과 열차 위치 모니터링 모듈의 열차 위치를 통하여 열차의 도착시간을 계산하는 도착시간 계산 모듈을 포함하여 이루어지는 것을 특징으로 한다.
Abstract:
An embodiment of the present invention relates to a concrete curing temperature measuring device. The purpose of the present invention is to provide a concrete curing temperature measuring device in a repetitive use type using an optical fiber FBG sensor, which can repetitively use an FBG sensor at a high price and perform concrete curing temperature measurement at a low cost, not through a method of burying the FBG sensor under concrete but through a method of using the FBG sensor by being combined into a hole on the concrete only when measuring temperature. Disclosed is a concrete curing temperature measuring device in a repetitive use type using an optical fiber FBG sensor, which comprises a sensor protective pipe which is detachably combined into a hole formed on concrete: an FBG sensor module which senses the curing temperature of concrete by being combined with the sensor protective pipe; and a protective cap which is combined with the top end of the sensor protective pipe.
Abstract:
PURPOSE: A self-generation safety shoes and a line fraud prevention system using the same are provided to prevent a worker wearing the shoes from a line fraud accident, wherein the shoes does not require an additional energy source. CONSTITUTION: A self-generation safety shoes comprises a heel in which a groove is formed and an automatic electric power generation device. The automatic generation device comprises a frame that is inserted into the groove of the heel and has an elasticity; a power generation module that is installed in the frame; a signal transmitting and receiving module that is installed in the frame and is electrically connected to the power generation module; and an antenna portion that is attached on a side of the frame and is electrically connected to the signal transmitting and receiving module. A line fraud prevention system comprises the automatic generation safety shoes and a central control chamber. The generation module includes a piezoelectric element that is installed in the frame. The signal transmitting and receiving module comprises a rectifier (131) that is electrically connected to the piezoelectric element, an electricity storing part (132) that is electrically connected to the rectifier, an RFID tag (133) that is electrically connected to the electricity storing part, and a warning generator. The antenna part comprises an RFID signal transmitting antenna (141) that is electrically connected to the RFID tag and a warning signal receiving antenna (142) that is electrically connected to the warning generator. The central control chamber comprises a warning transmission unit that transmits a warning sign to the warning sign receiving antenna and an RFID reader that receives information of a worker from the RFID signal transmitting antenna.