A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anti-freezing systems for preventing freezing on walkway and method for controlling thereof
The present invention relates to a method and a system for preventing a foothold installed on a walkway or stairs from freezing, which measure a temperature of the air around the foothold, and a temperature and humidity of the foothold, calculate a dew point of the air around the foothold based on the measured temperature of the air and the temperature and humidity of the foothold, determine the possibility of freezing to occur on the foothold based on the predetermined reference temperature for preventing freezing, the measured foothold temperature, and the calculated dew point, determine the duty ratio of a pulse width modulation (PWM) signal, which controls the turning on or off of a heat wire engaged with the foothold based on the measured foothold temperature when it is determined that there is a possibility that freezing will occur, generate a PWM signal having the determined duty ratio, repeat the turning on or off of the heat wire in accordance with the generated PWM signal, increase the foothold temperature to over a certain temperature, and prevent freezing from occurring on the foothold in advance.
보행로 또는 계단에 설치된 발판의 결빙 방지 방법 및 결빙방지시스템에 관한 것으로, 발판 주변의 공기온도, 발판온도 및 습도를 측정하고, 측정된 공기온도, 발판온도 및 습도에 기초하여 발판 주변 공기의 이슬점을 산출하고, 미리 결정된 결빙방지 기준온도, 측정된 발판온도, 및 산출된 이슬점에 기초하여 발판 상에 결빙이 발생할 가능성을 결정하고, 결빙이 발생할 가능성이 있다고 결정된 경우 측정된 발판온도에 기초하여 발판에 결합된 열선의 온오프를 제어하는 PWM(Pulse Width Modulation) 신호의 듀티비(duty ratio)를 결정하고, 결정된 듀티비를 갖는 PWM 신호를 생성하고, 생성된 PWM 신호에 따라 열선의 온오프를 반복함으로써, 발판의 온도를 일정 온도 이상으로 상승시켜 발판 상에 결빙이 발생하는 것을 미연에 방지할 수 있다.
Anti-freezing systems for preventing freezing on walkway and method for controlling thereof
The present invention relates to a method and a system for preventing a foothold installed on a walkway or stairs from freezing, which measure a temperature of the air around the foothold, and a temperature and humidity of the foothold, calculate a dew point of the air around the foothold based on the measured temperature of the air and the temperature and humidity of the foothold, determine the possibility of freezing to occur on the foothold based on the predetermined reference temperature for preventing freezing, the measured foothold temperature, and the calculated dew point, determine the duty ratio of a pulse width modulation (PWM) signal, which controls the turning on or off of a heat wire engaged with the foothold based on the measured foothold temperature when it is determined that there is a possibility that freezing will occur, generate a PWM signal having the determined duty ratio, repeat the turning on or off of the heat wire in accordance with the generated PWM signal, increase the foothold temperature to over a certain temperature, and prevent freezing from occurring on the foothold in advance.
보행로 또는 계단에 설치된 발판의 결빙 방지 방법 및 결빙방지시스템에 관한 것으로, 발판 주변의 공기온도, 발판온도 및 습도를 측정하고, 측정된 공기온도, 발판온도 및 습도에 기초하여 발판 주변 공기의 이슬점을 산출하고, 미리 결정된 결빙방지 기준온도, 측정된 발판온도, 및 산출된 이슬점에 기초하여 발판 상에 결빙이 발생할 가능성을 결정하고, 결빙이 발생할 가능성이 있다고 결정된 경우 측정된 발판온도에 기초하여 발판에 결합된 열선의 온오프를 제어하는 PWM(Pulse Width Modulation) 신호의 듀티비(duty ratio)를 결정하고, 결정된 듀티비를 갖는 PWM 신호를 생성하고, 생성된 PWM 신호에 따라 열선의 온오프를 반복함으로써, 발판의 온도를 일정 온도 이상으로 상승시켜 발판 상에 결빙이 발생하는 것을 미연에 방지할 수 있다.
Anti-freezing systems for preventing freezing on walkway and method for controlling thereof
보행로의 결빙을 방지하기 위한 결빙방지 시스템 및 그것의 제어방법
CHOI JAE WON (author)
2020-05-28
Patent
Electronic Resource
Korean
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