| 摘要 |
PURPOSE: A temperature measuring system for heating or cooling in a closed indoor space is provided to prevent energy waste, and to keep the closed indoor space agreeable by detecting the indoor temperature accurately and adjusting the temperature finely. CONSTITUTION: A temperature measuring system comprises a power supply unit(100) applying power, a power switch unit(200) turning on and off the power supply unit, a temperature detecting sensor(300) installed at the height of 0.5 to 1m from the bottom to measure temperature without contact within the range of -50 to 80 deg.C, a low frequency filter(400) filtrating signals from the temperature measuring sensor and passing the frequency of 4 to 5 Hz, a voltage amplifier(500) amplifying the signals from the low frequency filter to gain the large output voltage, a signal adjusting unit(600) regulating the signals from the amplifier with a four-point approximated fragment hybrid IC, an A/D(analog to digital) converter(700) converting the signals from the signal adjusting unit into the digital signals, a data processing unit(800) converting the digital signals from the A/D converter into readable temperature data with applicable program, a memory unit(900) memorizing applicable program from the data processing unit and the operating system for initializing the system, an output unit(1000) displaying temperature data from the data processing unit, an input unit(1100) checking temperature from the output unit and keeping proper temperature by inputting data, a breaker(1200) stopping heating in case of actual temperature to be over input temperature and stopping cooling in case of actual temperature to be below input temperature, and an interface unit(1300) transmitting data from the data processing unit and the input unit.
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