| 摘要 |
PURPOSE: A fire detector for vehicle is provided to enhance the reliability and accuracy of the fire detection and to sense the combustion wavelength band of the car fuel. CONSTITUTION: The IR sensor(130) and thermopile sensor(140) sense the wavelength band generated by burn of the car fuel. The thermopile sensor senses 7~30μm wavelength band of the far-infrared bandwidth and the IR sensor senses 0.8~1.0μm wavelength band of the nearly infrared rays bands. The ultraviolet sensor(150) senses 100~500nm wavelength band of the visible-ray band. The compare output circuit part(160) confirms the fire was generated in an inside-vehicle to compare the IR sensor, and the thermopile sensor and the sensing signal level outputted from the ultraviolet sensor. The compare output circuit part generates the final fire detection output signal through the switching circuit and blocks the malfunction. |
