| 摘要 |
It is therefore a particular object of the present invention to provide the means of reducing cooking related fire hazards without compromising usability of electric stoves. The present invention is designed to automatically shut down the burners of electrical stoves if the stove is left unattended for longer than a preprogrammed period of time. A combination of a programmable timing device and a motion sensor is used for this purpose. The motion sensor monitors any human movements in the surroundings of the stove. Should the motion sensor detect any inactivity in the immediate surroundings of the stove, the timing relay is activated to cut OFF the power supply to the stove burners after a preprogrammed period of time elapses. In the case that the motion sensor detects human movements around the stove, the device will turn ON the stove's burners again until another period of inactivity is detected and the cycle will be repeated.
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