Portable alarm apparatus
The invention discloses a portable alarm apparatus disposed on an object and including an acceleration sensor, a wireless communication module, and a processor. The acceleration sensor senses an acceleration of the object every a time difference. The processor is electrically connected to the accele...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a portable alarm apparatus disposed on an object and including an acceleration sensor, a wireless communication module, and a processor. The acceleration sensor senses an acceleration of the object every a time difference. The processor is electrically connected to the acceleration sensor and the wireless communication module. The processor calculates an acceleration variation rate according to the time difference and a variation of the acceleration of the object. According to the acceleration variation rate, the processor selectively controls the wireless communication module to communicate with a communication apparatus. |
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