Patent ID: 8854222
Filing Date: 2014-10-07
Classification: G08B

Abstract:
1. An electronic device for transmitting an emergency message, comprising: a storage unit for storing a reference voltage value; an output unit for outputting information; a smoke assessing unit for capturing air composition around the electronic device and assessing whether the air composition has changed; a current detecting unit for detecting an electrical current of the smoke assessing unit when the smoke assessing unit assesses that the air composition has changed; a converting unit for amplifying the electrical current and converting the amplified current to a converted voltage value, wherein the converting unit further comprises an amplifier and a resistor, the amplifier is configured for amplifying the electrical current, and the resistor is configured for generating a voltage drop for the amplified current, thereby obtaining the converted voltage value; a power management unit for comparing the converted voltage value with the reference voltage value from the storage unit; and a processing unit for judging whether the converted voltage value reaches the reference voltage value, controlling the output unit to output a signal including an emergency message when the converted voltage value reaches the reference voltage value.