At present, smoke alarms have the disadvantages of not being able to send accurate fire positioning information in time and low reliability. In this study, a self-contained smoke alarm with dual-mode positioning function, high-precision smoke particle detection and rapid response is designed. The MC20 chip with integrated positioning and communication module is used to provide accurate positioning data and send alarm information in time.A composite smoke detection module with high-precision ion smoke sensor and photoelectric smoke sensor as the core is designed to improve the detection accuracy of smoke particles and reduce the rate of false alarm. Making a phone call and sending SMS at the same time are used as alarm method. The contents of the SMS are the positioning data and positioning link of the destination, and the link can directly jump to the terminal navigation map.
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