Intelligent alarm system for falling of android platform-based MEMS/magnetic sensor/GPS and method thereof

Abstract

The invention discloses an intelligent alarm system for falling of android platform-based MEMS / magnetic sensor / GPS and a method thereof. The system comprises a three-axis acceleration sensor, a magnetic sensor, a gyroscope, a GPS, a data analysis module, a first falling judging module, a second falling judging module and an alarming module, wherein the three-axis acceleration sensor is used for collecting three-axis acceleration data of a mobile phone; the magnetic sensor is used for collecting the geomagnetic field strength data on the position of the mobile phone; the gyroscope is used for collecting three-axis angular rate data of the mobile phone; the GPS is used for acquiring the position information of a carrier; the data analysis module is used for acquiring a gesture of the mobile phone and a real-time gesture rotating matrix according to the data of the three-axis acceleration sensor, the gyroscope and the magnetic sensor; the first falling judging module is used for primarily judging if falling; the second falling judging module is used for finlly judging if falling; the alarming module is used for sending the position and body state of the carrier to the medical establishment and relatives. On the basis of the traditional gesture resolving algorithm and specific to the special use occasion of falling detection, the invention provides a new self-adaption parameter-calling gesture resolving algorithm for realizing accurate detection for falling.

Description

technical field [0001] The invention relates to the technical field of sensor detection, in particular to an intelligent fall alarm system and method based on Android platform MEMS / magnetic sensor / GPS. Background technique [0002] From the research results at home and abroad now, there are various methods for calling the police when the elderly fall, and mature products of some companies have appeared on the market. According to the different forms and sources of fall information obtained during the development and use of each product, the core methods can be divided into the following three categories: [0003] 1. The fall alarm device independently activated by the elderly: the elderly carry a fall alarm device independent of the mobile phone. When the old man falls down, he presses the button independently to call the police, and in the background, the professionals realize the forwarding and management of the alarm signal, such as immediately notifying the relatives, f...

AI Technical Summary

Problems solved by technology

[0006] There are certain deficiencies in the above various methods, among which method 1 must carry an independent alarm device and requires the elderly to press the alarm button independently to realize automatic alarm; method 2 requires related video detection equipment. Time and space are limited; method 3 only uses the accelerometer as a sensor, the acquired data is very limited, and the false alarm rate is high

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