Elderly fall monitoring method based on mems sensor
An elderly, sensor technology, applied in instruments, alarms, etc., can solve the problems of single data source, low system accuracy, user injury, etc., and achieve the effect of simple operation, convenient use and small size
Active Publication Date: 2018-03-20
FUZHOU UNIV
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Problems solved by technology
At present, the fall monitoring algorithm for the elderly mainly uses the three-axis acceleration data of the human body to judge the occurrence of falls. This method has a single data source, which makes the accuracy of the system not high, and the missed judgment will cause great harm to users.
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[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0024] This implementation provides a method for monitoring falls of the elderly based on MEMS sensors, such as figure 1 shown, including the following steps:
[0025] Step S1: provide a fall monitoring device to be worn on the waist of the elderly, the fall monitoring device includes a MEMS sensor signal acquisition system for collecting acceleration and angular velocity signals around the center of gravity of the human body;
[0026] Step S2: The fall monitoring device includes a wireless communication module, and the wireless communication module collects the MEMS sensor signal acquisition system to a mobile terminal for signal transmission through wireless transmission;
[0027] Step S3: The mobile terminal recognizes the falling behavior of the elderly by using a joint discrimination method based on acceleration and angular velocity based on the r...
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The invention relates to an old people falling monitoring method based on an MEMS sensor. The old people falling monitoring method includes the following steps that 1, a falling monitoring device is provided and worn on the waist of an old person, and the falling monitoring device comprises an MEMS sensor signal collecting system used for collecting accelerated speed and angular speed signals around the gravity of the human body; 2, the falling monitoring device comprises a wireless communication module, and the wireless communication module transmits signals collected by the MEMS sensor signal collecting system to a mobile terminal in a wireless transmission mode; 3, the mobile terminal recognizes the falling behaviors of old people by using the method of accelerated speed and angular speed combined judgment according to the received signals. The method is easy to operate, the hardware equipment used is low in cost, the recognition rate of falls of old people is high, and the application requirement for old people falling monitoring can be met.
Description
technical field [0001] The invention relates to the field of elderly monitoring equipment, in particular to a MEMS sensor-based method for monitoring falls of the elderly. Background technique [0002] There is a large elderly population in my country, and falls can lead to serious consequences such as fractures, soft tissue injuries, and psychological trauma in the elderly, and are one of the important causes of disability, disability, and death in the elderly. At the same time, the injuries and medical costs caused by the falls of the elderly are not only related to the severity of the impact during the fall, but also largely depend on the length of the rescue response time. Quickly and effectively discovering and treating the elderly who have fallen is an effective means to reduce the casualty rate of the elderly. For the fall monitoring system, its function is to distinguish the daily activities of the elderly from the fall behavior. At present, the fall monitoring alg...
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IPC IPC(8): G08B21/04
CPCG08B21/0446
Inventor 李玉榕杜民陈建国张云浦
Owner FUZHOU UNIV