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Intelligent monitoring method and system for falling of old people

An intelligent monitoring and elderly technology, applied to instruments, alarms, etc., can solve problems such as limited radar detection range and beam angle influence, achieve important medical significance and social value, and improve accuracy and stability

Active Publication Date: 2021-04-23
WEIFANG MEDICAL UNIVERSITY
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  • Summary
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AI Technical Summary

Problems solved by technology

[0003] In view of the above problems, the present invention proposes an intelligent monitoring method and system for falls of the elderly, which can deal with the monitoring of fall accidents during walking, and solve the problem that the radar detection range of a single fixed position in the existing fall monitoring equipment is limited by the beam angle and There is a problem that human body occlusion affects gesture recognition

Method used

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  • Intelligent monitoring method and system for falling of old people

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specific Embodiment 1

[0051] Such as figure 1 As shown, an intelligent monitoring method for falling of an elderly person comprises the following steps:

[0052] Step 1, using the radar to collect the human body posture echo data of the target in real time, and processing the human body posture echo data to obtain the time-frequency analysis result; wherein, the time-frequency analysis result includes a distance-time diagram and a Doppler-time diagram, That is, it contains the position information and Doppler information of the target;

[0053] An X-Y coordinate system is established with a fixed position as the origin. The radar includes radar A at the origin, radar B on the X axis, and radar C on the Y axis. Radar B and radar C move at a fixed interval along the coordinate axis Scan and collect at different locations; the fixed location is, for example, the top of the corner of the room, such as figure 2 As shown, the specific steps of using the radar to collect the target's human posture echo...

specific Embodiment 2

[0083] Such as image 3 As shown, an intelligent monitoring system for elderly falls includes a data collection terminal 1, a data processing terminal 2 and a display terminal 3; wherein, the data collection terminal 1 includes one or more human body posture collection and processing modules 11 and carrier components 12; The attitude acquisition processing module 11 comprises a human body attitude acquisition unit 111, a micro-processing unit 112 and a wireless communication unit W113, and the human body attitude acquisition unit 111 is used to collect human body attitude echo data in different orientations, and transmits to the micro-processing unit 112; the micro-processing unit 112 is used to process the human body posture echo data, and transmit the time-frequency analysis result obtained after processing to the data processing terminal 2 through the wireless communication unit W113; the carrier part 12 is used to carry the human body posture acquisition and processing modu...

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Abstract

The invention discloses an intelligent monitoring method and system for falling of old people, belongs to the field of intelligent monitoring, and aims at solving the problems that the radar detection range of a single fixed position in existing falling monitoring equipment is limited by a beam angle and human body shielding influences behavior recognition. According to the invention, the millimeter-wave radar arranged in a multi-point moving manner is used for collecting human body posture characteristic data from different directions to form three-dimensional detection, so that the problem that the detection range of the radar module at the single fixed position is limited by the wave beam angle is solved; the target limb parameter comparison method is used for analyzing and judging the time-frequency analysis result to judge whether the target falls down or not, the problem that the behavior recognition accuracy is affected due to human body shielding in an existing falling-down monitoring method is solved, the accuracy and the stability of the behavior recognition result are greatly improved, recognition of behaviors and postures of walking, standing, falling and the like of the elderly is achieved, and important medical value and social value are achieved.

Description

technical field [0001] The invention relates to the field of intelligent monitoring, in particular to an intelligent monitoring method and system for falling of the elderly. Background technique [0002] Under the background of population aging, patient care has brought great difficulties to families and hospitals; especially during the epidemic period, there was a shortage of medical staff, and patient care encountered great challenges. In daily life, falls and falls during walking can easily cause physiological and psychological problems for the elderly. However, traditional fall monitoring equipment has problems such as poor privacy protection, restricting the activities of the elderly, and being susceptible to electromagnetic interference. It is difficult to use them in hospitals or nursing homes. The place is popular. The 77GHz millimeter-wave radar has millimeter-level high resolution and can detect the patient's position through the curtain. The received data include...

Claims

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Application Information

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IPC IPC(8): G08B21/04
Inventor 冯翔王星皓张广腾常鑫姚非帆张升伟朱明旭陈一沛
Owner WEIFANG MEDICAL UNIVERSITY
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