Method for detecting falls and a fall detector.

A technology for detectors and users, applied in the direction of instruments, applications, sensors, etc., can solve the problems of large moving range, no detection rate, etc.

Inactive Publication Date: 2015-11-11
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the wrist is capable of complex movement patterns and has a large range of movement, which means that existing fall detection methods based on analyzing measurements from accelerometers are useful in minimizing the number of false alarms for this type of fall detector. while not providing a high enough detection rate

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  • Method for detecting falls and a fall detector.
  • Method for detecting falls and a fall detector.
  • Method for detecting falls and a fall detector.

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Embodiment Construction

[0044] As described above in the Background section, it has been found that existing fall detection methods based on the analysis of measurements from movement sensors in wrist-worn fall detectors are effective in limiting false alarms due to movement of the wrist. While not providing a sufficiently high detection rate, the movement of the wrist occurs during what is referred to herein as an "Activity of Daily Living" (ADL) that is unrelated to the user's fall Typical movements of the user's wrist that occur during everyday activities such as walking and sitting.

[0045] It is known that when a person falls suddenly, the course of the fall, from loss of balance to impact with the ground and (possible) inability to get up after the fall, results in a response in the user's ANS that can be expressed as Changes in the user's skin conductance, skin temperature, and / or heart rate are measured as a result of the stress. However, movements that may appear to be falls based on analy...

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Abstract

There is provided a method of detecting a fall by a user, the method comprising detecting whether a user has potentially experienced a fall event from measurements of the movements of the user; on detecting a potential fall event, determining the activity level of the user and a measure of a autonomic nervous system, ANS, response for the user associated with the potential fall event; comparing the determined activity level and the measure of the ANS response to a user profile relating activity level and ANS response for the user; and determining whether the potential fall event is a fall based on the result of the comparison.

Description

technical field [0001] The present invention relates to a method for detecting a fall of a user and a fall detector implementing the method, and in particular to a method for detecting a fall and a fall detector providing increased reliability of fall detection . Background technique [0002] Falls affect millions of people each year and cause significant injury, especially among older adults. In fact, falls have been estimated to be one of the top three causes of death among older adults. A fall is defined as a sudden, uncontrolled and involuntary downward displacement of the body to the ground, followed by an impact, after which the body rests on the ground. [0003] A Personal Help Button (PHB) is available, which requires the user to press a button to summon help in an emergency. However, if the user suffers a severe fall (eg if they are knocked out), the user may not be able to press the button, which may mean that no assistance arrives for a significant period of ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/04A61B5/11G08B25/00G08B29/26
CPCA61B5/4035A61B5/1117A61B2562/0219G08B21/043G08B21/0446G08B21/0453G08B25/001G08B29/26A61B5/01A61B5/024A61B5/441A61B5/7221
Inventor P·克基基安W·张
Owner KONINKLJIJKE PHILIPS NV
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