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Fall detectors and a method of detecting falls

A detector and sensor technology, applied in special sensors, fall detectors and the use of multiple sensors to detect falls, can solve problems such as difficult implementation, difficulty in reliable detection of falls, low sampling rate, etc.

Inactive Publication Date: 2012-05-23
LIFELINE SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, each of these types of multiple sensor fall detectors has their own disadvantages
For example, gyroscopes provide highly reliable data, but due to their size and power consumption, they are impractical for small body-worn portable devices
Air pressure sensors can be used to provide altitude information (often information about changes in altitude), but they only provide this altitude information at a low sampling rate, making reliable detection of falls somewhat difficult
Furthermore, if the fall detector is waterproof, it means that it is difficult to mount the air pressure sensor in the fall detector since the air pressure sensor requires a direct and sufficient air flow requiring a specialized hydrophobic membrane and a dedicated pressure measurement chamber. middle

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  • Fall detectors and a method of detecting falls
  • Fall detectors and a method of detecting falls
  • Fall detectors and a method of detecting falls

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Embodiment Construction

[0029] Although the invention will be described herein with reference to a fall detector worn by a person and detecting a fall of that person, it will be appreciated that the fall detector and method of detecting a fall according to the invention can be applied to alternative uses , such as detecting a fall of an object, such as a hard drive or other sensitive electronic equipment.

[0030] The present invention provides a fall detector comprising an air flow sensor for providing a measurement indicative of a change in vertical velocity and / or height of the fall detector. In a preferred embodiment, the fall detector comprises another sensor or sensors, eg a sensor for measuring or a sensor providing a measurement indicative of acceleration (eg an accelerometer). In these embodiments, measurements from the airflow sensor are used to determine height change and / or vertical velocity of the fall detector and are processed in combination with acceleration measurements to determine ...

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Abstract

There is provided a fall detector for detecting falls of a user or an object to which the fall detector is attached, characterized in that the fall detector comprises an air flow sensor for providing measurements indicative of vertical velocity and / or changes in altitude of the fall detector.

Description

technical field [0001] The present invention relates to fall detectors and methods of detecting falls, and in particular to fall detectors and methods of detecting falls using a plurality of sensors. The invention also relates to specialized sensors that can be used in fall detectors and other devices. Background technique [0002] Falls are a significant problem that can lead to morbidity and mortality when caring for the elderly. From a physical standpoint, falls cause injury, while from a psychological standpoint, falls create a fear of falling, which in turn leads to social isolation and depression. [0003] Fall detection systems have been developed that provide automatic and reliable means of detecting when a user has fallen. If a fall is detected, the system sends an alert to the user to call for help. This ensures that the user will take adequate measures should a fall occur. [0004] Fall detectors are usually based on accelerometers (usually 3D accelerometers t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/11G01F1/692G01P13/00G08B21/02
CPCA61M5/16886A61B5/681G01P5/12A61M2205/3368A61M15/00G01P13/006A61M2205/332A61M2016/0021A61M2205/3375A61B2562/0271A61B5/6831A61M5/14G08B21/0446A61M2205/3334A61B5/1117A61B2562/0219G01P5/10B05B17/0615B05B17/0638B05B17/0653Y10T29/49117Y10T29/49128A61M11/003A61M11/042A61M16/0003A61M11/005A61M16/104A61M16/18A61M2016/0027A61M2016/003A61M2205/50A61M2205/82
Inventor H·巴尔杜斯J·R·哈尔曾S·施伦博姆R·德克尔P·德格拉夫N·J·A·范费恩A·T·J·M·席佩尔
Owner LIFELINE SYST INC
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