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Method and device for correcting acceleration sensor axis information

A technology of acceleration sensor and information correction, applied in the direction of sensor, measurement of acceleration, inertial sensor, etc., can solve the problem of judgment of wrong action, etc., and achieve the effect of avoiding wrong action

Inactive Publication Date: 2006-05-17
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in such devices, since the measurement results of actions and postures, that is, the output characteristic curves of the sensors, are different for the person to be measured depending on the part where the device is worn, it is difficult to perform the measurement when the device is worn. If the judgment of the above-mentioned action, etc. is performed at a position other than the preset mounting position, there is a problem that the judgment of the above-mentioned action, etc.

Method used

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  • Method and device for correcting acceleration sensor axis information
  • Method and device for correcting acceleration sensor axis information
  • Method and device for correcting acceleration sensor axis information

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Experimental program
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Embodiment approach 1

[0043]FIG. 1 is a diagram showing the appearance of an action or posture detection device 100 in this embodiment. This action or posture detection device 100 is a device for identifying the action and posture of a person wearing the device (hereinafter referred to as "wearer") using a built-in acceleration sensor. This device has the shape of a business card-sized slightly thin cuboid (for example, 5 cm (width) x 8 cm (length) x 1.5 cm (thickness)) shape, with a button group 101, a liquid crystal panel 102, a correction trigger button 103, a speaker 104, and a microphone 105 . Furthermore, the action or posture detection device 100 has a fixing belt 106 and the like for being worn on a human body (for example, being worn on a belt for fixing).

[0044] The button group 101 is a button pressed by the wearer or the user (guardian) to determine the position where the device 100 is worn. For example, when the device 100 is worn on the left waist of the wearer, the "left" button ...

Embodiment approach 2

[0064] In the first embodiment described above, the example in which the parameters are corrected by receiving the pressing of the button corresponding to the wearing position from the wearer was described. Embodiments of the parameters are then corrected by collecting acceleration data on predetermined patterns of action and evaluating the acceleration data.

[0065] FIG. 6 is a block diagram showing the functional configuration of the action or posture detection device 200 in this embodiment. This device 200 has an acceleration sensor unit 11 , an evaluation unit 12 , a parameter correction unit 14 , a parameter storage unit 15 , a correction trigger unit 31 , and a wearing position determination unit 32 . Hereinafter, the same reference numerals are assigned to the same functional configurations as those in the first embodiment described above, and description thereof will be omitted.

[0066] The correction trigger part 31 has a button switch (for example, corresponding t...

Embodiment approach 3

[0075]In Embodiment 2 above, an example in which parameters are corrected by collecting acceleration data on a predetermined action pattern after pressing a button switch (correction trigger button) and evaluating the acceleration data is described. After the calibration trigger button is pressed, the wearer is given predetermined voice guidance, and the wearer acts according to the voice guidance to collect acceleration data and similarly calibrate the parameters.

[0076] FIG. 8 is a block diagram showing the configuration of the action or posture detection device 300 in this embodiment. This device 300 has an acceleration sensing unit 11 , an evaluation unit 12 , a parameter correction unit 14 , a parameter storage unit 15 , a correction trigger unit 31 , a wearing position determination unit 32 , and an audio guide unit 41 . In addition, below, the same code|symbol is attached|subjected to the same function structure as said Embodiment 2, and the description is abbreviate|...

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Abstract

An acceleration sensor axis information correction device and a correction method thereof, which correct parameters representing each acceleration direction in an acceleration sensor built in a specific device. The device has: an acceleration sensing part (11) for detecting acceleration; an evaluation part (12), which uses the change characteristic curve of the acceleration obtained from the acceleration sensor when the wearer moves to determine action and posture; a parameter storage part (15), Store the parameters used when judging in the evaluation section (12); the correction trigger section (31), once detected that the wearer presses the correction trigger button, will send a message to the acceleration sensor section (11) and the wearing position judging section. (32) Send a signal to start correcting parameters; Parameter correction unit (14), based on the result selected in the wearing position selection unit (13), reads the parameters stored in the parameter storage unit (15), implements the matching with the wearing position After corresponding corrections, the corrected parameters are output to the evaluation unit (12).

Description

technical field [0001] The present invention relates to a device having an acceleration sensor for detecting a person's action and posture (body state), and more particularly to a technique for correcting parameters representing each acceleration direction of the acceleration sensor. Background technique [0002] Against the backdrop of the advent of an aging society in recent years, guardianship of the elderly has attracted attention. In particular, it is important to accurately grasp the behavior of elderly people and dementia patients for monitoring, and various techniques have been proposed. In addition, a device that tracks the behavior of these elderly people and reports abnormal behavior to the person and the guardian is considered essential from the viewpoint of guardianship. In addition, not limited to the elderly, if the behavior pattern can be grasped by measuring or analyzing the behavior and posture of the person, better control of lighting and air conditioning...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/11A61B5/00A63B23/02G01C19/00G01P15/00G01P21/00
CPCA61B5/1116A61B5/1118A61B5/1123A61B2503/08A61B2560/0223A61B2562/0219A63B23/0244G01C22/006
Inventor 山本浩司井上茂之田中真司白石孝子
Owner PANASONIC CORP