WO2008022727A1 - A garment for monitoring posture - Google Patents
A garment for monitoring posture Download PDFInfo
- Publication number
- WO2008022727A1 WO2008022727A1 PCT/EP2007/007155 EP2007007155W WO2008022727A1 WO 2008022727 A1 WO2008022727 A1 WO 2008022727A1 EP 2007007155 W EP2007007155 W EP 2007007155W WO 2008022727 A1 WO2008022727 A1 WO 2008022727A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- garment
- fiber
- transmissivity
- posture
- control circuitry
- Prior art date
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 31
- 239000013307 optical fiber Substances 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 208000012514 Cumulative Trauma disease Diseases 0.000 description 2
- 206010038584 Repetitive strain injury Diseases 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 208000025940 Back injury Diseases 0.000 description 1
- 206010073713 Musculoskeletal injury Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 210000001145 finger joint Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000013308 plastic optical fiber Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 208000037975 work-related injury Diseases 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1071—Measuring physical dimensions, e.g. size of the entire body or parts thereof measuring angles, e.g. using goniometers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/6804—Garments; Clothes
- A61B5/6805—Vests
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35338—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
- G01D5/35341—Sensor working in transmission
- G01D5/35345—Sensor working in transmission using Amplitude variations to detect the measured quantity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/3537—Optical fibre sensor using a particular arrangement of the optical fibre itself
- G01D5/35374—Particular layout of the fiber
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0261—Strain gauges
- A61B2562/0266—Optical strain gauges
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1116—Determining posture transitions
Abstract
A garment (10) for monitoring the posture of an individual is disclosed. The garment is arranged to receive a sensor system (12) comprising a light source (14) coupled to an optical fiber (16) which is in turn coupled to a light sensor (18) and control circuitry (20) arranged to, in use, measure the transmissivity of the optical fiber. The optical fiber is treated along its length so that the transmissivity of the fiber varies according to the posture of the individual wearing the garment.
Description
A garment for monitoring posture
The present invention relates to a garment for monitoring posture.
It has become important for many reasons to monitor the posture of an individual, particularly when the individual is in a seated position. For example, musculoskeletal injury due to poor seated posture makes up a considerable proportion of work related injury and disability. Monitoring of posture enables either a clinician or the individual themselves to assess whether the individual may be at risk of say, back injury or repetitive strain injury (RSI) due to incorrect posture; or alternatively to control the posture of the individual by providing feedback indicating whether the individual has adopted a correct or an incorrect posture
Some approaches to monitoring posture of an individual include applying sensors such as strain gauges to the skin of the individual, or alternatively cameras mounted in a room can monitor the individual for example, in their workplace.
The former body-mounted technologies can be prohibitively expensive, as well as requiring placement of sensors on the skin surface, which can be uncomfortable and obtrusive.
The latter infrastructure-based technologies require the installation of calibrated cameras or other equipment and again this can be expensive and obtrusive, as well as requiring either skilled assessment of the images and/or complex image processing software.
A third approach to monitoring posture has involved attempts to incorporate sensors into a garment worn by an individual.
US 4,730,625, Fraser discloses a snug-fitting shirt made of a stretchable material including pockets each incorporating a posture sensor. The posture sensor comprises semiconductor strain gauges so that when a subject bends out of normal posture, a strain is applied to the strain gauges. The electrical signals produced by the strain gauges are used to determine the degree that the subject has bent away from the normal posture.
CONFIRMATSON COPY
WO 99/13306 discloses an item of clothing including light emitting device and a light receiving device located at opposite ends of a passage filled with a material allowing light from the light emitting device to reach the light receiving device. The walls of the passage and the material within the passage are arranged to allow the passage to bend or deform in response to application of a force to the walls of the passage so that bending or deformation of the passage affects the amount of light received by the light receiving device from the light emitting device and thereby can be used to provide an indication of the deformation or bending of the passage.
However, none of the sensors for these garments provide the required flexibility or reliability to make such garments commercially viable. For example, resistive sensors are stiff, too short, and prone to drift. Other sensors such as accelerometers, magnetometers, and gyroscopes are bulky and require extensive processing to deduce bend, whereas conductive polymer coatings are non-repeatable and not precise enough to measure small bends required for assessing spinal posture.
The present invention provides an improved garment for monitoring the posture of an individual, the garment being arranged to receive a sensor system comprising a light source coupled to an optical fiber which is in turn coupled to a light sensor and control circuitry arranged to, in use, measure the transmissivity of said optical fiber, the optical fiber being treated along its length so that the transmissivity of said fiber varies according to the posture of said individual wearing the garment.
The invention provides a garment including a single sensor for the purposes of measuring and monitoring spinal posture.
In one embodiment the fiber is sewn to the exterior surface of the garment or alternatively, the garment includes a tunnel and the fiber is channeled through the tunnel. This incorporates the sensor into the garment in such a way as to allow spinal elongation and recovery during bending.
Various embodiments of the invention include control circuitry arranged to record a threshold which is used either for classifying spinal posture and/or for providing effective feedback to the individual in relation to their posture through a suitable indicator.
The garment may be one of a tight or a loose fitting construction.
Preferably, the garment is formed of an elastic fabric.
Various embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings, in which:
Figure 1 is a schematic view of a garment including a sensor according to a preferred embodiment of the present invention; and
Figure 2 is a detailed view of a portion of the sensor of Figure 1.
Referring now to Figure 1, in the preferred embodiment of the present invention, a garment 10 includes an optical bend sensor system 12 for use in wearable posture monitoring. In the embodiment, the garment is a close-fitting garment and preferably a highly elastic compression garment, for example, a vest from the Nike Pro range produced by Nike Inc..
In this embodiment, the sensor system 12 is employed to measure overall spinal flexion and is disposed to run along the individual's spine when the garment is worn. As such, this garment is of particular use for measuring the posture of computer workstation users. It will be appreciated, however, that with different sensor configurations, this garment could find alternative applications for assessing and/or controlling upper body posture and also that similar garments could be produced for the arms and/or legs with appropriate modification for alternative posture or kinematic measurement applications ranging from biomechanical evaluation to producing controllers for computer gaming.
The sensor system 12 comprises a LED 14, an optical fiber 16 coupled at one end to the LED, and at its other end to a light-sensitive resistor 18. (It will be seen that any suitable light
emitter and/or light sensing circuitry suitably coupled to the fiber could be used.) In the illustrated example, the resistor 18 is connected to controlling circuitry 20 located on the vest. This circuitry 20 measures the level of light incident on the resistor 18 in a conventional manner. In the illustrated embodiment, the LED 14 is independently powered and controlled, however, it will be seen that in alternative implementations, the LED could also be powered and controlled from the circuitry 20.
The functionality of the circuitry 20 beyond this simple measurement is a matter of application requirements. So for example, the circuitry could be as simple as an analog circuit which drives a sounder, light indicator, vibrator or other indicator device appropriately when the signal received by the resistor 18 lies inside/outside an acceptable threshold for more than a given period of time within a longer period of time, say 5 minutes within an hour.
Alternatively or in addition, the circuitry could include a data logger for tracking the values measured by the system 12 over a period. The circuitry could then include some data communications circuitry, for example, removable storage medium, wireless or wired connection, enabling recorded data to be transferred to a separate computing device (not shown) for further analysis of the temporal posture pattern of the individual.
Again, alternatively or in addition the circuitry 20 could be programmable to receive calibration data relating to an individual. So, for example, a first reading can be taken with the sensor system 12 in operation when the individual wearing the garment has adopted a "good seated posture" and a second reading when the individual wearing the garment has adopted a slumped or "poor seated posture". It has been found that the transmissivity of the fiber from the first reading will be distinctly higher than for the second reading, although this may differ in level from wearer to wearer. Preferably, a first threshold below the first reading; and a second threshold below the first threshold and above the second reading are chosen and stored in the circuitry 20 for later indicating to the individual whether they are adopting either a good and/or bad seated posture.
Clearly, for commercial applications, the controlling circuitry would need to be produced in as robust a format as possible and could for example be implemented in a sealed integrated
unit using an inductively charged power source and perhaps wireless communications. Similarly, the LED and resistor couplings would need to be housed and connected to the circuitry 20 in a robust fashion; and/or these could be releasably attached to the garment and/or fiber to allow the garment to be washed as required.
Optical fibers are well known and apart from their use in telecommunications, they have also been employed as indicators of curvature in a body, such as a structural beam, to which they are affixed, for example, as disclosed in K.S.C. Kuang, W.J. Cantwell, and PJ. Scully, "An evaluation of a novel plastic optical fiber sensor for axial strain and bend measurements", Measurement Science and Technology 2002; 13: 1523-1534. However, in construction applications such as under consideration in Kuang, the fiber needs to be considerably less flexible than when employed for monitoring the posture of an individual.
Also, US 5,097,252, Harvill discloses a motion sensor comprising an optical fiber disposed between a light source and a light sensor. An upper portion of the fiber is treated so that transmission of light through the optical fiber decreases when the fiber bends in one direction. The fiber is fixed to a finger joint and bends in response to bending of the finger. A light source and light sensor are provided on opposite ends of the tube for continuously indicating the extent of bending of the fiber and thus bending of the finger.
In the present embodiment, the fiber 16 is covered with an acrylic paint, as a conventional light-blocking casing would introduce high a degree of stiffness into the system.
For an adult sized vest, the fiber 16 is typically approximately 35 to 45 cm in length and a typical range of suitable diameter is approximately 0.5mm to 0.75mm. Referring to Figure 2, the fiber is selectively abraded 26 along its length, for example, using sand-paper or a blade. The abrading 26 can either be periodic, along the entire length of the sensor or only along portions where bend is to be sensed. The degree of abrasion is chosen to optimize the variation in light level sensed by the resistor 18 to ensure maximum sensitivity in the region of motion of interest in assessing posture.
The fiber is sewn to the exterior surface of the garment 10 with loose zig-zag stitching 22 as shown in Figure 1. Alternatively, it may be secured to the garment by means of channeling it through a tunnel sewn onto the garment. In order to assist in correct rotational alignment of the fiber with respect to the subject, a broken line 24 of white paint is applied to the abraded side of the fiber and this is located away from the surface of the garment when in use. It will be appreciated, however, that many alignment mechanisms could be employed, for example, the LED 14 and resistor 18 could be arranged to couple to the respective ends of the fiber with a particular orientation with the LED and resistor in turn being implemented say with a flat surface which engages the garment 10.
It has been found that the sensor system of the present invention provides for reliable feedback of posture without requiring any significant disruption of daily activity. The wearable configuration eliminates the need for installation of infrastructure and the discomfort of body-mounted technologies, and the sensor provides a precise, repeatable measurement, with very minimal data processing required.
As mentioned, the main application for the garment of the embodiment is for monitoring seated spinal posture during computer use, to provide the user with real-time bio-feedback about their posture. However, other possible applications of the invention include: • posture and movement analysis in ergonomics and sports analysis;
• activity detection; and
• exercise intensity measurement.
Claims
1. A garment for monitoring the posture of an individual, the garment being arranged to receive a sensor system comprising a light source coupled to an optical fiber which is in turn coupled to a light sensor and control circuitry arranged to, in use, measure the transmissivity of said optical fiber, the optical fiber being treated along its length so that the transmissivity of said fiber varies according to the posture of said individual wearing the garment.
2. The garment as claimed in claim 1 wherein the garment is one of a tight or a loose fitting construction.
3. The garment as claimed in claim 1 or 2 wherein the garment is formed of an elastic fabric.
4. The garment as claimed in claim 1 comprising a highly elastic compression garment.
5. The garment as claimed in claim 1 wherein said fiber is disposed to run along the individual's spine when the garment is worn to enable the measurement of overall spinal flexion.
6. The garment as claimed in claim 1 wherein the light source is independently powered from said control circuitry.
7. The garment as claimed in claim 1 wherein the light source is powered from said control circuitry.
8. The garment as claimed in claim 1 wherein said control circuitry is arranged to record a first transmissivity measurement when an individual wearing said garment has adopted a good seated posture and to record a second transmissivity measurement when the individual wearing the garment has adopted a poor seated posture.
9. The garment as claimed in claim 1 or 8 wherein said control circuitry includes an indicator and wherein said circuitry is responsive to the transmissivity of said fiber lying outside a threshold to actuate said indicator.
10. The garment as claimed in claim 9 wherein said control circuitry is responsive to said transmissivity lying outside a threshold for more than a first period of time within a longer second period of time to actuate said indicator.
11. The garment as claimed in claim 9 wherein said indicator comprises one or more of: a sounder, a light indicator, or a vibrator.
12. The garment as claimed in claim 1 wherein said control circuitry includes a nonvolatile memory for storing said measured transmissivity.
13. The garment as claimed in claim 1 or 12 wherein said control circuitry includes data communications circuitry, enabling transmissivity measurements to be transferred to a separate computing device for analysis of the posture of the individual.
14. The garment as claimed in claim 13 wherein said data communications circuitry includes one or more of: a removable storage medium, a wireless or a wired connection.
15. The garment as claimed in claim 9 said control circuitry is responsive to a measured transmissivity being above a first threshold below the first transmissivity measurement to indicate said individual has adopted a good posture.
16. The garment as claimed in claim 15 wherein said control circuitry is responsive to a measured transmissivity being below a second threshold, said second threshold being below said first threshold and above the second transmissivity measurement to indicate said individual has adopted a poor posture.
17. The garment as claimed in claim 1 wherein said fiber is sewn to the exterior surface of the garment.
18. The garment as claimed in claim 17 wherein said fiber is sewn with loose zig-zag stitching.
19. The garment as claimed in claim 1 wherein said garment includes a fabric tunnel and wherein said fiber is channeled through said tunnel.
20. The garment as claimed in claim 1 wherein fiber includes a rotational alignment indicator.
21. The garment as claimed in claim 20 wherein said indicator includes a visually distinctive broken line applied to the treated surface of the fiber.
22. The garment as claimed in claim 1 wherein one or both of said light source and said light sensor are arranged to couple to the respective ends of the fiber with a particular orientation.
23. The garment as claimed in claim 1 wherein said fiber is treated one of: periodically along its length, along its entire length, or only along portions of the fiber where bend is to be sensed.
24. The garment as claimed in claim 1 wherein the fiber is abraded.
25. The garment as claimed in claim 1 wherein the garment is arranged to removably receive said sensor system.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IES2006/0633 | 2006-08-23 | ||
| IE20060633 | 2006-08-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008022727A1 true WO2008022727A1 (en) | 2008-02-28 |
Family
ID=38650018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2007/007155 WO2008022727A1 (en) | 2006-08-23 | 2007-08-14 | A garment for monitoring posture |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2008022727A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962849A (en) * | 2010-08-05 | 2011-02-02 | 浙江理工大学 | Processing method of light-emitting fabrics with dynamic variation patterns |
| WO2014037405A1 (en) * | 2012-09-04 | 2014-03-13 | Lios Technology Gmbh | Device for detecting thermal data exceeding a threshold and/or thermal data under a threshold and/or temperature change rates, in particular for a use for detecting metal objects in the region of an inductive charging device for electric vehicles |
| CN105393641A (en) * | 2013-07-22 | 2016-03-09 | 皇家飞利浦有限公司 | Method and apparatus for selective illumination of an illuminated textile based on physical context |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4730625A (en) * | 1986-12-15 | 1988-03-15 | Faro Medical Technologies Inc. | Posture monitoring system |
| US5321257A (en) * | 1991-07-31 | 1994-06-14 | Danisch Lee A | Fiber optic bending and positioning sensor including a light emission surface formed on a portion of a light guide |
| US20020024656A1 (en) * | 2000-08-04 | 2002-02-28 | Korea Advanced Institute Of Science And Technology | Optical fiber curvature sensor for measuring body motion and its adhesive method |
| US20020170193A1 (en) * | 2001-02-23 | 2002-11-21 | Townsend Christopher P. | Posture and body movement measuring system |
| US20030083596A1 (en) * | 1997-04-21 | 2003-05-01 | Immersion Corporation | Goniometer-based body-tracking device and method |
| DE202005015889U1 (en) * | 2005-10-07 | 2006-01-05 | Debus, Dirk | Human body part posture and movement monitoring device, has sensor attached directly or indirectly at monitoring part of body, where actual measured value of sensor is stored as threshold value of sensor in memory unit by actuator operation |
-
2007
- 2007-08-14 WO PCT/EP2007/007155 patent/WO2008022727A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4730625A (en) * | 1986-12-15 | 1988-03-15 | Faro Medical Technologies Inc. | Posture monitoring system |
| US5321257A (en) * | 1991-07-31 | 1994-06-14 | Danisch Lee A | Fiber optic bending and positioning sensor including a light emission surface formed on a portion of a light guide |
| US20030083596A1 (en) * | 1997-04-21 | 2003-05-01 | Immersion Corporation | Goniometer-based body-tracking device and method |
| US20020024656A1 (en) * | 2000-08-04 | 2002-02-28 | Korea Advanced Institute Of Science And Technology | Optical fiber curvature sensor for measuring body motion and its adhesive method |
| US20020170193A1 (en) * | 2001-02-23 | 2002-11-21 | Townsend Christopher P. | Posture and body movement measuring system |
| DE202005015889U1 (en) * | 2005-10-07 | 2006-01-05 | Debus, Dirk | Human body part posture and movement monitoring device, has sensor attached directly or indirectly at monitoring part of body, where actual measured value of sensor is stored as threshold value of sensor in memory unit by actuator operation |
Non-Patent Citations (1)
| Title |
|---|
| DUNNE, L.E. WALSH, P. SMYTH, B. CAULFIELD, B.: "Design and Evaluation of a Wearable Optical Sensor for Monitoring Seated Spinal Posture", 10TH IEEE INTERNATIONAL SYMPOSIUM ON WEARABLE COMPUTERS, 2006, October 2006 (2006-10-01), pages 65 - 68, XP002458058, ISSN: 1550-4816 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962849A (en) * | 2010-08-05 | 2011-02-02 | 浙江理工大学 | Processing method of light-emitting fabrics with dynamic variation patterns |
| WO2014037405A1 (en) * | 2012-09-04 | 2014-03-13 | Lios Technology Gmbh | Device for detecting thermal data exceeding a threshold and/or thermal data under a threshold and/or temperature change rates, in particular for a use for detecting metal objects in the region of an inductive charging device for electric vehicles |
| CN105393641A (en) * | 2013-07-22 | 2016-03-09 | 皇家飞利浦有限公司 | Method and apparatus for selective illumination of an illuminated textile based on physical context |
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