WO1995014430A1 - Method for determination of the weight of human body and device for performing the method - Google Patents
Method for determination of the weight of human body and device for performing the method Download PDFInfo
- Publication number
- WO1995014430A1 WO1995014430A1 PCT/EP1993/003265 EP9303265W WO9514430A1 WO 1995014430 A1 WO1995014430 A1 WO 1995014430A1 EP 9303265 W EP9303265 W EP 9303265W WO 9514430 A1 WO9514430 A1 WO 9514430A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- foot
- body weight
- force
- pressure
- data
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000037396 body weight Effects 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000009530 blood pressure measurement Methods 0.000 claims 2
- 230000036772 blood pressure Effects 0.000 claims 1
- 230000036760 body temperature Effects 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
- 230000001131 transforming effect Effects 0.000 claims 1
- 210000000707 wrist Anatomy 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
- A43B3/38—Footwear characterised by the shape or the use with electrical or electronic arrangements with power sources
- A43B3/42—Footwear characterised by the shape or the use with electrical or electronic arrangements with power sources where power is generated by conversion of mechanical movement to electricity, e.g. by piezoelectric means
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
- A43B3/38—Footwear characterised by the shape or the use with electrical or electronic arrangements with power sources
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
- A43B3/44—Footwear characterised by the shape or the use with electrical or electronic arrangements with sensors, e.g. for detecting contact or position
-
- 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
- A61B5/1036—Measuring load distribution, e.g. podologic studies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/44—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
- G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
- G01G23/37—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
- G01G23/3728—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means
Definitions
- This invention relates to a method for determination of the weight of human body and a device for performing it- It can be used also for the determination of loads carried by a person by differential measurement.
- a large variety of body weight scales are available which, however, are stationary and not designed for permanent determination of the body weight during normal walking or sporting activities.
- the invention as claimed solves the above described problems by providing a method for determination of the weight of human body which can be performed permanently according to the actual needs.
- Suitable sensors can be chosen from a variety of compression and tension force sensors available on the market and discussed in detail in G ⁇ nter W.Schanz, "Sensoren, Fiihler der Messtechnik", Dr.Aired Hutig VErlag, Heidelberg, 1986, in particular on pages 270 - 325.
- the preferred piezoresistive or piezoelectric pressure transducers convert pressure exerted by the foot of the human body into an electric signal.
- the pressure transducer is connected either by wire or wire-less to a pressure measuring and indicating apparatus.
- This apparatus may comprise a digital voltmeter which receives the force-proportional signal from the pressure transducer.
- the pressure transducer (one or several) are embedded in a shoe insert which can easily be inserted in and removed from the shoe. Arranging several pressure transducers over the whole area of the foot contact allows for compensation of non-uniform application of force to the supporting means of the foot.
- the pressure transducers are then distributed in a matrix array over a suitable force measuring carpet which may have the form of a shoe insert. The electric signals derived from such a matrix array will then be supplied to an evaluation apparatus which calculates the exerted total force, transforms it into body weight of the person exerting such a force and indicates the body weight on a suitable display, e.g. a wrist watch.
- Fig. 1 is a schematic perspective view of a device for performing the method according to the invention
- Fig. 2 shows a block diagram of a device for performing the method according to the invention.
- Fig. 1 shows a device 1 for performing the method according to the invention, incorporated partly in a shoe 2 and partly in a wrist watch 3 on the optical display 9 of which the body weight data are permanently displayed.
- the pressure exerted by a persons foot 12 on the sensing means 5 in the form of a pressure sensor incorporated in the supporting means 13 (i.e. the sole) of shoe 2 is used for continuously obtaining body weight data of the person of which the body weight shall be monitored.
- the device 1 of Fig. 1 is explained more in detail with reference to Fig. 2; it consists of an electrical power supply battery 4 connected to a piezoresistive sensor 5 which in turn is connected to a transmitter 6 which generates infrared light for transmitting the data wireless to the wrist watch 3 which contains to this effect a receiver 7, a microprocessor 8 (with a RAM and a ROM) and an optical display 9.
- the display 9 indicates the body weight data by means of a LCD or LED arrangement.
- a LCD or LED arrangement In case that only one sensor 5 is used in the shoe 2 there is the need of statistical processing of the data measured, in order to obtain an average of the body weight of the person wearing the shoe 2. This can be effect by the Gauss equation called exp(x 2 ).
- an active charge amplifier 10 which functions as a signal preamplifier may be used.
- the preamplifier may be arranged in or on the sensor 5.
- the wireless transmitter 6 can take the form of a high-frequency transmitter, the carrier signal of which is modulated by the measurement signal (input).
- the wireless transmitter 6 can take the form of an infrared or laser transmitter device. A digital signal transmission is particularly advantageous.
- the digital sensor data can also be transmitted via optical waveguide cables.
- the analog measurements signals of the sensor 5 must be converted into digital signals by means of a converter 11.
- Various methods are sufficiently known from the state of the art. For this purpose it is of advantage to provide for serial output of the digital values of the converter 11, since a parallel output necessitates additional expense as regards transmission devices.
- the signal preamplifier 10 and the analog/digital converter 11 are combined into a single functional unit; e.g. by using a charge/frequency converter in which the charge amount of the mechanoelectrical converter is directly converted into a frequency-proportional signal.
- an absolute pressure sensor is used, for instance the absolute pressure sensor KPY 14 manufactured by Siemens AG, Kunststoff (Germany) .
- This absolute pressure sensor is embedded in an elastomeric material in such a manner that there is- no essential contact of the absolute pressure sensor (when inserted in the shoe) to either the foot or the shoe sole. This results in a uniform pressure distribution and good protection of the absolute pressure sensor 5, any compensation resistors, cables and of the transmitter 6 against environmental influences in particular against penetration of gases, humidity and sweat.
- the senor 5 is configured as a transducer diaphragm. This leads to an extremely compact and light-weight sensor 5 being in no way an obstruction when inserted in the shoes 2 of a person. It is, therefore, possible with no problem whatsoever to carry out body weight measurements on the wearer under dynamic loading conditions.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Computer Networks & Wireless Communication (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
In this method for determination of the weight of human body force or pressure exerted by the foot (12) of the human body on supporting means (13) of the foot (12) is measured by sensing means (5) incorporated in a shoe (2) generating an electric signal proportional or analog to said force or pressure. The signals are transmitted to a remote area where they are indicated in the form of body weight data on the display (9) of a wrist watch (3).
Description
METHOD FOR DETERMINATION OF THE WEIGHT OF HUMAN BODY AND DEVICE FOR PERFORMING THE METHOD
FIELD OF THE INVENTION
This invention relates to a method for determination of the weight of human body and a device for performing it- It can be used also for the determination of loads carried by a person by differential measurement.
BACKGROUND ART
A large variety of body weight scales are available which, however, are stationary and not designed for permanent determination of the body weight during normal walking or sporting activities.
Especially for diet patients it is desirable to know at any time and at any location the exact body weight in order to take decisions regarding food up-take or sporting activities.
SUMMARY OF THE INVENTION
The invention as claimed solves the above described problems by providing a method for determination of the weight of human body which can be performed permanently according to the actual needs.
Suitable sensors can be chosen from a variety of compression and tension force sensors available on the market and discussed in detail in Gϋnter W.Schanz, "Sensoren, Fiihler der Messtechnik", Dr.Aired Hutig VErlag, Heidelberg, 1986, in particular on pages 270 - 325.
The preferred piezoresistive or piezoelectric pressure transducers convert pressure exerted by the foot of the human body into an electric signal. The pressure transducer is connected either by wire or wire-less to a pressure measuring and indicating apparatus. This apparatus may comprise a digital voltmeter which receives the force-proportional signal from the pressure transducer.
In a preferred embodiment of the invention the pressure transducer (one or several) are embedded in a shoe insert which can easily be inserted in and removed from the shoe. Arranging several pressure transducers over the whole area of the foot contact allows for compensation of non-uniform application of force to the supporting means of the foot. Preferably the pressure transducers are then distributed in a matrix array over
a suitable force measuring carpet which may have the form of a shoe insert. The electric signals derived from such a matrix array will then be supplied to an evaluation apparatus which calculates the exerted total force, transforms it into body weight of the person exerting such a force and indicates the body weight on a suitable display, e.g. a wrist watch.
The preferred piezoresistive or piezoelectric pressure transducers may be replaced by a strain gauge connected in a Wheatstone bridge or any other appropriate pressure sensor. The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming part of this disclosure. For the better understanding of the invention, its operating advantages and specific objects attained by its use, reference should be had to the accompanying drawings, examples and descriptive matter in which are illustrated and described preferred embodiments of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings:
Fig. 1 is a schematic perspective view of a device for performing the method according to the invention; and
Fig. 2 shows a block diagram of a device for performing the method according to the invention.
DETAILED DESCRIPTION OF THE INVENTION
Fig. 1 shows a device 1 for performing the method according to the invention, incorporated partly in a shoe 2 and partly in a wrist watch 3 on the optical display 9 of which the body weight data are permanently displayed. The pressure exerted by a persons foot 12 on the sensing means 5 in the form of a pressure sensor incorporated in the supporting means 13 (i.e. the sole) of shoe 2 is used for continuously obtaining body weight data of the person of which the body weight shall be monitored.
The device 1 of Fig. 1 is explained more in detail with reference to Fig. 2; it consists of an electrical power supply battery 4 connected to a piezoresistive sensor 5 which in turn is connected to a transmitter 6 which generates infrared light for transmitting the data wireless to the wrist watch 3 which contains to this effect a receiver 7, a microprocessor 8 (with a RAM and a ROM) and an optical display 9.
The display 9 indicates the body weight data by means of a LCD or LED arrangement. In case that only one sensor 5 is used in the shoe 2 there is the need of statistical processing of the
data measured, in order to obtain an average of the body weight of the person wearing the shoe 2. This can be effect by the Gauss equation called exp(x2).
Instead of using wireless transmission of the data it is possible to use a cable of course.
Preferably an active charge amplifier 10 which functions as a signal preamplifier may be used. The preamplifier may be arranged in or on the sensor 5.
The wireless transmitter 6 can take the form of a high-frequency transmitter, the carrier signal of which is modulated by the measurement signal (input). In a further embodiment the wireless transmitter 6 can take the form of an infrared or laser transmitter device. A digital signal transmission is particularly advantageous.
In low power supply situations, the digital sensor data can also be transmitted via optical waveguide cables.
For digital transmission of the sensor signals the analog measurements signals of the sensor 5 must be converted into digital signals by means of a converter 11. Various methods are sufficiently known from the state of the art. For this purpose it is of advantage to provide for serial output of the digital values of the converter 11, since a parallel output necessitates additional expense as regards transmission devices.
Preferably the signal preamplifier 10 and the analog/digital converter 11 are combined into a single functional unit; e.g. by using a charge/frequency converter in which the charge amount of the mechanoelectrical converter is directly converted into a frequency-proportional signal.
With the embodiment of the invention shown in Figs. 1 and 2 as a sensor 5 an absolute pressure sensor is used, for instance the absolute pressure sensor KPY 14 manufactured by Siemens AG, Munich (Germany) .This absolute pressure sensor is embedded in an elastomeric material in such a manner that there is- no essential contact of the absolute pressure sensor (when inserted in the shoe) to either the foot or the shoe sole. This results in a uniform pressure distribution and good protection of the absolute pressure sensor 5, any compensation resistors, cables and of the transmitter 6 against environmental influences in particular against penetration of gases, humidity and sweat.
In another embodiment the sensor 5 is configured as a transducer diaphragm. This leads to an extremely compact and light-weight sensor 5 being in no way an obstruction when inserted in the shoes 2 of a person. It is, therefore, possible with no problem whatsoever to carry out body weight measurements on the wearer under dynamic loading conditions.
While the foregoing description and drawings represent the preferred embodiments of the present invention, it will be obvious for those skilled in the art that various changes and modifications may be made therein without departing from the true spirit and scope of the present invention.
Claims
1. Method for determination of the weight of human body, characterized in that force or pressure exerted by the foot (12) of the human body on supporting means (13) of the foot (12) is measured by sensing means (5) generating an electric signal proportional or analog to said force or pressure, said signal being transmitted to a remote area where it is indicated in the form of body weight data.
2. Method according to claim 1, characterized in that said force or pressure measurement and said body weight indication is performed in a permanent way.
3. Method according to claim 1 or 2, characterized in that said body weight data are visually displayed.
4. Method according to one of the claims 1 to 3, characterized in that said supporting means (13) of the foot (12) are shoes (2), shoe inserts or socks.
5. Method according to one of the claims 1 to 4, characterized in that said body weight data are indicated on a wrist-watch (3) , bracelet, magnetic card, credit-card or hand-held receiver.
6. Method according to one of the claims 1 to 5, characterized in that said sensing means (5) is a sensor responsive to static and dynamic compression and tension, preferably a piezoresistive or piezoelectric sensor.
7. Method according to one of the claims 1 to 6, characterized in that said signal is transformed to body weight data in the foot area and subsequently transmitted to the remote area for indication.
8. Method according to one of the claims 1 to 6, characterized in that said signal is first transmitted to the remote area and subsequently transformed to body weight data in said remote area for indication.
9. Method according to one of the claims 1 to 8, characterized in that transmission of said signal is performed electrically, electromagnetically or optically.
10. Method according to one of the claims 1 to 9, characterized in that additionally to the foot force or pressure other body data, preferably body temperature, blood pressure or number of foot steps, are measured and indicated in said remote area.
11. Method according to one of the claims 1 to 10, characterized in that said body data are stored in a memory and used for comparative purposes and for elaborating statistic data.
12. Method according to one of the claims 1 to 11, characterized in that said force or pressure measurement and said body weight indication is calculated from a statistical function, for the average of the body weight, called Gauss equation by terms of y = exp(x2) .
13. Device for performing the method according to one of the claims 1 - 12, characterized by force or pressure sensing means (5) located at supporting means (13) of the foot (12), pressure data transmitting means (6) and indicating means (9) at a remote area.
14. Device according to claim 13 characterized in that it comprises a microchip or microprocessor (8) for storing, transforming, handling, comparing and indicating the signals generated by said force or pressure sensing means (5) .
15. Device according to claim 13 or 14, characterized in that the sensing means (5) comprise a plurality of sensors distributed at different locations of the supporting means (13) of the foot (12).
16. Device according to one of the claims 13 to 15, characterized in that the sensing means (5) are arranged or embedded in a shoe insert.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP1993/003265 WO1995014430A1 (en) | 1993-11-22 | 1993-11-22 | Method for determination of the weight of human body and device for performing the method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP1993/003265 WO1995014430A1 (en) | 1993-11-22 | 1993-11-22 | Method for determination of the weight of human body and device for performing the method |
Publications (1)
Publication Number | Publication Date |
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WO1995014430A1 true WO1995014430A1 (en) | 1995-06-01 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP1993/003265 WO1995014430A1 (en) | 1993-11-22 | 1993-11-22 | Method for determination of the weight of human body and device for performing the method |
Country Status (1)
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19533212A1 (en) * | 1995-09-08 | 1997-03-13 | Hans Hermann Dr Rer N Schreier | Therapeutic protection equipment against overload |
EP0916931A1 (en) * | 1997-11-06 | 1999-05-19 | Tien-Tsai Huang | Insole pad having step-counting device |
KR100398822B1 (en) * | 2001-06-13 | 2003-09-19 | 주식회사 마인드스윙 | Load Data Transmitter for Use in System for Measuring Distribution of Dynamic Load in Athletic Sports |
WO2003087730A1 (en) * | 2002-04-10 | 2003-10-23 | Siemens Aktiengesellschaft | System and method for generating signals |
NL2000197C2 (en) * | 2006-08-24 | 2008-02-26 | Sportmarketing Consultancy B V | System for measuring weight reduction, an inlay body with force sensor, a shoe and a portable control device. |
KR101124292B1 (en) * | 2009-05-13 | 2012-03-27 | 신동석 | Apparatus for body weight scale of shoe type |
US9267793B2 (en) | 2000-12-15 | 2016-02-23 | Tvipr, Llc | Movement monitoring device for attachment to equipment |
WO2016196349A1 (en) * | 2015-05-29 | 2016-12-08 | Nike Innovate C.V. | Wearable article with a kinetic energy generator |
US9521964B2 (en) | 2011-12-23 | 2016-12-20 | Industrial Technology Research Institute | System and method for estimating the mechanical behavior of human lower limbs |
US9643091B2 (en) | 2000-12-15 | 2017-05-09 | Apple Inc. | Personal items network, and associated methods |
US9677928B2 (en) | 2015-04-26 | 2017-06-13 | Samuel Lightstone | Method, device and system for fitness tracking |
EP3219257A1 (en) * | 2016-03-18 | 2017-09-20 | Bromm, Boris | Device for measuring a pressure force |
CN107242635A (en) * | 2013-05-24 | 2017-10-13 | 姬志刚 | A kind of multifunctional sport shoe |
CN112006662A (en) * | 2020-08-31 | 2020-12-01 | 东华大学 | System for real-time monitoring weight and analyzing water loss parameters during exercise |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989001760A1 (en) * | 1987-09-02 | 1989-03-09 | Nyberg Karl Erik | Indicating device for indicating the set-down force of the feet of humans or animals |
DE3732891A1 (en) * | 1987-09-30 | 1989-04-20 | Tetron Developments Ges Fuer I | Shoe with measurement device |
WO1990000031A1 (en) * | 1988-07-01 | 1990-01-11 | Effner Gmbh | Transducer for measurement of vertical foot forces |
-
1993
- 1993-11-22 WO PCT/EP1993/003265 patent/WO1995014430A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989001760A1 (en) * | 1987-09-02 | 1989-03-09 | Nyberg Karl Erik | Indicating device for indicating the set-down force of the feet of humans or animals |
DE3732891A1 (en) * | 1987-09-30 | 1989-04-20 | Tetron Developments Ges Fuer I | Shoe with measurement device |
WO1990000031A1 (en) * | 1988-07-01 | 1990-01-11 | Effner Gmbh | Transducer for measurement of vertical foot forces |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19533212A1 (en) * | 1995-09-08 | 1997-03-13 | Hans Hermann Dr Rer N Schreier | Therapeutic protection equipment against overload |
EP0916931A1 (en) * | 1997-11-06 | 1999-05-19 | Tien-Tsai Huang | Insole pad having step-counting device |
US10080971B2 (en) | 2000-12-15 | 2018-09-25 | Apple Inc. | Personal items network, and associated methods |
US9267793B2 (en) | 2000-12-15 | 2016-02-23 | Tvipr, Llc | Movement monitoring device for attachment to equipment |
US10639552B2 (en) | 2000-12-15 | 2020-05-05 | Apple Inc. | Personal items network, and associated methods |
US10427050B2 (en) | 2000-12-15 | 2019-10-01 | Apple Inc. | Personal items network, and associated methods |
US9643091B2 (en) | 2000-12-15 | 2017-05-09 | Apple Inc. | Personal items network, and associated methods |
US10406445B2 (en) | 2000-12-15 | 2019-09-10 | Apple Inc. | Personal items network, and associated methods |
KR100398822B1 (en) * | 2001-06-13 | 2003-09-19 | 주식회사 마인드스윙 | Load Data Transmitter for Use in System for Measuring Distribution of Dynamic Load in Athletic Sports |
WO2003087730A1 (en) * | 2002-04-10 | 2003-10-23 | Siemens Aktiengesellschaft | System and method for generating signals |
NL2000197C2 (en) * | 2006-08-24 | 2008-02-26 | Sportmarketing Consultancy B V | System for measuring weight reduction, an inlay body with force sensor, a shoe and a portable control device. |
WO2008023978A1 (en) * | 2006-08-24 | 2008-02-28 | Sportmarketingconsultancy B.V. | System for measuring weight loss, a force sensor pad, a shoe and a portable monitoring device |
KR101124292B1 (en) * | 2009-05-13 | 2012-03-27 | 신동석 | Apparatus for body weight scale of shoe type |
US9521964B2 (en) | 2011-12-23 | 2016-12-20 | Industrial Technology Research Institute | System and method for estimating the mechanical behavior of human lower limbs |
CN107242635A (en) * | 2013-05-24 | 2017-10-13 | 姬志刚 | A kind of multifunctional sport shoe |
US9677928B2 (en) | 2015-04-26 | 2017-06-13 | Samuel Lightstone | Method, device and system for fitness tracking |
US10595583B2 (en) | 2015-05-29 | 2020-03-24 | Nike, Inc. | Determining footwear replacement based on piezoelectric output |
WO2016196349A1 (en) * | 2015-05-29 | 2016-12-08 | Nike Innovate C.V. | Wearable article with a kinetic energy generator |
US11350693B2 (en) | 2015-05-29 | 2022-06-07 | Nike, Inc. | Determining footwear replacement based on piezoelectric output |
US11672302B2 (en) | 2015-05-29 | 2023-06-13 | Nike, Inc. | Writing to apparel by flexing piezoelectric generator |
US11751626B2 (en) | 2015-05-29 | 2023-09-12 | Nike, Inc. | Determining footwear replacement based on piezoelectric output |
US12022914B2 (en) | 2015-05-29 | 2024-07-02 | Nike, Inc. | Writing to apparel by flexing piezoelectric generator |
EP3219257A1 (en) * | 2016-03-18 | 2017-09-20 | Bromm, Boris | Device for measuring a pressure force |
CN112006662A (en) * | 2020-08-31 | 2020-12-01 | 东华大学 | System for real-time monitoring weight and analyzing water loss parameters during exercise |
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