US20170157488A1 - Wearable device comprising one or more impact sensors - Google Patents

Wearable device comprising one or more impact sensors Download PDF

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Publication number
US20170157488A1
US20170157488A1 US15/309,585 US201515309585A US2017157488A1 US 20170157488 A1 US20170157488 A1 US 20170157488A1 US 201515309585 A US201515309585 A US 201515309585A US 2017157488 A1 US2017157488 A1 US 2017157488A1
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US
United States
Prior art keywords
sensors
impact
impact sensors
glove
inner glove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/309,585
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English (en)
Inventor
Marco Migliorati
Samuele Grillo
Francesco Castelli-Dezza
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Italian Fight Wear Srl
Original Assignee
Italian Fight Wear Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Italian Fight Wear Srl filed Critical Italian Fight Wear Srl
Assigned to ITALIAN FIGHT WEAR SRL reassignment ITALIAN FIGHT WEAR SRL ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CASTELLI-DEZZA, FRANCESCO, GRILLO, Samuele, MIGLIORATI, Marco
Publication of US20170157488A1 publication Critical patent/US20170157488A1/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0605—Decision makers and devices using detection means facilitating arbitration
    • A63B69/004—
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/08—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/08—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
    • A63B71/14—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the hands, e.g. baseball, boxing or golfing gloves
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/80—Special sensors, transducers or devices therefor
    • A63B2220/83—Special sensors, transducers or devices therefor characterised by the position of the sensor
    • A63B2220/833—Sensors arranged on the exercise apparatus or sports implement
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/20—Miscellaneous features of sport apparatus, devices or equipment with means for remote communication, e.g. internet or the like

Definitions

  • the present invention relates to a wearable device comprising one or more impact sensors and at least one unit transmitting the detected signals to a remote station.
  • the U.S. Pat. No. 5,723,786 describes a boxing glove wherein an impact measuring device is incorporated which comprises a fluid bag in the impact area of the glove, which bag is connected by a tube to a pressure sensor provided in the cuff.
  • the U.S. Pat. No. 4,761,005 describes a device for generating an analog output signal indicative of an impact to a transducer.
  • the transducer may be mounted on protective equipment used in various martial art fields, such as boxing gloves, shin guards, vests and it is of the piezoelectric type and it is indicative of the amount of deformation.
  • the transducer is composed of a piezoelectric film coupled to a deformable material, or it is inserted between two layers of deformable material, and the output signal is generated on the basis of the impacts on the deformable material.
  • the transducer may be connected to a remote receiver and transmitter for providing an indication of the impact to a remote station.
  • the known devices are part of the protective equipment of the athlete, for example they are composed of boxing gloves.
  • boxing glove by its nature is subjected to many and repetitive stresses even of considerable level and therefore it is subjected to wear above all in the external part which can be subjected to tearing or other similar damages.
  • the known devices have a single impact sensor and therefore they do not allow the type of impact to be finely detected, providing more detailed information above all as regards the geometry of the impact.
  • the document US 2006/047447 A1 describes a gauze bandage provided with monitoring components, that wraps the hand of the athlete. This arrangement does not allow for a correct positioning of the sensors, because the gauze bandage needs to be wrapped around the hand of the athlete and a different tensioning of the bandage during the wrapping can lead to completely different positions of the sensors. The athlete must take an excessive cure on positioning the bandage, because an incorrect positioning of the sensor can lead to results that are distorted, even to a great extent.
  • the present invention overcomes the drawbacks of the known devices by providing a device such as described hereinbefore, which is composed of an inner glove wearable under a martial art glove.
  • the inner glove or glove liner can be used with different types of gloves or boxing gloves.
  • the inner glove allows for a univocal and precise positioning of the sensors, when the athlete wears it.
  • inner glove means a glove with a thickness lower than 4 mm, composed of stretch or non-stretch fabric, made of any material, such as cotton or synthetic fibers.
  • one or more inertial sensors are provided.
  • the inertial sensors can comprise accelerometers and gyroscopes in combination or as an alternative with each other.
  • one or more biometric sensors there are provided one or more biometric sensors.
  • Biometric sensors can be of any type, for example heart beat sensors, body temperature sensors, blood pressure sensors, oxygen saturation sensors, perspiration sensors.
  • biometric sensors cannot be mounted directly on the glove, since the inner glove or the wraps prevent them from directly contacting the athlete skin.
  • biometric sensors are advantageously arranged on the inner glove, which is in direct contact with the athlete skin, guaranteeing an accurate detection of the biometric values desired to be monitored.
  • one or more of the fingers of the inner glove are truncated, such that the inner glove, in the worn condition, covers only the first phalange of one or more of the corresponding fingers of the user.
  • said impact sensors are of the piezoelectric type.
  • impact sensors can be of the capacitive type or of another type, for example strain gauges.
  • a plurality of said impact sensors which impact sensors are arranged in such a manner to form an array.
  • one or more impact sensors at the forefinger, middle finger, ring finger and little finger respectively.
  • the array of sensors is composed of 12 sensors, although more or fewer sensors are possible, also distributed in a non-homogeneous manner on the fingers.
  • only two impact sensors are provided for each finger.
  • At least one sensor is placed on the glove portion corresponding to the back of the hand.
  • the unit transmitting the detected signals is set such to transmit the signals to the remote station in real-time.
  • the present invention further relates to a wearable device comprising one or more impact sensors and at least one unit transmitting the detected signals to a remote station, which device comprises a plurality of said impact sensors, which impact sensors are arranged such to form an array.
  • the device advantageously is a part of the protective equipment of an athlete, such as for example boxing gloves, shin guards, vests, knee-pads, elbow guards, helmets, shoes.
  • the device is composed of a glove or an inner glove and it comprises one or more of the characteristics listed above. Even if the characteristics listed above are described with reference to an inner glove, they can be considered valid for a glove or a boxing glove.
  • the signals generated by the accelerometer can be used to obtain an estimation of velocity in the three directions. Theoretically it is possible to obtain the velocity from the acceleration, by performing the following integration:
  • v ⁇ ( T ) ⁇ - ⁇ T ⁇ a ⁇ ( t ) ⁇ ⁇ t
  • the measures of the acceleration generated by the accelerometer have some offsets that are not constant in time and that would lead the integral to diverge.
  • the integral is approximated with a low-pass filter, so to diminish the drift problems.
  • a high-pass filter is applied.
  • the present invention relate also to a method for estimating the velocity starting from the velocity lost during the hit. Thanks to this approach, it is possible to ignore the velocity variations before the impact and, therefore, also the problems related to them.
  • This method of measuring the power of an impact of a wearable device comprising one or more impact sensors and at least one accelerometer, comprises the following steps:
  • the energy of each impact is also calculated from the power.
  • the velocity vector is taken into account for the calculation of the power of the impact only in the time period when said velocity is decreasing during the impact.
  • a low-pass filter is applied to the acceleration signal before step b).
  • a high-pass filter is applied to the acceleration signal before step b).
  • FIGS. 1 to 3 are different views of the device
  • FIG. 4 is a functional block diagram of the device
  • FIG. 5 shows the measured velocity
  • FIGS. 6 to 8 show the velocity, force and power of an impact
  • FIG. 9 shows the calculated energy
  • FIG. 1 shows the wearable device of the present invention, which is composed of an inner glove 1 wearable under a martial art glove.
  • the inner glove 1 is shown in the worn condition and with the user hand closed in a fist.
  • the fingers of the inner glove 1 are truncated, such that in the worn condition the inner glove 1 covers only the first phalange of the user's fingers.
  • an inner glove with non-truncated fingers, or with the fingers truncated such to cover also the second phalange of the user's fingers.
  • the inner glove 1 is composed of stretch or non-stretch fabric, made of any material, such as cotton or synthetic fibers.
  • impact sensors 2 are fastened arranged such to form an array.
  • the impact sensors 2 are of the piezoelectric type, but they can be, as an alternative or in combination, force sensing resistors (FSR) or of the capacitive type or of other type.
  • FSR force sensing resistors
  • FIG. 2 shows a view of the back of the hand with the inner glove 1 in the worn condition, wherein the array of impact sensors 2 is visible placed on the truncated fingers of the forefinger, middle finger, ring finger and little finger.
  • the device comprises an inertial sensor 3 or inertial measurement unit, which can comprise one or more accelerometers and/or gyroscopes in combination or as an alternative to one another.
  • FIG. 3 shows a view of the hand palm with the inner glove 1 in the worn condition, wherein a biometric sensor 4 is visible, advantageously placed in the wrist area.
  • biometric sensors which can be of any type, for example heart beat sensors, body temperature sensors, blood pressure sensors, oxygen saturation sensors, perspiration sensors.
  • Sensors 2 , 3 and 4 are connected to a central processing unit 5 which comprises a unit transmitting the detected signals to a remote station.
  • the processing unit 5 preferably is composed of a flexible electronic card, in order to be better secured to the inner glove 1 , which acts as a support, which electronic card comprises a microprocessor and a plurality of electronic components conditioning the input signals.
  • the electronic card is non-flexible.
  • a curing process can be used for insulating the components.
  • connection is guaranteed by electric wires, preferably housed into coulisses formed on the inner glove 1 .
  • the wires have a zigzag pattern such to have a length enough for guaranteeing a connection without tearing or damages for any type of deformation and elongation to which the inner glove 1 or a part thereof is subjected during the use.
  • the processing unit 5 is powered by an electric energy source, preferably a battery.
  • the battery can be housed in a pocket formed in the inner glove 1 which can be accessed from the outside to allow the battery to be replaced once it is depleted.
  • the battery is rechargeable, for example it is composed of a lithium-ion battery or a lithium-ion polymer battery or a nickel-metal hydride battery (NiMH) or another type, there being provided a recharging circuit comprising a connector to an external power supply, such recharging circuit being outside of or integrated with respect to the processing unit 5 .
  • a recharging circuit comprising a connector to an external power supply, such recharging circuit being outside of or integrated with respect to the processing unit 5 .
  • the recharging circuit can comprise an inductive charging system, which comprises a receiver coupled to the battery and which is arranged to communicate with a transmitter coupled with an external electric source. Both the transmitter and the receiver are provided with one or more coils, in order to perform inductively this wireless energy transfer, by simply bring near the transmitter and the receiver.
  • the standard Qi is used. However, other standards or protocols can be used.
  • the device can be switched on or off by means of a switch.
  • the switch can comprise a very thin button, a tactile button, which is sensitive to pressure like the pressure sensors, or a magnetic switch, which can be activated or deactivated by means of a small magnet.
  • the device is switched in stand-by consequently to an inactivity period as detected by the accelerometer, and can be switched on again once a movement is detected.
  • FIG. 4 shows a functional block diagram of the device, wherein impact sensors 2 , inertial sensors 3 and biometric sensors 4 are visible, connected to the central processing unit 5 .
  • the data detected by the different sensors are sent to the central processing unit 5 , which comprises a unit 51 transmitting the detected signals to a remote station.
  • the unit 51 transmitting the detected signals is configured such to transmit the signals to the remote station in real-time, such that the data can be displayed during television live broadcasts of the matches.
  • the communication between the unit 51 transmitting the detected signals and the remote station can occur according to any protocol, preferably according to the ZigBee protocol or Bluetooth protocol.
  • the central processing unit 5 comprises an average unit 50 , which averages two or more of the signals detected by the impact sensors 2 and it sends the calculated values as an alternative or in combination with the signals detected by the impact sensors 2 .
  • all the signals detected by the impact sensors 2 are averaged for obtaining a single calculated signal indicative of all the impact sensors 2 .
  • the signals about each finger are averaged, therefore 4 signals are obtained indicative of each finger.
  • the central processing unit 5 further comprises a unit measuring the residual charge of the battery 54 , which generates an alarm signal when the residual charge goes below a predetermined threshold.
  • the signal can be sent to the remote station from the unit 51 transmitting the detected signals or it is possible to provide signalling means for the user, such as a buzzer or a LED.
  • the central processing unit 5 comprises a patient health alarm unit 55 , which compares the signals received from the biometric sensors 4 with threshold values, which can be predetermined or set by the user, and it generates an alarm signal if the detected values exceed the threshold values.
  • the central processing unit 5 further comprises a unit 56 recognizing the given punch, which processes the signals generated by the inertial sensors 3 for defining known patterns referable to particular moves of the athlete.
  • the data are further compared with the signals coming from the impact sensors 2 in order to estimate the punch given by the athlete.
  • All the received or generated signals can be stored by the central processing unit in a local storage unit 52 , which is accessible by means of an input/output unit 53 , such as a USB port or a slot for a flash card or similar non volatile storage devices.
  • an input/output unit 53 such as a USB port or a slot for a flash card or similar non volatile storage devices.
  • the signals generated by the accelerometer can be used to obtain an estimation of velocity in the three directions.
  • the velocity is obtained from the acceleration, by performing the following integration:
  • v ⁇ ( T ) ⁇ - ⁇ T ⁇ a ⁇ ( t ) ⁇ ⁇ t
  • the velocity is estimated starting from the velocity lost during the hit. Thanks to this approach, it is possible to ignore the velocity variations before the impact and, therefore, also the problems related to them.
  • FIG. 5 shows the velocity measured for two impacts. As can be seen, the velocity is always ignored except for during the impacts.
  • FIGS. 6, 7 and 8 show respectively the velocity, force and power of the same impact, as measured and calculated above.
  • the direction of interest is obviously that with versor coming out from the fingers.
  • the force measured by the sensors thanks to their positioning, is already the component in that direction, and it will be sufficient to multiply it with the direct velocity in the same way to obtain an estimation of the power.
  • the energy is linked to the power by the following integration:
  • t1 and t2 are the start and end instants of the hit.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Gloves (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Air Bags (AREA)
  • Measuring Fluid Pressure (AREA)
US15/309,585 2014-05-15 2015-05-15 Wearable device comprising one or more impact sensors Abandoned US20170157488A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITGE2014A000046 2014-05-15
ITGE20140046 2014-05-15
PCT/IB2015/053586 WO2015173776A1 (fr) 2014-05-15 2015-05-15 Dispositif portable comprenant un ou plusieurs capteurs d'impact

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US20170157488A1 true US20170157488A1 (en) 2017-06-08

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US15/309,585 Abandoned US20170157488A1 (en) 2014-05-15 2015-05-15 Wearable device comprising one or more impact sensors

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US (1) US20170157488A1 (fr)
EP (1) EP3142757B1 (fr)
JP (1) JP2017532461A (fr)
HR (1) HRP20191037T1 (fr)
WO (1) WO2015173776A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180027900A1 (en) * 2016-07-05 2018-02-01 Dan M. DeLaRosa Striking sensor system and garment
US20180058961A1 (en) * 2016-08-26 2018-03-01 Brady V. Dunham Archery sensory feedback system and method of use
US10557699B1 (en) * 2017-09-28 2020-02-11 Facebook Technologies, Llc Deformable signaling pathways
US20210197058A1 (en) * 2019-12-30 2021-07-01 Nesstoy/Bulk Unlimited Corporation Boxing gaming device
US11344780B2 (en) * 2017-01-31 2022-05-31 Frederic Marciano Strike detection equipment
US11478681B2 (en) 2017-11-29 2022-10-25 Agt Global Media Gmbh Method of real time monitoring of a person during an event and event dynamics system thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205235345U (zh) * 2015-12-15 2016-05-18 刘为国 一种配套蓝牙灯使用的智能拳击手套
CN111790129B (zh) * 2019-04-03 2021-08-31 杭州乾博科技有限公司 一种智能搏击训练系统
KR102259530B1 (ko) 2020-11-06 2021-06-02 김민주 글러브를 활용한 타격정보 제공시스템
JP2024005855A (ja) * 2022-06-30 2024-01-17 新東工業株式会社 グローブ及び行動判定システム

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US4761005A (en) 1985-10-10 1988-08-02 Barry J. French Sports scoring device including a flexible prezoelectric layer resilient layer
US5723786A (en) 1996-07-11 1998-03-03 Klapman; Matthew Boxing glove accelerometer
US6056674A (en) * 1998-04-17 2000-05-02 Cook; Arnold J. Method and apparatus for boxing
US20060047447A1 (en) 2004-08-24 2006-03-02 Impact Sports Technologies, Inc. System, method and device for monitoring an athlete
EP1831661B1 (fr) * 2004-12-29 2010-10-06 Postech Foundation Appareil pour mesurer la force appliquee par une main, appareil d'analyse et systeme
US8622795B2 (en) * 2008-12-04 2014-01-07 Home Box Office, Inc. System and method for gathering and analyzing objective motion data
WO2013142085A1 (fr) * 2012-03-23 2013-09-26 Li Man On Procédés, systèmes, et dispositifs de collecte et d'analyse de données de mouvement d'un athlète

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180027900A1 (en) * 2016-07-05 2018-02-01 Dan M. DeLaRosa Striking sensor system and garment
US20180058961A1 (en) * 2016-08-26 2018-03-01 Brady V. Dunham Archery sensory feedback system and method of use
US10345169B2 (en) * 2016-08-26 2019-07-09 Brady V. Dunham Archery sensory feedback system and method of use
US10852205B2 (en) 2016-08-26 2020-12-01 Brady V. Dunham Archery training methods using sensory feedback systems
US11344780B2 (en) * 2017-01-31 2022-05-31 Frederic Marciano Strike detection equipment
US10557699B1 (en) * 2017-09-28 2020-02-11 Facebook Technologies, Llc Deformable signaling pathways
US11231266B1 (en) * 2017-09-28 2022-01-25 Facebook Technologies, Llc Deformable signaling pathways
US11478681B2 (en) 2017-11-29 2022-10-25 Agt Global Media Gmbh Method of real time monitoring of a person during an event and event dynamics system thereof
US20210197058A1 (en) * 2019-12-30 2021-07-01 Nesstoy/Bulk Unlimited Corporation Boxing gaming device
US11642582B2 (en) * 2019-12-30 2023-05-09 Bulk Unlimited Corporation Boxing gaming device

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Publication number Publication date
JP2017532461A (ja) 2017-11-02
HRP20191037T1 (hr) 2019-11-15
WO2015173776A1 (fr) 2015-11-19
EP3142757B1 (fr) 2019-04-17
EP3142757A1 (fr) 2017-03-22

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