WO2017210367A1 - Système et procédé de détection de vibrations haute fréquence sur un équipement sportif - Google Patents

Système et procédé de détection de vibrations haute fréquence sur un équipement sportif Download PDF

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Publication number
WO2017210367A1
WO2017210367A1 PCT/US2017/035317 US2017035317W WO2017210367A1 WO 2017210367 A1 WO2017210367 A1 WO 2017210367A1 US 2017035317 W US2017035317 W US 2017035317W WO 2017210367 A1 WO2017210367 A1 WO 2017210367A1
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WO
WIPO (PCT)
Prior art keywords
data
equipment
sensor
sensor arrangement
event
Prior art date
Application number
PCT/US2017/035317
Other languages
English (en)
Inventor
Jacob Van Reenen PRETORIUS
Original Assignee
Future Technologies in Cricket (FTIC)
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
Priority claimed from US15/608,965 external-priority patent/US10527487B2/en
Application filed by Future Technologies in Cricket (FTIC) filed Critical Future Technologies in Cricket (FTIC)
Priority to CA3026071A priority Critical patent/CA3026071A1/fr
Priority to EP17807446.4A priority patent/EP3465111A4/fr
Priority to AU2017273700A priority patent/AU2017273700A1/en
Publication of WO2017210367A1 publication Critical patent/WO2017210367A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
    • G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture

Definitions

  • This invention relates to manufacturing and applying high-frequency vibration sensors to sporting equipment, electronics to interpret vibrations, software and methods to identify information regarding vibration and methods to communicate vibration related information to devices physically removed from the equipment.
  • Detecting vibrations in sporting equipment is desired as it can provide a wealth of information regarding the state of play. For instance, in tennis and volleyball, rulings are made based on if the net was touched or not; in cricket and baseball, batsmen can be ruled out if they touched the ball with their bats etc.
  • Televised sports generate substantial revenues for broadcasting companies. These companies employ the services of multiple technology providers in order to provide more detailed information reading the state of play and the players as to increase the appeal and excitement of their broadcast.
  • the invention described here overcomes deficiencies in the prior art by integrating highly-sensitive, high-frequency, soft-polymer vibrations sensors with the artwork and logos currently utilized in equipment to make the sensors unobtrusive. Furthermore, low- power electronics with the ability to capture and analyze specific signals of concern is utilized as to increase the operational lifetime of the system and decrease the number of recharge or battery changes per match. High-frequency vibration data is captured and stored locally on the equipment where user-defined code can analyze data and pick specific parameters of concern to send via the wireless communications link to a receiver. The receiver is able to capture the data and re-construct events of interest. This architecture will reduce the power and bandwidth requirements of the device while maintaining functionality and the ability to transmit and report parameters and incidents of interest.
  • a system for measuring and reporting vibrations in sporting equipment comprises a sensor arrangement that is integrated into the decorative sticker of the equipment.
  • the sticker includes piezo electric materials, which can be piezoelectric polymers.
  • the sampling rate of the sensor arrangement can be up to and higher than 2 kHz and contact can be made with the material via conductive traces in the sticker.
  • the conductive traces can be printed as part of the sticker, and can be copper on polyamide.
  • a method for measuring vibrations in sporting equipment that utilizes the sensor arrangement can include the steps of integrating the sensor arrangement into the decorative coating of the equipment, and moving the sporting equipment to generate sensor data that is transmitted to an analyzing device.
  • the sensor arrangement is interconnected to an electronic component, and the interconnection can be by conductive ink printed within the decorative coating.
  • the electronic component can be co-encapsulated with the sensor arrangement in the decorative coating.
  • the electronic component can include a wireless transmitting capability, and data is transmitted exclusively in response to an event. The event can be determined by a preset threshold.
  • the signal of the sensor arrangement can be monitored in a low-power mode until the event occurs, and high-frequency data can be acquired for a predetermined period in response to the event occurring.
  • the high frequency data can be analyzed by the electronic component and specific information regarding the data can be determined.
  • the specific information can be transmitted exclusively via the wireless network.
  • the sensor arrangement and the electronic component are constructed and arranged to utilize minimum amounts of battery power for sensing, recording and transmitting data.
  • an analyzing arrangement allows reconstruction of the data traces at a receiving end.
  • a method of sensing vibrations in sports equipment that is integrated into the decorative coatings of the equipment comprises the steps of capturing vibration signals within a sensor and circuitry integrated in the coatings, and transmitting the vibration signals as data via wireless data transfer in order to synchronize the vibration data with optical sensor data.
  • the optical sensors can be ultra-motion cameras and/or can be integrated into a handheld device or devices.
  • the handheld device can be a mobile phone with an integrated camera.
  • a system and method for measuring and reporting vibrations in sporting equipment includes a sensor arrangement that is integrated into the decorative sticker of the equipment.
  • the sticker includes piezoelectric materials, such as piezoelectric polymers (e.g. polyimide).
  • the sampling rate of the sensor arrangement can be up to, and higher than, approximately 2 kHz.
  • Electrical contact can be made with the material via conductive traces in the sticker.
  • the conductive traces are printed as part of the sticker, using, (e.g.) screen-printed conductive ink.
  • the conductive traces can be copper on a polymer on polyamide.
  • a method for measuring vibrations in sporting equipment can include integrating the sensor arrangement into the decorative coating of the equipment and applying acceleration/deceleration to the sporting equipment to generate sensor data that is transmitted to an analyzing device.
  • the sensor arrangement is interconnected to an electronic component and/or the sensor arrangement and electronic component are interconnected by (e.g. conductive ink printed) traces within the decorative coating.
  • the electronic component can be co-encapsulated with the sensor arrangement in the decorative coating and can include a wireless transmitting capability.
  • data is transmitted exclusively in response to an event, and/or the event is determined by a pre-set threshold.
  • a signal of the sensor arrangement can be monitored in a low-power mode until the event occurs.
  • high frequency data is acquired for a predetermined period in response to the event occurring.
  • the high frequency data can be analyzed by the electronic component and specific information regarding the data is determined.
  • the specific information can be transmitted exclusively via the wireless network.
  • the sensor arrangement and the electronic component are constructed and arranged to utilize minimum amounts of battery power for sensing, recording and transmitting data.
  • an analyzing arrangement allows reconstruction of the data traces at a receiving end.
  • a method of sensing vibrations in sports equipment which is integrated into the decorative coatings of the equipment, is provided.
  • the method includes capturing vibration signals within a sensor and circuitry integrated in the coatings, and transmitting the vibration signals as data via wireless data transfer in order to utilize and/or store data on a separate device.
  • the transmitted vibration data is synchronized with optical sensor data.
  • the optical sensors are ultra-motion cameras.
  • the optical sensors are integrated into handheld device or device, which can be a mobile phone or plurality of phones, each with an integrated camera.
  • Fig. 1 is a depiction of an exemplary layout of the sensing system on a cricket bat
  • Fig. 2 indicates the layers that make up the integrated sensing and artwork system
  • Fig. 3 is an example of a sensing system architecture for detecting edges on cricket bats
  • Fig. 4 is an example of basic process for operating the sensing system and transmitting data according to an illustrative embodiment
  • Figs 5A and 5B depict an example of an impact trace and how critical information and parameters are collected, analyzed and communicated.
  • MEMS accelerometers are only capable of sensing frequencies up to ⁇ 2 kHz where a number of impacts create signals at much higher frequencies.
  • Delay in receiving/exporting data Some devices log data that has to be downloaded for review by physically connecting to display devices. These devices cannot supply information in real time, nor can they provide direct feedback on action as it happens.
  • the invention disclosed here will overcome these deficiencies by combining a number of existing and available technologies in order to solve the overall systems problem so that the application will find uptake in the market.
  • Fig. 1 illustrates one possible embodiment of the invention integrated into a cricket bat. It is well understood by those skilled in the art the this illustration and sport equipment is for general description of the invention and that different formats of the invention is possible and that it is also possible to integrate the solution on different types of bats, rackets, clubs and other equipment related to the sport in question.
  • Ubiquitous to cricket bats and sports gear in general is logo and artwork that is applied to the equipment as one of the final steps in manufacturing.
  • This artwork performs the function of identifying the manufacturer, make and model of the bat as well as provide aesthetics to incentivize the purchase of the equipment.
  • this artwork comes in the form of a sticker that has a transparent polymer layer on which the artwork is printed.
  • a double sided adhesive is applied to the printed side to complete the sticker.
  • This sticker is supplied to the bat/equipment manufacturer who peels off the protective paper on the other side of the double sided adhesive and applies the sticker to the bat.
  • the adhesive is designed to adhere to the bat/equipment for the life of the equipment.
  • the sticker is usually applied to a part of the bat/equipment that does not come into contact with other pieces of equipment such as balls, further enhancing the lifetime of the artwork.
  • This process allows artist to create all forms, shapes and artwork of stickers that are applied to the bats and equipment. To date these stickers have only performed a visual esthetic and identification function and not a measurement function.
  • Multi-functional sticker 1 10 consists of not only artwork, but also of conductive traces 11 1 that electrically connect to electrodes on vibration sensors 1 13.
  • Vibration sensors 113 can be piezo electric ceramics such as PZT-5 (A,H), PZT-4, piezo electric polymers such as PVDF, piezo resistive materials such as silicone, or any other sensing material capable of sensing vibration in frequencies higher than 2kHz as known to those skilled in the art.
  • These conductive traces can be screen printed conductive ink, copper etched traces on material such as polyamide or FR4 or other flexible materials as known to those skilled in the art.
  • Conductive traces 1 11 can take on any form to allow flexibility in the design of the artwork as well as the layout and cut of the sticker as known to those skilled in the art. This provides artists the opportunity to design and produce logos and artwork that have the desired form but maintain the conductive function. Conductive tracks 1 11 allows multi-functional sticker 1 10 to conduct electric signals generated by sensor 1 13 in response to vibrations to sensing electronics 123.
  • Fig. 2 is a cutaway view of sports equipment and multi-functional sticker 110, in the case of the bat in Fig. 1 , looking in the direction of the handle.
  • Multi-functional sticker 1 10 of the equipment is shown.
  • Equipment in the specific illustration is the wood of bat 101. It should be obvious to those skilled in the art that the equipment can be of a plurality of materials such as fiber glass, aluminum, titanium, fiber-reinforced plastics, wood, polymer, metal-ceramic composites, ceramics or any other material utilized in the equipment of different sports.
  • Thin, double-sided, adhesive layer 33 bonds multi-functional sticker 110 to bat 101.
  • Adhesive layer 33 needs to be thin and stiff in order to transmit high frequency mechanical vibrations efficiently to sensor 113.
  • the other side of double sided adhesive 33 is in contact with sticker di-electric layer 34, conductive tracks 11 1 and sensor 1 13.
  • Di-electric layer can be of any electrically insulating material such as polyester, polyamide, fiber re-enforced plastics etc.
  • Adhesive 33, conductive tracks 11 1 , sensor 113 and di-electric 34 make up the sensing layer of multi-functional sicker 1 110.
  • Adhesive gasket 36, multi-layer artwork 37 and sticker base 38 make up the logo/artwork layer. This layer is produced just as current logo/artwork stickers today with a double sided adhesive 36 enclosing multi-layer 37 artwork on one side and sticker base 38 on the other. The manufacturing of logo/artwork layer is well known to those skilled in the art. Printing conductive tracks 11 1 on di-electric layer 34 is also well known to those skilled in the art.
  • vibration sensor 1 13 with conductive traces 1 11 with logo/artwork and the attachment of sensors to sporting equipment in such a manner that mechanical vibrations are efficiently transmitted to vibration sensors, the signal of the vibration sensors are captured and transmitted to electronics, sensors 113 and traces 11 1 that are sufficiently isolated from the environment and that logo's and artwork can be placed onto the sensing layer without inhibiting the designer of such logo/artwork. Furthermore, the simplicity and non-intrusiveness of adding the sensing layer will not interfere with the weight or balance of the bat in such a way that it will make a difference to the player or operator of the equipment.
  • sensing electronics 123 is housed in bottom cover 124 that contains male pins that slide into mounting holes 112 cut into sticker 110. These mounting holes line up traces 110 with electric connecting pads on electronics 123 so that electrical contact can be made between electronics 123 and sensors 113.
  • This mounting technique allows for mechanical strain relief from the electric contact point between the conductive traces and the electronics.
  • Bottom cover 124 fits into mounting hole 102 and can be mechanically secured by means of adhesives, press fit, screws or any other mechanical fastening method known to those skilled in the art.
  • Electronics 123 is electrically connected to conductive traces 11 1 via connectors, conductive adhesives, crimp fits or any other method that electrically and mechanically join two conductive surfaces known to those skilled in the art. Electronics 123 are affixed to bottom cover 124 by crews, press fit, adhesives or any other method known to those skilled in the art. The mechanical fixing can happen before or after electronics 123 are electrically connected to conductive traces 1 1 1 as will be appreciated by those skilled in the art. By the end of the process, electronics 123 is both electrically connected to conductive traces 11 1 and affixed to bat 101. [0028] As an example, electronics 123 are protected by top cover 122 that also house battery 121 and battery cover 120.
  • battery cover 120 easy aces to battery 121 is provided by battery cover 120 so that battery 121 can be replaced very quickly when needed.
  • protection for electronics 123 and the methods of integrating the battery are one of many possible ways to perform the task of protecting electronics 123 and supplying power to electronics 123.
  • electronics can be integrated into sticker 1 10 by means of flex-circuitry a method well-known to those skilled in the art.
  • Flex circuitry protects electronics 123 completely from all sides by mean of a polymer an adhesive process well known to those skilled in the art.
  • Other protection mechanisms include potting the electronics, integrating thermoset materials, and other mechanisms known to those skilled in the art
  • Electric power to electronics 123 can also be provided in multiple ways as those skilled in the art will appreciate.
  • battery 121 can replaceable or be rechargeable by means of a cord such as a USB or micro-USB or any other ubiquitous power cord device.
  • Wireless and contactless power transfer methods known to those skilled in the art can also be utilized to re-charge battery 121.
  • the battery can also be completely removed/remote from the electronics, and placed in the handle for example.
  • the electric energy of the sensor can be used to recharge battery 121.
  • Capturing and utilizing power generated by piezoelectric devices in response to vibration is well known to those skilled in the art.
  • Sticker 1 10 can also incorporate a solar cell to capture energy from light as is well known to those skilled in the art.
  • A-Si thin film solar cells are particularly well suited to recharge energy storage devices when incorporated into flexible materials.
  • Battery 121 can also be a super capacitor or any other material capable of storing electric energy as will be apparent to those skilled in the art.
  • Electronics 123 can consist of a low noise charge amplifier 41 that converts the generated electric charge of sensor 113 into a voltage trace free of ambient noise as will be known to those skilled in the art.
  • Charge amplifier 41 can be integrated with electronics 123 or can be located closer to sensor 113 in order to reduce the influence of external noise.
  • overvoltage protection to protect electronics 123 known to those skilled in the art will also be utilized.
  • the amplified voltage trace from each sensor is then fed through an analog to digital converter to produce and digital representation of the voltage trace generated by the sensors, a ubiquitous process known to those skilled in the art. This digital signal is then fed to a microprocessor that has the ability to perform a range of signal processing steps on the trace to identify events of concern.
  • a modern microchip 42 combines Analog to Digital converter (A/D) and computational power as well as sufficient internal memory. It might be desirable to utilize external A/D's for higher frequency sampling. Additional sensors 40 such as accelerometers, gyro meters, magnetometers, microphones, cameras or any other instrument that can provide additional information can optionally be connected to microchip 42 as will be grasped by those skilled in the art.
  • A/D Analog to Digital converter
  • Additional sensors 40 such as accelerometers, gyro meters, magnetometers, microphones, cameras or any other instrument that can provide additional information can optionally be connected to microchip 42 as will be grasped by those skilled in the art.
  • Microchip 42 can be equipped with wireless signal communications device 44 that can communicate information wirelessly from electronics 123 to a third party receiver 46 located within range of the transmitting electronics.
  • Wireless communication receivers and transceivers 44 and 45 can be of a multitude of industry standards known to those skilled in the art, such as Bluetooth®, WiFi, Ultra- Wide Band WiFi, Zigby, laser etc.
  • Signal communications device 44 can also be a separate piece of hardware.
  • Third party device 46 such as a computer or a handheld device is equipped or connected to a wireless communications module 45 to receive signals from and transmit to electronics 123 as well as software or applications that can interpret and display the information transmitted from electronics 123.
  • Third party device 46 can also be equipped with an internal camera or connected to an extemal camera or series of cameras to enable the combination of visual data with the vibration information supplied by electronics 123.
  • the camera of a handheld device that is capable of taking high-speed images such as the slow-motion (Slo-mo) function of an iPhone camera can be used.
  • third party device 46 can also be connected to the broadcaster of the event in order to deliver content to the broadcaster or receive content in the form of audio, visual and other information from the broadcaster.
  • a specific objective of this invention is to combine the images from ultra-motion cameras set up around a sports stadium and calibrating the output from electronics 123 with the feed of these cameras for entertainment and officiating purposes. This entire process should be well known to those skilled in the art.
  • Microprocessor In deep sleep, between approximately 5 and 10 micro Amps - always
  • Microprocessor In operation, i.e. sampling data approximately 1.5 to 5.5 milliAmps. Duration of operation: 0.1 to 4 milliseconds.
  • Accel erometer 100 micro amps in slow/wait mode and approximately 500 in data acquisition mode (0.1 to 4 milliseconds)
  • the RF connection is approximately 1 milliAmp and can run approximately l/3rd of a second for 640 8-bit samples. This consumes approximately 330 microAmp seconds or 0.1 microAmp hours per event. Sending 12 samples instead of 640 will consume approximately 17 nanoAmp hours per use
  • the arrangement described herein can include rechargeable batteries as a power source.
  • the battery technology used herein can be highly variable— for example NiMH, Li-Poly, NiCd, hydrogen fuel cells, etc.
  • Recharging technologies can include solar and light-based, high-output photovoltaics, inductive charging, direct conductor connections, etc.
  • prior art dose not provide an adequate solution for communications between vibration sensors and third-party devices.
  • prior art refers to WiFi or Bluetooth® communication without providing any details of the process.
  • prior art is not specific with regard to the sampling frequency and the type of information that needs to be delivered from the vibration sensor to the third party device. The problem with previous approaches are as follow:
  • low frequency response accelerometers can be monitored by microchip 42 in a low power mode where no transmission or high data rate sampling is happening. However, in response to a predetermined set of events captured by the accelerometer the system can identify that the bat is in motion and that the player is about to make contact with the ball. Furthermore, the accelerometers can be used to identify if the player is merely tapping the bat on the ground, in which case data capturing will not be initiated, or swinging it freely, in which case data capture is enabled, as will be known to those skilled in the art. Microchip 42 will wake up and start to take and capture high frequency data from sensors 113 for a pre-determined period. Code 43 will manipulate and analyze the signals and determine information to be transmitted via wireless communication 44.
  • a comparator a device well known to those skilled in the art, can monitor the output from sensors 1 13 over conductive traces 1 11.
  • Comparators are ultra-low power devices that identify when the differential analog output between two traces is over a pre-determined limit. For instance off-the shelf comparators such as the MAX9027 can monitor two signals at 70kHz while consuming 1 ⁇ of power. Comparators that operate at higher frequencies are available but they consume more power. Once the comparators identify this event, it sends a digital signal to microchip 42 to initiate the collection of data. The duration of the data collection event is determined by code 43.
  • microchip 42 The events that can be captured by microchip 42 are maximum vibration amplitude, arrival time of vibration signal at specific sensor, frequency of vibration, duration of vibration, damping coefficient of vibration and others as known to those skilled in the art. This information can then be translated into a number of useful bits of information that can be transmitted to third party device 46. The following, not exhaustive list of parameters can be determined and calculated via this process: the power of impact of a ball on bat; whether or not there was impact between equipment and ball or other equipment; the location of impact between equipment; the type of equipment being impacted; the speed of the equipment at impact; the position of the equipment versus time; the flexing of equipment versus time etc. [0046] The events described above is determined and accessed via code 43 running on microchip 42.
  • Microchip 42 also determines the key parameters of these events to share via wireless communication 44.
  • the entire event does not need to be transmitted between communication devices 44 and 45, instead an abbreviated, information rich, low power transmission will indicate the type of event, the timing of the event and other useful parameters such as power and location.
  • an abbreviated, information rich, low power transmission will indicate the type of event, the timing of the event and other useful parameters such as power and location.
  • only essential data is transferred. This, in turn, will not only speed up communications between electronics 123 and third party device 46 but it will also conserve energy of the power source of electronics 123, thereby extending useful life of the entire device.
  • Fig. 4 shows a basic process 400 for operating the sensor arrangement and associated electronic component(s).
  • the sensor arrangement senses motion and/or contact between the equipment (e.g. bat) and another object (e.g. ball) in step 410. This is translated into an event that triggers a switch from a low-power mode to a high-power mode in step 420.
  • the vibrations that are propagated through the bat are then detected and processed by the sensor arrangement and associated electronic components in step 430. These are converted into data that are selectively transmitted to a receiver for further analysis in step 440.
  • Trace 531 in Fig. 5A was taken at a sample rate of 60kHz and thus contains more than 650 data points for the 1.1 ms duration of the event.
  • a threshold value 520 is set in the software to wake the recording system up when signal 531 passes through it. The system can also be set to wake up in response to a threshold being crossed by additional sensors 40 in Fig. 3 like an accelerometer. High speed data collection starts to record the data from sensors 113 at 60kHz including a small (100 point for example) buffer to ensure the beginning of the trace is captured. After a set time, the trace stops recording and signal 531 is stored in memory.
  • Simple analytical routines can pick the point 510 where the trace passes though threshold 520, reaches its maximum 514 and minimum 513, where it passes through the average offset 512, 514 and 516 as well as its first maximum or minimum 511 and additional local maxima 517 and 518 and minima 519, 521, 523 and
  • a pseudo curve 530 (Fig. 5B) by knowing only the order of the polynomial and the time and value stamps of each of the selected points. Therefore, microchip 42 in Fig. 3, running at a low data rate and conserving electrical energy, can wake up, record the data of concern, run analytics and pick areas of interest in the data. It needs a short burst of power to complete the entire exercise.
  • wireless communication device 44 also restricts power usage by utilizing less than 2% of the time that the transmitter has to be on.
  • third party device 46 with only 12 data points and the knowledge of the order of the polynomial, can create pseudo curve 530 that contains almost all the information of signal 531. This then enables the third party device to perform further analytics and analyses on pseudo curve 530 and compare it to other corves and events as required.
  • This strategy and how this method saves electrical power versus continuous high frequency monitoring and transmitting and how it removes the need for large scale data storage.
  • Pseudo curves 530 can be transmitted and reconstructed in short order from three or more sensors 1 13 on equipment 101. By comparing data points (510, 51 1, 512, 514,515,516, 517, 518, 519, 521 , 523 and 523 and pseudo curves 530 of the different sensors 113, triangulation can be utilized to determine the location of impact that introduced the vibrations.
  • the frequency of pseudo curve 530 can be determined by a simple FFT as know by those skilled in the art. This in turn can provide information on the type of impact, the stiffness of the equipment that was impacted and if there was any impact at all. The utility of this information is best illustrated when applied to the game of cricket where impacting the ball versus other pieces of equipment like a boot or pad will induce vibrations of distinctively different amplitude, vibration and damping. Furthermore, aerodynamic forces can introduce vibrations in the bat when the ball gets sufficiently close to the bat without touching it. These vibrations manifest themselves as sound in the atmosphere and can be misinterpreted as the ball touching the bat, leading to the erroneous dismissal of a batman if the ball is caught. The system described here will be able to identify the frequency of this aerodynamic induced vibration and will be able to distinguish it from when the ball actually makes contact with the bat.
  • the system and method of the illustrative embodiment provides an effective mechanism for providing vibration measurements in connection with handheld and similar sporting equipment that is unobtrusive and doers not detract from the function or aesthetics of the equipment.
  • the sensor serves as a generally desired indicia normally provided on such equipment.
  • the data generated by the sensor is useful and of sufficient accuracy to provide a wide range of useful analytic data for both real time monitoring or performance and post-usage analysis.
  • locations to which the senor can be applied are highly variable and multiple sensors can be applied at various locations on the equipment and can work in coordination or discretely based upon controlling circuitry that selects and/or combines signals in accordance with skill in the art.
  • the material of the equipment can be highly variable— e.g. wood, polymer, composite, metal or a combination thereof can be employed.
  • process and/or “processor” should be taken broadly to include a variety of electronic hardware and/or software based functions and components (and can alternatively be termed functional "modules” or “elements”).
  • a depicted process or processor can be combined with other processes and/or processors or divided into various sub-processes or processors. Such sub-processes and/or sub-processors can be variously combined according to embodiments herein.
  • any function, process and/or processor herein can be implemented using electronic hardware, software consisting of a non-transitory computer-readable medium of program instructions, or a combination of hardware and software.
  • various directional and dispositional terms such as “vertical”, “horizontal”, “up”, “down”, “bottom”, “top”, “side”, “front”, “rear”, “left”, “right”, and the like, are used only as relative conventions and not as absolute

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

L'invention concerne un capteur de vibrations en polymère souple, à haute fréquence et haute sensibilité qui est intégré à la partie décorative et au logo existant dans un équipement de façon à rendre le(s) capteur(s) discret(s). Une électronique de faible puissance ayant la capacité de capturer et d'analyser des signaux d'intérêt spécifiques est utilisée pour augmenter la durée de vie fonctionnelle du système et diminuer le nombre de recharges ou de changements de batterie par match. Des données de vibrations haute fréquence sont capturées et stockées localement sur l'équipement où un code défini par l'utilisateur peut analyser les données et sélectionner des paramètres d'intérêt spécifiques à envoyer, par l'intermédiaire de la liaison de communication sans fil, à un récepteur. Le récepteur a la capacité de capturer les données et de reconstituer des événements d'intérêt. Cette architecture réduit les exigences de puissance et de largeur de bande du dispositif tout en maintenant la fonctionnalité et la capacité de transmettre et de signaler des paramètres et des incidents d'intérêt.
PCT/US2017/035317 2016-05-31 2017-05-31 Système et procédé de détection de vibrations haute fréquence sur un équipement sportif WO2017210367A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA3026071A CA3026071A1 (fr) 2016-05-31 2017-05-31 Systeme et procede de detection de vibrations haute frequence sur un equipement sportif
EP17807446.4A EP3465111A4 (fr) 2016-05-31 2017-05-31 Système et procédé de détection de vibrations haute fréquence sur un équipement sportif
AU2017273700A AU2017273700A1 (en) 2016-05-31 2017-05-31 System and method for sensing high-frequency vibrations on sporting equipment

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201662343632P 2016-05-31 2016-05-31
US62/343,632 2016-05-31
US15/608,965 2017-05-30
US15/608,965 US10527487B2 (en) 2016-05-31 2017-05-30 System and method for sensing high-frequency vibrations on sporting equipment

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WO (1) WO2017210367A1 (fr)

Cited By (2)

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CA3026071A1 (fr) 2017-12-07
EP3465111A1 (fr) 2019-04-10
AU2017273700A1 (en) 2019-01-17

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