EP4091682B1 - Erkennung von pfiffen einer trillerpfeife - Google Patents

Erkennung von pfiffen einer trillerpfeife Download PDF

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Publication number
EP4091682B1
EP4091682B1 EP22169283.3A EP22169283A EP4091682B1 EP 4091682 B1 EP4091682 B1 EP 4091682B1 EP 22169283 A EP22169283 A EP 22169283A EP 4091682 B1 EP4091682 B1 EP 4091682B1
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EP
European Patent Office
Prior art keywords
whistle
microphone
referee
analysis
amplitude
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EP22169283.3A
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English (en)
French (fr)
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EP4091682A1 (de
Inventor
François BOSSARD
Meaban KOECHLIN
Francis COLUMEAU
Laurent Marcotte
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Bodet Time & Sport
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Bodet Time & Sport
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Publication of EP4091682A1 publication Critical patent/EP4091682A1/de
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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
    • A63B71/0616—Means for conducting or scheduling competition, league, tournaments or rankings
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
    • G07C1/22—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people in connection with sports or games
    • G07C1/28—Indicating playing time
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K5/00—Whistles
    • 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
    • A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B2071/0658—Position or arrangement of display
    • A63B2071/0661—Position or arrangement of display arranged on the user
    • 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
    • A63B2220/62—Time or time measurement used for time reference, time stamp, master time or clock signal
    • 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
    • A63B2220/808—Microphones
    • 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
    • A63B2225/50—Wireless data transmission, e.g. by radio transmitters or telemetry

Definitions

  • the present invention relates to a method for detecting a whistle from a referee of a sporting event.
  • WO 2012/01275 A1 describes a system for detecting a whistle from a referee of a sports match, comprising a microphone designed to provide a signal and an analysis device designed to analyze the signal to detect the whistle.
  • the analysis consists of comparing a signal envelope with a predefined envelope.
  • the document DE 27 16 717 A1 attempts to determine whether a perceived sound is ambient or may come from a referee's whistle, using microphones distributed around a pitch.
  • the invention may further include one or more of the following optional features, in any technically possible combination.
  • the analysis comprises: - a determination of first and second amplitudes of the first and second signals, respectively; and - a comparison of the first and second amplitudes.
  • the first and second amplitudes are compared to determine whether a difference between the first and second amplitudes is greater than a predefined threshold.
  • the first and second microphones are installed on the referee so that, when the referee blows the whistle, the second microphone is below the first microphone and the first and second amplitudes are compared to determine whether the first amplitude is greater than the second amplitude.
  • the method further comprises a comparison of the first amplitude to a predefined threshold.
  • the first microphone is installed so as to be less than 5 cm from the whistle when the whistle is used, preferably between 2 and 3 cm.
  • the first microphone is attached to the referee's whistle so as to remain less than 5 cm from the whistle.
  • the second microphone is attached to the body of the referee, for example to a belt of the latter.
  • the analysis of the first and second signals is carried out by an analysis device worn by the referee.
  • the method further comprises a frequency analysis of the second signal.
  • a microphone can be any acoustic-electric transducer.
  • the installation 100 firstly comprises a detection system 102 designed to detect a whistle of the sporting event. More precisely, in the example described, the acoustic signal is a whistle emitted by a whistle 104 of a referee 106 of the sporting event, signaling for example a stoppage or a resumption of playing time.
  • the detection system 102 is further designed to transmit, preferably wirelessly, a detection message resulting from the detection of the whistle.
  • the whistle 104 is for example attached to a strap 108 which can be worn around the neck of the referee 106.
  • the detection system 102 comprises, in the example described, a main housing 110 and first and second microphones 112, 113.
  • the first microphone 112 is, in the example described, external to the main housing 110 and for example connected to this last by a wired connection 114. Alternatively, a wireless connection could be used between the first microphone 112 and the main housing 110.
  • the second microphone 113 is located, in the example described, in the main housing 110. Alternatively, it could be located outside the main housing 110, for example fixed to the latter.
  • the detection system 102 is preferably portable in order to be worn by the referee 106.
  • the microphone 112 is for example attached to the strap 108 or directly to the whistle 104, while the main housing 110 includes a system of attaches (not shown) to the body of the referee 106, that is to say on any part of the body of the referee except the head and neck of the referee 106.
  • the attachment system can be attach directly to the body of the referee or indirectly, on clothing of the referee 106, for example to the belt of the referee 106.
  • the attachment system comprises for example a clip for attaching to the belt.
  • the first microphone 112 is located close to the whistle 104, for example less than 5 cm, preferably between 2 and 3 cm, while the second microphone 113 is located below from the first microphone 112 and, for example at least 20 cm, preferably at least 40 cm, further from the whistle 104 than the first microphone 112.
  • “Below” means that the second microphone 113 is located at a height relative to the ground, lower than the first microphone 113, for example at least 20 cm, preferably at least 40 cm lower.
  • the first microphone 112 will be called “near microphone” and the second microphone 113 will be called “far microphone”.
  • the installation 100 further comprises a receiver 118 and a stopwatch 120, for example game time, connected to each other, for example by a wired connection 122.
  • the receiver 118 is designed to receive the detection message and transmit it to the timer 120.
  • the latter is in particular designed, in response to receipt of the detection message, to stop or restart.
  • the microphones 112, 113 are designed to respectively provide first and second signals S1, S2, for example analog or digital, representative of respective measurements of the sound environment.
  • the detection system 102 further comprises a device 204 for analyzing the signals S1, S2 to detect a whistle in the sound environment.
  • the analysis device 204 includes bandpass filters 205, 206 to respectively filter the signals S1, S2.
  • these bandpass filters 205, 206 have a bandwidth of between 3 kHz and 5 kHz.
  • the bandwidth ranges from 3.25 kHz to 4.75 kHz.
  • the analysis device 204 further comprises, when the signals S1, S2 are analog, analog-digital converters 208, 210 for converting the filtered signals into digital signals S'1, S'2. Alternatively, filtering could be performed after analog-to-digital conversion.
  • the analysis device 204 further comprises a unit 212 for analyzing the digital signals S'1, S'2 designed to detect the whistle from the analysis of the digital signals S'1, S'2 and, in this case, provide a detection message.
  • the analysis unit 212 comprises a computer, that is to say a computer system comprising a data processing unit 212A (such as a microprocessor) and a main memory 212B (such as 'a RAM memory, from English "Random Access Memory”) accessible by the processing unit 212A.
  • a data processing unit 212A such as a microprocessor
  • main memory 212B such as 'a RAM memory, from English "Random Access Memory"
  • the computer system further comprises for example a network interface (not shown) and/or a computer-readable medium (not shown), such as for example a local medium (such as a local hard disk or a FLASH memory) or else a remote medium (such as a remote hard disk and accessible via the network interface through a communication network (not shown) or even a removable medium (such as a USB key, from the English “ Universal Serial Bus”) readable by means of an appropriate reader (not shown) of the computer system (such as a USB port).
  • a computer program (212C) containing instructions for the processing unit 212A is recorded on the support and/or downloadable via the network interface. This computer program 212C is for example intended to be loaded into the main memory 212B, so that the processing unit executes its instructions.
  • the instructions will be described below as organized in software modules. However, this presentation does not prejudge the form of the computer program 212C, which can be any.
  • the term “computer” is to be taken in the broad sense and covers, for example, a microcontroller, as well as a smart phone (from the English “smartphone”).
  • all or part of the modules could be implemented in the form of hardware modules, that is to say in the form of an electronic circuit, for example micro-wired, not involving a computer program.
  • the detection system 102 further comprises a wireless transmission device 214, for example placed in the housing 110, designed to transmit the detection message D to the receiver 118.
  • the analysis unit 212 firstly comprises an acquisition module 302 designed to acquire consecutive samples, for example a predefined number, simultaneously for the digital signal S'1 and the digital signal S'2, i.e. that is to say on the same time interval for the two digital signals S'1, S'2. These samples form a T1 frame for the digital signal S'1 and a T2 frame for the digital signal S'2.
  • each frame T1, T2 comprises at least 100 samples, for example 512 consecutive samples.
  • the analysis unit 212 can be designed to carry out an amplitude analysis of at least one of the digital signals S'1, S'2.
  • the analysis unit 212 further comprises an amplitude determination module 304 designed to respectively determine amplitudes A1, A2 of the frames T1, T2.
  • each amplitude A1, A2 is equal to the effective value (from the English “Root Mean Square”, or RMS) of the samples of the respective frame T1, T2.
  • the analysis unit 212 further comprises, in the example described, three amplitude analysis modules 306, 308, 310.
  • the first amplitude analysis module 306 is designed to compare the amplitude A1 coming from the nearby microphone 112 with a first predefined threshold V1, and to provide a first amplitude analysis result RA1, positive when the amplitude A1 is greater than threshold V1 and negative otherwise.
  • a positive result indicates the presence of a noise loud enough to be a whistle. This analysis thus makes it possible to avoid untimely detections which could, for example, come from the referee's breath when running.
  • the threshold V1 is for example fixed according to the type of close microphone 112 used, the minimum sound level of the type of whistle 104 likely to be used and the distance between the close microphone 112 and the whistle 104 when using the detection system 102.
  • the close microphone 112 is fixed on the strap 108 at a distance of between 2 and 3 cm from the whistle 104, which is taken into account to set the threshold V1.
  • the second amplitude analysis module 308 is designed to compare the amplitudes A1, A2 with each other, and to provide a second amplitude analysis result RA2, positive when the amplitude A1 coming from the microphone near 112 is greater than the amplitude A2 coming from the distant microphone 113 and negative otherwise.
  • the third amplitude analysis module 310 is further designed to compare this absolute difference D to a second predefined threshold V2, and to provide a third amplitude analysis result R3, positive when the absolute difference DA is greater than the threshold V2 and negative otherwise.
  • the comparison of the amplitudes A1, A2 is a simple solution for detecting whether the source of the sound is compatible or not with a whistle from the referee 106 and does not require, in particular, complex calculations of difference of propagation time to try to locate the position of the sound source, in order to determine if this position is compatible with the position of the whistle 104 when it is used.
  • the threshold V2 is for example set according to the respective locations of the two microphones 112, 113 provided on the referee (strap - belt in the example described).
  • the analysis unit 212 can be designed to carry out, in addition to an amplitude analysis or instead, a frequency analysis on at least one of the frames T1, T2.
  • the latter is only carried out from the frame T2 coming from the remote microphone 113, because the analog signal S1 supplied by the nearby microphone 112 is likely to be saturated, which could distort the frequency analysis. by introducing parasitic frequency peaks which do not really exist.
  • the analysis unit 212 further comprises a frequency conversion module 312 designed to convert the frame T2 coming from the remote microphone 113 in a frequency domain in order to obtain a frequency spectrum F2.
  • the frequency spectrum F2 is for example obtained by Fourier transform of the frame T2, for example a fast Fourier transform (FFT).
  • the analysis unit 212 further comprises, still in the example described, a peak search module 314, designed to search for frequency peaks P2 in the frequency spectrum F2. Each peak found is for example defined by an amplitude and a frequency at which it is found. Peaks outside the passband of bandpass filter 206 may also be found.
  • the analysis unit 212 further comprises, in the example described, three frequency analysis modules 316, 318, 320.
  • the first frequency analysis module 316 is designed to determine the highest amplitude among the amplitudes of the peaks present in a predefined frequency interval, preferably equal to the bandwidth of the bandpass filter 206.
  • the first frequency analysis module frequency analysis 316 is further designed to compare this highest amplitude to a third predefined threshold V3, and to provide a first frequency analysis result RF1, positive if the threshold V3 is exceeded and negative otherwise.
  • the frequency analysis result RF1 is positive even if there are other peaks detected outside the frequency range of the whistle 104, which generally extends from 2800 Hz to 4500 Hz, presenting close amplitudes. This makes it possible to detect a very powerful peak, drowned in very high ambient noise. It is thus considered that this very powerful peak corresponds to the fact that the referee 106 blows loudly into the whistle 104 to cover the ambient noise.
  • the second frequency analysis module 318 is designed to compare the amplitude of each peak found in a predefined frequency interval, preferably equal to the bandwidth of the bandpass filter 206, with a fourth predefined threshold V4, and to provide a second frequency analysis result RF2, positive if the amplitude of each peak found is greater than the threshold V4 and negative otherwise.
  • the threshold V4 is at least twice lower than the threshold V3, or, in other words, the threshold V3 is at least twice higher than the threshold V4. This detection corresponds to a normal situation.
  • the frequency interval in particular the bandwidth
  • the frequency interval is chosen to be included in the frequency bands of the whistles usually used.
  • the third frequency analysis module 320 is designed to search, in a predefined frequency interval, equal for example to the bandwidth, among the peaks found P2, two peaks of the same frequency (or of close frequency, for example close to 20 % close) of respectively the current T2 frame and the previously acquired T2 frame whose sum of amplitudes is greater than a fifth predefined threshold V5.
  • the third frequency analysis module 320 is further designed to determine whether noise is present in the current T2 frame, as well as in the previously acquired T2 frame.
  • the third frequency analysis module 320 is also designed, optionally, to determine if peaks (for example of amplitude greater than a certain threshold) are present outside the passband.
  • the third frequency analysis module 320 is then designed to provide a third frequency analysis result RF3, positive (i) if there are two consecutive peaks whose sum of amplitudes is greater than the threshold V5, (ii) if no noise is not detected in the current T2 frame and in the previous one and, where applicable, (iii) if there are no peaks outside the passband, and negative otherwise.
  • the purpose of this analysis is to detect a weak whistle in a calm environment.
  • the analysis unit further comprises a synthesis module 322 designed to detect or not the whistle depending on at least part of the analysis results RA1, RA2, RA3, RF1, RF2 and RF3. Indeed, it is apparent from the preceding description that each analysis result is positive when the signals S1, S2 are compatible with a whistle, and negative otherwise.
  • the synthesis module 322 therefore combines these analysis results to deduce whether or not the whistle is detected. Certain analysis results, such as analysis results RA1, RA2, RA3, can be prohibitive, that is to say that the synthesis module 322 is designed not to detect a whistle as soon as one of these analysis results are negative.
  • the synthesis module 322 is designed to provide an overall RF frequency analysis result from the frequency analysis results RF1, RF2 and RF3, positive when at least one of the latter is positive. and negative otherwise (“ ⁇ 1” block on the Figure 3 ).
  • the synthesis module 322 is further designed to detect a whistle when all the results of amplitude analysis RA1, RA2, RA3 and RF frequency analysis are positive, and not to detect a whistle in the otherwise (“&” block on the Figure 3 ). In this case, the synthesis module 322 does not need all the results RA1, RA2, RA3 and RF to conclude that there is no whistle, it is enough to have a single negative result.
  • the analysis unit 212 is preferably designed to first successively activate the amplitude analysis modules 306, 308, 310 to obtain the results RA1, RA2, RA3, before activating modules 312 to 320 relating to frequency analysis if all results RA1, RA2, RA3 are positive.
  • the other modules and in particular those for frequency conversion 312 and peak search 314 which may involve significant calculations.
  • the detection device 102 is installed on the referee.
  • the first microphone 112 is installed on the referee 106, for example as described above, so that the first microphone 112 is less than 5 cm from the whistle 104 when the whistle is used, preferably between 2 and 3 cm, and so that the second microphone 113 is at least 20 cm, preferably 40 cm, further from the whistle 104 than the first microphone 112 when the whistle 104 is used.
  • the microphones 112, 113 provide their respective signals S1, S2.
  • the analog signals S1, S2 are filtered and digitized to provide the digital signals S'1, S'2.
  • the acquisition module 302 provides the two current frames T1, T2.
  • the amplitude determination module 304 provides the amplitudes A1, A2 of the frames T1, T2.
  • the first amplitude analysis module 306 compares the amplitude A1 coming from the nearby microphone 112 with the threshold V1. If the amplitude A1 is not greater than the threshold V1, the result RA1 is negative and the synthesis module 322 detects an absence of whistle sound. Process 400 then returns to step 404. Otherwise, process 400 continues.
  • the second amplitude analysis module 308 compares the amplitudes A1, A2 with each other. If the amplitude A1 (near microphone 112) is not greater than the amplitude A2 (far microphone 113), the result RA2 is negative and the synthesis module 322 detects an absence of whistle sound. Process 400 then returns to step 404. Otherwise, process 400 continues.
  • the third amplitude analysis module 310 compares the absolute difference DA between the amplitudes A1, A2 with the threshold V2. If the absolute difference DA is not greater than the threshold V2, the result RA3 is negative and the synthesis module 322 detects an absence of whistle sound. Process 400 returns to step 404. Otherwise, process 400 continues.
  • the frequency conversion module 312 provides the frequency spectrum F2 of the frame T2 coming from the remote microphone 113.
  • the frequency peak search module 314 provides the frequency peaks P2 of the frequency spectrum F2.
  • the first frequency analysis module 316 determines the highest amplitude among the amplitudes of the peaks found in a predefined frequency interval, and compares it to the threshold V3. If threshold V3 is exceeded (positive RF1 result), a whistle is detected by the synthesis module 322 and the method 400 proceeds to step 428. Otherwise, the method 400 continues.
  • the second frequency analysis module 318 compares the amplitude of each peak found in a frequency interval with the threshold V4. If the amplitude of each peak found is greater than the threshold V4 (positive RF2 result), a whistle is detected by the synthesis module 322 and the method 400 goes to step 428. Otherwise, the method 400 keep on going.
  • the third frequency analysis module 320 checks the three conditions described above and, if they are all verified, provides a positive RF3 result. In this case, a whistle is detected by the synthesis module 322 and the method 400 goes to step 428. Otherwise, no whistle is detected by the synthesis module 322, the method 400 returns in step 404.
  • the transmission module 214 transmits the detection message D and the receiver 118 receives it and transmits it to the timer 120.
  • the stopwatch 120 stops or restarts depending on its previous state.
  • the process then returns to step 404 to obtain new frames T1, T2.
  • the analysis is sufficiently fast so that the new frames T1, T2 directly follow the previous frames T1, T2, that is to say that the new frames T1, T2 begin at the samples directly following the previous frames T1, T2.
  • the wrist strap 108 could be attached to the referee's wrist.
  • the microphone 112 could be at certain times close to the microphone 113, or even below, when the referee is not using his whistle and is holding arms alongside the body.
  • a sound from the ground such as a shoe squeak
  • the RA3 result of module 310 should be negative, due to the proximity of the two microphones 112, 113, leading to the absence of whistle detection.
  • the analysis unit 212 could not include an analysis module designed to compare a characteristic of the two signals, but rather modules each dedicated to the analysis of either the signal S1 or the signal S2, the results then being processed by the synthesis module 320 to detect a whistle or its absence.
  • modules 308 and 310 could be omitted.
  • the analysis would indeed concern the first signal S1 (module 306) and the second signal S2 (modules 316, 316, 320) but without comparison between the signals S1, S2.
  • the detection system described above is portable in order to equip the referee moving on the playing field of the sporting event, it could, in a variant which is not part of the invention , can also be used in a fixed manner, for example to detect the whistle of a referee present at the scorer's table, on the side of the sports match.
  • the detection system could be placed at least partly on the scorer's table, with the two microphones preferably spaced apart from each other as described above.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
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  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Claims (10)

  1. Verfahren (400) zum Erkennen eines Pfeifens einer Trillerpfeife eines Schiedsrichters (106) einer Sportbegegnung, umfassend:
    - das Anbringen (402) eines ersten und eines zweiten Mikrofons (112, 113) am Schiedsrichter (106), sodass, wenn der Schiedsrichter (106) eine Trillerpfeife (104) verwendet, sich das zweite Mikrofon (113) weiter von der Trillerpfeife (104) entfernt befindet als das erste Mikrofon (112); und
    - die Analyse eines ersten und eines zweiten Signals (S1, S2), die von dem ersten bzw. dem zweiten Mikrofon (112, 113) bereitgestellt werden, um zu bestimmen, ob ein wahrgenommener Ton aus der Umgebung kommt oder von der Trillerpfeife (104) stammen kann.
  2. Verfahren (400) nach Anspruch 1, wobei die Analyse umfasst:
    - eine Bestimmung (410) einer ersten und einer zweiten Amplitude (A1, A2) des ersten bzw. des zweiten Signals (S1, S2); und
    - einen Vergleich (414, 416) der ersten und der zweiten Amplitude (A1, A2).
  3. Verfahren (400) nach Anspruch 2, wobei die erste und die zweite Amplitude (A1, A2) verglichen werden (416), um zu bestimmen, ob eine Differenz zwischen der ersten und der zweiten Amplitude (A1, A2) größer als ein vorab definierter Schwellenwert ist.
  4. Verfahren (400) nach Anspruch 2 oder 3, wobei das erste und das zweite Mikrofon (112, 113) am Schiedsrichter (106) angebracht werden, sodass, wenn der Schiedsrichter (106) die Trillerpfeife (104) verwendet, das zweite Mikrofon (113) sich unterhalb des ersten Mikrofons (112) befindet, und wobei die erste und die zweite Amplitude (A1, A2) verglichen werden (414), um zu bestimmen, ob die erste Amplitude (A1) größer ist als die zweite Amplitude (A2).
  5. Verfahren (400) nach einem der Ansprüche 2 bis 4, weiter umfassend einen Vergleich (412) der ersten Amplitude (A1) mit einem vorab definierten Schwellenwert.
  6. Verfahren (400) nach einem der Ansprüche 1 bis 5, wobei das erste Mikrofon (112) derart angebracht wird, dass es sich weniger als 5 cm von der Trillerpfeife (104) entfernt befindet, wenn die Trillerpfeife verwendet wird, vorzugsweise zwischen 2 und 3 cm.
  7. Verfahren (400) nach einem der Ansprüche 1 bis 6, wobei das erste Mikrofon (112) derart an der Trillerpfeife (104) des Schiedsrichters (106) befestigt wird, dass es weniger als 5 cm von der Trillerpfeife (104) entfernt bleibt.
  8. Verfahren (400) nach einem der Ansprüche 1 bis 7, wobei das zweite Mikrofon (113) am Körper des Schiedsrichters (106), beispielsweise an einem Gürtel dieses Letzteren, oder in einem Signalverarbeitungsgehäuse (110) befestigt wird.
  9. Verfahren (400) nach einem der Ansprüche 1 bis 8, wobei die Analyse des ersten und des zweiten Signals (S1, S2) mithilfe einer von dem Schiedsrichter (106) getragenen Analysevorrichtung (204) durchgeführt wird.
  10. Verfahren (400) nach einem der Ansprüche 1 bis 9, weiter umfassend eine Frequenzanalyse (420, 422, 424, 426) des zweiten Signals (S2).
EP22169283.3A 2021-05-20 2022-04-21 Erkennung von pfiffen einer trillerpfeife Active EP4091682B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2105278A FR3123002B1 (fr) 2021-05-20 2021-05-20 Détection de coups de sifflet

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EP4091682A1 EP4091682A1 (de) 2022-11-23
EP4091682B1 true EP4091682B1 (de) 2024-02-14

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US5293354A (en) * 1993-08-12 1994-03-08 Costabile Michael J Remotely actuatable sports timing system
EP1043846A2 (de) * 1999-04-05 2000-10-11 Phonic Ear, Inc. Drahtlose Übertragungsvorrichtung
FR2962240B1 (fr) 2010-06-30 2013-03-22 Adeunis Rf Installation de controle du temps de jeu d'un evenement sportif
US10504300B2 (en) * 2015-09-04 2019-12-10 Michael J Costabile System for remotely starting and stopping a time clock in an environment having a plurality of distinct activation signals

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EP4091682A1 (de) 2022-11-23
FR3123002A1 (fr) 2022-11-25

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