摘要:
A timing method for a sports competition at the same time on different sites (4) around the world. In a first phase, all time bases of the timing devices, of a start coordinator device (3) and of each site are synchronised. Next, a measurement of the transmission times between the start coordinator device and each site is performed to determine a maximum transmission time. The start coordinator device establishes a start time equal to the time of the date of each site and while adding a time difference longer than the determined maximum transmission time. The start time is adapted to each site where the competition takes place to automatically order, by each timing device, the start of the competition at the same time on each site and on the base site of the start coordinator device to have a sports competition taking place live on all competition sites.
摘要:
A method for calculating the position of an athlete, referred to as target, on a sports field, including estimating an approximate position of the target using a radio-based positioning system, the system including tracking sensors attached to several athletes on the sports field and antennas installed around the sports field, defining a search space around the approximate position, detecting an athlete in the search space using an optical-based positioning system, the system including cameras installed above and/or around the sports field and image recognition device, determining an accurate position of the detected athlete, attributing the accurate position to the target.
摘要:
A system for timing a basketball match includes a timing device linked to an optical ball detector and/or linked to at least one visual ball detector for detecting a ball in a basketball hoop. The optical ball detector includes an optical sensor positioned near or on the basketball hoop, and the visual detector includes at least one kinetic camera for detecting the motion of the ball in the basketball hoop with processing of the signal. A method for timing the basketball match, using the system, includes starting to count game time by activating the timing device, capturing, using the optical sensor and/or the kinetic camera, the passage of the basketball ball into a rim of the basketball hoop, and transmitting at least one signal detecting the passage of the ball into the basketball hoop to the timing device in order to stop game time.
摘要:
The method makes it possible to perform the measurement of at least one crossing time of a moving object on a line of passage via a personalized transponder placed on the object. The method includes the steps of: generating a low frequency electromagnetic field signal, activating the transponder module on reception of the modulated synchronization command in the electromagnetic field signal, measuring the intensity of the electromagnetic field signal without modulation captured by the activated transponder module at regular time intervals, transmitting directly in a measurement signal via the transponder module each intensity measurement or a packet of intensity measurements to the decoder unit for determination of a crossing time of the line of passage.
摘要:
The process enables a time of an athlete in a hurdle race to be measured or predicted with a personalized transponder module positioned on the athlete and a base station. The transponder module comprises a receiver unit, a processing unit, a transmitter unit for data signals and a motion sensor to supply measurement signals to the processing unit. The module is activated by a wake-up signal and a measurement of the movement is conducted by the sensor after the start of the race on passage of each hurdle. The data signals are transmitted to the base station and determination of a passage time over each hurdle is conducted.
摘要:
A transponder module of a system for measurement of a race time includes a time base in a microcontroller, which is activated upon receipt of a low-frequency electromagnetic field signal from a transmission antenna of a measuring system which is disposed at the level of a line of passage. The microcontroller, once woken up, is capable of measuring several successive intensities of the captured electromagnetic field in order to reconstruct a curve of the electromagnetic field and to determine a crossing time on the line of passage of the transponder module with the activated time base thereof in order to transmit, to a decoder unit of the measuring system, a signal of the result of the time of crossing determined by the microcontroller.
摘要:
Color filter for a digital sensor formed of a two-dimensional array of pixels, each pixel corresponding to a given color. The pixels are arranged in at least one base pattern repeated over a given surface, which has at least three pixels of three different colors. The color filter is characterized in that it includes a plurality of distinct base patterns, each of these patterns having predefined optical properties of sensitivity, of color quality and of resolution, and in that it is subdivided into a plurality of distinct areas, each corresponding to a two-dimensional sub-array of pixels. Each of the base patterns is repeated several times along each dimension of the two-dimensional sub-array, respectively over the entirety of a corresponding area.
摘要:
Method for the adjustment of a photo finish camera including a matrix colour filter, characterized in that the method includes the following steps: a first step of selecting a basic pattern having optical properties of sensitivity, of colour quality and of resolution which are predefined according to race parameters; a second step of software selection of a set of adjacent columns whose number corresponds to the width of said selected basic pattern; a third step of centring said set of adjacent columns on the finish line.
摘要:
The data and/or command signal transmission device includes a first signal generator connected to a first antenna arrangement, a second signal generator connected to a second antenna arrangement, a third signal generator connected to a third antenna arrangement, and a synchronisation circuit. The synchronisation circuit performs data amplitude modulation by combining the signals transmitted by the antenna arrangements. The signals transmitted by the first and third antenna arrangements are in-phase in a first stable modulation state and 180° out of phase in a second stable modulation state. In a modulation state transition phase, the first and third signals delivered by the first and third generators are at a different frequency from the carrier frequency of the signals delivered by the second generator. The resonance frequency of the first and third antenna arrangements is also adapted in the transition phase.
摘要:
The display system includes a device for memorizing the time when each competitor (C.sub.i) in a sequential start race passes a detector (D.sub.k); a device (12) for classifying competitors (C.sub.j) as they pass each detector (D.sub.k) to establish for each detector (D.sub.k) a list of competitors according to their time; and a processing device (20) which operates when a competitor (C.sub.i) passes a detector (D.sub.k): to determine the instantaneous ranking of competitor (C.sub.i) reaching the detector (D.sub.k) by comparing his time of passage with the times of passage of a plurality of previously classified competitors (C.sub.j), to calculate the time differences R and A between the time of passage of competitor (C.sub.i) and the times of passage of competitors (C.sub.j) of immediately adjacent rankings, to convert each time difference R and A into a distance using a conversion function f, and to display, in a predetermined display area (28), a symbol (30) representing competitor (C.sub.i) and symbols (32, 34) representing each of the competitors (C.sub.j) of immediately adjacent rankings, while spacing their symbols (32, 34) apart as a function of the calculated distances.