FR3009970A1 - TRAINING TARGET FOR THE ANALYSIS OF THE IMPACT OF A BULLET - Google Patents

Abstract

The present invention relates to a training target for analyzing the impact of a bullet comprising electronic sensors, characterized in that it consists of a rigid surface that is at least partially transparent at a viewing zone. a display, and in that it comprises a computer for determining the position of the impact and the relative speed of the bullet relative to the target at the moment of impact, from the signals delivered by said electronic sensors , to control said display.

Description

FIELD OF THE INVENTION The present invention relates to the field of sport and more particularly to equipment for providing the player or the athlete with information concerning the location and measurement of the speed of a ball. Such equipment is used in sports games to provide information on the accuracy of participants and progress of training. Many sports games are based on the ability of a player to throw or shoot with precision and power, sometimes while moving, objects such as baseballs, footballs, soccer balls, basketballs, pucks of hockey, golf balls, frisbee (trademark), arrows or darts, etc.

STATE OF THE ART In the state of the art, various solutions are known for providing the player with information on his throwing ball or sports accessory. International patent application WO 2013005064 discloses a point marking system for archery capable of detecting the points by an electronic method, and allowing evaluation and display of the data obtained. The system includes a target having a detection unit that detects the impact of an arrow and determines its position, as well as a processing and evaluation unit connected by cable or wireless link, and a communication unit. display. The detection unit forms the frame or is placed in the target frame, and the detectors or distance measuring devices for determining the position of the on-target shields are mounted on position detection carriages which move in the vicinity of the target. XY directions, driven on the XY coordinates by a method selected from known methods, along corresponding straight lines.

The US patent application US2005187036 describes a device for equipping a sport, comprising: an impact surface; an impact surface frame that supports the impact surface; one or more impact detection sensors or sensors operatively mounted on or near the impact or weft surface of the impact surface, and a location and / or the measurement module which correlates the data from the impact detection sensor to the speed of an object detected by the sensor, the detection of an object impacting the surface by the probe, the detection of a location of a object impacting the impact surface by the sensor, or a combination thereof. US patent application US 20050187036 discloses a drive aid system. US patent application US2004063521 discloses a sports training device with radar. German patent DE29902196 discloses another device solution for detecting the position and impact velocity of a bullet on the device panel, which comprises a panel with three first sensors arranged in three different positions on the front side of the device. this, so as to detect the respective distance between the impact position of the ball on the panel and the first sensors. A display board is connected to one side of said panel and electrically connected to said first three sensors so as to display the impact position data thereon. An armature extends from the front side of the panel and has second sensors connected thereto, so as to detect the speed of the ball by comparing the time the ball moves between the second sensors and the panel. .

The French patent FR2747578 relates to a device for receiving a ball or a balloon, to amortize it and then send it back to the player. It comprises a front face, in places recessed to allow the ball to enter, a recuperator disposed behind the front face to block the ball and an inclined floor disposed at the base of the recuperator to return the ball to the player. A damping wall can be inserted between the front face and the recuperator. An intermediate sloping floor is disposed above the floor. US patent application US 20090291782 discloses another football-golf game with electronic score and the detection system. Disadvantages of the Prior Art The various solutions of the prior art are cumbersome to implement and poorly adapted to rapid positioning of the target for impromptu training. Solution Provided by the Invention The present invention overcomes the limitations of the prior art aids by providing a solution of targets that automatically detect, locate the impact, and determine the velocity of the bullet, suitable for rapid and stable positioning. To this end, the invention relates, in its most general sense, to a training target for the analysis of the impact of a bullet comprising electronic sensors, characterized in that it consists of a partially transparent display of a display, a rigid surface at least at a zone of and in that it comprises a calculator for determining the position of the impact and the relative velocity of the ball relative to the target at the time of the impact, from the signals delivered by said electronic sensors, for controlling said display. Advantageously, said rigid structure is articulated with respect to a support and comprises a compressed jack during a shot ensuring after the impact the repositioning of the target to receive a new shot.

According to a variant, the target according to the invention comprises a ballast formed by an empty box resting on feet. According to another variant, it comprises N series of curved teeth, N being between 2 and 4, each of the series corresponding to a different tooth height, said series of teeth being each arranged at 360 / N degrees around the axis of the teeth. each foot of the structure, with the end of the teeth pointed towards the rear of the structure, to prevent slippage of the target. N is advantageously equal to 3. According to another variant, the target according to the invention further comprises a remote display connected in wireless connection. According to another variant, it further comprises a conically shaped goal net whose end is at target height in order to allow the balloon to be returned to the activity zone. DETAILED DESCRIPTION OF AN EMBODIMENT The present invention will be better understood on reading the description which follows, relating to nonlimiting examples of embodiment, in which: FIG. 1 represents a front view of a first exemplary embodiment FIG. 2 represents a view of an alternative target solution according to the invention; FIG. 3 represents another alternative target solution according to the invention. The target according to the invention is constituted by a plate (1) made of a transparent material, for example glass or plexiglass. On the rear face of this plate (1) are fixed four vibration sensors (2 to 5). The impact of a bullet at a point (7) of the plate (1) causes vibrations picked up by the sensors (2 to 5). The vibration signals are analyzed by a computer to determine the X-Y position of the impact and the speed of the impact. The location of the impact is determined by measuring the arrival times of a solid wave to various sensors (or the load or the pressure difference at the sensors). The speed is determined by measuring the energy detected by the sensors. The sensors (2 to 5) can be, for example, glued or mechanically attached to the plate (1). The sensor (s) may include, for example, a piezoelectric element or a strain gage device that converts a mechanical sound wave, a pressure wave, or a mechanical strain field into an analog electrical signal. The speed measuring module may comprise an amplifier that amplifies the signals from the sensors as well as a high-pass and low-pass filter for filtering the signal, an analog-to-digital converter that converts an analog signal from the or digital data sensors, and software that analyzes the data. The apparatus may also include a visible user display device coupled to the location and / or the speed measurement module which, during operation of the apparatus, displays the digital data, a visible transformation by the user. user of digital data, or digital data analysis A display (6) at the rear of the plate (1) displays the result of the processing (speed of the bullet, point of impact (7), as well as additional information such as the accuracy of the impact or series of impact, by determining the gap between the center of the plate and the impact point (s). (5) Peripheral sensors (8) are designed to detect balls passing next to the plate (1).

Figure 2 shows an alternative embodiment, wherein the display (6) occupies the entire rear surface of the plate (1). The impact is visualized by a graphical form (8), in the example described concentric circles. The display also scrolls an information tape (9). Figure 3 shows another alternative embodiment, wherein the plate (1) is mounted on a retractable foot (10) 10 for adjusting the height of the target. This retractable foot (10) is articulated by a pivot (11) relative to two branches (12, 13) having anchoring teeth in the ground. A jack (14) ensures the return to the waiting position after an impact. A ballast (15) is formed by a reservoir 15 which can be filled with water. The fixation has the function of keeping the target in a stable position, despite the shocks received due to the shots, and whatever the environment in which the activity is located: inside, outside, in a football goal zone, in a handball goal zone, on a flat turf field, stabilized sports floors, ... The binding must make it possible to keep the target in a stable position despite the shocks that tend to move it. The multi-floor notched feet (12, 13) have three sets of rotating stop lugs around the feet of the target: when the target is to be placed on the ground, it can unfold feet inserted in its frame, the assembly forming a right triangle whose right angle would be the low end of the target. On the two longitudinal feet (12, 13) which are placed along the ground, a series of notches larger or smaller, hard plastic and formed of teeth, the height and function of the ground. For example 3mm for a stabilized ground poured or PVC (indoor gym type), lcm for a hard floor 35 outside, 3cm for unstabilized ground outdoors type -7 garden. This set of notches can rotate around the "target foot" axis with a setting or stop switch to position the right notches on the corresponding floor. - ^ Option: traveling wheels.

In the context of the solution made with a weight, if it is not emptied, it will be difficult for the user to move the target or the weight, which must be raised. One solution is to add to the weight or structure accommodating this weight two wheels set a few millimeters in height, at the angle formed by the weight of one side and the vertical structure on the other. With the help of a molded handle at the other end of the weight or horizontal structure, the user will then only have to lift the assembly at 45 degrees using the handle and the together can be moved using both wheels. The target must be securely held, as if it had been fixed to its support (ground, goal, ...) without using an assembly mechanism requiring to modify the support or to proceed to a heavy assembly step ( no use of power tools or long-term assembly at each installation). The fixation system is unique, whereas the environment of attachment is multiple: on the ground and on more or less hard materials, more or less porous, in the air (goal) close to fixed supports (frame of goal ), in the air and several tens of centimeters from a fixed support (in the middle of goal for example). From the previously stated constraints, the following points describe the ideal characteristics of fixation - a single system, simple and not more cumbersome than the target itself, which gives the target significant resistance to shocks of use, so that it does not move whatever the environmental choices (a goal frame, the middle of a goal, a stabilized ground, ...). - Allow assembly / disassembly of the attachment as simple as possible, without tools, requiring the least possible operations and a minimum duration. - The fastening system must allow easy adjustment of the position of the target in its environment. The target can be connected to a weight, removable or not, empty box type that can be easily mounted and removed from the assembly to fill or empty water, giving all the properties necessary for its maintenance . Between this weight and the target would be mounted a rigid structure, to accommodate the weight, adjust the height of the target and stabilize the whole ground.

If necessary, a jack is provided on the structure in order to reposition the target vertically after the shock of a shot. According to an alternative embodiment, the plate (1) is attached to a perforated tarpaulin for football goal frames and handball goals. The tarpaulins attach securely to the frame, then the target is positioned anywhere on the tarpaulin and then attached by means of stoppers or grips. The advantage of this solution is that it is complementary with ground use (the target can keep feet folded). It is also possible to deport the display. This solution may take the form of a horizontal bar, placed behind the crossbar of a football or handball goal, and provided with laser or ultrasound beams which detect the passage, the height and the speed of interruption of the beam. The result is then displayed on the club display and / or on a telephone.

Claims (4)

CLAIMS1 - Training target for the analysis of the impact of a bullet comprising electronic sensors characterized in that it consists of a rigid surface at least partially transparent at a viewing zone of a display, and in that it comprises a computer for determining the position of the impact and the relative velocity of the bullet with respect to the target at the moment of impact, from the signals delivered by said electronic sensors, to control said display. 2 - Training target according to claim 1 characterized in that said rigid structure is articulated with respect to a support and comprises a compressed jack during a shot ensuring after the impact the repositioning of the target to receive a new shot . 3 - Training target according to claim 1 characterized in that it comprises a ballast formed by an empty box resting on feet. 4 - Training target according to claim 1 characterized in that it comprises N series of curved teeth, N being between 2 and 4, each series corresponding to a different height of teeth, said series of teeth being arranged each 360 / N degrees around the axis of each foot of the structure, with the end of the teeth pointing towards the rear of the structure, to prevent slippage of the target. - Training target according to claim 1 characterized in that it further comprises a remote display connected wirelessly. 35-10- 6 - Training target according to claim 1 characterized in that it further comprises a goal net of conical shape whose end is at target height to allow the return of the balloon to the zone d 'activity.