Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F41—WEAPONS
  • F41G—WEAPON SIGHTS; AIMING
  • F41G3/00—Aiming or laying means
  • F41G3/26—Teaching or practice apparatus for gun-aiming or gun-laying
  • F41G3/2605—Teaching or practice apparatus for gun-aiming or gun-laying using a view recording device cosighted with the gun
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F41—WEAPONS
  • F41G—WEAPON SIGHTS; AIMING
  • F41G3/00—Aiming or laying means
  • F41G3/06—Aiming or laying means with rangefinder
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; COUNTING
  • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
  • G06T7/00—Image analysis
  • G06T7/20—Analysis of motion
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N7/00—Television systems
  • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; COUNTING
  • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
  • G06T2207/00—Indexing scheme for image analysis or image enhancement
  • G06T2207/10—Image acquisition modality
  • G06T2207/10016—Video; Image sequence
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N7/00—Television systems
  • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
  • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source

Definitions

• TITLE Device and Method of Shot Analysis
• the invention relates to the field of shot analysis, and relates to a device and a method for automated analysis of a shot, in particular in the field of training.
• a technique most commonly used is the a posteriori observation of the accuracy of the shot. If the shot is fired at a target, then this serves as a support for verifying the accuracy of the shot fired. If the shot is aimed at a real target, then the accuracy of the shot is analyzed by the impact of the ammunition (real or via a paintball for example). Another technique is to film the target via an external device allowing the user to verify the accuracy of the shot.
• a final approach is to use a laser system coupled to the triggering of the shot and analyzed by an external device, for example by means of markers mounted on potential targets which transmit information to a central system whether there is an impact or not. .
• Patent EP 0985899 A1 proposes a compact device for recording video images which can be mounted on a pistol and used to record video images before and after firing the pistol.
• the recording device includes a camera including a lens and a video image sensor.
• Video recording device is mounted on the gun so that the viewing area of the camera includes the target area of the gun.
• the video image sensor generates an electronic signal representative of a video image impinging on the respective sensor.
• the output of the image sensor is processed and generally used to produce successive field data which is stored sequentially in locations of a semiconductor memory organized in a circular buffer memory while the video recording device is in a state. active state.
• firing is triggered, additional frames are stored in the buffer for a short period of time, and part of the buffer is used to keep a video recording of the shot before and after the event. Additional frames are stored successively in the unused part of the buffer memory.
• US Patent 8,022,986 to Jekel proposes a device for measuring the orientation of a weapon which comprises a processor configured to receive first location information indicating the locations of a first point and of a second point on a weapon, the first and second points being separated by a distance parallel to a gun pointing axis, and to receive second location information indicating the locations of the first and second points on the weapon.
• the processor is further configured to receive information indicating a first earth orientation and determine a second earth orientation corresponding to the weapon based on the first and second location information and information indicating the first earth orientation.
• the first location information represents a location relative to a first sensor at a first location and the second location information represents a location relative to a second sensor at a second
• the projectile fire training system also confirms that manual efforts by an operator to adjust the turrets would or would not hit the target after a shot. Both the turret settings and the target settings to distinguish after firing between the following states: Hit; Destroy ; Missed ; Almost missed. A light signal or the like is sent from the weapon to the target to indicate that a shot has been made by the weapon.
• a method known for more than 20 years to address this problem consists in equipping potential targets with photosensitive sensors able to send information when they are illuminated by a LASER.
• the drawbacks of this method are multiple: LASER attenuation over long distances, inability to shoot through fuzzy obstacles (eg foliage), need to equip the target with enough photosensitive sensors, among others.
• An object of the present invention is to provide a device autonomous in energy and calculation, capable of detecting the start of a blow and of recording via an electro-optical device the place and date of the impact of the ammunition if it is present or the position simulated by calculation of the impact in the case of the use of a blank bullet without real impact.
• the device of the invention is available in the form of a kit which can be simply added to the rails of a weapon (for example on a MIL-STD 1913 "picatinny" rail).
• Another object of the present invention is to provide a method of precise analysis of the performance of a shot which makes it possible to generate in real time a report on the accuracy of an impact, and to record it. for later consultation.
• the report can be used directly by the user on a smartphone or tablet or a virtual reality headset;
• the analysis of a shot is made from the analysis of the movement of the weapon and the posture of the shooter, a ballistics calculation is carried out according to the ammunition used, and there is a precise, automated and in real time during firing, of an impact (which entity, which part of the entity) making it possible to determine a level of impact damage;
• each impact can be analyzed individually;
• the device can be deployed and used anywhere, without special instrumentation;
• the invention will find an advantageous application in the field of simulation, and more particularly in the context of military or police training, for which it is necessary to be able to designate targets realistically without having to resort to real projectiles for safety reasons. More generally, the invention can also be implemented for an application dedicated to military collective training, with weapon jigs much larger than small arms such as the one described as an example.
• the device of the invention can be coupled to a system of effectors, thus making it possible to simulate an impact on a target or on an individual instrumented by this same effector, whether it is luminous or vibration.
• the device of the invention can be used to calculate a trajectory in traversable obstacles (a door, a foliage, etc.) and thus remove the limitations (inaccuracies of the long-distance laser, and need a direct view of the target) laser equipment (STC laser Combat Shooting Simulator).
• the device of the invention can be coupled to a set of sensors arranged on the ground, and thus make it possible to make a realistic calculation of a trajectory taking into account parameters such as the wind, the pressure, the humidity of the air.
• the invention relates to a device allowing
• a data acquisition module able to determine the moment of departure of a projectile from a weapon and to acquire video and spatial data relating to a aimed target;
• - a calculation and storage module capable of analyzing the temporal, video and spatial data acquired
• the data acquisition module is composed of at least one inertial unit capable of detecting the movement of the breech of the weapon, of a range finder capable of acquiring distance data from the intended target, at least one camera suitable for acquiring line-of-sight images.
• the data acquisition module includes two multi-spectral and multi-field cameras.
• the data transmission module allows transmission via a wireless link.
• the calculation and storage module comprises at least a computer, a data storage capacity, a learning database, and a real time clock.
• the invention also covers a shooting weapon comprising a device as claimed.
• the invention also covers a shooting simulator comprising a device as claimed.
• Another object of the invention is a method of analyzing the impact of a weapon fire on a target, which comprises the following steps:
• the method comprises a step of generating a firing resolution analysis report, and a firing time analysis report. [0029] In one embodiment, the method comprises a step of sending analysis reports.
• the invention in another aspect covers a computer program product comprising non-transient code instructions for performing the process steps as claimed when said program is executed on a computer.
• FIG.1 schematically illustrates the device of the invention in one embodiment
• FIG.2 schematically illustrates the general functions operated by the various components of the device of the invention
• FIG.3 schematically illustrates the data recording phase according to an embodiment of the method of the invention according to.
• FIG. 4 schematically illustrates the data processing phase according to one embodiment of the method of the invention.
• the device (100) of the invention is shown in Figure 1 as fitted to a weapon. It mainly consists of:
• the data acquisition module is composed of at least one range finder (102) capable of acquiring distance data d 'a target (10), at least one camera (104, 106) capable of acquiring line-of-sight images and at least one inertial unit (108) of the 3-axis IMU type capable of detecting the movement of the cylinder head of the weapon when fired.
• the data acquisition module can be adapted according to the operational context, such as for example for short shots. range, it only requires a single wide-field camera, and an IMU.
• the module includes two cameras (104, 106) having different field widths, one wide field and the other narrow field.
• the storage and calculation module (1 10) allows the analysis, processing and storage of data.
• it is composed of a computer using resources of CPU type and of GPU type (dedicated to calculations performed by neural networks for example), of a learning database (208) comprising information relating to targets (people, vehicles, ...) used for the target detection calculations, and a data storage capacity (210).
• the calculation module also includes a real-time clock which guarantees precise dating without drift of the data collected.
• the data transmission module (112) allows communication to a remote device, preferably by a wireless link.
• FIG. 1 schematically illustrates the general functions performed by the various components of the device of the invention, and Figures 3 and 4 detail them.
• the analysis process begins with the detection of the initiation of a shot (202).
• the measurement of the moment of departure of a projectile is made by the sensors of the inertial unit (108) which detect the movement of the breech of the weapon, i.e. the simultaneous vibrations on the three axes.
• the detection of the starting instant of the shot triggers the recording (204) of the views by the camera or cameras (104, 106).
• the target (10) sighted by the gun is digitally recorded electro-optically by means preferably of several cameras, which are both multi-spectral (visible / infrared) and multi-fields, and this throughout the time of the displacement of the ammunition as well as after impact.
• the device uses a real wide field image and a narrow field image, the images being obtained during the aiming captured by the high resolution multispectral camera system.
• the digital video recording (204) made by all the sensors is stored and analyzed (206) directly by the computer (1 10) on board the device.
• the computer which analyzes the images from the cameras is able to:
• a synchronization mechanism makes it possible to synchronize the data recorded by all the components in order to ensure the consistency of
• the images are stored on the on-board memory (210). If the broadcast mode is activated, these images are transmitted (212) in real time for analysis and segmentation (214) to an external device (216) in order to monitor the evolution of the score before and after the shot.
• the operation of the system can be divided into two main phases: a first phase of recording the data shown in Figure 3, and a second phase of data processing shown in Figure 4.
• the data recording phase comprises the following sequence of steps:
• Triggering of fire the operator pulls the trigger of the weapon.
• the accelerometer detects the movement of the cylinder head
• the computer interprets the movement of the breech over a time window to deduce the triggering of the shot by comparison with a pre-recorded shot signature.
• the data processing phase illustrated by FIG. 4 comprises two processing sequences carried out in separate processes (400, 410).
• a first sequence (400) is dedicated to the resolution of the shot. It is very fast (on the order of the ammunition's flight time) and relies only on "A" data available immediately after firing.
• a second processing sequence (410) is slower and allows a temporal analysis of the shot. It is based on the "A" and "B" data and the first sequence, and generates a fire report.
• the first data processing sequence (400) "A” allows an analysis of the resolution of a shot, and comprises the following steps:
• Detection of objects on image C via detection and recognition algorithms This step makes it possible to identify static targets, humans, items of interior or urban furniture, weapons, vehicles, etc.
• Ballistic calculation This step allows you to determine the position hit in frame C by the ammunition, using data from the rangefinder, projection information from the camera (s) and the ballistic profile of the weapon and its ammunition.
• Detection of the target object if an object detected in the previous step is present at the position touched in the image by the ammunition (calculated in step 6), the method goes to the next step 404 , otherwise the process of the first sequence stops and the ballistics information is communicated to the second sequence.
• Identification of the target (known person, target of a certain type, particular vehicle, ).
• the method makes it possible to identify the affected sub-part. For example, for a human, an arm, a trunk, a leg or a head.
• - 405 Plotting and recording of identification and ballistics data on image C. Communication of this information for the second sequence.
• - 406 Establishment of a report to the target hit to warn him that he has been hit.
• the second data processing sequence (410) allows a temporal analysis of the shot, and comprises the following steps:
• - 418 Optionally sent by wireless link (4G, 5G, Bluetooth, wifi) to a remote computer (tablet, smartphone, augmented reality headset) for viewing by an instructor; and

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Multimedia (AREA)
• Radar, Positioning & Navigation (AREA)
• Computer Vision & Pattern Recognition (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Theoretical Computer Science (AREA)
• Signal Processing (AREA)
• Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
• Analysing Materials By The Use Of Radiation (AREA)
• Closed-Circuit Television Systems (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (6)

Families Citing this family (3)

Family Cites Families (12)

• 2019
  • 2019-02-19 FR FR1901626A patent/FR3087528B1/fr active Active
• 2020
  • 2020-02-18 CA CA3130642A patent/CA3130642A1/en active Pending
  • 2020-02-18 AU AU2020225664A patent/AU2020225664B2/en active Active
  • 2020-02-18 WO PCT/EP2020/054254 patent/WO2020169613A1/fr not_active Ceased
  • 2020-02-18 US US17/428,158 patent/US12305961B2/en active Active
  • 2020-02-18 EP EP20705967.6A patent/EP3928126A1/de active Pending

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