An ammunition monitoring apparatus of the present disclosure includes at least one object-position detection sensor and a controller. The at least one object-position detection sensor is installed near a shell or charge route to face at least one set area and to output position information of each shell or charge in the at least one set area. The controller is configured to determine whether a position range occupied by the shell or the charge in the at least one set area exceeds an allowable position range, based on the position information received from the at least one object-position detection sensor, and to output an alert signal indicating a poor position upon determining that the position range occupied by the shell or the charge in the at least one set area exceeds the allowable position range.

An ammunition monitoring apparatus of the present disclosure includes at least one object-position detection sensor and a controller. The at least one object-position detection sensor is installed near a shell or charge route to face at least one set area and to output position information of each shell or charge in the at least one set area. The controller is configured to determine whether a position range occupied by the shell or the charge in the at least one set area exceeds an allowable position range, based on the position information received from the at least one object-position detection sensor, and to output an alert signal indicating a poor position upon determining that the position range occupied by the shell or the charge in the at least one set area exceeds the allowable position range.

The impact angle of a small caliber projectile is determined by accurately measuring the orientation angle of the projectile in flight and modeling epicyclical flight of the projectile. To measure the orientation angle, a projectile is fired along a trajectory within a test gantry. One or more sets of cameras captures images of the projectile in flight. The images are processed using computer vision to measure the position and orientation angle at each station. Calibration of the test equipment prior to the test firing of the projectile, allows for determination of these points in the 3d space of the test fixture. Aeroballistic models are fit to the orientation history. From these models, an impact angle is extrapolated.

The impact angle of a small caliber projectile is determined by accurately measuring the orientation angle of the projectile in flight and modeling epicyclical flight of the projectile. To measure the orientation angle, a projectile is fired along a trajectory within a test gantry. One or more sets of cameras captures images of the projectile in flight. The images are processed using computer vision to measure the position and orientation angle at each station. Calibration of the test equipment prior to the test firing of the projectile, allows for determination of these points in the 3d space of the test fixture. Aeroballistic models are fit to the orientation history. From these models, an impact angle is extrapolated.

The present invention relates to a device for measuring the rhythm and/or rate of fire for all types of weapon, comprising:a self-powered system (2) able to recuperate the energy of the firing,at least one RC accumulation network (3) comprising a capacitor (5) and a resistor (6) in parallel, an element that measures the voltage across the terminals of the capacitor; characterized in that the self-powered system (2) charges said capacitor (5) upon each firing.

A method for initiating a responsive action based on an operational status event of a firearm is provided. The method can include receiving, by an event detection module, acceleration and rotation input signals from an inertial measurement unit configured on the firearm. An occurrence of an operational status event based on the acceleration and rotation input signals are identified by the event detection module. A tipping signal is generated by the event detection module based on the identified operational status event. The tipping signal is received at a responsive infrastructure. The responsive infrastructure performs a responsive action based on the tipping signal.

A test fixture for testing firearms or ammunition according to the present disclosure includes a base, a barrel retention assembly, a door, and a firing pin. The base includes a longitudinal channel. The barrel retention assembly is configured to support a firearm barrel in the longitudinal channel. The door is pivotably mounted to the base and is configured to move from a closed position contacting a rear face of the base to an open position spaced from the rear face of the base. The firing pin is supported in a housing. The housing is slideably supported within the base and is configured to move between a first position and a second position. The first position aligns the firing pin and a longitudinal axis of the barrel retention assembly and the second position provides access to the barrel retention assembly.

A test fixture for testing firearms or ammunition according to the present disclosure includes a base, a barrel retention assembly, a door, and a firing pin. The base includes a longitudinal channel. The barrel retention assembly is configured to support a firearm barrel in the longitudinal channel. The door is pivotably mounted to the base and is configured to move from a closed position contacting a rear face of the base to an open position spaced from the rear face of the base. The firing pin is supported in a housing. The housing is slideably supported within the base and is configured to move between a first position and a second position. The first position aligns the firing pin and a longitudinal axis of the barrel retention assembly and the second position provides access to the barrel retention assembly.

A system and method for determining a discharge event of a firearm is provided. An event detection module receives acceleration and rotation input signals from an inertial measurement unit configured on the firearm. Respective acceleration and rotation input signals are assigned to sample event candidates at respective windows of time. The acceleration signals of the sampled event candidates are compared to a discharge acceleration template that represents a confirmed weapon discharge event. A subset of accepted accelerations from the sampled event candidates are identified that satisfy the discharge acceleration template. A first rotation input signal from the sample window of time associated with each accepted acceleration in the subset is compared to a first rotation template that represents a confirmed weapon discharge event. A determination is made whether the sample event candidate is a discharge event based on satisfying both the discharge acceleration template and the first rotation template.

A system and method for determining a discharge event of a firearm is provided. An event detection module receives acceleration and rotation input signals from an inertial measurement unit configured on the firearm. Respective acceleration and rotation input signals are assigned to sample event candidates at respective windows of time. The acceleration signals of the sampled event candidates are compared to a discharge acceleration template that represents a confirmed weapon discharge event. A subset of accepted accelerations from the sampled event candidates are identified that satisfy the discharge acceleration template. A first rotation input signal from the sample window of time associated with each accepted acceleration in the subset is compared to a first rotation template that represents a confirmed weapon discharge event. A determination is made whether the sample event candidate is a discharge event based on satisfying both the discharge acceleration template and the first rotation template.