Patent ID: 11953276
Assignee: ARMAMENTS RESEARCH COMPANY, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC F  G  H | IPC F  G

Claim 4:
5. A method for determining an operational status of a firearm based on a discharge event, the method comprising:
receiving, by an event detection module, a signal indicative of a plurality of accelerations sensed by at least one inertial measurement unit (IMU);
determining a sample shot profile based on the signal;
comparing the sample shot profile to a baseline shot profile representative of a properly functioning firearm, the baseline shot profile comprising:
a first peak at a first time representing initial discharge of the firearm wherein a bolt of the firearm moves from an initial forward position;
a second peak at a second time, subsequent to the first time, representing the bolt engaging a rear buffer of the firearm;
a third peak at a third time, subsequent to the second time, representing the bolt returning to the forward position;

determining whether the sample shot profile includes all of the first peak, the second peak and the third peak; and
determining a failed operational status of the weapon based on a determination that at least one of the first, second and third peaks are missing.