Firearm Grip Sensor Integrating Motion and GPS Tracking
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Solution Overview
Problem
Current firearm tracking systems are unreliable, have short battery life, and are costly, limiting their ability to provide objective data on firearm usage and orientation, which is crucial for accountability and transparency in law enforcement and security operations.
Innovation Solution
A firearm usage monitoring system that includes a nine-axis motion monitor, GPS, and a microprocessor integrated into the firearm's grip, providing real-time data on location, orientation, and discharge events, with a hard-wired data and power connection, and the ability to communicate with body cameras for enhanced recording and tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex manufacturing steps are used to enable firearm tracking, then tracking capability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple tracking functions (accelerometer, gyroscope, magnetometer, GPS) into a single integrated monitoring device that attaches to the firearm. This merging of sensors and processing capabilities into one unit reduces manufacturing complexity while maintaining reliable tracking functionality.
Solution Approach 2:
The monitoring device performs multiple functions simultaneously: tracking location via GPS, monitoring movement and orientation via nine-axis motion sensors, detecting discharge events, and communicating data. This multi-functionality eliminates the need for separate specialized devices, simplifying manufacturing while improving reliability.
2Ease of operation
If battery-powered sensors are used in firearms, then portability is improved, but battery life is short and reliability decreases
Solution Approach 1:
The system uses periodic sampling of sensor data at optimized intervals, activating sensors only when needed rather than continuous operation. This periodic action extends battery life while maintaining adequate monitoring capability throughout operational periods.
Solution Approach 2:
The device includes automatic low-battery detection and alerting functionality, enabling users to proactively replace batteries before depletion occurs. This self-service approach ensures continuous operational reliability without requiring external monitoring systems.
3Loss of information
If data is stored and transmitted continuously, then data availability is improved, but data storage and transmission costs increase
Solution Approach 1:
The system extracts and transmits only relevant event data (discharge events, significant movement) rather than continuously transmitting all sensor data. This selective data extraction reduces transmission costs and energy consumption while maintaining data availability for critical incidents.
Solution Approach 2:
Data is pre-processed and filtered on the device before transmission, with only meaningful events transmitted to remote servers. This preliminary filtering action reduces the volume of data requiring expensive transmission and storage while ensuring critical information is preserved.
4Loss of information
If body cameras are used for tracking, then recording capability is improved, but cost and reliability decrease due to falling off and failure to record
Solution Approach 1:
The system separates the critical tracking and detection functions from the recording function. The firearm-mounted sensor device reliably detects events, while body cameras serve as supplementary recording devices. This segmentation ensures that tracking reliability is not compromised by camera attachment issues.
Solution Approach 2:
The system provides real-time feedback when discharge events are detected, enabling immediate activation of recording devices. This feedback mechanism ensures recording occurs at the right moment without relying on continuous camera operation, improving both reliability and cost efficiency.
Data Source
AI summary
A firearm usage monitoring system configured to store data about location, movement, orientation, and direction of a firearm while in use and includes a hard-wired data and power connection, configured to receive data and power from a wired source. A UART to USB controller is communicatively coupled to the data and power connection and configured to send data to and receive data from the data and power connection. A microprocessor sends data to and receives data from the UART to USB controller. A motion monitor is communicatively coupled to the microprocessor module further comprising a gyroscope, an accelerometer and a compass configured to communicate data about movement, orientation, and direction of the firearm. Memory is communicatively coupled to the microprocessor and the motion monitor. Data about the location and position of the firearm in 3D space is transmitted from the motion monitor and GPS and then stored in the memory.