Firearm Discharge Tracking Device Sensor Fusion
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Solution Overview
Problem
Current video and body camera technologies used by police officers often malfunction and provide inaccurate data for determining firearm discharge sequences during incidents, making it difficult to reconstruct and analyze events accurately, especially in situations involving multiple firearms.
Innovation Solution
A firearm discharge tracking device equipped with sensors such as accelerometers, microphones, gyroscopes, and cameras, which processes real-time data to determine firearm discharges and communicates wirelessly with other devices to synchronize and analyze data for accurate sequence determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If video and body camera technologies are used to document police activities, then officer accountability and incident documentation are improved, but the accuracy of determining firearm discharge sequences deteriorates due to malfunction and tampering
Solution Approach 1:
The patent combines multiple sensors (accelerometer, gyroscope, microphone, camera) into a single integrated discharge tracking device that is attached to the firearm. This merging of sensing capabilities allows the system to simultaneously capture motion data, audio data, and visual data, providing multiple independent lines of evidence for determining firearm discharge sequences, thereby resolving the contradiction between reliability and measurement precision
Solution Approach 2:
The discharge tracking device serves as an intermediary between the firearm and the investigation process. It directly attaches to the firearm and captures discharge events through multiple sensors, creating an independent record that is not subject to the same malfunction and tampering issues as video and body camera technologies. This intermediary device provides accurate discharge sequence data even when other documentation systems fail
2Measurement precision
If multiple sensors are integrated into a discharge tracking device to accurately detect firearm discharges, then measurement precision of discharge sequences is improved, but device complexity increases
Solution Approach 1:
The discharge tracking device is designed as a multi-functional unit that performs multiple sensing functions (acceleration detection, rotation detection, audio recording, video recording) within a single device. This universal design allows the system to capture comprehensive discharge event data without requiring separate devices for each sensing modality, thereby managing complexity while maintaining high measurement precision
Solution Approach 2:
The patent nests multiple sensing components (accelerometer, gyroscope, microphone, camera) within a single integrated housing or device structure. This nesting approach consolidates the complexity of multiple sensors into one unified device that can be easily attached to the firearm, reducing the operational complexity despite the sophisticated sensing capabilities
3Measurement precision
If wireless communication is implemented between multiple discharge tracking devices to synchronize data, then accuracy of multi-firearm incident analysis is improved, but loss of time for data synchronization increases
Solution Approach 1:
The discharge tracking devices perform preliminary actions by continuously recording and buffering data from all sensors before discharge events occur. This preliminary data collection ensures that when a discharge event is detected, the relevant data is already captured and ready for immediate analysis, eliminating the need for time-consuming real-time synchronization during the actual discharge sequence determination
Solution Approach 2:
The patent replaces real-time mechanical data synchronization with a post-event data aggregation approach. Instead of continuously synchronizing data between multiple devices in real-time (which would be time-consuming), the system allows each device to independently record events and then aggregates the data after the incident, using timestamps and sensor data correlation to determine the precise discharge sequence without significant time loss
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device efficiently and accurately determines the sequence of firearm discharges, reducing errors in post-incident investigations by providing reliable data on who discharged a firearm, how many rounds were fired, and the order of discharges, even in complex scenarios involving multiple firearms.
Implementation Method 1
a plurality of sensors including an accelerometer
Implementation Method 2
a microphone
Implementation Method 3
a gyroscope
Data Source
AI summary
Apparatus, systems and methods for monitoring a firearm discharge by using a discharge tracking device attached to a firearm, the device comprising a monitoring unit having a processor and a memory coupled to an input-output unit, a plurality of sensors including an accelerometer, a microphone, a gyroscope and a camera communicatively coupled to the input-output unit of the monitoring unit, a wireless communication interface configured to communicate with at least one other discharge tracking device. The memory is configured to store data from the plurality of sensors including video from the camera and audio from the microphone and the processor is configured to determine the discharge of the firearm by processing and interpreting signals generated by the plurality of sensors including video from the camera and audio from the microphone and transmitted via the discharge tracking device.