Wireless Device Location via Acoustic Event Correlation
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Solution Overview
Problem
Existing gunshot and explosion detection systems struggle to promptly identify and locate wireless devices associated with security events, such as gunfire and explosive threats, which can lead to delays in responding to emergencies and investigating incidents due to limitations in tracking and tracing wireless communications.
Innovation Solution
A method that determines the time and location of a security event and accesses wireless networks to identify and locate wireless devices within a predetermined proximity, including those that were in communication with the primary device at the time of the event, using commercial communication networks or sensor networks to gather ID and location data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If gunshot and explosion detection systems are used to detect security events, then the detection capability is improved, but the ability to promptly identify and locate associated wireless devices deteriorates due to limitations in tracking and tracing wireless communications
Solution Approach 1:
The patent combines acoustic detection systems (for detecting gunshots and explosions) with wireless communication tracking systems (for identifying and locating wireless devices). By merging these previously separate capabilities into a unified system, the patent enables simultaneous detection of security events and identification of associated wireless devices, eliminating the time loss that occurred when these functions were separate.
2Measurement precision
If wireless networks are accessed to identify and locate wireless devices, then the identification capability is improved, but the system complexity increases due to the need to access commercial communication networks and sensor networks
Solution Approach 1:
The patent employs intermediary components including wireless network access interfaces that connect to commercial communication networks, and sensor networks that act as intermediaries between the physical security events and the identification system. These intermediaries handle the complexity of network access and device tracking, providing precise identification capability while managing system complexity through modular architecture.
3Productivity
If real-time tracking of wireless devices is implemented, then the response effectiveness is improved, but the loss of time for data processing and analysis increases
Solution Approach 1:
The patent implements preliminary action by pre-establishing connections to wireless networks and sensor networks before security events occur. The system maintains ready-state access to communication networks and pre-positions tracking capabilities, so that when a security event is detected, the identification and location of wireless devices can begin immediately without time-consuming setup or initialization delays.
Data Source
AI summary
Wireless devices are often associated with security events. The security events may be investigated by identifying and locating the associated wireless devices by: 1) determining a time and a location of a security event; 2) accessing a first wireless network and determining at least one of an ID and a location for at least a first wireless device within a predetermined proximity of the security event; and 3) determining at least one of an ID and a location for a second wireless device that was in communication with the first wireless device within at least one of: a predetermined span of time prior to or concurrent with the time of the security event, and a predetermined proximity to the security event.