Footsteps Tracking via Microphone Array Acoustic Analysis

The patent replaces the mechanical sensor-based detection system with an acoustic field-based detection system. Instead of using multiple physical sensors arranged in the environment to detect footsteps, the system uses a microphone array to capture acoustic signals generated by footsteps. The processing module then analyzes these acoustic signals to determine footstep locations, effectively substituting a mechanical detection system with an acoustic field-based system that requires fewer physical components.

The patent introduces acoustic signals as an intermediary to transmit footstep information. Instead of directly detecting footsteps with sensors, the system captures the acoustic waves generated by footsteps using a microphone array. The processing module then processes these acoustic signals to extract footstep location and movement information, using the acoustic field as a mediator between the footstep event and the detection system.

The patent makes the microphone array perform multiple functions: it not only captures acoustic signals for footstep detection but also provides spatial information for location tracking and movement analysis. The same hardware infrastructure (microphone array) is used for both sound source identification and positional tracking, eliminating the need for separate sensor systems and reducing overall implementation cost while maintaining reliability.

The patent replaces expensive multi-sensor mechanical detection systems with a more cost-effective acoustic field-based system. By using a microphone array to capture and process acoustic signals, the system achieves reliable footstep tracking without requiring the deployment of multiple physical sensors throughout the environment, thereby reducing implementation costs while maintaining tracking reliability.

The patent replaces complex mechanical sensor deployment with a simpler acoustic field-based system. Instead of arranging multiple sensors throughout the environment to monitor each step, the system uses a microphone array to capture acoustic signals. The processing module then analyzes these signals to precisely determine footstep locations and movements, achieving high measurement precision with significantly reduced device complexity.

The patent uses acoustic signals as an intermediary to simplify the detection process. Rather than directly monitoring footsteps with multiple sensors, the system captures the acoustic waves generated by footsteps and uses these signals to infer footstep location and movement information. This intermediary approach simplifies the overall system architecture while maintaining precise step monitoring capability.