Directional Speaker Drone Positioning for Multi-Target Audio Coverage
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Solution Overview
Problem
Existing unmanned moving bodies face difficulties in performing sound emission or sound collection for multiple targets in an integrated manner, as they typically focus on a single target and struggle to adjust their sound emission or collection ranges effectively to include multiple individuals or objects in the vicinity.
Innovation Solution
An unmanned moving body equipped with a directional speaker or microphone and a processor that uses sensing data to determine the presence and positional relationship of multiple targets, adjusting its position to ensure that sound is emitted or collected at a predetermined quality for all targets within the range, thereby enabling integrated sound management for multiple targets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the unmanned moving body controls sound emission direction to focus on a single target, then sound emission quality for that target is improved, but the ability to perform sound emission for multiple targets simultaneously deteriorates
Solution Approach 1:
The unmanned moving body dynamically adjusts its position based on the spatial distribution of multiple targets. The system calculates optimal positions that satisfy sound quality requirements for all targets simultaneously, transforming the static single-target focusing approach into a dynamic multi-target adaptation system.
Solution Approach 2:
The system transitions from controlling sound emission in a single directional dimension to operating in a spatial position dimension. By moving the unmanned body to specific coordinates in three-dimensional space, it achieves simultaneous coverage of multiple targets that cannot be accomplished through directional control alone.
2Measurement precision
If the unmanned moving body uses a directional speaker to emit sound in a specific orientation, then sound emission precision for a single target is improved, but the ability to include multiple targets in the sound range deteriorates
Solution Approach 1:
The system maintains the directional speaker's localized sound emission precision while adapting the overall sound coverage through positional adjustment. Each target receives focused sound emission from the directional speaker, and the system ensures all targets are included by selecting an optimal position that satisfies local quality requirements for each target.
Solution Approach 2:
The unmanned moving body dynamically repositions itself to balance sound emission precision and coverage range. By continuously adjusting its position based on target locations, the system maintains high precision for each individual target while simultaneously expanding the overall coverage to include all targets.
3Measurement precision
If the unmanned moving body focuses on a single target for sound collection, then sound collection quality for that target is improved, but the ability to collect sound from multiple targets simultaneously deteriorates
Solution Approach 1:
The unmanned moving body dynamically adjusts its position to optimize sound collection from multiple targets. The system calculates positions that ensure the directional microphone can collect sound from all targets with predetermined quality, transforming the static single-target collection approach into a dynamic multi-target system.
4Adaptability or versatility
If the unmanned moving body adjusts sound emission range to include multiple targets, then multi-target coverage is improved, but sound quality for individual targets may deteriorate
Solution Approach 1:
The system ensures that while the sound emission range covers multiple targets, each target still receives sound at predetermined quality levels. The directional speaker maintains its focused emission characteristics, and the system selects positions that ensure local quality requirements are met for each individual target within the multi-target coverage area.
Data Source
AI summary
An unmanned moving body includes a directional speaker that outputs sound in an orientation direction and a processor that obtains one or more instances of sensing data. The processor: determines whether or not a second target is present in a vicinity of a first target in accordance with at least one of the one or more instances of sensing data; calculates a positional relationship between the first target and the second target when it is determined that the second target is present; and determines a first position of the unmanned moving body in accordance with the positional relationship and causes the unmanned moving body to move to the first position, the first position being a position that places the first target and the second target within a range over which the sound from the directional speaker reaches at at least a predetermined quality.