Sensor Arrangement Mode Acquisition Device for Optimal Detection Accuracy
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Solution Overview
Problem
Existing sensor arrangement modes fail to achieve high detection accuracy for specific actions while minimizing the number of sensors, as they are costly to mount and often limited in number, and existing systems cannot effectively acquire optimal sensor arrangements for high-demand actions.
Innovation Solution
A sensor arrangement mode acquisition device that includes a database storing prediction accuracy parameters for various sensor arrangements and actions, allowing selection of optimal sensor numbers and actions to determine the most accurate arrangement modes based on prediction accuracy parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of sensors is increased to improve detection accuracy, then detection accuracy improves, but running costs increase and mounting difficulty increases
Solution Approach 1:
The patent applies partial action by selecting only the necessary subset of sensors required to detect specific predetermined actions with high accuracy, rather than deploying all available sensors. The system determines optimal sensor arrangements that provide sufficient detection capability for target actions while minimizing the total number of sensors used, thus resolving the contradiction between detection accuracy and device complexity
Solution Approach 2:
The patent changes the parameter of sensor arrangement configuration to optimize detection performance. By evaluating multiple arrangement modes and selecting the optimal configuration based on detection accuracy requirements for specific actions, the system achieves high detection accuracy with fewer sensors, thereby resolving the contradiction between measurement precision and device complexity
2Adaptability or versatility
If more sensors are deployed to detect multiple actions, then detection coverage improves, but running costs increase
Solution Approach 1:
The system implements partial action by deploying only the minimum necessary sensors to detect the predetermined actions of interest. Rather than using all sensors to cover all possible actions, the system identifies and implements optimal sensor arrangements that provide adequate detection coverage for specific target actions, reducing running costs while maintaining necessary adaptability
Solution Approach 2:
The patent achieves multi-functionality by configuring sensors to detect multiple predetermined actions simultaneously through optimal arrangement modes. A single sensor arrangement can detect various actions (e.g., walking, running, jumping) by analyzing different patterns from the same sensor set, thereby improving detection coverage without proportionally increasing the number of sensors and running costs
3Measurement precision
If sensors are mounted on more body parts to improve detection accuracy, then detection accuracy improves, but mounting difficulty increases
Solution Approach 1:
The system applies partial action by mounting sensors only on the specific body parts necessary to detect predetermined actions with high accuracy, rather than distributing sensors across all body parts. The optimal arrangement identification process determines the minimal set of mounting locations required, thereby improving detection accuracy while reducing mounting difficulty
Solution Approach 2:
The patent changes the spatial arrangement parameters of sensor mounting locations to optimize both detection accuracy and mounting ease. By evaluating different arrangement modes and selecting optimal configurations, the system identifies mounting positions that provide high detection accuracy for target actions while minimizing the number and complexity of mounting locations
Data Source
AI summary
A sensor arrangement mode acquisition device capable of acquiring an arrangement mode of sensors while evaluating a detection accuracy of a predetermined action and a limitation on the number of sensors is provided. An E2PROM (13) of a sensor arrangement mode acquisition device (1) stores a database that defines a relationship between k×m correct answer ratios when the number of sensors (2) within a range of n or less is disposed in a test subject in k different arrangement modes, the k arrangement modes, and m predetermined actions. A controller (10) acquires one or more arrangement modes from the database in a case where an upper limit number of sensors, a predetermined action, and attachment areas of the sensors are selected by operating an input device (12) and a result display button (27) is pressed, and displays the acquired arrangement modes on a display (11).