Wearable Sensor Networks for Precise Motion Tracking and Haptic Feedback

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Solution Overview

Problem

Existing wearable technologies lack real-time, precise, and adaptive feedback mechanisms for enhancing user interaction, safety, and functionality across various domains such as sports, healthcare, and virtual reality.

Innovation Solution

A wearable device integrating interactive sensors with inertial measurement units, RFID, Bluetooth, and infrared tracking, coupled with a central controller, provides real-time spatial data processing and haptic feedback for precise movement guidance and correction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If wearable sensors are integrated into garments or accessories, then real-time location sensing and movement tracking are enabled, but device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvereal-time location sensing precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple sensor types (optical sensors, inertial measurement units, RFID tags) into a single wearable device integrated within a garment or accessory. This merging approach enables comprehensive real-time location sensing and movement tracking while consolidating the system architecture, thereby managing device complexity despite the advanced functionality provided.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The wearable device is designed to perform multiple functions simultaneously: optical sensing for location tracking, inertial measurement for movement analysis, RFID for identification and data storage, and haptic feedback for user interaction. This multi-functionality reduces the need for separate devices and simplifies the overall system while providing precise real-time sensing capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If multiple sensor types are integrated for enhanced positioning precision, then measurement precision improves, but energy consumption increases

Engineering Contradiction:
Improvepositioning precisionVSAvoidenergy consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The system employs periodic action by activating different sensor types based on required precision levels and operational contexts. The optical sensors, inertial measurement units, and RFID system can be activated or deactivated periodically or on-demand, allowing the device to maintain positioning precision when needed while reducing energy consumption during normal operation or when lower precision is sufficient.

Inventive Principle:
Principle #19Periodic action

3Ease of operation

If haptic feedback mechanisms are added for real-time user engagement, then user interaction quality improves, but device complexity and power requirements increase

Engineering Contradiction:
Improveuser interaction qualityVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent implements haptic feedback mechanisms that provide real-time tactile responses to user movements and system events. This feedback loop enhances user interaction quality by providing immediate sensory confirmation of detected movements and system states. The feedback mechanism is integrated into the existing sensor and processing architecture, managing complexity through unified system design rather than adding entirely separate subsystems.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12402806B1Wearable sensors with Haptic feedback
Publication Date: 2025.09.02 MCCUE GEOFF
  • US12402806B1 patent drawing
  • US12402806B1 patent drawing
  • US12402806B1 patent drawing

AI summary

A wearable device integrating a network of interactive sensors is disclosed, wherein said sensors are configured to detect, monitor, and transmit real-time spatial position data to a central control unit. The central control unit comprises a processing module that computes the relative positioning and orientation of each sensor within a predefined reference frame, enabling continuous user movement tracking. Upon reaching a predefined spatial condition, the system generates a feedback signal, triggering a responsive sensory output via a haptic, auditory, or visual feedback mechanism. The device employs multiple positioning technologies, including inertial measurement units (IMUs), accelerometers, gyroscopes, magnetometers, radio frequency identification (RFID), Bluetooth Low Energy (BLE), ultra-wideband (UWB), and infrared tracking to ensure high-precision spatial awareness. The system is designed for applications in sports performance optimization, medical rehabilitation, virtual and augmented reality (VR/AR), occupational safety, and industrial hazard detection.