Thermal Sensation Control Using Preheated Warm/Cool Sources

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Solution Overview

Problem

Existing thermal sensation presentation technologies are insensitive to user movement and fail to present thermal sensations appropriately due to direct contact with the skin, making it difficult to synchronize thermal sensations with user movements or scenarios.

Innovation Solution

A thermal sensation presentation apparatus with a warm/cool source, enclosure, and movable section that allows heat or cool air to be moved to a predetermined temperature and released at appropriate timings based on user position and movement, using a control system to synchronize thermal sensations with user interactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the warm/cool source is in direct contact with the user's skin, then the thermal sensation can be transmitted, but the user becomes insensitive to temperature changes and it is difficult to synchronize with user movement

Engineering Contradiction:
Improvethermal sensation transmissionVSAvoidsynchronization with user movement
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The control section generates a second control signal to heat or cool the warm/cool source to a predetermined temperature before generating a first control signal to drive the movable section. This preliminary heating/cooling ensures the thermal source is ready at the correct temperature before the user arrives, enabling both reliable sensation transmission and synchronization with user movement

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The movable section moves the warm/cool source dynamically based on detected user position and movement. Instead of fixed contact, the system adjusts the position and timing of thermal source deployment to match user actions, improving adaptability while maintaining sensation reliability

Inventive Principle:
Principle #15Dynamics

2Loss of time

If the warm/cool source is heated in advance, then the thermal sensation can be presented at the right timing, but the system complexity increases due to control sequencing

Engineering Contradiction:
Improvetiming synchronizationVSAvoidcontrol signal sequencing
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The detection section detects user position and movement in real-time, providing feedback to the control section. The control section uses this feedback to dynamically generate first and second control signals, achieving precise timing synchronization without requiring complex pre-programmed sequences

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary heating or cooling of the warm/cool source to a predetermined temperature before user contact. This advance preparation ensures thermal readiness while the control section manages the sequencing through a structured two-signal approach that balances complexity with timing precision

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables precise timing and effective presentation of thermal sensations by controlling the release of heat or cool air to match user movements, enhancing user perception and synchronization with scenarios.

Implementation Method 1

heating or cooling the warm/cool source to a predetermined temperature

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

The movable section moves heat generated by heating or cooling the warm/cool source to a predetermined temperature from the space to outside of the space

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 3

The warm/cool source may be an infrared heater or a cooling fan

Methodology Applied
Scientific EffectInfrared radiation: Infrared Radiation

Implementation Method 4

The warm/cool source may be an infrared heater or a cooling fan

Methodology Applied
Scientific EffectForced convection: Forced Convection

Implementation Method 5

The warm/cool source may be a resistance heater or a Peltier element

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 6

The warm/cool source may be a resistance heater or a Peltier element

Methodology Applied
Scientific EffectPeltier effect: Peltier Effect

Data Source

PatentUS20250251780A1Thermal sensation presentation apparatus and thermal sensation presention system
Publication Date: 2025.08.07 SONY GROUP CORP
  • US20250251780A1 patent drawing
  • US20250251780A1 patent drawing
  • US20250251780A1 patent drawing

AI summary

[Object] To provide a thermal sensation presentation apparatus and a thermal sensation presentation system that enable a user to present a thermal sensation at an appropriate timing.[Solving Means] A thermal sensation presentation apparatus according to an embodiment of the present technology includes a measurement unit, a gas supply section, and a control unit. The measurement unit includes a warm/cool source, an enclosure, a movable section, and a control section. The enclosure has a space to accommodate the warm/cool source. The movable section moves heat generated by heating or cooling the warm/cool source to a predetermined temperature from the space to outside of the space. The control section generates a second control signal to heat or cool the warm/cool source to the predetermined temperature before generating a first control signal to drive the movable section.