Gesture-Controlled Showerheads for Intuitive Multi-Outlet Operation

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Solution Overview

Problem

Conventional shower systems require users to adjust settings through remote and often unintuitive interfaces, which can be difficult to access and operate, especially when vision is impaired, and offer limited control options.

Innovation Solution

A shower system that allows users to control multiple water delivery devices through gesturing movements, touch controls, and voice commands directly on the devices, with each device acting as a master or slave unit, enabling intuitive and customizable control of water temperature, flow rate, and additional features like audio and lighting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If users control shower systems through remote interfaces, then system control is centralized, but ease of operation deteriorates due to difficult access and unintuitive operation especially when vision is impaired

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The shower system is divided into multiple independent water delivery devices, each with its own control interface. This segmentation allows users to control each device individually at its location rather than returning to a central interface, significantly improving ease of operation while maintaining manageable system complexity through modular design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each water delivery device is equipped with motion-sensing sensors and control interfaces that allow it to autonomously detect user presence and respond to gestures. The devices self-activate and self-adjust based on detected gestures, eliminating the need for users to manually operate remote interfaces and greatly enhancing ease of operation

Inventive Principle:
Principle #25Self-service

2Ease of operation

If multiple water delivery devices are equipped with individual control interfaces, then ease of operation improves through direct control, but device complexity increases due to additional sensors and electronics

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The motion-sensing sensors and control electronics designed for one water delivery device can be replicated and applied to multiple different devices throughout the system. This universal approach allows each device to have full control capabilities without requiring unique complex designs for each device, managing overall system complexity while maintaining individual device functionality

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

Solution Approach 2:

Traditional mechanical control interfaces (knobs, switches, buttons) are replaced with motion-sensing technology that detects gestures and translates them into control commands. This substitution eliminates complex mechanical components while providing intuitive gesture-based control, improving ease of operation particularly for users with visual impairments or motor difficulties

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If motion-sensing sensors are integrated into each showerhead, then ease of operation improves through gesture control, but manufacturing complexity increases

Engineering Contradiction:
Improveease of operationVSAvoidease of manufacture
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The control system is segmented into independent modules that can be manufactured separately and then integrated into each water delivery device. This modular approach allows manufacturers to produce standardized sensor assemblies that can be efficiently manufactured and then installed in multiple devices, reducing overall manufacturing complexity while enabling gesture control in each device

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4039895B1Shower system
Publication Date: 2025.07.16 KOHLER CO(US)
  • EP4039895B1 patent drawingFigure 1
  • EP4039895B1 patent drawingFigure 2~3
  • EP4039895B1 patent drawingFigure 4~5

AI summary

A shower system includes on one or more valves and a plurality of showerheads. The plurality of showerheads are electrically coupled to one another and configured to receive electrical signals from one another. The plurality of showerheads are fluidly coupled to the one or more valves and configured to receive water therefrom. The plurality of showerheads includes a sprayer, one or more sensors, and an integrated user interface. The sprayer is configured to dispense water provided by the one or more valves. The one or more sensors are configured to register motion gestures made by a user. The integrated user interface is configured to control operation of the sprayer. The one or more sensors generates an internal signal to the plurality of showerheads corresponding to the motion gesture. One of the plurality of showerheads is a master showerhead.