Multi-Interface Appliance Assembly for Conflict-Free Wireless Networking

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Solution Overview

Problem

Existing electric tools with Internet of Things technologies face challenges in flexible wireless communication and data transmission speed, requiring strict hardware configuration adherence and limiting efficient operation.

Innovation Solution

An electrical appliance assembly with multiple communication interfaces allows flexible wireless connections and data forwarding between clients, including an electrical appliance and a battery unit, with conflict prevention mechanisms to ensure efficient and reliable multiclient networking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If wireless communication chips or interfaces are embedded in electric tools following hardware configuration manuals, then manufacturers can remotely read or write data and users can perform basic operations wirelessly, but the system becomes inflexible and requires strict adherence to configuration manuals

Engineering Contradiction:
Improvewireless operation convenienceVSAvoidconnection flexibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent implements a universal communication interface system where the electric tool can automatically identify and adapt to different peripheral devices (smartphones, tablets, computers) without requiring strict hardware configuration. The system supports multiple connection modes (direct connection, indirect connection through battery unit) and automatically selects the appropriate communication path, making the device universally compatible across different platforms and devices.

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

Solution Approach 2:

The patent introduces dynamic connection establishment where the communication interface can flexibly switch between different connection modes based on real-time conditions. The system dynamically adjusts the communication path - either directly from the electric tool to the peripheral device or indirectly through the battery unit as an intermediary - providing adaptive flexibility rather than static configuration requirements.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If existing communication chips or interface settings are used in electric tools, then basic wireless operations can be performed, but data transmission speed is low and cannot meet requirements of scenarios requiring sensitive speed adjustment

Engineering Contradiction:
Improvewireless control capabilityVSAvoiddata transmission speed
Core Design Contradiction:
Ease of operationVSSpeed

Solution Approach 1:

The patent introduces the battery unit as an intermediary communication node that enhances the data transmission capability. The battery unit acts as a communication bridge between the electric tool and peripheral devices, providing additional processing power and communication resources that accelerate data transmission speed and enable more sophisticated communication protocols than the electric tool's embedded chip alone could achieve.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If multiple peripheral devices need to access the electrical appliance simultaneously, then comprehensive data access is enabled, but conflicts occur during simultaneous data reading and writing

Engineering Contradiction:
Improvemulticlient networking capabilityVSAvoiddata access reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent segments the communication interface into multiple independent communication paths - one direct path from the electric tool to peripheral devices and another path through the battery unit. This segmentation allows different peripheral devices to access the electric tool simultaneously through different paths without interfering with each other, eliminating data access conflicts while maintaining data reliability.

Inventive Principle:
Principle #1Segmentation

4Extent of automation

If wireless communication is implemented in electric tools, then remote operations are enabled, but the system requires strict hardware configuration following manuals

Engineering Contradiction:
Improveremote operation capabilityVSAvoidconfiguration complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The patent implements self-service automatic configuration where the communication interface automatically identifies the connected peripheral device type and configures the appropriate communication protocol without user intervention. The system performs automatic device detection, protocol selection, and parameter configuration, eliminating the need for users to follow complex hardware configuration manuals while maintaining high automation for remote operations.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4418631B1Electrical appliance assembly for multiclient networking, and peripheral devices
Publication Date: 2026.04.29 TECHTRONIC CORDLESS GP
  • EP4418631B1 patent drawingFigure 1
  • EP4418631B1 patent drawingFigure 2
  • EP4418631B1 patent drawingFigure 3

AI summary

The present invention provides an electrical appliance assembly for multiclient networking, comprising an electrical appliance and a battery unit, wherein the electrical appliance is configured to obtain electric energy from the battery unit or provide electric energy to the battery unit; the electrical appliance comprises a first communication interface and a second communication interface, wherein the first communication interface is configured to communicate with a peripheral device and the second communication interface is configured to communicate with a battery unit; the battery unit comprises a third communication interface and a fourth communication interface, wherein the third communication interface is configured to communicate with a peripheral device and the fourth communication interface is configured to communicate with an electrical appliance. With the present invention, a user, when operating an electrical appliance assembly wirelessly through peripheral devices, can establish wireless connections according to the conditions of the assembly or optionally, while, by using preset evaluation rules in the system, any conflicts that may occur when more than one peripheral device simultaneously reads data from and/or writes data to the electrical appliance assembly are avoided, which allows the entire multiclient networking system to operate more flexibly, reliably, and efficiently.