Configurable Battery Pack Control for Multi-Device IoT Retrofitting

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Solution Overview

Problem

Developing IoT-capable electrical devices requires increased effort for individual programming and adaptation, especially in enabling control mechanisms like pulse width modulation, and there is a need for a simple and flexible method to control various electrical devices using a generic battery pack, including retrofitting non-natively IoT-capable devices.

Innovation Solution

A generic battery pack equipped with software that can be configured using user input and external computer system-provided configuration information, allowing it to control specific electrical devices by executing configured software, which can be wirelessly updated and adapted for different devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If individual programming and adaptation is performed for each electrical device to enable IoT control, then control precision and device-specific functionality are improved, but device complexity and development effort increase

Engineering Contradiction:
Improvecontrol precisionVSAvoiddevelopment effort
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The battery pack is designed with universal control functionality that can adapt to multiple different electrical devices through a standardized communication interface. The control unit in the battery pack can execute control algorithms for different device types (power tools, household appliances, gardening tools) without requiring separate dedicated control systems for each device type, thereby reducing development effort while maintaining control precision.

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

Solution Approach 2:

The system enables flexible parameter configuration for different electrical devices through a database that stores device-specific parameters. The control unit can retrieve and apply appropriate control parameters based on the connected device type, allowing precise control adaptation without hardcoding individual programming for each device. This parameter-based approach reduces development complexity while maintaining manufacturing precision.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If a generic battery pack is used to control multiple electrical devices, then adaptability and versatility are improved, but control precision and device-specific functionality deteriorate

Engineering Contradiction:
Improvedevice compatibilityVSAvoidcontrol precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The battery pack implements dynamic parameter adjustment based on the connected electrical device. The control unit retrieves device-specific parameters from a database and configures control algorithms accordingly. This allows a single generic battery pack hardware design to achieve precise control for different device types by changing operational parameters rather than hardware configuration.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system incorporates feedback mechanisms where the control unit monitors the electrical device's response and adjusts control parameters in real-time. This feedback loop ensures that the generic battery pack can achieve device-specific control precision by continuously adapting to the actual device characteristics during operation, rather than relying solely on pre-configured parameters.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If extensive programming and adaptation are implemented for IoT capability, then functionality and control capability are improved, but ease of manufacture and ease of operation worsen

Engineering Contradiction:
ImproveIoT functionalityVSAvoidmanufacturing simplicity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The battery pack incorporates a universal IoT control platform that provides standardized communication protocols and control interfaces for multiple electrical devices. This universal design allows the same manufacturing process to produce battery packs capable of controlling different device types, significantly improving ease of manufacture compared to producing dedicated control units for each device type while maintaining full IoT functionality.

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

Solution Approach 2:

The system introduces a standardized communication interface and protocol layer as an intermediary between the battery pack and various electrical devices. This intermediary layer handles device-specific protocols and translations, allowing the battery pack to maintain simple manufacturing while achieving complex IoT functionality through the mediating communication layer that manages device-specific variations.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Manufacturing precision

If device-specific configuration is required for each electrical device, then control precision is improved, but ease of operation and setup time worsen

Engineering Contradiction:
Improvecontrol precisionVSAvoidsetup time
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The system pre-configures control parameters and algorithms in a database during manufacturing, associated with different electrical device types. When a user connects an electrical device, the control unit automatically retrieves the appropriate pre-configured parameters from the database based on device identification, eliminating the need for users to manually configure each parameter and significantly reducing setup time while maintaining control precision.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The control unit automatically detects the connected electrical device type through identification protocols and uses this feedback information to automatically select and apply the appropriate pre-configured control parameters from the database. This automatic feedback-based configuration eliminates manual setup steps while ensuring the correct device-specific parameters are applied, thereby improving ease of operation without sacrificing control precision.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4231411A1Control of an electric device by means of a battery pack
Publication Date: 2023.08.23 EINHELL GERMANY AG

AI summary

According to a method for controlling a first electrical device (4) by means of a battery pack (1), which can be optionally connected to the first electrical device (4) and at least one second electrical device, generic software for controlling the first electrical device (4) and the at least one second electrical device is stored on a memory element of the battery pack (1). User input is acquired, and configuration information is determined based on this input. The configuration information is transmitted to the battery pack (1) by means of an external computer system (10). The software is configured according to the configuration information, and the first electrical device (4) is controlled by the battery pack (1) by executing the configured software.