Inertia Sensing Module for Portable Devices
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Solution Overview
Problem
Conventional inertia sensing systems for portable electronic devices require additional input devices like keyboards or remote controllers, leading to inaccurate and delayed responses in graphic user interfaces, as they cannot effectively simulate real-world motions without complex signal processing.
Innovation Solution
An inertia sensing module connected to a portable electronic device, comprising an accelerometer and gyroscope unit, a microprocessor control unit, and a wireless signal transmission module, which generates and outputs control signals directly from user motions, eliminating the need for additional input devices and simplifying the circuit structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional inertia sensing elements are used with additional input devices (keyboard, mouse, touch panel), then the system can process user inputs, but the response accuracy and sensitivity to user motions deteriorates due to complex signal processing delays
Solution Approach 1:
The patent combines the inertia sensing element directly with the microprocessor control unit and wireless signal transmission device into an integrated portable electronic device. This merging eliminates the need for separate input devices and complex signal processing chains, allowing direct conversion of acceleration and angular rate sensing signals into control signals for the graphic user interface, thereby improving response accuracy while reducing device complexity
Solution Approach 2:
The microprocessor control unit in the portable electronic device performs multiple functions: it processes sensing signals from the inertia sensing element, converts them into digital signals, generates control signals for the graphic user interface, and manages wireless communication. This multi-functionality eliminates the need for dedicated signal processing circuits for each input device, reducing overall system complexity while maintaining high measurement precision
2Ease of operation
If additional input devices are used to operate graphic user interfaces, then more input methods are available, but the system cannot respond sensitively to specific user motions due to complicated processing steps
Solution Approach 1:
By merging the inertia sensing element with the microprocessor and wireless transmission capabilities in a single integrated device, the system enables direct and sensitive response to user motions without the time delays associated with multiple processing steps across separate devices
Solution Approach 2:
The microprocessor control unit is pre-configured with the capability to directly process acceleration and angular rate sensing signals and convert them into control signals. This preliminary preparation of the signal processing pathway eliminates runtime delays and enables immediate response to user motions, improving both ease of operation and reducing response time loss
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 users to interact with graphic user interfaces and electronic game players using their own motions without additional devices, providing sensitive and accurate control signals through a compact and efficient module that records and adjusts motion habits for improved performance.
Implementation Method 1
an accelerometer unit for generating at least one of acceleration sensing signals ax, ay, az corresponding to the directions of X, Y, Z respectively when subjected to accelerations in the directions of X, Y, Z
Implementation Method 2
a gyroscope unit for generating at least one of angular rate sensing signals ωx, ωy, ωz corresponding to the rotational axes X, Y, Z, respectively when subjected to angular rates along the rotational axes X, Y, Z
Data Source
AI summary
An inertia sensing module is connected to a portable electronic device. The inertia sensing module includes an accelerometer unit for generating at least one of acceleration sensing signals ax, ay, az corresponding to the directions of X, Y, Z respectively; a gyroscope unit for generating at least one of angular rate sensing signals ωx, ωy, ωz corresponding to the axes of X, Y, Z respectively; and a connector module having a plug that is inserted into a docking connector of the portable electronic device. With the inertia sensing module being connected to or disconnected from the portable electronic device, a user can control a specific cursor or graphic user interface on a picture of an electronic game player via his/her own motions.