Two-Axis Accelerometer Linear Arc Movement Detection
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Solution Overview
Problem
Existing human movement sensing devices require separate accelerometers and gyroscopes to detect linear and arc movements, leading to complex signal processing and high manufacturing costs, with no integrated solution available.
Innovation Solution
A sensing device using a two-axis accelerometer with a signal processor, initial orientation unit, and data storage unit to differentiate between linear and arc movements by calibrating acceleration data and transmitting this information to electrical devices via wireless or wired means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate accelerometers and gyroscopes are used to detect linear and arc movements, then measurement precision is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the functions of separate accelerometers and gyroscopes into a single accelerometer device. The accelerometer detects both linear acceleration and rotational motion by measuring acceleration vectors in multiple directions, eliminating the need for separate gyroscope components while maintaining measurement capabilities for both linear and arc movements.
Solution Approach 2:
The accelerometer is designed to perform multiple functions: detecting linear acceleration, detecting rotational acceleration, and providing data for both linear and arc movement analysis. This multi-functional approach replaces the need for specialized sensors for each type of motion detection.
2Measurement precision
If separate accelerometers and gyroscopes are used to detect linear and arc movements, then measurement precision is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines the functions of separate accelerometers and gyroscopes into a single accelerometer device. The accelerometer detects both linear acceleration and rotational acceleration by measuring acceleration vectors in multiple directions, eliminating the need for separate gyroscope components while maintaining measurement capabilities for both linear and arc movements.
3Adaptability or versatility
If accelerometers and gyroscopes are used simultaneously, then measurement capability is improved, but signal processing complexity increases
Solution Approach 1:
The accelerometer is designed to perform multiple functions: detecting linear acceleration, detecting rotational acceleration, and providing data for both linear and arc movement analysis. This multi-functional approach replaces the need for specialized sensors for each type of motion detection.
Solution Approach 2:
The patent extracts the rotational detection capability from the gyroscope function and implements it through the accelerometer by detecting rotational acceleration components. This eliminates the need to process separate gyroscope signals and simplifies the overall signal processing architecture.
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 simultaneous detection and measurement of linear and arc movements without additional inertial devices, simplifying signal processing and reducing costs, while allowing user interaction with electrical devices in a multimedia fashion.
Implementation Method 1
at least a two-axis accelerometer, for detecting accelerations measured along a first direction and a second direction and thus issuing a sensing signal corresponding to the detection
Data Source
AI summary
A sensing device for measuring movement along linear/arc path, being adapted to adhere to a body, is capable of determining specific movements of the body, which comprises: at least a two-axis accelerometer, for detecting accelerations measured along a first direction and a second direction and thus issuing a sensing signal corresponding to the detection; a signal processor, for processing the sensing signal received thereby and thus providing a data of acceleration; and a means of measurement, capable of determining and measuring a linear/arc movement of the body with respect to the data of acceleration.