Motion-Sensitive Plush Toy with Accelerometer-Based Movement Detection
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Solution Overview
Problem
Current plush toys lack innovation and fail to encourage physical and social interaction in children, as they are limited to static play and do not effectively detect fine movements due to the high cost of motion-sensing technology.
Innovation Solution
A motion-sensitive plush toy system that uses an accelerometer to detect and differentiate various movement states, such as free fall, hit, shake, and catch, enabling interactive gameplay and encouraging physical activity through sound responses and game modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If motion-sensing technology is used to detect fine movements, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent uses a microcontroller unit (MCU) with integrated accelerometer capabilities to replicate the function of expensive dedicated motion-sensing systems. The MCU copies the acceleration sensing functionality at a fraction of the cost, achieving fine movement detection without requiring complex external sensor assemblies.
Solution Approach 2:
The microcontroller unit serves multiple functions: it acts as the central processor, integrated accelerometer, and control unit for the toy's electronic components. This multi-functionality eliminates the need for separate dedicated motion-sensing hardware, reducing overall device complexity while maintaining detection precision.
2Measurement precision
If multiple sensors are integrated to detect various movement states, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The microcontroller unit is designed to perform multiple sensing functions through software algorithms that analyze acceleration data from its integrated accelerometer. It detects free fall, impact, shaking, and carrying states by interpreting patterns in the acceleration signals, eliminating the need for separate sensors for each movement type.
Solution Approach 2:
The system detects different movement states by analyzing changes in acceleration parameters (magnitude, direction, duration, frequency) from the integrated accelerometer. By varying the threshold values and analysis algorithms, the same sensor can distinguish between multiple movement states without requiring additional hardware.
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
The system promotes active play, sustains children's attention, and facilitates social interaction by allowing for unique gameplay opportunities and group play, providing an alternative to screen time.
Implementation Method 1
The construction and method of operation of the invention, however, together with additional objectives and advantages thereof will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.
Data Source
AI summary
A throw-and-catch based toy with free fall sensing, impact sensing, and speaker output which includes a system, method and device for detecting a pre-determined motion from an accelerometer, comparing a sensed accelerometer information to a pre-determined accelerometer signature information, producing a sound based on the comparison of sensed accelerometer information to a pre-determined accelerometer signature information.