Rotary Imaging Speed Measurement Using On-Board Acceleration Sensing

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Solution Overview

Problem

Existing rotary imaging systems face challenges in accurately measuring the rotating speed of a lamp belt, especially when the system is in motion relative to a static reference point, and current gyroscopes are inadequate for high-speed applications.

Innovation Solution

A rotary imaging system that includes a circuit board rotating synchronously with the rotating body, equipped with acceleration detection components such as accelerometers, which obtain acceleration data to calculate the rotation speed and drive the lamp belt module for adaptive imaging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If photoelectric encoder or Hall element is used to measure rotating speed with static reference points, then measurement can be achieved under stationary conditions, but measurement becomes inaccurate or inapplicable when the lamp belt carrier rotates or moves relative to the ground

Engineering Contradiction:

Improverotating speed measurement accuracyVSAvoidapplicability under dynamic conditions

Core Design Contradiction:

Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent applies the dynamics principle by making the reference points dynamic rather than static. The reference points are formed by illuminated segments on the lamp belt itself that rotate with the carrier, allowing the measurement system to adapt to dynamic conditions. The acceleration detection component mounted on the circuit board detects acceleration of these dynamic reference points, enabling accurate speed measurement whether the carrier is stationary or moving/rotating.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If gyroscope is used to measure rotating speed, then measurement can be achieved without static reference points, but the maximum range of ±2000°/sec is insufficient for high-speed rotation applications

Engineering Contradiction:

Improvemeasurement capability without static referenceVSAvoidmaximum measurable rotating speed

Core Design Contradiction:

Adaptability or versatilityVSSpeed

Solution Approach 1:

The patent replaces the mechanical gyroscope system with an acceleration detection component (such as an accelerometer) that measures linear acceleration. By mounting the acceleration detection component on the circuit board and detecting the acceleration of reference points during rotation, the system calculates rotating speed through acceleration integration or differentiation, thereby eliminating the speed range limitation of gyroscopes and enabling high-speed rotation measurement.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Device complexity

If static reference points are used for speed measurement, then system structure can be simple under stationary conditions, but the system becomes inapplicable when the entire lamp belt carrier rotates

Engineering Contradiction:

Improvesystem structure simplicityVSAvoidapplicability under carrier rotation

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent applies the self-service principle by making the lamp belt itself serve as the reference for measurement. The illuminated segments on the lamp belt create dynamic reference points that move with the carrier, eliminating the need for external static reference structures. The acceleration detection component on the circuit board detects these self-generated reference points, allowing the system to function whether the carrier is stationary or rotating without requiring additional external reference structures.

Inventive Principle:

Principle #25Self-service

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 accurate and real-time measurement of the lamp belt's rotating speed, overcoming the limitations of static reference point methods and existing gyroscopes, allowing for high-speed and stable rotary imaging.

Implementation Method 1

an acceleration detection component installed at a predetermined position on the circuit board for acquiring acceleration detection data at the predetermined position when the circuit board rotates

Methodology Applied

Scientific EffectAcceleration detection: Accelerometer

Implementation Method 2

obtaining a rotation speed value of the circuit board based on the acceleration value and a position parameter corresponding to the predetermined position

Methodology Applied

Scientific EffectCentripetal acceleration: Centrifugal Force

Data Source

PatentUS11971129B1Rotary imaging system and method of rotary device and rotary device

Publication Date: 2024.04.30 DONGGUAN TESMAI ELECTRONICS TECH CO LTD

AI summary

The present invention relates to the field of rotary imaging, in particular to a rotary imaging system, a rotary imaging method and a rotary device. A rotary imaging system of a rotary device comprises a rotating body with a lamp belt module group; a circuit board installed on the rotating body, the circuit board rotating synchronously with the rotating body; an acceleration detection component installed at a predetermined position on the circuit board for acquiring acceleration detection data at the predetermined position when the circuit board rotates; and a control module used for obtaining an acceleration value of the predetermined position based on the acceleration detection data, further obtaining a rotation speed value of the circuit board based on the acceleration value and a position parameter corresponding to the predetermined position, and driving the lamp belt module group to realize rotary imaging based on the rotation speed value.