Gyroscope Trolley Control on Inclined Surfaces
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Solution Overview
Problem
Gyroscopes on control handles of traction-assisted trolleys only measure angles relative to the horizontal plane, leading to discrepancies in data when the trolley travels on inclined surfaces, resulting in incorrect control of movement.
Innovation Solution
A gyroscope-based control method that acquires angles θA between the trolley and the horizontal plane, θB between the control handle and the horizontal plane, and swing angle θD, processing these to determine θC between the control handle and the travel surface, enabling precise control operations based on θC and θD.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single gyroscope is used on the control handle to measure angle relative to horizontal plane, then the device complexity is reduced, but the measurement precision of control handle angle relative to travel surface deteriorates on inclined surfaces
Solution Approach 1:
The measurement function is segmented into two independent gyroscopes: one on the trolley measuring trolley inclination (θA), and one on the control handle measuring handle inclination (θB). This segmentation allows each sensor to measure its local angle independently, and the control center combines these measurements to calculate the accurate relative angle (θC = θA + θB), resolving the measurement precision issue without requiring a single complex sensor.
Solution Approach 2:
The control center acts as an intermediary that receives data from both gyroscopes, processes the angles θA and θB, and calculates the relative angle θC. This intermediary processing step bridges the gap between the two independent measurements, enabling accurate control on inclined surfaces while maintaining device simplicity.
2Device complexity
If the gyroscope measures angle relative to horizontal plane, then the measurement system is simple, but the control accuracy on inclined surfaces deteriorates
Solution Approach 1:
The solution transitions from a single-reference-frame measurement (horizontal plane only) to a multi-reference-frame system. By measuring both trolley inclination and handle inclination relative to the horizontal plane, and then combining these measurements, the system effectively creates a coordinate transformation that accounts for inclined surface conditions, improving control reliability without complicating the individual measurement systems.
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 control of trolley movement and direction on various surfaces by determining the angle between the control handle and the actual travel surface, regardless of incline, through processing angles θA, θB, and θD.
Implementation Method 1
acquiring the angle θA between the trolley and the horizontal plane using a first gyroscope fixed to the trolley
Implementation Method 2
obtaining the angle θB between the control handle and the horizontal plane using a second gyroscope fixed to the control handle
Data Source
Figure 1
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AI summary
This disclosure pertains to a gyroscope-based control method for a trolley and a traction-assisted trolley. By receiving and processing the angle θA between the trolley and the horizontal plane, as well as the angle θB between the control handle and the horizontal plane, the method calculates the angle θC between the control handle and the driving surface. Based on angle θC, the trolley is controlled to perform a first preset operation, enabling the trolley to execute the first preset operation according to the position of the control handle, regardless of whether it is traveling on a horizontal or inclined surface. This achieves the objective of driving and controlling the trolley's movement based on the position of the control handle. Additionally, the disclosure controls the trolley to perform a second preset operation by receiving and determining the swing angle θD of the control handle in the vertical plane perpendicular to the trolley's direction of travel, thereby controlling the trolley's steering direction. This method accurately controls the trolley's movement on different surfaces by acquiring and processing the angle between the trolley and the horizontal plane, as well as the angle between the control handle and the horizontal plane, to determine the angle between the control handle and the actual driving surface, and subsequently controlling the trolley based on the position of the control handle.