Trolley Brake Control for Variable-Speed Zipline Tracks
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Solution Overview
Problem
Existing trolley systems, such as those used in ziplines, lack effective braking mechanisms that can adapt to different rider weights and external inputs, leading to inconsistent speed control and safety concerns.
Innovation Solution
The integration of a variable brake system within the trolley that can be activated by internal or external control inputs, allowing for modulated braking to control speed and stop the trolley effectively, regardless of rider weight or external conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a passive brake system is used in the trolley, then the structure is simple, but the speed control is inconsistent and cannot adapt to different rider weights
Solution Approach 1:
The brake system transitions from a static passive mechanism to a dynamic active system that can adjust braking force in real-time based on rider weight, speed, and track conditions. The brake actuator and control system enable continuous modulation of brake application to maintain optimal braking performance across varying operating conditions.
Solution Approach 2:
The control system receives feedback from sensors that monitor rider weight, trolley speed, and brake performance. This feedback loop allows the controller to automatically adjust braking force to compensate for different rider weights and maintain consistent speed control, eliminating the need for manual brake adjustment.
2Device complexity
If a passive brake system is used, then the device complexity is low, but the speed control precision is poor and cannot be modulated
Solution Approach 1:
The control system continuously monitors trolley speed and brake performance, automatically adjusting braking force to achieve precise speed control. Sensors provide real-time feedback on speed and position, allowing the controller to modulate the brake actuator for accurate speed regulation throughout the ride.
Solution Approach 2:
The brake system dynamically changes braking parameters such as force magnitude and application timing based on real-time operating conditions. The controller adjusts these parameters to maintain optimal speed control precision across different rider weights, track sections, and environmental conditions.
3Ease of operation
If a single maximum speed is pre-set with a passive brake, then the system is simple to operate, but the speed cannot be altered during the ride
Solution Approach 1:
The brake system performs self-adjustment through automated control based on sensor feedback, eliminating the need for manual brake adjustment by operators. The system autonomously adapts braking force to different rider weights and track conditions, providing both ease of operation and speed modulation capability simultaneously.
4Device complexity
If zipline systems are used for single vector runs, then the design is simple, but the ride duration is limited and cannot accommodate multiple riders efficiently
Solution Approach 1:
The track system is designed to accommodate multiple trolleys with riders simultaneously, enabling parallel operation and increased throughput. The system can handle multiple riders on different sections of the track at the same time, significantly improving productivity while maintaining relatively simple track infrastructure.
Data Source
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AI summary
Trolley systems and associated rails and tracks are described, the trolleys having an integrated brake system that can be adapted to slow or stop the trolley based on various control inputs (internal or external). The track system may be formed from either or both of a series of tensioned cables or tracks that are interconnected with transition system and the trolleys described, able to transition between track systems. The track system may be fitted with additional braking elements to govern motion of the trolley along a track system. Additionally, the track may be fitted with other elements that provide an external input into the trolley to modify the braking operation of the trolley. A gating mechanism is provided that prevents the trolley (43) from leaving the cable (44) and opens to allow the passage of a rail section (130).