Electro-Hydraulic Double Feedback Loop for Remote Movement Synchronization
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Solution Overview
Problem
Existing systems for remotely operating machines lack the ability to accurately mimic the movements of one device by another without direct mechanical linkage, limiting their synchronization and responsiveness to external forces in real-time.
Innovation Solution
An electro-hydraulic circuit with interactive double feedback loops, comprising devices with actuators, hydraulic valve and sensor systems, and a central control unit that converts physical movements into digital signals for reciprocal synchronization, allowing devices to mimic each other's movements in direction, speed, and force without mechanical linkage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If direct mechanical linkage is used to synchronize movements between devices, then movement replication accuracy is improved, but system complexity and mechanical wear increase
Solution Approach 1:
The patent replaces direct mechanical linkages with an electro-hydraulic control system that uses sensors to detect movements and forces, converts them to electrical signals, and uses hydraulic actuators to replicate movements remotely. This substitution eliminates mechanical wear and complexity while maintaining synchronization accuracy through electronic feedback loops.
Solution Approach 2:
The patent introduces an intermediary electro-hydraulic control system between the master and slave devices. This intermediary system processes movement and force data through sensors and control circuits, translating mechanical movements into hydraulic actions that replicate the original movements without direct mechanical connection.
2Device complexity
If electro-hydraulic control systems are implemented to enable remote movement replication, then mechanical linkage complexity is reduced, but system response time and synchronization precision may deteriorate
Solution Approach 1:
The patent implements double feedback loops where sensors continuously monitor both the master device movements and the slave device responses. This feedback mechanism allows the control system to detect deviations in real-time and make corrective adjustments, ensuring synchronized operation and maintaining response precision despite the electro-hydraulic transmission delay.
Solution Approach 2:
The patent ensures continuous operation of the electro-hydraulic system with constant sensor monitoring and uninterrupted hydraulic fluid flow to actuators. This continuity eliminates dead zones and ensures that movement replication occurs without interruption, maintaining real-time synchronization.
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 precise and simultaneous replication of movements between devices in real-time, enhancing the responsiveness and coordination of remotely operating machines, such as humanoid robots, by continuously monitoring and controlling actuators to match external forces and movements.
Implementation Method 1
the sensor systems are capable of detecting the direction, speed, and mode of movements produced by each actuator, as well as the magnitude, orientation, and type of forces, pressures, and moments applied to the devices
Implementation Method 2
Each device has one or more actuators for causing or inducing movements of particular movable components of the device, with each device's associated hydraulic valve and sensor systems controlling the operation of the actuators
Data Source
AI summary
An electro-hydraulic circuit enabling two mechanical devices to shadow each other's movements without any direct mechanically-operative linkage between the devices. The two devices incorporate matching sets of hydraulic actuators for inducing movements of movable components of the devices. For each actuator in a given one of the devices, a system of electronic sensors and hydraulic valves, in conjunction with a central processing and control system, keeps track of the physical positions and configurations of the actuator and the corresponding actuator in the other device, and what the status of the actuators should be in relation to each other. If an actuator associated with one device is moved by an external force, a corresponding actuator in the other device moves in response to that external force, with proportionate direction, speed, and force.