Robot Controller Identity Verification Before Motor Activation
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Solution Overview
Problem
Existing robotic systems face issues where controllers, manufactured separately, are mistakenly attached to incorrect robots, leading to unpredictable and potentially dangerous movements due to mismatch detection only occurring during operation, with brakes taking hundreds of milliseconds to engage.
Innovation Solution
A method involving a controller that sends excitation signals to robot motors, receives feedback signals, determines motor parameters, and compares them with pre-stored identities to ensure matching before allowing operation, reporting errors or disabling the robot if mismatches are detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the controller is manufactured separately and assembled to the robot, then manufacturing flexibility and ease of assembly are improved, but the risk of controller-robot mismatch increases, leading to unsafe operation
Solution Approach 1:
The patent applies preliminary action by performing identity verification between the controller and robot before the robot begins operation. The controller obtains parameters of the robot's motors, retrieves corresponding models from a database, determines an identity based on these parameters, and compares it with a pre-stored identity. This pre-check prevents mismatched combinations from operating, resolving the contradiction by ensuring safety through advance verification while maintaining manufacturing flexibility.
2Device complexity
If mismatch detection is performed during robot operation, then the detection mechanism is simple, but the response time is too long (hundreds of milliseconds for brake engagement), causing potential disasters
Solution Approach 1:
The patent eliminates the time loss by performing identity verification before operation begins, rather than during operation. The controller checks motor parameters, retrieves models from database, determines identity, and compares it with pre-stored identity all before the robot starts moving. This preliminary verification ensures that no time is lost during actual operation, as any mismatch is detected and prevented beforehand.
Solution Approach 2:
The patent replaces the mechanical brake system with an electrical/electronic verification system. Instead of relying on mechanical brakes that take hundreds of milliseconds to engage, the system uses electrical parameter measurement, database retrieval, and digital identity comparison to verify controller-robot matching. This substitution of mechanical verification with electronic verification dramatically reduces the detection time while maintaining simplicity through automated parameter comparison.
3Ease of operation
If the controller uses pre-stored configuration data, then the control system is simple to operate, but it cannot detect mismatches with different robot models
Solution Approach 1:
The patent replaces static configuration data verification with dynamic parameter measurement. Instead of simply checking pre-stored configuration data, the controller actively obtains actual motor parameters from the robot, retrieves corresponding models from a database, and performs identity determination and comparison. This substitution of static data checking with dynamic measurement and comparison enhances verification accuracy while maintaining ease of operation through automated processes.
Solution Approach 2:
The patent implements feedback by having the controller obtain actual motor parameters from the robot, compare them with database models, and use this feedback information to determine identity and verify matching. The system continuously verifies the controller-robot combination through parameter feedback, ensuring accurate identity verification while keeping the operation simple through automated feedback-based validation.
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 early detection of controller-robot mismatches, ensuring safer robotic system operation by preventing unexpected movements and potential hazards.
Implementation Method 1
determining resistance and inductance of the windings based on the feedback signals and the at least one excitation signal
Implementation Method 2
sending at least one excitation signal to the plurality of motors of the robot from the controller; receiving the feedback signals that are provided by the plurality of motors in response to the at least one excitation signal
Data Source
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AI summary
Embodiments of present disclosure relates to a method for robot control. The method comprises: obtaining at least one parameter associated with a robot to be controlled by a controller; determining a first identity of the robot based on the at least one parameter; comparing the first identity with a pre-stored second identity; and in response to the first identify matching the second identity, controlling operations of the robot with the controller. Embodiments of present disclosure can detect the mismatch between the controller and the robot in an easy, safe and convenient way.