Multi-Parameter Power Detection for Robotic State Identification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Robotic devices face challenges in determining their operational states accurately, especially when encountering external torques or mechanical stalls, which can lead to unintended operations and increased downtime due to inefficiencies in power measurement and state detection.
Innovation Solution
A method and system that utilize sensors to measure electrical and mechanical power, determining possible states of operation by analyzing combinations of voltage, current, torque, and velocity, and providing this information to a detector to prevent unintended operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional single-parameter detection methods are used, then the device complexity is low, but the measurement precision of operational states is insufficient
Solution Approach 1:
The patent combines multiple detection parameters (electrical power, mechanical power, current, voltage, torque, velocity) into a unified operational state detection system. By merging these different measurement dimensions, the system achieves comprehensive and accurate state identification while avoiding the limitations of single-parameter detection methods.
Solution Approach 2:
The detection system is designed to handle multiple operational states (motoring, generating, braking, stalling) using a single multi-functional framework. The system can detect and differentiate between various states by analyzing combinations of electrical and mechanical power measurements, making it universally applicable across different operational conditions.
2Reliability
If comprehensive power measurements are implemented, then the reliability of state detection is improved, but the loss of time for data processing increases
Solution Approach 1:
The system pre-establishes the relationships between different power parameter combinations and their corresponding operational states. By having the detection logic and state mapping prepared in advance, the system can quickly determine operational states through direct comparison without requiring complex real-time calculations, thus reducing data processing time while maintaining high reliability.
Solution Approach 2:
The system continuously monitors and compares measured power parameters against expected ranges for different operational states, providing real-time feedback on the current state. This feedback mechanism enables rapid state identification and allows the system to adapt to changing conditions while maintaining detection reliability.
Data Source
AI summary
Examples are provided that describe a model free power detector. In one example, a method includes receiving, by one or more computing devices, a measurement of electrical power to a robotic device. The method also includes receiving, by the one or more computing devices, a measurement of mechanical power by the robotic device. Based on combinations of the electrical power to the robotic device being one of positive, negative, or about zero, and the mechanical power by the robotic device being one of positive, negative, or about zero, the method includes determining possible states of operation of the robotic device. The method also includes providing, by the one or more computing devices, the possible states of operation of the robotic device to a detector.