Interchangeable Robot End-of-Arm Tool Tracking Across Controllers
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Solution Overview
Problem
Current methods for monitoring end-of-arm tool (EOAT) usage and maintenance data are inadequate for interchangeable EOATs across multiple robots, as they rely on individual robot controllers, leading to data loss and manual tracking.
Innovation Solution
A system with a unique identifier for each EOAT, a data collection device communicating with all robot controllers, and a centralized database for storing and managing EOAT usage and maintenance data, allowing data exchange and automatic tracking across robots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual robot controllers monitor EOAT usage data, then each robot can track its own tool data, but data is lost when tools are exchanged between robots and manual tracking is required
Solution Approach 1:
A centralized monitoring system acts as an intermediary between multiple robot controllers and the EOAT tools. This central system receives usage data from all robots, maintains a unified database of tool histories, and coordinates data exchange when tools are moved between robots, eliminating data loss while avoiding the complexity of inter-robot communication protocols
Solution Approach 2:
The centralized monitoring system serves multiple functions: it monitors usage data from multiple robots, maintains historical records for each tool, manages tool exchange coordination, and provides a unified interface for tracking tool conditions across the entire facility, replacing multiple individual monitoring systems with one universal platform
2Productivity
If manual tracking is used for interchangeable EOATs, then system complexity is reduced, but productivity and time efficiency deteriorate
Solution Approach 1:
The monitoring system automatically performs data collection, storage, and exchange operations without human intervention. When an EOAT is attached to or detached from a robot, the system autonomously updates usage data, transfers information between robots, and maintains accurate records, eliminating the need for manual data tracking and freeing personnel for higher-value tasks
3Extent of automation
If a centralized data collection system is implemented, then data accuracy and automation improve, but device complexity increases
Solution Approach 1:
The system combines multiple data collection functions, database management capabilities, and communication interfaces into a single centralized platform. By merging these previously separate functions into one integrated system, the patent achieves high automation while managing complexity through unified architecture rather than multiple independent systems
4Loss of information
If EOAT usage data is stored only on individual robot controllers, then system simplicity is maintained, but data loss occurs during tool exchange
Solution Approach 1:
The patent transitions from storing data in a single dimension (individual robot controllers) to a multi-dimensional architecture where a centralized database provides the primary data repository while individual robot controllers maintain local access. This dimensional change ensures data persistence during tool exchanges while providing easy accessibility from multiple points in the system
Data Source
AI summary
A method and system for monitoring the usage of interchangeable end-of-arm tools across multiple robots. Each tool is assigned a unique identifier maintained in a database. At each facility where robots are installed, a data collection device communicates with all robot controllers and provides centralized storage and monitoring of usage and maintenance data for each end-of-arm tool. Each time a tool is attached to a robot, the controller downloads the current data for the tool from the data collection device. Likewise, each time a tool is detached from a robot, the controller uploads updated data for the tool to the data collection device. The data collection device maintains cumulative usage data for each tool, provides a user interface to the data to allow monitoring by personnel, and sends notifications of important pending maintenance requirements and any performance issues. The data is also stored on a cloud server for global access.