Networked Robot Teaching Control for Multi-Robot Synchronization

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Solution Overview

Problem

Current robot systems require multiple teaching devices for each robot controller, leading to low work efficiency and an inability to synchronize operation timings across multiple robots, with hardware limitations restricting the number of connected robots and their models.

Innovation Solution

A control system that allows a single teaching device to communicate with and teach multiple robot controllers and servo drivers simultaneously via a network, using a field network for data exchange and synchronization, enabling synchronized operation and model flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If one teaching device is used for each robot controller, then each robot can be taught independently, but work efficiency is low and multiple teaching devices are required

Engineering Contradiction:
Improvework efficiencyVSAvoidnumber of teaching devices
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges multiple teaching device functions into a single teaching device by enabling it to communicate with multiple robot controllers simultaneously through a network. The teaching device can select different communication destinations (robot controllers) and transmit teaching commands to multiple robots at once, eliminating the need for multiple separate teaching devices while maintaining independent teaching capability for each robot.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The teaching device is designed with universal communication capabilities that allow it to interface with multiple types of robot controllers through a network. It can dynamically switch communication destinations and adapt to different robot models, making a single device capable of performing the functions previously requiring multiple specialized teaching devices.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If communication destination is switched for each teaching target, then multiple robots can be taught, but teaching must be performed repeatedly and work efficiency remains low

Engineering Contradiction:
Improvework efficiencyVSAvoidteaching time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent enables continuous teaching action by allowing the single teaching device to communicate with multiple robot controllers simultaneously through networked communication. Instead of switching between robots sequentially, the system maintains continuous teaching operations across multiple robots at the same time, eliminating idle time and repeated setup procedures.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The system performs preliminary configuration of communication routes and destinations before teaching begins. The teaching device can pre-set multiple communication destinations and select appropriate routes in advance, so that when teaching multiple robots is required, the device can immediately begin simultaneous teaching without time-consuming switching operations.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If only one robot controller can be taught at a time, then teaching is simple, but it is impossible to synchronize operation timings across multiple robots

Engineering Contradiction:
Improvesynchronization capabilityVSAvoidteaching capability
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements feedback mechanisms where the teaching device receives status information from multiple robot controllers simultaneously through the network. By monitoring communication status, teaching progress, and operational states of multiple robots in real-time, the system can synchronize teaching operations and ensure coordinated operation timings across all taught robots.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system transitions from sequential one-dimensional teaching (one robot at a time) to parallel multi-dimensional teaching by utilizing network communication routes. This allows the teaching device to operate in multiple communication dimensions simultaneously, teaching multiple robots in parallel while maintaining the ability to synchronize their operations through coordinated command transmission.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Adaptability or versatility

If hardware restrictions limit the number of connected robots, then system complexity is reduced, but adaptability and flexibility are limited

Engineering Contradiction:
Improvenumber of connected robotsVSAvoidhardware configuration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces physical hardware connections with network-based communication. Instead of requiring direct hardware interfaces between the teaching device and each robot controller, the system uses a network infrastructure to transmit teaching commands and data. This substitution eliminates hardware connection limits and allows any number of robots to be connected and taught through the single teaching device.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The teaching device is designed with universal network communication capabilities that allow it to interface with multiple types and numbers of robot controllers without hardware modifications. The system can adapt to different robot models and connection configurations through software-based communication protocols, providing versatility without increasing physical hardware complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3483684B1Control system
Publication Date: 2023.11.22 OMRON CORP
  • EP3483684B1 patent drawingFigure 1
  • EP3483684B1 patent drawingFigure 2
  • EP3483684B1 patent drawingFigure 3

AI summary

A control system (1) includes a plurality of driving devices (500, 520, 530, 530A to 530C) that are connected to a network (2) and drive a plurality of control targets (522, 532 to 534), a control device (100) that controls the plurality of driving devices (500, 520, 530, 530A to 530C) via the network (2), and a teaching device (200) for teaching operations of corresponding control targets to the plurality of driving devices (500, 520, 530, 530A to 530C). The teaching device (200) transmits a command for driving the corresponding control target to at least one driving device among the plurality of driving devices (500, 520, 530, 530A to 530C) via the network (2).