Network Controller Display System for Initialization and Alarm Modes

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Solution Overview

Problem

Conventional display systems for controllers connected via networks fail to display data during initialization, system alarms, and are inefficient in error detection due to poor network conditions, requiring separate video signal-connected display devices.

Innovation Solution

A network-connected display system with a network control program that manages operation modes, including initialization, normal operation, and alarm modes, allowing data transmission and display across these modes, using a display device with corresponding display control programs and a communication processor to ensure continuous data display and status monitoring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the controller and display device are connected by network for normal operation, then communication function is achieved, but display data cannot be displayed during initialization or system alarm

Engineering Contradiction:
Improvedisplay capability across operation modesVSAvoiddisplay availability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies dynamics by making the network control program adaptable to different operation modes (initialization, normal operation, alarm). The display system dynamically switches between different communication protocols and data formats based on the controller's current mode, enabling display functionality across all states rather than being static and limited to normal operation only.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The network control program is designed with multi-functionality to handle multiple operation modes including initialization, normal operation, and alarm states. A single integrated system performs diverse functions by adapting its communication behavior, eliminating the need for separate display systems for different operational states.

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

2Device complexity

If network communication is used for display data transmission, then system integration is improved, but error detection is time-consuming under poor network conditions

Engineering Contradiction:
Improvesystem integrationVSAvoiderror detection time
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The patent implements feedback mechanisms where the display device sends acknowledgment signals back to the controller to confirm successful data reception. This bidirectional communication enables real-time error detection and verification, allowing the system to quickly identify communication failures without waiting for timeout periods, thus reducing error detection time while maintaining system integration.

Inventive Principle:
Principle #23Feedback

3Reliability

If a separate display device connected by video signals is used for maintenance, then display reliability during malfunction is improved, but system complexity and maintenance requirements increase

Engineering Contradiction:
Improvedisplay availability during malfunctionVSAvoiddisplay system configuration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The network control program acts as an intermediary that enables the display device to directly communicate with the controller across all operation modes. This eliminates the need for a separate video-connected display device by making the network communication path sufficient and reliable for all states, including maintenance and alarm conditions, thereby reducing overall system complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS7389150B2Display system for controller
Publication Date: 2008.06.17 FANUC LTD
  • US7389150B2 patent drawing
  • US7389150B2 patent drawing
  • US7389150B2 patent drawing

AI summary

A controller and a display device are connected to each other by a network. The controller comprises a network control program which controls a network control section to communicate with the display device for each of a plurality of operation modes, including an initialization mode, a normal action mode, and an alarm mode. Various data, such as operation mode information for the controller, are transmitted to the display device connected by the network through the network control section and display data is displayed on the display device.