Unified Memory Control Apparatus Data Transfer Overhead

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Solution Overview

Problem

Conventional control apparatuses experience increased overhead and reduced control speed due to the need to transfer control variables from one storage area to another, especially when interacting with off-system modules, leading to inefficient data transfer times.

Innovation Solution

A control apparatus with a common memory area that stores both control target information and control information, allowing direct transfer from the control target to the off-system control apparatus without intermediate memory copies, thereby reducing overhead and enhancing control speed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If data is transferred from I/O control variable storage area to control data memory for transmission module variable, then data can be exchanged between control apparatus and off-system control apparatus, but overhead increases and control speed decreases

Engineering Contradiction:

Improvedata transfer speedVSAvoiddata transfer time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent merges the I/O control variable storage area and the transmission module variable storage area into a single unified memory area. This allows data to be directly accessed by both the I/O interface and the data transmission circuit without requiring copying between separate storage areas, thereby eliminating transfer overhead and improving control speed

Inventive Principle:

Principle #5Merging (Combining)

2Device complexity

If separate memory areas are used for I/O control variables and transmission module variables, then data management is organized, but data transfer requires copying and increases overhead

Engineering Contradiction:

Improvememory structure organizationVSAvoidcontrol operation speed

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The patent combines multiple separate memory areas (I/O control variable storage area and transmission module variable storage area) into a single unified memory area that can be accessed by both the I/O interface and the data transmission circuit, eliminating the need for data copying while maintaining organized data management

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If data is copied from control apparatus memory to off-system module memory, then data exchange is enabled, but additional data transfer time is consumed

Engineering Contradiction:

Improvedata exchange capabilityVSAvoiddata transfer time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent creates a unified memory area that is directly accessible by both the control apparatus and the off-system module through the data transmission circuit, eliminating the need for intermediate copying operations and enabling direct data exchange between the control apparatus and off-system modules

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS7643888B2Control apparatus

Publication Date: 2010.01.05 KK TOSHIBA

AI summary

A control apparatus which generates control information on the basis of control target information from a control target, controls the control target by using the generated control information, and transmits the control information to an off-system control apparatus, includes a single common memory which stores both the control target information from the control target, and the transmitted control information.