Portable Terminal Prioritizes Maintenance Data Transmission

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Solution Overview

Problem

Image forming apparatuses face challenges in transmitting maintenance information due to security concerns and limitations in data transmission capabilities via external networks, particularly with large data sizes and high communication costs associated with portable terminals.

Innovation Solution

A portable terminal equipped with a processor, communication device, and USB port, which records maintenance information from an external recording medium and determines transmission priority based on available communication lines and determination information from a maintenance server, allowing selective and efficient data transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If maintenance information is transmitted using a portable terminal, then the image forming apparatus can transmit maintenance information to the service center, but the communication cost increases and data transmission time extends due to large data size

Engineering Contradiction:
Improvemaintenance information transmissionVSAvoidcommunication cost
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The maintenance information is segmented into multiple priority levels (high priority and low priority). High priority information is transmitted immediately when network conditions permit, while low priority information is transmitted later or through alternative means. This segmentation allows the system to transmit critical maintenance data reliably while managing communication costs by deferring non-critical data transmission.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The transmission strategy dynamically adjusts based on network conditions and priority levels. The system can switch between different transmission modes (e.g., wireless communication for high priority, alternative channels for low priority) based on real-time availability and cost considerations, optimizing the balance between reliable transmission and communication cost.

Inventive Principle:
Principle #15Dynamics

2Reliability

If maintenance information is transmitted using a portable terminal, then the image forming apparatus can transmit maintenance information to the service center, but the transmission time increases due to large data size

Engineering Contradiction:
Improvemaintenance information transmissionVSAvoiddata transmission time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The maintenance information is divided into high priority and low priority segments. High priority information is transmitted immediately when network conditions permit, reducing the overall transmission time for critical data, while low priority information is transmitted later, accepting that it will take longer but ensuring that critical maintenance information is delivered promptly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs preliminary actions by identifying and preparing high priority maintenance information for immediate transmission when network conditions are favorable. This preliminary classification and preparation ensures that critical data can be transmitted quickly without waiting for the entire data set to be processed, thereby reducing the overall transmission time for essential information.

Inventive Principle:
Principle #10Preliminary action

3Object-affected harmful factors

If permission for connecting to external network is not obtained due to security concerns, then security risks are reduced, but the image forming apparatus cannot transmit maintenance information to the service center

Engineering Contradiction:
Improvesecurity riskVSAvoidmaintenance information transmission
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The portable terminal acts as an intermediary device between the image forming apparatus and the service center. Instead of the image forming apparatus directly connecting to external networks (which would pose security risks), the portable terminal receives maintenance information from the apparatus and transmits it to the service center. This intermediary approach maintains security by keeping the image forming apparatus isolated from external networks while still enabling maintenance information transmission.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The portable terminal performs self-service functions by autonomously receiving maintenance information from the image forming apparatus and independently transmitting it to the service center. This self-service capability eliminates the need for the image forming apparatus to have external network permissions, maintaining security while enabling transmission through the portable terminal's independent operation.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11907914B2Maintenance portable terminal and control method therefor
Publication Date: 2024.02.20 TOSHIBA TEC KK
  • US11907914B2 patent drawing
  • US11907914B2 patent drawing
  • US11907914B2 patent drawing

AI summary

According to an embodiment, a portable terminal provides maintenance information to a maintenance server that manages the maintenance information. The portable terminal acquires the maintenance information from an external recording medium. The portable terminal acquires, from the maintenance server, rank information indicating a transmission priority defined for the maintenance information. The portable terminal determines, in accordance with a type of a communication line that can be used by a communication device and the rank information, whether to transmit the maintenance information.