Portable Terminal Master-Slave System State Control

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Solution Overview

Problem

Existing portable terminals with hybrid system architecture face challenges in automatically switching system states when a master system and a slave system are combined or disconnected, requiring manual user intervention to ensure consistent operation.

Innovation Solution

A system-state control method that allows the first and second systems to interact on their respective system-state information and perform control according to a predetermined strategy, enabling automatic switching based on predefined conditions or notifications, eliminating the need for user-controlled hardware switches.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual user intervention is used to switch system states when master and slave systems are combined or disconnected, then system state consistency can be ensured, but user operation complexity increases and automation is reduced

Engineering Contradiction:
Improvesystem state consistencyVSAvoiduser operation complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system automatically detects connection/disconnection events and switches states without user intervention. The master system and slave system autonomously determine their own state transitions based on connection status, eliminating the need for manual user operations while ensuring consistent state management.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements state information interaction between master and slave systems. When connection status changes, each system receives feedback about the other's state and automatically adjusts its own state accordingly, ensuring consistency through automated feedback loops rather than manual intervention.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If automatic system state switching is implemented based on connection status, then user operation is simplified, but system complexity increases due to state interaction mechanisms

Engineering Contradiction:
Improveautomation levelVSAvoidstate interaction mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system pre-establishes state switching strategies and rules before connection events occur. When connection or disconnection happens, the predetermined strategies are automatically executed, simplifying the real-time decision-making process while maintaining automation. The complexity is managed by preparing state transition logic in advance rather than creating it dynamically.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If the master system and slave system exchange system-state information continuously, then automatic state switching accuracy is improved, but energy consumption increases

Engineering Contradiction:
Improvestate information accuracyVSAvoidenergy consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

Instead of continuous information exchange, the system performs state information interaction periodically or at specific trigger events (connection/disconnection). This periodic approach maintains adequate state information accuracy for automatic switching while significantly reducing energy consumption compared to continuous monitoring and communication.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS9652254B2System status control method and portable terminal
Publication Date: 2017.05.16 LENOVO (BEIJING) LTD
  • US9652254B2 patent drawing
  • US9652254B2 patent drawing
  • US9652254B2 patent drawing

AI summary

A system status control method and a portable terminal are described. The portable terminal includes a first system with a first interface and a second system with a second interface, and the first system and the second system are joined or separated through the first interface and the second interface. The method includes when the first system and the second system enter a joined-up status from a separated status, the first system and the second system exchanging respective system status information thereof; and the first system and the second system control the system status according to the system status information and based on a preset policy. When a master system and a slave system are combined or separated, automatic switch control may be performed on the system status according to a usage requirement of a user and based on the preset policy.