All-in-One Touch Frame Switching for Instant Cross-Channel Response
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Solution Overview
Problem
The existing all-in-one machines experience delays in touch manipulation due to the time required for USB identification when switching between internal and external devices, making immediate touch operations inconvenient.
Innovation Solution
The all-in-one machine employs two data output ports to provide continuous touch data paths, one to the external device or internal PC module and one to the main board, allowing the main board to selectively respond to touch data based on the current channel, thereby avoiding the need for USB identification and enabling immediate touch operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the all-in-one machine uses a fixed channel connection for touch signal transmission, then the system structure is simple, but the touch response speed is slow when switching between internal PC module and external devices
Solution Approach 1:
The system pre-estimates which channel is more likely to be used based on historical data and current context, and proactively switches to that channel before the touch operation occurs. This preliminary action eliminates the need for slow detection and switching during actual touch operations, thereby improving touch response speed without requiring a complex real-time switching mechanism.
Solution Approach 2:
The system maintains duplicate touch signal transmission paths for both internal PC module and external devices. By having pre-established communication channels for both devices, the system can immediately activate the appropriate channel without detection delays, improving response speed while keeping the switching logic relatively simple.
2Speed
If the all-in-one machine detects channel status in real-time before each touch operation, then the touch response speed improves, but the system complexity and detection overhead increase
Solution Approach 1:
Instead of detecting channel status at the moment of touch operation, the system performs channel status estimation in advance based on historical usage patterns and current system state. This preliminary estimation eliminates the need for complex real-time detection mechanisms while maintaining fast touch response.
Solution Approach 2:
The channel detection mechanism uses its own historical detection results and system state information to estimate current channel status, rather than requiring external or complex detection systems. This self-service approach reduces detection overhead and system complexity while maintaining accurate channel status awareness.
3Reliability
If the all-in-one machine establishes separate communication channels for internal PC module and external devices, then the reliability of touch signal transmission improves, but the device complexity increases
Solution Approach 1:
The USB selecting switch serves multiple functions: it acts as a channel switching device, a signal routing component, and a configuration management interface. By making this single component multi-functional, the system achieves reliable separate communication channels for internal PC module and external devices without proportionally increasing overall device complexity.
Solution Approach 2:
The USB selecting switch acts as an intermediary component that manages the complexity of dual channel operations. It provides a centralized control point for channel switching and signal routing, simplifying the management of multiple communication channels while maintaining transmission reliability for both internal PC module and external devices.
Data Source
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Figure 3~4
AI summary
The invention concerns a method for an all-in-one machine to realize quick touch in all channels, wherein the all-in-one machine comprises a touch frame having a first data port and a second data port, a USB selecting switch, an internal PC module, a main board and a display screen, the method further comprises steps of detecting, controlling, and determining whether there is an action to call a touch menu; and if it is determined that there is an action to call a touch menu when detecting that the channel connected to the main board is the internal PC module channel or the external device channel, the method further comprises steps of activating the main board to start a setup menu and of making response to touch data within an area of the touch menu transmitted from the touch frame through the second data port.