Display KVM Port Switching With Automatic Device Pairing
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Solution Overview
Problem
Traditional KVM settings in monitors require manual configuration of image input sources to USB ports, which is inconvenient and time-consuming.
Innovation Solution
A display device with a button and microcontroller that automatically switches data and image transmission ports based on a pairing table updated by applications on connected electronic devices, allowing seamless switching between input sources without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual configuration of image input sources to USB ports is used, then the setup process becomes time-consuming and inconvenient, but the device complexity remains low
Solution Approach 1:
The system automatically binds USB data transmission ports with image transmission ports through applications running on connected electronic devices. The microcontroller receives port information from these applications and performs automatic binding without user intervention, making the system serve itself rather than requiring manual configuration.
Solution Approach 2:
The binding relationship between data transmission ports and image transmission ports is established in advance through automatic binding before actual use. This preliminary automatic configuration eliminates the need for manual setup during operation, improving ease of use while maintaining manageable system complexity.
2Productivity
If automatic port switching is implemented, then switching between input sources becomes seamless, but the device complexity increases due to microcontroller and pairing table requirements
Solution Approach 1:
The microcontroller serves multiple functions: it controls port switching, manages the pairing table, and coordinates with applications on electronic devices. This multi-functionality enables seamless switching while consolidating control logic into a single component, managing overall system complexity.
Solution Approach 2:
The pairing table acts as an intermediary data structure that stores the binding relationships between ports. This mediator allows the microcontroller to efficiently manage port switching by referencing pre-established bindings, improving switching efficiency while keeping the control mechanism organized and manageable.
3Extent of automation
If port binding information is stored in applications on electronic devices, then automatic switching is enabled, but information loss may occur if applications are not properly configured
Solution Approach 1:
The system implements feedback mechanisms where applications on electronic devices send port information to the microcontroller, which then confirms and maintains the binding relationships. This feedback loop ensures that port binding information is accurately transmitted and stored, preventing information loss while enabling high-level automation.
Data Source
AI summary
A display device includes a button, a first data transmission port, a second data transmission port, a first image transmission port, a second image transmission port, and a microcontroller. The first data transmission port is coupled to a first electronic device. The second data transmission port is coupled to a second electronic device. The first image transmission port is coupled to the first electronic device. The second image transmission port is coupled to the second electronic device. The microcontroller selects the first image transmission port, the second image transmission port, or both to generate a video signal. When the button is pressed, if the microcontroller selects the first image transmission port, the microcontroller switches the first data transmission port to the second data transmission port, and receives image-transmission-port information stored in the second electronic device through the second data transmission port.