Display Module LAN Cable IR UART Signal Routing
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Solution Overview
Problem
Conventional display apparatuses require multiple cables to transmit signals for controlling multiple display modules, leading to increased costs and installation time.
Innovation Solution
A display apparatus and method that uses a local area network (LAN) cable to transmit infrared (IR) and universal asynchronous receiver/transmitter (UART) signals between display modules, eliminating the need for multiple cables by utilizing IR signals for field control and UART/Ethernet signals for remote control, allowing for integrated control of multiple modules through a single cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple cables are used to transmit control signals between display modules, then signal transmission reliability is improved, but device complexity and installation time increase
Solution Approach 1:
The patent combines multiple control signal transmission functions (IR signals and UART/Ethernet signals) into a single LAN cable connection. The display modules share a common communication bus, allowing both field control and remote control signals to be transmitted through the same cable infrastructure, thereby reducing cable complexity while maintaining transmission reliability
Solution Approach 2:
The LAN cable is designed to serve multiple functions: it simultaneously transmits power, IR control signals, and UART/Ethernet communication signals between display modules. This multi-functional cable replaces what would traditionally require separate cables for each signal type, reducing overall system complexity
2Adaptability or versatility
If multiple cables are used for controlling multiple display modules, then control functionality is improved, but installation time increases
Solution Approach 1:
Multiple control functionalities (field control via IR and remote control via UART/Ethernet) are merged into a single cable system. The display modules can be controlled through one LAN cable connection, eliminating the need to install and manage multiple separate cable connections for different control functions
Solution Approach 2:
The system performs preliminary configuration by automatically assigning addresses to display modules when they are first connected through the LAN cable. This preliminary address assignment and module identification process eliminates the need for manual cable configuration during installation, reducing installation time
3Reliability
If multiple cables are used to connect display modules, then signal transmission capability is improved, but product cost increases
Solution Approach 1:
The patent merges the functions of multiple cables into a single LAN cable that simultaneously handles power transmission, IR signal transmission, and UART/Ethernet communication. This consolidation reduces the quantity of cables required from multiple separate cables to just one, thereby reducing product cost while maintaining comprehensive signal transmission capability
Solution Approach 2:
The LAN cable is designed as a universal connection that performs multiple functions: power supply, control signal transmission, and data communication. This multi-functional approach eliminates the need for separate cables for each function, reducing the total quantity of cables and associated costs
Data Source
AI summary
A display apparatus is disclosed. The display apparatus comprises: a first display module having an infrared (IR) signal receiver and a first wired port and second wired port configured to be connected to local area network (LAN) cables; and a second display module having a third wired port and fourth wired port configured to be connected to LAN cables, wherein the first display module is configured to: transmit a received IR signal to the second display module via a first LAN cable connected to the second wired port and third wired port, based on the IR signal received via the IR signal reception unit being a signal for controlling the second display module, and transmit a received control signal to the second display module via a second LAN cable, based on the control signal being received, via the second LAN cable, from an external device connected via the first wired port, and the second display module is configured to transmit an IR signal or a control signal to a neighboring third display module via a third LAN cable connected to the fourth wired port, based on the IR signal or the control signal being received via the first LAN cable.