Video Matrix Controller Wiring Simplification
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Solution Overview
Problem
Conventional video matrix control devices have complex wiring and large size, limiting their scalability and ability to support cross-screen picture-in-picture (PIP) displays due to one-to-one connections, which increases component and wiring costs and complexity.
Innovation Solution
A video matrix control apparatus with a matrix switch module and multiple receiving and transmission modules, utilizing field-programmable gate arrays (FPGAs) and a crosspoint switch, reduces the number of link pairs between transceiver elements and the matrix switch module, allowing for simplified wiring and supporting cross-screen PIP displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If one-to-one connection is used between transmitting end and receiving end, then image transmission reliability is improved, but device complexity and wiring complexity increase
Solution Approach 1:
Multiple receiving ends are merged into a single receiving module that shares common transceiver elements and signal processing resources. The matrix switch module consolidates multiple connection paths into one unified switching fabric, reducing wiring complexity while maintaining reliable image transmission to all display devices
Solution Approach 2:
The receiving module is designed as a universal interface that can handle multiple image signals through shared transceiver elements. The matrix switch module provides multi-functional connectivity, allowing any transmitting end to connect to any receiving end through a standardized switching mechanism, reducing the need for dedicated one-to-one wiring
2Reliability
If one-to-one connection is used between transmitting end and receiving end, then signal transmission quality is improved, but the size of control device increases
Solution Approach 1:
Multiple receiving ends share common transceiver elements and signal processing circuits within a single receiving module, reducing the total component count and control device size. The matrix switch module consolidates switching functions into a compact centralized unit
Solution Approach 2:
The control device is segmented into modular components (transmitting modules, receiving modules, matrix switch module) that can be independently designed and optimized. This modular architecture reduces overall device size while maintaining signal transmission quality through dedicated signal paths within each module
3Area of stationary object
If multiple display devices are connected to multiple receiving modules, then display coverage is improved, but the number of components and wiring increases
Solution Approach 1:
Each receiving module is designed as a universal interface that can serve multiple display devices through the matrix switch module. The shared transceiver elements and signal processing resources in receiving modules reduce the total number of components needed while maintaining comprehensive display coverage across the video wall
Solution Approach 2:
The matrix switch module acts as an intermediary between transmitting modules and receiving modules, enabling multiple display devices to be connected through a standardized switching fabric rather than requiring direct connections to each transmitting end. This intermediary structure reduces the number of components while expanding display coverage
4Reliability
If one-to-one wiring is used, then connection reliability is improved, but adaptability to extended applications decreases
Solution Approach 1:
The matrix switch module provides a universal switching fabric that supports multiple application modes including standard video wall display, cross-screen picture-in-picture (PIP), and other extended applications. The standardized interfaces and configurable switching paths maintain connection reliability while enabling diverse application adaptability
Solution Approach 2:
The matrix switch module enables dynamic reconfiguration of connection paths between transmitting and receiving modules. Connection topologies can be changed in real-time to support different application requirements (e.g., switching between full-screen mode and PIP mode) while maintaining reliable connections, providing both connection reliability and application adaptability
Data Source
AI summary
A video matrix controller, including a receiving module, a matrix switch module and a transmission module. The matrix switch module is coupled between the receiving module and the transmission module. The receiving module includes a first port interface and a first transceiver. The first port interface receives image data and converts it to a signal, and transmits it to the first transceiver. The transmission module includes a second transceiver and a second port interface. The signal is transmitted from the first transceiver to the matrix switch module. The second transceiver receives the signal, and the second port interface converts the signal to image data and transmits it to a corresponding external display device.