Backplane Serial Bus Loop for Video Wall Scalability
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Solution Overview
Problem
Current video wall control systems lack flexibility and scalability, with hardware-based controllers being expensive and inflexible, while software-based solutions depend on the underlying computer system's speed and reliability, and existing matrix switches have fixed configurations that do not adapt well to changing requirements.
Innovation Solution
A modular data processing system with a backplane device that includes serial bus communication loops to couple multiple AVD module slots, allowing for flexible configuration and expansion, with the ability to maintain communication even when slots are unoccupied, using jumpers or bypass switches to ensure continuous data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hardware-based video wall controller is used, then reliability and performance are improved, but cost increases and flexibility decreases
Solution Approach 1:
The system is divided into modular components: a backplane providing the communication infrastructure and multiple interchangeable controller modules. This segmentation allows the backplane to provide reliable hardware-based communication while individual controller modules can be selected or configured based on specific flexibility requirements, resolving the contradiction between reliability and adaptability.
Solution Approach 2:
The backplane is designed with universal communication capabilities that can support multiple types of controller modules through the serial bus communication loop. This universal interface allows the same hardware platform to accommodate both high-reliability dedicated controllers and flexible software-based controllers, enabling the system to achieve both reliability and adaptability simultaneously.
2Adaptability or versatility
If a software-based video wall controller is used, then flexibility is improved, but reliability and performance depend on the underlying computer system
Solution Approach 1:
The backplane with its dedicated serial bus communication loop acts as an intermediary between the controller software and the display units. This hardware intermediary provides a reliable, dedicated communication path that isolates the time-critical video data transmission from the variability of general-purpose computer systems, thereby improving reliability while preserving the flexibility of software-based control.
3Device complexity
If existing matrix switches with fixed configurations are used, then device complexity is reduced, but adaptability to changing requirements decreases
Solution Approach 1:
The matrix switch is designed with dynamic reconfigurability through the serial bus communication loop, allowing the switching matrix to be dynamically reconfigured based on changing requirements. The backplane provides a stable hardware foundation while the switching logic can be dynamically adjusted, combining the simplicity of fixed configurations with the adaptability of reconfigurable systems.
4Adaptability or versatility
If a modular data processing system with serial bus communication loop is implemented, then flexibility and scalability are improved, but device complexity increases
Solution Approach 1:
The modular system employs a nested architecture where standardized controller modules are inserted into slots on the backplane, which itself is nested within the overall system chassis. This nesting provides a hierarchical structure where complexity is managed at each level: simple modules at the lowest level, the backplane providing communication infrastructure at the intermediate level, and system-level integration at the highest level, thereby reducing overall system complexity while maintaining flexibility.
Data Source
AI summary
Systems, devices, and methods according to the present disclosure can include a backplane device for exchanging audio information, video information, or other data among multiple audio, video, and/or data (AVD) processing or storage hardware modules. The backplane device includes a group of AVD module slots, and each of the module slots can receive an AVD processing hardware module, an AVD storage hardware module, or other signal processing hardware module. The backplane device includes a serial bus communication loop to couple each of the AVD module slots. The serial bus communication loop is maintained even when an AVD module slot of the backplane device is unoccupied by a hardware module. In an example, multiple backplane devices according to the present disclosure can be daisy-chained together, and packetized information can be exchanged among modules in any of the multiple backplane devices using the communication loop.