Vehicle Display Signal Processing for Multi-Display Data Exchange
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle display apparatuses face inefficiencies in data exchange between multiple signal processing devices due to low data transmission efficiency and inadequate resource management, particularly as the number of displays increases.
Innovation Solution
A vehicle display apparatus that determines whether a second signal processing device is a master or slave device based on processor numbers, non-uniform memory access, and other criteria, using appropriate data communication schemes such as Ethernet, high-speed PCI, or interface communication to optimize data exchange and resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If functional modules are connected to the host device via communication lines and individually executed, then device complexity is reduced, but data transmission efficiency deteriorates
Solution Approach 1:
The system divides signal processing devices into master and slave segments based on processor count and NUMA support. Slave devices with multiple processors and NUMA capability are designated as master devices to handle data exchange, while other devices remain as slaves. This segmentation enables efficient data transmission through dedicated master devices while maintaining the overall system structure.
2Adaptability or versatility
If multiple signal processing devices are used for multiple displays, then adaptability is improved, but resource management complexity deteriorates
Solution Approach 1:
Signal processing devices automatically determine their master or slave role based on their own hardware characteristics (processor count and NUMA support). Each device evaluates its own capabilities and autonomously decides whether to become a master device, eliminating the need for external resource management intervention and simplifying multi-device resource allocation.
Solution Approach 2:
The system uses hardware parameters (number of processors and NUMA support) as decision criteria for role assignment. By changing the role parameter from static to dynamic based on hardware capabilities, the system achieves flexible resource management that adapts to different device configurations without increasing management complexity.
3Ease of operation
If data exchange is performed through interface communication without master-slave determination, then ease of operation is improved, but data transmission efficiency deteriorates
Solution Approach 1:
The system performs preliminary determination of master and slave devices based on hardware characteristics before data exchange begins. This preliminary role assignment ensures that subsequent data transmission operations can proceed efficiently through the designated master device without requiring complex real-time decision-making, maintaining operational simplicity while improving transmission efficiency.
Data Source
AI summary
The present disclosure relates to a vehicle display apparatus. The vehicle display apparatus according to an embodiment of the present disclosure comprises: a first display and a second display mounted in a vehicle; a signal processing device configured to perform signal processing for at least one of the first display or the second display; and a second signal processing device configured to perform signal processing, wherein the signal processing device is configured to determine whether the second signal processing device is a master device or a slave device, based on number information of processors in the second signal processing device and information on support of non-uniform memory access. Accordingly, data exchange between the plurality of signal processing devices may be performed efficiently.