Remote Control Display Management for Low-Bandwidth Graphic Updates
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Solution Overview
Problem
Existing remote control units (RCUs) for unmanned systems face challenges in providing high-speed data communication for video displays, especially over lower speed data connections like RS-422/485 links, which can lead to delays that affect mission accuracy and safety.
Innovation Solution
A display management system is implemented in the RCU with a local API that allows for the storage and management of graphic elements, reducing the data transmission required from the host computer, enabling efficient display of video and graphical data even over slower connections by locally storing graphic elements and receiving only file identifiers and placement information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If video data and graphical elements are transmitted from host computer to RCU in real-time, then display quality and responsiveness are improved, but data transmission requirements and communication bandwidth increase significantly
Solution Approach 1:
The patent extracts graphic element files from the host computer transmission stream and stores them locally in the RCU's memory. Only essential control data and updated graphical elements are transmitted over the communication link, significantly reducing data volume while maintaining display responsiveness and quality
Solution Approach 2:
Graphic element files are pre-loaded into the RCU's local memory before operation. This preliminary action allows the RCU to display graphical elements without waiting for real-time transmission from the host computer, improving display responsiveness while reducing ongoing data transmission requirements
2Speed
If high-speed data communication link is used between host computer and RCU, then real-time video display is achieved, but system complexity and cost increase
Solution Approach 1:
The patent extracts and removes the requirement for high-speed communication links by pre-loading graphic elements locally in the RCU. This reduces the data transmission burden to only essential control signals and updates, enabling real-time display functionality using simpler, lower-speed communication infrastructure
Solution Approach 2:
Graphic element files are copied from the host computer to the RCU's local memory storage. This copying action creates a local replica that eliminates the need for continuous high-speed data transmission, reducing communication system complexity while maintaining display quality
3Quantity of substance
If graphic elements are stored locally in RCU memory, then data transmission requirements are reduced, but RCU memory requirements and device complexity increase
Solution Approach 1:
The patent copies graphic element files into the RCU's local memory, creating a local repository that reduces ongoing data transmission requirements. The memory stores reusable graphical assets that can be displayed without repeated transmission from the host computer
Data Source
AI summary
A remote control display management system is disclosed. In an example, a remote control apparatus for unmanned systems includes a display screen for displaying graphic elements and a memory device storing a file for a graphic element and display parameters for displaying the graphic element. The apparatus also includes a processor and an application programming interface (“API”). The processor receives a command message from a host computer via the API. The command message includes at least one parameter value. The processor determines the command message is related to the graphic element stored in the memory device, and causes the graphic element to be displayed on the display screen by applying the at least one parameter value to the display parameters. The disclosed apparatus enables feature-rich high resolution graphics to be displayed on a remote control regardless of a connection speed with a host computer.