ECU Test Data Stream Layout for Crash-Resistant Visualization
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Solution Overview
Problem
Existing methods for testing control software of control units, particularly in hardware-in-the-loop applications, face challenges in efficiently managing and displaying large numbers of time-varying data streams, leading to operating system crashes and resource inefficiencies.
Innovation Solution
A method utilizing first and second tree structures to efficiently manage and display data streams in a tabular arrangement, allowing flexible and resource-saving access by dynamically linking and unlinking elements to data streams, enabling efficient and clear representation of data streams without allocating memory to empty cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large number of data streams are displayed simultaneously in graphical representations, then the completeness of data visualization is improved, but the computational resources are overwhelmed leading to operating system crashes
Solution Approach 1:
The patent segments the display of data streams by organizing them in a table-like arrangement with multiple rows and columns, where each cell can contain a graphical representation. This segmentation allows the system to display numerous data streams without overwhelming a single display area, distributing the visual information across a structured grid that the operating system can manage more efficiently.
Solution Approach 2:
The patent transitions from traditional single-column or limited graphical displays to a two-dimensional table-like arrangement with rows and columns. This dimensional change enables the system to organize and display a much larger number of data streams simultaneously by utilizing both horizontal and vertical space, effectively increasing the display capacity without proportionally increasing computational overhead.
2Ease of manufacture
If traditional display methods are used to show multiple data streams, then implementation simplicity is maintained, but resource efficiency deteriorates due to computational intensity
Solution Approach 1:
The table-like arrangement structure serves multiple functions simultaneously: it organizes data streams in a readable format, enables efficient memory allocation by only creating display elements for populated cells, allows for flexible addition or removal of data streams, and provides a scalable framework that can adapt to different numbers of rows and columns. This multi-functionality reduces the need for separate management systems for each display aspect.
Solution Approach 2:
The patent implements a dynamic display system where the number of rows and columns in the table-like arrangement can be adjusted, and data streams can be added or removed from specific cells. This dynamic structure allows the system to adapt to varying data requirements in real-time, allocating computational resources only where needed rather than maintaining fixed, resource-intensive display structures.
3Ease of operation
If memory is allocated for all possible display cells in advance, then display readiness is improved, but memory efficiency deteriorates due to empty cell allocation
Solution Approach 1:
The patent prepares the display structure by establishing the table-like arrangement with defined rows and columns in advance, creating the framework for efficient data stream organization. However, rather than pre-allocating memory for all possible cells, the system only allocates memory for cells that will actually contain data stream representations, combining the benefits of pre-structured organization with on-demand memory allocation.
Solution Approach 2:
The system dynamically manages memory allocation by allocating memory only when a data stream is assigned to a specific cell in the table-like arrangement, and releasing memory when data streams are removed or when rows and columns are adjusted. This approach ensures that memory resources are continuously optimized to match the actual display requirements rather than being tied up in static pre-allocation.
Data Source
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AI summary
The invention relates to a method for testing the control software of an electronic control unit (ECU), wherein the ECU provides data streams (12) for evaluation, comprising the steps of: - generating a first and second tree structure for displaying the data streams (12) in a display area in a table-like arrangement (10), having a plurality of rows (14) and a plurality of columns (16), wherein -- the first tree structure comprises a first multidimensional list, -- the first multidimensional list comprises a plurality of row element lists, -- the row element lists comprise a plurality of elements (20), -- each element (20) in the row element list can be linked to a data stream (12), -- the element (20) defines in which column (16) the data stream (12) with which the element (20) can be linked is displayed, wherein -- the second tree structure comprises a second multidimensional list,-- the second multidimensional list comprises a plurality of column element lists, -- the column element lists comprise the plurality of elements (20), -- the element (20) defines in which row (14) the data stream (12) is represented with which the element (20) can be linked, and - representing the data streams (12) based on the first and second tree structure.