Dual-Processor Movement Control for Accurate Real-Time Routing
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Solution Overview
Problem
Existing automated driving technologies face challenges in achieving both high accuracy and high responsiveness in movement control, leading to compromised safety due to increased processing load and potential delays in control operations.
Innovation Solution
A movement control system comprising a real-time processing device and a non-real-time processing device, where the real-time device executes time-constrained processing for control actions like braking and steering, while the non-real-time device generates route information without response time constraints, allowing for accurate and responsive movement control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If movement control is performed with high accuracy using a single processing unit, then the accuracy of movement control is improved, but the processing load increases and responsiveness is deteriorated
Solution Approach 1:
The patent divides the processing unit into two separate processing units: a first processing unit dedicated to generating route information with high accuracy (non-real-time processing), and a second processing unit dedicated to controlling movement along the route with high responsiveness (real-time processing). This segmentation allows each unit to optimize for its specific function without being burdened by the other requirements, thereby resolving the contradiction between accuracy and responsiveness.
2Speed
If processing load is suppressed to be low and responsiveness is emphasized, then the responsiveness is improved, but the accuracy of movement control decreases
Solution Approach 1:
The patent segments the processing functions into two distinct units: the first processing unit handles computationally intensive route generation tasks without real-time constraints, while the second processing unit handles time-critical movement control tasks with strict response time requirements. This segmentation enables the system to achieve both high responsiveness in control operations and high accuracy in route planning, as each unit can be optimized for its specific performance requirements.
3Device complexity
If a single processing unit is used for both route generation and movement control, then the device complexity is reduced, but the safety is impaired due to inability to achieve both high accuracy and high responsiveness
Solution Approach 1:
The patent introduces a dual processing unit architecture where the first processing unit generates route information with high accuracy without being constrained by response time, while the second processing unit executes movement control with high responsiveness along the generated route. This segmentation, though increasing device complexity, ensures safety by enabling the system to simultaneously achieve both high accuracy in route planning and high responsiveness in control execution, which is critical for safe automated driving operations.
Data Source
AI summary
A movement control system (1) according to the present disclosure includes a first processing unit (121) and a second processing unit (220) that communicate with each other, in which the first processing unit generates route information used to control a movement route of a mobile device using sensor information acquired from the second processing unit, on the basis of non-real-time processing with no constraint of a response time required for processing, and the second processing unit controls movement of the mobile device along the route information generated by the first processing unit, on the basis of real-time processing with a constraint of the response time required for the processing.