Sensor Delay Classification for Accurate Driving Support Analysis
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Solution Overview
Problem
In driving support systems, sensor information from on-vehicle and roadside devices is delayed due to sensor response, processing, and communication times, leading to incorrect analysis when combined, and existing technologies fail to accurately classify and analyze this information based on delay times, especially with varying communication line speeds.
Innovation Solution
A system with a reception unit, processing units, and a control unit that receives and processes sensor information based on delay times, allowing for appropriate classification and analysis, including moving object, estimation, and statistical processing units to handle sensor information with different delay times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If sensor information from multiple devices is collected and processed together, then the quantity and variety of information increases, but analysis accuracy decreases due to timing delays
Solution Approach 1:
The patent segments sensor information into multiple queues based on delay characteristics (first queue for small delay, second queue for large delay). This segmentation allows differential processing of information packets, ensuring that timing-sensitive data is handled appropriately, thus maintaining analysis accuracy while still collecting diverse sensor information from multiple sources.
Solution Approach 2:
The patent performs preliminary classification of sensor information into different queues based on delay characteristics before processing. By pre-sorting information packets according to their timing requirements, the system prepares the data in an optimal state for subsequent analysis, preventing timing-related errors in the analysis process.
2Device complexity
If all sensor information is processed uniformly, then processing simplicity is maintained, but analysis reliability decreases due to mixed timing characteristics
Solution Approach 1:
The patent divides the processing system into multiple processing units corresponding to different queues. Each processing unit handles information with specific timing characteristics, ensuring that uniform processing within each queue maintains simplicity while the overall segmented architecture ensures reliability through appropriate differential handling of timing-sensitive data.
Solution Approach 2:
The patent applies different processing qualities to different information packets based on their delay characteristics. Information in the first queue receives processing optimized for real-time requirements, while information in the second queue receives processing suited for less time-critical data. This local differentiation of processing quality maintains reliability without unnecessarily complicating the entire system.
3Speed
If communication line speed increases, then information transmission capacity improves, but delay variation between different communication paths increases
Solution Approach 1:
The patent performs preliminary measurement of communication delay for each information packet before processing. By measuring and recording the actual delay experienced by each packet, the system can compensate for timing variations caused by different communication line speeds, ensuring accurate temporal analysis despite varying transmission conditions.
Solution Approach 2:
The patent uses feedback from delay measurements to adjust processing timing. By continuously monitoring communication delays and using this information to synchronize processing operations, the system compensates for delay variations caused by different communication line speeds, maintaining temporal accuracy in the analysis.
Data Source
AI summary
A system including: one or a plurality of sensors correspondingly connected to each of a plurality of devices; a reception unit configured to receive sensor information corresponding to a detection signal of each of the one or plurality of sensors, the sensor information being transmitted from the plurality of devices; a plurality of processing units configured to process the sensor information received by the reception unit; and a control unit configured to input the sensor information received by the reception unit, to any of the plurality of processing units, on the basis of information about delay in communication of the sensor information.