Dynamic Sensor Area Adjustment for Navigation Processing Load
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Solution Overview
Problem
Navigation devices face increased processing load due to complex arithmetic processing from multiple sensors, leading to delays in providing quick reactions for driving guidance, such as turns at intersections, and reducing the processing area to alleviate this load may result in insufficient information for driving support.
Innovation Solution
A sensor control system that includes a sensor controller connected to multiple sensor units, a traveling state grasping unit, and a processing unit that adjusts the processing area based on the vehicle's traveling state to optimize information acquisition for driving support, allowing for efficient processing and guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple sensors are used to detect information around the vehicle, then the information acquisition capability is improved, but the processing load increases causing delays in driving guidance
Solution Approach 1:
The sensor detection area is divided into multiple regions (first detection area and second detection area), with different processing priorities. The first detection area corresponds to regions requiring immediate attention for driving safety, while the second detection area covers broader surroundings with lower processing priority, allowing the system to focus computational resources on critical areas
Solution Approach 2:
Different processing strategies are applied to different regions of the detection area. High-priority regions receive full processing attention for immediate driving guidance, while low-priority regions use reduced processing to conserve computational resources, ensuring critical information is processed without delay
2Productivity
If the processing area is reduced to lower computational throughput, then the processing load decreases, but the information necessary for driving support may not be obtained
Solution Approach 1:
The processing area is dynamically adjusted based on the vehicle's traveling state. When the vehicle is approaching an intersection or navigating a complex road layout, the system expands the first detection area to cover relevant regions, ensuring necessary information is captured. During normal straight-line driving, the processing area is reduced to maintain high processing throughput
Solution Approach 2:
The system changes the parameter of processing area size based on traveling state conditions. By monitoring vehicle speed, position, and road geometry, the system adjusts the spatial extent of the detection area to match the actual information needs for driving support, preventing both information loss and unnecessary processing
Data Source
AI summary
Conventional navigation devices are equipped with technology that supports the driving of a driver by detecting the surroundings of a vehicle using a plurality of sensors such as cameras. However, because complex arithmetic processing is carried out using the detection results from the plurality of sensors, the processing load increases and other processes requiring a rapid response can be delayed. As a result, consideration has been given to decreasing the amount of arithmetic processing and reducing the processing load by uniformly decreasing the processing area for information detected by the sensors. However, if the processing area is uniformly decreased, information necessary for driving support may not be obtained. Provided is a sensor control technology that better obtains information necessary for driving support: a sensor controller, characterized by carrying out predetermined processing by changing the processing area of the information acquired by the sensors according to the vehicle driving conditions.