Vehicle Sensor Data Prioritization for Bandwidth-Aware Transmission
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Solution Overview
Problem
Existing self-driving vehicle systems cannot determine the priority of sensor information, such as video data from on-board cameras, based on the importance of the sensors, leading to inefficient transmission of data, especially when multiple objects are detected or when remotely monitoring a vehicle.
Innovation Solution
A communication apparatus and method that includes a communication unit, a moving state recognition unit, and a peripheral state recognition unit to determine the priority of each sensor based on the moving and peripheral states of the vehicle, ensuring higher quality transmission of sensor information from high-priority sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sensor information from all sensors is transmitted with equal quality, then complete monitoring data is provided, but bandwidth is wasted and transmission efficiency decreases
Solution Approach 1:
The patent applies local quality by assigning different transmission qualities to different sensor information based on their priority levels. High-priority sensors (those detecting important objects or in critical directions) transmit information with higher quality, while low-priority sensors transmit with lower quality. This resolves the contradiction by optimizing bandwidth usage while maintaining essential information completeness.
Solution Approach 2:
The patent changes the transmission quality parameter dynamically based on sensor priority, which is determined by the moving state and peripheral state of the mobile body. This allows the system to adapt transmission parameters to current operational conditions, improving efficiency without losing critical information.
2Measurement precision
If high quality transmission is provided for all sensor information, then data accuracy is maintained, but bandwidth consumption increases and congestion occurs
Solution Approach 1:
The patent implements local quality by providing high transmission quality only to high-priority sensor information while using lower quality for low-priority information. This selective approach maintains measurement precision for critical data while significantly reducing overall bandwidth consumption and preventing network congestion.
Solution Approach 2:
The patent applies partial action by transmitting high-quality information only when necessary (for high-priority sensors) rather than for all sensors. This partial application of high-quality transmission maintains essential precision while avoiding excessive bandwidth consumption.
3Ease of operation
If sensor priority is not determined, then all sensor data is treated equally, but transmission resource allocation becomes inefficient
Solution Approach 1:
The patent applies preliminary action by determining sensor priority levels in advance based on the moving state and peripheral state before actual transmission occurs. This pre-establishment of priority rules simplifies the transmission operation while enabling efficient resource allocation, as the system automatically knows which sensors require higher priority transmission.
Solution Approach 2:
The system performs self-service by automatically determining sensor priorities and allocating transmission resources without external intervention. The communication control unit autonomously evaluates the moving state and peripheral state to establish priority levels, maintaining operational simplicity while achieving high communication efficiency.
Data Source
AI summary
A communication apparatus (10) includes: a communication unit (11) configured to transmit sensor information detected using at least two or more sensors, the two or more sensors being adapted to detect states of a mobile body in directions different from one another with the mobile body being a base point; a moving state recognition unit (12) configured to recognize a moving state; a peripheral state recognition unit (13) configured to recognize a peripheral state of the mobile body; and a communication control unit (14) configured to determine a priority level of each of the two or more sensors based on the moving state and the peripheral state and perform communication control so that the sensor information detected by the sensor having a high priority level is transmittable in quality higher than that of the sensor information detected by the sensor having a low priority level.