In-Vehicle Device Learning Reception Condition
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Solution Overview
Problem
The existing coordination system between in-vehicle devices and roadside devices faces challenges in reducing communication frequency without degrading the quality of connected services, leading to increased communication data and wireless line usage fees.
Innovation Solution
An in-vehicle device equipped with a communication unit and a learning unit that evaluates the usage of received data by a function control device, specifying a reception condition during a learning period to determine when to receive data from a roadside device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the communication frequency between in-vehicle device and roadside device is reduced, then communication data and wireless line usage fees are reduced, but the quality of connected services deteriorates
Solution Approach 1:
The learning unit continuously monitors whether received data is actually used by the function control device and uses this feedback to adjust the reception condition. This closed-loop feedback mechanism allows the system to reduce communication frequency when data is not needed while maintaining service quality when data is useful, thereby resolving the contradiction between reducing communication costs and maintaining service reliability
Solution Approach 2:
The in-vehicle device autonomously learns and determines its own data reception needs by evaluating whether received data is used by the function control device. This self-service approach eliminates the need for external control and enables the system to automatically optimize communication frequency based on actual usage patterns, balancing cost reduction with service quality maintenance
2Reliability
If data is repeatedly received from roadside device, then service quality is maintained, but communication frequency increases leading to higher usage fees
Solution Approach 1:
The reception condition is dynamically adjusted based on learned usage patterns. Instead of fixed frequent reception, the system adapts the reception frequency and conditions based on real-time evaluation of data usage by the function control device. This dynamic adjustment allows the system to maintain service quality when needed while reducing communication frequency to lower usage fees
Solution Approach 2:
The system changes the parameter of communication frequency based on learned conditions. By modifying the reception condition parameters (when, how much, what type of data to receive) based on actual usage patterns, the system optimizes the balance between maintaining service quality and reducing communication overhead and associated costs
Data Source
AI summary
An in-vehicle device is installed in a vehicle, and includes: a communication unit configured to receive reception target data from a roadside device that is a device located outside the vehicle; and a learning unit configured to learn a reception condition for the reception target data by evaluating an extent to which the reception target data received by the communication unit has been used by a function control device installed in the vehicle. The learning unit specifies the reception condition, during a learning period in which the communication unit repeatedly receives the reception target data. The communication unit receives the reception target data according to whether or not the reception condition is satisfied, after the reception condition has been specified by the learning unit.