Drive Recorder Data Quality Control for Communication Cost
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Solution Overview
Problem
Existing drive recorders face challenges in balancing communication cost reduction with effective utilization of data representing driving conditions, as the fixed quality of transmitted data hinders optimal use and cost efficiency.
Innovation Solution
A drive recorder with an acquisition, recording, and communication unit that dynamically controls data quality based on external information, allowing high-quality data transmission for important events and low-quality data for less critical ones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the quality of transmitted driving condition data is fixed to low quality, then communication cost is reduced and transmission reliability is improved, but the effectiveness of important data is compromised
Solution Approach 1:
The patent applies dynamics by making the data quality parameter adjustable rather than fixed. The control unit dynamically changes the quality of transmitted driving condition data based on received commands from the external device, allowing the system to adapt between high quality (for important data) and low quality (for non-important data) transmission modes, thus resolving the contradiction between communication cost and data effectiveness
Solution Approach 2:
The patent implements parameter changes by modifying the quality parameter of transmitted data according to external commands. The control unit receives commands that indicate whether high or low quality transmission is desired, and accordingly adjusts the data quality parameter before transmission, enabling flexible optimization of both communication cost and data effectiveness based on actual needs
2Productivity
If the quality of transmitted data is reduced to lower communication cost, then transmission efficiency is improved, but the ability to effectively utilize important driving condition data deteriorates
Solution Approach 1:
The system dynamically adjusts data quality based on received commands, allowing transmission efficiency to be optimized without permanently sacrificing data effectiveness. When high quality transmission is commanded, the system prioritizes data effectiveness; when low quality is commanded, it prioritizes transmission efficiency, thus resolving the contradiction
Data Source
AI summary
A drive recorder to be mounted on a vehicle includes an acquisition unit, a recording unit, a communication unit, and a control unit. The acquisition unit acquires data representing driving condition. The recording unit records the acquired data. The communication unit transmits the acquired data to the outside. The control unit controls the quality of the data to be transmitted based on the information received from the outside.