Vehicle Communication Data Control for Overlap-Free Server Uploads
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Solution Overview
Problem
Conventional server devices face increased processing load due to receiving data sets with overlapping contents from communication devices, leading to inefficiencies.
Innovation Solution
A communication device installed on a moving body that records state values indicating its status, restricting re-recording until a prescribed condition is met, and transmits data only when specific conditions are fulfilled, thereby reducing the load on the server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the communication device transmits all recorded data sets to the server device, then the server device receives complete data for processing, but the processing load of the server device increases due to overlapping data sets
Solution Approach 1:
The communication device performs preliminary filtering of data sets before transmission to the server device. The recording data control unit identifies and eliminates duplicate data sets based on comparison with previously recorded data, so that only unique data sets are transmitted. This preliminary action prevents the server device from receiving overlapping data, thereby reducing its processing load while maintaining data completeness.
Solution Approach 2:
The invention extracts and removes duplicate data sets from the recorded data before transmission. The recording data control unit compares each newly recorded data set with existing recorded data sets, identifies overlaps, and extracts only the unique portions for transmission. This extraction process eliminates harmful duplicate data while preserving necessary unique information.
2Loss of information
If the communication device records all state changes continuously, then the data reflects all moving body states, but the data transmission volume and server processing load increase
Solution Approach 1:
The recording data control unit performs preliminary comparison of each newly recorded data set with previously recorded data sets before transmission. By comparing data content in advance, the system identifies and eliminates duplicate data sets, ensuring that only unique state information is transmitted. This maintains complete state information while reducing transmission volume.
Solution Approach 2:
The recording data control unit acts as an intermediary between the recording unit and the transmission unit. It compares newly recorded data with existing recorded data, filters out duplicates, and passes only unique data sets to the transmission unit. This intermediary function reduces data transmission volume while preserving all necessary state information.
Data Source
AI summary
A communication device is a communication device to be installed on a moving body, including a recording unit that records data in which a state value indicating a state of the moving body is recorded, a recording data control unit that controls recording of the recording unit, and a transmission unit that transmits the data recorded by the recording unit to a server device. The recording data control unit records, in the recording unit, first data that is the data in which the state value is changed to a particular value after the moving body is started, and restricts re-recording of the first data in the recording unit until a prescribed condition is established after the first data is recorded.