Vehicle Data Collection Device with In-Vehicle Aggregation
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Solution Overview
Problem
Conventional data collection devices face challenges in managing communication load and processing burden due to the transmission of actual data and index data from in-vehicle devices, leading to increased data volume and excessive processing load on external devices.
Innovation Solution
A data collection device mounted on a vehicle aggregates data into specified formats based on external device needs, reducing communication load and processing burden by generating aggregation results on the vehicle side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If actual data and index data are transmitted from in-vehicle device to data collection device, then information completeness is improved, but communication load increases
Solution Approach 1:
The patent extracts and transmits only the necessary aggregation results (useful information) from the in-vehicle device to the data collection device, while leaving out unnecessary actual data and index data. This selective extraction reduces communication load while maintaining information completeness for the specific application needs.
Solution Approach 2:
Instead of the conventional approach where the data collection device requests and receives all raw data then processes it externally, the patent inverts the processing location to occur in-vehicle. The in-vehicle device performs aggregation processing locally and sends only the processed results, reversing who does the processing and what is transmitted.
2Loss of information
If actual data is transmitted to external device for processing, then data utility is improved, but processing burden on external device increases
Solution Approach 1:
The patent applies preliminary action by performing the aggregation processing in advance at the in-vehicle device before data transmission. The data is pre-processed into useful aggregation results (such as maximum values, minimum values, averages, or count of occurrences) within the vehicle, so that when data is transmitted to the external device, it is already in the desired format and ready for immediate use without requiring additional processing at the external device.
3Loss of information
If all collected data is transmitted to external device, then data availability is improved, but communication efficiency deteriorates
Solution Approach 1:
The patent extracts only the essential aggregation results from the collected data and transmits them to the external device. By taking out only what is necessary (aggregation results such as max, min, average, count) and leaving out redundant raw data, the system maintains data availability for the specific application while dramatically improving communication efficiency through reduced data transmission volume.
Data Source
AI summary
A data collection device of the present disclosure is mounted on a vehicle and collects data on a state of the vehicle. The device acquires an aggregation format of the data from an external device and aggregates the data collected from the vehicle to generate an aggregation result in the aggregation format specified by the external device. The device sends the aggregation result to the external device. The device enables useful information to be provided from the vehicle to the external device according to needs of the external device while reducing a communication load and a processing burden of the external device.