Vehicle Traffic Data Transmission With On-Demand Secondary Data
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Solution Overview
Problem
Existing systems face challenges in efficiently sharing traffic data regarding abnormal states like traffic jams or obstacles without overwhelming communication and data processing loads.
Innovation Solution
A data transmitting apparatus mounted on vehicles determines abnormal states and transmits primary data, with a server accumulating and requesting secondary data when needed, distributing traffic data to surrounding vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If all vehicles transmit detailed secondary data about abnormal states simultaneously, then data accuracy and completeness improve, but communication load and processing time increase significantly
Solution Approach 1:
The system performs preliminary classification of data into primary (essential) and secondary (detailed) categories before transmission. When an abnormal state is detected, only primary data is transmitted immediately, while secondary data is prepared in advance but transmitted only when requested by the server, thus avoiding simultaneous transmission of all data.
Solution Approach 2:
The data transmission process is segmented into two phases: immediate transmission of primary data for quick abnormal state identification, and subsequent transmission of secondary data upon server request. This segmentation allows the system to balance between speed and completeness.
2Loss of information
If all vehicles transmit large volumes of secondary data simultaneously, then data completeness improves, but communication load increases overwhelming the system
Solution Approach 1:
The server acts as an intermediary that receives primary data first, evaluates the abnormal state, and then selectively requests secondary data from specific vehicles. This intermediary approach prevents overwhelming communication load by controlling data flow based on actual needs.
Solution Approach 2:
Instead of requiring all vehicles to transmit all secondary data, the system uses partial action by requesting secondary data only from vehicles that have transmitted primary data indicating abnormal states, and only for the specific parameters needed to confirm and analyze the abnormal condition.
3Reliability
If the system collects and processes all secondary data from all vehicles, then abnormal state determination accuracy improves, but processing complexity and resource requirements increase
Solution Approach 1:
The server applies local quality by processing data differently based on its type and source. Primary data receives immediate processing for quick detection, while secondary data is processed selectively based on the specific abnormal state identified. Not all data undergoes the same level of processing complexity.
Solution Approach 2:
The system performs preliminary filtering and classification of data before detailed processing. Primary data is processed immediately for rapid abnormal state detection, while secondary data is held in readiness and processed only when needed, reducing overall processing complexity while maintaining accuracy.
Data Source
AI summary
A data transmitting apparatus to be mounted on a vehicle includes a communicator, an abnormal state determiner, a primary data outputting unit, and a secondary data outputting unit. The communicator is configured to communicate with a server. The abnormal state determiner is configured to determine that an abnormal state has occurred whose data is to be transmitted. The primary data outputting unit is configured to perform transmission of predetermined primary data to the server through the communicator when the abnormal state determiner determines that the abnormal state has occurred. The secondary data outputting unit is configured to perform transmission of secondary data having a data volume greater than a data volume of the primary data to the server through the communicator upon receipt of a data request transmitted by the server in response to the transmission of the primary data.