Traffic Information Provisioning via Scheduled Data Pre-reception
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Solution Overview
Problem
Conventional DMB receiving terminals must wait for a significant period before receiving real-time traffic information, as they need to receive all TPEG data for a specified period, leading to initial waiting time for users.
Innovation Solution
A method and apparatus that register a schedule with request details for traffic information, allowing for the reception of real-time traffic data in advance of the specified time, with the controller setting a reception start time based on the expected departure time and travel duration, and suspending data reception until the reset start time, using TPEG protocol data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the DMB receiving terminal waits to receive all TPEG data for a complete period before providing traffic information, then the traffic information is based on complete data for the period, but the initial waiting time for users increases
Solution Approach 1:
The system performs preliminary actions by receiving and storing TPEG data in advance before the scheduled provision time. The receiver continuously receives TPEG data and stores it in the storage unit, so that when the scheduled time arrives, the data is already available for immediate processing and provision, eliminating the need to wait for a complete period
Solution Approach 2:
The system segments the data reception process from the data provision process. Instead of waiting for complete period data before starting to provide information, the system divides data collection into continuous background reception and on-demand provision, allowing users to access available data immediately while complete period data continues to be collected
2Loss of time
If the system receives real-time traffic data in advance and stores it, then the initial waiting time is reduced, but the device must maintain standby state and consume energy
Solution Approach 1:
The system uses periodic action by scheduling data reception and provision at specific intervals and times. The controller receives scheduled requests and provisions data at predetermined times, allowing the receiver to operate periodically rather than continuously in standby mode, reducing energy consumption while maintaining service availability
Solution Approach 2:
The system performs preliminary data reception and storage before scheduled provision times. By continuously receiving and storing TPEG data in advance, the system prepares data beforehand so that when scheduled requests occur, data can be immediately provisioned without requiring continuous standby operation
3Measurement precision
If the DMB receiving terminal processes all received TPEG data before providing traffic information, then the accuracy of traffic information is improved, but the time required to provide information increases
Solution Approach 1:
The system segments the data processing into two phases: continuous background data collection and on-demand data provision. TPEG data is received and stored continuously in the background, and when a scheduled request occurs, the controller processes only the relevant stored data for immediate provision, rather than waiting to process all possible data before providing any information
Solution Approach 2:
The system performs preliminary data reception and storage actions continuously in the background. By the time a scheduled request arrives, the relevant TPEG data has already been received and stored, so the controller can immediately process and provision accurate traffic information without delay
Data Source
AI summary
A method for providing traffic information includes registering a schedule containing the request details of a request for traffic information, receiving real-time traffic data for a time duration in advance of a traffic information provision time, and creating traffic information using the real-time traffic data at the traffic information provision time, and providing the traffic information. A related apparatus is also provided. The traffic information providing method and apparatus reduces an initial waiting duration for the provision of real-time traffic information.