Navigation Terminal Route Calculation Optimization
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Solution Overview
Problem
Conventional navigation systems face inefficiencies in transmitting route information and real-time traffic information, particularly for smart navigation devices that cannot reflect real-time traffic in route calculations, leading to suboptimal route guidance and unnecessary network resource consumption, and for lightweight devices that receive unnecessary route information due to unknown terminal locations and short distances.
Innovation Solution
A method where a terminal requests and receives traffic information from a server, including performance parameters and traffic events within a predetermined radius, to calculate routes efficiently, and periodically updates its location to reduce unnecessary data transmission, and adapts the format of route information based on route length, complexity, and network quality to minimize data waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a terminal requests and receives all route information from a server, then the terminal can calculate accurate routes, but unnecessary data transmission occurs when the terminal location is unknown or route distance is short
Solution Approach 1:
The patent applies local quality by transmitting route information selectively based on terminal location and route characteristics. When the terminal location is known and the route distance exceeds a threshold, detailed route information is transmitted. When the terminal location is unknown or the distance is short, only essential information is transmitted, making the data transmission quality adapt to the specific situation rather than uniformly transmitting all data.
Solution Approach 2:
The patent implements partial action by transmitting only the necessary portion of route information based on current needs. The server determines whether to transmit full route information, summarized information, or no information at all, depending on factors like terminal location availability and route distance, avoiding the waste of transmitting complete information in all cases.
2Reliability
If a server transmits real-time traffic information to all terminals, then route guidance accuracy is improved, but network bandwidth is wasted on terminals that do not need the information
Solution Approach 1:
The patent applies local quality by providing real-time traffic information selectively to terminals that need it. The server determines which terminals receive traffic information based on their location, active routes, and distance thresholds, ensuring that traffic data is transmitted only to relevant terminals rather than universally to all terminals.
Solution Approach 2:
The patent implements self-service by enabling terminals to periodically update their location information, allowing the server to automatically determine which terminals need traffic information updates. This reduces the need for the server to continuously manage and transmit data to all terminals, as terminals that have completed their trips or are not in need will not request updates.
3Productivity
If a terminal continuously updates its location to the server, then the server can optimize data transmission, but the terminal consumes additional energy and processing resources
Solution Approach 1:
The patent applies periodic action by having terminals update their location information at predetermined time intervals rather than continuously. This periodic update mechanism allows the server to optimize data transmission while reducing terminal energy consumption compared to continuous location reporting, as terminals only activate their location and communication systems at specific intervals.
Data Source
AI summary
The present invention relates to a method for calculating trip paths determined by a departure point and a target point by using traffic information in a terminal. The method includes the steps of: requesting traffic information related to a trip from a server; receiving the traffic information related to the trip from the server; and calculating the paths by using the received traffic information, wherein the received traffic information includes traffic events corresponding to information on disturbances in the traffic flow in an area or the path related to the trip, and performance parameters corresponding to information on traffic flow in a road segment within a constant radius from the departure point, and wherein the performance parameters can be received from the server in the case where there is congestion heavier than a predetermined level within a constant radius from the departure point.