Transportation Mode Detection Using Routes, Speed, And Bus Stops
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Solution Overview
Problem
Existing technologies struggle to accurately distinguish between transportation methods, such as using a bus versus a private vehicle, based on sensor data and moving trajectories due to variations in vehicle type and boarding positions.
Innovation Solution
A system and method that utilizes a moving method determination system comprising a computer and mobile terminal, which processes positional information, determines moving trajectories, and applies speed and distance conditions to differentiate between transportation services and other methods using bus stop and service information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If vibration characteristics and sensor data are used to determine moving methods, then estimation of transportation methods can be achieved, but it becomes difficult to distinguish between bus and other vehicles due to variations in vehicle type, size, and boarding position
Solution Approach 1:
The determination process is segmented into multiple independent conditions: first determining whether the terminal is moving along a transportation service route, then separately evaluating speed conditions and distance conditions from bus stops. This segmentation allows each condition to be evaluated independently and combined logically, improving overall determination accuracy while maintaining adaptability across different vehicle types.
Solution Approach 2:
The system changes the parameters used for determination from relying solely on vibration characteristics to using a combination of positional information, speed, and distance parameters. By evaluating whether the terminal moves along a transportation service route, maintains speed within a predetermined range, and maintains distance within a predetermined range from bus stops, the system achieves more reliable vehicle type discrimination.
2Productivity
If moving trajectory and moving speed are used to determine moving methods, then transportation method classification can be performed, but it becomes difficult to discriminate between bus and private vehicle even when trajectory matches bus route
Solution Approach 1:
The system introduces bus stop information and transportation service route information as intermediary references. Instead of directly comparing terminal movement patterns with vehicle characteristics, the system uses predetermined route information and bus stop locations as mediators to indirectly determine whether the terminal is using public transportation. This intermediary approach enables more accurate bus versus private vehicle discrimination.
Solution Approach 2:
The determination is extended from a single dimension (moving speed or trajectory alone) to multiple dimensions by evaluating: (1) whether the terminal moves along a transportation service route, (2) whether speed is within a predetermined range, and (3) whether distance from bus stops is within a predetermined range. This multi-dimensional evaluation significantly improves vehicle type discrimination accuracy.
3Ease of operation
If discrimination reference values are selected according to environment and sensor data, then moving method determination can be performed, but the complexity of handling various vehicle patterns increases
Solution Approach 1:
The system uses universal determination criteria that can apply to multiple vehicle types and scenarios. The same three conditions (moving along transportation service route, speed within range, distance from bus stops within range) are used regardless of specific vehicle type, boarding position, or road conditions. This universal approach simplifies the system while maintaining broad applicability.
Data Source
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AI summary
A moving method using a transportation service and other moving methods are distinguished. A moving method determination system includes a map mapping unit that specifies a path along which a user passes by using a moving trajectory of the user obtained from positional information of a mobile terminal of the user and map information, a determination unit that determines whether or not the moving trajectory of the user is on a route of transportation means by using the specified path and route information indicating a position of a route of the transportation means used by the user, and a positional information mapping unit that determines whether or not the user uses a service of the transportation means based on service information of the transportation means used by the user and a relationship between the positional information and positional information of the service of the transportation means used by the user when it is determined that the moving trajectory of the user is on the route of the transportation means, and outputs a result of the determination when it is determined that the user uses the service of the transportation means.