Vehicle mode detection systems
Aspects of the present disclosure describe systems, methods, and devices for vehicle mode detection based on acceleration data and location data during a trip detected by mobile devices in a vehicle. According to some examples, location data will be compared to known routeway data to detect a vehicle mode. In other examples acceleration data will be used to calculate the consistency of vehicular velocity during a trip to detect a vehicle mode. In some additional aspects, multiple analyses will be performed on the same data sets to check for false positives with vehicle mode detection.
1. A system for detecting a vehicle mode associated with a travel segment, comprising:
at least one processor; and
at least one memory storing computer-executable instructions that, when executed by the at least one processor, cause the system to:
receive map data from a first external database at a first mobile device, the map data including data comprising information about one or more routeways;
collect first mobile device sensor data by mobile device sensors of the first mobile device during a trip, the first mobile device sensor data including acceleration data and location data;
determine by the first mobile device, based on the acceleration data, a first stopping point and a second stopping point encountered during the trip;
assign first mobile sensor data collected between the first stopping point and the second stopping point as a first travel segment;
determine by the first mobile device, based on the location data and the map data, an average snapping distance between the location data collected during the first travel segment and a predetermined routeway type;
determine by the first mobile device, based on the average snapping distance and a predefined snapping distance threshold value, a first detected vehicle mode; and,
assign the first detected vehicle mode to the first travel segment and store at a memory.
2. The system of claim 1 , wherein the predetermined routeway type is at least one of: a roadway or train tracks.
3. The system of claim 2 , wherein the predefined snapping distance threshold value is less than 20 m.
4. The system of claim 1 , wherein the instructions when executed by the at least one processor, further cause the system to receive map data from a second external database.
5. The system of claim 1 , wherein the instructions when executed by the at least one processor, further cause the system to:
determine, based on the acceleration data, a number of acceleration actions per distance unit for the first travel segment;
determine, based on the number of acceleration actions per distance unit and a predefined acceleration action threshold value, a second detected vehicle mode;
determine whether the first detected vehicle mode and the second detected vehicle mode are the same; and if so,
store the second detected vehicle mode at the memory.
6. The system of claim 5 , wherein the predefined acceleration action threshold value is 1m/s 2 .
7. The system of claim 1 , wherein upon assigning first mobile sensor data collected between the first stopping point and the second stopping point as the first travel segment, the computer-executable instructions cause the system to:
determine a first distance between the first stopping point and a predetermined stopping object;
determine a second distance between the second stopping point and the predetermined stopping object;
detect, based on the first distance and the second distance, a first detected vehicle mode; and,
assign the first detected vehicle mode to the first travel segment and store at a memory.
8. The system of claim 7 , wherein the predetermined stopping object is at least one of: a train station or a roadway stopping object.