Locating a user device
Embodiments of the present disclosure support improving determination of a location of a driver device that performs bandwidth constrained communication with a server, based on sensor data acquired by the driver device. The driver device reduces dimensionality of the acquired sensor data before transmitting the sensor data to the server over a communication network. The server receives GPS data and compressed sensor data from the driver device, and determines a quality metric related to the GPS data. Based on the quality metric, the server increases dimensionality of the compressed sensor data to reconstruct original sensor data acquired by the driver device. The server than augments the GPS data with the reconstructed sensor data, and determines location information of the driver device based on the augmented data.
1. An apparatus comprising:
a receiver configured to obtain global positioning system (GPS) data with position information associated with the apparatus;
at least one sensor configured to acquire sensor data having a first dimensionality;
a processor configured to process the acquired sensor data to reduce dimensionality of the acquired sensor data from the first dimensionality to a second dimensionality; and
a transmitter configured to:
periodically transmit the GPS data over a communication network with a first transmission periodicity, and
periodically transmit the processed sensor data over the communication network with a second transmission periodicity, the second transmission periodicity adjusted over time based at least in part on information about a location of the apparatus.
2. The apparatus of claim 1 , wherein:
the receiver is further configured to receive a feedback signal from another apparatus indicative of the location of the apparatus on a map; and
the transmitter is further configured to adjust transmission of the processed sensor data by adjusting the second transmission periodicity, based on the received feedback signal.
3. The apparatus of claim 2 , wherein the transmitter is further configured to:
adjust transmission of the processed sensor data by decreasing the second transmission periodicity, when the location of the apparatus is within a threshold vicinity from a defined region on the map; and
adjust transmission of the processed sensor data by increasing the second transmission periodicity, when the location of the apparatus is outside the threshold vicinity from the defined region on the map.
4. The apparatus of claim 2 , wherein the received feedback signal is further indicative of a quality metric of the GPS data, and the transmitter is further configured to:
adjust transmission of the processed sensor data by decreasing the second transmission periodicity, when the quality metric is below a predetermined threshold value; and
adjust transmission of the processed sensor data by increasing the second transmission periodicity, when the quality metric is above the predetermined threshold value.
5. The apparatus of claim 1 , wherein:
the receiver is further configured to receive a feedback signal from another apparatus indicative of the location of the apparatus; and
the processor is further configured to adjust processing of the acquired sensor data by adjusting the second dimensionality, based on the received feedback signal.
6. The apparatus of claim 1 , wherein:
the receiver is further configured to receive a feedback signal from another apparatus indicative of a quality metric of the GPS data; and
the processor is further configured to adjust processing of the acquired sensor data by adjusting the second dimensionality, based on the received feedback signal.
7. The apparatus of claim 1 , wherein the at least one sensor comprises at least one of: an Inertial Measurement Unit (IMU), an accelerometer, a gyroscope, a magnetometer, and a spatial triangulation sensor coupled to the apparatus.
8. A method comprising:
obtaining, at an apparatus, global positioning system (GPS) data with position information associated with the apparatus;
acquiring, by at least one sensor coupled to the apparatus, sensor data having a first dimensionality;
processing the acquired sensor data to reduce dimensionality of the acquired sensor data from the first dimensionality to a second dimensionality;
periodically transmitting the GPS data over a communication network with a first transmission periodicity; and
periodically transmitting the processed sensor data over the communication network with a second transmission periodicity, the second transmission periodicity adjusted over time based at least in part on information about a location of the apparatus.
9. The method of claim 8 , wherein the second transmission periodicity is further based on a quality metric of the GPS data.
10. The method of claim 9 , further comprising:
adjusting transmission of the processed sensor data by decreasing the second transmission periodicity, when the location of the apparatus is within a threshold vicinity from a defined region on the map; and
adjusting transmission of the processed sensor data by increasing the second transmission periodicity, when the location of the apparatus is outside the threshold vicinity from the defined region on the map.
11. The method of claim 10 , wherein the received feedback signal is further indicative of a quality metric of the GPS data, and the method further comprising:
adjusting transmission of the processed sensor data by decreasing the second transmission periodicity, when the quality metric is below a predetermined threshold value; and
adjusting transmission of the processed sensor data by increasing the second transmission periodicity, when the quality metric is above the predetermined threshold value.
12. The method of claim 10 , further comprising:
receiving, at the apparatus, a feedback signal from another apparatus indicative of the location of the apparatus on a map; and
adjusting transmission of the processed sensor data by adjusting the second transmission periodicity, based on the received feedback signal.
13. The method of claim 8 , further comprising:
receiving, at the apparatus, a feedback signal from another apparatus indicative of the location of the apparatus; and
adjusting processing of the acquired sensor data by adjusting the second dimensionality, based on the received feedback signal.
14. The method of claim 8 , further comprising:
receiving, at the apparatus, a feedback signal from another apparatus indicative of a quality metric of the GPS data; and
adjusting processing of the acquired sensor data by adjusting the second dimensionality, based on the received feedback signal.
15. The method of claim 8 , further comprising processing the acquired sensor data based on variational auto encoding to reduce dimensionality of the acquired sensor data.
16. A non-transitory computer-readable medium comprising computer-executable instructions that, when executed by one or more processors of an apparatus, cause the one or more processors to:
obtain global positioning system (GPS) data with position information associated with the apparatus;
acquire sensor data having a first dimensionality;
process the acquired sensor data to reduce dimensionality of the acquired sensor data from the first dimensionality to a second dimensionality;
periodically transmit the GPS data over a communication network with a first transmission periodicity; and
periodically transmit the processed sensor data over the communication network with a second transmission periodicity, the second transmission periodicity adjusted over time based at least in part on information about a location of the apparatus.
17. The computer-readable medium of claim 16 , wherein the instructions further cause the one or more processors to:
receive a feedback signal from another apparatus indicative of the location of the apparatus on a map; and
adjust transmission of the processed sensor data by adjusting the second transmission periodicity, based on the received feedback signal.
18. The computer-readable medium of claim 17 , wherein the instructions further cause the one or more processors to:
adjust transmission of the processed sensor data by decreasing the second transmission periodicity, when the location of the apparatus is within a threshold vicinity from a defined region on the map; and
adjust transmission of the processed sensor data by increasing the second transmission periodicity, when the location of the apparatus is outside the threshold vicinity from the defined region on the map.
19. The computer-readable medium of claim 17 , wherein the received feedback signal is further indicative of a quality metric of the GPS data, and the instructions further cause the one or more processors to:
adjust transmission of the processed sensor data by decreasing the second transmission periodicity, when the quality metric is below a predetermined threshold value; and
adjust transmission of the processed sensor data by increasing the second transmission periodicity, when the quality metric is above the predetermined threshold value.
20. The computer-readable medium of claim 16 , wherein the instructions further cause the one or more processors to:
receive a feedback signal from another apparatus indicative of a quality metric of the GPS data; and
adjust processing of the acquired sensor data by adjusting the second dimensionality, based on the received feedback signal.