Information processing device, measurement device and control method
A server device 4 stores on a storage unit 42 an advanced map database 43 which includes feature information associated with a feature. The server device 4 receives, from vehicle mounted devices 1 equipped with external sensors 31 which measure features, difference information Idf indicative of a difference between feature information and the actual feature corresponding to the feature information. In accordance with the degree of reliability Rdf which is calculated based on a plurality of the difference information Idf, the server device 4 sends to the vehicle mounted device 1 a raw data request signal SR for requesting the transmission of raw data which is measurement data of the actual feature.
1. An information processing device comprising:
a processor configured to
calculate a degree of reliability of difference information indicative of a difference between feature information associated with a feature and a real feature corresponding to the feature information, the difference information being provided by moving bodies which measure features; and
determine, on a basis of the degree of reliability, whether or not to request a moving body equipped with an external sensor to send raw data of the real feature to the information processing device, the raw data being generated by the external sensor.
2. The information processing device according to claim 1 ,
wherein a volume of the raw data is larger than a volume of the difference information.
3. The information processing device according to claim 1 , the processor further configured to:
update the feature information in cases that the degree of the reliability exceeds an upper limit value while not updating the feature information in cases that the degree of the reliability is lower than a lower limit value, and
requests the moving bodies or another moving body to send the raw data in cases that the degree of the reliability does not exceed the upper limit value and equal to or higher than the lower limit value.
4. The information processing device according to claim 1 , the processor further configured to:
request the moving bodies or another moving body to send the raw data in cases that the processor does not receive the difference information a number of times necessary to calculate the degree of the reliability during a predetermined period.
5. The information processing device according to claim 1 , wherein the raw data is three-dimensional data generated by ranging device(s) which emit laser beams.
6. A measurement device mounted on a moving body, the measurement device comprising:
an external sensor configured to measure a position of an object situated around the moving body;
a processor configured to,
sequentially store raw data generated by the external sensor;
receive, from an external device which includes a storage device configured to store feature information associated with a feature, a transmission request including position information associated with the feature, wherein the transmission request is provided to the processor of the measurement device based on a degree of reliability of difference information indicative of a difference between the feature information associated with the feature and a real feature corresponding to the feature information; and
send to the external device the stored raw data in cases that a distance between a position of the moving body and a position indicated by the transmission request is equal to or shorter than a predetermined distance.
7. The measurement device according to claim 6 ,
wherein the raw data is updated in cases that the position of the moving body changes.
8. The measurement device according to claim 6 ,
wherein the processor is configured to store a plurality of the raw data corresponding to a plurality of different positions of the moving body and
wherein in cases that the position of the moving body changes, the processor deletes longest-stored raw data out of the plurality of the raw data while storing raw data newly generated by the external sensor.
9. A control method executed by an information processing device equipped with a processor configured to store feature information associated with a feature, the control method comprising:
calculating a degree of reliability of difference information, provided from moving bodies equipped with measurement devices which measure features, wherein the difference information is indicative of a difference between the feature information and a real feature corresponding to the feature information; and
determining, on a basis of the degree of reliability, whether or not to request a moving body equipped with an external sensor to send raw data of the real feature to the information processing device, the raw data being generated by the external sensor.
10. A control method executed by a measurement device mounted on a moving body, the measurement device including an external sensor configured to measure a position of an object situated around the moving body; the control method comprising:
sequentially storing raw data generated by the external sensor;
receiving, from an external device which includes a storage device configured to store feature information associated with a feature, a transmission request including position information associated with the feature, wherein the transmission request is provided to the processor of the measurement device based on a degree of reliability of difference information indicative of a difference between the feature information associated with the feature and the real feature corresponding to the feature information; and
sending to the external device the stored raw data in cases that a distance between a position of the moving body and a position indicated by the transmission request is equal to or shorter than a predetermined distance.