Three-dimensional information processing method and three-dimensional information processing device

A three-dimensional information processing device, comprising:

• a processor;
• and
• memory, wherein
• using the memory, the processor:
• obtains first position information from a first sensor that detects a three-dimensional position of a mobile object;
• when no abnormality is present in the first position information, (i) estimates a location of the mobile object using the first position information, and (ii) performs automatic operation of the mobile object in a first mode, by use of the location;
• and
• when an abnormality is present in the first position information, performs a process that corresponds to the abnormality and relates to the automatic operation of the mobile object, and
• the process includes
• (i) obtaining second position information detected by an alternative sensor that is provided to the mobile object and different from the first sensor, the second position information being one-dimensional position information or two-dimensional position information,
• (ii) estimating a location of the mobile object using the second position information, and
• (iii) switching a mode of the automatic operation from the first mode to a second mode having a lower level of the automatic operation than the first mode.

A non-transitory computer readable medium storing therein a computer program, which when executed by a processor, causes the processor to perform operations including:

• obtaining, via a communication channel, map data that includes first three-dimensional position information;
• generating second three-dimensional position information from information detected by a sensor;
• predicting whether the mobile object will enter an area in which the first three-dimensional position information is more difficult to obtain via the communication channel while the mobile object is in the area than while the mobile object is not in the area;
• when it is predicted that the mobile object will not enter the area in which the first three-dimensional position information is more difficult to obtain via the communication channel while the mobile object is in the area than while the mobile object is not in the area, estimating a location of a mobile object having the sensor using the first three-dimensional position information and the second three-dimensional position information;
• and
• when it is predicted that the mobile object will enter the area in which the first three-dimensional position information is more difficult to obtain via the communication channel while the mobile object is in the area than while the mobile object is not in the area, (i) obtaining, via the communication channel, third three-dimensional position information having a narrower range than a range of the first three-dimensional position information and (ii) estimating the location of the mobile object having the sensor using the second three-dimensional position information and the third three-dimensional position information.

A non-transitory computer readable medium storing therein a computer program, which when executed by a processor, causes the processor to perform operations including:

• obtaining first position information from a first sensor that detects a three-dimensional position of a mobile object;
• when no abnormality is present in the first position information, (i) estimating a location of the mobile object using the first position information, and (ii) performing automatic operation of the mobile object in a first mode, by use of the location;
• and
• when an abnormality is present in the first position information, performing a process that corresponds to the abnormality and relates to the automatic operation of the mobile object, wherein
• the process includes
• (i) obtaining second position information detected by an alternative sensor that is provided to the mobile object and different from the first sensor, the second position information being one-dimensional position information or two-dimensional position information,
• (ii) estimating a location of the mobile object using the second position information, and
• (iii) switching a mode of the automatic operation from the first mode to a second mode having a lower level of the automatic operation than the first mode.