Information processing device, information processing method, and non-transitory storage medium

An information processing method comprising:

• transmitting a request of information on vibration during traveling of a vehicle to an in-vehicle terminal,
• the in-vehicle terminal being configured to receive the information from a sensor mounted on a damper of the vehicle, the sensor measuring a frequency of the damper,
• the information including the frequency of the damper of the vehicle and a position on a road at which the frequency is measured,
• the sensor being configured to measure the frequency of the vehicle;
• receiving the information from the in-vehicle terminal which receive the request;
• deciding a region including a position, by an information processing device, as an observation target region to be observed by an artificial satellite
• transmitting an observation instruction of the observation target region to the artificial satellite;
• storing a first image data transmitted from the artificial satellite in the memory, the first image data comprising absolute height data of a surface of the road,
• the first image data being generated by observing, with a synthetic aperture radar (SAR), the observation target region by the artificial satellite which received the observation instruction;
• analyzing the first image data and identify a road in the first image data;
• calculating an average value of a first altitude of the road in the first image data;
• acquiring a second image data measured in the past with respect to the road from the memory;
• calculating an average value of a second altitude of the road in the second image data;
• determining, by the information processing device, that a liquefaction phenomenon has occurred in a case where the average value of the first altitude of the road is lower than the average value of the second altitude of the road;
• transmitting the first image data including the position on the road to a management terminal of the road in a case where the one or more processors determine that the liquefaction phenomenon has occurred;
• and
• causing a display of the management terminal to display the position on the road.

A non-transitory storage medium storing instructions that are executable by one or more processors and that cause the one or more processors to perform functions comprising:

• a step of transmitting a request of information on vibration during traveling of a vehicle to an in-vehicle terminal,
• the in-vehicle terminal being configured to receive the information from a sensor mounted on a damper of the vehicle, the sensor measuring a frequency of the damper,
• the information including the frequency of the damper of the vehicle and a position on a road at which the frequency is measured,
• the sensor being configured to measure the frequency of the vehicle;
• a step of receiving the information from the in-vehicle terminal which receive the request;
• a step of deciding a region including a position, by an information processing device, as an observation target region to be observed by an artificial satellite
• a step of transmitting an observation instruction of the observation target region to the artificial satellite;
• a step of storing a first image data transmitted from the artificial satellite in the memory, the first image data comprising absolute height data of a surface of the road,
• the first image data being generated by observing, with a synthetic aperture radar (SAR), the observation target region by the artificial satellite which received the observation instruction;
• a step of analyzing the first image data and identify a road in the first image data;
• a step of calculating an average value of a first altitude of the road in the first image data;
• a step of acquiring a second image data measured in the past with respect to the road from the memory;
• a step of calculating an average value of a second altitude of the road in the second image data;
• a step of determining, by the information processing device, that a liquefaction phenomenon has occurred in a case where the average value of the first altitude of the road is lower than the average value of the second altitude of the road;
• a step of transmitting the first image data including the position on the road to a management terminal of the road in a case where the one or more processors determine that the liquefaction phenomenon has occurred;
• and
• a step of causing a display of the management terminal to display the position on the road.