Patent ID: 11933633
Assignee: AICHI STEEL CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 2:
3. A point cloud data acquiring system, comprising:
a ranging sensor configured to measure a plurality of azimuths and distances from the ranging sensor to a plurality of planimetric features configuring a traveling environment of a vehicle of the point cloud data acquiring system, and acquire point cloud data representing the plurality of azimuths and distances;
a plurality of magnetic markers laid in a traveling road of the vehicle, each of the plurality of magnetic markers being a magnetism generation source;
a magnetic sensor configured to detect the plurality of magnetic markers;
a plurality of RFID (Radio Frequency IDentification) tags, each of the plurality of RFID tags being attached to each of the plurality of magnetic markers, each of the plurality of RFID tags being configured to provide unique information of a magnetic marker of the plurality of magnetic markers to which the RFID tag is attached;
an RFID tag reader configured to read, from the plurality of RFID tags, the unique information of each of the plurality of magnetic markers; and
processing circuitry configured to record, in a memory, the point cloud data by linking each data representing azimuth and distance of the plurality of azimuths and distances with (1) marker reference information including the unique information of any marker and each of the plurality of magnetic markers, and (2) relative position information representing a relative position of the vehicle with reference to each of the plurality of magnetic markers.