Patent ID: 11862014
Assignee: AICHI STEEL CORPORATION
Field: Civil engineering (Other fields)
Classification: CPC G  E | IPC G

Claim 15:
16. A magnetic marker system including a plurality of magnetic markers laid in or on a traveling road so as to be detectable by a magnetic detecting part attached to a vehicle, the system comprising:
vehicles each of which outputs, when detecting a magnetic marker of the plurality of magnetic markers, detection information including marker identifying information configured to uniquely identifying the magnetic marker; and
a server apparatus which acquires the detection information outputted from each of the vehicles, wherein
the server apparatus includes a state estimating part which estimates a state of the magnetic marker based on a plurality of the detection information regarding the magnetic marker, and
wherein the server apparatus has a storage part which stores operation data indicating operation status of the plurality of magnetic markers and, in the storage part, the operation data is stored so as to be manageable for each road type in or on which the plurality of magnetic markers are laid, and wherein the state estimating part performs statistical process regarding the operation data for the each road type and estimates the state of each of the plurality of magnetic markers based on result of the statistical process.