公开(公告)号：US11900800B2

公开(公告)日：2024-02-13

申请号：US16424150

申请日：2019-05-28

Applicant: HERE GLOBAL B.V.

Inventor： James Fowe ,  Finn Swingley

IPC: G08G1/052 ,  G08G1/01 ,  G01C21/30

CPC classification number: G08G1/052 ,  G01C21/30 ,  G08G1/0112 ,  G08G1/0133

Abstract: An approach is provided for determining tunnel speed for a vehicle travelling through a tunnel. A tunnel processing platform aggregates probe data associated with at least one vehicle into at least one tunnel path based, at least in part, on a network geometry topology for at least one tunnel. The tunnel processing platform also designates at least one probe point collected upstream of the at least one tunnel as at least one starting point of the at least one tunnel path and at least one temporary probe point as at least one endpoint of the at least one tunnel path, wherein the at least one temporary probe point is downstream of the at least one tunnel. It then determines at least one temporary tunnel speed for the at least one tunnel path based, at least in part, on the timestamp for the at least one probe point and the current time associated with the at least one temporary probe point.

公开(公告)号：US10304331B2

公开(公告)日：2019-05-28

申请号：US14750703

申请日：2015-06-25

Applicant: HERE Global B.V.

Inventor： James Fowe ,  Finn Swingley

IPC: G08G1/052 ,  G01C21/30 ,  G08G1/01

Abstract: An approach is provided for determining tunnel speed for a vehicle travelling through a tunnel. A tunnel processing platform aggregates probe data associated with at least one vehicle into at least one tunnel path based, at least in part, on a network geometry topology for at least one tunnel. The tunnel processing platform also designates at least one probe point collected upstream of the at least one tunnel as at least one starting point of the at least one tunnel path and at least one temporary probe point as at least one endpoint of the at least one tunnel path, wherein the at least one temporary probe point is downstream of the at least one tunnel. It then determines at least one temporary tunnel speed for the at least one tunnel path based, at least in part, on the timestamp for the at least one probe point and the current time associated with the at least one temporary probe point.