Patent ID: 11908321
Assignee: SHANDONG JIAOTONG UNIVERSITY
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 2:
3. The regional dynamic perimeter control method for preventing queuing overflow of boundary links of claim 2, wherein the number of queuing vehicles of the boundary links in the next sampling period is predicted based on the Kalman filtering extension method according to an obtained upstream input flow, downstream output flow and middle occupation data of the boundary links;
or,
the maximum total number of receivable vehicles of the boundary links is calculated by utilizing the lengths of the boundary links, the number of lanes, and length information of the queuing vehicles;
or,
the boundary link set with sufficient available storage space I(t) and the boundary link set with insufficient available storage space Ī(t) are obtained in the following manners:
comparing a predicted number of queuing vehicles and a maximum number of receivable vehicles of a boundary road link, and judging whether the boundary road link overflows;
if the predicted number of queuing vehicles at a next moment is less than the maximum number of receivable vehicles, classifying the road link into the boundary link set with sufficient available storage space I(t), otherwise, classifying the road link into the boundary link set with insufficient available storage space Ī(t); and
traversing all boundary link of the region in sequence to obtain the boundary link set with sufficient available storage space I(t) and the boundary link set with insufficient available storage space Ī(t).