US 12,131,631 B2
Methods for managing traffic congestion in smart cities and internet of things (IoT) systems thereof
Zehua Shao, Chengdu (CN); Yong Li, Chengdu (CN); Yaqiang Quan, Chengdu (CN); Bin Liu, Chengdu (CN); and Zhihui Wen, Chengdu (CN)
Assigned to CHENGDU QINCHUAN IOT TECHNOLOGY CO., LTD., Chengdu (CN)
Filed by CHENGDU QINCHUAN IOT TECHNOLOGY CO., LTD., Sichuan (CN)
Filed on Dec. 21, 2022, as Appl. No. 18/069,965.
Application 18/069,965 is a continuation of application No. 17/660,024, filed on Apr. 21, 2022.
Claims priority of application No. 202210321872.2 (CN), filed on Mar. 29, 2022.
Prior Publication US 2023/0124522 A1, Apr. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G08G 1/01 (2006.01); G08G 1/052 (2006.01)
CPC G08G 1/0145 (2013.01) [G08G 1/0133 (2013.01); G08G 1/052 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for managing traffic congestion in a smart city, executed by a traffic scheduling strategy control management platform, comprising:
obtaining traffic data information in a preset area during a current time period, the traffic data information at least including a speed of at least one vehicle on at least one road;
predicting, based on a trained traffic state prediction model, one or more target areas where the traffic congestion is likely to occur from the preset area during a next time period by processing the traffic data information during the current time period, wherein the traffic state prediction model is a Graph Neural Network (GNN) model and a predicted result is output by at least one node of the traffic state prediction model;
determining whether a traffic scheduling strategy is needed to be switched based on traffic data information in the one or more target areas during the next time period; and
in response to determining that the traffic scheduling strategy is needed to be switched, switching a first traffic scheduling strategy to a second traffic scheduling strategy, wherein the traffic scheduling strategy includes at least one of a number of scheduled traffic police, duration of traffic lights, or temporary traffic control.