一种基于稀疏观测数据的交通枢纽客流时空分布预测方法

By constructing the PD-STHGAT deep learning framework and combining hypergraph attention network and gated linear unit, the problem of passenger flow prediction in transportation hubs under sparse observation data is solved, and efficient and accurate prediction of passenger flow distribution in large-scale integrated transportation hubs is achieved.

CN121305865BActive Publication Date: 2026-07-17SOUTHEAST UNIV +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHEAST UNIV
Filing Date
2025-10-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are difficult to effectively predict passenger flow distribution in large-scale integrated transportation hubs, especially under conditions of sparse observation data, and are difficult to generalize and cannot capture high-order spatiotemporal correlations.

Method used

We construct the PD-STHGAT deep learning framework based on pedestrian dynamics knowledge and high-order hypergraph modeling methods. Combining hypergraph attention network and gated linear unit, we achieve passenger flow prediction by interpolating sparse passenger flow distribution matrix and introduce reconstruction loss and physical loss to constrain the prediction results.

Benefits of technology

It enables accurate prediction of passenger flow distribution in transportation hubs under sparse observation data conditions, captures high-order spatiotemporal characteristics, and provides a scientific basis for management and control.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121305865B_ABST
    Figure CN121305865B_ABST
Patent Text Reader

Abstract

本发明公开了一种基于稀疏观测数据的交通枢纽客流时空分布预测方法。该方法包括:(1)构建乘客流线网络的超图关联矩阵及稀疏客流分布矩阵;(2)基于宏观网络流模型建立行人动力学模块PD,将客流需求输入PD并通过下采样获得先验客流数据;(3)将超图注意力网络HGAT与门控线性单元GLU结合,构建时空超图注意力网络模块STHGAT,利用PD生成的先验数据插补稀疏客流分布矩阵,得到稠密矩阵并输入STHGAT,输出最终预测结果;(4)总损失包括重建损失和物理损失,衡量预测结果在可观测位置的误差,约束预测结果与PD的动态特性保持一致。本发明通过引入行人领域知识和高阶超图建模,有效克服稀疏观测限制,实现对交通枢纽客流分布的准确预测。
Need to check novelty before this filing date? Find Prior Art