To derive a traffic volume of a route between a starting point and a destination point based on a flow rate observed at a fixed point.SOLUTION: A traffic flow derivation device includes: a receiving unit for receiving information indicating a traffic volume at each of a plurality of different observation points measured by passive measurement; and a first derivation unit for deriving a first traffic volume that is a traffic volume of a route between a starting point and a destination by a network tomography function that is a method for deriving an internal state of a network from behavior of a packet transmitted and received between observation nodes with part of nodes in the network being the observation node based on each time series data of information indicating a plurality of traffic volumes received by the receiving unit.SELECTED DRAWING: Figure 2
【課題】定点で観測される流量に基づいて、出発地点と目的地点と間の経路の交通量を導出すること。【解決手段】交通流導出装置は、パッシブ計測によって計測された複数の異なる観測地点の各々での交通量を示す情報を受け付ける受付部と、受付部が受け付けた複数の交通量を示す情報の各々の時系列データに基づいて、ネットワーク中の一部のノードを観測ノードとし、観測ノード間で送受信されたパケットの振る舞いから、ネットワークの内部状態を導出するための手法であるネットワークのトモグラフィ機能によって、出発地と目的地との間の経路の交通量である第1交通量を導出する第1導出部とを備える。【選択図】図2
TRAFFIC FLOW DERIVATION DEVICE, TRAFFIC FLOW DERIVATION METHOD, AND COMPUTER PROGRAM
交通流導出装置、交通流導出方法、及びコンピュータプログラム
01.10.2020
Patent
Elektronische Ressource
Japanisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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