PROBLEM TO BE SOLVED: To provide a traffic congestion prediction device, a drive recorder device, and a congestion prediction method of a traffic congestion prediction device that are capable of suppressing deterioration of traffic congestion prediction accuracy while suppressing a processing load more.SOLUTION: A traffic congestion prediction device comprises a control unit including: speed signal input means; a speed interface for inputting a signal corresponding to a speed of the own vehicle; an inter-vehicle distance calculation unit 51e for calculating a distance between the own vehicle and a preceding vehicle on the basis of information from an on-vehicle camera mounted on the own vehicle; an inter-vehicle time calculating unit 51f for calculating an inter-vehicle time by dividing the inter-vehicle distance calculated by the inter-vehicle distance calculating unit 51e by the speed of the own vehicle obtained from a signal input through the speed interface; and a change prediction unit 51g for predicting a change related to at least one traffic congestion of an occurrence of congestion and congestion cancellation on the basis of whether the inter-vehicle distance calculated by the inter-vehicle distance calculation unit 51e and the inter-vehicle time calculated by the inter-vehicle time calculation unit 51f satisfy a predetermined condition.SELECTED DRAWING: Figure 2
【課題】より処理負荷を抑えつつも、渋滞予測精度の低下を抑えることができる渋滞予測装置、ドライブレコーダ装置及び渋滞予測装置の渋滞予測方法を提供する。【解決手段】渋滞予測装置は、速度信号入力手段と、自車両の速度に応じた信号を入力する速度インターフェースと、自車両に搭載された車載カメラからの情報に基づいて、自車両と前方車両までの車間距離を求める車間距離算出部51eと、車間距離算出部51eにより算出された車間距離を、速度インターフェースにより入力された信号により求められる自車両の速度で除することで車間時間を算出する車間時間算出部51fと、車間距離算出部51eにより算出された車間距離及び車間時間算出部51fにより算出された車間時間が所定条件を満たすか否かによって、渋滞の発生及び渋滞の解消の少なくとも一方の渋滞に関する変化を予測する変化予測部51gとを有する制御部を備える。【選択図】図2
TRAFFIC CONGESTION PREDICTION DEVICE, DRIVE RECORDER DEVICE, AND CONGESTION PREDICTION METHOD FOR TRAFFIC CONGESTION PREDICTION DEVICE
渋滞予測装置、ドライブレコーダ装置及び渋滞予測装置の渋滞予測方法
2018-04-26
Patent
Elektronische Ressource
Japanisch
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