The present invention provides a dangerous region appraising device that enables information about a dangerous region, which has been obtained so as not to identify a caution-requiring vehicle, to be shared with the surroundings as dangerous region information. The dangerous region appraising device according to the present invention is characterized by comprising: a peripheral vehicle situation appraising unit for appraising situations of peripheral vehicles which are vehicles located in a range within which vehicle information is to be detected; a caution-requiring vehicle detecting unit for detecting, on the basis of the situations of the peripheral vehicles, a caution-requiring vehicle which is a vehicle being driven so as to satisfy a predetermined condition; a dangerous region appraising unit for appraising, on the basis of a situation of the caution-requiring vehicle as well as road information and situations of a plurality of nearby vehicles which are vehicles located near the caution-requiring vehicle, locations at which the caution-requiring vehicle and the nearby vehicles are to exist after a predetermined fixed time as appraisal locations, obtaining, from the appraisal locations, vehicle existence extents indicative of the values of extents to which the caution-requiring vehicle and the nearby vehicles can be appraised to exist, replacing a vehicle existence extent value equal to or larger than a threshold value, which is obtained from the vehicle existence extents, by the threshold value, and appraising a dangerous region by regarding, as the dangerous region, a region having a vehicle existence extent value larger than a predetermined meaningful value; and a transmission unit for transmitting information about the dangerous region to a center device.
危険領域推定装置、危険領域情報送信システム及び危険領域推定方法
2022-05-02
Patent
Elektronische Ressource
Japanisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |