MONITORING ALARM DEVICE, MONITORING ALARM METHOD, AND PROGRAM

• Main Authors: MATSUI YOSHIYUKI, ONDA NAOAKI, TANAKA MASAYUKI, SAEKI MASATO
• Format: Patent
• Language: English; Japanese
• Published: 30.05.2023
• Subjects: ALARM SYSTEMS; CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; ORDER TELEGRAPHS; PHYSICS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; TRAFFIC CONTROL SYSTEMS

To ensure safety and safety during simple inspection in which main line regulation of a highway is not performed, and enable an inspector to inspect without carefulness to rearward (an anti-travel direction of a vehicle).SOLUTION: A monitoring alarm device monitors a rear side of a road from a road shoulder 91 of the road, and alerts a user of a vehicle coming into the road shoulder 91. The monitoring alarm device includes a camera 30 for imaging the rear side of the road, image processing means 51 for detecting and identifying and tracking a vehicle and a class from each image frame of a moving image, borderline setting means S21 for setting a borderline 9 so as to overlap a white line band 90 on a road surface partitioning a vehicle traveling lane 92 and the road shoulder 91, and means S41 for comparing an area ratio of two regions B1 and B2 obtained by dividing the vehicle region BB occupied by the vehicle being tracked by the borderline 9 with a warning threshold of the class of the vehicle, and for warning when the threshold is exceeded.SELECTED DRAWING: Figure 1 【課題】 高速道路の本線規制を行わない簡単な巡視点検時、安心・安全を確保して、点検者が後方（車両の反進行方向）に気を取られることなく点検できるようにする。【解決手段】 道路の路肩９１内から道路後方側を監視して路肩９１に進入して来る車両をユーザに警告する監視警告装置。道路後方側を撮像するカメラ３０、動画の各画像フレームから車両とクラスを検出及び識別し且つ追跡する画像処理手段５１、車両走行車線９２と路肩９１を区切る路面上の白線帯９０に重ねて境界線９を設定する境界線設定手段Ｓ２１、追跡中の車両が占める車両領域ＢＢを境界線９で分断した２領域Ｂ１，Ｂ２の面積比を、当該車両のクラスの警告閾値と比較して、閾値を越えた場合に警告する手段Ｓ４１を有する監視警告装置。【選択図】 図１