公开(公告)号：US20230096509A1

公开(公告)日：2023-03-30

申请号：US17745424

申请日：2022-05-16

申请人： Wuhan University of Technology

发明人： Xinglin Tong ,  Qinyu Wang ,  Chengwei Deng ,  Cui Zhang ,  Yan Mao ,  Jingchuang Wei

IPC分类号： G08G1/01 ,  G01H9/00 ,  G08G1/04

摘要： A non-blind area real-time monitoring and alarming system for an accident on a freeway is provided, which belongs to the field of photoelectric technology and can solve the existing problems in whole journey information monitoring for freeways, such as failure to cover all freeway sections and lack of all-weather and prompt monitoring, and being subject to severe environments such as rain, fog and snow, or conditions such as poor visibility at night. The system includes a distributed sound wave detection fiber-optic cable, a sound wave signal demodulator, a network switch, a workstation, and a monitoring terminal. A fiber-optic sensing network composed of a series of reflection nodes distributed at equal distances is utilized to monitor sound wave signals from traffic accidents efficiently in real time without blind areas, accurately locate a traffic incident by analyzing frequency components, and transmit alarming information in time.

公开(公告)号：US11735038B2

公开(公告)日：2023-08-22

申请号：US17745424

申请日：2022-05-16

申请人： Wuhan University of Technology

发明人： Xinglin Tong ,  Qinyu Wang ,  Chengwei Deng ,  Cui Zhang ,  Yan Mao ,  Jingchuang Wei

IPC分类号： G08G1/01 ,  G08G1/04 ,  G01H9/00

CPC分类号： G08G1/0133 ,  G01H9/004 ,  G08G1/04

摘要： A non-blind area real-time monitoring and alarming system for an accident on a freeway is provided, which belongs to the field of photoelectric technology and can solve the existing problems in whole journey information monitoring for freeways, such as failure to cover all freeway sections and lack of all-weather and prompt monitoring, and being subject to severe environments such as rain, fog and snow, or conditions such as poor visibility at night. The system includes a distributed sound wave detection fiber-optic cable, a sound wave signal demodulator, a network switch, a workstation, and a monitoring terminal. A fiber-optic sensing network composed of a series of reflection nodes distributed at equal distances is utilized to monitor sound wave signals from traffic accidents efficiently in real time without blind areas, accurately locate a traffic incident by analyzing frequency components, and transmit alarming information in time.