SAFE VISUAL RECOGNITION-BASED METHOD FOR STANDARD MEASUREMENT/CALCULATION OF DAYTIME TUNNEL ENTRANCE SECTION ILLUMINATION, AND SYSTEM THEREOF
    1.
    发明公开
    SAFE VISUAL RECOGNITION-BASED METHOD FOR STANDARD MEASUREMENT/CALCULATION OF DAYTIME TUNNEL ENTRANCE SECTION ILLUMINATION, AND SYSTEM THEREOF 审中-公开
    SICHERES AUF VISUELLER ERKENNUNG BASIERTES VERFAHRENFÜRSTANDARDMESSUNG / -BERECHNUNG VON TAGESZEITTUNNELEINGANGSBELEUCHUNG UND SYSTEMDAFÜR

    公开(公告)号:EP3187850A4

    公开(公告)日:2017-09-20

    申请号:EP15853969

    申请日:2015-10-15

    CPC分类号: H05B37/0218 Y02B20/46

    摘要: The invention relates to an illumination standard calculation method for a tunnel entrance section in daytime based on safe visual recognition. The method includes: (a) setting light environment parameters of the tunnel entrance section; (b) determining a feature position in the tunnel, and measuring the average road surface brightness L of the feature position; (c) placing a target object in the feature position and then making a driver drive at different speeds from outside the tunnel towards the target object to measure visual recognition distances D required by the driver to visually discover the target object under different driving speeds, and measuring the road surface brightness L 20 at the position where the driver visually discovers the target object and calculating the brightness reduction factor K to be the ratio between L and L 20 ; (d) resetting the average road surface brightness L of the tunnel entrance section and repeating steps (b) and (c) to obtain a plurality of different sets of visual recognition distances D and corresponding brightness reduction factors K; (e) using Sigmoid function model to calculate and fit the data of the plurality of sets of D and K to obtain a relational model formula of D and K: D = 215 1 + e ˆ’ 70 K + 96 + 27.6 ; (f) substituting a safe stopping sight distance D 0 corresponding to a maximum speed limit of the tunnel into the formula to obtain the minimum brightness reduction factor K 0 of the tunnel entrance section in daytime. The invention also relates to a system for implementing the illumination standard calculation method for a tunnel entrance section in daytime based on safe visual recognition.

    摘要翻译: 本发明涉及一种基于安全视觉识别的白天隧道入口段照明标准计算方法。 该方法包括:(a)设定隧道入口部分的光环境参数; (b)确定隧道中的特征位置,并测量特征位置的平均路面亮度L; (c)将目标物体放置在特征位置,然后以不同的速度从隧道外朝向目标物体驱动,以测量驾驶员在不同的驾驶速度下视觉发现目标物体所需的视觉识别距离D,以及 测量驾驶员目视发现目标物体的位置处的路面亮度L 20,并计算亮度降低因子K为L与L 20之间的比率; (d)重置隧道入口部分的平均路面亮度L,并重复步骤(b)和(c)以获得多组不同的视觉识别距离D和相应的亮度降低因子K; (e)用Sigmoid函数模型计算并拟合多组D和K的数据,得到D和K的关系模型公式:D = 215 1 + e'70 K + 96 + 27.6; (f)将对应于隧道最大速度限制的安全停止视距D 0代入公式中以获得白天隧道入口部分的最小亮度减小因子K 0。 本发明还涉及一种基于安全视觉识别实现白天隧道入口段照度标准计算方法的系统。

    SAFE VISIBILITY-BASED METHOD AND SYSTEM FOR MEASURING AND ESTIMATING LIGHTING STANDARDS IN TUNNEL MIDSECTIONS
    3.
    发明公开
    SAFE VISIBILITY-BASED METHOD AND SYSTEM FOR MEASURING AND ESTIMATING LIGHTING STANDARDS IN TUNNEL MIDSECTIONS 审中-公开
    SICHERESVISIBILITÄTSBASIERTESVERFAHREN UND SYSTEM ZUR MESSUNG UND KALKULATION VON BELEUCHTUNGS在TUNNELMITTELTEILENSTANDARDS

    公开(公告)号:EP3182077A4

    公开(公告)日:2017-08-30

    申请号:EP15853741

    申请日:2015-10-15

    IPC分类号: G01J1/28 E21D9/14 G01J5/60

    摘要: This invention relates to an illumination standard calculation method for a tunnel middle section based on safe visual recognition: (a) Setting the light environment of the tunnel middle section; (b) Placing a target object in the tunnel middle section; (c) Making a driver drive a motor vehicle at different speeds toward the target object, and measuring the visual recognition distances D required by the driver to visually discover the target object at different speeds; (d) Resetting the average brightness L of the tunnel middle section and repeating the steps (b) and (c) to obtain a plurality of different sets of visual recognition distances D and corresponding brightness values L; (e) Using the S model to fit the data of the plurality of sets of visual recognition distances D and brightness values L to obtain the formula of the relational model of D and L to be L=0.683/(5.575-In(D)); (f) Substituting a safe stopping sight distance D 0 corresponding to a maximum speed limit of the tunnel into the model formula to obtain the dynamic minimum brightness value L 0 required for the tunnel middle section under this tunnel light environment. The method improves the accuracy of safety evaluation of the tunnel middle section brightness, and the method is simple and convenient, and provides a reference basis for the road traffic safety research. The invention also provides a system for implementing this method.

    摘要翻译: 本发明涉及基于安全视觉的隧道中段照明标准计算方法:(a)设置隧道中段的光环境; (b)将目标物放入隧道中段; (c)使驾驶员以不同速度朝向目标物体驱动机动车辆,并且测量驾驶员以不同速度目视发现目标物体所需的视觉识别距离D; (d)重置隧道中间部分的平均亮度L并重复步骤(b)和(c)以获得多组不同的视觉识别距离D和对应的亮度值L; (e)使用S模型来拟合多组视觉识别距离D和亮度值L的数据以获得D和L的关系模型的公式为L = 0.683 /(5.575-In(D) ); (f)将对应隧道最高车速限制的安全停车视距D0代入模型公式中,得到该隧道灯环境下隧道中段所需的动态最小亮度值L0。 该方法提高了隧道中段亮度安全评估的准确性,方法简单方便,为道路交通安全研究提供了参考依据。 本发明还提供了用于实施该方法的系统。