CN103141088A - 防止利用监控摄像机拍摄用照明的漫反射的装置 - Google Patents
防止利用监控摄像机拍摄用照明的漫反射的装置 Download PDFInfo
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Abstract
本发明涉及一种防止利用监控摄像机拍摄用照明的漫反射的装置。具体地,在应用红外LED照明进行夜间监视的监控摄像机中,可消除由摄像机透镜部的旋转运动引起的红外LED的漫反射区域,以确保宽的视角。用于防止漫反射的所述装置包括:LED照明部,所述LED照明部包括沿圆环部以预定间隔设置的多个红外LED,并且所述LED照明部形成有未布置红外LED的阻断区域,使得所述阻断区域对应于当LED照明部由于竖直旋转托架的竖直旋转而旋转最大角度时进入照明主体的壳体内的进入区域;以及照明部托架,所述照明部托架被容纳并固定在所述LED照明部中并且沿顺时针/逆时针方向水平旋转,使得当摄像机主体多轴旋转以进行监控时所述LED照明部中形成的所述阻断区域位于所述照明主体的壳体内。
Description
技术领域
本发明涉及一种防止利用监控摄像机拍摄用照明的漫反射的装置,由此可消除由能够4轴驱动的闭路电视(CCTV)监控摄像机的摄像机透镜部的旋转运动而引起的拍摄用照明导致漫反射的因素,以确保宽的视角。
背景技术
通常,监控摄像机被用于防止在包括房屋的具体场所(例如,停车场、百货商店、银行或展厅)中的非法行为或抢劫。这种监控摄像机被分类为其中仅检测预定区域的固定摄像机和使用云台(pan tilt)马达监控宽广区域的活动摄像机。
在不能改变方向的固定摄像机中,当在一个空间中监控多个区域时,应当安装多个摄像机。因此,主要使用活动摄像机。同样,已经开发并广泛地使用高速球型摄像机,该高速球型摄像机通过沿水平方向和竖直方向多轴旋转摄像机来监控全部的区域。
高速球型摄像机可沿与X轴方向对应的水平方向上以360°的最大角度以无限方式旋转或者受限方式旋转(摇摄),并且同时可沿与Y轴方向对应的竖直方向以90°或180°的最大角度旋转(倾斜)。因此,仅一个高速球型摄像机就可捕获并监控具体空间内的全部区域,而不用设置多个固定监控摄像机。
这种高速球型摄像机是多轴旋转驱动类型的,其中,摄像机主体可沿X轴方向或Y轴方向旋转,并且摄像机的透镜部可沿X方向以360°的角度无限地旋转。同样,在高速球型摄像机中,多个红外(IR)发光二极管(LED)沿摄像机透镜部的圆形部被设置在透镜部处,使得即使在夜晚也能够正常使用监控功能。因此,可产生为透镜部的拍摄用照明所用的IR光线。
应用高速球型摄像机的监控摄像机被牢固地安装在建筑物的天花板或墙壁上,并且作为这样的球型摄像机来实施,其中保护性透明半球被安装在供嵌入各种马达和电路板的壳体处,使得摄像机驱动主体突出出来的部分可由该保护性透明半球来保护。
然而,在根据现有技术的这种监控球型摄像机中,当调节沿竖直方向的旋转角度以调节摄像机透镜部的视角时,沿摄像机透镜部的圆形部设置的红外发光二极管中的一些可能脱离该透明半球并且可能移入到该壳体的内侧。在该情况下,由于红外光线被主体反射而干扰拍摄视角,因此发生其中强红外光线被照射在待被监控的图像上的漫反射,这成为夜间监视的障碍。因此,由于应当减少摄像机的操作范围以便避免漫反射,因此不可避免地限制了待被监控的区域。
发明内容
技术问题
本发明提供一种防止利用监控摄像机拍摄用照明的漫反射的装置,由此可消除由应用红外发光二极管照明进行夜间监视的监控摄像机的摄像机透镜部的旋转运动引起的红外(IR)发光二极管(LED)的漫反射区域,以确保宽的视角。
技术方案
根据本发明的一方面,提供一种防止利用监控摄像机拍摄用照明的漫反射的装置,其中摄像机主体被固定到壳体,在所述摄像机主体中执行包括透镜部的透镜部托架的顺时针/逆时针水平旋转、竖直旋转托架的竖直旋转以及水平旋转托架的顺时针/逆时针水平旋转,所述装置包括:发光二极管(LED)照明部,所述LED照明部包括沿圆环部以预定间隔设置的多个红外LED,并且所述LED照明部形成有没有安装红外LED的阻断区域,所述阻断区域对应于当所述LED照明部由于所述竖直旋转托架的竖直旋转而旋转最大角度时进入所述壳体内的进入区域;以及照明部托架,所述LED照明部被容纳并固定在所述照明部托架中,并且当所述摄像机主体多轴旋转以进行监控时,所述照明部托架顺时针/逆时针水平旋转,使得所述LED照明部中形成的所述阻断区域位于所述壳体内。
附图说明
图1是4轴监控摄像机的结构的分解立体图,根据本发明实施方式的用于防止拍摄用照明的漫反射的装置被应用到所述4轴监控摄像机上;
图2是应用本发明的4轴监控摄像机的联合4轴驱动状态的立体图;
图3是应用本发明的4轴监控摄像机被牢固地安装在壳体处的状态的视图;
图4是根据本发明的实施方式的用于防止红外(IR)发光二极管(LED)照明部漫反射的结构的视图;以及
图5是红外LED照明部的未安装有LED的区域位于该壳体内并且防止了漫反射的状态的视图。
具体实施方式
现将参考附图更详细地描述本发明,在附图中示出了本发明的示例性实施方式。
图1是4轴监控摄像机的结构的分解立体图,根据本发明实施方式的用于防止拍摄用照明漫反射的装置被应用到所述4轴监控摄像机上,以及图2是要应用本发明的4轴监控摄像机的联合4轴驱动状态的立体图。
如图1所示,根据本发明实施方式的用于防止拍摄用照明漫反射的装置被应用到4轴监控摄像机上,所述4轴监控摄像机包括:照明部盖10;照明部托架12;红外(IR)发光二极管(LED)照明部14;透镜部托架20;透镜部22;透镜保持部24;竖直旋转托架28;水平旋转托架30;以及基部托架34。
红外LED照明部14具有圆环形状。多个红外LED16以预定间隔牢固地安装在除红外LED照明部14的圆环部的未安装有LED的区域之外的区域中。照明部托架12被插入到红外LED照明部14的上部中,使得红外LED照明部14利用螺钉18被固定在照明部托架12中并与照明部托架12结合,并且照明部盖10被插入并固定到照明部托架12的上部中。
在红外LED照明部14与照明部托架12结合的状态下,照明部托架12与设置在照明部托架12下方的透镜部托架20结合,以便能够顺时针/逆时针水平旋转180°。与透镜保持部24螺纹连接的透镜部22被容纳在透镜部托架20中,并且利用螺钉26固定至透镜部托架20中而与透镜部托架20结合。
在此,旋转凸起部12a从照明部托架12的外边缘(即,从照明部托架12接触透镜部托架20的部分的那一侧)突出,并且在透镜部托架20的外边缘处以180°的间隔彼此面对地安装第一止动件20a和第二止动件20b。因此,旋转凸起部12a的前进由第一止动件20a和第二止动件20b阻碍,使得能够以180°的旋转半径执行止挡作用。
透镜部托架20与设置在透镜部托架20下方的竖直旋转托架28结合,以便能够以360°顺时针/逆时针水平旋转。在其中竖直旋转托架28可旋转地结合透镜部托架20的状态下,竖直旋转托架28利用保持螺钉32与水平旋转托架30的两侧结合,以便以80°竖直旋转。
水平旋转托架30被插入到基部托架34中并且与所述基部托架34结合,以便以360°顺时针/逆时针水平旋转。
也就是说,如图2所示,作为第1轴旋转驱动单元的照明部托架12被驱动,使得红外LED照明部14能够以180°顺时针/逆时针水平旋转。作为第2轴旋转驱动单元的透镜部托架20被驱动,使得透镜部22以及包括红外LED照明部14的照明部托架12能够以360°顺时针/逆时针无限地水平旋转。
同样,作为第3轴旋转驱动单元的竖直旋转托架28被驱动,使得包括透镜部22的透镜部托架20以及包括红外LED照明部14的照明部托架12能够以80°的角度竖直旋转。竖直旋转托架28的80°的旋转角度是考虑当摄像机主体被牢固地安装在壳体处(见图3中的附图标记40)并旋转时透镜部22可捕获图像的最大视角而确定的角度。
此外,作为第4轴旋转驱动单元的水平旋转托架30被驱动,使得包括透镜部22的透镜部托架20、包括红外LED照明部14的照明部托架12、以及竖直旋转托架28构造为单个摄像机主体,并且能够绕基部托架34以360°顺时针/逆时针无限地水平旋转。
还如图3所示,在其中照明部托架12、透镜部托架20、竖直旋转托架28和水平旋转托架30构造为单个摄像机主体的4轴监控摄像机被牢固地安装在壳体40上的状态下,4轴监控摄像机的主体可暴露在半圆形的透明半球体42中,并且可通过透明半球体42执行监视区域的拍摄。
红外LED照明部14构造成使得多个红外LED16沿圆环部以预定间隔安装,并且在与阻断区域A对应的区域中未安装红外LED16,当竖直旋转托架28旋转80°的最大角度时,所述阻断区域A位于壳体40内,如图4所示。
也就是说,阻断区域A是红外LED照明部14的圆环部的如下区域,所述区域在旋转轴的向上方向上的区域中以预定间隔t从圆环部的中心的水平位置偏离。因此,当红外LED16以预定间隔以角度r2安装在红外LED照明部14的圆环部处时,红外LED16被安装至与角度r1对应的区域,角度r1对应于距圆环部的中心的水平位置具有预定间隔t的区域,并且在角度r1以外的阻断区域A中未安装有红外LED16。
在此,当红外LED照明部14的圆环部的直径是62.8mm时,预定间隔t可以在从13.2至15.2mm(优选地,14.2mm)的范围内,并且角度r2可被设置成在17°至13°,并且角度r1可被设置成在25°至30°(优选地,27.0°)。
因此,如图5所示,虽然固定到壳体40的摄像机主体以作为竖直旋转托架28的最大角度的80°旋转,红外LED照明部14的某些部分进入到壳体40中,但是由于与进入壳体40内的进入区域对应的区域是未安装有LED16的阻断区域A,因此不会由于LED光而发生漫反射,使得透镜部22可执行正常监视拍摄。
在此,形成于照明部托架12的外边缘处的旋转凸起部12a、以及形成于透镜部托架20的外边缘处的第一止动件20a和第二止动件20b将红外LED照明部14限制成在180°的角度内旋转,使得被连接在红外LED16和透镜部22之间的线缆不会扭结。
工业实用性
如上所述,根据本发明,在可执行摄像机主体的竖直旋转和水平旋转、透镜部的水平旋转以及红外LED照明部的水平旋转的具有4轴驱动方法的监控球型摄像机中,在沿透镜部的圆形部设置的用于透镜部的夜间照明的红外LED照明部的多个红外LED之中移除安装在一些区域的LED,使得红外LED照明部的移除了所述LED的区域在所述摄像机旋转时可对应于进入所述壳体内的进入区域。因此,当摄像机旋转时由红外LED而可能引起的漫反射能被完全消除,使得可获得正常质量的监视图像,并且可加宽摄像机的透镜部的拍摄视角并且因此可移除监视盲点。
虽然已经参考示例性实施方式具体地示出并描述了本发明,但是本领域技术人员将理解的是,在不偏离由下述权利要求书限定的本发明的精神和范围情况下,可对这里的形式和细节进行各种变化。
Claims (4)
1.一种防止利用监控摄像机拍摄用照明的漫反射的装置,其中摄像机主体被固定到壳体,在所述摄像机主体中执行包括透镜部的透镜部托架的顺时针/逆时针水平旋转、竖直旋转托架的竖直旋转以及水平旋转托架的顺时针/逆时针水平旋转,所述装置包括:
发光二极管照明部,即LED照明部,所述LED照明部包括沿圆环部以预定间隔设置的多个红外LED,并且所述LED照明部形成有未安装红外LED的阻断区域,所述阻断区域对应于当所述LED照明部由于所述竖直旋转托架的竖直旋转而旋转最大角度时进入所述壳体内的进入区域;以及
照明部托架,所述LED照明部被容纳并固定在所述照明部托架中,并且当所述摄像机主体多轴旋转以进行监控时,所述照明部托架顺时针/逆时针水平旋转,使得所述LED照明部中形成的所述阻断区域位于所述壳体内。
2.根据权利要求1所述的装置,其中,由所述竖直旋转托架的第3轴旋转引起的所述竖直旋转的最大角度是80°。
3.根据权利要求1所述的装置,其中,在所述照明部托架的外边缘处形成有旋转凸起部,并且在所述透镜部托架的外边缘处以180°的间隔彼此面对地形成有第一止动件和第二止动件,以便阻碍所述旋转凸起部的前进。
4.根据权利要求1所述的装置,其中,当所述LED照明部的所述圆环部的直径是62.8mm时,所述LED照明部的所述阻断区域是所述红外LED照明部的所述圆环部的、在旋转轴的向上方向上的区域中以在13.2至15.2mm范围内的间隔从所述圆环部的中心的水平位置偏离的区域,或者是所述红外LED照明部的所述圆环部的、在所述旋转轴的向上方向上的区域中以25°至30°的间隔从所述圆环部的中心的水平位置偏离的区域。
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WO2012036438A2 (ko) | 2012-03-22 |
WO2012036438A3 (ko) | 2012-05-10 |
CN103141088B (zh) | 2015-12-09 |
US20130169805A1 (en) | 2013-07-04 |
KR101293484B1 (ko) | 2013-08-06 |
KR20120029321A (ko) | 2012-03-26 |
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