CN202231810U - Infrared illumination system of monitoring terminal for water level and water quality - Google Patents

Infrared illumination system of monitoring terminal for water level and water quality Download PDF

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CN202231810U
CN202231810U CN 201120379453 CN201120379453U CN202231810U CN 202231810 U CN202231810 U CN 202231810U CN 201120379453 CN201120379453 CN 201120379453 CN 201120379453 U CN201120379453 U CN 201120379453U CN 202231810 U CN202231810 U CN 202231810U
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water
infrared illumination
infrared
quality
camera
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CN 201120379453
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Chinese (zh)
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郝明龙
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郝明龙
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Abstract

The utility model relates to an infrared illumination system of a monitoring terminal for water level and water quality, comprising a pipeline vertically disposed in water, a spherical floater movably disposed in the pipeline and having a density less than the density of water, a water level camera disposed at the top end of the pipeline and used for shooting the spherical floater, and a water quality camera disposed at one side of the pipeline and used for obtaining images for grey recognition of water quality. The infrared illumination system of a monitoring terminal for water level and water quality is characterized by comprising annular infrared illumination circuit boards sleeved on the lenses of the water level camera and the water quality camera, wherein infrared light-emitting diodes are distributed on the infrared illumination circuit boards. The infrared illumination system disclosed by the utility model is composed of 64 high-power infrared light-emitting diodes; the system uses 12 V power supply, therefore, the circuits are suitable for using a series-parallel combination way, that is, eight infrared light-emitting diodes are connected in series, proper resistors are connected in series to regulate voltage, and then the eight infrared light-emitting diodes connected in series are connected to a drive circuit in parallel.

Description

水位、水质的监测终端的红外照明系统 Infrared illumination system for monitoring water level terminal, the quality

技术领域 FIELD

[0001] 本实用新型涉及红外照明的技术领域,具体是一种水位、水质的监测终端的红外照明系统。 [0001] Technical Field The present invention relates to an infrared illumination, in particular a water level, infrared illumination system monitors the water quality of the terminal.

背景技术 Background technique

[0002] 水位是江、河、湖、海水势变化的标志,是重要的水情参数,水位测量的真实性和精度直接关系到防洪、发电及灌溉等方方面面。 [0002] water level of rivers, lakes, water potential changes sign, is an important hydrological parameters, the authenticity and accuracy of the level measurement is directly related to flood control, power generation and irrigation and other aspects.

[0003] 水质参数描述了水体的质量,由于工业化制造产生的大量废液和农业化学药剂的使用,导致水污染的不断加剧,采用及时、有效、准确的水质监测系统,能够快速的作出处理对策,对于减排、治污有着重要的意义。 [0003] water quality parameters describe the quality of water bodies, due to the use of industrial waste produced by a large number of manufacturing and agricultural chemicals, leading to growing water pollution, the use of timely, effective and accurate water quality monitoring system that can quickly make a deal with countermeasures for emissions, pollution of great significance.

[0004] 采用的水位、水质测量方法是基于机器视觉的,因而对照明光源有着较高要求。 [0004] The use of water, water quality measurement method is based on machine vision, and therefore has a high requirement for the illumination source. 若采用普通可见光照明会与环境光线产生混叠,继而影响测量精度甚至导致测量错误。 If a common visible light illumination and ambient light will cause aliasing, thereby affecting the measurement accuracy even lead to measurement errors. 为了将环境光线有效隔离,需要提供一种高功率红外LED照明系统,在摄像机镜头加装通红外滤镜即可有效隔离可见光。 In order to effectively isolate the ambient light, desirable to provide a high-power infrared LED lighting system, in the installation of the camera lens can be effectively isolated from the through-visible infrared filter.

实用新型内容 SUMMARY

[0005] 本实用新型要解决的技术问题是提供一种结构简单、成本较低的水位、水质的监测终端的红外照明系统。 [0005] This technical problem to be solved by invention is to provide a simple structure and low cost of water, infrared illumination system monitors the water quality of the terminal.

[0006] 为了解决上述技术问题,本实用新型提供了一种水位、水质的监测终端的红外照明系统,包括:水位、水质的监测终端包括:垂直设于水中的管道、活动设于该管道中且密度小于水的球形浮子、设于管道顶端的用于拍摄所述球形浮子的水位摄像机、设于所述管道一侧用于获取水质灰度识别用图像的水质摄像机;其特点是:该红外照明系统包括套设于水位摄像机和水质摄像机的镜头上的环状的红外照明电路板,该红外照明电路板上分布有红外发光二极管。 [0006] To solve the above problems, the present invention provides a water level, an infrared illumination system water quality monitor terminal, comprising: a water level, water quality monitoring terminal comprises: a vertical duct provided in the water, disposed in the conduit activity and a density less than water float ball, is provided at the top of a camera for photographing a water conduit of the spherical float, provided in the piping side camera for acquiring quality recognition quality gradation image; characterized in that: the infrared the illumination system comprises an annular sleeve disposed on the water quality camera lens camera and infrared illumination board, the circuit board infrared illumination distribution of infrared light emitting diode.

[0007] 本实用新型的上述技术方案相比现有技术具有以下优点:(1)本实用新型的红外照明系统由64颗高功率红外发光二极管组成,红外管选用东宝DBE6100A,其波长为8. 5nm, 单颗功率为IOOmW,典型电压为1. 4V。 [0007] In the present invention the above technical solution prior art has the following advantages: (1) the present invention by the infrared illumination system 64 a high power infrared light-emitting diodes, infrared tube selection Toho DBE6100A, a wavelength of 8 . 5nm, single power IOOmW, typical voltage of 1. 4V. 系统采用12V供电,因而电路宜采用串并结合的方式, 即8个红外管串联,串接合适的电阻以调压,再将8路串联红外管并接至驱动电路。 12V supply system, and thus the circuit should use a combination of series, i.e. infrared tube 8 connected in series, the series resistor to the appropriate voltage, then the infrared tube 8 and connected in series to the driving circuit. (2)本实用新型的水位测量基本原理:根据物体在眼中的成像原理,东西越远,看着就越小,对于摄像机、照相机拍摄的视频、图片,同样是如此。 (2) of the present invention to measure the water level basic principles: the principle of the imaging object in the eye, something farther, looking less for camcorders, cameras captured video, pictures, the same is true. 那么,将一个浮子放在水面上,将摄像机固定在水面上方某个位置垂直向下拍摄浮子。 Then, a float on the water surface, the camera position is fixed in a vertical surface above the shooting down of the float. 随着水位的上下变化,浮子也会上下移动,继而与摄像机的相对距离也发生了变化,这种变化在所拍的视频图像中体现为浮子所占画面面积大小的变化。 Up and down with the water level changes, the float will move up and down, then the relative distance from the camera is also changed, this change reflects the change in the screen size of the area occupied by the float in the video image in the shot. 因此,通过计算图像中浮子面积的大小,可以判断出浮子与摄像机的相对距离,由于摄像机位置是固定的,因而可换算出水位。 Accordingly, by calculating the size of the image area of ​​the float, the float can be determined that the relative distance of the camera, because the camera position is fixed, which can be converted from water. (3)本实用新型的水质测量基本原理: 当水体采样图像灰度值(亮度值)越小时,可认为其水质越差,反之亦然。 (3) the basic principles of the present invention the water quality measurement: when the sample image gradation value (luminance value) is smaller, which may be considered worse quality, water and vice versa. 因而在水质检测时,可以通过对水体总体灰度的计算得出相应的水质结论。 Thus when the water quality detection can be obtained by calculating the corresponding quality of the overall conclusions of the gray water. 测量原理为:将拍摄器拍摄的水体图像和原先保存的标准样本进行比较,从而精确地测定水质。 Measurement principle: the image pickup for shooting water and a standard sample previously saved compared to accurately measure the water quality.

附图说明 BRIEF DESCRIPTION

[0008] 为了使本实用新型的内容更容易被清楚的理解,下面根据的具体实施例并结合附图,对本实用新型作进一步详细的说明,其中 [0008] In order to make the contents of the present invention to be clearly understood more easily, according to the following specific examples in conjunction with the accompanying drawings, more detailed description of the present invention for which

[0009] 图1为实施例中的红外照明系统的结构示意图; [0009] FIG. 1 is a schematic view of an infrared illumination system in the embodiment;

[0010] 图2为实施例中的水位、水质的监测终端的红外照明系统的电路框图。 [0010] FIG. 2 is a water level in the embodiment, a circuit block diagram of the infrared illumination system of water quality monitoring terminal.

具体实施方式 Detailed ways

[0011] 见图1-2,本实施例的水位、水质的监测终端的红外照明系统,包括:水位、水质的监测终端包括:垂直设于水中的管道2、活动设于该管道2中且密度小于水的球形浮子1、设于管道2顶端的用于拍摄所述球形浮子1的水位摄像机3、设于所述管道2-侧用于获取水质灰度识别用图像的水质摄像机4。 [0011] Figure 1-2, the water level of the embodiment according to the present embodiment, infrared illumination system monitors the water quality of the terminal, comprising: a water level, water quality monitoring terminal comprises: a vertical duct provided in the water 2, the activities provided in the duct 2 and less dense than water float of a spherical shape, provided at the top of the duct 2 for taking the spherical float level 3 of the camera 1, provided in the side duct for acquiring quality 2- gradation image recognition camera 4 with quality.

[0012] 该红外照明系统包括套设于水位摄像机3和水质摄像机4的镜头上的环状的红外照明电路板5,该红外照明电路板5上分布有红外发光二极管。 [0012] The infrared illumination system comprises an annular sleeve disposed on the level of the camera lens 4 of the camera 3 and water IR illumination board 5, the infrared light-emitting diodes distributed on the infrared illumination board 5.

[0013] 所述红外照明电路板5上,每8个红外发光二极管串接后与一调压电阻串联,然后连接至驱动电路的正负极。 [0013] In the infrared illumination board 5, each of the eight infrared light emitting diodes connected in series with a resistor in series regulator, and then connected to the drive circuit in reverse. 具体实施时,采用64个红外发光二极管,并构成8路串联的红外发光二极管并联至所述驱动电路的正负极,所述驱动电路与电源相连。 Specifically, utilizing an infrared light emitting diode 64 and infrared light emitting diodes constituting a series of 8 parallel to the positive and negative drive circuit, the drive circuit is connected to a power supply.

[0014] 所述水位摄像机3上的红外照明电路板5适于嵌入所述管道2中,以便全封闭安装。 [0014] The infrared camera illumination level on the circuit board 35 is adapted to be embedded in the conduit 2, to install closed.

[0015] 所述水位摄像机3和水质摄像机4分别通过第一、第二视频A/D模块与一中央处理单元该相连,该中央处理单元通过一视频D/A模块与一监视器相连,所述中央处理单元还连接有用于现场实时显示水质状况的数码管电路。 [0015] The water quality camera 4 and the camera 3 through the first, second video A / D module that is connected to a central processing unit, the central processing unit are connected by a video D / A module with a monitor, the said central processing unit is also connected to digital circuitry for real-time display field of water quality.

[0016] 所述水位摄像机3的镜头与所述管道2同中心轴设置。 [0016] The camera lens level 2 and the conduit 3 is provided with the central axis. 球形浮子1为标准圆球体。 1 is a standard spherical float sphere. 水质摄像机4的一侧设有光源。 Water side camera 4 is provided with a light source. 中央处理单元与一用于实现远程监控的RS232接口相连。 A central processing unit for remote monitoring of the RS232 connector.

[0017] 球形浮子1采用白色或类白色的轻质圆球,球体360度全对称可以确保浮子任意翻转运动而不影响到其在视频画面上的形态和大小,同时轻质的球体密度远小于水,其至少一半的体积在水面之上,可以让摄像机拍摄到整个球的截面积。 [0017] 1 A spherical float white or light white ball, the ball 360 degree symmetry ensures that the tilting movement of the float without any affect on the morphology and size of the video picture, while the ball is much less than the density of light water, at least half of its volume above the water, allowing the camera to shoot the entire cross-sectional area of ​​the ball. 外套深色PVC管,可以限制浮球的活动范围,利于拍摄。 Dark jacket PVC pipe, the float may limit the scope of activities, which will help shot. 摄像机四周布设红外led光源照射浮球,由于浮球和套管的颜色区别较大,浮球及其轮廓可明显被识别出来,为后期处理提供了方便。 Four weeks laid infrared camera float led light source, since the color difference between the sleeve and the larger float, float and profile can be clearly identified, it provides convenience for post-processing.

[0018] 水位摄像机3和水面的距离与所摄浮球的面积并不呈线性关系,而是一个由陡变缓的曲线,即浮球距摄像机越近,相同的水位变化,浮球面积变化越大。 [0018] level and area of ​​the camera 3 and the distance from the surface of the float is not ingested linear, but rather a steep slowing down the curve, i.e. from the camera closer float, the same water level changes, the float area change Big. 因而该水位测量方法的精度也是不恒定的,在测量范围较小时才能保证合适的精度,故适用于水位变化不大的水域(如流动性不大的湖泊,高度有限的蓄水池)。 Thus the accuracy of the water level measuring method is not constant in the measuring range is small in order to ensure proper accuracy, it is applicable to small changes in water level (e.g. illiquid lakes, limited reservoir height).

[0019] 在实际使用中,加大管径和浮球直径,同时提高摄像机像素,并加上一些误差修正手段,可以获得更高的测量精度和更大的量程。 [0019] In actual use, to increase the diameter and the diameter of the float, while increasing the camera pixels, adding some error correction means, a higher accuracy and greater range. 当然,使用这种方法事先需获得摄像机的位置参数,同时需建立水位和对应像素面积的数据库,在各标定数据间的水位可采用一定算法进行计算以获得。 Of course, this method required to obtain in advance the position of camera parameters, while the water and the need to establish a database corresponding to the pixel area, the algorithm must be employed in the water between the respective calculated to obtain calibration data.

[0020] 本实施例的水质检测方法,采用机器视觉的手段测量浑浊度、污染物、COD等指标, [0020] The water quality detection method of the present embodiment employs machine vision turbidity measurement means, pollutants, COD and other indicators,

4该方法的原理为:将拍摄器拍摄的水体图像和原先保存的标准样本进行比较,从而精确地测定水质。 4 is a principle of the method: the image pickup for shooting water and a standard sample previously saved compared to accurately measure the water quality.

[0021] 与所述中央处理单元采用FPGA,采用标准PAL视频的摄像头采集图像,光源为高功率红外发光二极管阵列,视频A/D模块和视频D/A模块分别选择NXP SAA7114和SAA7121。 [0021] with the central processing unit uses the FPGA, PAL standard video camera using the captured image, the light source is a high power infrared light emitting diode array, a video A / D module and video D / A module were selected NXP SAA7114 and SAA7121. 在数据输出方面,现场可通过四位数码管显示水位和水质状况,同时还设计了通信模块,以供数据的对外发送。 In the data output, the level and quality display field condition by four digit, also designed communication module for transmitting data outside.

[0022] 水质摄像头采集到的动态模拟视频,采用CVBS方式传输到视频A/D模块,由其转换为标准的ITU. 656数字视频流,FPGA负责从数字视频流中抓取有效图像并作处理,以得出水位参考值或水质参考值,并将该值通过通信模块经由RS232接口输出。 [0022] Water collected dynamic camera analog video transmitted to the video mode using CVBS A / D module, is converted to a standard by ITU. 656 digital video stream, FPGA responsible crawl valid image from a digital video stream and processed , to derive a reference value or quality level reference value, and this value is output through the communication module via the RS232 interface. 视频D/A模块和监视器用于安装和调试时的画面监控,四位数码管可现场显示水位参考值或水质参考值。 Video D / A module and a monitor screen for monitoring the time of installation and commissioning, four digital display Field quality level reference value or reference value.

Claims (1)

1. 一种水位、水质的监测终端的红外照明系统,水位、水质的监测终端包括:垂直设于水中的管道、活动设于该管道中且密度小于水的球形浮子、设于管道顶端的用于拍摄所述球形浮子的水位摄像机、设于所述管道一侧用于获取水质灰度识别用图像的水质摄像机;其特征在于:该红外照明系统包括套设于水位摄像机和水质摄像机的镜头上的环状的红外照明电路板,该红外照明电路板上分布有红外发光二极管。 A water level, an infrared illumination system monitoring terminal for water quality, water, water quality monitoring terminal comprises: a vertical duct provided in the water, disposed in the conduit activity less dense than water and a spherical float disposed on top of the pipes shooting the spherical float level cameras, disposed on the side of the pipe for acquiring quality gradation recognition camera image quality; characterized in that: the infrared illumination system is provided comprising a sleeve water quality camera and the camera lens cyclic infrared illumination board, the circuit board infrared illumination distribution of infrared light emitting diode.
CN 201120379453 2011-10-09 2011-10-09 Infrared illumination system of monitoring terminal for water level and water quality CN202231810U (en)

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