CN105812736A - Self-adjustment Pan/Tilt/Zoom camera remote intelligent control system and control method - Google Patents

Self-adjustment Pan/Tilt/Zoom camera remote intelligent control system and control method Download PDF

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CN105812736A
CN105812736A CN201610162338.6A CN201610162338A CN105812736A CN 105812736 A CN105812736 A CN 105812736A CN 201610162338 A CN201610162338 A CN 201610162338A CN 105812736 A CN105812736 A CN 105812736A
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pan
tilt
camera
gimbal
center
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陈双叶
王善喜
郑楷
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Beijing University of Technology
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Beijing University of Technology
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/67Focus control based on electronic image sensor signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/14Picture signal circuitry for video frequency region
    • H04N5/144Movement detection

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Abstract

本发明公开了自调节式云台摄像头远程智能控制系统及其控制方法,属于远程监控系统中计算机视觉技术领域,系统对采集到的视频序列图像进行预处理及运动目标检测等,使监控画面更加清晰。通过Kalman滤波器与Camshift算法相结合的方法对每帧图像中的监控目标进行锁定并记录其位置坐标,判断该坐标是否离开屏幕的约束区域,根据判断结果,决定自动跟踪模型是否对目标进行自动跟踪,通过比较云台水平方向转动时间与垂直方向转动时间,确定优先在哪个方向调节。根据目标显示尺寸与规定尺寸的差值与阈值的比较,进行镜头的自动变倍,并能用手机对摄像头及云台进行远程控制。本发明实时性更好,从而提高了监控系统的性能。

The invention discloses a remote intelligent control system of a self-adjusting pan-tilt camera and a control method thereof, which belong to the technical field of computer vision in a remote monitoring system. clear. Through the method of combining Kalman filter and Camshift algorithm, the monitoring target in each frame image is locked and its position coordinates are recorded, and it is judged whether the coordinates leave the restricted area of the screen. According to the judgment result, it is determined whether the automatic tracking model automatically tracks the target. Tracking, by comparing the horizontal rotation time of the gimbal with the vertical rotation time, determine which direction to adjust in priority. According to the comparison between the difference between the target display size and the specified size and the threshold value, the lens can be automatically zoomed in, and the camera and the pan/tilt can be remotely controlled with a mobile phone. The invention has better real-time performance, thereby improving the performance of the monitoring system.

Description

自调节式云台摄像头远程智能控制系统及其控制方法Remote intelligent control system and control method for self-adjusting pan-tilt camera

技术领域technical field

本发明涉及一种自调节式云台摄像头远程智能控制系统及其控制方法,属于云台摄像头远程监控系统中计算机视觉技术领域。The invention relates to a self-adjusting remote intelligent control system of a pan-tilt camera and a control method thereof, belonging to the technical field of computer vision in a remote monitoring system of a pan-tilt camera.

背景技术Background technique

传统的监控摄像头大多数位置固定,监控范围有限,容易出现监控死角。随着技术的发展,出现了云台摄像头监控系统。监控人员通过手动操作键盘来调节云台转动和镜头的变倍,这些操作往往滞后于目标的运动,实时性较差。监控人员需长时间盯看着屏幕,容易造成人为误差。传统的监控系统多为备案取证,并没有有效的防止意外的发生。监控对象距离镜头的远近、特征部位的聚焦、画面的清晰程度等都影响着案件的侦破进度。传统的监控系统大多数都需要人员在监控室进行监控,并没有实现真正意义上的远程监控。Most of the traditional surveillance cameras are fixed in position, with a limited monitoring range and prone to monitoring blind spots. With the development of technology, PTZ camera monitoring system has appeared. The monitoring personnel adjust the rotation of the pan and tilt and the zoom of the lens by manually operating the keyboard. These operations often lag behind the movement of the target, and the real-time performance is poor. Monitoring personnel need to stare at the screen for a long time, which is easy to cause human error. The traditional monitoring system is mostly for record and evidence collection, and it does not effectively prevent accidents from happening. The distance between the monitored object and the lens, the focus of the characteristic parts, and the clarity of the picture all affect the progress of the case detection. Most of the traditional monitoring systems require personnel to monitor in the monitoring room, and have not realized remote monitoring in the true sense.

发明内容Contents of the invention

根据上述提出的问题,本发明的目的是:提供一种自调节式云台摄像头远程智能控制方法。该系统的核心是在传统的监控摄像头的基础上,增加了云台及镜头的智能控制。通过得到监控目标在屏幕上的质心位置坐标,计算是否超出约束区域,判断是否调节云台的转动。监控目标尺寸大小与规定尺寸值的差值的绝对值与面积阈值比较,判断镜头是否变倍。当自动调节系统出现故障时,可以通过手机无线连接,访问PC机的监控视频,远程手动调节云台和摄像头,提高监控系统的实时性,准确性,对采集到视频序列图像进行预处理,使画面更加清晰,这是传统监控系统不具备的。According to the problems raised above, the object of the present invention is to provide a remote intelligent control method for a self-adjusting pan-tilt camera. The core of the system is based on the traditional surveillance camera, adding intelligent control of the pan/tilt and lens. By obtaining the position coordinates of the center of mass of the monitoring target on the screen, calculate whether it exceeds the restricted area, and judge whether to adjust the rotation of the pan/tilt. The absolute value of the difference between the monitored target size and the specified size value is compared with the area threshold to determine whether the lens is zoomed. When the automatic adjustment system fails, you can access the monitoring video of the PC through the wireless connection of the mobile phone, remotely manually adjust the pan/tilt and the camera, improve the real-time performance and accuracy of the monitoring system, and preprocess the collected video sequence images, so that The picture is clearer, which is not available in traditional monitoring systems.

本发明方法是基于智能远程控制系统,所述的智能远程控制装置主要包括云台摄像机、视频转换电路、PC机、串口转换电路、Android系统手机控制模块;云台摄像机用于拍摄监控区域视频,该云台摄像机由摄像机、变焦镜头、云台、解码器、无线通信模块组成,与视频转换电路连接。The inventive method is based on the intelligent remote control system, and the described intelligent remote control device mainly includes a pan-tilt camera, a video conversion circuit, a PC, a serial port conversion circuit, and an Android system mobile phone control module; the pan-tilt camera is used to shoot the monitoring area video, The pan-tilt camera is composed of a camera, a zoom lens, a pan-tilt, a decoder, and a wireless communication module, and is connected with a video conversion circuit.

视频转换电路用于将云台摄像头的模拟视频转换为数字视频,视频转换电路与摄像头和计算机连接。The video conversion circuit is used to convert the analog video of the pan-tilt camera into digital video, and the video conversion circuit is connected with the camera and the computer.

PC机用于观看监控视频,基于OpenCV平台,通过Camshift算法对运动目标跟踪,利用Kalman滤波器预测补偿减小跟踪误差,根据云台摄像机反馈的数据进行分析处理,控制云台转动和镜头变倍,使监控目标实时以合适的尺寸显示在屏幕中间,与视频转换电路与串口转换电路连接。The PC is used to watch the surveillance video. Based on the OpenCV platform, the moving target is tracked through the Camshift algorithm, the Kalman filter is used to predict and compensate to reduce the tracking error, and the data fed back by the pan-tilt camera is analyzed and processed to control the pan-tilt rotation and lens zoom. , so that the monitoring target is displayed in the middle of the screen with a suitable size in real time, and is connected with the video conversion circuit and the serial port conversion circuit.

串口转换电路用于将计算机的控制指令传于云台摄像头,串口转换电路与计算机和云台摄像头连接。The serial port conversion circuit is used for transmitting the control command of the computer to the pan-tilt camera, and the serial port conversion circuit is connected with the computer and the pan-tilt camera.

Android系统手机控制模块用于远程手动控制云台摄像头,通过无线通信,实时访问PC机的监控视频,并通过无线连接实时控制云台摄像头的云台转动和镜头变倍,通过摄像头其他辅助功能模块,使监控效果更好。The mobile phone control module of the Android system is used for remote manual control of the PTZ camera, real-time access to the monitoring video of the PC through wireless communication, and real-time control of the PTZ rotation and lens zoom of the PTZ camera through wireless connection, through other auxiliary function modules of the camera , so that the monitoring effect is better.

本发明提供的一种云台摄像头远程智能控制方法,具体包括以下步骤:A remote intelligent control method for a pan-tilt camera provided by the present invention specifically comprises the following steps:

步骤一:基于OpenCV平台,计算机对采集到的视频序列图像进行预处理以及利用帧差法检测运动目标。Step 1: Based on the OpenCV platform, the computer preprocesses the collected video sequence images and uses the frame difference method to detect moving targets.

步骤二:计算机根据Camshift算法对监控目标进行跟踪定位,利用Kalman滤波器进行预测补偿,得到监控目标质心坐标(X,Y),判断质心坐标是否在以视域中心坐标(D1/2,D2/2)为圆心,半径为R的圆形约束区域内,如果超出约束区域,云台进行调节;否则,云台静止不动,跳转到步骤五,其中,图像的分辨率为D1*D2,R为预设阈值。Step 2: The computer tracks and locates the monitoring target according to the Camshift algorithm, uses the Kalman filter to predict and compensate, and obtains the coordinates (X, Y) of the center of mass of the monitoring target, and judges whether the coordinates of the center of mass are in the coordinates of the center of the field of view (D1/2, D2/ 2) is the center of the circle and within the circular constrained area with a radius of R, if it exceeds the constrained area, the gimbal will be adjusted; otherwise, the gimbal will stand still and skip to step 5, where the resolution of the image is D1*D2, R is the preset threshold.

步骤三:云台进行调节时,如果自动调节系统功能正常,云台自动调节跟踪监控目标;否则,通过手机无线通信,利用云台控制功能界面发送指令,通过手机远程手动控制云台转动,完成跟踪任务。其中,云台控制量为:Step 3: When the pan/tilt is adjusted, if the automatic adjustment system functions normally, the pan/tilt will automatically adjust and track the monitoring target; otherwise, through the mobile phone wireless communication, use the pan/tilt control function interface to send instructions, and remotely manually control the pan/tilt rotation through the mobile phone to complete Track tasks. Among them, the PTZ control amount is:

水平方向角度: Horizontal angle:

垂直方向角度: Vertical angle:

其中,X为监控目标水平方向质心坐标,Y为监控目标垂直方向质心坐标,θ1为摄像头水平视角的一半,为摄像头垂直视角的一半。Among them, X is the coordinates of the center of mass in the horizontal direction of the monitoring target, Y is the coordinates of the center of mass in the vertical direction of the monitoring target, θ1 is half of the horizontal viewing angle of the camera, It is half of the vertical angle of view of the camera.

步骤四:云台转动时,根据水平方向转动时间T1与垂直方向转动时间T2长短判断优先向哪个方向转动。T1≥T2时,云台垂直方向优先转动;否则,云台水平方向优先转动。转动时间公式为:Step 4: When the gimbal rotates, judge which direction to rotate in priority according to the length of the horizontal rotation time T1 and the vertical rotation time T2. When T1≥T2, the gimbal rotates in the vertical direction first; otherwise, the gimbal rotates in the horizontal direction first. The rotation time formula is:

水平方向转动时间:T1=α/ν1Horizontal rotation time: T1=α/ν1

垂直方向转动时间:T2=β/ν2Vertical rotation time: T2=β/ν2

其中,ν1为云台水平方向转动速度,ν2为云台垂直方向转动速度。Among them, ν1 is the rotation speed of the gimbal in the horizontal direction, and ν2 is the rotation speed of the gimbal in the vertical direction.

步骤五:监控目标在屏幕中的尺寸大小Α与规定的合适尺寸大小Β的差值的绝对值Ε与规定的阈值Κ比较,当Ε≥Κ时,镜头变倍;否则,镜头不变倍。其中:Step 5: the absolute value E of the difference between the size A of the monitoring target in the screen and the prescribed suitable size B is compared with the prescribed threshold K, and when E≥K, the lens zooms; otherwise, the lens does not zoom. in:

Α为跟踪窗口面积,可以根据跟踪算法计算得到;Α is the tracking window area, which can be calculated according to the tracking algorithm;

图像的分辨率为D1*D2; The resolution of the image is D1*D2;

Ε=|Α-Β|;Ε=|Α-Β|;

其中K为预先设置的面积阈值,以像素的平方为单位。 Wherein K is a preset area threshold, and the unit is the square of the pixel.

步骤六:镜头变倍时,如果自动调节系统功能正常,镜头接收串口发出的指令,自动变倍,直到监控目标以规定的合适尺寸出现在屏幕上;否则,通过手机无线通信,利用调焦控制功能界面发送指令,远程手动控制镜头变倍。然后,跳转到步骤一,循环往复。Step 6: When zooming the lens, if the automatic adjustment system is functioning normally, the lens receives the command from the serial port and automatically zooms until the monitoring target appears on the screen with the specified appropriate size; otherwise, through the wireless communication of the mobile phone, use the focus control The functional interface sends commands to remotely and manually control the zoom of the lens. Then, jump to step 1, and repeat.

有益效果Beneficial effect

本发明提出的自调节式球型摄像头智能控制装置及控制方法,提高了监控系统的实时性,准确性,视频序列图像预处理算法使监控画面更加清晰,当自动调节系统出现故障时,通过手机远程手动调节云台摄像头,完成对目标的跟踪监控,使监控系统更加科学化,人性化。The self-adjusting spherical camera intelligent control device and control method proposed by the present invention improve the real-time performance and accuracy of the monitoring system, and the video sequence image preprocessing algorithm makes the monitoring picture clearer. Remotely adjust the PTZ camera manually to complete the tracking and monitoring of the target, making the monitoring system more scientific and humanized.

附图说明Description of drawings

图1智能远程监控系统框图。Figure 1 block diagram of intelligent remote monitoring system.

图2Camshift算法与Kalman滤波器结合算法流程框图。Fig. 2 Flowchart of Camshift algorithm combined with Kalman filter algorithm.

图3监控目标坐标示意图。Figure 3 Schematic diagram of monitoring target coordinates.

图4云台摄像机智能控制系统框图。Fig. 4 Block diagram of the intelligent control system of the PTZ camera.

图5云台摄像机功能主页面。Figure 5 The main page of the PTZ camera function.

图6云台转动控制功能界面。Figure 6 PTZ rotation control function interface.

图7调焦控制功能界面。Figure 7 Focus control function interface.

图8-图15云台摄像头其他辅助功能控制界面。Figure 8-15 Control interface of other auxiliary functions of the PTZ camera.

具体实施方式detailed description

参考图1,图2,PC机正常运行,基于OpenCV平台,Camshift算法和Kalman滤波器相结合的跟踪算法实时运行,等待云台摄像头拍摄的视频的传入;打开云台摄像机,视频资源经过视频转换电路,传递到PC机里,用鼠标选择要跟踪的目标,利用PC机运行的跟踪算法对目标实时跟踪。Referring to Figure 1 and Figure 2, the PC is running normally, based on the OpenCV platform, the tracking algorithm combined with the Camshift algorithm and the Kalman filter is running in real time, waiting for the incoming video from the PTZ camera; The conversion circuit is transmitted to the PC, the target to be tracked is selected with the mouse, and the target is tracked in real time by the tracking algorithm run by the PC.

参考图3,图4,利用跟踪算法得到得到监控目标质心坐标(X,Y),判断质心坐标是否在以视域中心坐标(D1/2,D2/2)为圆心,半径为R的圆形约束区域内,如果超出约束区域,云台进行调节,当自动控制系统正常时,PC机通过串口转换电路,向云台自动发送指令,云台自动转动调节,当目标质心坐标显示在约束区域内时,PC机停止向云台发送转动指令,云台停止转动;如果没超出约束区域,云台静止不动,其中,图像的分辨率为D1*D2,R为预设阈值。当云台需要转动调节时,其转动方向分为8种情况:Referring to Figure 3 and Figure 4, use the tracking algorithm to obtain the coordinates (X, Y) of the center of mass of the monitoring target, and determine whether the coordinates of the center of mass are in a circle with the coordinates of the center of the field of view (D1/2, D2/2) as the center and the radius R In the restricted area, if it exceeds the restricted area, the gimbal will adjust. When the automatic control system is normal, the PC will automatically send instructions to the gimbal through the serial port conversion circuit, and the gimbal will automatically rotate and adjust. When the coordinates of the center of mass of the target are displayed in the restricted area , the PC stops sending rotation instructions to the gimbal, and the gimbal stops rotating; if it does not exceed the restricted area, the gimbal stands still, where the resolution of the image is D1*D2, and R is the preset threshold. When the gimbal needs to be rotated and adjusted, its rotation direction is divided into 8 situations:

目标质心与视域中心水平坐标差:Δx=X-D1/2The horizontal coordinate difference between the center of mass of the target and the center of the field of view: Δx=X-D1/2

目标质心与视域中心竖直坐标差:Δy=Y-D2/2The vertical coordinate difference between the center of mass of the target and the center of the field of view: Δy=Y-D2/2

(1)当Δx>R且|Δy|≤R时,云台水平向右运动;(1) When Δx>R and |Δy|≤R, the gimbal moves horizontally to the right;

(2)当Δx>R且Δy<-R时,云台向右上方运动;(2) When Δx>R and Δy<-R, the gimbal moves to the upper right;

(3)当|Δx|≤R且Δy<-R时,云台垂直向上运动;(3) When |Δx|≤R and Δy<-R, the gimbal moves vertically upwards;

(4)当Δx<-R且Δy<-R时,云台向左上方运动;(4) When Δx<-R and Δy<-R, the gimbal moves to the upper left;

(5)当Δx<-R且|Δy|≤R时,云台水平向左运动;(5) When Δx<-R and |Δy|≤R, the gimbal moves horizontally to the left;

(6)当Δx<-R且Δy>R时,云台向左下方运动;(6) When Δx<-R and Δy>R, the gimbal moves downward to the left;

(7)当|Δx|≤R且Δy>R时,云台垂直向下运动;(7) When |Δx|≤R and Δy>R, the gimbal moves vertically downward;

(8)当Δx>R且Δy>R时,云台向右下方运动;(8) When Δx>R and Δy>R, the gimbal moves downward to the right;

其中,云台控制量为:Among them, the PTZ control amount is:

水平方向角度: Horizontal angle:

垂直方向角度: Vertical angle:

其中,X为监控目标水平方向质心坐标,Y为监控目标垂直方向质心坐标,θ1为摄像头水平视角的一半,为摄像头垂直视角的一半。Among them, X is the coordinates of the center of mass in the horizontal direction of the monitoring target, Y is the coordinates of the center of mass in the vertical direction of the monitoring target, θ1 is half of the horizontal viewing angle of the camera, It is half of the vertical angle of view of the camera.

当云台需要在水平和垂直方向都转动时,根据水平方向转动时间T1与垂直方向转动时间T2长短判断优先向哪个方向转动。T1≥T2时,云台垂直方向优先转动;否则,云台水平方向优先转动。转动时间公式为:When the pan/tilt needs to rotate both in the horizontal direction and the vertical direction, it is judged which direction to rotate in priority according to the length of the horizontal direction rotation time T1 and the vertical direction rotation time T2. When T1≥T2, the gimbal rotates in the vertical direction first; otherwise, the gimbal rotates in the horizontal direction first. The rotation time formula is:

水平方向转动时间:T1=α/ν1Horizontal rotation time: T1=α/ν1

垂直方向转动时间:T2=β/ν2Vertical rotation time: T2=β/ν2

其中,ν1为云台水平方向转动速度,ν2为云台垂直方向转动速度。Among them, ν1 is the rotation speed of the gimbal in the horizontal direction, and ν2 is the rotation speed of the gimbal in the vertical direction.

参考图4,图6,当云台自动控制系统出现故障时,手机进行无线连接,实时查看PC机的监控视频,并通过云台控制功能界面,手动控制云台的转动方向,实现对监控目标跟踪,使目标尽量显示在监控屏幕中央。Referring to Figure 4 and Figure 6, when the pan/tilt automatic control system fails, the mobile phone is connected wirelessly to view the surveillance video of the PC in real time, and through the pan/tilt control function interface, manually control the rotation direction of the pan/tilt to achieve the monitoring target Tracking, so that the target is displayed in the center of the monitoring screen as much as possible.

参考图4,图5,图7,由于监控运动目标与云台摄像机的距离时刻在变化中,监控目标在显示屏幕上的尺寸也在不断变化中,需要实时调焦,使目标以合适的尺寸显示在监控屏幕中央。监控目标在屏幕中的尺寸大小Α与规定的合适尺寸大小Β的差值的绝对值Ε与规定的阈值Κ比较,当Ε≥Κ时,镜头变倍;否则,镜头不变倍。其中:Referring to Figure 4, Figure 5, and Figure 7, since the distance between the monitoring moving target and the PTZ camera is constantly changing, the size of the monitoring target on the display screen is also constantly changing, and real-time focusing is required to make the target at an appropriate size Displayed in the center of the monitoring screen. The absolute value E of the difference between the size A of the monitoring target in the screen and the prescribed suitable size B is compared with the prescribed threshold K, and when E≥K, the zoom of the lens is changed; otherwise, the zoom of the lens does not change. in:

Α为跟踪窗口面积,可以根据跟踪算法计算得到;Α is the tracking window area, which can be calculated according to the tracking algorithm;

图像的分辨率为D1*D2; The resolution of the image is D1*D2;

Ε=|Α-Β|;Ε=|Α-Β|;

其中K为预先设置的面积阈值,以像素的平方为单位。 Wherein K is a preset area threshold, and the unit is the square of the pixel.

镜头变倍时,如果自动调节系统功能正常,镜头接收串口发出的指令,自动变倍,直到监控目标以规定的合适尺寸出现在屏幕上,此时,PC机停止向镜头发送调焦指令,调焦过程结束;如果自动调节系统功能故障,通过手机无线通信,利用调焦控制功能界面发送指令,远程手动控制镜头变倍。在手动调焦控制功能界面中,分为快速调焦和细微调焦两种方式,利用滑动条左右滑动来实现调焦方式,为快速调焦方式;利用按钮实现调焦方式,为细微调焦方式,两者结合,更好的实现调焦控制,使监控目标以理想的尺寸大小显示在屏幕中央。When the lens zooms, if the automatic adjustment system functions normally, the lens receives the command from the serial port and automatically zooms until the monitoring target appears on the screen with the specified appropriate size. At this time, the PC stops sending the focusing command to the lens and adjusts The focusing process is over; if the function of the automatic adjustment system fails, through the wireless communication of the mobile phone, use the focus control function interface to send instructions to remotely and manually control the zoom of the lens. In the interface of the manual focus control function, there are two methods: quick focus and fine focus. Use the slide bar to slide left and right to realize the focus method, which is the fast focus method; use the buttons to realize the focus method, which is the fine focus method. The combination of the two can better realize the focus control, so that the monitoring target can be displayed in the center of the screen with an ideal size.

基于Android系统的App软件设计如下:The App software design based on the Android system is as follows:

点击App软件,自动进入摄像头调节主界面,包括:摄像头开关、摄像头功能设置、光圈控制、自动曝光模式、白平衡、摄像头聚焦、摄像头调焦、存储预设及宽动态、亮度调节、双滤光片切换器;底部按钮:首页、聚焦、调焦、亮度、曝光补偿。其中,在此主页面中,点击手机界面上的返回按钮可退出软件。各个功能界面介绍如下:Click on the App software to automatically enter the main interface of camera adjustment, including: camera switch, camera function setting, aperture control, automatic exposure mode, white balance, camera focus, camera focus, storage preset and wide dynamic range, brightness adjustment, double filter film switcher; bottom buttons: Home, Focus, Focus, Brightness, Exposure Compensation. Among them, in this main page, click the return button on the mobile phone interface to exit the software. Each functional interface is introduced as follows:

1、摄像头功能设置:防抖模式菜单选择(由下拉菜单组成:防抖模式开、防抖模式关、图像保持,共4个选项级别);图像效果菜单选择(关、负片、黑白图像,共3个选项级别);图像左右反相开关;图像冻结开关;图像上下翻转开关;寄存器监控模式-72(由下拉菜单组成:全高清60P(1920*1080P/60fps)、全高清50P(1920*1080P/50fps)、全高清60I(1920*1080I/60fps)、全高清50I(1920*1080I/50fps)、高清30P(1280*720P/30fps)、高清25P(1280*720P/25fps),共6个选项级别)。1. Camera function setting: anti-shake mode menu selection (composed of drop-down menus: anti-shake mode on, anti-shake mode off, image hold, a total of 4 option levels); image effect menu selection (off, negative film, black and white image, total 3 option levels); image left and right reverse phase switch; image freeze switch; /50fps), Full HD 60I (1920*1080I/60fps), Full HD 50I (1920*1080I/50fps), HD 30P (1280*720P/30fps), HD 25P (1280*720P/25fps), a total of 6 options level).

2、光圈控制:高灵敏度模式开关;高分辨率模式开关;降噪模式菜单选择(关、1、2、3、4、5,共6个选项级别);光圈调节(滑动条控制调节,并把调节结果以百分数形式显示出来);伽玛调节(滑动条控制调节,并把调节结果以百分数形式显示出来)。2. Aperture control: high-sensitivity mode switch; high-resolution mode switch; noise reduction mode menu selection (off, 1, 2, 3, 4, 5, a total of 6 option levels); aperture adjustment (sliding bar control adjustment, and Display the adjustment result as a percentage); Gamma adjustment (the slider controls the adjustment and displays the adjustment result as a percentage).

3、自动曝光模式:自动曝光模式选择(由下拉菜单组成:全自动、快门优先、光圈优先、手动模式,共4个选项级别);光圈调节(滑动条控制调节,并把调节结果以百分数形式显示出来);增益调节(滑动条控制调节,并把调节结果以百分数形式显示出来);快门调节(滑动条控制调节,并把调节结果以百分数形式显示出来,并有自动慢快门开关);慢自动曝光(滑动条控制调节,并把调节结果以百分数形式显示出来,并有背光开关)。3. Automatic exposure mode: automatic exposure mode selection (composed of drop-down menus: fully automatic, shutter priority, aperture priority, manual mode, a total of 4 option levels); aperture adjustment (sliding bar control adjustment, and the adjustment result is in the form of a percentage display); gain adjustment (slider control adjustment, and display the adjustment result as a percentage); shutter adjustment (slider control adjustment, and display the adjustment result as a percentage, and an automatic slow shutter switch); slow Automatic exposure (the slide bar controls the adjustment, and the adjustment result is displayed as a percentage, and there is a backlight switch).

4、白平衡:白平衡模式选择(由下拉菜单组成:自动白平衡、自动触发跟踪、室内白平衡、室外白平衡、一键触发白平衡、手动白平衡、自动户外白平衡、自动钠灯白平衡、手动钠灯白平衡,共9个选项菜单);红色增益(滑动条控制调节,并把调节结果以百分数形式显示出来);蓝色增益(滑动条控制调节,并把调节结果以百分数形式显示出来);一键触发按钮。4. White balance: white balance mode selection (composed of drop-down menus: automatic white balance, automatic trigger tracking, indoor white balance, outdoor white balance, one-key trigger white balance, manual white balance, automatic outdoor white balance, automatic sodium lamp white balance , manual sodium lamp white balance, a total of 9 option menus); red gain (control the adjustment with the slide bar, and display the adjustment result as a percentage); blue gain (control the adjustment with the slide bar, and display the adjustment result as a percentage ); one-key trigger button.

5、摄像头聚焦:自动聚焦模式开关;自动聚焦模式选择(由下拉菜单组成:标准模式、间隔自动对焦、触发调焦,共3个选项级别);自动聚焦桑斯选择(由下拉菜单组成:标准模式、低,共2个选项级别);手动聚焦(滑动条控制调节,并把调节结果以百分数形式显示出来);近距极限(滑动条控制调节,并把调节结果以百分数形式显示出来)。5. Camera focus: auto focus mode switch; auto focus mode selection (composed of drop-down menu: standard mode, interval auto focus, trigger focus, a total of 3 option levels); auto focus Sens selection (composed of drop-down menu: standard mode, low, a total of 2 option levels); manual focus (control the adjustment with the slide bar, and display the adjustment result as a percentage); Close Limit (control the adjustment with the slide bar, and display the adjustment result as a percentage).

6、摄像头调焦:调焦(滑动条控制调节,并把调节结果以百分数形式显示出来);数字调焦(滑动条控制调节,并把调节结果以百分数形式显示出来);并有联调模式和数字调焦选项。6. Camera focus: focus (slider control adjustment, and display the adjustment result as a percentage); digital focus (slider control adjustment, and display the adjustment result as a percentage); and joint debugging mode and digital zoom options.

7、存储预设及宽动态:设置菜单选择(由下拉菜单组成:0、1、2、3、4、5、C,共7个选项级别);回放功能菜单选择(由下拉菜单组成:0、1、2、3、4、5、C,共7个选项级别);恢复出厂设置选择(由下拉菜单组成:0、1、2、3、4、5、C,共7个选项级别);宽动态菜单选择(由下拉菜单组成:开、关、自动、固定比率、记录数字视频)。7. Storage preset and wide dynamic range: setting menu selection (composed of drop-down menus: 0, 1, 2, 3, 4, 5, C, a total of 7 option levels); playback function menu selection (composed of drop-down menus: 0 . ; WDR menu selection (composed of drop-down menus: On, Off, Auto, Fixed Ratio, Record Digital Video).

8、亮度调节:自动调节亮度开关;手动调节亮度(滑动条控制调节,并把调节结果以百分数形式显示出来)。8. Brightness adjustment: automatically adjust the brightness switch; manually adjust the brightness (the slide bar controls the adjustment, and the adjustment result is displayed in the form of a percentage).

9、双滤光片切换器:双滤光片切换模式开关;红外聚焦修正模式开关;双滤光片自动切换开关;双滤光片自动切换报警开关。9. Double filter switcher: double filter switch mode switch; infrared focus correction mode switch; double filter automatic switch switch; double filter automatic switch alarm switch.

10、曝光补偿调节:曝光补偿调节开关;手动调节曝光补偿(滑动条控制调节,并把调节结果以百分数形式显示出来)。10. Exposure compensation adjustment: Exposure compensation adjustment switch; manual adjustment of exposure compensation (the slide bar controls the adjustment, and the adjustment result is displayed in the form of a percentage).

参考图8-图15,为云台摄像头其他辅助功能界面,利用不同的功能界面相互配合,使画面更清晰,监控效果更好。Refer to Figure 8-15, which are the other auxiliary function interfaces of the PTZ camera, using different functional interfaces to cooperate with each other to make the picture clearer and the monitoring effect better.

Claims (3)

1.自调节式云台摄像头远程智能控制系统,其特征在于:该控制系统主要包括云台摄像机、视频转换电路、PC机、串口转换电路、Android系统手机控制模块;云台摄像机用于拍摄监控区域视频,该云台摄像机由摄像机、变焦镜头、云台、解码器、无线通信模块组成,与视频转换电路连接;1. The remote intelligent control system of the self-adjusting pan-tilt camera is characterized in that: the control system mainly includes a pan-tilt camera, a video conversion circuit, a PC, a serial port conversion circuit, and an Android system mobile phone control module; the pan-tilt camera is used for shooting and monitoring Regional video, the pan-tilt camera is composed of a camera, a zoom lens, a pan-tilt, a decoder, and a wireless communication module, and is connected with a video conversion circuit; 视频转换电路用于将云台摄像头的模拟视频转换为数字视频,视频转换电路与摄像头和计算机连接;The video conversion circuit is used to convert the analog video of the PTZ camera into a digital video, and the video conversion circuit is connected with the camera and the computer; PC机用于观看监控视频,基于OpenCV平台,通过Camshift算法对运动目标跟踪,利用Kalman滤波器预测补偿减小跟踪误差,根据云台摄像机反馈的数据进行分析处理,控制云台转动和镜头变倍,使监控目标实时以合适的尺寸显示在屏幕中间,与视频转换电路与串口转换电路连接;The PC is used to watch the surveillance video. Based on the OpenCV platform, the moving target is tracked through the Camshift algorithm, the Kalman filter is used to predict and compensate to reduce the tracking error, and the data fed back by the pan-tilt camera is analyzed and processed to control the pan-tilt rotation and lens zoom. , so that the monitoring target is displayed in the middle of the screen with a suitable size in real time, and connected with the video conversion circuit and the serial port conversion circuit; 串口转换电路用于将计算机的控制指令传于云台摄像头,串口转换电路与计算机和云台摄像头连接;The serial port conversion circuit is used to transmit the control instructions of the computer to the pan-tilt camera, and the serial port conversion circuit is connected with the computer and the pan-tilt camera; Android系统手机控制模块用于远程手动控制云台摄像头,通过无线通信,实时访问PC机的监控视频,并通过无线连接实时控制云台摄像头的云台转动和镜头变倍,通过摄像头其他辅助功能模块,使监控效果更好。The mobile phone control module of the Android system is used for remote manual control of the PTZ camera, real-time access to the monitoring video of the PC through wireless communication, and real-time control of the PTZ rotation and lens zoom of the PTZ camera through wireless connection, through other auxiliary function modules of the camera , so that the monitoring effect is better. 2.利用权利要求1所述系统进行的自调节式云台摄像头远程智能控制方法,其特征在于:具体包括以下步骤,2. utilize the self-adjusting formula pan-tilt camera remote intelligent control method that the system of claim 1 is carried out, it is characterized in that: specifically comprise the following steps, 步骤一:基于OpenCV平台,计算机对采集到的视频序列图像进行预处理以及利用帧差法检测运动目标;Step 1: Based on the OpenCV platform, the computer preprocesses the collected video sequence images and uses the frame difference method to detect moving targets; 步骤二:计算机根据Camshift算法对监控目标进行跟踪定位,利用Kalman滤波器进行预测补偿,得到监控目标质心坐标(X,Y),判断质心坐标是否在以视域中心坐标(D1/2,D2/2)为圆心,半径为R的圆形约束区域内,如果超出约束区域,云台进行调节;否则,云台静止不动,跳转到步骤五,其中,图像的分辨率为D1*D2,R为预设阈值;Step 2: The computer tracks and locates the monitoring target according to the Camshift algorithm, uses the Kalman filter to predict and compensate, and obtains the coordinates (X, Y) of the center of mass of the monitoring target, and judges whether the coordinates of the center of mass are in the coordinates of the center of the field of view (D1/2, D2/ 2) is the center of the circle and within the circular constrained area with a radius of R, if it exceeds the constrained area, the gimbal will be adjusted; otherwise, the gimbal will stand still and skip to step 5, where the resolution of the image is D1*D2, R is the preset threshold; 步骤三:云台进行调节时,如果自动调节系统功能正常,云台自动调节跟踪监控目标;否则,通过手机无线通信,利用云台控制功能界面发送指令,通过手机远程手动控制云台转动,完成跟踪任务;其中,云台控制量为:Step 3: When the pan/tilt is adjusted, if the automatic adjustment system functions normally, the pan/tilt will automatically adjust and track the monitoring target; otherwise, through the mobile phone wireless communication, use the pan/tilt control function interface to send instructions, and remotely manually control the pan/tilt rotation through the mobile phone to complete Tracking tasks; among them, the PTZ control amount is: 水平方向角度: Horizontal angle: 垂直方向角度: Vertical angle: 其中,X为监控目标水平方向质心坐标,Y为监控目标垂直方向质心坐标,θ1为摄像头水平视角的一半,为摄像头垂直视角的一半;Among them, X is the coordinates of the center of mass in the horizontal direction of the monitoring target, Y is the coordinates of the center of mass in the vertical direction of the monitoring target, θ1 is half of the horizontal viewing angle of the camera, Half of the vertical viewing angle of the camera; 步骤四:云台转动时,根据水平方向转动时间T1与垂直方向转动时间T2长短判断优先向哪个方向转动;T1≥T2时,云台垂直方向优先转动;否则,云台水平方向优先转动;转动时间公式为:Step 4: When the gimbal rotates, judge which direction to rotate in first according to the length of the horizontal rotation time T1 and the vertical rotation time T2; when T1≥T2, the gimbal rotates in the vertical direction first; otherwise, the gimbal rotates in the horizontal direction first; The time formula is: 水平方向转动时间:T1=α/ν1Horizontal rotation time: T1=α/ν1 垂直方向转动时间:T2=β/ν2Vertical rotation time: T2=β/ν2 其中,ν1为云台水平方向转动速度,ν2为云台垂直方向转动速度;Among them, ν1 is the rotation speed of the gimbal in the horizontal direction, and ν2 is the rotation speed of the gimbal in the vertical direction; 步骤五:监控目标在屏幕中的尺寸大小A与规定的合适尺寸大小B的差值的绝对值E与规定的阈值K比较,当E≥K时,镜头变倍;否则,镜头不变倍;其中:Step 5: compare the absolute value E of the difference between the size A of the monitoring target on the screen and the specified appropriate size B with the specified threshold K, and when E≥K, the lens zooms; otherwise, the lens zooms unchanged; in: A为跟踪窗口面积,可以根据跟踪算法计算得到;A is the tracking window area, which can be calculated according to the tracking algorithm; 图像的分辨率为D1*D2; The resolution of the image is D1*D2; E=|A-B|;E=|A-B|; 其中K为预先设置的面积阈值,以像素的平方为单位; Where K is a preset area threshold, in units of squares of pixels; 步骤六:镜头变倍时,如果自动调节系统功能正常,镜头接收串口发出的指令,自动变倍,直到监控目标以规定的合适尺寸出现在屏幕上;否则,通过手机无线通信,利用调焦控制功能界面发送指令,远程手动控制镜头变倍;然后,跳转到步骤一,循环往复。Step 6: When zooming the lens, if the automatic adjustment system is functioning normally, the lens receives the command from the serial port and automatically zooms until the monitoring target appears on the screen with the specified appropriate size; otherwise, through the wireless communication of the mobile phone, use the focus control The functional interface sends instructions to remotely and manually control the zoom of the lens; then, jump to step 1 and repeat. 3.根据权利要求2所述的自调节式云台摄像头远程智能控制方法,其特征在于:3. The remote intelligent control method of the self-adjusting pan-tilt camera according to claim 2, characterized in that: PC机正常运行,基于OpenCV平台,Camshift算法和Kalman滤波器相结合的跟踪算法实时运行,等待云台摄像头拍摄的视频的传入;打开云台摄像机,视频资源经过视频转换电路,传递到PC机里,用鼠标选择要跟踪的目标,利用PC机运行的跟踪算法对目标实时跟踪;The PC is running normally, based on the OpenCV platform, the tracking algorithm combined with the Camshift algorithm and the Kalman filter is running in real time, waiting for the incoming video from the PTZ camera; turn on the PTZ camera, and the video resources will be transmitted to the PC through the video conversion circuit Here, use the mouse to select the target to be tracked, and use the tracking algorithm run by the PC to track the target in real time; 利用跟踪算法得到得到监控目标质心坐标(X,Y),判断质心坐标是否在以视域中心坐标(D1/2,D2/2)为圆心,半径为R的圆形约束区域内,如果超出约束区域,云台进行调节,当自动控制系统正常时,PC机通过串口转换电路,向云台自动发送指令,云台自动转动调节,当目标质心坐标显示在约束区域内时,PC机停止向云台发送转动指令,云台停止转动;如果没超出约束区域,云台静止不动,其中,图像的分辨率为D1*D2,R为预设阈值;当云台需要转动调节时,其转动方向分为8种情况:Use the tracking algorithm to obtain the coordinates (X, Y) of the center of mass of the monitoring target, and determine whether the coordinates of the center of mass are within the circular constrained area with the center coordinates (D1/2, D2/2) as the center of the circle and the radius R, if it exceeds the constraint area, the pan/tilt adjusts. When the automatic control system is normal, the PC automatically sends instructions to the pan/tilt through the serial port conversion circuit, and the pan/tilt automatically rotates and adjusts. The gimbal sends a rotation command, and the gimbal stops rotating; if it does not exceed the restricted area, the gimbal stands still, where the resolution of the image is D1*D2, and R is the preset threshold; when the gimbal needs to be rotated and adjusted, its rotation direction Divided into 8 situations: 目标质心与视域中心水平坐标差:Δx=X-D1/2The horizontal coordinate difference between the center of mass of the target and the center of the field of view: Δx=X-D1/2 目标质心与视域中心竖直坐标差:Δy=Y-D2/2The vertical coordinate difference between the center of mass of the target and the center of the field of view: Δy=Y-D2/2 (1)当Δx>R且|Δy|≤R时,云台水平向右运动;(1) When Δx>R and |Δy|≤R, the gimbal moves horizontally to the right; (2)当Δx>R且Δy<-R时,云台向右上方运动;(2) When Δx>R and Δy<-R, the gimbal moves to the upper right; (3)当|Δx|≤R且Δy<-R时,云台垂直向上运动;(3) When |Δx|≤R and Δy<-R, the gimbal moves vertically upwards; (4)当Δx<-R且Δy<-R时,云台向左上方运动;(4) When Δx<-R and Δy<-R, the gimbal moves to the upper left; (5)当Δx<-R且|Δy|≤R时,云台水平向左运动;(5) When Δx<-R and |Δy|≤R, the gimbal moves horizontally to the left; (6)当Δx<-R且Δy>R时,云台向左下方运动;(6) When Δx<-R and Δy>R, the gimbal moves downward to the left; (7)当|Δx|≤R且Δy>R时,云台垂直向下运动;(7) When |Δx|≤R and Δy>R, the gimbal moves vertically downward; (8)当Δx>R且Δy>R时,云台向右下方运动;(8) When Δx>R and Δy>R, the gimbal moves downward to the right; 其中,云台控制量为:Among them, the PTZ control amount is: 水平方向角度: Horizontal angle: 垂直方向角度: Vertical angle: 其中,X为监控目标水平方向质心坐标,Y为监控目标垂直方向质心坐标,θ1为摄像头水平视角的一半,为摄像头垂直视角的一半;Among them, X is the coordinates of the center of mass in the horizontal direction of the monitoring target, Y is the coordinates of the center of mass in the vertical direction of the monitoring target, θ1 is half of the horizontal viewing angle of the camera, Half of the vertical viewing angle of the camera; 当云台需要在水平和垂直方向都转动时,根据水平方向转动时间T1与垂直方向转动时间T2长短判断优先向哪个方向转动;T1≥T2时,云台垂直方向优先转动;否则,云台水平方向优先转动;转动时间公式为:When the pan/tilt needs to rotate both horizontally and vertically, judge which direction to rotate preferentially according to the length of the horizontally rotating time T1 and the vertically rotating time T2; when T1≥T2, the vertical direction of the pan/tilt is preferentially rotated; The direction is given priority to rotation; the formula for the rotation time is: 水平方向转动时间:T1=α/v1Horizontal rotation time: T1=α/v1 垂直方向转动时间:T2=β/v2Vertical rotation time: T2=β/v2 其中,v1为云台水平方向转动速度,v2为云台垂直方向转动速度;Among them, v1 is the rotation speed of the gimbal in the horizontal direction, and v2 is the rotation speed of the gimbal in the vertical direction; 当云台自动控制系统出现故障时,手机进行无线连接,实时查看PC机的监控视频,并通过云台控制功能界面,手动控制云台的转动方向,实现对监控目标跟踪,使目标尽量显示在监控屏幕中央;When the pan/tilt automatic control system fails, the mobile phone connects wirelessly to view the surveillance video of the PC in real time, and manually controls the rotation direction of the pan/tilt through the pan/tilt control function interface to track the monitoring target and make the target appear on the screen as much as possible. Center of the monitoring screen; 由于监控运动目标与云台摄像机的距离时刻在变化中,监控目标在显示屏幕上的尺寸也在不断变化中,需要实时调焦,使目标以合适的尺寸显示在监控屏幕中央;监控目标在屏幕中的尺寸大小A与规定的合适尺寸大小B的差值的绝对值E与规定的阈值K比较,当E≥K时,镜头变倍;否则,镜头不变倍;其中:Since the distance between the monitoring moving target and the PTZ camera is changing all the time, the size of the monitoring target on the display screen is also constantly changing, and it is necessary to adjust the focus in real time so that the target is displayed in the center of the monitoring screen with an appropriate size; The absolute value E of the difference between the size A and the specified appropriate size B is compared with the specified threshold K. When E≥K, the lens zooms; otherwise, the lens does not change the zoom; where: A为跟踪窗口面积,可以根据跟踪算法计算得到;A is the tracking window area, which can be calculated according to the tracking algorithm; 图像的分辨率为D1*D2; The resolution of the image is D1*D2; E=|A-B|;E=|A-B|; 其中K为预先设置的面积阈值,以像素的平方为单位; Where K is a preset area threshold, in units of the square of pixels; 镜头变倍时,如果自动调节系统功能正常,镜头接收串口发出的指令,自动变倍,直到监控目标以规定的合适尺寸出现在屏幕上,此时,PC机停止向镜头发送调焦指令,调焦过程结束;如果自动调节系统功能故障,通过手机无线通信,利用调焦控制功能界面发送指令,远程手动控制镜头变倍;在手动调焦控制功能界面中,分为快速调焦和细微调焦两种方式,利用滑动条左右滑动来实现调焦方式,为快速调焦方式;利用按钮实现调焦方式,为细微调焦方式,两者结合,更好的实现调焦控制,使监控目标以理想的尺寸大小显示在屏幕中央。When the lens zooms, if the automatic adjustment system functions normally, the lens receives the command from the serial port and automatically zooms until the monitoring target appears on the screen with the specified appropriate size. At this time, the PC stops sending the focusing command to the lens and adjusts The focusing process is over; if the function of the automatic adjustment system fails, send commands through the mobile phone wireless communication and use the focus control function interface to remotely manually control the zoom of the lens; in the manual focus control function interface, it is divided into fast focus and fine focus There are two ways, use the slide bar to slide left and right to realize the focusing method, which is the fast focusing method; use the button to realize the focusing method, which is the fine focusing method, the combination of the two can better realize the focusing control, so that the monitoring target can The ideal size is displayed in the center of the screen.
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