WO2015154508A1 - 塔机视频监控控制设备、方法、系统及塔机 - Google Patents
塔机视频监控控制设备、方法、系统及塔机 Download PDFInfo
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- WO2015154508A1 WO2015154508A1 PCT/CN2014/093755 CN2014093755W WO2015154508A1 WO 2015154508 A1 WO2015154508 A1 WO 2015154508A1 CN 2014093755 W CN2014093755 W CN 2014093755W WO 2015154508 A1 WO2015154508 A1 WO 2015154508A1
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- camera
- hook
- tower crane
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- angle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
Definitions
- the invention relates to the field of engineering machinery, in particular to a tower machine video monitoring and control device, a method, a system and a tower crane.
- the ordinary tower crane safety monitoring system can maximize the protection of the tower crane operation in the over-limit protection, the tower crane operator can not completely control the construction site due to limited vision during high-altitude operation, thus affecting the construction progress and Safety.
- the existing tower crane video surveillance system can only provide the construction image of a certain construction site.
- the hook is constantly moving up and down.
- the operator needs to pay attention to the construction image near the hook to help. It is judged by operation to avoid a safety accident. Therefore, the development of a tower video security monitoring system that can obtain on-site construction images near the hooks and is easy to operate will have good prospects in the future safety application of tower cranes.
- the object of the present invention is to provide a tower machine video monitoring and control device, method, system and tower crane, which can better obtain the on-site construction image near the hook.
- the present invention provides a tower crane video monitoring and control device, the device comprising: receiving means for receiving the height and amplitude of the hook of the tower crane; and control means for: according to the tower Calculating the horizontal distance and the vertical distance between the crane hook and the camera; and performing at least one of: calculating the camera pair according to the horizontal distance and the vertical distance a pitch angle at the time of the hook, and adjusting a rotation mechanism of the camera according to the angle to align the camera with the hook; Calculating a distance between the camera and the hook according to a horizontal distance and a vertical distance, calculating an angle of view of the camera according to the distance and a set value of the observation radius of the hanging object, and controlling according to the angle of view
- the camera performs magnification adjustment.
- the present invention further provides a tower crane video monitoring system, the system comprising: a camera; a height sensor for detecting the height of the hook; an amplitude sensor for detecting the amplitude of the hook; and a rotating mechanism, For adjusting the observation direction of the camera; and the above-mentioned tower camera video monitoring and control device.
- the present invention also provides a tower crane comprising the above-described tower crane video monitoring system.
- the present invention also provides a tower crane video monitoring and control method, the method comprising: receiving a height and an amplitude of a hook of the tower crane; calculating the tower according to a height and a magnitude of a hook of the tower crane a horizontal distance and a vertical distance between the hook and the camera; and at least one of: calculating a pitch angle of the camera when the camera is aligned with the hook according to the horizontal distance and the vertical distance, and according to the angle Adjusting a rotation mechanism of the camera to align the camera with the hook; and calculating a distance between the camera and the hook according to the horizontal distance and a vertical distance, according to the distance and the hanging
- the object area observation radius setting value is calculated, and the camera's field of view angle is calculated, and the camera is controlled to perform magnification adjustment according to the field angle.
- the camera is automatically aligned with the observation object (ie, the hook), the hook movement is automatically tracked, the construction site picture near the hook is obtained, and the automatic adjustment is performed;
- the focal length of the camera gives the camera a better field of view.
- FIG. 1 is a schematic structural diagram of a tower crane video monitoring system provided by the present invention
- FIG. 2 is a schematic view showing a mounting position of the camera
- Figure 3 is a schematic diagram of the control camera aligning the hook
- Figure 4 is a schematic diagram of the field of view of the control camera
- FIG. 5 is a flowchart of a video surveillance control method for a tower crane provided by the present invention.
- FIG. 1 is a schematic structural view of a tower crane video monitoring system according to the present invention, wherein a solid line represents a mechanical connection, and a broken line represents an electrical connection or a signal connection.
- the present invention provides a tower camera video monitoring system, the system comprising: a camera 10 facing the hook or the sling; and a display device 20 for displaying the camera 10 a height sensor 30 for detecting the height of the hook; an amplitude sensor 40 for detecting the amplitude of the hook; a rotation mechanism 50 for adjusting the observation direction of the camera 10; and a tower camera video Monitoring device 60, comprising: receiving device 61 for receiving the height and amplitude of the hook of the tower crane; and control device 62 for calculating the height and amplitude of the hook of the tower crane a horizontal distance and a vertical distance between the tower crane hook and the camera; and performing at least one of: calculating a pitch angle at which the camera 10 is aligned with the hook according to the horizontal distance and the vertical distance, and Adjusting
- the camera is automatically aligned with the observation object (ie, the hook), the hook movement is automatically tracked, the construction site picture near the hook is obtained, and the camera is automatically adjusted.
- the focal length allows the camera to have a better field of view. It should be noted that the above function of automatically adjusting the focal length of the camera is only applicable to the case where the camera is a zoom camera. For a fixed focus camera, only the above-described function of automatically tracking the hook movement can be realized.
- the height sensor and the amplitude sensor can be realized by using an existing sensor installed on the tower crane hoisting mechanism and the luffing mechanism on the tower crane, which can detect the rotation angle of the hoisting mechanism by the tower crane and according to the angle and The radius of the hoisting mechanism is used to calculate the lifting height of the hook (by which the vertical distance between the hook and the camera can be obtained in conjunction with the position at which the camera is located, for example, when the camera is mounted under the boom at a predetermined position
- the vertical distance between the hook and the camera may be the detected lifting height minus the vertical distance between the camera and the boom
- the amplitude of the trolley by which, in combination with the camera Position, the horizontal distance between the hook and the camera is obtained.
- the horizontal distance between the hook and the camera can be the detected amplitude plus Or subtract the horizontal distance between the camera and the center of rotation).
- the receiving device may further receive a current pitch angle of the camera and/or a current angle of view of the camera; and the control device may calculate a pitch angle according to the current pitch angle
- the difference between the cameras adjusts the rotation mechanism of the camera to cause the camera to align with the hook; and/or can control the difference between the calculated field of view angle and the current field of view angle
- the camera performs magnification adjustment.
- this is just providing a specific control
- the invention is not limited thereto, and the control device can directly control the camera such that the pitch angle or the angle of view satisfies the calculated pitch angle or angle of view.
- Figure 2 is a schematic view of the installation position of the camera.
- the camera 10 is mounted under the cab 1 of the tower crane, wherein the direction of the arrow in front of the camera is the direction of observation of the camera 10, and the rotation of the rotating mechanism 50 enables the direction of observation of the camera 10 to be scanned from the arm of the tower crane 2
- the observation range may be a sector composed of the camera 10, the tower crane 2 and the tower body.
- the camera 10 can also be mounted on the arm tip of the boom 2, and the installation method can also obtain a good viewing angle.
- the specific choice is to install below the tower cab 1 or the boom 2 arm tip can be determined according to the length of the boom and the difficulty of installation.
- a camera can be installed under the cab 1 and the arm of the tower crane 2 to increase the scope of the system. Regardless of the installation method, the control principle is the same. Moreover, both mounting positions are fixed relative to the tower crane boom, and both signal and power transmission can be achieved by wire. Of course, the present invention is not limited thereto, and the camera 10 can be mounted at any position of the tower crane (for example, can be mounted at a position other than the arm tip of the boom) as long as the hook can be observed.
- the rotating mechanism 50 is mounted below the tower cab 1 or at the arm of the tower crane 2, and the camera 10 is mounted on the rotating mechanism 50.
- the rotating mechanism 50 can have a degree of freedom of rotation and can also have a plurality of degrees of freedom of rotation.
- the rotating mechanism 50 can be driven by a motor or a hydraulic device. For the function of only implementing the above-described automatic adjustment of the focal length of the camera, the rotating mechanism can be eliminated.
- FIG. 3 is a schematic diagram of the control camera aligning the hook. As shown in FIG. 3, the pitch angle of the camera when the hook is aligned with the hook is calculated according to the following formula:
- H is the distance of the hook 3 from the camera 10 in the vertical direction
- L is the distance of the hook 3 from the camera in the horizontal direction.
- the control device 62 can acquire an angle (ie, a current pitch angle) ⁇ 1 between the current observation direction and the horizontal direction of the camera 10, according to the angle ⁇ 1 and the pitch angle when the calculated camera is aligned with the hook That is, the rotation mechanism 50 is controlled to rotate by an angle such that the angle between the observation direction of the camera 10 and the horizontal direction satisfies the angle ⁇ .
- an angle ie, a current pitch angle
- the distance S between the camera 10 and the hook 3 can also be calculated.
- the specific calculation formula is as follows:
- Figure 4 is a schematic diagram of the field of view of the control camera.
- Figure 4 shows that when the vertical distance of the hook from the camera is S1 and the observation radius of the hanging object is set to R, the angle of view of the camera is ⁇ 1; the vertical distance from the hook to the camera is In S2 and the hanging area observation radius setting value is R, the camera's field of view angle is ⁇ 2.
- the field of view ⁇ of the camera can be calculated according to the following formula:
- R is the set value of the observation radius of the hanging object, that is, the radius of the observation range near the hook.
- the observation radius can be set according to the size of the lifting object on the construction site. If it is set to 1.5 times or 2 times the size of the heavy object, the video screen can completely cover the environment around the heavy object and the heavy object. In actual use, the observation radius can be set by the operator according to the needs to adapt to different lifting environment requirements.
- the control device can acquire the current angle of view of the camera, calculate a preferred field of view according to the above formula, and send a control command to the camera according to the difference between the two fields of view, so that the camera completes the field of view by itself. Double operation.
- the above-mentioned tower crane video monitoring system of the invention has the following advantages: 1) the camera can automatically track the hook movement and automatically realize the camera view according to the height information and the amplitude information in the tower working condition. Field zooming; 2), the technical principle is simple and easy, high reliability, strong applicability; 3), system composition cost is low, easy to promote; 4), high degree of automation, can minimize the complexity of operator operations.
- the present invention also provides a tower crane comprising the above-described tower crane video surveillance system.
- the present invention also provides a tower crane video monitoring and control method, the method comprising: receiving a height and a magnitude of a hook of the tower crane; and calculating the height according to the height and amplitude of the hook of the tower crane a horizontal distance and a vertical distance between the tower crane hook and the camera; and at least one of: calculating a pitch angle at which the camera is aligned with the hook according to the horizontal distance and the vertical distance, and adjusting according to the angle a rotating mechanism of the camera to align the camera with the hook; and calculating a distance between the camera and the hook according to the horizontal distance and the vertical distance, and observing the hanging area according to the distance
- the radius setting value is used to calculate the angle of view of the camera, and the camera is controlled to perform magnification adjustment according to the angle of view.
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Abstract
本发明公开了一种塔机视频监控控制设备、方法、系统及塔机，所述设备包括：接收装置，用于接收所述塔机的吊钩的高度及幅度；以及控制装置，用于根据所述塔机的吊钩的高度及幅度，计算所述塔机吊钩与摄像机之间的水平距离与竖直距离；以及以下至少一者：根据所述水平距离与竖直距离，计算摄像机对准所述吊钩时的俯仰角度，并根据该角度调节所述摄像机的转动机构，以使得所述摄像机对准所述吊钩；及根据所述水平距离与竖直距离，计算摄像机与所述吊钩之间的距离，根据该距离与吊物区域观测半径设定值，计算所述摄像机的视场角，并根据该视场角控制所述摄像机进行倍率调整。
Description
本发明涉及工程机械领域，具体地，涉及一种塔机视频监控控制设备、方法、系统及塔机。
普通塔机安全监控系统虽然能在超限保护上最大限度地实现对塔机操作的保护，但是塔机操作人员在高空作业时由于视力受限不能完全掌控施工现场的情况，从而影响施工进度和安全。
现有的塔机视频监控系统仅可提供某一现场施工区域的施工图像，然而在塔机运行过程中，吊钩是不断上下运动的，操作人员需要时刻关注吊钩附近的施工图像，以助于其进行操作判断，从而避免发生安全事故。因此，开发一套能够获取吊钩附近的现场施工图像、操作简易的塔机视频安全监控系统在未来的塔机安全应用领域将拥有良好的前景。
发明内容
本发明的目的是提供一种塔机视频监控控制设备、方法、系统及塔机，其可较好地获取吊钩附近的现场施工图像。
为了实现上述目的，本发明提供一种塔机视频监控控制设备，该设备包括：接收装置，用于接收所述塔机的吊钩的高度及幅度；以及控制装置，用于：根据所述塔机的吊钩的高度及幅度，计算所述塔机吊钩与摄像机之间的水平距离与竖直距离；以及执行以下至少一者：根据所述水平距离与竖直距离，计算所述摄像机对准所述吊钩时的俯仰角度，并根据该角度调节所述摄像机的转动机构，以使得所述摄像机对准所述吊钩；及根据所述
水平距离与竖直距离，计算所述摄像机与所述吊钩之间的距离，根据该距离与吊物区域观测半径设定值，计算所述摄像机的视场角，并根据该视场角控制所述摄像机进行倍率调整。
相应地，本发明还提供一种塔机视频监控系统，该系统包括：摄像机；高度传感器，用于检测所述吊钩的高度；幅度传感器，用于检测所述吊钩的幅度；转动机构，用于调节所述摄像机的观测方向；以及上述塔机视频监控控制设备。
相应地，本发明还提供一种塔机，该塔机包括上述塔机视频监控系统。
相应地，本发明还提供一种塔机视频监控控制方法，该方法包括：接收所述塔机的吊钩的高度及幅度；根据所述塔机的吊钩的高度及幅度，计算所述塔机吊钩与摄像机之间的水平距离与竖直距离；以及以下至少一者：根据所述水平距离与竖直距离，计算所述摄像机对准所述吊钩时的俯仰角度，并根据该角度调节所述摄像机的转动机构，以使得所述摄像机对准所述吊钩；及根据所述水平距离与竖直距离，计算所述摄像机与所述吊钩之间的距离，根据该距离与吊物区域观测半径设定值，计算所述摄像机的视场角，并根据该视场角控制所述摄像机进行倍率调整。
通过上述技术方案，可实现以下至少一者，获得良好的施工现场画面：使得摄像机自动对准观察对象(即，吊钩)，自动跟踪吊钩运动，获取吊钩附近施工现场画面；以及自动调节摄像机的焦距，使得摄像机具备较佳的视场角。
本发明的其他特征和优点将在随后的具体实施方式部分予以详细说明。
附图是用来提供对本发明的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本发明，但并不构成对本发明的限制。
在附图中：
图1为本发明提供的塔机视频监控系统的结构示意图；
图2为摄像机的安装位置示意图；
图3为控制摄像机对准吊钩的原理图；
图4为控制摄像机的视场角的原理图；以及
图5为本发明提供的塔机视频监控控制方法流程图。
附图标记说明
10 摄像机 20 显示装置
30 高度传感器 40 幅度传感器
50 转动机构 60 控制设备
61 接收装置 62 控制装置
1 驾驶室 2 吊臂
3 吊钩
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
图1为本发明提供的塔机视频监控系统的结构示意图，其中实线代表机械连接，虚线代表电连接或信号连接。如图1所示，本发明提供了一种塔机视频监控系统，该系统包括：摄像机10，该摄像机10朝向所述吊钩或吊绳；显示装置20，用于显示所述摄像机10所拍摄的图像；高度传感器30，用于检测所述吊钩的高度；幅度传感器40，用于检测所述吊钩的幅度；转动机构50，用于调节所述摄像机10的观测方向；以及塔机视频监控控制设备60，该设备60包括：接收装置61，用于接收所述塔机的吊钩的高度及幅度；以及控制装置62，用于根据所述塔机的吊钩的高度及幅度，计算
所述塔机吊钩与摄像机之间的水平距离与竖直距离；以及执行以下至少一者：根据所述水平距离与竖直距离，计算摄像机10对准所述吊钩时的俯仰角度，并根据该角度调节所述摄像机10的转动机构50，以使得所述摄像机10对准所述吊钩；及根据所述水平距离与竖直距离，计算摄像机10与所述吊钩之间的距离，根据该距离与吊物区域观测半径设定值，计算所述摄像机10的视场角，并根据该视场角控制所述摄像机10进行倍率调整。藉此，可实现以下至少一者，获得良好的施工现场画面：使得摄像机自动对准观察对象(即，吊钩)，自动跟踪吊钩运动，获取吊钩附近施工现场画面；以及自动调节摄像机的焦距，使得摄像机具备较佳的视场角。需要说明的是，上述自动调节摄像机焦距的功能仅适用于所述摄像机为变焦摄像机的情形。对于定焦摄像机而言，可仅实现上述自动跟踪吊钩运动的功能。
其中，所述高度传感器及幅度传感器可利用塔机上现有的安装于塔机起升机构及变幅机构的传感器来实现，其可通过检测塔机起升卷扬机构的转动角度并根据该角度及卷扬机构的半径来计算吊钩的起升高度(藉此，可结合摄像机所处于的位置，得出吊钩与摄像机之间的竖直距离，例如，在摄像机安装于吊臂之下一预定位置处的情况下，吊钩与摄像机之间的竖直距离可为所检测的起升高度减去摄像机与吊臂之间的竖直距离)及小车的幅度(藉此，可结合摄像机所处于的位置，得出吊钩与摄像机之间的水平距离，例如，在摄像机安装于回转中心一侧的一预定位置处的情况下，吊钩与摄像机之间的水平距离可为所检测的幅度加上或减去摄像机与回转中心之间的水平距离)。
就具体控制而言，所述接收装置还可接收所述摄像机的当前俯仰角度和/或所述摄像机的当前视场角；及所述控制装置可根据计算得到的俯仰角度与所述当前俯仰角度之间的差值调节所述摄像机的转动机构，以使得所述摄像机对准所述吊钩；和/或可根据计算得到的视场角与所述当前视场角之间的差值控制所述摄像机进行倍率调整。当然，这只是提供一具体控制
实施例，本发明并不限于此，控制装置可直接控制摄像机，使其俯仰角度或视场角满足所计算得到的俯仰角度或视场角。
图2为摄像机的安装位置示意图。如图2所示，摄像机10安装于塔机驾驶室1下方，其中摄像机前方箭头方向为摄像机10的观测方向，转动机构50的转动能够使摄像机10的观测方向从塔机吊臂2臂尖扫描至塔机底部基座，即观测范围可为以摄像机10、塔机吊臂2和塔身构成的扇面。当然摄像机10还可安装在吊臂2臂尖，该安装方式也能得到良好的视角。具体选择安装在塔机驾驶室1下方还是吊臂2臂尖可根据吊臂长度和安装难度而定。如果对成本约束不大，也可以在驾驶室1下方和塔机吊臂2臂尖各安装一摄像机，以增加系统的观测范围。不论采用何种安装方式，控制原理都一样。而且两种安装位置相对于塔机吊臂都是固定位置，信号和电源传输都可以使用有线方式实现。当然，本发明并不限于此，摄像机10可安装于塔机的任何位置(例如，可安装在吊臂除臂尖之外的位置)，只要能够观测到吊钩即可。
如果所述摄像机10配备有转动机构50，则所述转动机构50安装于塔机驾驶室1下方或塔机吊臂2臂尖，所述摄像机10安装于所述转动机构50上。该转动机构50可具有一个转动自由度，亦可具备多个转动自由度。该转动机构50可由电机驱动或液压装置驱动。对于仅实施上述自动调节摄像机焦距的功能而言，可无需转动机构。
以下以所述摄像机10安装于塔机驾驶室1下方为例，对本发明的上述自动调节摄像机10对准吊钩3及自动调节摄像机焦距的功能进行详细介绍。
图3为控制摄像机对准吊钩的原理图。如图3所示，所述摄像机对准所述吊钩时的俯仰角度Θ根据以下公式计算：
其中，H为所述吊钩3距离摄像机10在竖直方向的距离；L为所述吊钩3距离摄像机在水平方向的距离。
所述控制装置62可获取摄像机10的当前观测方向与水平方向之间的夹角(即，当前俯仰角度)Θ1，根据该夹角Θ1及上述计算的摄像机对准所述吊钩时的俯仰角度Θ，控制转动机构50转动一角度，使得摄像机10的观测方向与水平方向之间的夹角满足角度Θ。
根据图3所示的原理，还可计算出所述摄像机10与所述吊钩3之间的距离S，具体计算公式如下：
图4为控制摄像机的视场角的原理图。图4分别示出了在吊钩距离摄像机的竖直距离为S1且吊物区域观测半径设定值为R的情况下，摄像机的视场角为Ф1；在吊钩距离摄像机的竖直距离为S2且吊物区域观测半径设定值为R的情况下，摄像机的视场角为Ф2。所述摄像机的视场角Ф可根据以下公式计算：
其中，R为吊物区域观测半径设定值，即吊钩附近需要观测范围的半径。该观测半径可根据施工现场吊装重物尺寸设定，如设定为吊重重物尺寸的1.5倍或2倍，就可以使得视频画面完全覆盖重物及重物周边的环境。在实际使用中，观测半径可由操作人员根据需要自行设定，以适应不同吊装现场环境需要。
所述控制装置可获取摄像机的当前视场角，同时根据上述公式计算较佳视场角，根据该两视场角之间的差值，发送控制指令至摄像机，以使得摄像机自行完成视场变倍操作。
本发明的上述塔机视频监控系统具有以下优点：1)可根据塔机工况中的高度信息与幅度信息来使摄像头自动跟踪吊钩运动及自动实现摄像机视
场变倍；2)、技术原理简单易行、可靠性高、适用性强；3)、系统构成成本低，易推广；4)、自动化程度高，能最大降低操作人员操作的复杂度。
相应地，本发明还提供了一种塔机，该塔机包括上述塔机视频监控系统。
相应地，本发明还提供了一种塔机视频监控控制方法，该方法包括：接收所述塔机的吊钩的高度及幅度；根据所述塔机的吊钩的高度及幅度，计算所述塔机吊钩与摄像机之间的水平距离与竖直距离；以及以下至少一者：根据所述水平距离与竖直距离，计算摄像机对准所述吊钩时的俯仰角度，并根据该角度调节所述摄像机的转动机构，以使得所述摄像机对准所述吊钩；及根据所述水平距离与竖直距离，计算摄像机与所述吊钩之间的距离，根据该距离与吊物区域观测半径设定值，计算所述摄像机的视场角，并根据该视场角控制所述摄像机进行倍率调整。有关该方法的具体细节及益处与上述针对塔机视频监控控制设备的相同，于此不再赘述。
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，这些简单变型均属于本发明的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合。为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。
此外，本发明的各种不同的实施方式之间也可以进行任意组合，只要其不违背本发明的思想，其同样应当视为本发明所公开的内容。
Claims (11)
- 一种塔机视频监控控制设备，其特征在于，该设备包括：接收装置，用于接收所述塔机的吊钩的高度及幅度；以及控制装置，用于：根据所述塔机的吊钩的高度及幅度，计算所述塔机吊钩与摄像机之间的水平距离与竖直距离；以及以下至少一者：根据所述水平距离与竖直距离，计算所述摄像机对准所述吊钩时的俯仰角度，并根据该角度调节所述摄像机的转动机构，以使得所述摄像机对准所述吊钩；及根据所述水平距离与竖直距离，计算所述摄像机与所述吊钩之间的距离，根据该距离与吊物区域观测半径设定值，计算所述摄像机的视场角，并根据该视场角控制所述摄像机进行倍率调整。
- 根据权利要求1所述的控制设备，其特征在于，所述接收装置还用于接收所述摄像机的当前俯仰角度和/或所述摄像机的当前视场角；及所述控制装置用于根据计算得到的俯仰角度与所述当前俯仰角度之间的差值调节所述摄像机的转动机构，以使得所述摄像机对准所述吊钩；和/或用于根据计算得到的视场角与所述当前视场角之间的差值控制所述摄像机进行倍率调整。
- 根据权利要求1或2所述的控制设备，其特征在于，所述摄像机对准所述吊钩时的俯仰角度Θ根据以下公式计算：
其中，H为所述吊钩与所述摄像机之间的竖直距离，L为所述吊钩与所述摄像机之间的水平距离。 - 根据权利要求1或2所述的控制设备，其特征在于，所述摄像机与所述吊钩之间的距离S根据以下公式计算：
其中，H为所述吊钩与所述摄像机之间的竖直距离，L为所述吊钩与所述摄像机之间的水平距离，所述摄像机的视场角Φ根据以下公式计算：
其中，R为吊物区域观测半径设定值。 - 一种塔机视频监控系统，其特征在于，该系统包括：摄像机；高度传感器，用于检测所述吊钩的高度；幅度传感器，用于检测所述吊钩的幅度；转动机构，用于调节所述摄像机的观测方向；以及根据权利要求1-4中任一项权利要求所述的塔机视频监控控制设备。
- 根据权利要求5所述的监控系统，其特征在于，所述转动机构安装于塔机驾驶室下方或塔机吊臂臂尖。
- 一种塔机，其特征在于，该塔机包括根据权利要求5或6所述的塔机视频监控系统。
- 一种塔机视频监控控制方法，其特征在于，该方法包括：接收所述塔机的吊钩的高度及幅度；根据所述塔机的吊钩的高度及幅度，计算所述塔机吊钩与摄像机之间的水平距离与竖直距离；以及以下至少一者：根据所述水平距离与竖直距离，计算所述摄像机对准所述吊钩时的俯仰角度，并根据该角度调节所述摄像机的转动机构，以使得所述摄像机对准所述吊钩；及根据所述水平距离与竖直距离，计算所述摄像机与所述吊钩之间的距离，根据该距离与吊物区域观测半径设定值，计算所述摄像机的视场角，并根据该视场角控制所述摄像机进行倍率调整。
- 根据权利要求8所述的控制方法，其特征在于，该方法还包括：接收所述摄像机的当前俯仰角度或所述摄像机的当前视场角，所述控制摄像机对准吊钩的步骤包括：根据计算得到的俯仰角度与所述当前俯仰角度之间的差值调节所述摄像机的转动机构，以使得所述摄像机对准所述吊钩，所述控制摄像机进行倍率调整的步骤包括：根据计算得到的视场角与所述当前视场角之间的差值控制所述摄像机进行倍率调整。
- 根据权利要求8或9所述的控制方法，其特征在于，所述摄像机对准所述吊钩时的俯仰角度Θ根据以下公式计算：
其中，H为所述吊钩与摄像机之间的竖直距离，L为所述吊钩与摄像机之间的水平距离。 - 根据权利要求8或9所述的控制方法，其特征在于，所述摄像机与所述吊钩之间的距离S根据以下公式计算：
其中，H为所述吊钩与摄像机之间的竖直距离，L为所述吊钩与摄像机之间的水平距离，所述摄像机的视场角Φ根据以下公式计算：
其中，R为吊物区域观测半径设定值。
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| CN107934783A (zh) * | 2017-12-26 | 2018-04-20 | 徐州建机工程机械有限公司 | 一种塔机智能学习的便捷收钩控制系统 |
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