CN104427300A - Control method and device of video monitoring device - Google Patents
Control method and device of video monitoring device Download PDFInfo
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- CN104427300A CN104427300A CN201310379513.3A CN201310379513A CN104427300A CN 104427300 A CN104427300 A CN 104427300A CN 201310379513 A CN201310379513 A CN 201310379513A CN 104427300 A CN104427300 A CN 104427300A
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Abstract
The invention discloses a control method and device of a video monitoring device and relates to the field of computers and safety protection. The method and device are designed to solve problems that the prior video monitoring device is not flexible enough in control, or the cost is high or the use feeling is poor and the like. In the control method and device of the video monitoring device, through receiving of a drag track on a monitoring picture, a control vector is formed and the rotation of the video monitoring device is controlled according to the control vector so that the control method and device of the video monitoring device have the advantages of being simple and convenient to control and great in use feelings.
Description
Technical Field
The invention relates to the field of computers and security, in particular to a control method and device of video monitoring equipment.
Background
PTZ: Pan/Tilt/Zoom is applied to the video monitoring equipment which moves in four directions, namely up, down, left and right, by a holder in an omnibearing manner in the field of security protection.
The existing video monitoring equipment has the following two control modes:
the first method comprises the following steps: the control part control mainly adopts a 4-direction or 8-direction control part to control the motion of the video monitoring equipment; by adopting the control mode, the equipment cost is low, but the following defects exist:
1: the control accuracy can only be accurate to the angle represented by each direction of the control, for example, the control accuracy of the 4-direction control is 90 degrees, so that the control accuracy is low;
2: when the control is carried out, the control interface is separated from the monitoring picture, and the control is carried out by comparing the video window in the use process, so that the control is not convenient enough;
3: the speed of the video control equipment cannot be synchronously adjusted in the direction control of the video equipment;
4: the video equipment is independently controlled, a plurality of video monitoring equipment cannot be well connected, and continuous tracking of a target is realized;
5: the monitoring angle and the monitoring range of the current video monitoring equipment cannot be accurately known;
and the second method comprises the following steps: handle control, the drive of the direction of realizing video monitoring equipment through shaking the handle, for a control, it is more convenient, but have equipment cost higher, still be that the independent control can't realize linking, the unknown scheduling problem of control angle between a plurality of video monitoring equipment.
Disclosure of Invention
The embodiment of the invention provides a control method and a control device of video monitoring equipment, which aim to solve the contradiction between low equipment cost, simple and convenient control and user experience in the prior art.
In order to solve the technical problem, the embodiment of the invention discloses the following technical scheme:
a first aspect provides a control method of a video monitoring apparatus, the control method including:
receiving a dragging track on a monitoring picture;
forming a control vector formed by connecting a starting point of a dragging track with any one point in the dragging track except the starting point of the dragging track; the starting points of the dragging tracks are the starting points of all control vectors in the same dragging track;
and after each control vector is formed, controlling the video monitoring equipment to rotate in real time according to the currently formed control vector so as to change the monitoring visual angle of the video monitoring equipment.
In a first implementation form of the first aspect,
the real-time control of the video monitoring equipment according to the currently formed control vector specifically comprises the following steps: controlling the video monitoring equipment to rotate according to a preset mapping relation between the control vector and the rotation speed of the video monitoring equipment;
the preset mapping relation between the control vector and the motion speed of the video monitoring equipment is as follows:
VW 2+VH 2≤Vmax 2
wherein,
VHfor vertical rotational angular velocity, V, of video surveillance equipmentWFor the horizontal rotational angular velocity, V, of the video monitoring apparatusmaxThe maximum rotation angular velocity of the video monitoring equipment;
l is the control vector, H is the vertical component of the control vector, W is the horizontal component of the control vector,is the angle between the control vector and the horizontal direction.
In a second implementation manner of the first aspect, there are multiple video monitoring devices;
before controlling the first video monitoring equipment to move in real time according to the currently formed control vector, judging whether the monitoring visual angle of the first video monitoring equipment exceeds a preset position according to the currently formed control vector;
if so, controlling the monitoring visual angle of the second video monitoring equipment to move to the linkage preset position for continuous monitoring, and switching the monitoring picture of the first video monitoring equipment into the monitoring picture of the second video monitoring equipment;
the area monitored by the second video monitoring device in the linkage preset position and the area monitored by the first video monitoring device in the preset position are the same area.
In a third implementation manner of the first aspect, the current monitoring angle and the monitorable area of the video monitoring device are displayed on the state diagram of the video monitoring device while the video monitoring device is controlled to rotate in real time according to the currently formed control vector.
In a fourth implementation manner of the first aspect, the state diagram of the video monitoring device is further used to display geographical location information of the video monitoring device.
A second aspect provides a control apparatus for video surveillance, the control apparatus comprising:
the dragging receiving unit is used for receiving dragging tracks on the monitoring picture;
the control vector forming unit is used for forming a control vector formed by a starting point of the dragging track and any one point except the starting point in the dragging track; the starting points of the dragging tracks are the starting points of all control vectors in the same dragging track;
and the control unit is used for controlling the video monitoring equipment to rotate in real time according to the currently formed control vector so as to change the monitoring visual angle of the video monitoring equipment.
In a first implementation manner of the second aspect, the control unit is specifically configured to control the video monitoring device to rotate according to a mapping relationship between a control vector and a motion of the video monitoring device;
the mapping relation between the control vector and the motion of the video monitoring equipment is as follows:
VW 2+VH 2≤Vmax 2
wherein,
VHfor vertical rotational angular velocity, V, of video surveillance equipmentWFor the horizontal rotational angular velocity, V, of the video monitoring apparatusmaxThe maximum rotation angular velocity of the video monitoring equipment;
l is the control vector, H is the vertical component of the control vector, W is the horizontal component of the control vector,is the angle between the control vector and the horizontal direction.
In a second implementation manner of the second aspect, the number of the devices connected to the video monitoring device controlled by the control device is multiple;
the control device of the video monitoring equipment further comprises a linkage triggering unit and a monitoring picture switching unit:
the linkage triggering unit is used for judging whether the monitoring visual angle of the first video monitoring equipment exceeds a preset position according to the currently formed control vector before controlling the first video monitoring equipment to move in real time according to the currently formed control vector;
the control unit is further used for controlling the monitoring visual angle of the second video monitoring equipment to move to the linkage preset position for continuous monitoring when the linkage trigger unit judges that the monitoring visual angle of the first video monitoring equipment exceeds the preset position;
the monitoring picture switching unit is used for switching the monitoring picture of the first video monitoring equipment into the monitoring picture of the second video monitoring equipment when the monitoring visual angle of the first video monitoring equipment exceeds a preset position and the monitoring visual angle of the second video monitoring equipment moves to a linkage preset position;
the area monitored by the second video monitoring device in the linkage preset position and the area monitored by the first video monitoring device in the preset position are the same area.
In a third implementation manner of the second aspect, the method further includes:
and the monitoring state display unit is used for displaying the current monitoring angle and the monitorable area of the video monitoring equipment on the state diagram of the video monitoring equipment while controlling the video monitoring equipment to rotate in real time according to the currently formed control vector.
In a fourth implementation manner of the second aspect, the state diagram of the video monitoring device is further used to display a geographic location of the video monitoring device.
In the embodiment of the invention, the dragging track which is used for containing the control information is directly received on the monitoring picture, the video monitoring equipment is rotated according to the realization of the control vector, the monitoring visual angle of the video monitoring equipment is further controlled, the control is directly realized on the monitoring picture, and the monitoring picture is synchronously adjusted in real time according to the motion of the video monitoring equipment; and secondly, compared with the traditional handle control, a special control handle device is not needed to be manufactured, and corresponding software or firmware is operated at a control end, so that the equipment cost is low. Compared with the traditional handle control, the method has the advantages that the corresponding dragging track is formed on the monitoring picture through mouse or touch, the fine control is simpler and more convenient than the handle operation, and the problem that the monitoring visual angle of the video monitoring equipment cannot be aligned to the required area due to too large or too small movement amplitude of the handle is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic control flow diagram of a control method of a video monitoring apparatus according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating an embodiment of monitoring a screen, a dragging trajectory, and a control vector;
FIG. 3 is a monitoring screen in an embodiment of the present invention;
fig. 4 is an exploded view of the control vector according to the embodiment of the present invention.
FIG. 5 is a state diagram of a video surveillance device in accordance with an embodiment of the present invention;
FIG. 6 is a state diagram of a video surveillance device in accordance with an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a control device of a video monitoring apparatus according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a control device of a video monitoring apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1, this embodiment provides a method for controlling a video monitoring device, where the method for controlling the video monitoring device includes:
step S110: receiving a dragging track on a monitoring picture;
step S120: forming a control vector formed by connecting a starting point of a dragging track with any one point in the dragging track except the starting point of the dragging track; the starting points of the dragging tracks are the starting points of all control vectors in the same dragging track;
step S130: and after each control vector is formed, controlling the video monitoring equipment to rotate in real time according to the currently formed control vector so as to change the monitoring visual angle of the video monitoring equipment.
The monitoring picture is a picture returned by the current monitoring of the controlled video monitoring equipment; the dragging track is a way for a user to input a control instruction, and specifically, for example, a track formed by uninterrupted movement of a mouse from one point to another on a monitoring picture is the dragging track or a user's manual uninterrupted sliding when the monitoring picture is displayed on a touch screen; the control vector is a connecting line between the starting point of the dragging track and any point of the dragging track except the starting point of the dragging track, so that the control vector is formed when the dragging track is received. That is, a control vector is correspondingly formed when adding one point to the dragging track except the starting point; if a dragging track is formed by 10 points, 9 control vectors are correspondingly formed.
When the video monitoring equipment is controlled, the video monitoring equipment rotates according to the latest formed control vector when one control vector is formed. In this embodiment, the monitoring video device is a control vector formed by responding to the trail in real time, and the video monitoring device changes relevant parameters of rotation, such as speed, according to the controlled quantity of the control vector while forming the control vector without considering response delay, which is a real-time dynamic response process. Namely, in the control, the dragging track is stopped, and if the control vector is not formed, the motion of the corresponding video monitoring equipment is stopped.
In this embodiment, the rotation of the video monitoring device is to move the monitoring view angle of the video monitoring device, so as to monitor different areas. The rotation can be in the horizontal direction or in the vertical direction or can be completed in the horizontal direction and the vertical direction simultaneously. Typically, the video surveillance equipment is fixed in position or is mounted on a member that allows it to rotate, such as a pan and tilt head. The video monitoring equipment rotates the monitoring visual angle through the movement on the cloud deck. The monitoring visual angle is an area of a video which can be currently acquired by the video monitoring equipment.
Specifically, as shown in fig. 2-4, the arc oc in the figure can be regarded as the dragging track in this embodiment; the starting point of the dragging track formed by the arc oc is o; the dragging track comprises a point a, a point b and a point c, and at least control vectors oa, ob and oc are formed. The monitoring picture 1 shown in fig. 2 is a monitoring picture before the corresponding control vector oc, and fig. 3 is a monitoring picture 2 returned by the video monitoring apparatus after the video monitoring apparatus corresponds to the control vector oc. The reference numeral 13 in the monitoring picture is the monitored target.
In summary, the control method of the video monitoring apparatus according to this embodiment receives the control instruction input by the user on the monitoring picture, so that when the user controls the video monitoring apparatus, the user does not need to consider the control picture and the monitoring picture, and the user controls the monitoring picture to clearly know the currently monitored area and the next area to be monitored, and can return the controlled monitoring picture in time, so that the user feels good, and the control method is simple to control, and the control apparatus that can achieve accurate and fine control by relying on the operation experience without setting a control handle is not needed, thereby having the advantage of low equipment cost.
The following provides a specific method for controlling the rotation of the video monitoring equipment, that is, the method for controlling the rotation of the video monitoring equipment in real time according to the currently formed control vector specifically comprises the following steps: controlling the video monitoring equipment to rotate according to a preset mapping relation between the control vector and the rotation speed of the video monitoring equipment;
the preset mapping relation between the control vector and the motion speed of the video monitoring equipment is as follows:
VW 2+VH 2≤Vmax 2
wherein,
VHfor vertical rotational angular velocity, V, of video surveillance equipmentWFor the horizontal rotational angular velocity, V, of the video monitoring apparatusmaxThe maximum rotation angular velocity of the video monitoring equipment;
l is the control vector, H is the vertical component of the control vector, W is the horizontal component of the control vector,is the angle between the control vector and the horizontal direction.
The control vector is decomposed as shown in fig. 4, and the control vector L is decomposed in a rectangular coordinate system formed by a horizontal axis W and a vertical axis H.For controlling the angle between the vector L and the horizontal axis W, the vector L is decomposed into a vertical component VHAnd a horizontal component VW。
Through the setting of the preset mapping relation between the control vector and the motion speed of the video monitoring equipment, the change of the rotation speed in the rotation process of the video monitoring equipment can be realized, the change of the rotation speed can be continuously changed, instead of being changed from one speed to another speed in a step mode, the control can be realized on a monitoring picture, the result can be fed back in real time, the monitoring visual angle of the video monitoring equipment is turned to a required monitoring area as required, and a user can immediately stop dragging, so that the control is accurate and simple.
In a specific implementation process, the existing 4-direction, 8-direction or 16-direction control can be simulated, namely a rectangular coordinate system is established, and 360 degrees are equally divided into 4-direction, 8-direction or 16-direction; after each control vector is generated, the formed control vector takes the starting point of the control vector as the origin of a horizontal coordinate system, the horizontal coordinate system is established, and the direction in which the control vector is positioned is judged, and each specific direction corresponds to a rotating speed or each specific direction corresponds to an angle which rotates towards a certain direction by taking the current position of the video monitoring equipment as the starting point.
In a specific process of implementing monitoring, when a monitoring device cannot continuously track a monitoring target, the monitoring target needs to be continuously tracked by the next device. In order to achieve the above object, the control method of the present embodiment adopts linkage control to implement the following steps:
the control method of the video monitoring equipment comprises the following steps that a plurality of video monitoring equipment are controlled;
before controlling the first video monitoring equipment to move in real time according to the currently formed control vector, judging whether the monitoring visual angle of the first video monitoring equipment exceeds a preset position according to the currently formed control vector;
if so, controlling the monitoring visual angle of the second video monitoring equipment to move to the linkage preset position for continuous monitoring, and switching the monitoring picture of the first video monitoring equipment into the monitoring picture of the second video monitoring equipment;
the area monitored by the second video monitoring device in the linkage preset position and the area monitored by the first video monitoring device in the preset position are the same area.
In this embodiment, the first video monitoring device may be understood as a video monitoring device currently being controlled, and the second video monitoring device may be understood as a video monitoring device which is linked with the first video monitoring device and can monitor a linkage preset position.
Specifically, how to judge whether the monitoring view angle of the first video monitoring device exceeds a preset position may be conversion according to the current monitoring view angle of the first video monitoring device and the rotation to be performed, so as to judge whether the monitoring view angle of the first video monitoring device exceeds the preset position. The preset position is a position or an area in the monitoring range of the first video monitoring device. The monitoring range of the first video monitoring device is the range which can be covered by the monitoring visual angle from the maximum rotation angle of the first video monitoring device. The preset bits are typically set at or on the boundaries of the monitorable range.
And triggering the next video monitoring device to continuously monitor when the monitoring visual angle of the first video monitoring device is judged and predicted to not meet the requirement of the user on the monitoring area through the preset bit. And after the second video monitoring equipment is triggered, the second video monitoring equipment starts to rotate from the current position so that the monitoring visual angle of the second video monitoring equipment is aligned to the linkage preset position, and the second video monitoring equipment is switched to monitor the required area. In a specific implementation process, the positions of the video monitoring devices are different, and although the same area is monitored, the monitoring angles are different. The monitoring picture is switched to the monitoring picture returned by the second video monitoring device, so that the user can conveniently control the monitoring picture on the second video monitoring device to continuously monitor the target area or the moving target, and the method is simple, convenient and quick to implement.
In specific control, when a certain area is often required to be monitored, it is necessary to clearly know which monitoring devices are in the corresponding area, the operating states of the monitoring devices, and the like. In this embodiment, in order to simply and clearly reflect the above situation, the embodiment is further improved on the basis of any one of the above technical solutions, and specifically, the following steps are performed:
and controlling the video monitoring equipment to rotate in real time according to the currently formed control vector, and simultaneously displaying the current monitoring angle and the monitorable area of the video monitoring equipment on the state diagram of the video monitoring equipment.
As shown in fig. 5, 3 video monitoring devices are included in the video monitoring device status diagram 3, which are 31, 32 and 33 respectively; the monitoring range of the video monitoring device 31 is 311, and the monitoring view angle of the current position is 312; the monitoring range of the video monitoring device 32 is 321, and the monitoring view angle of the current position is 322; the monitoring range of the video monitoring device 33 is 331, and the monitoring view angle of the current position is 332. As can be seen from the figure, the monitoring range and the current monitoring view angle of the video monitoring equipment can be clearly known during control, thereby further facilitating the control.
In a specific implementation process, the picture displaying the location, the monitoring view angle, and the monitoring range of the video monitoring device may also be a three-dimensional perspective view, as shown in fig. 6, where the picture currently displaying the location of the video monitoring device includes 3 video monitoring devices 41, 42, and 43, respectively; the monitoring range of the video monitoring device 41 is 411, and the monitoring view angle of the current position is 412; the monitoring range of the video monitoring device 42 is 421, and the monitoring view angle of the current position is 422; the monitoring range of the video monitoring device 43 is 431, and the monitoring view angle of the current position is 432. As can be seen from the figure, the monitoring range and the current monitoring view angle of the video monitoring equipment can be clearly known when the video monitoring equipment is used, so that the control is further facilitated. When the linkage monitoring is applied, a preset position and a linkage preset position can be displayed in a graph.
In addition, as a further improvement of the present embodiment, the video monitoring device state diagram is further used for displaying the geographical location information of the video monitoring device. The geographical location information may be displayed in a text form on the video monitoring device state diagram, or may be displayed in an image form, specifically as shown in fig. 5, where the video monitoring device state diagram is obtained by using, as a background, location information reflecting a certain area and images of buildings, such as streets and buildings, arranged in the area, and marking information of the location, a current monitoring angle, a monitorable area, and the like of the video monitoring device on the background, so that when controlling, a user can simply and clearly know, according to the video monitoring device state diagram, which device needs to be controlled when monitoring the certain area, and when a certain device fails, which corresponding device can be replaced, and the information is displayed in a graphic form, clearly, simply and easily.
In summary, the video monitoring method according to this embodiment adopts a control method in which different previous monitoring pictures and control pictures are separated, and when a user controls a video monitoring device, the user does not need to consider both the monitoring pictures and the control pictures during control, compared with a conventional control method in which the control pictures and the monitoring pictures are separated, so that user experience is improved; and secondly, compared with the traditional handle control, a special control handle device is not needed to be manufactured, and corresponding software or firmware is operated at a control end, so that the equipment cost is low. Compared with the traditional handle control, the method has the advantages that the corresponding dragging track is formed on the monitoring picture through mouse or touch, the fine control is simpler and more convenient than the handle operation, and the problem that the monitoring visual angle of the video monitoring equipment cannot be aligned to the required area due to too large or too small movement amplitude of the handle is solved.
A second embodiment of the present invention is a control apparatus for video surveillance, as shown in fig. 7, the control apparatus including:
a dragging receiving unit 110 for receiving a dragging trace on the monitoring screen;
a control vector forming unit 120 configured to form a control vector formed by a start point of the dragging track and any one point except the start point in the dragging track; the starting points of the dragging tracks are the starting points of all control vectors in the same dragging track;
and the control unit 130 is configured to control the video monitoring device to rotate in real time according to the currently formed control vector, so as to change the monitoring view angle of the video monitoring device.
The video monitoring device described in this embodiment is a device for implementing any one of the technical solutions of the control methods described in the previous embodiments. The control device of the video monitoring equipment described in this embodiment is a real-time control device for the controlled video monitoring equipment, and is implemented in real time in synchronization even if there are receiving of a dragging track, formation of a control vector, and finally control of the rotation of the video monitoring equipment, and a small response delay may exist in a specific implementation process. Based on the same utilization as the control method in the previous embodiment, the control device of the video monitoring device in this embodiment has the advantages of good user experience, simple implementation, low device cost, and the like when monitoring the video device.
The control unit 120 may implement control on the video monitoring device according to the control vector in a plurality of ways, and this embodiment provides a control unit that is accurate in control and can implement speed adjustment on the video monitoring device while controlling. The control unit is specifically used for controlling the video monitoring equipment to rotate according to the mapping relation between the control vector and the motion of the video monitoring equipment;
the mapping relation between the control vector and the motion of the video monitoring equipment is as follows:
VW 2+VH 2≤Vmax 2
wherein,
VHfor vertical rotational angular velocity, V, of video surveillance equipmentWFor the horizontal rotational angular velocity, V, of the video monitoring apparatusmaxThe maximum rotation angular velocity of the video monitoring equipment;
l is the control vector, H is the vertical component of the control vector, W is the horizontal component of the control vector,is the angle between the control vector and the horizontal direction.
In order to realize the tracking of the target, a plurality of video monitoring devices are generally required to perform relay tracking, so that the control is convenient, and the limitation that each video monitoring device is independently controlled in the past is broken through, a user obtains subsequent video monitoring devices which can be used for tracking through searching, and the subsequent video monitoring devices are switched to be controlled, so that the loss probability of the tracked target is high. The control device of the video monitoring equipment described in this embodiment is connected to the dragging video monitoring equipment in a wired or wireless manner, that is, the number of the equipment connected to the video monitoring equipment controlled by the control device is plural;
the control device of the video monitoring equipment further comprises a linkage triggering unit and a monitoring picture switching unit:
the linkage triggering unit is used for judging whether the monitoring visual angle of the first video monitoring equipment exceeds a preset position according to the currently formed control vector before controlling the first video monitoring equipment to move in real time according to the currently formed control vector;
the control unit is used for controlling the monitoring visual angle of the second video monitoring equipment to move to the linkage preset position for continuous monitoring when the linkage trigger unit judges that the monitoring visual angle of the first video monitoring equipment exceeds the preset position;
the monitoring picture switching unit is used for switching the monitoring picture of the first video monitoring equipment into the monitoring picture of the second video monitoring equipment when the monitoring visual angle of the first video monitoring equipment exceeds a preset position and the monitoring visual angle of the second video monitoring equipment moves to a linkage preset position;
the area monitored by the second video monitoring device in the linkage preset position and the area monitored by the first video monitoring device in the preset position are the same area.
The control device controls a plurality of video monitoring devices, and tracking of the monitored target is simply and conveniently realized by adopting linkage control.
As a further improvement of this embodiment, the control device of the video monitoring apparatus further includes:
and the monitoring state display unit is used for displaying the current monitoring angle and the monitorable area of the video monitoring equipment on the state diagram of the video monitoring equipment while controlling the video monitoring equipment to rotate in real time according to the currently formed control vector. Through the setting of the monitoring state display unit, the monitoring state of the current video monitoring equipment can be clearly reflected so as to facilitate timely adjustment, and therefore the practicability is improved.
In particular, the video surveillance device state diagram is further used to display the geographical location of the video surveillance device. The geographical position information can be character information or picture information. If the picture information can be a map or a simulation model graph, the introduction of the geographical position information increases the information which can be fed back by the monitoring state display unit again, thereby facilitating the control of the area.
In addition, the present invention provides another embodiment, the control device of the video monitoring apparatus includes at least one processor 210 (e.g., CPU), at least one interface 220 or other communication interfaces, a memory 230 and at least one communication bus 240, for implementing connection communication between these devices. Processor 210 is used to execute executable modules stored in memory 230, such as: a computer program. The Memory 230 may include a Random Access Memory (RAM), a read-only Memory (ROM), and a non-volatile Memory (non-volatile Memory), for example: at least one disk storage. The communication connection between the system gateway and at least one other network element is realized through at least one network interface 220 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used.
In some embodiments, memory 230 stores a program that is executable by processor 210, and the program operates to perform at least the following functions:
receiving a dragging track on a monitoring picture;
forming a control vector formed by connecting a starting point of a dragging track with any one point in the dragging track except the starting point of the dragging track; the starting points of the dragging tracks are the starting points of all control vectors in the same dragging track;
and after each control vector is formed, controlling the video monitoring equipment to rotate in real time according to the currently formed control vector so as to change the monitoring visual angle of the video monitoring equipment.
In summary, the control method for the video monitoring device according to this embodiment adopts the control vector to realize the overall control of the movement direction, speed and monitoring state of the video monitoring device, so that the method has the advantages of simple implementation, convenient control and good use experience.
As will be appreciated by one of ordinary skill in the art, various aspects of the invention, or possible implementations of various aspects, may be embodied as a system, method, or computer program product. Accordingly, aspects of the present invention, or possible implementations of aspects, may take the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, etc.) or an embodiment combining software and hardware aspects that may all generally be referred to herein as a "circuit," module "or" system. Furthermore, aspects of the invention, or possible implementations of aspects, may take the form of a computer program product, which refers to computer-readable program code stored in a computer-readable medium.
The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing, such as Random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, and portable read-only memory (CD-ROM).
A processor in the computer reads the computer-readable program code stored in the computer-readable medium, so that the processor can perform the functional actions specified in each step, or a combination of steps, in the flowcharts; and means for generating a block diagram that implements the functional operation specified in each block or a combination of blocks.
The computer readable program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. It should also be noted that, in some alternative implementations, the functions noted in the flowchart or block diagram block may occur out of the order noted in the figures. For example, two steps or two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A method of controlling a video surveillance apparatus, comprising:
receiving a dragging track on a monitoring picture;
forming a control vector formed by connecting a starting point of a dragging track with any one point in the dragging track except the starting point of the dragging track; the starting points of the dragging tracks are the starting points of all control vectors in the same dragging track;
and after each control vector is formed, controlling the video monitoring equipment to rotate in real time according to the currently formed control vector so as to change the monitoring visual angle of the video monitoring equipment.
2. The control method of a video monitoring apparatus according to claim 1,
the real-time control of the video monitoring equipment according to the currently formed control vector specifically comprises the following steps: controlling the video monitoring equipment to rotate according to a preset mapping relation between the control vector and the motion speed of the video monitoring equipment;
the preset mapping relation between the control vector and the motion speed of the video monitoring equipment is as follows:
VW 2+VH 2≤Vmax 2
wherein,
VHfor vertical rotational angular velocity, V, of video surveillance equipmentWFor the horizontal rotational angular velocity, V, of the video monitoring apparatusmaxThe maximum rotation angular velocity of the video monitoring equipment;
l is the control vector, H is the vertical component of the control vector, W is the horizontal component of the control vector,is the angle between the control vector and the horizontal direction.
3. The method of controlling a video monitoring apparatus according to claim 1 or 2, wherein the video monitoring apparatus is plural;
before controlling the first video monitoring equipment to move in real time according to the currently formed control vector, judging whether the monitoring visual angle of the first video monitoring equipment exceeds a preset position according to the currently formed control vector;
if so, controlling the monitoring visual angle of the second video monitoring equipment to move to the linkage preset position for continuous monitoring, and switching the monitoring picture of the first video monitoring equipment into the monitoring picture of the second video monitoring equipment;
the area monitored by the second video monitoring device in the linkage preset position and the area monitored by the first video monitoring device in the preset position are the same area.
4. The method according to claim 1 or 2, wherein the current monitoring angle and the monitorable area of the video monitoring device are displayed on the video monitoring device state diagram while the video monitoring device is controlled to rotate in real time according to the currently formed control vector.
5. The method of claim 4, wherein the video surveillance device state diagram is further used to display geographical location information of the video surveillance device.
6. A control apparatus for video surveillance, comprising:
the dragging receiving unit is used for receiving dragging tracks on the monitoring picture;
the control vector forming unit is used for forming a control vector formed by a starting point of the dragging track and any one point except the starting point in the dragging track; the starting points of the dragging tracks are the starting points of all control vectors in the same dragging track;
and the control unit is used for controlling the video monitoring equipment to rotate in real time according to the currently formed control vector so as to change the monitoring visual angle of the video monitoring equipment.
7. The control device of the video monitoring apparatus according to claim 6, wherein the control unit is specifically configured to control the video monitoring apparatus to rotate according to a mapping relationship between the control vector and the motion of the video monitoring apparatus;
the mapping relation between the control vector and the motion of the video monitoring equipment is as follows:
VW 2+VH 2≤Vmax 2
wherein,
VHfor vertical rotational angular velocity, V, of video surveillance equipmentWFor the horizontal rotational angular velocity, V, of the video monitoring apparatusmaxThe maximum rotation angular velocity of the video monitoring equipment;
l is the control vector, H is the vertical component of the control vector, W is the horizontal component of the control vector,is the angle between the control vector and the horizontal direction.
8. The control device of video monitoring equipment according to claim 6 or 7, wherein the video monitoring equipment controlled by the control device is connected with a plurality of pieces of equipment;
the control device of the video monitoring equipment further comprises a linkage triggering unit and a monitoring picture switching unit:
the linkage triggering unit is used for judging whether the monitoring visual angle of the first video monitoring equipment exceeds a preset position according to the currently formed control vector before controlling the first video monitoring equipment to move in real time according to the currently formed control vector;
the control unit is further used for controlling the monitoring visual angle of the second video monitoring equipment to move to the linkage preset position for continuous monitoring when the linkage trigger unit judges that the monitoring visual angle of the first video monitoring equipment exceeds the preset position;
the monitoring picture switching unit is used for switching the monitoring picture of the first video monitoring equipment into the monitoring picture of the second video monitoring equipment when the monitoring visual angle of the first video monitoring equipment exceeds a preset position and the monitoring visual angle of the second video monitoring equipment moves to a linkage preset position;
the area monitored by the second video monitoring device in the linkage preset position and the area monitored by the first video monitoring device in the preset position are the same area.
9. The control device of the video monitoring apparatus according to claim 6 or 7, further comprising:
and the monitoring state display unit is used for displaying the current monitoring angle and the monitorable area of the video monitoring equipment on the state diagram of the video monitoring equipment while controlling the video monitoring equipment to rotate in real time according to the currently formed control vector.
10. The control device of the video monitoring apparatus according to claim 9, wherein the video monitoring apparatus state diagram is further used to display the geographical location of the video monitoring apparatus.
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