CN109905679B - Monitoring method, device and system - Google Patents
Monitoring method, device and system Download PDFInfo
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- CN109905679B CN109905679B CN201910281977.8A CN201910281977A CN109905679B CN 109905679 B CN109905679 B CN 109905679B CN 201910281977 A CN201910281977 A CN 201910281977A CN 109905679 B CN109905679 B CN 109905679B
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Abstract
The invention provides a monitoring method, which comprises the following steps: judging whether a person exists in the first area or not according to an image acquired by the camera; when a person is in the first area, controlling the camera to track the person and acquiring the moving direction of the person; and adjusting the camera which the person possibly moves to a second area according to the moving direction of the person so as to align the camera of the second area with the moving direction of the person, wherein the second area is adjacent to the first area. The invention is more convenient for monitoring.
Description
Technical Field
The invention relates to the technical field of security and protection, in particular to a monitoring method, a monitoring device and a monitoring system.
Background
When monitoring an existing area, a camera is generally arranged at an unspecified place, for example, a place where a safety problem may be easy to occur. When suspicious people enter a monitored area, the monitoring cannot be well carried out, and the monitored people are easily lost during monitoring.
Disclosure of Invention
Therefore, the present invention needs to provide a monitoring method, device and system, which is convenient for monitoring and has higher reliability.
The invention provides a monitoring method, wherein a monitored area is divided into a plurality of areas, each area is provided with a camera, and the cameras can monitor the whole range of the area; the method comprises the following steps:
judging whether a person exists in the first area or not according to an image acquired by the camera;
when a person is in the first area, controlling the camera to track the person and acquiring the moving direction of the person;
and adjusting the camera which the person possibly moves to a second area according to the moving direction of the person so as to align the camera of the second area with the moving direction of the person, wherein the second area is adjacent to the first area.
Preferably, the method further comprises:
and when the person moves out of the range of the first area, controlling the camera in the first area to recover to the original state.
Preferably, the original state is: the camera monitors the region at a preset rotating speed.
Preferably, it is determined whether the person moves out of the first area range by:
determining the position coordinates of the person when the person moves through a distance sensor, wherein the distance sensor is arranged on the camera;
determining that the person has moved outside the first area range when one of the position coordinates exceeds a corresponding maximum value;
determining that the person has not moved outside the first area range when all values of the position coordinates do not exceed the respective maximum values.
Preferably, before acquiring the moving direction of the person, the method further comprises:
judging whether face information is acquired or not and judging whether the face information is legal face information or not;
and when any one of the judgment results is negative, acquiring the moving direction of the person.
And when the judgment results are yes, controlling the camera in the first area to recover to the original state.
Preferably, after the adjusting the camera to which the person is likely to move to the second area, the method further comprises:
and if no person is detected to enter the second area within the preset time, adjusting the operation modes of the cameras of the first area and other second areas adjacent to the first area.
Preferably, the adjusting the operation mode of the camera in the other second area adjacent to the first area includes:
and accelerating the rotating speed of the cameras in the first area and other second areas adjacent to the first area until one camera catches the person.
The invention also provides a monitoring device, wherein the monitored area is divided into a plurality of areas, each area is provided with a camera, and the cameras can monitor the whole range of the area; the device comprises:
the judging module is used for judging whether the first area belongs to a person or not according to the image acquired by the camera;
the execution module is used for controlling the camera to track the person and acquiring the moving direction of the person when the person exists in the first area;
the adjusting module is used for adjusting the camera which the person may move to the second area according to the moving direction of the person, so that the camera of the second area is aligned with the moving direction of the person, and the second area is adjacent to the first area.
Preferably, the adjusting module is further configured to:
and after adjusting the camera which the person may move to the second area, when no person is detected to enter the second area within a preset time, adjusting the operation mode of the cameras of other second areas adjacent to the first area.
The invention also provides a monitoring system, wherein the monitored area is divided into a plurality of areas, the system comprises a controller, a memory and a plurality of cameras, each area is provided with the camera, the cameras can monitor the whole range of the area, the memory stores software codes, and the controller executes the following steps when executing the software codes:
judging whether a person exists in the first area or not according to an image acquired by the camera;
when a person is in the first area, controlling the camera to track the person and acquiring the moving direction of the person;
and adjusting the camera which the person possibly moves to a second area according to the moving direction of the person so as to align the camera of the second area with the moving direction of the person, wherein the second area is adjacent to the first area.
Therefore, the invention can well prevent the suspicious person to be monitored from being lost in the monitoring process and improve the monitoring safety.
Drawings
Fig. 1 is a schematic diagram of a monitored area after being divided.
FIG. 2 is a flow chart of the method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
The invention provides a monitoring method which can be applied to the camera monitoring of a monitored area. As shown in fig. 1, the monitored area is divided into several areas, which may be circular or square, wherein each area is provided with a camera (indicated by black dots in fig. 1), the camera is a rotatable monitoring camera, the camera can monitor the whole range of the area, and the camera can be placed in the center of the monitored area or at a predetermined position. The predetermined position is taken as the origin of the area, so that the coordinate position of the camera in the area can be determined, or the predetermined position is taken as the origin of the whole monitored area, so that the coordinate position of the camera in different areas can be determined.
In this embodiment, as shown in fig. 2, the monitoring method may include the following steps:
s10: and judging whether the first region belongs to a person or not according to an image acquired by the camera.
As shown in fig. 1, it is possible to determine whether or not the first area a has a person (the person is indicated by a circle filled with oblique lines in fig. 1) from the image acquired by the camera.
S20: when a person is in the first area, the camera is controlled to track the person, and the moving direction of the person is acquired.
The person may be locked according to a specific characteristic of the person to control the camera to track the person, and the moving direction of the person may be determined according to an angle of rotation of the camera and/or a distance sensor provided in the first area, and may be moved to a second area on the right side of the first area.
S30: and adjusting the camera which the person possibly moves to a second area according to the moving direction of the person so as to align the camera of the second area with the moving direction of the person, wherein the second area is adjacent to the first area.
With continued reference to fig. 1, the area to which the direction of movement is directed is a second area B in which the person may move.
The invention can align the camera in the second area to the moving direction of the person in advance, so that when the person enters the range of the second area, the camera in the second area can quickly capture the person to monitor the person. It is understood that the direction of movement of the camera towards the person may refer to: the intersection point of the most central extension line monitored by the camera and the extension line of the moving direction of the person is on the boundary line of the first area and the second area.
The invention can prevent the loss of the monitored person, and the camera of the second area can monitor the suspicious person in time, thereby ensuring better security protection effect and safer monitored area.
As shown in fig. 2, in the present embodiment, the method further includes:
s30: and judging that the person moves out of the first area range, if so, executing the step S40, otherwise, returning to execute the step S30.
S40: and controlling the camera in the first area to restore to the original state.
Whether the person leaves the first area or not can be judged according to the distance sensor, if the person leaves the first area, the camera in the first area can be restored to the original state, and other suspicious persons can be subjected to video monitoring, so that the monitoring is further facilitated.
Preferably, the original state is: the camera monitors the region at a preset rotating speed, so that the camera can monitor the first region in a circulating mode in an initial state.
In step S30, it may be determined whether the person moves out of the first area range by:
s31: and determining the position coordinates of the person when the person moves through a distance sensor, wherein the distance sensor is arranged on the camera.
When the distance sensor is arranged on the camera, the coordinate position of the camera can be used as the coordinate position of the distance sensor, and then the coordinate position of the person in the first area or the whole monitored area can be determined according to the rotating angle of the camera and the distance between the person and the distance sensor, which is obtained by the distance sensor, and can be expressed by (x, y), so that the processing is simpler.
S32: determining that the person has moved outside the first area range when a value in the position coordinates exceeds a corresponding maximum value.
S33: determining that the person has not moved outside the first area range when all values of the position coordinates do not exceed the respective maximum values.
If x is greater than the coordinates of the vertical boundary line and/or y is greater than the coordinates of the vertical boundary line, the person has moved out of the first area range, and if both x and y are not exceeded, the person has not moved out of the first area range.
In this embodiment, before acquiring the moving direction of the person, the method may further include:
s01: and judging whether the face information is acquired or not and whether the face information is legal face information or not, if any judgment result is negative, acquiring the moving direction of the person, and if both judgment results are positive, executing step S40.
When the face information of the person is not acquired, the safety of the person cannot be determined, so that the behavior of the person needs to be monitored.
After step S30, the method may further include:
s50: and if no person is detected to enter the second area within the preset time, adjusting the operation modes of the cameras of the first area and other second areas adjacent to the first area.
Specifically, the step may specifically include: and accelerating the rotating speed of the cameras in the first area and other second areas adjacent to the first area until one camera catches the person.
If it is not detected that a person enters the second area within a predetermined time, it may be determined that the person does not enter the second area according to an actual path, and in order to further prevent the person from being lost in monitoring, the person may be monitored simultaneously by the cameras of the first area and other second areas adjacent to the first area to find a suspicious person. Especially, the rotating speed of the camera is increased, so that suspicious people can be found more quickly.
The present invention also provides a monitoring device, which may include:
the first judgment module is used for judging whether a person exists in the first area according to the image acquired by the camera;
the execution module is used for controlling the camera to track the person and acquiring the moving direction of the person when the person exists in the first area;
the adjusting module is used for adjusting the camera which the person may move to the second area according to the moving direction of the person, so that the camera of the second area is aligned with the moving direction of the person, and the second area is adjacent to the first area.
The adjustment module is further configured to: and when the person moves out of the range of the first area, controlling the camera in the first area to recover to the original state.
Preferably, the original state is: the camera monitors the region at a preset rotating speed.
The adjustment module may specifically be configured to:
determining the position coordinates of the person when the person moves through a distance sensor, wherein the distance sensor is arranged on the camera;
determining that the person has moved outside the first area range when one of the position coordinates exceeds a corresponding maximum value;
determining that the person has not moved outside the first area range when all values of the position coordinates do not exceed the respective maximum values.
The device further comprises:
the second judgment module is used for judging whether face information is acquired and whether the face information is legal face information before the moving direction of the person is acquired;
and the execution module is also used for acquiring the moving direction of the person when any one of the judgment results is negative.
And the execution module is also used for controlling the camera in the first area to be restored to the original state when the judgment results are yes.
Preferably, the adjusting module is further configured to:
and after adjusting the camera which the person may move to the second area, when no person is detected to enter the second area within a preset time, adjusting the operation mode of the cameras of other second areas adjacent to the first area.
Preferably, the adjusting the operation mode of the camera in the other second area adjacent to the first area includes:
and accelerating the rotating speed of the cameras in the first area and other second areas adjacent to the first area until one camera catches the person.
The invention also provides a monitoring system, wherein the monitored area is divided into a plurality of areas, the system comprises a controller, a memory and a plurality of cameras, each area is provided with the camera, the cameras can monitor the whole range of the area, the memory stores software codes, and the controller executes the following steps when executing the software codes:
judging whether a person exists in the first area or not according to an image acquired by the camera;
when a person is in the first area, controlling the camera to track the person and acquiring the moving direction of the person;
and adjusting the camera which the person possibly moves to a second area according to the moving direction of the person so as to align the camera of the second area with the moving direction of the person, wherein the second area is adjacent to the first area.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and the above embodiments are only used for explaining the claims. The scope of the invention is not limited by the description. Any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present disclosure are included in the scope of the present invention.
Claims (10)
1. A monitoring method is characterized in that a monitored area is divided into a plurality of areas, wherein each area is provided with a camera, and the cameras can monitor the whole range of the area; the method comprises the following steps:
judging whether a person exists in the first area or not according to an image acquired by the camera;
when a person is in the first area, controlling the camera to track the person and acquiring the moving direction of the person;
adjusting a camera of a second area to which the person is likely to move according to the moving direction of the person, so that the camera of the second area is aligned with the moving direction of the person, and the second area is adjacent to the first area; the camera of the second area aims at the moving direction of the person, and the point where the extended line of the center monitored by the camera is intersected with the extended line of the moving direction of the person is on the boundary line of the first area and the second area.
2. The monitoring method of claim 1, further comprising:
and when the person moves out of the range of the first area, controlling the camera in the first area to recover to the original state.
3. The monitoring method according to claim 2, wherein the original state is: the camera monitors the region at a preset rotating speed.
4. A method of monitoring as claimed in claim 2, wherein it is determined whether the person moves outside the first area range by:
determining the position coordinates of the person when the person moves through a distance sensor, wherein the distance sensor is arranged on the camera;
determining that the person has moved outside the first area range when one of the position coordinates exceeds a corresponding maximum value;
determining that the person has not moved outside the first area range when all values of the position coordinates do not exceed the respective maximum values.
5. The monitoring method of claim 1, wherein prior to obtaining the direction of movement of the person, the method further comprises:
judging whether face information is acquired or not and judging whether the face information is legal face information or not;
if any one of the judgment results is negative, acquiring the moving direction of the person;
and when the judgment results are yes, controlling the camera in the first area to recover to the original state.
6. The method of monitoring of claim 1, wherein after said adjusting the camera to which the person is likely to move to the second area, the method further comprises:
and if no person is detected to enter the second area within the preset time, adjusting the operation modes of the cameras of the first area and other second areas adjacent to the first area.
7. The monitoring method according to claim 6, wherein the adjusting the operation mode of the cameras of the other second areas adjacent to the first area comprises:
and accelerating the rotating speed of the cameras in the first area and other second areas adjacent to the first area until one camera catches the person.
8. A monitoring device is characterized in that a monitored area is divided into a plurality of areas, wherein each area is provided with a camera, and the cameras can monitor the whole range of the area; the device comprises:
the judging module is used for judging whether the first area belongs to a person or not according to the image acquired by the camera;
the execution module is used for controlling the camera to track the person and acquiring the moving direction of the person when the person exists in the first area;
the adjusting module is used for adjusting the camera which is possibly moved to a second area by the person according to the moving direction of the person, so that the camera of the second area is aligned with the moving direction of the person, and the second area is adjacent to the first area; the camera of the second area aims at the moving direction of the person, and the point where the extended line of the center monitored by the camera is intersected with the extended line of the moving direction of the person is on the boundary line of the first area and the second area.
9. The monitoring device of claim 8, wherein the adjustment module is further configured to:
and after adjusting the camera which the person may move to the second area, when no person is detected to enter the second area within a preset time, adjusting the operation mode of the cameras of other second areas adjacent to the first area.
10. A monitoring system, a monitored area is divided into a plurality of areas, the system comprises a controller, a memory and a plurality of cameras, each area is provided with the camera, the cameras can monitor the whole range of the area, the memory stores software codes, and the controller executes the following steps when executing the software codes:
judging whether a person exists in the first area or not according to an image acquired by the camera;
when a person is in the first area, controlling the camera to track the person and acquiring the moving direction of the person;
adjusting a camera of a second area to which the person is likely to move according to the moving direction of the person, so that the camera of the second area is aligned with the moving direction of the person, and the second area is adjacent to the first area; the camera of the second area aims at the moving direction of the person, and the point where the extended line of the center monitored by the camera is intersected with the extended line of the moving direction of the person is on the boundary line of the first area and the second area.
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| CN112653832A (en) * | 2019-10-10 | 2021-04-13 | 华为技术有限公司 | Monitoring method, device and equipment |
| CN111243247A (en) * | 2020-01-07 | 2020-06-05 | 深圳数位传媒科技有限公司 | Alarm method and device for area monitoring |
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| CN104660998A (en) * | 2015-02-16 | 2015-05-27 | 苏州阔地网络科技有限公司 | Relay tracking method and system |
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| US6359647B1 (en) * | 1998-08-07 | 2002-03-19 | Philips Electronics North America Corporation | Automated camera handoff system for figure tracking in a multiple camera system |
| CN101572804B (en) * | 2009-03-30 | 2012-03-21 | 浙江大学 | Multi-camera intelligent control method and device |
| WO2011010490A1 (en) * | 2009-07-22 | 2011-01-27 | オムロン株式会社 | Surveillance camera terminal |
| JP5834254B2 (en) * | 2014-04-11 | 2015-12-16 | パナソニックＩｐマネジメント株式会社 | People counting device, people counting system, and people counting method |
| CN104125433A (en) * | 2014-07-30 | 2014-10-29 | 西安冉科信息技术有限公司 | Moving object video surveillance method based on multi-PTZ (pan-tilt-zoom)-camera linkage structure |
| CN105245850B (en) * | 2015-10-27 | 2019-11-26 | 太原市公安局 | The methods, devices and systems of across monitoring camera carry out target tracking |
| CN106657775B (en) * | 2016-11-28 | 2020-10-16 | 浙江宇视科技有限公司 | Tracking monitoring method, device and system |
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| CN104660998A (en) * | 2015-02-16 | 2015-05-27 | 苏州阔地网络科技有限公司 | Relay tracking method and system |
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