CN104240433A - Camera monitoring alarm method and device - Google Patents
Camera monitoring alarm method and device Download PDFInfo
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- CN104240433A CN104240433A CN201310230608.9A CN201310230608A CN104240433A CN 104240433 A CN104240433 A CN 104240433A CN 201310230608 A CN201310230608 A CN 201310230608A CN 104240433 A CN104240433 A CN 104240433A
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Abstract
The invention discloses a camera monitoring alarm method and device. The method and device are used for monitoring the positions and movement conditions of a camera in real time and can send out alarm information in time when the camera moves. The method includes the steps that movement indexes which represent movement changes of the monitored camera are collected in real time; the movement indexes are compared with a preset corresponding alarm threshold value; the corresponding alarm information is output according to the comparison result that the movement indexes exceed the alarm threshold value.
Description
Technical field
The present invention relates to monitoring alarm technical field, particularly a kind of video camera alarming method by monitoring and device.
Background technology
In present daily life, substantially there is the situation existing and use video camera to carry out monitoring scene everywhere, such as probe transport, community probe etc.In the camera supervised process of use, video camera plays the shoot function of monitoring scene, general it all can be allowed to fix or the region of reciprocal tour setting, if suffer artificial destruction, such as to knock etc., the improper displacement of the body of video camera or rotation of lens can be caused, except human factor, long-term outdoor environment also may cause support to be damaged, indirectly cause the abnormal displacement of video camera, these situations all by causing the guarded region generation ANOMALOUS VARIATIONS of the video camera after being shifted, cannot reach default monitoring object.
Existing the main of monitoring to camera position and motion change leans on video camera self, adopts image intelligent algorithm, the ANOMALOUS VARIATIONS such as whether the video background mutation analysis video camera gathered by comparison is shifted, rotation.
The problem that discrimination is low and rate of false alarm is high is there is in this image intelligent algorithm in following several scene:
1, monitored scene brightness is low, such as night and shady place;
2, video content change is greatly under the circumstances such as (monitored scene motion object many, amount of exercise greatly);
3, shadow change greatly, weather effect.
In these sights, low by the accuracy rate of the method identification of Intelligent Recognition, and there is a large amount of false alarm phenomenons, accurately cannot judge the abnormal conditions of video camera.And adopt image intelligent algorithm often to there is time delay, in supervisory system, the video camera for vast number cannot feed back abnormal information in time.
In sum, under prior art, managerial personnel cannot the duty of grasp video camera accurately and timely.
Summary of the invention
Embodiments provide a kind of video camera alarming method by monitoring and device, in order to position and the motion conditions of real-time CCTV camera, when the situation of displacement occurs video camera, warning message can be sent timely.
A kind of video camera alarming method by monitoring that the embodiment of the present invention provides, the method comprises:
Real-time Collection is for characterizing the motion index of monitored picture pick-up device motion change;
Described motion index is compared with the corresponding alarm threshold value preset;
To the comparative result exceeding described alarm threshold value, export corresponding warning message.
A kind of video camera monitoring alarm that the embodiment of the present invention provides, this device comprises:
Acquisition module, for Real-time Collection for characterizing the motion index of monitored picture pick-up device motion change;
Comparison module, for comparing described motion index with the corresponding alarm threshold value preset;
Output module, for the comparative result exceeding described alarm threshold value, exports corresponding warning message.
The embodiment of the present invention, by every motion index of real-time acquisition camera, the current intelligence of real-time grasp video camera, when arbitrary motion index exceedes default threshold value, judge to occur extremely, thus timely output alarm information, make managerial personnel can grasp the duty of video camera timely and accurately.
Accompanying drawing explanation
The schematic flow sheet of the video camera alarming method by monitoring that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the video camera monitoring alarm that Fig. 2 provides for the embodiment of the present invention;
The schematic flow sheet of the video camera alarming method by monitoring that Fig. 3 provides for the embodiment of the present invention and device.
Embodiment
In order to can early warning in time when video camera occurs abnormal, notify that keeper is to event emergency treatment, embodiments provide a kind of video camera alarming method by monitoring and device, in order to position and the motion conditions of real-time CCTV camera, when the situation of displacement occurs video camera, warning message can be sent timely.
First, a kind of video camera alarming method by monitoring of the embodiment of the present invention, as shown in Figure 1, the method comprises:
S101, Real-time Collection is for characterizing the motion index of monitored picture pick-up device motion change;
S102, compares described motion index with the corresponding alarm threshold value preset;
S103, to the comparative result exceeding described alarm threshold value, exports corresponding warning message.
In embodiments of the present invention, adopt a kind of monitoring mechanism, be provided with alarm threshold value as required, compare with the motion index of Real-time Collection picture pick-up device, exceed the situation of threshold value, immediately output alarm information.Be understandable that described warning message can adopt the mode superior equipment of information to export, also can directly the form such as employing sound, light directly export, object is that the picture pick-up device reminding supvr monitored in time there occurs abnormal displacement.
Be understandable that, described motion index comprises the parameter value of the motion change of monitored picture pick-up device in multiple dimension, and each class parameter value corresponding is provided with different alarming threshold values.Such as, because multiple physical quantity all can be used for the motion of a sign object, speed, acceleration, so when gathering, which parameter value also can set described needs as required gathers, and for different alarm threshold values is set.
Further, alarm threshold value described in each is Multi-stage alarming threshold value, enables the corresponding grade of described alarm threshold value according to the applied environment of monitored picture pick-up device.
State on the invention in embodiment, be actually the trigger condition of the different application scenarios setting abnormal displacements in various degree for video camera, it is a kind of measure ensureing the accuracy of this monitoring method, for this parameter of acceleration, when outdoor utility, it is high when the ratio that obviously should arrange for the alarm threshold value of acceleration is applied in indoor, outdoor owing to there is the impact of the natural situations such as wind speed, slighter rocking should not judge that it there occurs abnormal displacement, and the possibility that indoor affect by nature situation due to video camera is lower, even if there occurs rocking of the above-mentioned degree in similar outdoor, still may have occurred abnormal displacements.
Preferably, described parameter value can be following one or more:
The accekeration of monitored picture pick-up device in multiple dimension;
The velocity amplitude of monitored picture pick-up device in multiple dimension;
The magnitude of angular velocity of monitored picture pick-up device in multiple dimension.
Whether accekeration can be used for characterizing monitored picture pick-up device and be clashed into; Can be used for characterizing monitored picture pick-up device for fixing video camera velocity amplitude and whether abnormal displacement occurs; For the video camera of fixing rotation camera lens, magnitude of angular velocity can be used for characterizing monitored picture pick-up device and whether there occurs anomalous rotation.
Be understandable that, relatively time, not only can single parameter value be compared, can also judge according to the summation of the accumulated value of a period of time of a certain class parameter value.
On the basis of above-described embodiment, the described comparative result to exceeding described alarm threshold value, exports corresponding warning message, preferably specifically comprises:
When parameter value single in individual single dimension one by one in office exceeds the current alarm threshold value enabled, export corresponding inferior grade warning message;
When parameter value continuous several times in individual single dimension one by one in office exceeds the current alarm threshold value enabled, export corresponding high-grade warning message.
Due to the inventive method employing is real-time monitoring picture pick-up device, be understandable that, for the situation exceeding alarm threshold value, the situation repeatedly occurring exceeding threshold value continuously compares just single, and to exceed the situation of threshold value obviously more serious, can be showed by warning message in various degree, be convenient to managerial personnel and understand.An embodiment is provided to be convenient to understand:
Embodiment one
When the accekeration a collecting a certain dimension exceedes the current acceleration rate threshold preset of enabling, namely | a|>A, then judge that video camera is subjected to displacement.Obtain a in continuous several times sampling (number of times can set as required) to exceed default upper limit threshold value and be judged to be violent displacement.
Be understandable that, described warning message comprises according to the type of alarm of the correspondence of different parameters value setting with for adding up the alert data that this exceeds the parameter value of alarm threshold value.
When output alarm information, alert data is the data of statistics picture pick-up device in concrete displacement or angle, and type of alarm is the corresponding judged result drawn according to parameter value, as above-mentioned specific embodiment one, is generally Word message.
Type of alarm pre-sets; it is the different Word message exceeding threshold value setting according to different parameters value; such as magnitude of angular velocity is abnormal; can be judged to be anomalous rotation, acceleration exceeds lower threshold for abnormal mobile, exceeds upper limit threshold for clashing into; etc.; this type of alarm sets as required, and concrete setting rule is not protection content of the present invention, is not specifically addressed.
On the basis of above-described embodiment, preferably, while the described warning message of output, also send for controlling the out-of-work look-at-me of described monitored picture pick-up device to monitored picture pick-up device.
Arranging this look-at-me contributes to when there is alarm condition, time managerial personnel cannot carry out manually operated to this picture pick-up device in time, can directly be quit work by faulty equipment by this method.
Preferably, described Real-time Collection, for characterizing the motion index of monitored picture pick-up device motion change, specifically comprises:
Periodic Real-time Collection is for characterizing the motion index of monitored picture pick-up device motion change;
When each cycle starts, delete the motion index of upper cycle collection.
The data of the parameters value that Real-time Collection obtains, can carry out timing and delete, avoid the overabundance of data stored according to the cycle arranged.
Match with said method, the embodiment of the present invention additionally provides a kind of video camera monitoring alarm, and as shown in Figure 2, this device comprises:
Acquisition module 1, for Real-time Collection for characterizing the motion index of monitored picture pick-up device motion change;
Comparison module 2, for comparing described motion index with the corresponding alarm threshold value preset;
Output module 3, for the comparative result exceeding described alarm threshold value, exports corresponding warning message.
In embodiments of the present invention, achieve a kind of monitoring mechanism by the acquisition module, comparison module and the output module that arrange, be provided with alarm threshold value as required, compare with the motion index of Real-time Collection picture pick-up device, exceeding the situation of threshold value, immediately output alarm information.Be understandable that described warning message can adopt the mode superior equipment of information to export, also can directly the form such as employing sound, light directly export, object is that the picture pick-up device reminding supvr monitored in time there occurs abnormal displacement.
Be understandable that, from above-mentioned module specific to hardware device, output module is generally by interface output alarm information, described interface can comprise the common type such as SPI, IIC, SDIO, serial ports, RS485, Ethernet interface, IO, described acquisition module can pass through sensor (acceleration transducer, gyroscope etc.) gather motion index, described comparison module can realize comparison procedure by processors such as CPU.
Usually, described motion index is multiple, and each motion index corresponding is provided with different alarming threshold values.
Preferably, this device also comprises induction and arranges module, when being Multi-stage alarming threshold value for alarm threshold value described in each, enables the corresponding grade of described alarm threshold value according to the applied environment of monitored picture pick-up device.
On the basis of above-described embodiment, described motion index comprises the parameter value of monitored picture pick-up device in multiple dimension, and the kind of described parameter value is following one or more:
The accekeration of monitored picture pick-up device in multiple dimension;
The velocity amplitude of monitored picture pick-up device in multiple dimension;
The magnitude of angular velocity of monitored picture pick-up device in multiple dimension.
Preferably, described output module, specifically for:
When parameter value single in individual single dimension one by one in office exceeds the current alarm threshold value enabled, export corresponding inferior grade warning message;
When parameter value continuous several times in individual single dimension one by one in office exceeds the current alarm threshold value enabled, export corresponding high-grade warning message.
Described warning message preferably includes according to the type of alarm of the correspondence of different parameters value setting with for adding up the alert data that this exceeds the parameter value of alarm threshold value.
Preferably, described output module while the described warning message of output also for, send for for controlling the out-of-work look-at-me of described monitored picture pick-up device to monitored picture pick-up device.
On the basis of above-described embodiment, described acquisition module specifically for:
The motion index for characterizing monitored picture pick-up device motion change is gathered time periodic;
When each cycle starts, delete the motion index of upper cycle collection.
Video camera monitoring alarm of the present invention carries out parameter acquisition work to video camera due to needs, general and monitored video camera is set together, closely can be fixed on inside or the outside of video camera, ensure that this device can move with video camera when video camera occurs extremely mobile.Be arranged on PCB that inside directly can be fixed on video camera or in the mode of module plug-in mounting and be fixed on camera body inside; Mounted externally can directly by screw fastening on camera housing, ensure to move with camera body consistance.
Technical scheme for a better understanding of the present invention, as shown in Figure 3, now introduce a kind of workflow adopting the video camera monitoring alarm of concrete hardware device work:
S201, CPU(comparison module) timing reads acceleration transducer, gyroscope (acquisition module) from the parameters value of Real-time Collection monitored video camera, comprise accekeration and the magnitude of angular velocity of each dimension current, in order to ensure precision and real-time, the every 50ms in interval can be set and read;
S202, CPU compare respectively to the accekeration collected and magnitude of angular velocity and the angular velocity threshold value preset and acceleration higher limit and lower limit, judge whether current alerts device reaches the boundary of warning.Comprise:
1), when the accekeration a collecting a certain dimension exceedes default acceleration higher limit, namely | a|>A, then judge video camera generation abnormal displacements.The a obtained as continuous several times all exceedes default acceleration higher limit, be then judged to violent abnormal displacements occurs.
2), for fixing video camera, when the accekeration a collecting a certain dimension exceedes default acceleration lower limit (setting of this value environmentally can need setting), or cumulative displacement exceedes default displacement (can be 2cm), all can judge that video camera occurs abnormal mobile.
3), for the video camera of rotation of lens, when the magnitude of angular velocity of a certain dimension exceedes preset angle threshold speed, or when accumulated value exceedes default maximum rotation range value, video camera generation anomalous rotation can all be judged.
S203, CPU process after having judged current attitude situation, according to abnormal conditions, notify that relevant device carries out alert process in time by communication interface (output module) output alarm information, comprise current type of alarm (knock, violent displacement, abnormal mobile anomalous rotation, etc.), alert data (the concrete data statistics value of record).And when trigger alarm state, this warning device can send look-at-me, monitored video camera is stopped to quit work fast.
In sum, embodiment of the present invention video camera alarming method by monitoring and device, by every motion index of real-time acquisition camera, the current intelligence of real-time grasp video camera, when arbitrary motion index exceedes default threshold value, judge to occur extremely, thus timely output alarm information, make managerial personnel can grasp the duty of video camera timely and accurately.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disk memory and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the process flow diagram of the method for the embodiment of the present invention, equipment (system) and computer program and/or block scheme.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block scheme and/or square frame and process flow diagram and/or block scheme and/or square frame.These computer program instructions can being provided to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computing machine or other programmable data processing device produce device for realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make on computing machine or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computing machine or other programmable devices is provided for the step realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (16)
1. a video camera alarming method by monitoring, is characterized in that, the method comprises:
Real-time Collection is for characterizing the motion index of monitored picture pick-up device motion change;
Described motion index is compared with the corresponding alarm threshold value preset;
To the comparative result exceeding described alarm threshold value, export corresponding warning message.
2. the method for claim 1, is characterized in that, described motion index comprises the parameter value of the motion change of monitored picture pick-up device in multiple dimension, and each class parameter value corresponding is provided with different alarming threshold values.
3. method as claimed in claim 2, it is characterized in that, alarm threshold value described in each is Multi-stage alarming threshold value, enables the corresponding grade of described alarm threshold value according to the applied environment of monitored picture pick-up device.
4. the method as described in claim 1,2 or 3, is characterized in that, the kind of described parameter value is following one or more:
The accekeration of monitored picture pick-up device in multiple dimension;
The velocity amplitude of monitored picture pick-up device in multiple dimension;
The magnitude of angular velocity of monitored picture pick-up device in multiple dimension.
5. method as claimed in claim 4, is characterized in that, the described comparative result to exceeding described alarm threshold value, exports corresponding warning message, specifically comprises:
When parameter value single in individual single dimension one by one in office exceeds the current alarm threshold value enabled, export corresponding inferior grade warning message;
When parameter value continuous several times in individual single dimension one by one in office exceeds the current alarm threshold value enabled, export corresponding high-grade warning message.
6. method as claimed in claim 4, is characterized in that, described warning message comprises according to the type of alarm of the correspondence of different parameters value setting with for adding up the alert data that this exceeds the parameter value of alarm threshold value.
7. method as claimed in claim 5, it is characterized in that, the method also comprises, and while the described warning message of output, also sends for controlling the out-of-work look-at-me of described monitored picture pick-up device to monitored picture pick-up device.
8. method as claimed in claim 5, it is characterized in that, described Real-time Collection, for characterizing the motion index of monitored picture pick-up device motion change, specifically comprises:
Periodic Real-time Collection is for characterizing the motion index of monitored picture pick-up device motion change;
When each cycle starts, delete the motion index of upper cycle collection.
9. a video camera monitoring alarm, is characterized in that, this device comprises:
Acquisition module, for Real-time Collection for characterizing the motion index of monitored picture pick-up device motion change;
Comparison module, for comparing described motion index with the corresponding alarm threshold value preset;
Output module, for the comparative result exceeding described alarm threshold value, exports corresponding warning message.
10. device as claimed in claim 9, it is characterized in that, described motion index comprises the parameter value of the motion change of monitored picture pick-up device in multiple dimension, and each class parameter value corresponding is provided with different alarming threshold values.
11. devices as claimed in claim 10, it is characterized in that, this device also comprises induction and arranges module, when being Multi-stage alarming threshold value for alarm threshold value described in each, enables the corresponding grade of described alarm threshold value according to the applied environment of monitored picture pick-up device.
12. devices as described in claim 9,10 or 11, is characterized in that, the kind of described parameter value is following one or more:
The accekeration of monitored picture pick-up device in multiple dimension;
The velocity amplitude of monitored picture pick-up device in multiple dimension;
The magnitude of angular velocity of monitored picture pick-up device in multiple dimension.
13. devices as claimed in claim 12, is characterized in that, described output module, specifically for:
When parameter value single in individual single dimension one by one in office exceeds the current alarm threshold value enabled, export corresponding inferior grade warning message;
When parameter value continuous several times in individual single dimension one by one in office exceeds the current alarm threshold value enabled, export corresponding high-grade warning message.
14. devices as claimed in claim 13, is characterized in that, described warning message comprises according to the type of alarm of the correspondence of different parameters value setting with for adding up the alert data that this exceeds the parameter value of alarm threshold value.
15. devices as claimed in claim 14, is characterized in that, described output module while the described warning message of output also for, send for for controlling the out-of-work look-at-me of described monitored picture pick-up device to monitored picture pick-up device.
16. devices as claimed in claim 15, is characterized in that, described acquisition module specifically for:
The motion index for characterizing monitored picture pick-up device motion change is gathered time periodic;
When each cycle starts, delete the motion index of upper cycle collection.
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| CN201310230608.9A CN104240433A (en) | 2013-06-08 | 2013-06-08 | Camera monitoring alarm method and device |
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| CN201310230608.9A CN104240433A (en) | 2013-06-08 | 2013-06-08 | Camera monitoring alarm method and device |
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| CN106331619A (en) * | 2016-08-23 | 2017-01-11 | 北京小米移动软件有限公司 | Information sending method and device |
| CN112919050A (en) * | 2021-02-04 | 2021-06-08 | 华润电力技术研究院有限公司 | Conveyor belt monitoring method, device, equipment and computer readable storage medium |
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