CN209545759U - A kind of monitoring management system based on CVBS video camera - Google Patents
A kind of monitoring management system based on CVBS video camera Download PDFInfo
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- CN209545759U CN209545759U CN201920503732.0U CN201920503732U CN209545759U CN 209545759 U CN209545759 U CN 209545759U CN 201920503732 U CN201920503732 U CN 201920503732U CN 209545759 U CN209545759 U CN 209545759U
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Abstract
The utility model discloses a kind of monitoring management system based on CVBS video camera, including at least one video frequency switching module, video frequency switching module includes at least two camera signals input terminals；Video synchronization signal separation module, the signal output terminal of the signal input terminal electrical connection video frequency switching module of video synchronization signal separation module, a video synchronization signal separation module one video frequency switching module of each correspondence；Control module, control module are electrically connected video switch circuit and video synchronization signal split circuit；Monitoring management module, monitoring management module are electrically connected control module.Reduce the cost of labor of burn-in test camera, square-wave signal is separated into using synchronization signal of the video synchronization signal split circuit to the vision signal of camera, it is then output to control module, control module carries out the detection of square-wave signal to judge whether camera exception occurs in ageing process, reduces the investment of manpower.
Description
Technical field
The utility model relates to camera aging monitoring technology fields, are mainly concerned with a kind of based on CVBS video camera
Monitoring management system.
Background technique
Camera burn-in test is the important ring in camera quality test, is all handle now with camera burn-in test
The camera of output CVBS vision signal connects the content of display screen real-time display camera in ageing process, then by being responsible for
By eye-observation, whether the image that camera captures goes wrong the staff of burn-in test, to judge camera
Whether break down.Existing camera burn-in test very relies on burn-in test personnel, a large amount of cost of labor is needed, when one
The probability of the artificial property error occurred in test when the camera quantity that a burn-in test staff tests simultaneously is bigger
It is bigger, and easily occur in camera in ageing process and then restore automatically without output vision signal for some time,
And during this period of time without display image, and without record and auditory tone cues, if aging personnel have left post or do not have
Have and concentrate in display screen, it will problem can not be perceived, the precision of burn-in test is lower, the detection quality mark of camera
Standard reduces.
Utility model content
The purpose of the utility model is to overcome shortcoming and deficiency in the prior art, provide one kind and are taken the photograph based on CVBS video
As the monitoring management system of head, reduces the cost of labor of camera burn-in test and improve the quality of camera detection.
The utility model is realized through the following technical scheme: a kind of monitoring management based on CVBS video camera
System, including
At least one video frequency switching module, video frequency switching module include at least two camera signals input terminals；
Video synchronization signal separation module, the signal input terminal electrical connection video switching of video synchronization signal separation module
The signal output terminal of module, video synchronization signal separation module quantity is consistent with video frequency switching module, an audio video synchronization letter
Number separation module one video frequency switching module of each correspondence；
Control module, control module are electrically connected video switch circuit and video synchronization signal split circuit；
Monitoring management module, monitoring management module are electrically connected control module.
Further, the signal input terminal of the connection video frequency switching module is 3.
Further, the period of the video frequency switching module switching camera is 1/3 second.
Further, the video frequency switching module and video synchronization signal separation module are two.
It further, further include buzzer, the buzzer is electrically connected control module.
It further, further include LED light, the LED is electrically connected control module.
A kind of monitoring management system based on CVBS video camera of the utility model has following beneficial compared with prior art
Effect:
One, the cost of labor for reducing burn-in test camera inputs camera using video synchronization signal split circuit
The synchronization signal of the vision signal of video frequency switching module is separated into square-wave signal, is then output to control module, control module into
The detection of row square-wave signal is to judge whether camera exception occurs in ageing process, instead of people in camera burn-in test
During effect, reduce the investment of manpower.
It two, being capable of multiple cameras of burn-in test and will not be because of people caused by the tired or other factors for people simultaneously
For error, the quality in camera shooting ageing management is improved.
Three, the precision for improving camera burn-in test, the output signal for setting camera can detect within each second,
So that camera aging surveys the precision set and reaches second grade.
Detailed description of the invention
Fig. 1 is the embodiment one of the monitoring management system based on CVBS video camera of the utility model；
Fig. 2 is the embodiment two of the monitoring management system based on CVBS video camera of the utility model；
Fig. 3 is the control flow chart of the monitoring management system based on CVBS video camera of the utility model.
Specific embodiment
It is practical new to this with reference to the accompanying drawing in order to keep the purpose of this utility model, technical solution and advantage clearer
Type specific embodiment is described in further detail.It is understood that specific embodiment described herein is used only for solving
Release the utility model, rather than the restriction to the utility model.
As shown in Fig. 1, a kind of embodiment one of the monitoring management system based on CVBS video camera, including
Two cameras, the camera are the camera for needing burn-in test；One video frequency switching module, video switching
Module includes two camera signals input terminals, and (providing one kind here can be real by the model NJM2244 of video frequency switching module
The model of the video frequency switching module of existing the utility model function, is not to be defined to the model of video frequency switching module, other
This may be implemented and illustrates that the video frequency switching module of other models of the video frequency switching module function of recording can be used as implementation this case
Video frequency switching module), camera 1 and camera 2 are electrically connected the camera signals input terminal of video frequency switching module,
Vision signal is input in video switch circuit, can carry out burn-in test to two cameras simultaneously；One audio video synchronization letter
Number separation module, (provide one kind here may be implemented the utility model to the model LM1881 of video synchronization signal separation module
The model of the video synchronization signal separation module of function is not to be defined to the model of video synchronization signal separation module,
The video synchronization signal separation of other models of the video synchronization signal separation module function that this illustrates to record may be implemented in other
Module can be used as the video synchronization signal separation module for implementing this case), the signal input part of video synchronization signal separation module
The signal output terminal of son electrical connection video frequency switching module, video synchronization signal split circuit handle are transmitted across by video switch circuit
The synchronization signal for the vision signal come, which is separated, becomes square-wave signal；Control module, control module are model STM32F103
Single-chip microcontroller (a kind of model of control module that the utility model function may be implemented is provided here, is not to control module
Model be defined, other may be implemented this and illustrate that the control modules of other models for the control module function of recording can be made
For the control module for implementing this case), control module is electrically connected video switch circuit and video synchronization signal split circuit；Monitoring pipe
Module is managed, monitoring management module is the monitoring and control management software based on the end PC, and monitoring management module is electrically connected to control by serial ports
Module establishes serial communication with control module.
The burn-in test principle of the embodiment one of monitoring management system based on CVBS video camera are as follows: 1 He of camera
Camera 2, which continues working, to be input to vision signal in video frequency switching module, and video frequency switching module is by camera 1 and camera 2
Vision signal according to set in advance video switching time interval switch over so that being connected to video frequency switching module
Camera same time only one of which vision signal can by video frequency switching module after transfer out video
In synchronization signal separation module, and by the signal transmission between video frequency switching module and control module, so that in conveying
Vision signal is transmitted to control module, video synchronization signal separation to the camera information of video synchronization signal separation module simultaneously
Module, which separates the synchronization signal of the vision signal power transmitted by video frequency switching module, becomes square-wave signal, then
Square-wave signal is transferred to control module, and control module is by judging whether there is square-wave signal input to the current output video of judgement
Whether the camera of signal breaks down, if control module detects no square-wave signal output, will work as the letter of preceding camera
Breath and current time are transferred in monitoring management module by serial ports and are existed in monitoring management module, so that camera
Number and the information of failure time of occurrence are recorded.Above-mentioned principle is a kind of principle of the hardware based on the utility model
Other principle embodiments of embodiment, other same hardware based on the utility model realize same effect
Suitable for this case.
In conjunction with shown in attached drawing 2 and attached drawing 3, the embodiment two of the monitoring management system based on CVBS video camera is described
Embodiment two includes three camera signals input terminals the difference from embodiment 1 is that, each video frequency switching module,
The camera quantity of video frequency switching module input terminal electrical connection is 3, can carry out burn-in test, institute to 3 cameras simultaneously
The period for stating video frequency switching module switching camera is 1/3 second, that is, is that each camera persistently exports vision signal 1/3rd seconds
Next camera is switched to, 3 cameras are one group, and each camera exports to be added up to 1 second as one for 1/3rd seconds
A circulation can detect whether each camera has vision signal output in one second in this way, it is ensured that camera is not in super
1 second failure is crossed, such camera quality makes the weathering criteria of camera reach second grade, improves the aging of camera
Measuring accuracy is arranged each camera a cycle detection and is also avoided that within 1/3rd seconds because of camera signal period detection time
Being easily lost for the too short square-wave signal for leading to vision signal conversion synchronization signal leads to be mistaken for camera event by control module
Barrier；The video frequency switching module and video synchronization signal separation module are two, when the camera shooting of one group of video frequency switching module connection
After head detection is completed, the camera that control module control is switched to next group of video frequency switching module carries out burn-in test, can
Guarantee to carry out burn-in test to 3 cameras while aging monitoring accuracy, and completes it in one group of camera burn-in test
After automatically switch to next group of camera and carry out burn-in test, realize the synchronous burn-in tests of multiple cameras and multiple groups camera
Continuous ageing test improves the efficiency of burn-in test and reduces cost of labor；It further include buzzer and LED light, buzzer
It is connected to control module with LED light, when the square-wave signal that control module can't detect the output of video synchronization signal module then drives
Buzzer call and LED light flashing, can remind ageing management staff currently to test camera shooting in the case where someone is on duty
Head breaks down.
The burn-in test principle of the embodiment two of monitoring management system based on CVBS video camera are as follows: video switches mould
Block 1 works, and camera 1, camera 2 and camera 3, which continue working, to be input to vision signal in video frequency switching module 1, video
Switching module by the vision signal of camera 1, camera 2 and camera 3 according to set in advance video switching time between
Switched over every 1/3rds seconds so that be connected to the camera of video frequency switching module in 1 second when having 1/3rd seconds respectively
Between by its vision signal can by transfer out in video synchronization signal separation module 1 after video frequency switching module 1, and
By the signal transmission between video frequency switching module 1 and control module, so that in conveying vision signal to video synchronization signal
The camera information of separation module 1 is transmitted to control module simultaneously, and video synchronization signal separation module 1 will be by video frequency switching module
The synchronization signal of the 1 vision signal power transmitted, which is separated, becomes square-wave signal, and square-wave signal is then transferred to control
Module, control module is by judging whether there is square-wave signal input to which whether the camera of the current output vision signal of judgement goes out
Existing failure will pass through if control module detects no square-wave signal output when the information of preceding camera and current time
Serial ports is transferred in monitoring management module and exists in monitoring management module, so that the number of camera and failure time of occurrence
Information recorded, when the camera of this group have passed through need burn-in test time (this burn-in test time according to
The design parameter of different cameras is formulated according to industry internal standard), then control module control control video frequency switching module 1 stops work
Make, video frequency switching module 2 start to work, rear camera 4, the aging monitoring principle of camera 5 and camera 6 and camera 1,
Camera 2 is consistent with camera 3.Above-mentioned principle is a kind of principle embodiment of the hardware based on the utility model,
Other principle embodiments of other same hardware based on the utility model realize being also applied for originally for same effect
Case.
It is worth noting that, the corresponding camera number of each video frequency switching module is not limited to 2 or 3, Ke Yiwei
More cameras correspond to a video frequency switching module, and video frequency switching module is also not necessarily limited to 1 or 2, it is above-mentioned can root
Change according to the change of actual needs and weathering criteria.
The utility model is not limited to above-mentioned implementation method, if the various changes or deformation to the utility model are not
The spirit and scope of the utility model are detached from, if these changes and deformation belong to the claim and equivalent skill of the utility model
Within the scope of art, then the utility model is also intended to encompass these changes and deformation.
Claims (6)
1. a kind of monitoring management system based on CVBS video camera, it is characterised in that: including
At least one video frequency switching module, video frequency switching module include at least two camera signals input terminals；
The signal input terminal of video synchronization signal separation module, video synchronization signal separation module is electrically connected video frequency switching module
Signal output terminal, video synchronization signal separation module quantity is consistent with video frequency switching module, video synchronization signal point
From module one video frequency switching module of each correspondence；
Control module, control module are electrically connected video switch circuit and video synchronization signal split circuit；
Monitoring management module, monitoring management module are electrically connected control module.
2. the monitoring management system according to claim 1 based on CVBS video camera, it is characterised in that: the connection
The camera signals input terminal of video frequency switching module is 3.
3. the monitoring management system according to claim 2 based on CVBS video camera, it is characterised in that: the video
The period that switching module switches camera is 1/3 second.
4. the monitoring management system according to claim 2 based on CVBS video camera, it is characterised in that: the video
Switching module and video synchronization signal separation module are two.
5. the monitoring management system according to claim 1 based on CVBS video camera, it is characterised in that: further include bee
Ring device, and the buzzer is electrically connected control module.
6. the monitoring management system according to claim 1 based on CVBS video camera, it is characterised in that: further include
LED light, the LED are electrically connected control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920503732.0U CN209545759U (en) | 2019-04-12 | 2019-04-12 | A kind of monitoring management system based on CVBS video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920503732.0U CN209545759U (en) | 2019-04-12 | 2019-04-12 | A kind of monitoring management system based on CVBS video camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209545759U true CN209545759U (en) | 2019-10-25 |
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|---|---|---|---|
| CN201920503732.0U Active CN209545759U (en) | 2019-04-12 | 2019-04-12 | A kind of monitoring management system based on CVBS video camera |
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2019
- 2019-04-12 CN CN201920503732.0U patent/CN209545759U/en active Active
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