CN205847441U - The video of video camera accesses circuit and video monitoring tester - Google Patents
The video of video camera accesses circuit and video monitoring tester Download PDFInfo
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- CN205847441U CN205847441U CN201620739400.9U CN201620739400U CN205847441U CN 205847441 U CN205847441 U CN 205847441U CN 201620739400 U CN201620739400 U CN 201620739400U CN 205847441 U CN205847441 U CN 205847441U
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- video
- video camera
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- digital conversion
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Abstract
The video that the utility model discloses a kind of video camera accesses circuit, is applied to video monitoring tester, including analog-to-digital conversion module, control module and display module；The input of described analog-to-digital conversion module is connected with video camera, and outfan is connected with the input of described control module, and the outfan of described control module is connected with described display module；Described analog-to-digital conversion module receives the analogue signal that the environment picture of described video camera current shooting is generated, and the analogue signal received is converted into digital signal output to described control module；The digital signal output extremely described display module that described control module will be currently received, shows the environment picture of described video camera current shooting for described display module.The invention also discloses a kind of video monitoring tester.This utility model reduces analog digital conversion number of times by arranging analog-to-digital conversion module, reduces the loss of signal, improves the image sharpness after video camera accesses.
Description
Technical field
This utility model relates to protection and monitor field, and the video particularly relating to a kind of video camera accesses circuit and video monitoring
Tester.
Background technology
It is known that along with people's attention to the security of the lives and property, various safety monitoring products progress into
The life range of people.Video monitoring tester in the market typically requires by repeatedly when accessing simulation high-definition camera
Analog to digital-digital to analog converter, to ensure to be shown on video monitoring tester the environment picture of video camera current shooting, but repeatedly
Analog to digital-digital to analog converter process causes multiple signal loss, accesses rear video image definition low.
Utility model content
Main purpose of the present utility model is that the video providing a kind of video camera accesses circuit and video monitoring tester,
It is intended to, by arranging analog-to-digital conversion module minimizing analog digital conversion number of times, reduce the loss of signal, therefore improve video image and access
Definition.
To achieve these goals, this utility model provides the video of a kind of video camera to access circuit, is applied to video prison
Control tester, including analog-to-digital conversion module, control module and display module；The input of described analog-to-digital conversion module and video camera
Connecting, outfan is connected with the input of described control module, and the outfan of described control module is connected with described display module；
Described analog-to-digital conversion module receives the analogue signal that generated of environment picture of described video camera current shooting, and will receive
Analogue signal is converted into digital signal output to described control module；Described control module is by defeated for the digital signal being currently received
Go out to described display module, show the environment picture of described video camera current shooting for described display module.
Preferably, described display module includes showing subelement；Regarding of described analog-to-digital conversion module identification current camera
Frequently parameter type, and by described video parameter type output to described display subelement, show institute for described display subelement
State the video parameter type of video camera.
Preferably, described control module includes adjusting module；The number that described control module is received by described adjusting module
The resolution adjustment of word signal is the resolution adapting to described display module, and the digital signal after adjusting feeds back to described
Control module.
Preferably, described analog-to-digital conversion module includes NVP6114A chip.
Preferably, described video camera is that AHD simulates high-definition camera.
Preferably, described analog-to-digital conversion module includes TP2833 chip.
Preferably, described video camera is that TVI simulates high-definition camera.
Preferably, it is connected by coaxial cable between described video camera and the input of described analog-to-digital conversion module.
Additionally, for achieving the above object, this utility model also provides for a kind of video monitoring tester, and described video monitoring is surveyed
Examination instrument includes that the video of video camera accesses circuit, and the video of this video camera accesses circuit and includes analog-to-digital conversion module, control module
And display module；The input of described analog-to-digital conversion module is connected with video camera, outfan and the input of described control module
Connecting, the outfan of described control module is connected with described display module；Described analog-to-digital conversion module receives described video camera and works as
The analogue signal that the environment picture of front shooting is generated, and the analogue signal received is converted into digital signal output to described
Control module；The digital signal output extremely described display module that described control module will be currently received, for described display mould
Block shows the environment picture of described video camera current shooting.
This utility model embodiment is by arranging analog-to-digital conversion module, control module and display module；Described analog digital conversion
The input of module is connected with video camera, and outfan is connected with the input of described control module, the output of described control module
End is connected with described display module；The environment picture of the described analog-to-digital conversion module described video camera current shooting of reception is generated
Analogue signal, and the analogue signal received is converted into digital signal output to described control module；Described control module will
The digital signal output being currently received, to described display module, shows described video camera current shooting for described display module
Environment picture.Thus decrease analog digital conversion number of times, the loss of signal can be reduced, therefore improve video image and access clearly
Degree.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the structural representation of video access circuit one embodiment of this utility model video camera.
The realization of this utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Drawing reference numeral illustrates:
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this
Utility model.
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model rather than all
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, broadly falls into the scope of this utility model protection.
It is to be appreciated that directional instruction (such as up, down, left, right, before and after ...) in this utility model embodiment
It is only used for explanation relative position relation under a certain particular pose (as shown in drawings) between each parts, motion conditions etc., as
When really this particular pose changes, then directionality instruction changes the most therewith.
It addition, the description relating to " first ", " second " etc. in this utility model is only used for describing purpose, and it is not understood that
For indicating or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ",
The feature of " second " can express or implicitly include at least one this feature.It addition, the technical side between each embodiment
Case can be combined with each other, but must be based on those of ordinary skill in the art are capable of, when the combination of technical scheme
Occur conflicting will be understood that the combination of this technical scheme does not exists, the most not in this utility model requirement when maybe cannot realize
Protection domain within.
This utility model provides the video of a kind of video camera to access circuit 20, is applied to video monitoring tester, with reference to figure
1, in one embodiment, the video of this video camera accesses circuit 20, including analog-to-digital conversion module 21, control module 22 and display mould
Block 23；The input of described analog-to-digital conversion module 21 is connected with video camera 10, outfan and the input of described control module 22
Connecting, the outfan of described control module 22 is connected with described display module 23；Described analog-to-digital conversion module 21 is taken the photograph described in receiving
The analogue signal that the environment picture of camera 10 current shooting is generated, and it is defeated that the analogue signal received is converted into digital signal
Go out to described control module 22；The digital signal output extremely described display module 23 that described control module 22 will be currently received,
The environment picture of described video camera 10 current shooting is shown for described display module 23.
In the present embodiment, the video of above-mentioned video camera accesses circuit 20 and is applied to video monitoring tester, and this video is supervised
Control tester can be that engineering is precious, the mould generated by the environment picture of video camera 10 current shooting by analog-to-digital conversion module 21
Intend signal and be converted into digital signal, compare at present by using repeatedly analog to digital-digital to analog converter technology by the simulation in video camera 10
Signal accesses video monitoring tester, and the present embodiment utilizes an analog digital conversion can complete data transmission, subtracts to greatest extent
Lack signal conversion loss, it is ensured that the definition that video camera 10 accesses.
It should be noted that, the resolution that above-mentioned video camera 10 is supported can be configured, according to actual needs in this reality
Execute in example, it is preferable that described video camera 10 resolution is 1280*720 or 1920*1080.
In the present embodiment, above-mentioned digital signals format can be configured according to actual needs, it is preferable that described numeral
Signal format is BT.656.BT.656 form, without synchronizing signal, supports serial video transmission, and transfer rate is high, receives with height
Frequency main control module matches, and digital signal can be rapidly input main control chip.
Further, coaxial cable is passed through between video camera 10 described above and the input of described analog-to-digital conversion module 21
(unmarked) connects.Coaxial cable can realize high-bandwidth communication on the circuit of relatively long non-relay device, it is ensured that shooting
The signal transmission of machine 10.
It should be noted that the connecting line that the video of above-mentioned video camera accesses within circuit 20 can enter according to actual needs
Row is arranged.In the present embodiment, it is connected by bus (unmarked) between described analog-to-digital conversion module 21 with described control module 22；
It is connected by bus between described control module 22 with described display module 23.
It should be noted that, the model of the chips of above-mentioned analog-to-digital conversion module 21 can set according to actual needs
Put, in particular it is required that and the standard of video camera match.
The most in one embodiment, above-mentioned analog-to-digital conversion module 21 includes NVP6114A chip, and above-mentioned video camera 10 is AHD
Simulation high-definition camera.Described NVP6114A chip can identify the resolution of AHD analogue signal, both with the use of, it is ensured that
The input of analogue signal is unimpeded.
In another embodiment, above-mentioned analog-to-digital conversion module 21 includes TP2833 chip, and above-mentioned video camera 10 is simulated for TVI
High-definition camera.Described TP2833 chip can identify the resolution of TVI analogue signal, both with the use of, it is ensured that simulation letter
Number input unimpeded.
Further, above-mentioned control module 22 includes adjusting module (not shown)；Described adjusting module is by described control mould
The resolution adjustment of the digital signal that block 22 receives is the resolution adapting to described display module 23, and will adjust after number
Word signal feeds back to described control module 22.By adjusting the resolution of digital signal, play the effect reducing image size, make
Described video camera 10 current shooting to environment picture be intactly shown in described display module 23.With described display module 23
Adaptive resolution can be arranged according to actual needs, it is preferable that in the present embodiment, with the resolution of described display module 23 adaptation
Rate is 800*480 or 480*272.
Further, above-mentioned display module 23 includes showing subelement (not shown)；Described analog-to-digital conversion module 21 identifies
The video parameter type of current camera 10, and by the output of described video parameter type to described display subelement, for described
The video parameter type of the video camera 10 of display subelement display current shooting.In the present embodiment, described signal parameter is permissible
It is configured according to actual needs, it is preferable that described signal parameter is resolution and signaling mode.By regarding of described video camera 10
Frequently parameter includes that resolution and signaling mode show on display module so that engineering staff can be visually seen video in use
Supplemental characteristic, serves reference role for engineering survey and monitoring.
This utility model also provides for a kind of video monitoring tester, and this video monitoring tester includes that the video of video camera connects
Entering circuit 20, the video of this video camera accesses the structure of circuit and can refer to above-described embodiment, does not repeats them here.Naturally
Ground, have employed the technical scheme of the video access circuit 20 of above-mentioned video camera due to the video monitoring tester of the present embodiment, because of
This this video monitoring tester has the video of above-mentioned video camera and accesses all of beneficial effect of circuit 20.
These are only preferred embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model, every
Utilize equivalent structure or equivalence flow process conversion that this utility model description and accompanying drawing content made, or be directly or indirectly used in
Other relevant technical fields, are the most in like manner included in scope of patent protection of the present utility model.
Claims (9)
1. the video of video camera accesses a circuit, is applied to video monitoring tester, it is characterised in that include analog digital conversion mould
Block, control module and display module；The input of described analog-to-digital conversion module is connected with video camera, outfan and described control mould
The input of block connects, and the outfan of described control module is connected with described display module；Described analog-to-digital conversion module receives institute
State the analogue signal that the environment picture of video camera current shooting is generated, and the analogue signal received is converted into digital signal
Output is to described control module；The digital signal output extremely described display module that described control module will be currently received, for
Described display module shows the environment picture of described video camera current shooting.
2. the video of video camera as claimed in claim 1 accesses circuit, it is characterised in that described display module includes display
Unit；The video parameter type of described analog-to-digital conversion module identification current camera, and described video parameter type is exported extremely
Described display subelement, for the video parameter type of the described video camera of described display subelement display current shooting.
3. the video of video camera as claimed in claim 1 accesses circuit, it is characterised in that described control module includes adjusting mould
Block；The resolution adjustment of the digital signal that described control module is received by described adjusting module is for adapting to described display module
Resolution, and will adjust after digital signal feed back to described control module.
4. the video of video camera as claimed in claim 3 accesses circuit, it is characterised in that described analog-to-digital conversion module includes
NVP6114A chip.
5. the video of video camera as claimed in claim 4 accesses circuit, it is characterised in that described video camera is AHD simulation height
Clear video camera.
6. the video of video camera as claimed in claim 3 accesses circuit, it is characterised in that described analog-to-digital conversion module includes
TP2833 chip.
7. the video of video camera as claimed in claim 6 accesses circuit, it is characterised in that described video camera is TVI simulation height
Clear video camera.
8. the video camera as described in any one of claim 1 to 7 video access circuit, it is characterised in that described video camera with
Connected by coaxial cable between the input of described analog-to-digital conversion module.
9. a video monitoring tester, it is characterised in that described video monitoring tester includes as claim 1 to 8 is arbitrary
The video of the video camera described in Xiang accesses circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620739400.9U CN205847441U (en) | 2016-07-13 | 2016-07-13 | The video of video camera accesses circuit and video monitoring tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620739400.9U CN205847441U (en) | 2016-07-13 | 2016-07-13 | The video of video camera accesses circuit and video monitoring tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205847441U true CN205847441U (en) | 2016-12-28 |
Family
ID=57618313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620739400.9U Expired - Fee Related CN205847441U (en) | 2016-07-13 | 2016-07-13 | The video of video camera accesses circuit and video monitoring tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205847441U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111083416A (en) * | 2018-10-19 | 2020-04-28 | 杭州海康威视数字技术股份有限公司 | Data processing method and device, electronic equipment and readable storage medium |
-
2016
- 2016-07-13 CN CN201620739400.9U patent/CN205847441U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111083416A (en) * | 2018-10-19 | 2020-04-28 | 杭州海康威视数字技术股份有限公司 | Data processing method and device, electronic equipment and readable storage medium |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20190713 |