CN201499213U - Camera switching module - Google Patents
Camera switching module Download PDFInfo
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- CN201499213U CN201499213U CN2009200760536U CN200920076053U CN201499213U CN 201499213 U CN201499213 U CN 201499213U CN 2009200760536 U CN2009200760536 U CN 2009200760536U CN 200920076053 U CN200920076053 U CN 200920076053U CN 201499213 U CN201499213 U CN 201499213U
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Abstract
The utility model relates to a camera switching module, which is provided with a video input interface for receiving a camera video signal, a power interface for providing a power supply for a camera, a control signal interface for outputting a control signal to the camera and receiving a camera output signal, and a RJ45 interface coupled with the video input interface, the power interface and the control signal interface. Therefore, the switching module realizes the transmission of the camera video signal, the control signal and the power supply by being connected with a signal cable so as to overcome the defect that in the prior art, the cables are excessive because the camera needs to separately allocate the video signal transmission line, the power transmission line and the control signal transmission line.
Description
[technical field]
The utility model relates to a kind of signal and power supply transfer module, is meant especially with video camera to be used, the interconnecting module of be used to transfer camera video signal, control signal and power supply.
[background technology]
In security protection, all need to install video camera in monitoring and the video teaching system, and need to install a plurality of video cameras to realize omnibearing shooting, in the prior art, each video camera all will dispose video signal transmission wire separately, power transmission line and control signal transmission line, be that each video camera all needs three cables could realize the transmission of signal and the supply of electric power, so need to consume coaxial cable and the power delivery cable and the control line of a large amount of video transmission special uses, therefore cause cost too high, too much owing to cable simultaneously, thus it is comparatively complicated to cause the installing engineering amount to reach follow-up maintenance more greatly.
[utility model content]
The purpose of this utility model is to provide a kind of and is used with video camera, the interconnecting module of camera video signal, control signal and power supply is used to transfer, this interconnecting module causes cable too much defective thereby overcome in the prior art because of video camera all will dispose video signal transmission wire, power transmission line and control signal transmission line separately by be connected the transmission that realizes camera video signal, control signal and power supply with single cable.
For achieving the above object, implement video camera interconnecting module of the present utility model and be provided with the video input interface that is used to receive camera video signal, be used for the power interface of power supply is provided and is used for to video camera output control signal and receives the control signal interface of camera signal to video camera, and the RJ45 interface that couples with above-mentioned video input interface, power interface and control signal interface.
According to above-mentioned principal character, first and second lead of this video input interface and this RJ45 interface couples.
According to above-mentioned principal character, be serially connected with video differential transmitter, impedance matching network and lightning protection electrostatic discharge protective circuit between first and second lead of this video input interface and this RJ45 interface successively.
According to above-mentioned principal character, the 4th and the 5th lead of the positive voltage of this power interface and this RJ45 interface couples, and the 7th and the 8th lead of ground wire and this RJ45 interface couples.
According to above-mentioned principal character, be serially connected with voltage stabilizing circuit and rectification circuit between this power interface and this RJ45 interface.
According to above-mentioned principal character, this voltage stabilizing circuit also is in parallel with a shunt resistance.
According to above-mentioned principal character, the 3rd and the 6th lead of this control signal interface and this RJ45 interface couples.
According to above-mentioned principal character, be serially connected with the lightning protection electrostatic discharge protective circuit between this control signal interface and this RJ45 interface.
Another purpose of the utility model is to provide the combination of a kind of video camera and interconnecting module.
For achieving the above object, the combination of implementing video camera of the present utility model and interconnecting module comprises a video camera and an interconnecting module, wherein this interconnecting module is provided with the video input interface that is used to receive camera video signal, be used for the power interface of power supply is provided and is used for to video camera output control signal and receives the control signal interface of camera signal to video camera, and the RJ45 interface that couples with above-mentioned video input interface, power interface and control signal interface.
According to above-mentioned principal character, first and second lead of this video input interface and this RJ45 interface couples.
According to above-mentioned principal character, be serially connected with video differential transmitter, impedance matching network and lightning protection electrostatic discharge protective circuit between first and second lead of this video input interface and this RJ45 interface successively.
According to above-mentioned principal character, the 4th and the 5th lead of the positive voltage of this power interface and this RJ45 interface couples, and the 7th and the 8th lead of ground wire and this RJ45 interface couples.
According to above-mentioned principal character, be serially connected with voltage stabilizing circuit and rectification circuit between this power interface and this RJ45 interface.
According to above-mentioned principal character, this voltage stabilizing circuit also is in parallel with a shunt resistance.
According to above-mentioned principal character, the 3rd and the 6th lead of this control signal interface and this RJ45 interface couples.
According to above-mentioned principal character, be serially connected with the lightning protection electrostatic discharge protective circuit between this control signal interface and this RJ45 interface.
The utility model purpose again is to provide a kind of connected system of a plurality of video cameras, wherein this connected system comprises a plurality of camara modules and control module, wherein each camara module includes a transmission video signal, control signal and the RJ45 interface of camera power supply is provided, and control module is connected with this RJ45 interface, and this control module comprises power subsystem, control unit and video signal processing unit, wherein this power subsystem and control unit are connected with above-mentioned each camara module, and the video signal processing unit of control module is corresponding one by one with above-mentioned a plurality of camara modules.
According to above-mentioned principal character, the vision signal of this camara module is from first and second lead output of this RJ45 interface, and the vision signal of exporting from first and second lead of this RJ45 interface is a difference video signal.
According to above-mentioned principal character; the video signal processing unit of control module is provided with lightning protection electrostatic discharge protective circuit, impedance matching network and differential signal is reduced to the video signal receiver of analog video signal, inputs to video signal receiver from the difference video signal of first and second lead output of this RJ45 interface after by lightning protection electrostatic discharge protective circuit and impedance matching network.
According to above-mentioned principal character, the 4th and the 5th lead of the positive voltage of this camara module power supply and this RJ45 interface couples, and the 7th and the 8th lead of ground wire and this RJ45 interface couples.
According to above-mentioned principal character, the control signal of this camara module or feedback signal input or output by the 3rd and the 6th lead of this RJ45 interface.
Compared with prior art, the utility model is switchable camera video signal, control signal and power supply by a RJ45 interface, so this video camera just can be realized the transmission of camera video signal, control signal and power supply by single cable, independent coaxial cable, power delivery cable and control line need be set, thereby overcome the too much defective of prior art cable.
[description of drawings]
Fig. 1 is a connection diagram of implementing interconnecting module of the present utility model and video camera.
Fig. 2 is a connection diagram of implementing the connected system of a plurality of video cameras of the present utility model.
[execution mode]
See also shown in Figure 1, for implementing the connection diagram of interconnecting module of the present utility model and video camera.In the present embodiment, video camera is the video camera of standard in the market, and the structure that focuses on interconnecting module of the present utility model, and therefore structure and the operation principle to video camera repeats no more.
This video camera interconnecting module 1 is provided with the video input interface 10 that is used to receive video camera 2 vision signals, be used for the power interface 11 of power supply is provided and is used for to video camera 2 output control signals and receives the control signal interface 12 of camera signal to video camera 2, and the RJ45 interface 13 that couples with above-mentioned video input interface 10, power interface 11 and control signal interface 12.Because RJ45 interface 13 has eight leads; in the present embodiment; this video input interface 10 receives the vision signal of video camera 2 outputs; and transfer differential signal to through video differential transmitter 100, couple with first and second lead 131,132 of this RJ45 interface 13 with lightning protection electrostatic discharge protective circuit 102 through first impedance matching network 101 more afterwards.By such setting, after transferring differential signal to, the vision signal of video camera 2 outputs transmits again, and be twisted-pair feeder by RJ45 interface 13 to (being first and second lead 131,132) transmission, so can effectively avoid extraneous interference, thereby guarantee quality of signals.
And the 4th and the 5th lead 134,135 of the positive voltage of this power interface 11 and this RJ45 interface 13 couples, and the 7th and the 8th the leading 137,138 lines and couple of ground wire and this RJ45 interface 13, in the specific implementation, be serially connected with voltage stabilizing circuit 111 and rectification circuit 110 between this power interface 11 and this RJ4513 interface, promptly from the voltage of the 4th and the 5th lead 134,135 output of this RJ45 interface 13 through rectification circuit 110 rectifications after, and offer video camera 2 through voltage stabilizing circuit 111 (the LM317 chip of producing as Texas Instruments).Certainly when implementing, this voltage stabilizing circuit 111 also is in parallel with a shunt resistance 112, thereby makes the input voltage that obtains being scheduled to of this video camera 2.
And the 3rd and the 6th lead 133,136 of this control signal interface 12 and this RJ45 interface 13 couples, and is serially connected with the second lightning protection electrostatic discharge protective circuit 120 between this control signal interface 12 and this RJ45 interface 13.
In the specific implementation, this video camera interconnecting module 1 can be made as an independent device, directly be connected with the video camera 2 of existing standard, RJ45 interface 13 that so can be by this video camera interconnecting module 1 directly is connected with control end, power end and the video signal input terminal of the external control device (as computer or monitoring host computer) of this video camera 2 by an existing netting twine (as surpassing 5 class netting twines or 6 class netting twines).Certainly because the vision signal of exporting from the RJ45 interface 13 of this this video camera interconnecting module 1 is a differential signal, therefore also a video signal receiver need be set, import the externally video signal input terminal of control device again after this differential signal is reduced to analog video signal, thereby realize transmission of video signals.Certainly, this video camera interconnecting module 1 also can directly be integrated in the existing video camera, each electronic component that is about to this video camera interconnecting module 1 is set directly on the main circuit board (not shown) of video camera, promptly the video output interface of this video camera (not shown) couples with first and second lead of this RJ45 interface, the the 4th and the 5th lead of the positive voltage of the power interface of this video camera (not shown) and this RJ45 interface couples, and the 7th and the 8th lead of ground wire and this RJ45 interface couples, the control signal interface (not shown) of this video camera couples with the 3rd and the 6th lead of this RJ45 interface, and so this video camera just only needs to carry out signal and power delivery by a RJ45 interface 13 with the external world.
See also shown in Figure 2, it is the connection diagram of implementing the connected system of a plurality of video cameras of the present utility model, this connected system 3 comprises a plurality of camara modules 30 and control module 31, wherein each camara module 30 includes the video camera of an existing standard and above-mentioned video camera interconnecting module 1, certainly this video camera interconnecting module 1 can be an independent device or directly is integrated in the video camera and (promptly existing video camera reequiped), being convenient narration, below is to be that example describes with the video camera of existing standard and independent video camera interconnecting module 1.
Each above-mentioned camara module 30 includes a transmission video signal, control signal and the RJ45 interface 300 of camera power supply is provided, and control module 31 is connected with camara module 30 by this RJ45 interface 300, and this control module 31 comprises power subsystem 310, control unit 311 and video signal processing unit 312, wherein this power subsystem 310 and control unit 311 are connected with above-mentioned each camara module 30, and the video signal processing unit 312 of control module 31 is corresponding one by one with above-mentioned a plurality of camara modules 30, the differential signal of camara module 30 by RJ45 interface 300 transmission is converted to analog video signal and transfers to display unit such as display.
In the specific implementation, this control module 31 comprises that power subsystem 310 can be the DC power supply of a 24V, so offers the voltage of video camera 12V behind rectification circuit, voltage stabilizing circuit and the shunt resistance (as shown in Figure 1) by video camera interconnecting module 30.And control unit 311 can be a control chip in practice, and this control unit 311 couples with each video camera interconnecting module 30, and is provided with the 3rd lightning protection electrostatic discharge protective circuit 316 between the RJ45 interface 300 of this control unit 311 and each video camera interconnecting module 30.And the video signal processing unit 312 of control module 31 is corresponding one by one with above-mentioned a plurality of camara modules 30; the difference video signal of the RJ45 interface 300 by each video camera interconnecting module 30 inputs to video signal receiver 315 after through the 4th lightning protection electrostatic discharge protective circuit 313, second impedance matching network 314; this differential signal is reduced to behind the analog video signal the corresponding display unit (not graphic) of input again; thereby the realization transmission of video signals is so to realize control and the demonstration to a plurality of video cameras.
Compared with prior art, the utlity model has following advantage:
First, the utility model is switchable camera video signal, control signal and power supply by a RJ45 interface, so this video camera just can be realized by single cable the transmission of camera video signal, control signal and power supply, independent coaxial cable, power delivery cable and control line need be set, thereby overcome the defective that the prior art cable too much reaches the engineering complexity.
Second; the utility model all arranges the lightning protection electrostatic discharge protective circuit on the vision signal of the vision signal of camera switching module 1 and control signal transmission path and control module 31 and control signal transmission path, so can guarantee the work that whole system can be reliable and stable in the noisy environment of complexity.
The 3rd, because the twisted-pair feeder of the netting twine that the utility model adopts is to carrying out the transmission of vision signal, and adopt special-purpose video differential transmitter (such as the EL5171 chip of U.S. Ying Texier company (IntersilCorporation) production) and receiving chip (such as the EL5172 chip of U.S. Ying Texier company (Intersil Corporation) production), so can realize long-distance transmissions, and can guarantee that bandwidth, the distortion factor and the insertion gain of transmission of video meet industry standard fully.
Claims (21)
1. video camera interconnecting module, be provided with the video input interface that is used to receive camera video signal, be used for the power interface of power supply is provided and is used for to video camera output control signal and receives the control signal interface of camera signal to video camera, it is characterized in that: this video camera interconnecting module also is provided with the RJ45 interface that couples with above-mentioned video input interface, power interface and control signal interface.
2. video camera interconnecting module as claimed in claim 1 is characterized in that: first and second lead of this video input interface and this RJ45 interface couples.
3. video camera interconnecting module as claimed in claim 2 is characterized in that: be serially connected with video differential transmitter, impedance matching network and lightning protection electrostatic discharge protective circuit between first and second lead of this video input interface and this RJ45 interface successively.
4. video camera interconnecting module as claimed in claim 1 is characterized in that: the 4th and the 5th lead of the positive voltage of this power interface and this RJ45 interface couples, and the 7th and the 8th lead of ground wire and this RJ45 interface couples.
5. video camera interconnecting module as claimed in claim 4 is characterized in that: be serially connected with voltage stabilizing circuit and rectification circuit between this power interface and this RJ45 interface.
6. video camera interconnecting module as claimed in claim 5 is characterized in that: this voltage stabilizing circuit also is in parallel with a shunt resistance.
7. video camera interconnecting module as claimed in claim 1 is characterized in that: the 3rd and the 6th lead of this control signal interface and this RJ45 interface couples.
8. video camera interconnecting module as claimed in claim 7 is characterized in that: be serially connected with the lightning protection electrostatic discharge protective circuit between this control signal interface and this RJ45 interface.
9. the combination of video camera and interconnecting module, comprise a video camera and an interconnecting module, wherein this interconnecting module is provided with the video input interface that is used to receive camera video signal, be used for the power interface of power supply is provided and is used for to video camera output control signal and receives the control signal interface of camera signal to video camera, it is characterized in that: this video camera interconnecting module also is provided with the RJ45 interface that couples with above-mentioned video input interface, power interface and control signal interface.
10. the combination of video camera as claimed in claim 9 and interconnecting module is characterized in that: first and second lead of this video input interface and this RJ45 interface couples.
11. the combination of video camera as claimed in claim 10 and interconnecting module is characterized in that: be serially connected with video differential transmitter, impedance matching network and lightning protection electrostatic discharge protective circuit between first and second lead of this video input interface and this RJ45 interface successively.
12. the combination of video camera as claimed in claim 9 and interconnecting module is characterized in that: the 4th and the 5th lead of the positive voltage of this power interface and this RJ45 interface couples, and the 7th and the 8th lead of ground wire and this RJ45 interface couples.
13. the combination of video camera as claimed in claim 12 and interconnecting module is characterized in that: be serially connected with voltage stabilizing circuit and rectification circuit between this power interface and this RJ45 interface.
14. the combination of video camera as claimed in claim 13 and interconnecting module is characterized in that: this voltage stabilizing circuit also is in parallel with a shunt resistance.
15. the combination of video camera as claimed in claim 9 and interconnecting module is characterized in that: the 3rd and the 6th lead of this control signal interface and this RJ45 interface couples.
16. the combination of video camera as claimed in claim 15 and interconnecting module is characterized in that: be serially connected with the lightning protection electrostatic discharge protective circuit between this control signal interface and this RJ45 interface.
17. the connected system of a plurality of video cameras, it is characterized in that: this connected system comprises a plurality of camara modules and control module, wherein each camara module includes a transmission video signal, control signal and the RJ45 interface of camera power supply is provided, and control module is connected with this RJ45 interface, and this control module comprises power subsystem, control unit and video signal processing unit, wherein this power subsystem and control unit are connected with above-mentioned each camara module, and the video signal processing unit of control module is corresponding one by one with above-mentioned a plurality of camara modules.
18. the connected system of a plurality of video cameras as claimed in claim 17, it is characterized in that: the vision signal of this camara module is from first and second lead output of this RJ45 interface, and the vision signal of exporting from first and second lead of this RJ45 interface is a difference video signal.
19. the connected system of a plurality of video cameras as claimed in claim 18; it is characterized in that: the video signal processing unit of control module is provided with lightning protection electrostatic discharge protective circuit, impedance matching network and differential signal is reduced to the video signal receiver of analog video signal, inputs to video signal receiver from the difference video signal of first and second lead output of this RJ45 interface after by lightning protection electrostatic discharge protective circuit and impedance matching network.
20. the connected system of a plurality of video cameras as claimed in claim 17 is characterized in that: the 4th and the 5th lead of the positive voltage of this camara module power supply and this RJ45 interface couples, and the 7th and the 8th lead of ground wire and this RJ45 interface couples.
21. the connected system of a plurality of video cameras as claimed in claim 17 is characterized in that: the control signal of this camara module or feedback signal input or output by the 3rd and the 6th lead of this RJ45 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200760536U CN201499213U (en) | 2009-06-10 | 2009-06-10 | Camera switching module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200760536U CN201499213U (en) | 2009-06-10 | 2009-06-10 | Camera switching module |
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| Publication Number | Publication Date |
|---|---|
| CN201499213U true CN201499213U (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200760536U Expired - Lifetime CN201499213U (en) | 2009-06-10 | 2009-06-10 | Camera switching module |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269274A (en) * | 2013-05-21 | 2013-08-28 | 江苏华博创意产业有限公司 | Network-controlled computer startup and shutdown system |
| CN106034197A (en) * | 2015-03-12 | 2016-10-19 | 悠克电子股份有限公司 | Web camera system |
| CN107547863A (en) * | 2017-05-15 | 2018-01-05 | 苏州蓝甲虫机器人科技有限公司 | A kind of Binocular robot |
| CN111614870A (en) * | 2020-04-24 | 2020-09-01 | 北京中庆现代技术股份有限公司 | Distributed camera management system |
| CN111654657A (en) * | 2020-05-08 | 2020-09-11 | 北京中庆现代技术股份有限公司 | Recorded broadcast system supporting POC and COC |
| CN114007010A (en) * | 2021-09-09 | 2022-02-01 | 安徽旭辰达电子科技有限公司 | Multi-path control and cutting all-in-one machine for single cable power supply and communication |
-
2009
- 2009-06-10 CN CN2009200760536U patent/CN201499213U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269274A (en) * | 2013-05-21 | 2013-08-28 | 江苏华博创意产业有限公司 | Network-controlled computer startup and shutdown system |
| CN106034197A (en) * | 2015-03-12 | 2016-10-19 | 悠克电子股份有限公司 | Web camera system |
| CN107547863A (en) * | 2017-05-15 | 2018-01-05 | 苏州蓝甲虫机器人科技有限公司 | A kind of Binocular robot |
| CN111614870A (en) * | 2020-04-24 | 2020-09-01 | 北京中庆现代技术股份有限公司 | Distributed camera management system |
| CN111654657A (en) * | 2020-05-08 | 2020-09-11 | 北京中庆现代技术股份有限公司 | Recorded broadcast system supporting POC and COC |
| CN114007010A (en) * | 2021-09-09 | 2022-02-01 | 安徽旭辰达电子科技有限公司 | Multi-path control and cutting all-in-one machine for single cable power supply and communication |
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| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20100602 |