CN110536091A - A kind of shaft power source video transmitter - Google Patents
A kind of shaft power source video transmitter Download PDFInfo
- Publication number
- CN110536091A CN110536091A CN201910918290.0A CN201910918290A CN110536091A CN 110536091 A CN110536091 A CN 110536091A CN 201910918290 A CN201910918290 A CN 201910918290A CN 110536091 A CN110536091 A CN 110536091A
- Authority
- CN
- China
- Prior art keywords
- video
- power supply
- power source
- signal
- vision signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- -1 BNC compound Chemical class 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 238000010030 laminating Methods 0.000 claims abstract description 10
- 238000004088 simulation Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
- H04N7/102—Circuits therefor, e.g. noise reducers, equalisers, amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
- H04N7/108—Adaptations for transmission by electrical cable the cable being constituted by a pair of wires
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The present invention discloses a kind of shaft power source video transmitter, comprising: a 12V output interface, a video input interface, a power supply separation module, a vision signal laminating module and a BNC compound interface.It uses coaxial cable as some transmission medium video high-definition signal, input power DC24~36V can stablize output 12V voltage so that video camera takes electric needs, it realizes from computer room to network terminal whole process without power delivery, simulation high-definition video signal and power supply distance can be extended to 400 meters using 75-5 coaxial cable.
Description
Technical field
The present invention relates to communication transfer technical fields more particularly to a kind of for the novel same of electric power and video signal transmission
Axis power supply video transmitter.
Background technique
The continuous development and application of many New Products propose requirements at the higher level to field of video transmission, especially
Transmission of video and data transmission and monitoring system in security protection, monitoring trade.Traditional monitoring system mainly uses coaxial electrical
Cable carries out video signal transmission, coaxial electrical cables can only transmission of one line vision signal, be unable to simultaneous transmission electric power, it is also necessary to
In addition be laid with power line, not only increase equipment cost, also increase artificial construction's cost, therefore research and develop one kind based on coaxial cable i.e.
Transmission high-definition video signal transmits power supply again, i.e., the signals such as HD video, coaxial and power supply is combined with each other, is superimposed upon
It is transmitted on a piece coaxial line, becomes those skilled in the art's urgent problem to be solved.A more existing line is total to cable biography in the market
Defeated device, the various electromagnetism noise jamming by surrounding are more, and signal is decayed so that system working effect is poor.
Summary of the invention
To solve the above problems, the present invention provides a kind of shaft power source video transmitter, using coaxial cable as biography
Defeated medium, can be compound by the signals such as HD video, coaxial and power supply, is superimposed upon simultaneous transmission on a coaxial line.
In order to achieve the above objectives, present invention generally provides following technical solutions:
A kind of shaft power source video transmitter, comprising: a 12V output interface, a video input interface, a power supply
Separation module, a vision signal laminating module and a BNC compound interface；
12V output interface one end connection video camera is powered for it, and the other end passes through connection power supply separation module transmission
Power supply is connect with BNC compound interface；
Video input interface one end connection video camera is inputted for vision signal, and the other end is superimposed by vision signal
Module transfer vision signal is connect with BNC compound interface；
The power supply and vision signal are integrated on BNC compound interface；
The BNC compound interface connecting coaxial cable.
As previously mentioned, the vision signal laminating module completes DC power supply and simulates the high fdrequency component of high-definition video signal
Superposition.
As previously mentioned, the power supply separation module completes high-definition video signal and power supply separation function.
In any of the above-described kind of shaft power source video transmitter, the shaft power source video transmitter supports transmission various video
Signal, including HDCVI, HDTVI, AHD and CVBS vision signal.
In any of the above-described kind of shaft power source video transmitter, the shaft power source video transmitter support 720P/25,
720P/30,108OP/25,1080P/30,3MP, 4MP, 5MP high-definition signal.
In any of the above-described kind of shaft power source video transmitter, the shaft power source video transmitter transmission video signal and
The distance of power supply is 400 meters.
By above-mentioned technical proposal, the advantages of inventive network coaxial transceiver, is as follows:
Shaft power source video transmitter of the invention can be by HD video, same using coaxial cable as transmission medium
The signals such as axis are compound with power supply, are superimposed upon simultaneous transmission on a coaxial line, i.e., can transmit height on a coaxial line
Clear vision signal can transmit electric power again, lay power line without additional.A kind of shaft power source video transmitter module collection power supply biography
Defeated, coaxial to control, transmission of video and one, in engineering wiring, this can not only save considerable cost, but also can shorten
Construction time, simultaneous transmission distance are remote maximum up to 400 meters.
Detailed description of the invention
Fig. 1 is schematic diagram of internal structure of the invention；
Fig. 2 is circuit diagram of the invention；
Fig. 3 is use connection schematic diagram of the invention；
Wherein: 1- transmitting terminal, 11-12V output interface, 12- power supply separation module, 13- video input interface, 14- video
Signal averaging module, 15-BNC compound interface, the receiving end 2-, 3- video camera, 4- power supply adaptor, 5- multichannel active receiver,
6- video server DVR, 7- coaxial cable.
Specific embodiment
The present invention provides a kind of shaft power source video transmitter, to make the purpose of the present invention, technical solution and effect more
Clear, clear, the present invention is described in more detail below.It should be appreciated that specific embodiment described herein is only used to
It explains the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of shaft power source video transmitter module includes a 12V output interface 11, a video is defeated
Incoming interface 13, a power supply separation module 12, a vision signal laminating module 14, a BNC compound interface 15.Wherein 12V
Output interface 11 connects video camera and powers for it, and video input interface 13 connects video camera and inputs for vision signal, power supply point
From the centrifugation that module 12 is used for power supply and vision signal, vision signal laminating module 14 is superimposed upon electricity for vision signal
It is transmitted on source and in same root coaxial cable, 15 connecting coaxial cable of BNC compound interface is transmitted to receiving end.
Shaft power source video transmitter further includes power supply separation module and vision signal laminating module, and wherein vision signal is folded
Add module to be made of components such as D3 diode, L4 inductance, C5 capacitor, R5 resistance, U2, Q3, C3 capacitors, mainly completes direct current
Power supply is superimposed with the high fdrequency component of simulation high-definition video signal.
As shown in Fig. 2, the principle of vision signal laminating module is: vision signal is inputted by 1 foot of the port J2, and U2 provides power supply
Required voltage, then amplify through Q3 triode, according to the characteristic of the logical exchange stopping direct current of capacitor, capacitor C5 is high for DC power supply
Impedance, so C5 can separate DC voltage and filter, simulation HD video processing chip, DC power supply be will not influence
To the input of HD video.And to the high fdrequency component in the simulation HD video source inputted from interface J2, belong to high frequency ac signal.
For high frequency ac signal, the impedance of capacitor C5 is lower, i.e., for simulating HD video source, from input J2 to simulation high definition
What is experienced during video is Low ESR.But by D3, L4, termination matching parallel connection circuit for simulate HD video source height
Belong to high impedance for frequency component, i.e., for the high fdrequency component for simulating high-definition video signal, experiences to power end receiving end
Impedance it is larger.By this principle, high definition analog video source can be kept apart with VCC, make high definition analog video source can be with
It is added on VCC, it is mutually unaffected, it is not mutually exclusive, completes the function of being superimposed power supply on simulation HD video line.
Power supply separation module is by D3 diode, L4 inductance, U1, L3 inductance, L1 inductance, R7 resistance, R8 resistance, Q1, Q2, R9
The components such as resistance, C7 capacitor, R10 resistance, C16 capacitor, C17 capacitor composition, can complete high-definition video signal and power supply point
From function.
As shown in Fig. 2, the principle of power supply separation module is: leading to direct current every the characteristic of exchange, to DC power supply according to inductance
For, L4 is to no induction reactance, i.e., for DC power supply, in D3, L4, circuit on experience and be comparable to 0 impedance, power supply can
To be directly output to Q1, Q2 from coaxial interface BNC compound interface, and for vision signal, because vision signal belongs to high frequency
AC signal is consequently belonging to high impedance, and can realize the centrifugation of power supply and vision signal.Pass through external bias parameter again
Setting makes triode Q1, Q2 be in amplification region, makes Q1, and 2 voltage of pin of Q2 is higher than 2 voltage of pin, and 2 voltage of pin is higher than pipe
Foot, such supply current pass through Q1, after Q2 amplification, then by pin flow to inductance L3.By U1 power supply IC, the conversion of L1 composition
Then the constant 12V DC power supply of circuit output is output to video camera again, and powers to video camera.
The working situation of application is as shown in Figure 3: shaft power source video transmitter can be used as transmitting terminal 1 and receiving end 2 is matched
To using, the 12V output interface 11 of transmitting terminal 1 connects video camera 3 and powers for it, and the video input interface 13 of transmitting terminal 1 connects
Video camera 3 is inputted for vision signal, and 15 connecting coaxial cable 7 of BNC compound interface is transmitted to the BNC compound interface of receiving end,
The 12V output interface of receiving end connects input power adapter 4, is used to input power DC24~36V passing through 2 He of receiving end
Coaxial cable 7 is transmitted to transmitting terminal 1, and the video input interface of receiving end connects video server DVR6.BNC compound interface 15 connects
The coaxial cable 7 connect is 75-5 coaxial cable.
Shaft power source video transmitter multiple can also be connect together as transmitting terminal 1 with a multichannel active receiver 5
It uses, as shown in figure 3, four shaft power source video transmitters as transmitting terminal 1 are as the scene that above-mentioned pairing uses, one
End is connect with video camera 3, and 12V output interface 11 connects video camera 3 and powers for it, and video input interface 13 connects video camera 3 and uses
It is inputted in vision signal；The other end passes through coaxial cable 7 and connects four road active receivers 5, and four road active receivers 5 pass through again
Coaxial cable 7 connects video server DVR6.The coaxial cable 7 that transmitting terminal 1 and multichannel active receiver 5 are directly connected to is 75-5
Coaxial cable.Multichannel active receiver 5 supports input power DC24~36V.
A kind of shaft power source video transmitter module provided by the invention is regarded using coaxial cable as some transmission medium
Frequency high-definition signal, input power DC24~36V can stablize output 12V voltage so that video camera takes electric needs, realize from computer room
It is not necessarily to power delivery to network terminal whole process, simulation high-definition video signal and power supply distance can be extended using 75-5 coaxial cable
To 400 meters.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (6)
1. a kind of shaft power source video transmitter characterized by comprising a 12V output interface, a video input connect
Mouth, a power supply separation module, a vision signal laminating module and a BNC compound interface；
12V output interface one end connection video camera is powered for it, and the other end transmits power supply by connection power supply separation module,
It is connect with BNC compound interface；
Video input interface one end connection video camera is inputted for vision signal, and the other end passes through vision signal laminating module
Transmission video signal is connect with BNC compound interface；
The power supply and vision signal are integrated on BNC compound interface；
The BNC compound interface connecting coaxial cable.
2. shaft power source video transmitter according to claim 1, it is characterised in that: the vision signal laminating module is complete
It is superimposed at DC power supply with the high fdrequency component of simulation high-definition video signal.
3. shaft power source video transmitter according to claim 1, it is characterised in that: the power supply separation module is completed high
Clear vision signal and power supply separation function.
4. shaft power source video transmitter according to claims 1 to 3, it is characterised in that: the shaft power source video passes
Defeated device supports transmission various video signal, including HDCVI, HDTVI, AHD and CVBS vision signal.
5. shaft power source video transmitter according to claims 1 to 3, it is characterised in that: the shaft power source video passes
Defeated device supports 720P/25,720P/30,108OP/25,1080P/30,3MP, 4MP, 5MP high-definition signal.
6. shaft power source video transmitter according to claims 1 to 3, it is characterised in that: the shaft power source video passes
The distance of defeated device transmission video signal and power supply is 400 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910918290.0A CN110536091A (en) | 2019-09-26 | 2019-09-26 | A kind of shaft power source video transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910918290.0A CN110536091A (en) | 2019-09-26 | 2019-09-26 | A kind of shaft power source video transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110536091A true CN110536091A (en) | 2019-12-03 |
Family
ID=68670347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910918290.0A Pending CN110536091A (en) | 2019-09-26 | 2019-09-26 | A kind of shaft power source video transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110536091A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010081144A (en) * | 2008-09-25 | 2010-04-08 | Panasonic Electric Works Co Ltd | Dc superposition coaxial system |
| CN202750160U (en) * | 2012-05-10 | 2013-02-20 | 深圳市奇脉电子技术有限公司 | Active twisted-pair video emitter sharing power supply with camera |
| CN104333743A (en) * | 2014-11-25 | 2015-02-04 | 深圳市捷顺科技实业股份有限公司 | Video transmission device |
| CN104702879A (en) * | 2015-02-09 | 2015-06-10 | 杭州海康威视数字技术股份有限公司 | Rear end and front end processing circuits and coaxial power supply circuit |
| CN206865629U (en) * | 2017-06-23 | 2018-01-09 | 深圳市安星安防科技有限公司 | Coaxial cable power supply video transmitter |
| WO2018233268A1 (en) * | 2017-06-21 | 2018-12-27 | Zhejiang Dahua Technology Co., Ltd. | System and method for mixed transmission of signals and power supply through a single cable |
| CN210958560U (en) * | 2019-09-26 | 2020-07-07 | 深圳市安星安防科技有限公司 | Coaxial power supply video transmitter |
-
2019
- 2019-09-26 CN CN201910918290.0A patent/CN110536091A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010081144A (en) * | 2008-09-25 | 2010-04-08 | Panasonic Electric Works Co Ltd | Dc superposition coaxial system |
| CN202750160U (en) * | 2012-05-10 | 2013-02-20 | 深圳市奇脉电子技术有限公司 | Active twisted-pair video emitter sharing power supply with camera |
| CN104333743A (en) * | 2014-11-25 | 2015-02-04 | 深圳市捷顺科技实业股份有限公司 | Video transmission device |
| CN104702879A (en) * | 2015-02-09 | 2015-06-10 | 杭州海康威视数字技术股份有限公司 | Rear end and front end processing circuits and coaxial power supply circuit |
| WO2018233268A1 (en) * | 2017-06-21 | 2018-12-27 | Zhejiang Dahua Technology Co., Ltd. | System and method for mixed transmission of signals and power supply through a single cable |
| CN206865629U (en) * | 2017-06-23 | 2018-01-09 | 深圳市安星安防科技有限公司 | Coaxial cable power supply video transmitter |
| CN210958560U (en) * | 2019-09-26 | 2020-07-07 | 深圳市安星安防科技有限公司 | Coaxial power supply video transmitter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104702879B (en) | A kind of rear end, the process circuit of front end and supply power coaxially circuit | |
| CN204465724U (en) | The treatment circuit of a kind of rear end, front end and supply power coaxially circuit | |
| CN206073362U (en) | A kind of communicator of air conditioner indoor and outdoor machine | |
| CN204258828U (en) | Realize Set Top Box and the module-integrated network interface circuit of EOC | |
| CN110536091A (en) | A kind of shaft power source video transmitter | |
| CN206865629U (en) | Coaxial cable power supply video transmitter | |
| CN201821447U (en) | Device for transmitting videos, audios, control signals and power supplies in long distance | |
| CN204515460U (en) | A kind of goat monitoring system | |
| CN210958560U (en) | Coaxial power supply video transmitter | |
| CN203261418U (en) | Ethernet coaxial cable converter | |
| CN206341308U (en) | A kind of vision composite control apparatus | |
| CN107360456A (en) | A kind of remote controlled multimedia dispensing device, reception device and Transmission system | |
| CN103326249A (en) | Multi-function power box for surveillance camera | |
| CN201467268U (en) | Video anti-jammer | |
| CN204270282U (en) | A kind of KVM access device with VGA split screen function | |
| CN206865632U (en) | Video transmitter | |
| CN104994320B (en) | A kind of HDMI service equipments | |
| CN207075061U (en) | A kind of remote controlled multimedia dispensing device, reception device and Transmission system | |
| CN207053527U (en) | A kind of multimedia dispensing device, reception device and Transmission system for transmitting electric energy | |
| CN201418134Y (en) | Video separating distributor | |
| CN203260907U (en) | Multifunctional power box for surveillance camera | |
| CN202737865U (en) | PHY TO PHY onboard connection device in short-distance communication | |
| CN206212004U (en) | Mobile communication network relay | |
| CN206865631U (en) | 16 road power supply video transmitters | |
| CN204442555U (en) | A kind of twisted-pair line video transmission device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |