CN203261418U - Ethernet coaxial cable converter - Google Patents
Ethernet coaxial cable converter Download PDFInfo
- Publication number
- CN203261418U CN203261418U CN 201320155155 CN201320155155U CN203261418U CN 203261418 U CN203261418 U CN 203261418U CN 201320155155 CN201320155155 CN 201320155155 CN 201320155155 U CN201320155155 U CN 201320155155U CN 203261418 U CN203261418 U CN 203261418U
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- power supply
- protection device
- lightning protection
- coaxial
- ethernet
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Abstract
The utility model discloses an Ethernet coaxial cable converter, and specifically a device capable of transmitting real-time digital high-definition network videos and a low-voltage power supply through a single coaxial cable. The Ethernet coaxial cable converter is applicable to the field of communication electronics. The Ethernet coaxial cable converter comprised two parts which are a coaxial sending terminal and a coaxial receiving terminal. The coaxial sending terminal comprises a lightning protection device 1, a lightning protection device 2, a sending power supply, an Ethernet adapter, a power supply/network signal mixed modulation chip and a lightning protection device 3. The coaxial receiving terminal comprises a lightning protection device 4, a power supply/network signal mixed modulation chip, a receiving power supply, an Ethernet adapter, a lightning protection device 5 and a lightning protection device 6. The Ethernet coaxial cable converter can reuse the existing cable infrastructures to complete the transition and upgrade from simulation monitoring to digital monitoring, and the maximum length of a transmission cable reaches 250 meters; and meanwhile, the Ethernet coaxial cable converter can supply power to a far end camera, and additional power supply cables for the camera are avoided.
Description
Technical field
The utility model relates to a kind of ethernet coaxial cable transducer, is a kind of equipment that can transmit by single coaxial cable real-time digital high-definition network video and low-tension supply specifically, is applicable to the communications electronics field.
Background technology
The networking of safety monitoring has been a kind of trend, and will play the part of important role undoubtedly in this change as the front end product rig camera of video monitoring.Process and the complete advantages such as comprehensive solution of networking based on better imaging, intelligent image, rig camera market just steadily by simulation to networked transition, relevant department's prediction, network monitoring video camera will be to be not less than 50% speed increment every year.Although network monitoring video camera is a kind of trend, its development is not one to kick and form yet, and analog video camera and web camera are inevitable can be existed within a very long time jointly.
Most of web cameras are converted to the IP packet with video image and transmit by network, and are designed to by 5 classes, 6 class Ethernet cable interconnection network video cassette recorder or video servers.Yet, 75 ohm of coaxial video cables that serviceability is good are a kind of wastes for the simple realization networking only, be converted in the process that the network digital signal transmits at video signal simultaneously, the web camera of front end and other equipment also need power supply to supply with.
The utility model content
For the problems referred to above, the utility model provides a kind of ethernet coaxial cable transducer by wall scroll 75 ohm coaxial cable transmission real-time digital high-definition network video signal and low-tension supply.
For achieving the above object, the utility model has adopted following technical scheme: a kind of ethernet coaxial cable transducer comprises coaxial transmitting terminal and coaxial receiving terminal, wherein said coaxial transmitting terminal comprises lightning protection device one, lightning protection device two, sends power supply, Ethernet Adaptation Unit, power supply/network signal hybrid modulation chip and lightning protection device three, and described coaxial receiving terminal comprises lightning protection device four, power supply/network signal mixing demodulation chip, receives power supply, Ethernet Adaptation Unit, lightning protection device five and lightning protection device six.
Described coaxial transmitting terminal is connected by 75 ohm coaxial cable with described coaxial receiving terminal.In the wherein said coaxial transmitting terminal, described lightning protection device one is electrically connected with described transmission power supply, described lightning protection device two carries out signal with described Ethernet Adaptation Unit and is connected, described transmission power supply is electrically connected with described power supply/network signal hybrid modulation chip, described Ethernet Adaptation Unit carries out signal with described power supply/network signal hybrid modulation chip and is connected, and described power supply/network signal hybrid modulation chip carries out signal with described lightning protection device three and is electrically connected.In the described coaxial receiving terminal, described lightning protection device four carries out signal and electrical connection with described power supply/network signal mixing demodulation chip, described power supply/network signal mixing demodulation chip is electrically connected with described reception power supply, simultaneously carrying out signal with described Ethernet Adaptation Unit is connected, described reception power supply is electrically connected with lightning protection device five, and described Ethernet Adaptation Unit carries out signal with lightning protection device six and is connected.
Owing to adopt the said structure design, described Ethernet coaxial converter can avoid again laying wiring at simulated monitoring system by traditional vision cable coaxial line when the digital monitor system transition is upgraded, also will combine with the cable supply power mode to remote equipment by Power over Ethernet with by coaxial cable uniquely, and then avoid and to be equipped with independent power cable to the video camera of long-distance area.Described Ethernet coaxial converter is with 100Mbps full duplex transmission network video signal in addition, transmission supports that maximum cable length reaches 250 meters, want far away more than 100 meters transmission ranges of common coaxial line transmission plan, if will realize the operation of nose cable, the use repeater of also can connecting.Described Ethernet coaxial converter is supported Ethernet SD, HD video video camera, and other accept the equipment of Power over Ethernet mode; Body is small and exquisite, can install on the wall or be installed in the camera housing.
Description of drawings
Fig. 1: the utility model structure block diagram
Fig. 2: the coaxial sending end structure schematic diagram of the utility model
Fig. 3: the coaxial receiving terminal structural representation of the utility model
Among the figure: 1---coaxial transmitting terminal, 2---coaxial receiving terminal, 1-1---lightning protection device one, 1-2---lightning protection device two, 1-3---send power supply, 1-4---Ethernet Adaptation Unit, 1-5---power supply/network signal hybrid modulation chip, 1-6---lightning protection device three, 2-1---lightning protection device four, 2-2---power supply/network signal mixing demodulation chip, 2-3---receive power supply, 2-4---Ethernet Adaptation Unit, 2-5---lightning protection device five, 2-6---lightning protection device six.
Embodiment
As shown in Figure 1, the utility model Ethernet coaxial converter comprise 1, coaxial transmitting terminal and 2, coaxial receiving terminal; As shown in Figure 2, described coaxial transmitting terminal 1 comprises lightning protection device one 1-1, and lightning protection device two 1-2 send power supply 1-3, Ethernet Adaptation Unit 1-4, power supply/network signal hybrid modulation chip 1-5 and lightning protection device three 1-6; As shown in Figure 3, described coaxial receiving terminal 2 comprises lightning protection device four 2-1, and power supply/network signal mixing demodulation chip 2-2 receives power supply 2-3, Ethernet Adaptation Unit 2-4, lightning protection device five 2-5 and lightning protection device six 2-6.Described coaxial transmitting terminal 1 be connected coaxial transmitting terminal 2 and connect by 75 ohm coaxial cable; In the described coaxial transmitting terminal 1, described lightning protection device one 1-1 is electrically connected with described transmission power supply 1-3, described lightning protection device two 1-2 carry out signal with Ethernet Adaptation Unit 1-4 and are connected, described transmission power supply 1-3 is electrically connected with described power supply/network signal hybrid modulation chip 1-5, described Ethernet Adaptation Unit 1-4 carries out signal and is connected with described power supply/network signal hybrid modulation chip 1-5, and described power supply/network signal hybrid modulation chip 1-5 carries out signal with described lightning protection device three 1-6 and is electrically connected; In the described coaxial receiver 2, described lightning protection device four 2-1 carry out signal and electrical connection with described power supply/network signal mixing demodulation chip 2-2, described power supply/network signal mixing demodulation chip 2-2 is electrically connected with signal and is connected with described reception power supply 2-3, Ethernet Adaptation Unit 2-4 respectively, described reception power supply 2-3 is electrically connected with lightning protection device five 2-5, and described Ethernet Adaptation Unit 2-4 carries out signal with described lightning protection device six 2-6 and is connected.
When 48V power pack ethernet network signal is inputted coaxial transmitting terminal from the network hard disk video recorder end, need to begin most through lightning protection device, to avoid when bearing the high-energy transient pulse, its working impedance can be down to very low immediately, allow large electric current to pass through, with voltage clamping at predeterminated level, thereby make accurate first device parts avoid damaging, then via lightning protection device, power supply is delivered to the transmission power supply, network signal is delivered to Ethernet Adaptation Unit to finish the reception to the network signal packet, seal off, control and buffer memory, then power supply and network signal pass to power supply/network signal hybrid modulation chip via sending power supply and Ethernet Adaptation Unit respectively, by this chip power supply and network signal are carried out passing to lightning protection device after the hybrid modulation again, via lightning protection device mixed power supply/signal is exported along coaxial cable.When mixed power supply/signal is inputted coaxial receiving terminal, need to pass through first lightning protection device equally, then pass to the demodulation extraction that power supply/network signal mixing demodulation chip carries out power supply and network signal, respectively power supply is passed to again the reception power supply, network signal passes to reception, encapsulation, control and the buffer memory that Ethernet Adaptation Unit carries out the network signal data, and then the power pack network signal is transferred to Remote Camera via lightning protection device again.Network video signal of Remote Camera also can arrive the network hard disk video recorder end via coaxial receiving terminal and coaxial transmitting terminal one tunnel reverse transfer during this.
So described Ethernet coaxial converter can reuse existing cable infrastructure, make a video camera once just finish the transition of simulation-to-digital, can also carry power supply with the mode that the cable power supply combines to Remote Camera by Power over Ethernet and coaxial cable simultaneously, and then avoid and to be equipped with independent power cable to the video camera of long-distance area.
Claims (1)
1. ethernet coaxial cable transducer, comprise coaxial transmitting terminal (1) and coaxial receiving terminal (2), it is characterized in that described coaxial transmitting terminal (1) comprises lightning protection device one (1-1), lightning protection device two (1-2), send power supply (1-3), Ethernet Adaptation Unit (1-4), power supply/network signal hybrid modulation chip (1-5) and lightning protection device three (1-6), described coaxial receiving terminal (2) comprises lightning protection device four (2-1), power supply/network signal mixing demodulation chip (2-2), receive power supply (2-3), Ethernet Adaptation Unit (2-4), lightning protection device five (2-5) and lightning protection device six (2-6); Described coaxial transmitting terminal (1) is connected by 75 ohm coaxial cable with described coaxial receiving terminal (2), in the wherein said coaxial transmitting terminal (1), described lightning protection device one (1-1) is electrically connected with described transmission power supply (1-3), described lightning protection device two (1-2) carries out signal with described Ethernet Adaptation Unit (1-4) and is connected, described transmission power supply (1-3) is electrically connected with described power supply/network signal hybrid modulation chip (1-5), described Ethernet Adaptation Unit (1-4) carries out signal with described power supply/network signal hybrid modulation chip (1-5) and is connected, described power supply/network signal hybrid modulation chip (1-5) carries out signal with described lightning protection device three (1-6) and is electrically connected, in the described coaxial receiving terminal (2), described lightning protection device four (2-1) carries out signal and electrical connection with described power supply/network signal mixing demodulation chip (2-2), described power supply/network signal mixing demodulation chip (2-2) is electrically connected with described reception power supply (2-3), simultaneously carrying out signal with described Ethernet Adaptation Unit (2-4) is connected, described reception power supply (2-3) is electrically connected with lightning protection device five (2-5), and described Ethernet Adaptation Unit (2-4) carries out signal with lightning protection device six (2-6) and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320155155 CN203261418U (en) | 2013-03-21 | 2013-03-21 | Ethernet coaxial cable converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320155155 CN203261418U (en) | 2013-03-21 | 2013-03-21 | Ethernet coaxial cable converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203261418U true CN203261418U (en) | 2013-10-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320155155 Expired - Fee Related CN203261418U (en) | 2013-03-21 | 2013-03-21 | Ethernet coaxial cable converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203261418U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112218042A (en) * | 2020-09-04 | 2021-01-12 | 衡阳市大井医疗器械科技有限公司 | SDI signal transmission system, transmission method, electronic endoscope and storage medium |
-
2013
- 2013-03-21 CN CN 201320155155 patent/CN203261418U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112218042A (en) * | 2020-09-04 | 2021-01-12 | 衡阳市大井医疗器械科技有限公司 | SDI signal transmission system, transmission method, electronic endoscope and storage medium |
| CN112218042B (en) * | 2020-09-04 | 2023-04-07 | 衡阳市大井医疗器械科技有限公司 | SDI signal transmission system, transmission method, electronic endoscope and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Shaoxing Aodun Electronics Co., Ltd. Document name: Notification to Pay the Fees |
|
| 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: 20131030 Termination date: 20170321 |