CN204104053U - A kind of transmitting device of security protection high-definition digital video signal - Google Patents
A kind of transmitting device of security protection high-definition digital video signal Download PDFInfo
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- CN204104053U CN204104053U CN201420586044.2U CN201420586044U CN204104053U CN 204104053 U CN204104053 U CN 204104053U CN 201420586044 U CN201420586044 U CN 201420586044U CN 204104053 U CN204104053 U CN 204104053U
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Abstract
The utility model discloses a kind of transmitting device of security protection high-definition digital video signal, main body is video camera, has additional code stream transducer in described video camera; Described code stream transducer comprises microprocessor chip, and microprocessor chip is also connected with IC chip, memory and peripheral circuit; Described microprocessor chip is also connected with Ethernet interface; Described IC chip is also connected with ide interface.The utility model is in the transformation of old analog video camera system upgrade, the coaxial cable of the original analog video camera that cloth is good can be utilized to transmit the signal of high-definition digital video video camera, thus can save a large amount of manpowers, time and fund for cloth five class network cable transmission line again in system upgrade transformation.To the camera supervised system of newly-built high-definition digital video, due to 8 road high-definition digital video signals can be transmitted at most with 1 coaxial cable, the wiring of five a large amount of class network cable transmission lines and corresponding wiring installation time and engineering funds also can be saved.
Description
Technical field
The utility model relates to a kind of transmitting device of security protection high-definition digital video signal, belongs to TV monitoring and controlling field.
Background technology
Along with the raising of whole society's awareness of safety, video camera is widely used in station, harbour, road, bank, market, hotel and residential quarter etc., collects evidence, the work such as to solve a case brings great convenience to video recording.In the past, what old TV monitor system adopted was all analog video camera, and the analog video signal that video camera exports is by co-axial cables transport to Control Room, then selected to be switched to video-frequency monitor through video matrix, watched for Security Personnel.
Along with the fast development of high-definition digital video technology, high-definition digital video video camera is replacing analog video camera becomes main flow equipment.Each high-definition digital video video camera with five class netting twines by digital signal transmission to the network switch, decode through NVR again, be transported to video-frequency monitor, for Security Personnel's viewing, such as Chinese patent CN 201541299U discloses a kind of high-definition network camera, comprise camera lens, cabinet, integrated circuit, external power supply and H.264HD codec chip, and the DDR memory, NAND FLASH memory, high definition inductor etc. that are connected with H.264HD codec chip.This equipment exist in TV monitor system field following in shortcoming:
(1) is analog video camera due to what adopt in old TV monitor system, has that definition is not high, problem to recognition of face difficulty.Video recording collect evidence, the work such as to solve a case brings many limitation, be therefore necessary in system upgrade transformation by high-definition digital video video camera replacement analog video camera.Be co-axial cables transport vision signal due to what adopt in old simulated television supervisory control system, if system uses high-definition digital video video camera instead, five class network cable transmission vision signals must be adopted.Therefore must abandon the coaxial cable transmission line originally spending a large amount of human and material resources and fund to lay in system upgrade transformation, and then spend a large amount of human and material resources and fund to lay five new class network cable transmission lines;
(2) to the camera supervised system of newly-built high-definition digital video, due to each high-definition digital video video camera with five class netting twines by digital signal transmission to the network switch, a large amount of human and material resources and fund will be spent equally to lay five class network cable transmission lines.
Therefore, how original high-definition digital video video camera was exported and need to convert the IEEE P1901 high-definition digital video signal that can be suitable for co-axial cables transport to the H.264 high-definition digital video signal of five class network cable transmissions, to realize with 1 co-axial cables transport 8 road high-definition digital video signal, it is current those skilled in the art's urgent need to solve the problem.
Utility model content
The purpose of this utility model is to provide a kind of transmitting device of security protection high-definition digital video signal, 8 road high-definition digital video signals can be transmitted at most with 1 coaxial cable, also can save the wiring of five a large amount of class network cable transmission lines and corresponding wiring installation time and engineering funds.
The technical solution adopted in the utility model is: a kind of transmitting device of security protection high-definition digital video signal, and main body is video camera, and its innovative point is: have additional code stream transducer in described video camera; Described code stream transducer comprises microprocessor chip, and microprocessor chip is also connected with IC chip, memory and peripheral circuit; Described microprocessor chip is also connected with Ethernet interface; Described IC chip is also connected with ide interface.
Further, described micro-chip processor is 32 arm processor chips, includes MAC processing capacity and supports high-quality QoS and HD-PLC Ethernet bridge, also comprise in chip highly complete AFE (analog front end) AFE, with the logic amplifier of chip synchronised and synthesizer.
Further, described IC chip is highly integrated AFE (analog front end) PLC transceiver ic chip.
Further, described memory is 2M byte 16 RAM.
Further, described IC chip, memory are all connected with microprocessor chip in the mode of PCI bus with peripheral circuit.
Further, described code stream transducer is of a size of 38mm*38mm.
The beneficial effects of the utility model are as follows:
(1) the utility model is in the transformation of old analog video camera system upgrade, the coaxial cable of the original analog video camera that cloth is good can be utilized to transmit the signal of high-definition digital video video camera, thus can save a large amount of manpowers, time and fund for cloth five class network cable transmission line again in system upgrade transformation;
(2) the utility model is to the camera supervised system of newly-built high-definition digital video, due to 8 road high-definition digital video signals can be transmitted at most with 1 coaxial cable, the wiring of five a large amount of class network cable transmission lines and corresponding wiring installation time and engineering funds also can be saved;
(3) code stream change-over circuit of the present utility model is of a size of 38mm*38mm standard size circuit board, is convenient to be arranged on various miniature camera inner, without the need to changing video camera size;
(4) 32 arm processor chips of the present utility model realize high performance microwave converted quadrature frequency division multiplex function; The MAC processing capacity that chip includes supports high-quality QoS and HD-PLC ethernet bridging function; Qos feature uses fixing communication speed under ensureing different communication ranges, and the transmission comprising video stream data receives;
(5) PLC transceiver ic of the present utility model.Supported data transmission rate is up to 80 MSPS(1,000,000 sampling/seconds) Rx passage and 160 MSPS(1,000,000 sampling/seconds) Tx passage.Be digital interface, full-duplex operation is provided.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
Fig. 1 is the overall structure schematic diagram of the utility model code stream transducer.
Fig. 2 is the video camera that the utility model has installed code stream change-over circuit, with the schematic diagram of coaxial cable parallel connection, series-connected transmission high-definition digital video.
Embodiment
In order to make 1 coaxial cable can transmit 8 road high-definition digital videos simultaneously, need the high-definition digital video of former digital camera that H.264 normative translation is for meeting IEEE P1901 specification, therefore the utility model increases code stream transducer in video camera.
Code stream conversion electrical equipment of the present utility model, as shown in Figure 1: code stream transducer comprises microprocessor chip 1, microprocessor chip is also connected with IC chip 2, memory 3 and peripheral circuit; Microprocessor chip 1 is also connected with Ethernet interface; IC chip 2 is also connected with ide interface.Wherein, microprocessor chip 1 is 32 arm processor chips, include MAC processing capacity and support high-quality QoS and HD-PLC Ethernet bridge, also comprise in microprocessor chip 1 highly complete AFE (analog front end) AFE, with the logic amplifier of chip synchronised and synthesizer, IC chip 2 is highly integrated AFE (analog front end) PLC transceiver ic chip, and memory 3 is 2M byte 16 RAM.
32 arm processor chips realize high performance microwave converted quadrature frequency division multiplex function.Include MAC processing capacity and support high-quality QoS, and HD-PLC ethernet bridging function.Qos feature uses fixing communication speed under ensureing different communication ranges, and the transmission comprising video stream data receives.Comprise highly complete AFE (analog front end) (AFE) in chip, PLC is without the need to other AFE (analog front end) IC.The synchronised logic amplifier of a monolithic and synthesizer provide necessary monocrystalline clock signal or clock source.
In code stream change-over circuit, another block IC chip is highly integrated AFE (analog front end) PLC transceiver ic, and major function is that supported data transmission rate is up to 80 MSPS(1,000,000 sampling/seconds) Rx passage and 160 MSPS(1,000,000 sampling/seconds) Tx passage.Be digital interface, full-duplex operation is provided.
Above-mentioned 2 chip blocks add that the standard size circuit board of 38mm*38mm size made by the peripheral circuit of 1 external 2M byte, 16 RAM and necessity, because this code stream change-over circuit is of a size of 38mm*38mm standard size circuit board, be convenient to be arranged on various miniature camera inner, without the need to changing video camera size.
Coaxial cable group as shown in Figure 2: the video camera 1 having installed code stream change-over circuit, by the network switch 3, blue net module 2 and netting twine 7, in parallel with coaxial cable, series-connected transmission high-definition digital video, no matter be single-point access 4, serial multi-drop access 5 or parallel multiple spot access 6, the coaxial cable of the original analog video camera 1 that cloth is good is utilized to transmit the signal of high-definition digital video video camera 1, 8 road high-definition digital video signals can be transmitted at most with a coaxial cable, also the wiring of five a large amount of class network cable transmission lines and corresponding wiring installation time and engineering funds can be saved.
The above is preferred implementation of the present utility model, can not limit the interest field of the utility model with this.It should be pointed out that for those skilled in the art, the technical solution of the utility model is modified or equivalent replacement, do not depart from protection range of the present utility model.
Claims (6)
1. a security protection transmitting device for high-definition digital video signal, main body is video camera, it is characterized in that: have additional code stream transducer in described video camera; Described code stream transducer comprises microprocessor chip, and microprocessor chip is also connected with IC chip, memory and peripheral circuit; Described microprocessor chip is also connected with Ethernet interface; Described IC chip is also connected with ide interface.
2. the transmitting device of security protection high-definition digital video signal according to claim 1, it is characterized in that: described micro-chip processor is 32 arm processor chips, include MAC processing capacity and support high-quality QoS and HD-PLC Ethernet bridge, also comprise in chip highly complete AFE (analog front end) AFE, with the logic amplifier of chip synchronised and synthesizer.
3. the transmitting device of security protection high-definition digital video signal according to claim 1, is characterized in that: described IC chip is highly integrated AFE (analog front end) PLC transceiver ic chip.
4. the transmitting device of security protection high-definition digital video signal according to claim 1, is characterized in that: described memory is 2M byte 16 RAM.
5. the transmitting device of security protection high-definition digital video signal according to claim 1, is characterized in that: described IC chip, memory are all connected with microprocessor chip in the mode of PCI bus with peripheral circuit.
6. the transmitting device of security protection high-definition digital video signal according to claim 1, is characterized in that: described code stream transducer is of a size of 38mm*38mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420586044.2U CN204104053U (en) | 2014-10-11 | 2014-10-11 | A kind of transmitting device of security protection high-definition digital video signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420586044.2U CN204104053U (en) | 2014-10-11 | 2014-10-11 | A kind of transmitting device of security protection high-definition digital video signal |
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| CN204104053U true CN204104053U (en) | 2015-01-14 |
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| CN201420586044.2U Active CN204104053U (en) | 2014-10-11 | 2014-10-11 | A kind of transmitting device of security protection high-definition digital video signal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303341A (en) * | 2016-10-13 | 2017-01-04 | 杭州恒生数字设备科技有限公司 | A kind of coaxial high-definition network switch |
-
2014
- 2014-10-11 CN CN201420586044.2U patent/CN204104053U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303341A (en) * | 2016-10-13 | 2017-01-04 | 杭州恒生数字设备科技有限公司 | A kind of coaxial high-definition network switch |
| CN106303341B (en) * | 2016-10-13 | 2019-02-15 | 杭州恒生数字设备科技有限公司 | A kind of coaxial high-definition network interchanger |
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| GR01 | Patent grant |