CN103747201A - Data transmission device based on conducting ring, video monitoring system based on conducting ring and data transmission method based on conducting ring - Google Patents
Data transmission device based on conducting ring, video monitoring system based on conducting ring and data transmission method based on conducting ring Download PDFInfo
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- CN103747201A CN103747201A CN201210416725.XA CN201210416725A CN103747201A CN 103747201 A CN103747201 A CN 103747201A CN 201210416725 A CN201210416725 A CN 201210416725A CN 103747201 A CN103747201 A CN 103747201A
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Abstract
A data transmission device based on a conducting ring of the present invention is characterized in that the signal input end of the conducting ring is equipped with a serial data conversion module used for converting a video signal from a parallel mode to a serial mode, and the signal output end of the conducting ring is equipped with a parallel data conversion module used for converting the video signal from the serial mode to the parallel mode, and a conversion module control unit used for harmonizing the parallel and serial data conversion modules to work synchronously and harmonically. When the data transmission device based on the conducting ring works, a video digital signal corresponding to the video data is converted into a serial digital signal from a parallel digital signal via the serial data conversion module, then the serial digital signal passes the conducting ring, and then is converted and reduced into the parallel data via the parallel data conversion module. The data is converted and reduced separately via a parallel differential data conversion module and a serial differential data conversion module, so that the data transmission speed is improved, the phenomenon that the transmitted images are not continuous is avoided, and the requirement for the transmission line of the conducting ring is low, when the general conducting ring is limited by the transmission speed and transmission distance at data transmission.
Description
Technical field
The present invention relates to safety monitoring technical field of data transmission, particularly a kind of conducting ring that adopts is to video monitoring data transmitting device, video monitoring system and method.
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Background technology
In technical field of video monitoring, due to video acquisition device, as video frequency pick-up head is generally dynamic monitoring, rotate.Along with the development of mechanics of communication, the speed of transfer of data is also more and more faster, and monitoring image is very clear, complete, the continuous far-end that is transferred to.
Existing looking in step monitoring generally adopts high definition conducting ring and common conducting ring, for high definition conducting ring, can transmit HD video data with the speed of 3G, but its cost is higher.For common conducting ring, can meet general transfer of data requirement.For the larger HD video data of data volume, transmission speed is subject to the wire performance impact of conducting ring, cannot improve transmission speed, easily occurs the discontinuous phenomenon of monitoring image during transmission.And existing common conducting ring is when to HD video transfer of data, due to its common transmission line, although its cost is low, affect the speed of transfer of data and the distance of transmission.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of data transmission device, video monitoring system and method based on conducting ring, this data transmission device, video monitoring system and method can improve data transmission bauds and the transmission range of existing common conducting ring, avoid occurring the discontinuous phenomenon of image of transmission, reduce the requirement to conducting ring transmission line.
In order to address the above problem, the invention provides a kind of data transmission device based on conducting ring, be somebody's turn to do the data transmission device based on conducting ring, comprise the conducting ring that connects The Cloud Terrace and camera, stator terminal signals input and camera video data output end at conducting ring are provided with the serial data modular converter that vision signal parallel data is transferred to serial data, at its rotor-end signal output part, be provided with the input of the cable that is connected watch-dog the parallel differential data conversion module that serial data is converted to parallel data, and the modular converter control unit of coordination parallel differential data conversion module and serial differential data conversion module synchronous working.
Say further, described serial data modular converter is serial differential data conversion module; Described parallel data conversion module is parallel differential data conversion module.
It is a kind of based on conducting ring video monitoring system that the present invention also provides, should comprise the camera for video acquisition based on conducting ring video monitoring system, the The Cloud Terrace being rotationally connected with camera, control the control unit of camera and The Cloud Terrace work, and the monitoring unit of signal connection control unit, between this The Cloud Terrace and camera, be provided with the conducting ring that connects electric signal transmission, at conducting ring video signal input terminal, be provided with the serial data modular converter that vision signal parallel data is transferred to serial data, in conducting ring VT, be provided with the parallel data conversion module that serial data is converted to parallel data, and the modular converter control unit of coordination parallel data conversion module and serial data modular converter synchronous working.
Say further, described serial data modular converter is serial differential data conversion module; Described parallel data conversion module is parallel differential data conversion module.
The present invention also provides a kind of data transmission method based on conducting ring, is somebody's turn to do the data transmission method based on conducting ring, comprises the following steps:
Video data is converted to corresponding parallel digital signal;
Transfer parallel digital signal to serial digital signal, by the serial data modular converter parallel video digital signal that is positioned at conducting ring video signal input terminal, be converted to after corresponding serial digital signal, from the input of conducting ring, transfer to its output;
Serial digital signal is turned and is reduced to parallel digital signal, by the parallel data conversion module serial video digital signal that is positioned at conducting ring VT, be converted to corresponding parallel digital signal and export.
Say further, by parallel differential data conversion module, parallel data are converted to serial data; Again by serial differential data conversion module by the defeated serial data parallel data that is changed to.
The present invention is based on the data transmission device of conducting ring, at conducting ring signal input part, be provided with vision signal by the parallel serial data modular converter that transfers serial to, at conducting ring signal output part, being provided with serial conversion is parallel parallel data conversion module, and coordinates the modular converter control unit of parallel and the work of serial data modular converter synchronous coordination.During work, video data by camera collection first transfers parallel digital signal to serial digital signal through serial data modular converter, and pass through conducting ring with serial digital signal, then by parallel data conversion module, serial digital signal conversion is reduced to parallel data.Because video signal is changed data respectively and reduced by parallel differential data conversion module and serial differential data conversion module, can make common conducting ring when transmission data, be subject to the limitation of transmission speed and transmission range, improve data transmission bauds, avoid occurring the discontinuous phenomenon of image of transmission, tie the requirement of conducting ring wire harness low simultaneously.
Accompanying drawing explanation
Below in conjunction with embodiment, and with reference to accompanying drawing, realization, functional characteristics and advantage to the object of the invention are described further.
Fig. 1 is the data transmission device embodiment electrical schematics that the present invention is based on conducting ring.
Fig. 2 is the data transmission method schematic flow sheet that the present invention is based on conducting ring.
Embodiment
For the object, technical scheme and the advantage that make to invent clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of invention, rather than whole embodiment.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belongs to the scope of protection of the invention.
As shown in Figure 1, the invention provides a kind of data transmission device embodiment based on conducting ring.
Should comprise by the data transmission device based on conducting ring: the conducting ring 1 that connects The Cloud Terrace (accompanying drawing does not indicate) and camera, at conducting ring video signal input terminal, be provided with the serial data modular converter 2 that vision signal parallel data is transferred to serial data, in conducting ring VT, be provided with the parallel data conversion module 3 that serial data is converted to parallel data, and coordinate the modular converter control unit 4 of parallel data conversion module and serial data modular converter synchronous working.
Specifically, between conducting ring 1 and camera video data output end, be provided with the serial data modular converter 2 that parallel video signal data is transferred to serial data, conducting ring 1 signal output part be connected watch-dog or cable before be provided with the parallel data conversion module 3 that serial data is converted to parallel data, and coordinate the modular converter control unit 4 of parallel data conversion module 3 and serial data modular converter 2 synchronous workings.Described serial data modular converter 2 is serial differential data conversion module; Described parallel data conversion module 3 is parallel differential data conversion module.
During work, first by camera collection video data, and by this video data process digitized processing, be about to video data and transfer the digital signal that video data is corresponding to.This parallel video signal is processed by serial differential data conversion module 2, exports the serial video digital signal corresponding with parallel video signal, and this serial video digital signal transfers to rotor-end from the stator terminal of conducting ring 1.Under modular converter control unit 4 is coordinated, the parallel differential data conversion module 3 that is positioned at conducting ring 1 VT turns serial video signal (reduction) for parallel video digital signal.Due to video data, especially HD video data volume is large, and while adopting common conducting ring transmission, transmission speed is subject to the wire performance impact of conducting ring, cannot improve transmission speed, and transmission path is shorter simultaneously, and state is not continuous easily to form video pictures.Compared with prior art, by parallel differential data conversion module and serial differential data conversion module, respectively data changed and reduced, can make conducting ring when transmission data, be subject to the limitation of transmission speed and transmission range, improve data transmission bauds, avoid occurring the discontinuous phenomenon of image of transmission, tie the requirement of conducting ring wire harness low simultaneously.
It is a kind of based on conducting ring video monitoring system that the present invention also provides, should comprise based on conducting ring video monitoring system: for the camera of video acquisition, the The Cloud Terrace being rotationally connected with camera, control the control unit of camera and The Cloud Terrace work, and the monitoring unit of signal connection control unit connection, between this The Cloud Terrace and camera, be provided with the conducting ring that connects electric signal transmission, at conducting ring video signal input terminal, be provided with the serial data modular converter 2 that vision signal parallel data is transferred to serial data, in conducting ring VT, be provided with the parallel data conversion module 3 that serial data is converted to parallel data, and the modular converter control unit 4 of coordination parallel data conversion module and serial data modular converter synchronous working.
Specifically, between conducting ring 1 and camera video data output end, be provided with the serial data modular converter 2 that parallel video signal data is transferred to serial data, conducting ring 1 signal output part be connected watch-dog or cable before be provided with the parallel data conversion module 3 that serial data is converted to parallel data, and coordinate the modular converter control unit 4 of parallel data conversion module 3 and serial data modular converter 2 synchronous workings.Described serial data modular converter 2 is serial differential data conversion module; Described parallel data conversion module 3 is parallel differential data conversion module.
As shown in Figure 2, on the basis of above-described embodiment, the present invention also provides a kind of data transmission method embodiment based on conducting ring.
Be somebody's turn to do the data transmission method based on conducting ring, comprise the following steps:
S10 step, is converted to parallel digital signal by video data, specifically, adopts existing processing of circuit converting unit that video certificate is converted to corresponding parallel digital signal;
S11 step, transfer parallel digital signal to serial digital signal, specifically, parallel video digital signal S10 step being generated by the serial data modular converter that is positioned at conducting ring video signal input terminal is converted to after corresponding serial digital signal, from the input of conducting ring, transfer to its output, from stator terminal, be transferred to rotor-end;
S12 step, serial digital signal is turned and is reduced to parallel digital signal, specifically, serial video digital signal S11 step being generated by the parallel data conversion module that is positioned at conducting ring VT is converted to corresponding parallel digital signal and exports, is more further processed and obtain video image by postorder circuit unit.
In the present embodiment, described serial data modular converter is serial differential data conversion module; Described parallel data conversion module is parallel differential data conversion module.
Because this serial data modular converter can be converted to parallel video digital signal corresponding serial video digital signal, this serial video digital signal transfers to rotor-end from the stator terminal of conducting ring.Under modular converter control unit is coordinated, the parallel differential data conversion module that is positioned at conducting ring VT turns serial video signal (reduction) for parallel video digital signal.Compared with prior art, by parallel differential data conversion module and serial differential data conversion module, respectively data changed and reduced, can make conducting ring when transmission data, be subject to the limitation of transmission speed and transmission range, improve data transmission bauds, avoid occurring the discontinuous phenomenon of image of transmission, tie the requirement of conducting ring wire harness low simultaneously.
Above execution mode only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to aforementioned embodiments, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each execution mode is modified, or part technical characterictic is wherein equal to replacement, and these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the each execution mode technical scheme of the present invention.
Claims (6)
1. the data transmission device based on conducting ring, comprises the conducting ring that connects The Cloud Terrace and camera, it is characterized in that:
At conducting ring video signal input terminal, be provided with the parallel data conversion module that vision signal parallel data is transferred to serial data, in conducting ring VT, be provided with the serial differential data conversion module that serial data is converted to parallel data, and coordinate the modular converter control unit of parallel differential data conversion module and serial differential data conversion module synchronous working.
2. the data transmission device based on conducting ring according to claim 1, is characterized in that:
Described serial data modular converter is serial differential data conversion module; Described parallel data conversion module is parallel differential data conversion module.
3. one kind based on conducting ring video monitoring system, comprise the The Cloud Terrace being rotationally connected for the camera of video acquisition, with camera, the control unit of controlling camera and The Cloud Terrace work, and the monitoring unit of signal connection control unit, between this The Cloud Terrace and camera, be provided with the conducting ring that connects electric signal transmission, it is characterized in that:
At conducting ring video signal input terminal, be provided with the serial data modular converter that vision signal parallel data is transferred to serial data, in conducting ring VT, be provided with the parallel data conversion module that serial data is converted to parallel data, and coordinate the modular converter control unit of parallel data conversion module and serial data modular converter synchronous working.
4. according to claim 3 based on conducting ring video monitoring system, it is characterized in that:
Described serial data modular converter is serial differential data conversion module; Described parallel data conversion module is parallel differential data conversion module.
5. the data transmission method based on conducting ring, comprises the following steps:
Video data is converted to corresponding parallel digital signal;
Transfer parallel digital signal to serial digital signal, by the serial data modular converter parallel video digital signal that is positioned at conducting ring video signal input terminal, be converted to after corresponding serial digital signal, from the input of conducting ring, transfer to its output;
Serial digital signal is turned and is reduced to parallel digital signal, by the parallel data conversion module serial video digital signal that is positioned at conducting ring VT, be converted to corresponding parallel digital signal and export.
6. the data transmission method based on conducting ring according to claim 5, is characterized in that:
By parallel differential data conversion module, parallel data are converted to serial data; Again by serial differential data conversion module by the defeated serial data parallel data that is changed to.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210416725.XA CN103747201A (en) | 2012-10-28 | 2012-10-28 | Data transmission device based on conducting ring, video monitoring system based on conducting ring and data transmission method based on conducting ring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210416725.XA CN103747201A (en) | 2012-10-28 | 2012-10-28 | Data transmission device based on conducting ring, video monitoring system based on conducting ring and data transmission method based on conducting ring |
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| CN103747201A true CN103747201A (en) | 2014-04-23 |
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| CN201210416725.XA Pending CN103747201A (en) | 2012-10-28 | 2012-10-28 | Data transmission device based on conducting ring, video monitoring system based on conducting ring and data transmission method based on conducting ring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114302375A (en) * | 2021-12-28 | 2022-04-08 | 德氪微电子(深圳)有限公司 | Slip ring, slip ring signal transmission method and communication device |
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| US20110085036A1 (en) * | 2009-10-13 | 2011-04-14 | Shenzhen Infinova Limited | High speed dome camera with optic-electric slip ring arrangement |
| CN102186073A (en) * | 2011-04-27 | 2011-09-14 | 浙江大华技术股份有限公司 | HD-SDI (High Definition-Serial Digital Interface) video signal transmission system and method in high-speed dome camera |
| CN102714693A (en) * | 2009-10-16 | 2012-10-03 | 安讯士有限公司 | Pan-tilt camera |
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| CN200962179Y (en) * | 2006-09-29 | 2007-10-17 | 陈素贤 | Full-direction rotating monitor pan/tilt |
| US20110085036A1 (en) * | 2009-10-13 | 2011-04-14 | Shenzhen Infinova Limited | High speed dome camera with optic-electric slip ring arrangement |
| CN102714693A (en) * | 2009-10-16 | 2012-10-03 | 安讯士有限公司 | Pan-tilt camera |
| CN102014277A (en) * | 2010-12-03 | 2011-04-13 | 杭州海康威视数字技术股份有限公司 | Video monitoring system, video monitoring method and spherical camera |
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Application publication date: 20140423 |