CN111787293A - Video coding system - Google Patents
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- CN111787293A CN111787293A CN202010801842.2A CN202010801842A CN111787293A CN 111787293 A CN111787293 A CN 111787293A CN 202010801842 A CN202010801842 A CN 202010801842A CN 111787293 A CN111787293 A CN 111787293A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/24—Systems for the transmission of television signals using pulse code modulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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Abstract
The invention discloses a video coding system, which comprises a POE switch and at least one IP video coder connected with the POE switch through a cable; the IP video encoder comprises a data acquisition port, a data processing center, a power supply module, an Ethernet interface and an optical fiber interface; the data acquisition port is in communication connection with the data processing center, and the data processing center is used for performing data conversion operation on the information source data acquired by the data acquisition port to generate Ethernet data; the optical fiber interface and the Ethernet interface are respectively in communication connection with the data processing center, the Ethernet interface and the optical fiber interface are used for outputting Ethernet data to the POE switch, and the Ethernet interface is also used for acquiring initial voltage provided by the POE switch; the power module is connected with the Ethernet interface and used for adjusting the initial voltage to the rated voltage of the IP video encoder, so that the use flexibility of the IP video encoder is improved.
Description
Technical Field
The present invention relates to the field of video coding technologies, and in particular, to a video coding system.
Background
With the continuous development of audio and video industry technology, people have higher and higher requirements on the quality of video images, and with the continuous maturity of the IP video coding technology, the cost of the low-delay coding technology is gradually reduced, and the IP video coder is gradually popularized, so that the IP video coder is gradually an indispensable member in the audio and video processing field due to the strong compatibility and the simplicity of wiring.
However, the conventional IP video encoder needs a network cable for data transmission, and also needs to provide a power supply cable for supplying power, which limits the wiring range of the IP video encoder and has low flexibility in use.
Disclosure of Invention
The invention provides a video coding system, which solves the technical problems of small wiring range and low use flexibility of an IP video coder in the prior art.
The invention provides a video coding system, which comprises an active Ethernet POE switch and at least one Internet Protocol (IP) video coder connected with the POE switch through a cable;
the IP video encoder comprises a data acquisition port, a data processing center, a power supply module, an Ethernet interface and an optical fiber interface;
the data acquisition port is in communication connection with the data processing center, and the data processing center is used for performing data conversion operation on the information source data acquired by the data acquisition port to generate Ethernet data;
the optical fiber interface and the Ethernet interface are respectively in communication connection with the data processing center, and the Ethernet interface and the optical fiber interface are used for outputting the Ethernet data;
the Ethernet interface and the optical fiber interface are respectively connected with the POE switch through cables, and the Ethernet interface is further used for acquiring initial voltage provided by the POE switch;
the power module is connected with the Ethernet interface and used for adjusting the initial voltage to the rated voltage of the IP video encoder.
Optionally, the source data includes video data, and the data processing center includes an expansion chip, a switching chip, and a plurality of IP encoding chips; the data conversion operation comprises a data compression operation and a data encoding operation;
the extension chip is in communication connection with the IP coding chips respectively and is used for sending the video data to the IP coding chips respectively;
the plurality of IP coding chips are respectively in communication connection with the exchange chip and are used for executing the data coding operation on the plurality of video data according to different coding modes to generate intermediate data; performing the data compression operation on the intermediate data to generate Ethernet data respectively corresponding to the plurality of video data;
the exchange chip is respectively in communication connection with the optical fiber interface and the Ethernet interface, and the exchange chip is used for receiving the Ethernet data and outputting the Ethernet data through the optical fiber interface and/or the Ethernet interface.
Optionally, the source data further includes USB data, audio data, and central control data;
the data processing center also comprises a USB hub, an audio I/O interface and a central control interface which are respectively connected with the plurality of IP coding chips;
the USB concentrator is used for receiving the USB data and respectively sending the USB data to the plurality of IP coding chips;
the audio I/O interface is used for receiving the audio data and respectively sending the audio data to the plurality of IP coding chips;
the central control interface is used for receiving the central control data and respectively sending the central control data to the plurality of IP coding chips; the central control data is used for controlling the working states of the plurality of IP coding chips.
Optionally, the central control interface is further configured to control a preset information source to be powered on or powered off; the preset source is used for generating the source data.
Optionally, the power module comprises a rectification module;
the rectification module is connected with the Ethernet interface;
the rectification module is used for performing filtering operation and rectification operation on the initial voltage according to a preset POE protocol to obtain a target voltage; the target voltage is a rated voltage of the IP video encoder.
Optionally, the power supply module includes a rectification module, a power supply switching module and an external power supply module;
the power supply switching module is respectively connected with the rectifying module and the external power supply module;
the rectification module is connected with the Ethernet interface;
the rectification module is used for performing filtering operation and rectification operation on the initial voltage according to a preset POE protocol to obtain a target voltage; the target voltage is the rated voltage of the IP video encoder;
the external power supply module is used for receiving the voltage of a preset standard power supply; the preset standard power supply is a voltage source for providing rated voltage of the IP video encoder;
the power supply switching module is used for switching to the rectifying module to provide the target voltage for the IP video encoder when the external power supply module cannot provide the voltage of the preset standard power supply;
alternatively, the first and second electrodes may be,
and when the rectifying module cannot provide the target voltage for the IP video encoder, switching to the external power supply module to provide the voltage of a preset standard power supply for the IP video encoder.
Optionally, the POE switch is a gigabit switch.
Optionally, the central control data includes infrared signal data, RS232 signal data, or RS485 signal data.
Optionally, the cable connection between the ethernet interface and the POE switch is a network cable connection;
the optical fiber interface is connected with the POE switch in a cable connection mode through optical fibers.
Optionally, the ethernet interface is an RJ45 interface.
According to the technical scheme, the invention has the following advantages:
in the embodiment of the invention, a video coding system is provided, which comprises an IP video encoder and a POE switch connected by a cable, wherein the IP video encoder collects source data by data acquisition disconnection, generates ethernet data after performing data conversion operation on the source data by a data processing center, and outputs the ethernet data through an optical fiber interface or an ethernet interface; simultaneously through being connected of POE switch and ethernet interface, acquire the initial voltage that the POE switch provided, will through power module initial voltage adjustment is IP video encoder's rated voltage, compares in current IP video encoder and has got rid of the restriction of power supply line, makes IP video encoder's wiring more nimble, need not to spend a large amount of manpower and materials to pay close attention to on-the-spot electric power system and walk the line, makes IP video encoder's network deployment and dilatation convenience increase, improves IP video encoder's use flexibility.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a video coding system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal structure of an IP video encoder according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a video coding system, which is used for solving the technical problems of small wiring range and low use flexibility of an IP video coder in the prior art.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a video coding system according to an embodiment of the present invention.
The invention provides a video coding system, which comprises an active Ethernet POE switch and at least one Internet Protocol (IP) video coder connected with the POE switch through a cable;
the IP video encoder comprises a data acquisition port, a data processing center, a power supply module, an Ethernet interface and an optical fiber interface;
the data acquisition port is in communication connection with the data processing center, and the data processing center is used for performing data conversion operation on the information source data acquired by the data acquisition port to generate Ethernet data;
the optical fiber interface and the Ethernet interface are respectively in communication connection with the data processing center, and the Ethernet interface and the optical fiber interface are used for outputting the Ethernet data;
the Ethernet interface and the optical fiber interface are respectively connected with the POE switch through cables, and the Ethernet interface is further used for acquiring initial voltage provided by the POE switch;
the power module is connected with the Ethernet interface and used for adjusting the initial voltage to the rated voltage of the IP video encoder.
In order to expand the wiring range of the IP video encoder and improve the use flexibility, the most important point is how to solve the problem of power supply lines and networking lines of the IP video encoder. In the embodiment of the present invention, a POE switch provides power to a plurality of IP video encoders, and a power module in the plurality of IP video encoders performs filtering and rectification on the power voltage provided by the POE switch, so as to adjust the voltage of the power voltage to a voltage suitable for the IP video encoders.
Active Ethernet (POE) refers to a technology that can provide dc Power for some IP-based terminals (such as IP phones, wireless lan access points AP, network cameras, etc.) while transmitting data signals for such devices, without any modification to the existing Ethernet cat.5 wiring infrastructure.
The information source is connected with the IP video encoder through an HDMI cable, a USB cable and an audio cable.
In a specific implementation, the IP video encoder usually performs loop-out display on the acquired video data, and is mainly used to detect whether the acquired signal is normal or not and whether the acquired signal can be displayed locally. Therefore, after information source data can be acquired through the data acquisition port and transmitted to the data processing center, the data processing center performs data conversion operation on the information source data to generate Ethernet data, and then the Ethernet data is output through the optical fiber interface and the Ethernet interface.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating an internal structure of an IP video encoder according to an embodiment of the present invention.
In one example of the present invention, the source data includes video data, and the data processing center includes an expansion chip, a switching chip, and a plurality of IP encoding chips; the data conversion operation comprises a data compression operation and a data encoding operation;
the extension chip is in communication connection with the IP coding chips respectively and is used for sending the video data to the IP coding chips respectively;
the plurality of IP coding chips are respectively in communication connection with the exchange chip and are used for executing the data coding operation on the plurality of video data according to different coding modes to generate intermediate data; performing the data compression operation on the intermediate data to generate Ethernet data respectively corresponding to the plurality of video data;
the exchange chip is respectively in communication connection with the optical fiber interface and the Ethernet interface, and the exchange chip is used for receiving the Ethernet data and outputting the Ethernet data through the optical fiber interface and/or the Ethernet interface.
In order to increase the acquisition and processing capacity of the system video stream, different channels can be flexibly selected or channel backup can be carried out, and the processing efficiency of an IP video encoder is ensured. The data acquisition port is in communication connection with the plurality of IP coding chips respectively, after video data are acquired by the data acquisition port, the video data are sent to the plurality of IP coding chips respectively through the expansion chips, the plurality of IP coding chips perform data coding operation according to respective coding modes, intermediate data are generated, and then data compression operation is performed, so that Ethernet data corresponding to the plurality of video data are generated respectively.
It should be noted that the multiple IP coding chips mainly have differences in coding delay, for example, the IP coding chip 1 and the IP coding chip 2, where the coding mode may include h.264, h.265, or proprietary protocol coding, and the like, and the embodiment of the present invention is not limited thereto.
In another example of the present invention, the source data further includes USB data, audio data, and central control data;
the data processing center also comprises a USB hub, an audio I/O interface and a central control interface which are respectively connected with the plurality of IP coding chips;
the USB concentrator is used for receiving the USB data and respectively sending the USB data to the plurality of IP coding chips;
the audio I/O interface is used for receiving the audio data and respectively sending the audio data to the plurality of IP coding chips;
the central control interface is used for receiving the central control data and respectively sending the central control data to the plurality of IP coding chips; the central control data is used for controlling the working states of the plurality of IP coding chips.
In the embodiment of the present invention, the source data may include not only video data but also USB data, audio data, and central control data.
The USB data processing process needs to connect a USB interface of the mobile device to a USB hub, acquire the USB data through the USB hub and send the USB data to a plurality of IP coding chips, and the IP coding chips further code and compress the USB data to output expected data;
similarly, the audio data may be received through the audio I/O interface, and after the audio data is processed by the IP encoding chip, the generated processed data may be output through the audio I/O interface, or output through the ethernet interface or the optical fiber interface.
And in order to more flexibly control the working state of the IP coding chip, the working state of the IP coding chip can be controlled by receiving central control data through a central control interface and controlling the working state of the IP coding chip through the central control data.
Optionally, the IP encoding chip may be controlled by an infrared signal or by serial port communication, and therefore, the central control data may include infrared signal data, RS232 signal data, or RS485 signal data.
In another example of the present invention, the central control interface is further configured to control a preset information source to be powered on or powered off; the preset source is used for generating the source data.
In a specific implementation, in order to reduce unnecessary resource consumption of the IP video encoder, when the information source data needs to be processed, the on/off of the preset information source may be controlled through the central control interface, for example, the on/off of the information source data may be collected through the data collection port, so as to save resource consumption.
Further, the power module comprises a rectification module;
the rectification module is connected with the Ethernet interface;
the rectification module is used for performing filtering operation and rectification operation on the initial voltage according to a preset POE protocol to obtain a target voltage; the target voltage is a rated voltage of the IP video encoder.
In an alternative embodiment of the invention, the initial voltage retrieved from the ethernet interface is typically not the nominal voltage of the IP video encoder. Therefore, the power module is further provided with a rectifying module, the rectifying module is connected with the Ethernet interface, and when the Ethernet interface acquires the initial voltage sent by the POE switch, the rectifying module performs filtering operation and rectifying operation on the initial voltage according to a preset POE protocol so as to obtain the target voltage. Through the combination of the rectification module and the Ethernet interface, the technical purpose of supplying power by using a local area network or a switch of a switch unit is achieved, and compared with a traditional IP video encoder, the power supply line can be reduced, and the wiring is more flexible.
Optionally, the power supply module includes a rectification module, a power supply switching module and an external power supply module;
the power supply switching module is respectively connected with the rectifying module and the external power supply module;
the rectification module is connected with the Ethernet interface;
the rectification module is used for performing filtering operation and rectification operation on the initial voltage according to a preset POE protocol to obtain a target voltage; the target voltage is the rated voltage of the IP video encoder;
the external power supply module is used for receiving the voltage of a preset standard power supply; the preset standard power supply is a voltage source for providing rated voltage of the IP video encoder;
the power supply switching module is used for switching to the rectifying module to provide the target voltage for the IP video encoder when the external power supply module cannot provide the voltage of the preset standard power supply;
alternatively, the first and second electrodes may be,
when the rectifying module can not provide the target voltage for the IP video encoder, the voltage of a preset standard power supply provided by the external power supply module for the IP video encoder is switched to
In a specific implementation, the power supply module may include a rectification module, a power supply switching module and an external power supply module, and the power supply switching module is connected to the rectification module and the external power supply module respectively; after the Ethernet interface receives the initial voltage sent by the POE switch, the filtering operation and the rectifying operation are carried out on the initial voltage through the rectifying module according to a preset POE protocol to obtain a target voltage; meanwhile, in order to further ensure the power supply of the IP video encoder, the external power supply module can also provide rated voltage for the IP video encoder by acquiring the voltage of a preset standard power supply.
However, in the actual use process, the power supply may be interrupted due to some unexpected factors, for example, power failure due to power grid failure, and at this time, when the external power supply module or the rectifier module cannot provide the rated voltage, the external power supply module or the rectifier module may automatically switch to another power supply module through the power switching module, so as to ensure the power supply requirement of the IP video encoder, for example, when the external power supply module cannot provide power, the external power supply module switches to the rectifier module to supply power.
In another embodiment of the present invention, the POE switch is a gigabit switch, and the gigabit switch may adopt an electrical port switch with POE function.
Optionally, the cable connection between the ethernet interface and the POE switch is a network cable connection;
the optical fiber interface is connected with the POE switch in a cable connection mode through optical fibers.
Optionally, the ethernet interface may be an RJ45 interface.
In the embodiment of the invention, a video coding system is provided, which comprises an IP video encoder and a POE switch connected by a cable, wherein the IP video encoder collects source data by data acquisition disconnection, generates ethernet data after performing data conversion operation on the source data by a data processing center, and outputs the ethernet data through an optical fiber interface or an ethernet interface; simultaneously through being connected of POE switch and ethernet interface, acquire the initial voltage that the POE switch provided, will through power module initial voltage adjustment is IP video encoder's rated voltage, compares in current IP video encoder and has got rid of the restriction of power supply line, makes IP video encoder's wiring more nimble, need not to spend a large amount of manpower and materials to pay close attention to on-the-spot electric power system and walk the line, makes IP video encoder's network deployment and dilatation convenience increase, improves IP video encoder's use flexibility.
In the several embodiments provided in the present invention, it should be understood that the disclosed system may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A video coding system comprising an active ethernet POE switch and at least one internet protocol, IP, video encoder cabled to said POE switch;
the IP video encoder comprises a data acquisition port, a data processing center, a power supply module, an Ethernet interface and an optical fiber interface;
the data acquisition port is in communication connection with the data processing center, and the data processing center is used for performing data conversion operation on the information source data acquired by the data acquisition port to generate Ethernet data;
the optical fiber interface and the Ethernet interface are respectively in communication connection with the data processing center, and the Ethernet interface and the optical fiber interface are used for outputting the Ethernet data;
the Ethernet interface and the optical fiber interface are respectively connected with the POE switch through cables, and the Ethernet interface is further used for acquiring initial voltage provided by the POE switch;
the power module is connected with the Ethernet interface and used for adjusting the initial voltage to the rated voltage of the IP video encoder.
2. The video coding system of claim 1, wherein the source data comprises video data, and the data processing center comprises an expansion chip, a switch chip, and a plurality of IP coding chips; the data conversion operation comprises a data compression operation and a data encoding operation;
the extension chip is in communication connection with the IP coding chips respectively and is used for sending the video data to the IP coding chips respectively;
the plurality of IP coding chips are respectively in communication connection with the exchange chip and are used for executing the data coding operation on the plurality of video data according to different coding modes to generate intermediate data; performing the data compression operation on the intermediate data to generate Ethernet data respectively corresponding to the plurality of video data;
the exchange chip is respectively in communication connection with the optical fiber interface and the Ethernet interface, and the exchange chip is used for receiving the Ethernet data and outputting the Ethernet data through the optical fiber interface and/or the Ethernet interface.
3. The video encoding system of claim 2, wherein the source data further comprises USB data, audio data, and central control data;
the data processing center also comprises a USB hub, an audio I/O interface and a central control interface which are respectively connected with the plurality of IP coding chips;
the USB concentrator is used for receiving the USB data and respectively sending the USB data to the plurality of IP coding chips;
the audio I/O interface is used for receiving the audio data and respectively sending the audio data to the plurality of IP coding chips;
the central control interface is used for receiving the central control data and respectively sending the central control data to the plurality of IP coding chips; the central control data is used for controlling the working states of the plurality of IP coding chips.
4. The video coding system of claim 3, wherein the central control interface is further configured to control a preset source to be powered on or off; the preset source is used for generating the source data.
5. The video encoding system of claim 1, wherein the power module comprises a rectifier module;
the rectification module is connected with the Ethernet interface;
the rectification module is used for performing filtering operation and rectification operation on the initial voltage according to a preset POE protocol to obtain a target voltage; the target voltage is a rated voltage of the IP video encoder.
6. The video coding system of claim 1, wherein the power module comprises a rectification module, a power switching module, and an external power module;
the power supply switching module is respectively connected with the rectifying module and the external power supply module;
the rectification module is connected with the Ethernet interface;
the rectification module is used for performing filtering operation and rectification operation on the initial voltage according to a preset POE protocol to obtain a target voltage; the target voltage is the rated voltage of the IP video encoder;
the external power supply module is used for receiving the voltage of a preset standard power supply; the preset standard power supply is a voltage source for providing rated voltage of the IP video encoder;
the power supply switching module is used for switching to the rectifying module to provide the target voltage for the IP video encoder when the external power supply module cannot provide the voltage of the preset standard power supply;
alternatively, the first and second electrodes may be,
and when the rectifying module cannot provide the target voltage for the IP video encoder, switching to the external power supply module to provide the voltage of a preset standard power supply for the IP video encoder.
7. The video coding system of claim 1, wherein the POE switch is a gigabit switch.
8. The video coding system of claim 4, wherein the central control data comprises infrared signal data, RS232 signal data, or RS485 signal data.
9. The video coding system of claim 1, wherein the cable connection between the ethernet interface and the POE switch is a network cable connection;
the optical fiber interface is connected with the POE switch in a cable connection mode through optical fibers.
10. The video encoding system of claim 1, wherein the ethernet interface is an RJ45 interface.
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| CN202010801842.2A CN111787293A (en) | 2020-08-11 | 2020-08-11 | Video coding system |
| PCT/CN2020/141576 WO2022032973A1 (en) | 2020-08-11 | 2020-12-30 | Video encoding system |
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| WO2022032973A1 (en) * | 2020-08-11 | 2022-02-17 | 威创集团股份有限公司 | Video encoding system |
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| US20170187955A1 (en) * | 2015-12-29 | 2017-06-29 | VideoStitch Inc. | Omnidirectional camera with multiple processors and/or multiple sensors connected to each processor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022032973A1 (en) * | 2020-08-11 | 2022-02-17 | 威创集团股份有限公司 | Video encoding system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022032973A1 (en) | 2022-02-17 |
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