CN106488309B - Video resolution conversion method and the network equipment - Google Patents
Video resolution conversion method and the network equipment Download PDFInfo
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- CN106488309B CN106488309B CN201510548027.9A CN201510548027A CN106488309B CN 106488309 B CN106488309 B CN 106488309B CN 201510548027 A CN201510548027 A CN 201510548027A CN 106488309 B CN106488309 B CN 106488309B
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- signal strength
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 description 10
- 238000012417 linear regression Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
A kind of video resolution conversion method, the method comprising the steps of: the first threshold value, the second threshold value and third threshold value of received signal strength indication value is arranged, wherein first threshold value is greater than second threshold value, and second threshold value is greater than the third threshold value；Detect the operating mode of Wi-Fi device；Calculate the signal strength indication value that user terminal in current environment receives Wi-Fi；Compare received signal strength indication value and first threshold value, the size of second threshold value and the third threshold value；The resolution of the video to be transmitted is adjusted according to the operating mode for comparing the result after received signal strength indication value and the threshold value and Wi-Fi device；The video to be transmitted adjusted is sent to the user terminal.The present invention also provides a kind of video resolution converting systems.The present invention, which can allow user to watch video, better experience.
Description
Technical field
The present invention relates to video technique fields, more particularly, to a kind of video resolution conversion method and system.
Background technique
The radio throughput of cable gateway (cable gateway) or Media Gateway (media gateway) at present
(wireless throughput) is often influenced by environment, therefore Institute of Electrical and Electric Engineers (Institute
Of Electrical and Electronics Engineers, IEEE) standard need to be constantly updated to provide more stable data
Transmission standard.But among family, because interfering more with frequency/face frequency, if micro-wave oven, electromagnetic oven etc., wireless signal often can not
Continual and steady output leverages user in the experience watched on audio-visual video.
Summary of the invention
In view of the foregoing, it is necessary to a kind of video resolution conversion method be provided, can allow user on viewing video
There is better experience.
In view of the foregoing, it there is a need to provide a kind of video resolution converting system, user can be allowed in viewing video
On have better experience.
The video resolution conversion method that embodiment of the present invention provides is comprising steps of setting received signal strength indication value
The first threshold value, the second threshold value and third threshold value, wherein first threshold value be greater than second threshold value, it is described
Second threshold value is greater than the third threshold value；Detect the operating mode of Wi-Fi device；User terminal in current environment is calculated to connect
Receive the signal strength indication value of Wi-Fi；Compare received signal strength indication value and first threshold value, second thresholding
The size of value and the third threshold value；According to comparing the result after received signal strength indication value and the threshold value and Wi-
The operating mode of Fi device adjusts the resolution of the video to be transmitted；The video to be transmitted adjusted is sent to institute
State user terminal.
Video resolution converting system in embodiment of the present invention includes setup module, detecting module, computing module, sentences
Disconnected module, adjustment module, delivery module.Setup module is used to be arranged the first threshold value of received signal strength indication value, second
Threshold value and third threshold value, wherein first threshold value is greater than second threshold value, second threshold value is greater than institute
State third threshold value.Detecting module is used to detect the operating mode of Wi-Fi device.Computing module is used for calculating in current environment
Family terminal receives the signal strength indication value of Wi-Fi.Judgment module is for comparing received signal strength indication value and described the
The size of one threshold value, second threshold value and the third threshold value.Adjustment module is used for strong according to reception signal is compared
The operating mode of result and Wi-Fi device after degree indicated value and the threshold value adjusts the parsing of the video to be transmitted
Degree.Delivery module is used to the video to be transmitted adjusted being sent to the user terminal.
Compared to the prior art, the video resolution conversion method and video resolution converting system, being capable of basis
Monitoring to the same frequency of current environment/face frequency interference, can in real time convert the resolution of video, user can be allowed to see
Seeing on video has better experience.
Detailed description of the invention
Fig. 1 is the functional block diagram of video resolution converting system preferred embodiment of the present invention.
Fig. 2 be 802.11n standard of the present invention decode-regulating scheme and corresponding bit rate figure.
Fig. 3 is the received signal strength indication value and message transmission rate surveyed the present invention is based on 802.11n standard
Linear regression graph.
The flow chart of Fig. 4 video resolution conversion method preferred embodiment of the present invention.
Main element symbol description
| The network equipment | 2 |
| User terminal | 4 |
| Video resolution converting system | 10 |
| Memory | 20 |
| Processor | 30 |
| Setup module | 100 |
| Detecting module | 200 |
| Computing module | 300 |
| Judgment module | 400 |
| Adjust module | 500 |
| Delivery module | 600 |
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
It refering to fig. 1, is the functional block diagram of 2 better embodiment of inventive network equipment.It include view in the network equipment 2
Frequency resolution converting system 10, memory 20 and processor 30.In the present embodiment, the network equipment 2 can be gateway, modulation
The equipment such as demodulator are connected to one or more user terminals 4 in a wired or wireless fashion.Video resolution converting system 10 is used
In the resolution for 4 converting video of user terminal.
The video resolution converting system 10 includes setup module 100, detecting module 200, computing module 300, judgement
Module 400, adjustment module 500 and delivery module 600.The module is configured to be performed by one or more processors, with complete
At the present invention.In the present embodiment, the module is executed by processor 30.The so-called module of the present invention is to complete a specific function
The computer program code segments of energy.Memory 20 is for storing the data such as the program code of video resolution converting system 10.
The setup module 100 is used to be arranged the first threshold value of received signal strength indication value, the second threshold value and the
Three threshold values, wherein first threshold value is greater than second threshold value, second threshold value is greater than the third thresholding
Value.In the present embodiment, first threshold value is -50 decibels above milliwatts (dBm), and second threshold value is -70dBm, institute
Stating third threshold value is -78dBm.
The detecting module 200 is used to detect the operating mode of Wi-Fi device.In the present embodiment, the detecting
Wi-Fi device operating mode includes 802.11ac, 802.11n and 802.11g and its corresponding decode-regulating scheme.It is described
The decode-regulating scheme of detecting corresponds at least the first preset value, the second preset value and third preset value.Referring to Fig.2, in this reality
It applies in mode, the first preset value corresponding modulating decoding scheme number 5, modulation type is 64 phase quadrature amplitude modulation (64-
Quadrature Amplitude Modulation, 64-QAM), the second preset value corresponding modulating decoding scheme number 3,
Its modulation type is 16 phase quadrature amplitude modulations (16-Quadrature Amplitude Modulation, 16-QAM), described
Third preset value corresponding modulating decoding scheme number 1, modulation type are quadrature phase shift keying (Quadrature Phase
Shift Keying,QPSK).It generally can only achieve theoretical value by surveying available actual message transmission rate
70%.Such as shown in fig.2, the Wi-Fi device if it is 802.11n standard works in decode-regulating Protocol Numbers 7,40,000,000
When hertz (Mega Hertz, MHz) channel width, 400 nanoseconds of (nanosecond, ns) G1, theoretical maximum data
Transmission rate is 150 megabits per second (Million bits per second, Mbps), but according to its actual number of actual measurement
It is 150*0.7=105Mbps according to transmission rate.
The computing module 300 is used to calculate the signal strength indication value that user terminal in current environment receives Wi-Fi,
Wherein received signal strength indication value (Received Signal Strength Indication, RSSI)=transmission power
(Txpower)+antenna gain (Antenna Gain)-path loss (Path Loss).It can be received signal according to actual measurement
The linear regression graph of strength indicator value and message transmission rate, refering to Fig. 3.
The judgment module 400 is for comparing received signal strength indication value and first threshold value, second described
The size of limit value and the third threshold value.
The adjustment module 500 be used for according to compare the result after received signal strength indication value and the threshold value and
The operating mode of Wi-Fi device adjusts the resolution of the video to be transmitted.In the present embodiment, the adjustment module
500 for being greater than first threshold value when the received signal strength indication value, and detects the current of the Wi-Fi device
When the decode-regulating Protocol Numbers of operating mode are greater than the first preset value, the resolution of the video to be transmitted is adjusted to super
Clearly；When the received signal strength indication value is greater than second threshold value, and the work at present of the Wi-Fi device is detected
When the decode-regulating Protocol Numbers of mode are greater than the second preset value, the resolution of the video to be transmitted is adjusted to high definition；
When the received signal strength indication value is greater than the third threshold value, and the work at present mould of the Wi-Fi device is detected
When the decode-regulating Protocol Numbers of formula are greater than third preset value, the resolution of the video to be transmitted is adjusted to SD.
The adjustment module 500 is also used to according to the current of the received signal strength indication value and the Wi-Fi device
Smaller value in the decode-regulating Protocol Numbers of operating mode adjusts the resolution of the video to be transmitted.For example, working as institute
Received signal strength indication value is stated greater than first threshold value, but detect the current operation mode of the Wi-Fi device
When the decode-regulating Protocol Numbers are less than or equal to the first preset value, then according to the current operation mode of the Wi-Fi device
The decode-regulating Protocol Numbers corresponding to the adjustment video to be transmitted resolution.
The delivery module 600 is used to the video to be transmitted adjusted being sent to the user terminal.
The delivery module 600 is also used to be less than or equal to the third threshold value when the received signal strength indication value
When, Xiang Suoshu user terminal feeds back the information that can not play video.
It is the flow chart of frequency resolution conversion method preferred embodiment of the present invention refering to Fig. 4.The video resolution conversion
Method is applied to video resolution converting system 10, and the program code stored in memory 20 is executed by processor 30 and is realized.
The first threshold value, the second threshold value and third threshold value of received signal strength indication value is arranged in step S10,
Described in the first threshold value be greater than second threshold value, second threshold value be greater than the third threshold value.In this implementation
In mode, first threshold value is -50dBm, and second threshold value is -70dBm, and the third threshold value is -78dBm.
Step S11 detects the operating mode of Wi-Fi device.In the present embodiment, the Wi-Fi device work of the detecting
Operation mode includes 802.11ac, 802.11n and 802.11g and its corresponding decode-regulating scheme.The modulation of the detecting
Decoding scheme corresponds at least the first preset value, the second preset value and third preset value.Referring to Fig.2, in the present embodiment, institute
State the first preset value corresponding modulating decoding scheme number 5, modulation type 64-QAM, the second preset value corresponding modulating solution
Code Protocol Numbers 3, modulation type 16-QAM, the third preset value corresponding modulating decoding scheme number 1, modulation type
For QPSK.It generally can only achieve the 70% of theoretical value by surveying available actual message transmission rate.Such as refering to Fig. 2
It is shown, it works if it is the Wi-Fi device of 802.11n standard in decode-regulating Protocol Numbers 7,40MHz channel width, 400ns
When G1, theoretical maximum data transfer rate is 150Mbps, but is according to its actual message transmission rate is surveyed
150*0.7=105Mbps.
Step S12 calculates the signal strength indication value that user terminal in current environment receives Wi-Fi, wherein RSSI=
Txpower+Antenna Gain-Path Loss.It can be received signal strength indication value and data transmission speed according to actual measurement
The linear regression graph of rate, refering to Fig. 3.
Step S13 compares received signal strength indication value and first threshold value, second threshold value and described the
The size of three threshold values.
Step S14, according to the work for comparing received signal strength indication value with result and Wi-Fi device after the threshold value
Operation mode adjusts the resolution of the video to be transmitted.In the present embodiment, the adjustment module 500 is used to connect when described
Receive signal strength indication value be greater than first threshold value, and detect the Wi-Fi device current operation mode it is described
When decode-regulating Protocol Numbers are greater than the first preset value, the resolution of the video to be transmitted is adjusted to super clear；When the reception
Signal strength indication value is greater than second threshold value, and detects the tune of the current operation mode of the Wi-Fi device
When decoding scheme processed number is greater than the second preset value, the resolution of the video to be transmitted is adjusted to high definition；When the reception is believed
Number strength indicator value is greater than the third threshold value, and detects the modulation of the current operation mode of the Wi-Fi device
When decoding scheme number is greater than third preset value, the resolution of the video to be transmitted is adjusted to SD.
According to the decode-regulating of the received signal strength indication value and the current operation mode of the Wi-Fi device
Smaller value in Protocol Numbers adjusts the resolution of the video to be transmitted.For example, when the received signal strength indication value is big
In first threshold value, but the decode-regulating Protocol Numbers for detecting the current operation mode of the Wi-Fi device are small
When the first preset value, then according to the decode-regulating Protocol Numbers of the current operation mode of the Wi-Fi device
The resolution of the corresponding adjustment video to be transmitted.
The video to be transmitted adjusted is sent to the user terminal by step S15.
When the received signal strength indication value is less than or equal to the third threshold value, Xiang Suoshu user terminal feeds back nothing
The information of method broadcasting video.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to preferred embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that, it can modify to technical solution of the present invention
Or equivalent replacement, without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. a kind of video resolution conversion method, which is characterized in that the method comprising the steps of:
The first threshold value, the second threshold value and third threshold value of received signal strength indication value are set, wherein described first
Limit value is greater than second threshold value, and second threshold value is greater than the third threshold value；
The operating mode of Wi-Fi device is detected, the operating mode of the Wi-Fi device includes the first operating mode, the second work
Mode and third operating mode and its corresponding decode-regulating Protocol Numbers, the decode-regulating Protocol Numbers correspond to
At least the first preset value, the second preset value and third preset value；
Calculate the signal strength indication value that user terminal in current environment receives Wi-Fi；
Compare received signal strength indication value and first threshold value, second threshold value and the third threshold value；
It is adjusted according to the operating mode for comparing received signal strength indication value and result and Wi-Fi device after the threshold value
The resolution of video to be transmitted, wherein
When the received signal strength indication value is greater than first threshold value, and the current work of the Wi-Fi device is detected
When the decode-regulating Protocol Numbers of operation mode are greater than the first preset value, the resolution of the video to be transmitted is adjusted to first
Resolution；
When the received signal strength indication value is greater than second threshold value, and the current work of the Wi-Fi device is detected
When the decode-regulating Protocol Numbers of operation mode are greater than the second preset value, the resolution of the video to be transmitted is adjusted to second
Resolution；
When the received signal strength indication value is greater than the third threshold value, and the current work of the Wi-Fi device is detected
When the decode-regulating Protocol Numbers of operation mode are greater than third preset value, the resolution of the video to be transmitted is adjusted to third
Resolution；And
First resolution is higher than second resolution, and second resolution is higher than the third resolution；And
The video to be transmitted adjusted is sent to the user terminal.
2. video resolution conversion method as described in claim 1, which is characterized in that first operating mode is
802.11ac, second operating mode are 802.11n and the third operating mode is 802.11g.
3. video resolution conversion method as described in claim 1, which is characterized in that first resolution is super clear, institute
State that the second resolution is high definition and the third resolution is SD.
4. video resolution conversion method as described in claim 1, which is characterized in that this method further comprises the steps of:
According to the decode-regulating scheme of the received signal strength indication value and the current operation mode of the Wi-Fi device
Smaller value in number adjusts the resolution of the video to be transmitted.
5. video resolution conversion method as described in claim 1, which is characterized in that when the received signal strength indication value
When less than or equal to the third threshold value, Xiang Suoshu user terminal feeds back the information that can not play video.
6. a kind of network equipment, the network equipment is wirelessly connected to user terminal, which is characterized in that the network is set
It is standby to include:
Setup module, for the first threshold value, the second threshold value and third threshold value of received signal strength indication value to be arranged,
Described in the first threshold value be greater than second threshold value, second threshold value be greater than the third threshold value；
Detecting module, for detecting the operating mode of Wi-Fi device, the operating mode of the Wi-Fi device includes the first work
Mode, the second operating mode and third operating mode and its corresponding decode-regulating Protocol Numbers, the decode-regulating side
Case number corresponds at least the first preset value, the second preset value and third preset value；
Computing module receives the signal strength indication value of Wi-Fi for calculating user terminal in current environment；
Judgment module, for comparing received signal strength indication value and first threshold value, second threshold value and described
Third threshold value；
Module is adjusted, for according to comparing the result after received signal strength indication value and the threshold value and Wi-Fi device
Operating mode adjusts the resolution of video to be transmitted, wherein
When the received signal strength indication value is greater than first threshold value, and the current work of the Wi-Fi device is detected
When the decode-regulating Protocol Numbers of operation mode are greater than the first preset value, the resolution of the video to be transmitted is adjusted to first
Resolution；
When the received signal strength indication value is greater than second threshold value, and the current work of the Wi-Fi device is detected
When the decode-regulating Protocol Numbers of operation mode are greater than the second preset value, the resolution of the video to be transmitted is adjusted to second
Resolution；
When the received signal strength indication value is greater than the third threshold value, and the current work of the Wi-Fi device is detected
When the decode-regulating Protocol Numbers of operation mode are greater than third preset value, the resolution of the video to be transmitted is adjusted to third
Resolution；And
First resolution is higher than second resolution, and second resolution is higher than the third resolution；And
Delivery module, for the video to be transmitted adjusted to be sent to the user terminal.
7. the network equipment as claimed in claim 6, which is characterized in that first operating mode is 802.11ac, described the
Two operating modes are 802.11n and the third operating mode is 802.11g.
8. the network equipment as claimed in claim 6, which is characterized in that first resolution is super clear, second parsing
Degree is high definition and the third resolution is SD.
9. the network equipment as claimed in claim 6, which is characterized in that the adjustment module is also used to according to the reception signal
Smaller value in the decode-regulating Protocol Numbers of the current operation mode of strength indicator value and the Wi-Fi device adjusts institute
State the resolution of video to be transmitted.
10. the network equipment as claimed in claim 6, which is characterized in that the delivery module is also used to when the reception signal
When strength indicator value is less than or equal to the third threshold value, Xiang Suoshu user terminal feeds back the information that can not play video.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548027.9A CN106488309B (en) | 2015-08-31 | 2015-08-31 | Video resolution conversion method and the network equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548027.9A CN106488309B (en) | 2015-08-31 | 2015-08-31 | Video resolution conversion method and the network equipment |
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| Publication Number | Publication Date |
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| CN106488309A CN106488309A (en) | 2017-03-08 |
| CN106488309B true CN106488309B (en) | 2019-07-23 |
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| CN102811367A (en) * | 2011-05-31 | 2012-12-05 | 美国博通公司 | Adaptive video encoding based on predicted wireless channel conditions |
| CN103326801A (en) * | 2012-03-23 | 2013-09-25 | 联想(北京)有限公司 | Method and system for controlling on-line information playing and mobile terminal |
| CN103999357A (en) * | 2011-10-24 | 2014-08-20 | 罗伯科技公司 | Method of displaying a digital signal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9854208B2 (en) * | 2013-12-29 | 2017-12-26 | Qognify Ltd. | System and method for detecting an object of interest |
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2015
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|---|---|---|---|---|
| CN101588595A (en) * | 2009-07-07 | 2009-11-25 | 董志 | Method for dynamically regulating data transfer rate in wireless application service system |
| CN102811367A (en) * | 2011-05-31 | 2012-12-05 | 美国博通公司 | Adaptive video encoding based on predicted wireless channel conditions |
| CN103999357A (en) * | 2011-10-24 | 2014-08-20 | 罗伯科技公司 | Method of displaying a digital signal |
| CN103326801A (en) * | 2012-03-23 | 2013-09-25 | 联想(北京)有限公司 | Method and system for controlling on-line information playing and mobile terminal |
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