CN112073089A - Real-time voice call method based on medium-voltage carrier - Google Patents
Real-time voice call method based on medium-voltage carrier Download PDFInfo
- Publication number
- CN112073089A CN112073089A CN202010935921.2A CN202010935921A CN112073089A CN 112073089 A CN112073089 A CN 112073089A CN 202010935921 A CN202010935921 A CN 202010935921A CN 112073089 A CN112073089 A CN 112073089A
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- carrier
- machine
- palm
- voice call
- voice
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
Abstract
The invention discloses a real-time voice call method based on a medium-voltage carrier, which is realized by a palm machine 1, a palm machine 2, a network cable, a carrier machine 1, a carrier machine 2 and a 10kV power line, wherein a voice call request is sent by the palm machine 1, the voice call request signal sequentially passes through the carrier machine 1, the carrier machine 2 and the palm machine 2, and the palm machine 2 selects 'consent' or 'hang-up' to determine whether to carry out voice call.
Description
Technical Field
The invention relates to the field of carrier signals, in particular to a real-time voice call method based on medium-voltage carriers.
Background
The medium-voltage carrier communication technology is a new technology for data transmission by using carrier signals, and mainly uses a 10kV power line as a medium to communicate with the outside in remote areas lacking mobile phone signals and network signals. In the existing scheme for transmitting voice data through a medium-voltage carrier, voice data is recorded at first and then transmitted to opposite-end equipment for playing so as to transmit the voice data, and only unidirectional transmission can be performed, bidirectional transmission of voice cannot be performed, and real-time communication cannot be realized.
Disclosure of Invention
In order to solve the defects or shortcomings of the prior art, the invention aims to provide a real-time voice call method based on medium-voltage carrier waves, the method takes a 10kV power line as a medium, the voice data transmission delay is less than 1 second, the two-way transmission of voice data can be realized, the real-time call requirement is met, and the user experience is improved.
In order to achieve the purpose, the invention provides a real-time voice call method based on medium-voltage carrier, which uses a 10kV power line as a transmission channel to carry out voice real-time call in a place lacking mobile phone signals and network signals, and comprises the following specific working procedures:
step 1) a sending terminal palm machine 1 and a receiving terminal palm machine 2 respectively establish network connection with a carrier machine 1 and a carrier machine 2 device through network cables, and at the moment, the address of the carrier machine 2 is displayed in the palm machine 1;
step 2) clicking the address of the carrier machine 2 on the palm machine 1 to select 'voice call';
step 3) the palm computer 1 sends a voice call request command to the carrier machine 1, the carrier machine 1 sends the voice call request command to the carrier machine 2 through a 10kV power line, and the carrier machine 2 receives the voice call request command and forwards the voice call request command to the palm computer 2;
step 4), the palm machine 2 receives the voice call request command, the interface of the palm machine 2 displays an 'agreement' button and a 'hang-up' button, a user can select the button by himself, and if the voice call request command is received, the 'agreement' button is clicked, and the call is started; if the voice call request command is rejected, a hang-up button is clicked, and the voice call is ended.
The real-time voice call is bidirectional, after the call is started, the palm computer 1 sends voice data to the carrier computer 1, the carrier computer 1 sends the voice data to the carrier computer 2 through a 10kV power line, and the carrier computer 2 sends the received voice data to the palm computer 2 for real-time playing; the palm machine 2 can also send voice data to the carrier machine 2 at the same time, the carrier machine 2 sends the voice data to the carrier machine 1 through a 10kV power line, the carrier machine 1 forwards the voice data to the palm machine 1, the palm machine 1 plays the voice data in real time after receiving the voice data, and bidirectional transmission of the voice data is guaranteed.
The palm computer is used for recording, coding, compressing and playing voice, original audio data are sampled, quantized and coded, and then the voice data are compressed to 26kb/s by using a Speex compression algorithm, so that the transmission of the voice data is realized under the condition of not influencing medium-voltage carrier service interaction.
The palm computer adopts a multi-task mode, manages audio data by using the queue, and collects, compresses, encodes and sends the audio data to different tasks to be executed.
The carrier machine is provided with a digital signal interface and a carrier signal interface, receives voice data or a voice call request command sent by the palm machine through the digital signal interface, processes the voice data or the voice call request command into a carrier signal, couples the carrier signal to a 10kV power line through coupling equipment for transmission, and meets the transmission rate required by real-time voice call, wherein the physical transmission rate of the carrier signal on the 10kV power line is 100 kbps.
The carrier machine is provided with an Ethernet port, the connection with the palm machine is established through a network cable, and the transmission mode between the carrier machine and the palm machine is UDP transmission, so that the real-time performance of data transmission can be ensured.
The invention has the beneficial effects that: the 10kV power line is used as a transmission channel, the transmission rate of signals is 100kbps, the transmission delay is less than 1 second, the two-way transmission of voice data is realized, the real-time voice call requirement is met, and the experience of a user is improved.
Drawings
Fig. 1 is a block diagram illustrating a real-time voice call method based on a medium-voltage carrier according to the present invention.
Fig. 2 is a flowchart of a real-time voice call method based on a medium-voltage carrier according to the present invention.
Fig. 3 is a two-way call flow chart of the real-time voice call method based on medium-voltage carrier according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, a real-time voice call method based on medium-voltage carrier of the present invention includes: palm machine 1, palm machine 2, net twine, carrier 1, carrier 2 and 10kV power line.
As shown in fig. 2, the specific working flow of the present invention is as follows:
step 1) a sending terminal palm machine 1 and a receiving terminal palm machine 2 respectively establish network connection with a carrier machine 1 and a carrier machine 2 device through network cables, and at the moment, the address of the carrier machine 2 is displayed in the palm machine 1;
step 2) clicking the address of the carrier machine 2 on the palm machine 1 to select 'voice call';
step 3) the palm computer 1 sends a voice call request command to the carrier machine 1, the carrier machine 1 sends the voice call request command to the carrier machine 2 through a 10kV power line, and the carrier machine 2 receives the voice call request command and forwards the voice call request command to the palm computer 2;
step 4), the palm machine 2 receives the voice call request command, the interface of the palm machine 2 displays an 'agreement' button and a 'hang-up' button, a user can select the button by himself, and if the voice call request command is received, the 'agreement' button is clicked, and the call is started; if the voice call request command is rejected, a hang-up button is clicked, and the voice call is ended.
As shown in fig. 3, the real-time voice call is bidirectional, after the call is started, the palm computer 1 sends voice data to the carrier computer 1, the carrier computer 1 sends the voice data to the carrier computer 2 through the 10kV power line, and the carrier computer 2 sends the received voice data to the palm computer 2 for real-time playing; the palm machine 2 can also send voice data to the carrier machine 2 at the same time, the carrier machine 2 sends the voice data to the carrier machine 1 through a 10kV power line, the carrier machine 1 forwards the voice data to the palm machine 1, the palm machine 1 plays the voice data in real time after receiving the voice data, and bidirectional transmission of the voice data is guaranteed.
The palm computer is used for recording, coding, compressing and playing voice, original audio data are sampled, quantized and coded, and then the voice data are compressed to 26kb/s by using a Speex compression algorithm, so that the transmission of the voice data is realized under the condition of not influencing medium-voltage carrier service interaction.
The palm computer adopts a multi-task mode, manages audio data by using the queue, and collects, compresses, encodes and sends the audio data to different tasks to be executed.
The carrier machine is provided with a digital signal interface and a carrier signal interface, receives voice data or a voice call request command sent by the palm machine through the digital signal interface, processes the voice data or the voice call request command into a carrier signal, couples the carrier signal to a 10kV power line through coupling equipment for transmission, and meets the transmission rate required by real-time voice call, wherein the physical transmission rate of the carrier signal on the 10kV power line is 100 kbps.
The carrier machine is provided with an Ethernet port, the connection with the palm machine is established through a network cable, and the transmission mode between the carrier machine and the palm machine is UDP transmission, so that the real-time performance of data transmission can be ensured.
The above embodiments are illustrative of specific embodiments of the present invention, and are not restrictive of the present invention, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the present invention to obtain corresponding equivalent technical solutions, and therefore all equivalent technical solutions should be included in the scope of the present invention.
Claims (6)
1. A real-time voice call method based on medium-voltage carrier is characterized in that a 10kV power line is used as a transmission channel, real-time voice call is carried out in a place lacking mobile phone signals and network signals, and the specific working flow is as follows:
step 1) a sending terminal palm machine 1 and a receiving terminal palm machine 2 respectively establish network connection with a carrier machine 1 and a carrier machine 2 device through network cables, and at the moment, the address of the carrier machine 2 is displayed in the palm machine 1;
step 2) clicking the address of the carrier machine 2 on the palm machine 1 to select 'voice call';
step 3) the palm computer 1 sends a voice call request command to the carrier machine 1, the carrier machine 1 sends the voice call request command to the carrier machine 2 through a 10kV power line, and the carrier machine 2 receives the voice call request command and forwards the voice call request command to the palm computer 2;
step 4), the palm machine 2 receives the voice call request command, the interface of the palm machine 2 displays an 'agreement' button and a 'hang-up' button, a user can select the button by himself, and if the voice call request command is received, the 'agreement' button is clicked, and the call is started; if the voice call request command is rejected, a hang-up button is clicked, and the voice call is ended.
2. The real-time voice call method based on the medium voltage carrier as claimed in claim 1, wherein the real-time voice call is bidirectional, after the call is started, the palm computer 1 sends the voice data to the carrier computer 1, the carrier computer 1 sends the voice data to the carrier computer 2 through the 10kV power line, and the carrier computer 2 sends the received voice data to the palm computer 2 for real-time playing; the palm machine 2 can also send voice data to the carrier machine 2 at the same time, the carrier machine 2 sends the voice data to the carrier machine 1 through a 10kV power line, the carrier machine 1 forwards the voice data to the palm machine 1, the palm machine 1 plays the voice data in real time after receiving the voice data, and bidirectional transmission of the voice data is guaranteed.
3. The method as claimed in claim 1, wherein the palm computer is configured to record, encode, compress, and play voice, and compress the voice data to 26kb/s by using Speex compression algorithm after sampling, quantizing, and encoding the original audio data, so as to realize transmission of the voice data without affecting the medium voltage carrier service interaction.
4. The method as claimed in claim 3, wherein the palm computer uses a multitasking mode, manages the audio data by using the queue, and collects, compresses, encodes and transmits the audio data to different tasks to be executed.
5. The method according to claim 1, wherein the carrier has a digital signal interface and a carrier signal interface, receives the voice data or the voice call request command from the palm device through the digital signal interface, processes the voice data or the voice call request command into a carrier signal, couples the carrier signal to the 10kV power line through the coupling device for transmission, and has a physical transmission rate of 100kbps on the 10kV power line, which satisfies the transmission rate required by the real-time voice call.
6. The method as claimed in claim 5, wherein the carrier is equipped with an ethernet port, and establishes a connection with the palm computer through a network cable, and the transmission mode between the carrier and the palm computer is UDP transmission, so as to ensure real-time performance of data transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010935921.2A CN112073089A (en) | 2020-09-08 | 2020-09-08 | Real-time voice call method based on medium-voltage carrier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010935921.2A CN112073089A (en) | 2020-09-08 | 2020-09-08 | Real-time voice call method based on medium-voltage carrier |
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| CN112073089A true CN112073089A (en) | 2020-12-11 |
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| CN202010935921.2A Withdrawn CN112073089A (en) | 2020-09-08 | 2020-09-08 | Real-time voice call method based on medium-voltage carrier |
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| US20080037517A1 (en) * | 2006-07-07 | 2008-02-14 | Avaya Canada Corp. | Device for and method of terminating a voip call |
| CN102696224A (en) * | 2010-01-05 | 2012-09-26 | Lg电子株式会社 | Method for connecting video communication to other device, video communication apparatus and display apparatus thereof |
| CN103442153A (en) * | 2013-09-17 | 2013-12-11 | 黎辉 | Indoor audio calling system using power line |
| CN205160722U (en) * | 2015-11-30 | 2016-04-13 | 常州迅德网络科技有限公司 | Novel medical calling intercom system |
| CN105551223A (en) * | 2016-01-29 | 2016-05-04 | 青岛鼎信通讯股份有限公司 | Concentrated meter-reading terminal uplink communication system based on medium-voltage carrier and wireless communication |
| CN109450514A (en) * | 2018-11-15 | 2019-03-08 | 国网浙江宁波市鄞州区供电有限公司 | A kind of mobile communication relay based on low pressure carrier wave |
-
2020
- 2020-09-08 CN CN202010935921.2A patent/CN112073089A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080037517A1 (en) * | 2006-07-07 | 2008-02-14 | Avaya Canada Corp. | Device for and method of terminating a voip call |
| CN102696224A (en) * | 2010-01-05 | 2012-09-26 | Lg电子株式会社 | Method for connecting video communication to other device, video communication apparatus and display apparatus thereof |
| CN103442153A (en) * | 2013-09-17 | 2013-12-11 | 黎辉 | Indoor audio calling system using power line |
| CN205160722U (en) * | 2015-11-30 | 2016-04-13 | 常州迅德网络科技有限公司 | Novel medical calling intercom system |
| CN105551223A (en) * | 2016-01-29 | 2016-05-04 | 青岛鼎信通讯股份有限公司 | Concentrated meter-reading terminal uplink communication system based on medium-voltage carrier and wireless communication |
| CN109450514A (en) * | 2018-11-15 | 2019-03-08 | 国网浙江宁波市鄞州区供电有限公司 | A kind of mobile communication relay based on low pressure carrier wave |
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Application publication date: 20201211 |