CN209418149U - Satellite channel based on speech processes obtains system - Google Patents
Satellite channel based on speech processes obtains system Download PDFInfo
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- CN209418149U CN209418149U CN201822002997.0U CN201822002997U CN209418149U CN 209418149 U CN209418149 U CN 209418149U CN 201822002997 U CN201822002997 U CN 201822002997U CN 209418149 U CN209418149 U CN 209418149U
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Abstract
It the utility model relates to satellite intercommunication technical field, discloses a kind of satellite channel based on speech processes and obtains system, to solve the problems, such as that traditional talk back equipment is inconvenient for use, channel resource waste.Including voice acquisition module, voice gateways and the console sent for satellite channel acquisition and voice, wherein, voice gateways include the first speech chip and the second speech chip, first speech chip includes speech buffer storage circuit, voice identification circuit and PTT control circuit, and the second speech chip includes analog to digital conversion circuit, D/A converting circuit and filter circuit；Filter circuit is connect with voice acquisition module, analog to digital conversion circuit respectively, analog to digital conversion circuit and speech buffer storage circuit connection, speech buffer storage circuit is connect with voice identification circuit, voice identification circuit is connect with D/A converting circuit, PTT control circuit respectively, and console is connect with D/A converting circuit, PTT control circuit respectively.The utility model is suitable for satellite talk back equipment.
Description
Technical field
The utility model relates to satellite intercommunication technical fields, in particular to the satellite channel based on speech processes obtains system
System.
Background technique
PTT (Push-to-Talk) is a kind of control button, means " push to speak ", it is believed that PTT is exactly one
VOX (sound control switch).In voice dialogue occasion, when to be spoken, need to be manually pressed by the PTT (Push- of speech ciphering equipment
Channel could be switched to this equipment, voice signal is made to be sent to another speech ciphering equipment by to-Talk) control button.Such as intercommunication
Machine intercommunication, the transmission of wechat voice etc..
In satellite communications data field, voice data is more common transmission data, and current most of talk back equipments are all
It is to provide PTT signal by the way of manual key, foot-operated key, to obtain satellite communication channel, voice data is based on this again
Channel is transmitted.Though such method is widely applied, there is also some problems.Such as speech all needs to use hand every time
Dynamic key or foot-operated key, using trouble, especially in the conference system based on satellite communication, due to needing frequently to speak,
It then needs frequently to be manually operated, use is extremely inconvenient.
The drawbacks of to solve manual operation, some equipment are using predistribution satellite communication channel, i.e. talk back equipment one at present
A certain channel is directly occupied, voice data transmission is used for.Although such methods improve the physical examination effect of user, there is noises
The case where being mixed into also results in satellite channel resource and largely wastes.
Utility model content
Technical problem to be solved by the utility model is: a kind of satellite channel acquisition system based on speech processes is provided,
To solve the problems, such as that traditional talk back equipment is inconvenient for use, channel resource waste.
To solve the above problems, the technical solution adopted in the utility model is: the satellite channel based on speech processes obtains
System, including voice acquisition module, voice gateways and the console sent for satellite channel acquisition and voice, the voice
Gateway includes the first speech chip and the second speech chip, and first speech chip includes speech buffer storage circuit, voice identification
Circuit and PTT control circuit, second speech chip include analog to digital conversion circuit, D/A converting circuit and filter circuit；
The filter circuit is connect with the voice acquisition module, analog to digital conversion circuit respectively, analog-digital conversion circuit as described
With the speech buffer storage circuit connection, the speech buffer storage circuit is connect with the voice identification circuit, the voice identification electricity
Road is connect with the D/A converting circuit, PTT control circuit respectively, the console respectively with the D/A converting circuit, PTT
Control circuit connection.
Further, the PTT control circuit can be connect by USB line with the console.
Further, first speech chip can select STM32F407ZGT6 chip.
Further, second speech chip can select WM8978 chip.
The beneficial effects of the utility model are: when judging current speech is voice, since the utility model can pass through
First speech chip sends PTT signal to console, therefore is that can no longer carry out manual key operation in satellite intercommunication；And it uses
When family is kept silence, the utility model will not occupy communication channel resources, and then can concede channel resource, make for other users
With.The problems such as to solve traditional talk back equipment inconvenient for use, channel resource waste.
Detailed description of the invention
Fig. 1 is structural block diagram of the invention.
Specific embodiment
The utility model is illustrated below by drawings and examples.It should be noted that as described below " connects
Connect " it is electrical connection.
The utility model discloses a kind of, and the satellite channel based on speech processes obtains system, as shown in Figure 1, including voice
Acquisition module, voice gateways and console, in which: institute's voice gateway includes the first speech chip and the second speech chip,
First speech chip includes speech buffer storage circuit, voice identification circuit and PTT control circuit, the second speech chip packet
Include analog to digital conversion circuit, D/A converting circuit and filter circuit；The filter circuit respectively with the voice acquisition module, modulus
Conversion circuit connection, analog-digital conversion circuit as described and the speech buffer storage circuit connection, the speech buffer storage circuit and the people
The connection of sound identification circuit, the voice identification circuit are connect with the D/A converting circuit, PTT control circuit respectively, the control
Platform processed is connect with the D/A converting circuit, PTT control circuit respectively.
The function of system components is as follows:
Voice acquisition module for acquiring voice signal, acquisition mode can be microphone acquisition can also with when audio it is defeated
Enter.
First speech chip is the core for being the utility model, is mainly used to handle digital speech number in the present invention
According to and make corresponding control operation.Specifically, speech buffer storage circuit therein for realizing the first speech chip voice
Caching function, voice identification function of the voice identification circuit therein for realizing the first speech chip, PTT control electricity therein
Road for realizing the first speech chip PTT signal sending function.When practice, the first speech chip can be used meaning method and partly lead
The STM32F407ZGT6 chip of body (ST) company, there is 193KB internal SRAM, can be used for caching at least 3 seconds voice data.
Second speech chip is mainly used to handle the collected voice signal of voice acquisition module in the present invention.Tool
For body, for realizing the filter function of the second speech chip, analog to digital conversion circuit therein is used for filter circuit therein
Realize analog-to-digital conversion (ADC) operation of the second speech chip, D/A converting circuit therein is for realizing the second speech chip
Digital-to-analogue conversion (DAC) operation.When practice, WM8978 chip is can be used in the second speech chip, the chip be a low-power consumption,
The stereo multimedia digital signal coder of high quality, main function are that voice data is carried out DAC and ADC operation,
It is mainly used in all kinds of portable devices.There are the preposition amplification and loudspeaker, earphone and difference of stereo difference microphone in inside
Divide, the driving of three-dimensional sound ray output, being directly inserted into microphone or earphone can use.It include the automatic of mixed signal
Level controls (ALC) and digital filter function, can effectively avoid signal it is excessive caused by damage and reduction wind noise.
Console is usually PC host, after the PTT signal for receiving the transmission of the first speech chip, is obtained for satellite channel
It takes and is sent with voice.
A kind of working principle of the utility model is as follows:
Firstly, acquiring current speech by voice acquisition module, and the second speech chip is sent by collected voice
Carry out speech processes；
Then, the second speech chip is finally converted to number by filtering, amplification, coding, ALC (auto level control)
Signal is input to the first speech chip；
Later, the first speech chip constantly receives the speech digit amount that the second speech chip is sent, and caches 1000ms, leads to
It crosses and judges the characteristics such as cached volume, the frequency of voice (digital signal), these comprehensive characteristics, when judging that voice data is
It is no be mankind's normal voice and non-interference sound when, the second speech chip is sent by I2S agreement by the voice data；Work as judgement
When being out non-speech audio, stop sending the second speech chip for the voice data.
Meanwhile when the first speech chip is judged really to be the voice and non-interference sound of people, the utility model can also pass through
PTT circuit issues constant PTT signal, with acquisition of communication channels resource；When judge inhuman voice input more than 2s (adjustable),
Stop output PTT signal.In the present invention, PTT signal can be simulated with the space bar (Spaceboard) of USB keyboard,
That is the first speech chip can not only handle voice data but also as a USB keyboard, when PTT signal to be issued, to master
Machine (console) issues space signal, and host realizes voice letter according to communication channel resources are attempted to obtain after receiving space signal
Number transmission, thus instead of traditional manual key PTT function.
Claims (4)
1. satellite channel based on speech processes obtains system, which is characterized in that including voice acquisition module, voice gateways and
It is obtained for satellite channel and the console of voice transmission, institute's voice gateway includes the first speech chip and the second voice core
Piece, first speech chip include speech buffer storage circuit, voice identification circuit and PTT control circuit, the second voice core
Piece includes analog to digital conversion circuit, D/A converting circuit and filter circuit；
The filter circuit is connect with the voice acquisition module, analog to digital conversion circuit respectively, analog-digital conversion circuit as described and institute
The connection of predicate sound buffer circuit, the speech buffer storage circuit are connect with the voice identification circuit, the voice identification circuit point
It is not connect with the D/A converting circuit, PTT control circuit, the console is controlled with the D/A converting circuit, PTT respectively
Circuit connection.
2. the satellite channel based on speech processes obtains system as described in claim 1, which is characterized in that the PTT control
Circuit is connect by USB line with the console.
3. the satellite channel based on speech processes obtains system as described in claim 1, which is characterized in that first voice
Chip is STM32F407ZGT6 chip.
4. the satellite channel based on speech processes obtains system as described in claim 1, which is characterized in that second voice
Chip is WM8978 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822002997.0U CN209418149U (en) | 2018-11-30 | 2018-11-30 | Satellite channel based on speech processes obtains system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822002997.0U CN209418149U (en) | 2018-11-30 | 2018-11-30 | Satellite channel based on speech processes obtains system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209418149U true CN209418149U (en) | 2019-09-20 |
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ID=67936058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822002997.0U Active CN209418149U (en) | 2018-11-30 | 2018-11-30 | Satellite channel based on speech processes obtains system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209418149U (en) |
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2018
- 2018-11-30 CN CN201822002997.0U patent/CN209418149U/en active Active
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