CN213846670U - Audio system of satellite communication equipment - Google Patents
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- CN213846670U CN213846670U CN202023199871.0U CN202023199871U CN213846670U CN 213846670 U CN213846670 U CN 213846670U CN 202023199871 U CN202023199871 U CN 202023199871U CN 213846670 U CN213846670 U CN 213846670U
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Abstract
The utility model discloses an it leads to satellite communication equipment's audio system belongs to satellite communication technical field. The system comprises a ground cellular communication baseband voice interface, a heaven-through baseband voice interface, a Bluetooth audio interface, an echo cancellation system, a voice data switching circuit, a sound card, an MIC array, a receiver, an earphone, a loudspeaker and an audio power amplifier. The voice analog signals are collected through the MIC array, and the loudspeaker sound collected at the same time is eliminated through the echo cancellation system. Then sending the analog signal into sound card to process PCM coding into digital signal, finally switching to the interface of sky call sound through two switches. The sky conversation sound interface provides received voice digital signals, the voice digital signals are switched to the sound card through the switch twice, and the voice digital signals are decoded into analog signals. The problem that the heaven-earth voice communication function cannot be integrated in the existing ground cellular communication baseband solution is solved, and a set of audio system and peripheral audio equipment are shared.
Description
Technical Field
The utility model relates to a satellite communication technical field especially relates to an it leads to satellite communication equipment's audio system.
Background
Cellular networks, also known as land mobile communication systems, utilize a large number of cellular base stations to achieve wireless network coverage of land. The communication modes are classified into a single mode and a dual mode. Satellite communication utilizes a plurality of satellites and a plurality of signal transmitters to realize global wireless signal coverage by placing the signal transmitters on the satellites. The satellite mobile communication system of Tiantong number one is a satellite mobile communication system independently developed in China and is an important component of space information infrastructure in China. The system can provide communication functions of voice communication, short message receiving and sending, data transmission and the like with high reliability and high quality except the ground cellular network coverage area. The system can carry out voice and short message communication with other satellite mobile terminals in the skynet network, and can also carry out interactive communication with the terminals of the ground cellular mobile network, thereby ensuring the timely emergency communication requirement and guarantee under emergency conditions. At present, the mainstream satellite communication baseband module has the functions of voice, data, short message, positioning and the like, and realizes communication with the satellite system of the heaven-earth satellite I. The current mainstream ground cellular communication baseband chip scheme has the functions of ground voice, data, short message, positioning, AP and the like, and realizes the intercommunication with a ground cellular network system. However, in the mainstream cellular communication baseband solution, the sound card only provides one external interface for the voice communication function, and is used for connecting a corresponding ground cellular communication voice interface.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an it leads to satellite communication equipment's audio system solves the unable problem of merging the ability of day to lead to voice communication function in the ground cellular communication baseband solution of mainstream to one set of audio system and peripheral audio equipment of sharing.
The utility model adopts the technical scheme as follows:
an audio system of an all-weather satellite communication device comprises a ground cellular communication baseband voice interface, an all-weather baseband voice interface, a Bluetooth audio interface, an echo cancellation system, a cross switch matrix, a two-way analog change-over switch, a sound card, an MIC array, a receiver, an earphone, a loudspeaker and an audio power amplifier.
The voice input mode of the audio system of the satellite communication equipment is that MIC collects voice analog signals, the voice of a loudspeaker collected at the same time is eliminated through an echo cancellation system, then the analog signals are sent to a sound card to be PCM coded into digital signals, and the sound card transmits the PCM digital signals to a sky call voice interface or a cellular voice interface through a cross switch matrix and a two-way analog change-over switch.
The voice output mode of the audio system of the satellite communication equipment is that a voice digital signal received by a voice interface of a heaven-earth communication or a cellular voice interface is transmitted to a sound card through a cross switch matrix and a two-way analog change-over switch, and the sound card decodes the voice digital signal into a voice analog signal;
when the communication is carried out in a handheld mode, the voice analog signal is sent out through the earphone; when the communication is carried out in a hands-free mode, the voice analog signal is amplified by an audio power amplifier and then is sounded by a loudspeaker; when the earphone is plugged in for communication, the voice analog signal is sent out by the earphone.
The control mode of the audio system of the satellite communication equipment is UI interface, the honeycomb baseband is transfer, the AT command is issued through the serial port tool to control each state of the satellite communication equipment during the satellite communication equipment voice communication, and meanwhile, corresponding information of the satellite communication equipment baseband is reported to the honeycomb baseband and is transmitted to the UI interface for displaying.
The states during the heaven-earth base band voice communication comprise the states of dialing out a call, receiving a call and hanging up a call.
The skynet baseband corresponding information comprises network access flow state, signal intensity, wave spot and electric signal display information.
The audio system mainly stores local audio data such as ringing, alarm clock, recording, MP3 and the like, and during playing, the audio system is switched to a loudspeaker to send out voice through a channel, and the switching of the channel is controlled by GPIO at a cellular communication baseband end.
The Bluetooth communication mode of the audio system of the satellite communication equipment is that the satellite communication baseband and the Bluetooth module perform voice digital interaction in a PCM interface mode, and then voice input signals are restored through sound card coding and decoding. The existing satellite communication equipment has no Bluetooth communication function, the system has the Bluetooth function, and if the existing satellite communication equipment is inconvenient to hold outdoors, voice communication can be carried out by adopting the Bluetooth function.
The realization of the functions of connection pairing, voice answering, hanging up and the like of the Bluetooth module is controlled through GPIO and I2C at the cellular communication baseband end.
And the skynet baseband and the cellular baseband are communicated in a serial port communication mode.
The utility model has the advantages that:
1. the utility model relates to an it leads to satellite communication equipment's audio system, with two kinds of communication modes of ground cellular communication and the satellite communication system that unites two into one, carry this money equipment of a set and can satisfy multiple scene demand (like city, village, forest, desert, snow mountain, ocean), if there is the region that cellular network covered then available cellular communication, if do not then can use the satellite communication that leads to, it leads to satellite signal cover all china and southeast Asia film district.
2. The utility model relates to an it leads to satellite communication equipment's audio system, this equipment use same set of audio system, compare with using two sets of different audio systems, and is succinct more reliable, and cost, volume, the weight of an equipment also can reduce simultaneously.
3. The utility model relates to an it leads to satellite communication equipment's audio system has solved the satellite communication equipment on current market and has not had bluetooth conversation function, and bluetooth function is added to this system, can adopt bluetooth function to carry out voice call if go out when inconvenient handheld. The use requirements of various application scenes are met.
Drawings
Fig. 1 is an overall frame diagram of the audio system of the satellite communication device of the present invention;
fig. 2 is a control frame diagram of the audio system of the satellite communication device according to the present invention;
FIG. 3 is a pin diagram of a cellular communications baseband end;
fig. 4 is a schematic diagram of an aerospace satellite communication baseband pin.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Example 1
The audio system of the satellite communication equipment for heaven access shown in fig. 1 includes a ground cellular communication baseband voice interface, a heaven access baseband voice interface, a bluetooth audio interface, an echo cancellation system, a cross switch matrix, a two-way analog switch, a sound card, an MIC array, a receiver, an earphone, a speaker, and an audio power amplifier. The cellular communication baseband voice interface adopts an LC1860 module, the pin schematic diagram of a chip is shown as 3, and the pin schematic diagram of the skynet baseband voice interface is shown as 4.
The voice input mode of the audio system of the satellite communication equipment is that MIC collects voice analog signals, the voice of a loudspeaker collected at the same time is eliminated through an echo cancellation system, then the analog signals are sent to a sound card to be PCM coded into digital signals, and the sound card transmits the PCM digital signals to a sky conversation voice interface or a cellular voice interface through a cross switch matrix and a two-way analog change-over switch. The voice output mode of an audio system of the satellite communication equipment is that a voice digital signal received by a voice interface of a heaven-earth communication or a cellular voice interface is transmitted to a sound card through a cross switch matrix and a two-way analog change-over switch, and the sound card decodes the voice digital signal into a voice analog signal; when the communication is carried out in a handheld mode, the voice analog signal is sent out through the earphone; when the communication is carried out in a hands-free mode, the voice analog signal is amplified by an audio power amplifier and then is sounded by a loudspeaker; when the earphone is plugged in for communication, the voice analog signal is sent out by the earphone. By combining the ground cellular communication mode and the heaven-south satellite communication mode into a system, 1 device can meet various scene requirements (such as cities, villages, forests, deserts, snow mountains and oceans), cellular communication can be used in areas covered by cellular networks, heaven-south satellite communication can be used if the areas are not covered by cellular networks, and heaven-south satellite signals cover all China and southeast Asian areas.
Example 2
Based on the audio system of the skyward satellite communication device described in embodiment 1, the control mode of the audio system of the skyward satellite communication device is as shown in fig. 2, a UI interface and a cellular baseband are used as a relay, an AT command is issued through a serial port tool to control each state of the skyward baseband during voice communication, and corresponding information of the skyward baseband is also reported to the cellular baseband and is transmitted to the UI interface for display. The states during the heaven-earth base band voice communication comprise the states of dialing out a call, receiving a call and hanging up a call. The skynet baseband corresponding information comprises network access flow state, signal intensity, wave spot and electric signal display information. The audio system mainly stores local audio data such as ringing, alarm clock, recording, MP3 and the like, the audio system is switched to a loudspeaker to send out voice through a channel during playing, the switching of the channel is realized by GPIO at the end of a cellular communication baseband to control the Bluetooth communication mode of the audio system of the satellite communication equipment, and the audio system carries out voice digital interaction between the satellite communication baseband and a Bluetooth module through a PCM interface mode, and then voice input signals are restored through sound card coding and decoding. The existing satellite communication equipment has no Bluetooth communication function, the system has the Bluetooth function, and voice communication can be carried out by adopting the Bluetooth function when the satellite communication equipment is inconvenient to hold outdoors. The functions of connection pairing, voice answering, hanging up and the like of the Bluetooth module are controlled through GPIO and I2C at the baseband end of the cellular communication. The skynet baseband and the cellular baseband are communicated in a serial port communication mode.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions conceived by the inventive work within the technical scope disclosed by the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (8)
1. An audio system for an aerospace satellite communication device, comprising: the audio system of the satellite communication equipment comprises a ground cellular communication baseband voice interface, a satellite communication baseband voice interface, a Bluetooth audio interface, an echo cancellation system, a cross switch matrix, a two-way analog change-over switch, a sound card, an MIC array, a receiver, an earphone, a loudspeaker and an audio power amplifier;
the voice input mode of the audio system of the satellite communication equipment is that a MIC array collects voice analog signals, the voice analog signals collected at the same time are eliminated by an echo cancellation system, then the voice analog signals are sent to a sound card to be PCM-coded into digital signals, and the sound card transmits the PCM digital signals to a sky call voice interface or a cellular voice interface through a cross switch matrix and a two-way analog change-over switch;
the voice output mode of the audio system of the satellite communication equipment is that a voice digital signal received by a voice interface of a heaven-earth communication or a cellular voice interface is transmitted to a sound card through a cross switch matrix and a two-way analog change-over switch, and the sound card decodes the voice digital signal into a voice analog signal; when the communication is carried out in a handheld mode, the voice analog signal is sent out through the earphone; when the communication is carried out in a hands-free mode, the voice analog signal is amplified by an audio power amplifier and then is sounded by a loudspeaker; when the earphone is plugged in for communication, the voice analog signal is sent out by the earphone.
2. The audio system of an aerospace satellite communication device of claim 1, wherein: the control mode of the audio system of the satellite communication equipment is that an AT command is issued through a serial port tool to control each state of the satellite communication equipment during the voice communication of the satellite communication equipment, and meanwhile, corresponding information of the satellite communication equipment is also reported to a cellular baseband and uploaded to a UI interface to be displayed.
3. The audio system of an aerospace satellite communication device of claim 2, wherein: the states during the heaven-earth base band voice communication comprise the states of dialing out a call, receiving a call and hanging up a call.
4. The audio system of an aerospace satellite communication device of claim 2, wherein: the skynet baseband corresponding information comprises network access flow state, signal intensity, wave spot and electric signal display information.
5. The audio system of an aerospace satellite communication device of claim 1, wherein: the audio system mainly stores local audio data, including ringing, alarm clock, recording and MP3, and switches to the loudspeaker to send out voice through the access during playing, and the switching of the access is controlled by GPIO at the cellular communication baseband end.
6. The audio system of an aerospace satellite communication device of claim 1, wherein: the Bluetooth communication mode of the audio system of the satellite communication equipment is that the satellite communication baseband and the Bluetooth module perform voice digital interaction in a PCM interface mode, and then voice input signals are restored through sound card coding and decoding.
7. The audio system of an aerospace satellite communication device of claim 6, wherein: the connection pairing, the voice answering and the hanging-up functions of the Bluetooth module are controlled through GPIO and I2C at the cellular communication baseband end.
8. The audio system of an aerospace satellite communication device of claim 1, wherein: and the skynet baseband and the cellular baseband are communicated in a serial port communication mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023199871.0U CN213846670U (en) | 2020-12-25 | 2020-12-25 | Audio system of satellite communication equipment |
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| CN202023199871.0U CN213846670U (en) | 2020-12-25 | 2020-12-25 | Audio system of satellite communication equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114745470A (en) * | 2022-06-13 | 2022-07-12 | 成都星联芯通科技有限公司 | Communication method, device, terminal and storage medium based on skynet module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114745470A (en) * | 2022-06-13 | 2022-07-12 | 成都星联芯通科技有限公司 | Communication method, device, terminal and storage medium based on skynet module |
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Address after: 610000 Building 1, No. 11, Gaopeng Avenue, Chengdu hi tech Zone, Chengdu, Sichuan Patentee after: Chengdu Guoheng Space Technology Engineering Co.,Ltd. Address before: 610041 Building 1, No.11 Gaopeng Avenue, high tech Zone, Chengdu, Sichuan Patentee before: CHENGDU GUOHENG SPACE TECHNOLOGY ENGINEERING Co.,Ltd. |