CN209897136U - Host device, slave device, and audio conference system - Google Patents
Host device, slave device, and audio conference system Download PDFInfo
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- CN209897136U CN209897136U CN201920822413.6U CN201920822413U CN209897136U CN 209897136 U CN209897136 U CN 209897136U CN 201920822413 U CN201920822413 U CN 201920822413U CN 209897136 U CN209897136 U CN 209897136U
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Abstract
The utility model discloses a host computer equipment, from electromechanical device and conference system. Wherein the host device includes: the system comprises an ultrahigh frequency radio wave frequency modulation UHF FM transmitting unit, at least one UHF FM receiving unit, a signaling transmission and control unit and a sound mixing unit; the at least one UHF FM receiving unit and the UHF FM transmitting unit are in communication connection with the signaling transmission and control unit; the at least one UHF FM receiving unit and the UHF FM transmitting unit are in communication connection with the sound mixing unit. The utility model discloses an adopt UHF FM transmitting element and UHF FM receiving element, because FM modulation belongs to analog modulation can not produce the audio frequency time delay, and FM modulation can transmit high-quality audio frequency in narrower radio frequency bandwidth, can guarantee that tone quality does not receive the loss, and the UHF frequency channel belongs to the exclusive frequency channel of voice conversation, is difficult for receiving the interference of smart machine.
Description
Technical Field
The utility model relates to a signal processing technology field especially relates to a host computer equipment, from electromechanical device and audio conferencing system.
Background
In the teleconference system, a bidirectional voice transmission technology is adopted, and the sound pickup equipment of the traditional teleconference system is divided into two pieces, namely, master equipment and slave equipment. The host equipment is responsible for connecting with the computer, the slave equipment is arranged beside each local speaker, and the host equipment and the slave equipment are in two-way communication through a wireless technology.
The method comprises the following steps that a host device firstly obtains sound transmitted by a remote user from a computer, sends the sound to each local slave device through the host device, and emits the sound through a loudspeaker of the slave device; when a local speaker speaks, the local speaker respectively picks up sound by using a sound pick-up on the slave equipment, and then the sound is sent to the host equipment in a wireless mode, and the host equipment collects the sound of all speakers and sends the sound to a remote user through instant messaging software on a computer.
However, the current two-way voice transmission technology adopts 2.4G or 5.8G digital communication technology. The technology belongs to an ISM (industrial Scientific medical) frequency band, and the frequency band has more coexisting devices, such as WIFI, Bluetooth and the like, so that all the devices with the WIFI and the Bluetooth can be interference sources to generate interference on voice communication.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems existing in the related art, the utility model provides a host computer equipment, slave machine equipment and conference system.
According to the utility model discloses an aspect provides a host computer equipment, include:
the system comprises an ultrahigh frequency radio wave frequency modulation UHF FM transmitting unit, at least one UHF FM receiving unit, a signaling transmission and control unit and a sound mixing unit; the at least one UHF FM receiving unit and the UHF FM transmitting unit are in communication connection with the signaling transmission and control unit; the at least one UHF FM receiving unit and the UHF FM transmitting unit are in communication connection with the sound mixing unit;
the UHF FM receiving unit is used for receiving a voice signal sent by slave equipment and sending the voice signal to the sound mixing unit;
the sound mixing unit is used for receiving the voice signal sent by the at least one UHF FM receiving unit, performing sound mixing processing on the received voice signal and sending the sound mixing signal to the UHF FM transmitting unit;
the UHF FM transmitting unit is used for receiving the sound mixing signal sent by the sound mixing unit and sending the sound mixing signal to the slave equipment;
and the signaling transmission and control unit is used for transmitting signaling information and synchronizing the state between each slave device and the master device.
Further, the UHF FM transmission unit is specifically configured to: broadcasting the mixed sound signal.
Further, the host device further includes: the voice transmission unit is in communication connection with the sound mixing unit and the UHF FM receiving unit;
and the voice transmission unit is used for receiving the voice signal of the sound mixing unit and transmitting the voice signal to external equipment.
Further, the host device further includes: the key unit is in communication connection with the signaling transmission and control unit;
and the key unit is used for setting conference parameters.
Further, the host device further includes: the display unit is in communication connection with the signaling transmission and control unit and the key unit;
the display unit is used for displaying at least one of the received signal strength, the voice signal amplitude and the setting parameters of the host equipment of the UHF FM receiving unit.
Further, the host device further includes: a power supply unit and/or a charging unit.
According to a second aspect of the embodiments of the present invention, there is provided a slave device, comprising:
the system comprises an ultrahigh frequency radio wave frequency modulation UHF FM transmitting unit, an UHF FM receiving unit, a signaling transmission unit, a pickup unit and a voice playing unit; the UHF FM receiving unit and the UHF FM transmitting unit are in communication connection with the signaling transmission unit; the UHF FM receiving unit is in communication connection with the sound pickup unit; the UHF FM receiving unit is in communication connection with the voice playing unit;
the pickup unit is used for picking up a voice signal and sending the voice signal to the UHF FM transmitting unit;
the UHF FM transmitting unit is used for receiving the voice signal sent by the pickup unit and sending the voice signal to the host equipment;
the UHF FM receiving unit is used for receiving the audio mixing signal sent by the host equipment and sending the audio mixing signal to the voice playing unit;
the voice playing unit is used for receiving the audio mixing signal sent by the UHF FM receiving unit and playing the audio mixing signal;
and the signaling transmission unit is used for transmitting signaling information.
Further, the UHF FM receiving unit is specifically configured to: and receiving a mixed sound signal broadcasted by the host equipment.
Further, the slave device further includes: the key unit is in communication connection with the signaling transmission unit;
the key unit is used for at least one of turning on/off the slave equipment, starting and ending the sound pickup unit and binding with the master equipment.
Further, the slave device further includes: the display unit is in communication connection with the signaling transmission unit and the key unit;
the display unit is used for displaying at least one of the current working mode, the online state and whether the slave equipment is in the talking state.
Further, the slave device further includes: a power supply unit and/or a charging unit.
According to a third aspect of embodiments of the present invention, there is provided an audio conferencing system comprising a master device according to any one of the above first aspects and N slave devices according to any one of the above second aspects, wherein N is a positive integer.
Further, the transmission frequencies of the UHF FM transmission units of the N slave devices are different from each other.
Further, the receiving frequencies of the UHF FM receiving units of the N slave devices are kept consistent.
Further, the master device and the N slave devices communicate in a heartbeat packet manner.
Further, the master device is configured to send a communication instruction to the N slave devices in the transmission timeslot, and receive information sent by each slave device in the first receiving timeslot to the nth receiving timeslot with a fixed delay;
and the N slave devices are used for receiving the communication instruction and sending respective information to the host device in respective transmission time slots according to a preset rule.
Further, the voice conference system further includes: k slave devices; wherein K is a positive integer greater than or equal to 1;
the 1 st slave device in the K slave devices is used for receiving the communication instruction, and selecting the Mth transmitting time slot to send the information to the host device outside the occupied time slots of the N slave devices;
the master device is specifically configured to receive information sent by the 1 st slave device in an mth transmission timeslot, select one slave device from the N slave devices according to a preset rule, turn off a UHF FM transmission unit of the selected slave device, and set a transmission frequency of the UHF FM transmission unit of the 1 st slave device as a transmission frequency of the UHF FM transmission unit of the selected slave device.
The embodiment of the utility model provides a technical scheme can include following beneficial effect: through adopting UHF FM transmitting element and UHF FM receiving element, because FM modulation belongs to analog modulation can not produce the audio frequency time delay, and FM modulation can be in the high-quality audio frequency of transmission in narrower radio frequency bandwidth, can guarantee that tone quality does not receive the loss, and the UHF frequency channel belongs to the exclusive frequency channel of voice conversation, is difficult for receiving intelligent equipment's interference.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a block diagram of a host device according to an embodiment of the present invention.
Fig. 2 is a block diagram of a slave device according to a second embodiment of the present invention.
Fig. 3 is a block diagram of an audio conference system according to a third embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.
Example one
Fig. 1 is a block diagram of a host device according to an embodiment of the present invention. As shown in fig. 1, the system comprises an ultrahigh frequency radio wave frequency modulation UHF FM transmission unit 11, at least one UHF FM reception unit 12, a signaling transmission and control unit 13, and a mixing unit 14; wherein, the at least one UHF FM receiving unit 12 and the UHF FM transmitting unit 11 are in communication connection with the signaling transmission and control unit 13; the at least one UHF FM receiving unit 12 and the UHF FM transmitting unit 11 are in communication connection with the sound mixing unit 14;
the UHF FM receiving unit 12 is configured to receive a voice signal sent from a slave device, and send the voice signal to the sound mixing unit 14;
the audio mixing unit 14 is configured to receive the voice signal sent by the at least one UHF FM receiving unit 12, perform audio mixing processing on the received voice signal, and send the audio mixed signal to the UHF FM transmitting unit 11;
the UHF FM transmitting unit 11 is configured to receive the audio mixing signal sent by the audio mixing unit 14, and send the audio mixing signal to the slave device;
the signaling transmission and control unit 13 is configured to transmit signaling information to synchronize states of each slave device and the master device.
The signaling transmission and control unit 13 may be implemented by using 2.4G digital signaling technology. Because the bandwidth required by adopting 2.4G digital signaling is narrower, the method has higher transmission sensitivity and can also resist interference more effectively. Or by 5.8G digital signaling technology.
Wherein the UHF FM transmission unit 11 may be replaced with a VHF FM transmission unit. The UHF FM reception unit 12 may be replaced with a VHF FM reception unit.
This embodiment is through adopting UHF FM transmitting element and UHF FM receiving element, because FM modulation belongs to analog modulation can not produce the audio frequency time delay, and FM modulation can be in the high-quality audio frequency of transmission in narrower radio frequency bandwidth, can guarantee that tone quality does not receive the loss, and the UHF frequency channel belongs to the exclusive frequency channel of voice conversation, is difficult for receiving intelligent equipment's interference.
Further, the UHF FM transmission unit 11 is specifically configured to: broadcasting the mixed sound signal.
Further, the host device further includes: a voice transmission unit 15, wherein the voice transmission unit 15 is connected to the sound mixing unit 14 and the UHF FM receiving unit 12 in a communication manner;
the voice transmission unit 15 is configured to receive the voice signal of the mixing unit and transmit the voice signal to an external device.
The voice transmission unit 15 may be connected to the outside through a USB interface.
Further, the host device further includes: a key unit 16, wherein the key unit 16 is connected with the signaling transmission and control unit 13 in a communication way;
the key unit 16 is used for setting conference parameters.
The conference parameters may be conference volume, the number of persons allowed to talk at the same time, and operating frequency of the device.
Further, the host device further includes: the display unit 17, the display unit 17 is connected with the signaling transmission and control unit 13 and the key unit 16 in a communication way;
the display unit 17 is configured to display at least one of the received signal strength, the voice signal amplitude, and the setting parameter of the host device of the UHF FM receiving unit.
Further, the host device further includes: a power supply unit 18 and/or a charging unit 19 for charging the host device.
Example two
Fig. 2 is a slave device according to a second embodiment of the present invention. As shown in fig. 2, the method specifically includes: an ultrahigh frequency radio wave frequency modulation UHF FM transmitting unit 21, an UHF FM receiving unit 22, a signaling transmission unit 23, a sound pickup unit 24 and a voice playing unit 25; the UHF FM receiving unit 22 and the UHF FM transmitting unit 21 are in communication connection with the signaling transmission unit 23; the UHF FM receiving unit 22 is in communication connection with the sound pickup unit 24; the UHF FM receiving unit 22 is in communication connection with the voice playing unit 25;
the sound pickup unit 24 is used for picking up a voice signal and sending the voice signal to the UHF FM transmission unit 21;
the UHF FM transmission unit 21 is configured to receive the voice signal sent by the sound pickup unit 24, and send the voice signal to a host device;
the UHF FM receiving unit 22 is configured to receive the audio mixing signal sent by the host device, and send the audio mixing signal to the voice playing unit 25;
the voice playing unit 25 is configured to receive the audio mixing signal sent by the UHF FM receiving unit 22, and play the audio mixing signal;
the signaling transmission unit 23 is configured to transmit signaling information.
The signaling transmission unit 23 may be implemented by using a 2.4G digital signaling technology. Because the bandwidth required by adopting 2.4G digital signaling is narrower, the method has higher transmission sensitivity and can also resist interference more effectively. Or by 5.8G digital signaling technology.
This embodiment adopts UHF FM transmitting element and UHF FM receiving element, because FM modulation belongs to analog modulation can not produce the audio frequency time delay, and FM modulation can be in the high-quality audio frequency of transmission in narrower radio frequency bandwidth, can guarantee that tone quality does not receive the loss, and the UHF frequency channel belongs to the exclusive frequency channel of voice conversation, is difficult for receiving intelligent equipment's interference.
Further, the UHF FM receiving unit 22 is specifically configured to: and receiving a mixed sound signal broadcasted by the host equipment.
Further, the slave device further includes: a key unit 26, wherein the key unit 26 is in communication connection with the signaling transmission unit;
the key unit 26 is used for at least one of turning on/off the slave device, starting and ending the sound pickup unit, and binding with the master device.
Further, the slave device further includes: the display unit 27, the display unit 27 is connected with the signaling transmission unit 23 and the key unit 26 in a communication way;
the display unit 27 is used for displaying at least one of the current working mode, the online state and whether the slave device is in a talking state.
Further, the slave device further includes: a power supply unit 28 and/or a charging unit 29 for charging the slave devices.
EXAMPLE III
Fig. 3 is an audio conference system according to a third embodiment of the present invention, which includes a master device 31 according to the first embodiment and N slave devices 32 according to the second embodiment, where N is a positive integer.
The conference system of this embodiment adopts the master device in the first embodiment and the slave device in the second embodiment, and adopts the UHF FM transmitting unit and the UHF FM receiving unit, because the FM modulation belongs to analog modulation and does not generate audio delay, and the FM modulation can transmit high-quality audio within a narrow radio frequency bandwidth, and can ensure that the tone quality is not lost, and the UHF band belongs to a dedicated band for voice communication and is not easily interfered by the intelligent device.
Further, in order to avoid co-channel interference, the transmission frequencies of the UHF FM transmission units of the N slave devices 32 are different from each other.
Further, in order to ensure that the N slave devices 32 can receive the voice information when the master device 31 transmits the voice signal in the broadcast mode, the receiving frequencies of the UHF FM receiving units of the N slave devices 32 are kept consistent.
Further, the master device 31 and the N slave devices 32 perform communication in a heartbeat packet manner.
Further, the master device 31 is configured to send a communication instruction to the N slave devices 32 in a transmission timeslot, and receive information sent by each slave device 32 in a first receiving timeslot to an nth receiving timeslot with a fixed delay;
the N slave devices 32 are configured to receive the communication instruction, and send respective information to the master device 31 in respective transmission timeslots according to a preset rule.
Further, the voice conference system further includes: the K slave devices 33K are positive integers greater than or equal to 1;
the 1 st slave device 33 of the K slave devices is configured to receive the communication instruction, and select an mth transmission timeslot to send its own information to the master device 31, outside the occupied timeslots of the N slave devices 32;
the master device is specifically configured to receive the information sent by the 1 st slave device 32 in the mth transmission timeslot, select one slave device 32 from the N slave devices 32 according to a preset rule, turn off the UHF FM transmission unit of the selected slave device 32, and set the transmission frequency of the UHF FM transmission unit of the 1 st slave device 32 as the transmission frequency of the UHF FM transmission unit of the selected slave device 32.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (17)
1. A host device, comprising: the system comprises an ultrahigh frequency radio wave frequency modulation UHF FM transmitting unit, at least one UHF FM receiving unit, a signaling transmission and control unit and a sound mixing unit; the at least one UHF FM receiving unit and the UHF FM transmitting unit are in communication connection with the signaling transmission and control unit; the at least one UHF FM receiving unit and the UHF FM transmitting unit are in communication connection with the sound mixing unit;
the UHF FM receiving unit is used for receiving a voice signal sent by slave equipment and sending the voice signal to the sound mixing unit;
the sound mixing unit is used for receiving the voice signal sent by the at least one UHF FM receiving unit, performing sound mixing processing on the received voice signal and sending the sound mixing signal to the UHF FM transmitting unit;
the UHF FM transmitting unit is used for receiving the sound mixing signal sent by the sound mixing unit and sending the sound mixing signal to the slave equipment;
and the signaling transmission and control unit is used for transmitting signaling information and synchronizing the state between each slave device and the master device.
2. The host device of claim 1, wherein the UHF FM transmission unit is specifically configured to: broadcasting the mixed sound signal.
3. The host device according to claim 1 or 2, characterized in that the host device further comprises: the voice transmission unit is in communication connection with the sound mixing unit;
and the voice transmission unit is used for receiving the voice signal of the sound mixing unit and transmitting the voice signal to external equipment.
4. The host device according to claim 1 or 2, characterized in that the host device further comprises: the key unit is in communication connection with the signaling transmission and control unit;
and the key unit is used for setting conference parameters.
5. The host device of claim 4, further comprising: the display unit is in communication connection with the signaling transmission and control unit and the key unit;
the display unit is used for displaying at least one of the received signal strength, the voice signal amplitude and the setting parameters of the host equipment of the UHF FM receiving unit.
6. The host device according to claim 1 or 2, characterized in that the host device further comprises: a power supply unit and/or a charging unit.
7. A slave device, comprising: the system comprises an ultrahigh frequency radio wave frequency modulation UHF FM transmitting unit, an UHF FM receiving unit, a signaling transmission unit, a pickup unit and a voice playing unit; the UHF FM receiving unit and the UHF FM transmitting unit are in communication connection with the signaling transmission unit; the UHF FM receiving unit is in communication connection with the sound pickup unit; the UHF FM receiving unit is in communication connection with the voice playing unit;
the pickup unit is used for picking up a voice signal and sending the voice signal to the UHF FM transmitting unit;
the UHF FM transmitting unit is used for receiving the voice signal sent by the pickup unit and sending the voice signal to the host equipment;
the UHF FM receiving unit is used for receiving the audio mixing signal sent by the host equipment and sending the audio mixing signal to the voice playing unit;
the voice playing unit is used for receiving the audio mixing signal sent by the UHF FM receiving unit and playing the audio mixing signal;
and the signaling transmission unit is used for transmitting signaling information.
8. The slave device of claim 7, wherein the UHF FM receiving unit is specifically configured to: and receiving a mixed sound signal broadcasted by the host equipment.
9. The slave device according to claim 7 or 8, characterized in that it further comprises: the key unit is in communication connection with the signaling transmission unit;
the key unit is used for at least one of turning on/off the slave equipment, starting and ending the sound pickup unit and binding with the master equipment.
10. The slave device of claim 9, further comprising: the display unit is in communication connection with the signaling transmission unit and the key unit;
the display unit is used for displaying at least one of the current working mode, the online state and whether the slave equipment is in the talking state.
11. The slave device according to claim 7 or 8, characterized in that it further comprises: a power supply unit and/or a charging unit.
12. An audio conferencing system comprising a master device as claimed in any of claims 1 to 6 and N slave devices as claimed in any of claims 7 to 11, wherein N is a positive integer.
13. The audio conferencing system of claim 12, wherein the transmission frequencies of the UHF FM transmission units of the N slave devices are different from each other.
14. The audio conferencing system of claim 12 or 13, wherein the reception frequencies of the UHF FM reception units of the N slave devices remain the same.
15. The audio conferencing system of claim 12 or 13, wherein the master device and the N slave devices communicate in heartbeat packets.
16. The audio conferencing system of claim 15, wherein the master device is configured to send a communication command to the N slave devices in a transmission timeslot, and receive information sent by each slave device in a first receiving timeslot to an nth receiving timeslot with a fixed delay;
and the N slave devices are used for receiving the communication instruction and sending respective information to the host device in respective transmission time slots according to a preset rule.
17. The audio conferencing system of claim 16, wherein the voice conferencing system further comprises: k slave devices; wherein K is a positive integer greater than or equal to 1;
the 1 st slave device in the K slave devices is used for receiving the communication instruction, and selecting the Mth transmitting time slot to send the information to the host device outside the occupied time slots of the N slave devices;
the master device is specifically configured to receive information sent by the 1 st slave device in an mth transmission timeslot, select one slave device from the N slave devices according to a preset rule, turn off a UHF FM transmission unit of the selected slave device, and set a transmission frequency of the UHF FM transmission unit of the 1 st slave device as a transmission frequency of the UHF FM transmission unit of the selected slave device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920822413.6U CN209897136U (en) | 2019-06-05 | 2019-06-05 | Host device, slave device, and audio conference system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920822413.6U CN209897136U (en) | 2019-06-05 | 2019-06-05 | Host device, slave device, and audio conference system |
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| CN209897136U true CN209897136U (en) | 2020-01-03 |
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| CN201920822413.6U Active CN209897136U (en) | 2019-06-05 | 2019-06-05 | Host device, slave device, and audio conference system |
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