CN114422282B - Conference device, client and remote conference system - Google Patents

Conference device, client and remote conference system Download PDF

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Publication number
CN114422282B
CN114422282B CN202111605885.4A CN202111605885A CN114422282B CN 114422282 B CN114422282 B CN 114422282B CN 202111605885 A CN202111605885 A CN 202111605885A CN 114422282 B CN114422282 B CN 114422282B
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module
conference
led indicator
client
indicator lamp
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CN114422282A (en
Inventor
张知硕
孙益丰
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Shenzhen Taiden Industrial Co ltd
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Shenzhen Taiden Industrial Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The invention relates to conference equipment, a client, a remote conference system and an LED indicator lamp control method, belonging to the technical field of audio processing; wherein, conference equipment includes: the first receiving module is connected with the loudspeaker module and the LED indicator lamp module and is used for receiving the DTMF signal and the downlink conference audio signal sent by the client, sending the DTMF signal to the LED indicator lamp module and sending the downlink conference audio signal to the loudspeaker module; the loudspeaker module is used for playing the audio signal of the downlink conference; the LED indicator lamp module comprises at least one LED indicator lamp and is used for adjusting the display state of the LED indicator lamp according to the DTMF signal; the first sending module is used for sending the uplink conference audio signal to the client; and the conference equipment is connected with the client through a USB data line. According to the invention, the conference equipment is connected with the client through the USB data line, and the DTMF signal sent from the client is transmitted, so that the automatic synchronization of the state of the LED indicator lamp of the conference equipment and the corresponding operation of the client is realized.

Description

Conference device, client and remote conference system
Technical Field
The invention relates to the technical field of audio processing, in particular to conference equipment, a client, a remote conference system and an LED indicator lamp control method.
Background
The web-based remote conference platform has universal applicability, and can be connected with a network and accessed through a browser only by connecting a computer to a conference terminal (USB equipment such as a conference unit, a translation unit and the like), so that a conference can be started anytime and anywhere without long-distance running of conference staff. The conference equipment is provided with a plurality of LED indicator lamps, the states of the LED indicator lamps are used for representing different operation states of the client, however, the existing conference equipment needs a participant to manually set the states of the LED indicator lamps to be synchronous with the operation states of the client, and the participant is a non-professional technical person, so that setting errors often occur. Therefore, the setting operation is simple, and the conference equipment which is not required to be manually set by a conference equipment user is a problem to be solved.
Disclosure of Invention
In order to solve the problem that the state of the LED indicator lamp of the manual setting conference equipment is easy to make mistakes, in a first aspect, the invention provides the conference equipment, which adopts the following technical scheme:
a conference device, comprising: the LED display device comprises a first receiving module, a loudspeaker module, an LED indicator light module, a microphone module and a first sending module;
the first receiving module is connected with the loudspeaker module and the LED indicator lamp module and is used for receiving the DTMF signal and the downlink conference audio signal sent by the client, sending the DTMF signal to the LED indicator lamp module and sending the downlink conference audio signal to the loudspeaker module;
the loudspeaker module is used for playing the downlink conference audio signal;
the LED indicator lamp module comprises at least one LED indicator lamp and is used for adjusting the display state of the LED indicator lamp according to the DTMF signal;
the first sending module is configured to send an uplink conference audio signal to the client.
Through adopting above-mentioned technical scheme, utilize DTMF signal to transmit conference equipment's LED pilot lamp state adjustment information, realized conference equipment LED pilot lamp state and the automatic synchronization of the corresponding operation of customer end to need not the participant and manually set up conference equipment end LED pilot lamp's state, avoided manually setting up the easy wrong condition of LED pilot lamp state appearance.
Optionally, the conference device is connected to the client through a USB data line.
By adopting the technical scheme, the USB data line is utilized to connect the conference equipment and the client to transmit the DTMF signal, so that the transmission of the downlink conference audio signal and the DTMF signal can be realized only by connecting the conference equipment and the client through one USB data line, no extra wiring is needed, and the conference equipment has the advantage of plug and play.
Optionally, the first receiving module receives the DTMF signal and the downlink conference audio signal sent by the client through a USB sound card;
the USB sound card comprises a first sound channel and a second sound channel;
the first channel is used for transmitting the DTMF signal, and the second channel is used for transmitting the downstream conference audio signal.
By adopting the technical scheme, the DTMF signal and the downlink conference audio signal are respectively transmitted to the conference equipment through different channels of the USB sound card, and the DTMF signal is transmitted under the condition that the transmission of the downlink conference audio signal is not influenced.
Optionally, the first channel is a left channel and the second channel is a right channel; or (b)
The first channel is a right channel and the second channel is a left channel.
By adopting the technical scheme, the first sound channel and the second sound channel are specifically limited, and the application scene is enriched.
Optionally, the LED indicator module is specifically configured to:
decoding the DTMF signal to obtain LED indicator lamp state adjustment information; and acquiring an LED indicator lamp identifier and a state to be displayed according to the LED indicator lamp state adjustment information and a preset mapping table, and activating an LED indicator lamp corresponding to the identifier to the state to be displayed.
Through adopting above-mentioned technical scheme, at first obtain the LED pilot lamp state adjustment information that DTMF carried through decoding, then obtain corresponding LED pilot lamp sign and wait to show the state according to preset mapping table to activate corresponding LED pilot lamp to wait to show the state, thereby embodied how to adjust the demonstration state of LED pilot lamp according to the DTMF signal, be convenient for realize.
Optionally, the device further comprises a key module;
the key module is connected with the first sending module and is used for collecting key operation instructions and sending the key operation instructions to the first sending module;
the first sending module is further configured to send the key operation instruction to the client.
By adopting the technical scheme, the functions of the microphone, the translation, the silence, the listening channel or the output channel and the like are controlled from the conference equipment end through key operation while the function control is carried out on the client, so that the diversification of control modes is realized.
In a second aspect, the present invention provides a client, which adopts the following technical scheme:
a client, for use in a teleconferencing system, comprising: the system comprises a second receiving module, a first generating module and a second sending module;
the second receiving module is connected with the first generating module and the second sending module and is used for receiving the downlink conference audio signals issued by the server and sending the downlink conference audio signals to the second sending module; receiving an uplink conference audio signal sent by the conference equipment, and sending the uplink conference audio signal to the second sending module;
the first generating module is connected with the second sending module and is used for generating LED indicator lamp state adjustment information when the client triggers operation and sending the LED indicator lamp state adjustment information to the second sending module;
the second sending module is configured to convert the LED indicator status adjustment information into a DTMF signal, send the DTMF signal and the downstream conference audio signal to the conference device, and send the upstream conference audio signal to the server.
Through adopting above-mentioned technical scheme, utilize the LED pilot lamp state adjustment information that DTMF signal transmitted, realized meeting equipment LED pilot lamp state and the automatic synchronization of the corresponding operation of customer end to need not the participant and manually set up the state of meeting equipment end LED pilot lamp, avoided the condition that the manual LED pilot lamp state of setting up appears the mistake easily.
Optionally, the client is connected with the conference equipment through a USB data line;
the second sending module sends the DTMF signal and the downlink conference audio signal through a USB sound card;
the USB sound card comprises a first sound channel and a second sound channel;
the first channel is used for transmitting the DTMF signal, and the second channel is used for transmitting the downstream conference audio signal.
Through adopting above-mentioned technical scheme, utilize USB data line to link to each other conference equipment and customer end, transmit DTMF signal and downstream meeting audio signal respectively to conference equipment through the different sound channels of USB sound card, under the condition that does not influence downstream meeting audio signal transmission, transmit DTMF signal. In addition, the conference equipment and the client are connected through only one USB data line, no extra wiring is needed, and the conference equipment has the advantage of plug and play.
Optionally, the method further comprises: a judging module;
the judging module is connected with the second receiving module and the second sending module;
the second receiving module is further configured to receive a key operation instruction sent by the conference device, and send the key operation instruction to the judging module;
the judging module is used for judging whether the key operation instruction is executed or not according to a preset rule, if yes, executing corresponding operation, generating LED indicator lamp state adjustment information, and sending the LED indicator lamp state adjustment information to the second sending module.
By adopting the technical scheme, whether the key operation instruction of the conference equipment is executed is judged through the client, so that the situation of key operation errors of a participant at the conference equipment end is avoided, and when the judgment is yes, corresponding operation is executed, and LED indicator lamp state adjustment information is generated and sent, so that the automatic synchronization of the LED indicator lamp state of the conference equipment and the corresponding operation of the client is realized.
In a third aspect, the present invention provides a teleconferencing system, which adopts the following technical scheme:
a teleconferencing system, comprising: a server, a plurality of clients described in the foregoing sections, and a plurality of conference devices described in the foregoing sections;
the server is connected with a plurality of clients through the Internet, and the clients are in one-to-one correspondence with the conference equipment and are connected through USB data lines.
In a fourth aspect, the invention provides a control method for an LED indicator, which adopts the following technical scheme:
a control method of an LED indicator lamp is applied to conference equipment;
receiving DTMF signals sent by a client;
decoding the DTMF signal to obtain LED indicator lamp state adjustment information;
acquiring an LED indicator lamp identifier and a state to be displayed according to the LED indicator lamp state adjustment information and a preset mapping table;
and activating an LED indicator lamp corresponding to the mark to the state to be displayed.
Through adopting above-mentioned technical scheme, the LED pilot lamp state adjustment information of meeting equipment is transmitted through DTMF signal, has realized meeting equipment LED pilot lamp state and the automatic synchronization of the corresponding operation of customer end to need not the manual state of setting up meeting equipment end LED pilot lamp of participant, avoided the condition that the manual LED pilot lamp state of setting up appears the mistake easily.
In summary, the present invention includes at least one of the following beneficial technical effects:
1. the LED indicator lamp state adjustment information of the conference equipment is transmitted through the DTMF signals, so that the automatic synchronization of the corresponding operation of the conference equipment LED indicator lamp state and the client is realized, the state of the conference equipment end LED indicator lamp is not required to be manually set by a participant, and the condition that the state of the LED indicator lamp is easy to be wrong is avoided.
2. The DTMF signal is transmitted through the USB sound card, so that the conference equipment and the client are connected through one USB data line, the downlink conference audio signal and the DTMF signal can be transmitted simultaneously, extra wiring is not needed, and the USB sound card is convenient to use and has the advantage of plug and play.
3. The DTMF signal and the downlink conference audio signal are respectively transmitted to the conference equipment through different channels of the USB sound card, and the DTMF signal is transmitted under the condition that the transmission of the downlink conference audio signal is not affected.
Drawings
Fig. 1 is a block diagram of a conference apparatus according to an embodiment of the present invention.
Fig. 2 is a block diagram of a client architecture of an embodiment of the present invention.
Fig. 3 is a diagram of a teleconferencing system architecture in accordance with an embodiment of the present invention.
Fig. 4 is a flowchart of a method for controlling an LED indicator according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings 1 to 4 and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The embodiment of the invention discloses conference equipment 100. Referring to fig. 1, the conference apparatus 100 includes a first receiving module 11, a speaker module 12, an LED indicator module 13, a microphone module 14, a key module 15, and a first transmitting module 16.
The first receiving module 11 is connected with the speaker module and the LED indicator module, and is configured to receive the DTMF signal and the downlink conference audio signal sent by the client, send the DTMF signal to the LED indicator module, and send the downlink conference audio signal to the speaker module.
DTMF (Udal Tone Multi Frequency) is a dual tone multi frequency signal, a type of user signaling between a telephone set and an exchange in a telephone system, typically used to send a called number. DTMF consists of high frequency groups and low frequency groups, a high frequency signal and a low frequency signal are superimposed and combined into a combined signal representing a number, and there are 16 codes in total.
The client is a computer terminal, DTMF signals carry state adjustment information of the LED indicator lights, downlink conference audio signals carry downlink sound signals generated in a remote conference platform, and specifically, audio signals collected by microphones of other conference devices.
The conference equipment is connected with the client through a USB data line, a USB sound card is built in the conference equipment, a first channel and a second channel are arranged in the USB sound card, the first channel is used for transmitting DTMF signals, the second channel is used for transmitting downlink conference audio signals, wherein the first channel is a left channel, the second channel is a right channel, or the first channel is a right channel, and the second channel is a left channel. In the first receiving module 11, the conference device receives the DTMF signal and the downstream conference audio signal sent by the client through the USB sound card, specifically, receives the DTMF signal through the first channel of the USB sound card, and receives the downstream conference audio signal through the second channel of the USB sound card. The DTMF signal is transmitted through the USB sound card, so that the conference equipment and the client are connected through one USB data line, the downlink conference audio signal and the DTMF signal can be transmitted simultaneously, extra wiring is not needed, and the USB sound card is convenient to use and has the advantage of plug and play. And, transmit DTMF signal and downstream conference audio signal to meeting equipment through different sound channels of USB sound card respectively, can send DTMF signal under the condition that does not influence downstream conference audio signal transmission.
Speaker module 12 for playing the downstream conference audio signals.
After receiving the downstream conference audio signal sent by the first receiving module 11, the speaker module 12 decodes the downstream conference audio signal, converts the digital signal into an analog signal, and the decoding mode corresponds to the client encoding mode, which may be PCM, WMA, ADPCM, LPC, MP, AAC, CELP, or the like, and is preferably PCM.
The LED indicator module 13 includes at least one LED indicator for adjusting a display state of the LED indicator according to the DTMF signal.
The conference equipment comprises at least one LED indicator lamp, each LED indicator lamp comprises 3 states of on, off and flashing, different states of the LED indicator lamps are used for representing different operation states of the client, and specifically, the corresponding relation between the state adjustment information of the LED indicator lamps and the identification and display states of the LED indicator lamps is stored through a preset mapping table. As an example, the conference device is provided with 8 LED indicator lights, and the mapping table is shown in table 1.
TABLE 1
No LED name OFF ON FLASH
1 Mic Red Led *10# *1C# *1D#
2 Mic Green Led *20# *2C# *2D#
3 Floor Led *50# *5C# *5D#
4 Incoming 1 Led *60# *6C# *6D#
5 Incoming 2 Led *70# *7C# *7D#
6 Outgoing A Led *90# *9C# *9D#
7 Outgoing B Led *A0# *AC# *AD#
In table 1, 1-7 are the LED indicator, ON indicates an ON state, OFF indicates an OFF state, and FLASH indicates a flashing state, where the flashing state is in an information transmission state, and _ # indicates an actual state of the LED indicator.
For example, the Mic Red Led and Mic Green Led are microphone switch indicator lights, the microphone is turned on to illuminate Green, the microphone is turned off to illuminate Red or not, and when sound is transmitted, the Green light blinks; the Floor Led is a translation indicator, the Incoming 1/2 Led is a listening channel indicator, and the outbound a/B Led is an output channel indicator.
It should be noted that the LED indicator lamps in table 1 are only an example, and in practical application, the number and the names of the LED indicator lamps may be set according to practical requirements.
After receiving the DTMF signal sent by the first receiving module 11, the LED indicator module 13 decodes the DTMF signal to obtain LED indicator state adjustment information, where the decoding mode corresponds to the client coding mode, and may be PCM, WMA, ADPCM, LPC, MP, AAC, CELP, or the like, and is preferably PCM. And acquiring an LED indicator lamp identifier and a state to be displayed according to the LED indicator lamp state adjustment information and a preset mapping table, and activating an LED indicator lamp corresponding to the identifier to the state to be displayed. For example, if the LED indicator adjustment information carried in the DTMF signal is "×2c#", the MicGreen LED is activated to be in an on state, or the MicGreen LED is activated to be in an on state. The LED indicator lamp mark can be a serial number or a name.
The microphone module 14 is connected to the first transmitting module 15, and is configured to collect the uplink conference audio signal and transmit the uplink conference audio signal to the first transmitting module 16.
When the microphone switch is in an on state, the microphone collects ambient sound. The ambient sound specifically includes speech, translations, etc. of the participant.
The key module 15 is connected to the first sending module 15, and is configured to collect a key operation instruction, and send the key operation instruction to the first sending module 16.
The conference device comprises one or more of a microphone key, a translation key, a mute key, a listening channel selection key and an output channel selection key. When the participant operates one or more keys, the corresponding key operation instruction is collected and sent to the first sending module 16.
It should be noted that, the remote conference interface of the client has functional options for controlling functions such as microphone, translation, silence, listening channel, output channel, etc., so the key module 15 is an optional module in the conference device. When the key module 15 is included in the conference device, an operation instruction of the corresponding function may be initiated by the key module 15 or the client, and when the key module 15 is not included in the conference device, control of the corresponding function is initiated by the client.
The first sending module 16 is configured to send the uplink conference audio signal to the client, or send the uplink conference audio signal and the key operation instruction to the client.
Specifically, an uplink conference audio signal is sent through the USB sound card. The upstream conference audio signal is encoded and the analog signal is converted to a digital signal prior to transmission. When the uplink conference audio signal is sent through the USB sound card, the second channel can be adopted to independently transmit the uplink conference audio signal, and the first channel and the second channel can also be adopted to transmit the uplink conference audio signal at the same time, so that the utilization rate of the sound card is improved.
In this embodiment, the state adjustment information of the LED indicator light of the conference device is transmitted through DTMF signals, so that automatic synchronization of corresponding operations of the state of the LED indicator light of the conference device and the client is achieved, and therefore a participant is not required to manually set the state of the LED indicator light of the conference device, and the situation that errors occur easily in manually setting the state of the LED indicator light is avoided.
Referring to fig. 2, an embodiment of the present invention discloses a client 200, which is applied to a teleconference system, and includes a second receiving module 21, a first generating module 22, a judging module 23, and a second transmitting module 24.
The second receiving module 21 is connected with the first generating module 22, the judging module 23 and the second sending module 24, and is used for receiving the downlink conference audio signal issued by the server and sending the downlink conference audio signal to the second sending module 24; and receiving the uplink conference audio signal sent by the conference device, sending the uplink conference audio signal to the second sending module 24, or receiving the uplink conference audio signal and the key operation instruction sent by the conference device, sending the uplink conference audio signal to the second sending module 24, and sending the key operation instruction to the judging module 23.
The first generating module 22 is connected to the second sending module 24, and is configured to generate LED indicator state adjustment information when the client triggers an operation, and send the LED indicator state adjustment information to the second sending module 23.
The remote conference interface of the client is provided with function options for controlling the functions of a microphone, translation, silence, a listening channel, an output channel and the like, a participant can select the corresponding function from the remote conference interface of the client to control, after the user selects the corresponding function option, namely after triggering the corresponding operation instruction, the corresponding function is executed, the executed state is displayed on the remote conference interface of the client, and meanwhile, the first generation module 22 generates corresponding LED indicator lamp state adjustment information for synchronously adjusting the LED indicator lamp state of the conference equipment according to the operation information of the user.
The judging module 23 is connected to the second sending module 24, and is configured to judge whether to execute the key operation instruction according to a preset rule, if yes, execute a corresponding operation, display the executed state on the remote conference interface of the client, and send LED indicator lamp state adjustment information to the second sending module 24, if no, display alarm information on the remote conference interface of the client.
For example, the key operation instruction is a microphone start request, if the client allows the participant to access, the client executes a corresponding function, starts a microphone switch at the remote conference interface, and sends LED indicator state adjustment information to the second sending module 24, if not, alarm information is displayed at the remote conference interface of the client, where the alarm information includes specific key operation information and alarm reasons. Wherein the preset rules are preset by the teleconference system.
It should be noted that, the determining module 23 of the client is optional, and when the key module 15 is not present in the conference device, the corresponding determining module 23 is not present in the client.
The client side is used for judging whether to execute the key operation instruction of the conference equipment, so that the situation that a participant is wrong in key operation at the conference equipment side is avoided, and when the judgment is yes, corresponding operation is executed, the executed state is displayed on a remote conference interface of the client side, and LED indicator lamp state adjustment information is sent, so that the automatic synchronization of the LED indicator lamp state of the conference equipment and the corresponding operation of the client side is realized.
The second sending module 24 is configured to convert the LED indicator status adjustment information into a DTMF signal, send the DTMF signal and the downlink conference audio signal to the conference device, and send the uplink conference audio signal to the server.
The client 200 is connected to the conference device 100 through a USB data line, in which a USB sound card is built in, and in which a first channel for transmitting DTMF signals and a second channel for transmitting downlink conference audio signals are provided, wherein the first channel is a left channel, the second channel is a right channel, or the first channel is a right channel, and the second channel is a left channel. When the conference device is connected with the client through the USB interface, the client transmits DTMF signals through a first sound channel of the USB sound card, and transmits downlink conference audio signals through a second sound channel of the USB sound card. The DTMF signal is transmitted through the USB sound card, so that the conference equipment and the client are connected through one USB data line, the downlink conference audio signal and the DTMF signal can be transmitted simultaneously, extra wiring is not needed, and the USB sound card is convenient to use and has the advantage of plug and play. And, transmit DTMF signal and downstream conference audio signal to meeting equipment through different sound channels of USB sound card respectively, can send DTMF signal under the condition that does not influence downstream conference audio signal transmission.
Before transmitting the DTMF signal and the downstream conference audio signal, the DTMF signal and the downstream conference audio signal need to be encoded, and the analog signal is converted into a digital signal, where the encoding mode corresponds to the decoding mode at the conference device end, and may be PCM, WMA, ADPCM, LPC, MP, AAC, CELP, or the like, and is preferably PCM.
In this embodiment, the state adjustment information of the LED indicator light of the conference device is transmitted through DTMF signals, so that automatic synchronization of corresponding operations of the state of the LED indicator light of the conference device and the client is achieved, and therefore a participant is not required to manually set the state of the LED indicator light of the conference device, and the situation that errors occur easily in manually setting the state of the LED indicator light is avoided.
Referring to fig. 3, the embodiment of the present invention discloses a teleconference system 400, where the teleconference system includes a server 300, a client 200, and a conference device 100, the server 300 is connected to a plurality of clients 200 through the internet, and the clients 200 are in one-to-one correspondence with the conference device 100 and are connected through USB data lines. .
When the conference device 100 is connected to the client 200 through the USB data line, the conference device 100 is a USB composite device, including: USB Audio devices (USB sound cards), USB HID input devices and USB Mass Storage devices.
In the client 200, the user enters the teleconference platform interface by logging into a browser or app, and the client 200 and the conference device 300 are the same as in the previous embodiments and will not be described again here.
The embodiment of the invention discloses a control method of an LED indicator lamp, which is applied to conference equipment, and referring to FIG. 4, the control method of the LED indicator lamp comprises the following steps:
s41, receiving DTMF signals sent by a client;
DTMF (Udal Tone Multi Frequency) is a dual tone multi frequency signal, a type of user signaling between a telephone set and an exchange in a telephone system, typically used to send a called number. DTMF consists of high frequency groups and low frequency groups, a high frequency signal and a low frequency signal are superimposed and combined into a combined signal representing a number, and there are 16 codes in total. In the teleconference system, DTMF signals carry state adjustment information of LED indicator lamps.
In the conference device, a USB sound card is built in, and in the USB sound card, a first channel and a second channel are provided, where the first channel is used for transmitting DTMF signals, the second channel is used for transmitting downlink conference audio signals, and the first channel is a left channel, the second channel is a right channel, or the first channel is a right channel, and the second channel is a left channel. The conference device receives the DTMF signal and the downlink conference audio signal sent by the client through the USB sound card, specifically, receives the DTMF signal through the first channel of the USB sound card, and receives the downlink conference audio signal through the second channel of the USB sound card. Through the mode, the conference equipment can simultaneously transmit the downlink conference audio signal and the DTMF signal only by connecting the USB data line with the client, so that the aim of automatic synchronization of the state of the LED indicator lamp of the conference equipment and the corresponding operation of the client is fulfilled, no extra wiring is needed, the use is convenient, and the conference equipment has the advantage of plug and play.
S42, decoding the DTMF signal to obtain LED indicator lamp state adjustment information;
decoding the DTMF signal received by the first channel, converting the digital signal into an analog signal, and obtaining LED indicator state adjustment information, where the decoding mode corresponds to the client encoding mode, and may be PCM, WMA, ADPCM, LPC, MP, AAC, CELP, or the like, and is preferably PCM.
S43, according to the LED indicator lamp state adjustment information and a preset mapping table, obtaining an LED indicator lamp mark to be adjusted and a state to be displayed.
The conference equipment is provided with at least one LED indicator lamp, each LED indicator lamp comprises 3 states of on, off and flashing, different states of the LED indicator lamp are used for representing different operation states of a client, and specifically, the corresponding relation between LED indicator lamp state adjustment information and LED indicator lamp identification and display states is stored through a preset mapping table.
It should be noted that, the preset mapping table is the same as that of the foregoing embodiment, and will not be described herein.
For example, the adjustment information of the LED indicator light carried in the DTMF signal is "×2c#", and the LED indicator light to be adjusted is Mic Green LED, and the state to be displayed is on.
S44, activating the LED indicator lamp corresponding to the mark to a state to be displayed.
And activating the LED indicator lamp to be adjusted to be in a state to be displayed according to the obtained LED indicator lamp identifier to be adjusted and the state to be displayed, for example, activating the Mic Green LED to be in an on state if the LED indicator lamp to be adjusted is Mic Green LED and the state to be displayed is on.
The LED indicator lamp state adjustment information of the conference equipment is transmitted through the DTMF signals, so that the automatic synchronization of the corresponding operation of the conference equipment LED indicator lamp state and the client is realized, the state of the conference equipment end LED indicator lamp is not required to be manually set by a participant, and the condition that the state of the LED indicator lamp is easy to be wrong is avoided.
The foregoing description of the preferred embodiments of the invention is not intended to limit the scope of the invention in any way, including the abstract and drawings, in which case any feature disclosed in this specification (including abstract and drawings) may be replaced by alternative features serving the same, equivalent purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.

Claims (6)

1. A conference device, comprising: the LED display device comprises a first receiving module, a loudspeaker module, an LED indicator light module, a microphone module and a first sending module;
the first receiving module is connected with the loudspeaker module and the LED indicator lamp module and is used for receiving the DTMF signal and the downlink conference audio signal sent by the client, sending the DTMF signal to the LED indicator lamp module and sending the downlink conference audio signal to the loudspeaker module;
the DTMF signal is converted from the generated LED indicator lamp state adjustment information when the client triggers the operation; the triggering operation is to select a corresponding function from a teleconference interface of the client to control;
the loudspeaker module is used for playing the downlink conference audio signal;
the LED indicator lamp module comprises at least one LED indicator lamp and is used for adjusting the display state of the LED indicator lamp according to the DTMF signal;
the microphone module is connected with the first sending module and is used for collecting the uplink conference audio signals and sending the uplink conference audio signals to the first sending module;
the first sending module is configured to send the uplink conference audio signal to the client; the client is a computer terminal;
the conference equipment is connected with the client through a USB data line;
the first receiving module receives the DTMF signal and the downlink conference audio signal sent by the client through a USB sound card;
the USB sound card comprises a first sound channel and a second sound channel;
the first channel is used for transmitting the DTMF signal, and the second channel is used for transmitting the downstream conference audio signal.
2. The conference device of claim 1, wherein the LED indicator light module is specifically configured to:
decoding the DTMF signal to obtain LED indicator lamp state adjustment information; and acquiring an LED indicator lamp identifier and a state to be displayed according to the LED indicator lamp state adjustment information and a preset mapping table, and activating an LED indicator lamp corresponding to the identifier to the state to be displayed.
3. Conference device according to claim 1, characterized in that: the device also comprises a key module;
the key module is connected with the first sending module and is used for collecting key operation instructions and sending the key operation instructions to the first sending module;
the first sending module is further configured to send the key operation instruction to the client.
4. A client for use in a teleconferencing system, comprising: the system comprises a second receiving module, a first generating module and a second sending module; the client is a computer terminal;
the second receiving module is connected with the first generating module and the second sending module and is used for receiving the downlink conference audio signals issued by the server and sending the downlink conference audio signals to the second sending module; receiving an uplink conference audio signal sent by conference equipment, and sending the uplink conference audio signal to the second sending module;
the first generating module is connected with the second sending module and is used for generating LED indicator lamp state adjustment information when the client triggers operation and sending the LED indicator lamp state adjustment information to the second sending module; the triggering operation is to select a corresponding function from a teleconference interface of the client to control;
the second sending module is configured to convert the LED indicator state adjustment information into a DTMF signal, send the DTMF signal and the downstream conference audio signal to the conference device, and send the upstream conference audio signal to the server; the conference equipment adjusts the display state of the LED indicator lamp according to the DTMF signal;
the client is connected with the conference equipment through a USB data line;
the second sending module sends the DTMF signal and the downlink conference audio signal through a USB sound card;
the USB sound card comprises a first sound channel and a second sound channel;
the first channel is used for transmitting the DTMF signal, and the second channel is used for transmitting the downstream conference audio signal.
5. The client of claim 4, further comprising a determination module;
the judging module is connected with the second receiving module and the second sending module;
the second receiving module is further configured to receive a key operation instruction sent by the conference device, and send the key operation instruction to the judging module;
the judging module is used for judging whether the key operation instruction is executed or not according to a preset rule, if yes, executing corresponding operation, generating LED indicator lamp state adjustment information, and sending the LED indicator lamp state adjustment information to the second sending module.
6. A teleconferencing system, comprising: a server, a plurality of conference devices according to any of claims 1-3 and a plurality of clients according to any of claims 4-5;
the server is connected with a plurality of clients through the Internet, and the clients are in one-to-one correspondence with the conference equipment and are connected through USB data lines.
CN202111605885.4A 2021-12-25 2021-12-25 Conference device, client and remote conference system Active CN114422282B (en)

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US20030058844A1 (en) * 2001-09-24 2003-03-27 Teleware, Inc. Communication management system with lines status notification and single button dialing for key switch emulation
US20100226289A1 (en) * 2007-10-08 2010-09-09 Maeenpaeae Jouni Floor control in telecommunications conference calls
CN103002167B (en) * 2012-12-20 2015-05-20 深圳中兴网信科技有限公司 Mobile terminal, conference server and conference control method
CN103402034A (en) * 2013-07-24 2013-11-20 佳都新太科技股份有限公司 Method for realizing real-time control of teleconference by utilizing 2G (second generation) voice channel
CN105635494A (en) * 2015-12-28 2016-06-01 Tcl集团股份有限公司 Method for realizing state exchange of both conversation sides based on DTMF, terminals and system thereof
CN106061044B (en) * 2016-07-28 2018-03-09 深圳市国华光电研究院 A kind of intelligent lamp control method and control system based on DTMF patterns
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CN112887654B (en) * 2021-01-25 2022-05-31 联想(北京)有限公司 Conference equipment, conference system and data processing method

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