WO2015120633A1 - Système et procédé de commande de haut-parleurs sans fil - Google Patents

Système et procédé de commande de haut-parleurs sans fil Download PDF

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Publication number
WO2015120633A1
WO2015120633A1 PCT/CN2014/072181 CN2014072181W WO2015120633A1 WO 2015120633 A1 WO2015120633 A1 WO 2015120633A1 CN 2014072181 W CN2014072181 W CN 2014072181W WO 2015120633 A1 WO2015120633 A1 WO 2015120633A1
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WO
WIPO (PCT)
Prior art keywords
audio
signal
audio signal
module
slave
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Application number
PCT/CN2014/072181
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English (en)
Chinese (zh)
Inventor
卢廷松
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深圳市日上光电股份有限公司
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Publication of WO2015120633A1 publication Critical patent/WO2015120633A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2227/00—Details of public address [PA] systems covered by H04R27/00 but not provided for in any of its subgroups
    • H04R2227/003—Digital PA systems using, e.g. LAN or internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07—Applications of wireless loudspeakers or wireless microphones

Definitions

  • the present invention relates to the field of audio, and more particularly to a wireless audio control system and method.
  • the control center platform is wired or WIFI
  • the method sends an audio signal to each sound, but the wired mode is complicated and difficult to maintain, and inevitably, there is attenuation and interference in the transmission process; WIFI
  • the method does not require wiring, but since a plurality of sounds work in the same frequency band, it is susceptible to interference, and thus the respective sounds cannot receive the audio signals synchronously, thereby making the effect of surround sound not good and the user experience is not high.
  • the technical problem to be solved by the present invention is to provide a wireless audio control system and method that is simple and difficult to be interfered with in the prior art, which is complicated and susceptible to interference.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: constructing a wireless sound control system, comprising a control center platform and a plurality of sounds, the plurality of sounds including a main sound and at least one slave sound, and
  • the control center platform includes:
  • a first WIFI module for transmitting an audio signal through WIFI
  • the main sound includes:
  • a second WIFI module for receiving an audio signal through WIFI
  • a processing module for processing the received audio signal
  • a first Bluetooth module for transmitting the processed audio signal via Bluetooth
  • a first play module for playing the processed audio signal
  • the slave audio includes:
  • a second Bluetooth module for receiving an audio signal via Bluetooth
  • a second play module for playing the received audio signal.
  • LEDs are disposed on each of the speakers a control unit platform further comprising an input module for receiving an illumination brightness and/or a color temperature adjustment signal input by the user and an audio signal to be transmitted selected by the user;
  • An illumination brightness and/or color temperature adjustment signal is also transmitted between the first WIFI module and the second WIFI module;
  • the processing module is further configured to process the illumination brightness and/or color temperature adjustment signal
  • An illumination brightness and/or color temperature adjustment signal is also transmitted between the first Bluetooth module and the second Bluetooth module;
  • the LED light group performs corresponding illumination according to the received illumination brightness and/or color temperature adjustment signal.
  • the first Bluetooth module further includes:
  • a storage unit that stores a list of slave acoustic identifiers that have been previously searched for within the effective communication range.
  • the first Bluetooth module further includes an antenna and a link controller that are sequentially connected, and the link controller includes:
  • a detecting unit for outputting a link establishment driving signal when a Bluetooth signal valid flag is detected
  • a primary state machine for establishing a drive signal according to the link to initiate a link between the primary sound and the slave in the list.
  • the main state machine is further configured to enter a pause mode when the time when no audio signal is transmitted exceeds a preset time.
  • the invention also constructs a wireless sound control method, comprising:
  • the control center platform sends the audio signal to the main sound through WIFI;
  • the main audio processes the received audio signal, and transmits the processed audio signal to at least one slave audio through Bluetooth, and simultaneously plays the processed audio signal;
  • each of the slaves is provided with an LED light group, and the step A further includes:
  • the control center platform transmits the received illumination brightness and/or color temperature adjustment signal of the user input to the main sound through WIFI;
  • the step B further includes:
  • the main stereo processes the received illumination brightness and / or color temperature adjustment signal, and the processed illumination brightness and / via Bluetooth Or the color temperature adjustment signal is sent to the at least one slave audio, and at the same time, the LED group on the main stereo emits corresponding light according to the received illumination brightness and/or color temperature adjustment signal;
  • the step C further includes:
  • the corresponding LEDs are illuminated from the illuminated LED group based on the received illumination brightness and/or color temperature adjustment signal.
  • step B The step of transmitting the processed audio signal to at least one slave audio via Bluetooth includes:
  • step B1 detecting whether a Bluetooth signal valid flag appears in the data stream to be transmitted, and if yes, performing step B2;
  • the output link establishes a driving signal
  • the processed audio signal is transmitted through the established link.
  • the step B3 is:
  • Establishing a drive signal based on the link initiates link establishment between the primary sound and the slave audio in the list, the list being a list of pre-searched slave audio identifiers within the effective communication range.
  • the method further includes:
  • the pause mode is entered.
  • the control center platform only passes WIFI
  • the audio signal to be played is transmitted to one of the stereos (main audio), and the main audio transmits the received audio signal to other audios (from the audio) through Bluetooth, and then the main audio and the slave audio respectively receive the received audio signals. Play it.
  • audio signals are transmitted between stereos via Bluetooth, and Bluetooth uses frequency hopping technology, its frequency hopping rate can be as high as 3200 hops / Second, therefore, the main sound and the slave sound have a high enough anti-interference ability, so that each sound can synchronously receive and play the audio signal, so that the effect of surround sound is better.
  • Bluetooth provides point-to-point and point-to-multipoint wireless connectivity, all audio is mobile within the effective communication range, so networking is very convenient.
  • Embodiment 1 is a logic diagram of Embodiment 1 of a wireless audio control system of the present invention
  • Embodiment 2 is a logic diagram of Embodiment 2 of the wireless audio control system of the present invention.
  • Embodiment 3 is a logic diagram of Embodiment 1 of a first Bluetooth module in the wireless audio control system of the present invention
  • FIG. 4 is a logic diagram of a second embodiment of the first Bluetooth module in the wireless audio control system of the present invention.
  • FIG. 5 is a flow chart of Embodiment 1 of the wireless audio control method of the present invention.
  • Figure 6 is a flow chart of the first embodiment of the step B in Figure 5;
  • Figure 7 is a flow chart of the second embodiment of step B in Figure 5.
  • FIG. 1 is a logic diagram of a first embodiment of a wireless audio control system of the present invention, the wireless audio control system of the embodiment including a control center platform 10 , sound 20, 30, 40, of which, audio 20 is the main sound, sound 30, 40 For the sound from the sound.
  • the present embodiment shows only two slave sounds, it should be understood that the number of slave sounds is not limited to two, and may be other numbers. If the number of sounds exceeds seven, one or some of the sounds can be set from the sound to the sound and set as the main sound, and in theory, the number of sounds can be expanded to an unlimited number, in practical applications. , choose the right amount of sound as needed.
  • the control center platform 10 includes a first WIFI module 11; the main stereo 20 includes a second WIFI The module 21, the processing module 22, the play module 23 and the first Bluetooth module 24; the slave audio 30 include a second Bluetooth module 31 and a second play module 32.
  • the first WIFI The module 11 is used to transmit an audio signal through WIFI, which may be pre-stored in the SD card of the control center platform 10, or through various audio cables (for example, USB, AUX, RCA, XLR, TRS JACKS, etc.) input audio signal, which can also be a radio broadcast signal received by a frequency modulation (FM) module on the control center platform;
  • the WIFI module 21 is configured to receive an audio signal through the WIFI;
  • the processing module 22 is configured to process the received audio signal;
  • the first play module 23 For playing the processed audio signal, it should be understood that the first playing module 23 processes the input audio signal to be converted into a format suitable for playing before playing;
  • the first Bluetooth module 24 For transmitting the processed audio signal through Bluetooth, it should be understood that the first Bluetooth module 24 processes the input audio signal to be converted into a format supported by the Bluetooth protocol before being transmitted;
  • the second Bluetooth module 31 For receiving an audio signal through Bluetooth;
  • the second playing module 32 is configured to play the received audio signal, and similarly,
  • the control center platform only passes WIFI
  • the audio signal to be played is transmitted to one of the stereos (main audio), and the main audio transmits the received audio signal to other audios (from the audio) through Bluetooth, and then the main audio and the slave audio respectively receive the received audio signals. Play it.
  • audio signals are transmitted between stereos via Bluetooth, and Bluetooth uses frequency hopping technology, its frequency hopping rate can be as high as 3200 hops / Second, therefore, the main sound and the slave sound have a high enough anti-interference ability, so that each sound can synchronously receive and play the audio signal, so that the effect of surround sound is better.
  • Bluetooth provides point-to-point and point-to-multipoint wireless connectivity, all audio is mobile within the effective communication range, so networking is very convenient.
  • FIG. 2 is a logic diagram of a second embodiment of the wireless audio control system of the present invention, and the wireless audio control system of the embodiment is compared with FIG.
  • the wireless audio control system shown differs only in that each audio is provided with an LED light group.
  • the main sound 20 includes a first LED light group 25, and the slave sound 30 includes a second LED light group. 33.
  • the control center platform 10 further includes an input module 12 for receiving illumination brightness and/or color temperature adjustment signals input by the user, and Or, the audio signal to be transmitted selected by the user.
  • an illumination brightness and/or color temperature adjustment signal is transmitted between the first WIFI module 11 and the second WIFI module 21, and the processing module 22 It is also used to process the illumination brightness and/or color temperature adjustment signal; an illumination brightness and/or color temperature adjustment signal is also transmitted between the first Bluetooth module 24 and the second Bluetooth module 32.
  • the first LED The light group 25 and the second LED light group 33 perform corresponding illumination according to the received illumination brightness and/or color temperature adjustment signal, thereby further improving the user experience.
  • FIG. 3 is a logic diagram of Embodiment 1 of a first Bluetooth module in the wireless audio control system of the present invention, the first Bluetooth module 24 including a connected antenna 241 and link controller 242, wherein the link controller 242 specifically includes a detecting unit 2421, a main state machine 2422, and a detecting unit 2421 For outputting a link establishment drive signal when a Bluetooth signal valid flag is detected; main state machine 2422 It is used to establish a driving signal according to the link, and initiates a link establishment between the main sound and the slave sound, and the slave sound is searched for in the effective communication range of the main sound. In addition, the main state machine 2422 When the time when no audio signal is sent exceeds the preset time, the pause is entered (Park ) mode.
  • the technical solution of the embodiment has the following advantages: since the main state machine can be started to initiate the link establishment operation according to the detection result, the useless link between the master and slave audio can be reduced in the case of no audio transmission requirement, and the device is effectively reduced. Power consumption.
  • the first Bluetooth module 24 further includes a storage unit 243, wherein the storage unit 243 A list of slave acoustic identifiers that have been previously searched for within the valid communication range is stored, such that the primary state machine 2422 The drive signal can be established according to the link to initiate the link establishment between the main sound and the slave audio in the list, so that it is not necessary to search for the slave audio device within the effective communication range every time there is an audio transmission requirement.
  • FIG. 5 is a flowchart of Embodiment 1 of a wireless audio control method according to the present invention, the wireless audio control method includes:
  • the control center platform sends the audio signal to the main sound through WIFI;
  • the main audio processes the received audio signal, and transmits the processed audio signal to at least one slave audio through Bluetooth, and simultaneously plays the processed audio signal;
  • each of the speakers is provided with an LED lamp group
  • step A further includes: the control center platform passes WIFI sends the received user input illumination brightness and / or color temperature adjustment signal to the main stereo
  • step B also includes: the main stereo pair received illumination brightness and / Or the color temperature adjustment signal is processed, and the processed illumination brightness and/or color temperature adjustment signal is sent to at least one slave audio through Bluetooth, and at the same time, the LED group on the main stereo is based on the received illumination brightness and / Or the color temperature adjustment signal is correspondingly illuminated
  • the step C further comprises: correspondingly emitting light from the audio LED group according to the received illumination brightness and/or color temperature adjustment signal.
  • step B the step of transmitting the processed audio signal to at least one slave audio via Bluetooth includes:
  • step B1. Check whether the Bluetooth signal valid flag appears in the data stream to be transmitted. If yes, go to step B2. If not, no treatment is done;
  • the output link establishes a driving signal
  • the processed audio signal is transmitted through the established link.
  • step B the step of transmitting the processed audio signal to at least one slave audio via Bluetooth is in addition to the figure In addition to steps B1-B4 shown in 6, after step B4, it also includes:
  • step B5. Determine whether the time when no audio signal is sent exceeds the preset time. If yes, go to step B6. If not, continue to wait for the audio signal to be transmitted;

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Selective Calling Equipment (AREA)
  • Stereophonic System (AREA)
  • Telephone Function (AREA)

Abstract

Système et procédé de commande de haut-parleurs sans fil, comportant les étapes suivantes: une plate-forme (10) de centre de commande envoie un signal audio à un haut-parleur principal (20) par Wi-Fi; le haut-parleur principal (20) traite le signal audio reçu et envoie, par Bluetooth (24), le signal audio traité à au moins un haut-parleur secondaire (30); le signal audio traité est reproduit en même temps; le haut-parleur secondaire (30) reproduit le signal audio reçu.
PCT/CN2014/072181 2014-02-12 2014-02-18 Système et procédé de commande de haut-parleurs sans fil WO2015120633A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201420063636.6U CN203872353U (zh) 2014-02-12 2014-02-12 一种无线音响控制***
CN201420063636.6 2014-02-12

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WO2015120633A1 true WO2015120633A1 (fr) 2015-08-20

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Cited By (1)

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WO2019129127A1 (fr) * 2017-12-31 2019-07-04 华为技术有限公司 Procédé de lecture coopérative multi-terminal d'un fichier audio et terminal

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CN105653228A (zh) * 2014-11-14 2016-06-08 鸿富锦精密工业（深圳）有限公司 音频播放***及音频播放方法
CN104579716A (zh) * 2015-01-27 2015-04-29 河海大学常州校区 基于wlan的校园智能广播***及其工作方法
CN104902424B (zh) * 2015-04-07 2018-05-11 广东欧珀移动通信有限公司 无线智能设备的控制方法、装置和***
CN105025390B (zh) * 2015-07-09 2018-11-16 广东欧珀移动通信有限公司 一种播放场景保存方法、***、播放终端及控制终端
CN106412771A (zh) * 2015-07-27 2017-02-15 连信洲 多声道组合音响
CN105635798B (zh) * 2015-12-29 2019-05-31 福州瑞芯微电子股份有限公司 一种基于异构无线音频的立体声实现方法及***
CN105704535B (zh) * 2016-03-22 2018-09-04 广东欧珀移动通信有限公司 一种音视频播放***控制方法、装置和音视频播放***
CN206212246U (zh) * 2016-09-27 2017-05-31 深圳市蚂蚁雄兵物联技术有限公司 一种组网音响及其***
CN107872754A (zh) * 2016-12-12 2018-04-03 深圳市蚂蚁雄兵物联技术有限公司 一种多声道环绕立体声***及安装方法
CN109040904B (zh) * 2018-10-31 2020-06-16 北京羽扇智信息科技有限公司 智能音箱的音频播放方法及装置
CN109710417A (zh) * 2018-12-29 2019-05-03 苏州思必驰信息科技有限公司 智能音箱***及其实现方法

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