CN102857857B - Loudspeaker box channel matching method of multi-channel wireless audio system - Google Patents
Loudspeaker box channel matching method of multi-channel wireless audio system Download PDFInfo
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- CN102857857B CN102857857B CN201210036065.2A CN201210036065A CN102857857B CN 102857857 B CN102857857 B CN 102857857B CN 201210036065 A CN201210036065 A CN 201210036065A CN 102857857 B CN102857857 B CN 102857857B
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Abstract
The invention discloses a loudspeaker box channel matching method of a multi-channel wireless audio system. The loudspeaker box channel matching method of the multi-channel wireless audio system comprises the following steps: 1) each loudspeaker box in the system is placed well; 2) each extension loudspeaker and a main engine loudspeaker box are paired by utilizing the unique coding information, and machine codes of the extension loudspeakers are sorted and stored; 3) all extension loudspeaker boxes are connected sequentially, and commands for generating sound signals are emitted by the main engine loudspeaker box; 4) after the extension loudspeakers receive the commands, sound signals with certain frequency are emitted; 5) two mics on the main engine loudspeaker box receive sound signals, the left position and the right position of the extension loudspeaker boxes, which are opposite to the main engine loudspeaker box, are determined according to the volume of the sound signals collected by the two mics, the distances from the extension loudspeaker boxes to the main engine loudspeaker box are calculated according to the time for collecting the sound signals by the mics, and the positioning information of each extension loudspeaker is analyzed; and 6) the main engine loudspeaker box emits six groups of positioning signals, each extension loudspeaker box selects and receives the corresponding positioning information according to respective machine code, and the intelligent match of the channel is finished.
Description
Technical field
The present invention relates to a kind of wireless sound system communication technical field, specifically, relate to a kind of audio amplifier position that can accurately realize fast and automatically locate the loudspeaker box channel matching process with the channel wireless radio multi sound system of loudspeaker box channel Intelligent Matching.
Background technology
At present, most distance-finding method adopts laser, electromagnetic wave (comprises infrared, bluetooth) and ultrasonic wave find range, in range finding, the speed that light wave and electromagnetic wave are propagated in atmosphere is very fast, per second close to 30 kilometers, therefore, the error of very little error ratio as 0.1 second all will cause the range error of 30000m, be not suitable for realizing precision ranging in medium and small distance range, in addition, ranging localization technology is in the application of channel wireless radio multi field of audio, application particularly in home theater is very few especially, most of wireless acoustics is all install and use according to the fixing sound channel diaphone sound requiring to set that dispatches from the factory of producer, so often cause the coupling too mechanization of loudspeaker box channel, reasonable even not.
Summary of the invention
For above deficiency, the invention provides a kind of audio amplifier position that can accurately realize fast and automatically locate the loudspeaker box channel matching process with the channel wireless radio multi sound system of loudspeaker box channel Intelligent Matching, it comprises: 1) start main frame audio amplifier, connect in turn each extension set audio amplifier, utilize unique coded message to match between each extension set audio amplifier and main frame audio amplifier respectively; 2) measure the Distance geometry position of each extension set audio amplifier relative to main frame audio amplifier successively, each extension set audio amplifier is positioned; 3) be that it mates suitable output channel according to the locating information of each extension set audio amplifier and machine code.
Described step 1) comprising: 11) define the unique machine group code information realizing carrying out between main frame audio amplifier and each extension set audio amplifier communication in channel wireless radio multi sound system, and define unique machine code information respectively for each extension set audio amplifier in channel wireless radio multi sound system; 12) start main frame audio amplifier and each extension set audio amplifier, main frame audio amplifier sends the machine group code information of place channel wireless radio multi sound system to the extension set audio amplifier around it; 13) each extension set audio amplifier judges oneself whether to be in this channel wireless radio multi sound system according to the machine group code information received, if machine group code information is identical, then sends its machine code information to main frame audio amplifier; If machine group code information is not identical, then send the response signal of non-same channel wireless radio multi sound system; 14) main frame audio amplifier receives and preserves the machine code information of each extension set audio amplifier; 15) number of the number of machine code information that each extension set audio amplifier that the contrast of main frame audio amplifier receives feeds back and the extension set audio amplifier of place channel wireless radio multi sound system, if unanimously, then disconnects; If inconsistent, prompting channel wireless radio multi sound system breaks down, and disconnects.
Described step 2) comprising: 21) main frame audio amplifier carries out order sequence to the machine code information received; 22) connect each extension set audio amplifier one by one according to machine code information, measure the Distance geometry position of each extension set audio amplifier relative to main frame audio amplifier, each extension set audio amplifier is positioned; 23) location of the extension set audio amplifier of all machine code information has been judged whether, if so, termination routine, otherwise, continue to perform step 21).
Described step 22) comprising: 221) arrange a miaow head respectively in the left and right sides of main frame audio amplifier, two miaow heads are supported or opposed placement, and axis becomes 180 degree; 222) the extension set audio amplifier of a main frame audio amplifier machine code information wherein sends a distance test order; 223) this extension set audio amplifier is according to receiving and responding distance test order, and sends the voice signal of certain frequency; 224) volume of voice signal that main frame audio amplifier collects according to the miaow head of the left and right sides judges the left and right position of this extension set audio amplifier relative to main frame audio amplifier, and main frame audio amplifier gathers the distance of this extension set audio amplifier of this voice signal Time Calculation used relative to main frame audio amplifier according to miaow head.
Described step 223) in voice signal be the acoustic signals of intermediate frequency or low frequency.
Described channel wireless radio multi sound system is 5.1 sound channel wireless sound systems or is 7.1 sound channel wireless sound systems.
Beneficial effect of the present invention: the present invention is found range by the acoustic signals of intermediate frequency or low frequency, utilizes the size of audio amplifier to judge position, substantially increases the accuracy of the audio amplifier location in channel wireless radio multi sound system like this; In addition, the present invention utilizes the positioning result of each audio amplifier to be the output channel that its intelligent selection is suitable, simplifies and facilitate the installation of sound system.
Accompanying drawing explanation
Fig. 1 is workflow diagram of the present invention;
Fig. 2 is the audio amplifier position view of 7.1 sound channel wireless sound systems;
Fig. 3 is ranging localization schematic diagram calculation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated.
Channel wireless radio multi sound system of the present invention can be 5.1 sound channel wireless sound systems, also can 7.1 sound channel wireless sound systems or other multi-track radio sound system, the present invention is below only using 7.1 sound channel wireless sound systems as the example of setting forth, the audio amplifier distribution of 7.1 sound channel wireless sound systems as shown in Figure 2, it comprises a mid-main frame audio amplifier, two preposition extension set audio amplifiers, two mid-extension set audio amplifiers and two rearmounted extension set audio amplifiers (surrounding sound speaker), and a woofer (omitting in figure).Wherein, it is wireless for putting totally 6 extension set audio amplifiers before, during and after described, and mid-main frame audio amplifier and woofer are wired, and mid-main frame audio amplifier is as the transmitting terminal carrier audio amplifier of wireless sound system, and other 6 radio extension audio amplifiers are receiving terminal carrier audio amplifiers.
As shown in Figure 1, the loudspeaker box channel matching process of channel wireless radio multi sound system of the present invention comprises:
One, main frame audio amplifier is started, connect in turn each extension set audio amplifier, utilize unique coded message to match between each extension set audio amplifier and main frame audio amplifier respectively, in channel wireless radio multi sound system, each audio amplifier could realize man-to-man work between transmitting terminal and receiving terminal after needing to carry out coding pairing.
11) first, in definition channel wireless radio multi sound system, realize unique machine group code information of carrying out communication between main frame audio amplifier and each extension set audio amplifier, and define unique machine code information respectively for each extension set audio amplifier in channel wireless radio multi sound system.Wherein, machine group code information is that main frame audio amplifier sets by producer the system be kept in MCU memory when dispatching from the factory and matches code, it is by the identification that is used in channel wireless radio multi sound system and pairing, the machine group code information of also namely different channel wireless radio multi sound systems is different, only has between the identical main frame audio amplifier of machine group code information and extension set audio amplifier and just can carry out communication.Machine code information is also generally that each extension set audio amplifier sets by producer the receiving terminal authentication code be kept in MCU memory when dispatching from the factory, it will be used for transmitting terminal (main frame audio amplifier) to the identification (ID identification) of transmitting terminal (extension set audio amplifier) and control, and the extension set audio amplifier also namely with machine code information in the control command of main frame audio amplifier just can be communicated with.
12) start main frame audio amplifier and each extension set audio amplifier, main frame audio amplifier sends the machine group code information of place channel wireless radio multi sound system to the extension set audio amplifier around it.This step is equivalent to an initialized step, determines all audio amplifiers in same channel wireless radio multi sound system.
13) each extension set audio amplifier judges oneself whether to be in this channel wireless radio multi sound system according to the machine group code information received, if machine group code information is identical, then sends its machine code information to main frame audio amplifier; If machine group code information is not identical, then sends the response signal of non-same channel wireless radio multi sound system, or directly do not respond.This step is equivalent to the machine code information of registration each extension set sound in main frame audio amplifier, so that follow-up order control and Signal transmissions.
14) main frame audio amplifier receives and preserves the machine code information of each extension set audio amplifier.
15) number of the number of machine code information that each extension set audio amplifier that the contrast of main frame audio amplifier receives feeds back and the extension set audio amplifier of place channel wireless radio multi sound system, if unanimously, then disconnects; If inconsistent, prompting channel wireless radio multi sound system breaks down, and disconnects.Whether this step normally works for checking each extension set audio amplifier in channel wireless radio multi sound system, if all normally worked, then main frame audio amplifier can be subject to the machine code information of all extension set audio amplifiers
Two, measure the Distance geometry position of each extension set audio amplifier relative to main frame audio amplifier successively, each extension set audio amplifier is positioned
21) main frame audio amplifier carries out order sequence to the machine code information received.
22) connect each extension set audio amplifier one by one according to machine code information, measure the Distance geometry position of each extension set audio amplifier relative to main frame audio amplifier, each extension set audio amplifier is positioned.
Only explain for the range information and positional information of testing one of them extension set audio amplifier below, duplicating of other.
First, arrange a miaow head respectively in the left and right sides of main frame audio amplifier, two miaow heads are supported or opposed placement, and axis becomes 180 degree, and the design of miaow head is surveyed in main frame sound box pipeline, and it is outside that receiving plane points to casing, namely directly contacts with air, is beneficial to the sound wave collecting appearance.
Then, a distance test order is sent by the extension set audio amplifier of a main frame audio amplifier machine code information wherein.
Then, this extension set audio amplifier according to receiving and responding distance test order, and sends the voice signal of certain frequency, and voice signal the best is the acoustic signals of intermediate frequency or low frequency.
Finally, the volume of the voice signal that main frame audio amplifier collects according to the miaow head of the left and right sides judges the left and right position of this extension set audio amplifier relative to main frame audio amplifier, main frame audio amplifier gathers the distance of this extension set audio amplifier of this voice signal Time Calculation used relative to main frame audio amplifier according to miaow head, thus determine its relative to before main frame audio amplifier, in or after position.
Wherein, the step that the distance test of each extension set audio amplifier and position are determined is specific as follows, as shown in Figure 3,
After the main frame audio amplifier (transmitting terminal) of channel wireless radio multi sound system and each extension set audio amplifier (receiving terminal) complete pairing, start the receive path connecting first extension set audio amplifier (receiving terminal), the control command producing acoustic signals is required to one, start timer simultaneously, acoustic signals control command sends through main frame audio amplifier, is recorded as T1 during this period of time; First extension set audio amplifier (receiving terminal) receives wireless control signal, is recorded as T2 during this period of time; Extension set audio amplifier (receiving terminal) control DA output audio signal, the loudspeaker through extension set audio amplifier (receiving terminal) play out, and are recorded as T3 during this period of time; Miaow head receives the voice signal sent from extension set audio amplifier (receiving terminal), is recorded as T4 (due to two) during this period of time; Extension set audio amplifier sends interruptive command to main frame audio amplifier, timeing closing device simultaneously, be recorded as T5 during this period of time, wherein, the whole timing total amount of timer is Ts, time T4 between the transmitting terminal finally calculated and receiving terminal 2, T4 will be used for the actual range between computation host audio amplifier (transmitting terminal) and each extension set audio amplifier (receiving terminal).
Because the miaow head of two on main frame audio amplifier can receive the voice signal sent from extension set audio amplifier (receiving terminal) simultaneously, the present invention adopts preferential receipt processing mode, and main frame audio amplifier (transmitting terminal) only responds in two miaow heads and is preferentially received voice signal and one that produces interrupt signal.
After two miaow heads receive the voice signal sent from receiving terminal (extension set audio amplifier), volume detection is carried out through a process point two-way, the volume data of miaow head 1 is recorded as V1, the volume data of miaow head 2 is recorded as V2, the volume data of two the miaow heads finally calculated, will be used for judging receiving terminal (extension set audio amplifier) and the relative right position residing for transmitting terminal (main frame audio amplifier).
Wherein, main frame audio amplifier and this extension set audio amplifier two select between distance D=340*T4 rice, T4=Ts-(T5+T3+T2+T1), the difference V=V1-V2 of the wave volume that two miaow heads receive, when V is greater than 0, the relative position of receiving terminal and transmitting terminal is left; When V is less than 0, the relative position of receiving terminal and transmitting terminal is right.Hybrid ranging and volume data, first by judging that volume draws relative right position information, relative position information before, during and after then being drawn by ranging data, finally draw the channel information belonging to 6 receiving terminals (extension set audio amplifier).
23) location of the extension set audio amplifier of all machine code information has been judged whether, if so, termination routine, otherwise, continue to perform step 21), until the location of all extension set audio amplifiers is complete.
Three, be that it mates suitable output channel according to the locating information of each extension set audio amplifier and machine code.
Working mechanism of the present invention is as follows:
1) standard pendulum of channel wireless radio multi sound system according to 7.1 sound channel sound systems is put well, power on to each audio amplifier, enter preparation state;
2) pairing work program is started at main frame audio amplifier (transmitting terminal), main frame audio amplifier (transmitting terminal) and six extension set audio amplifiers (receiving terminal) of system complete pairing, and the machine code of extension set audio amplifier (receiving terminal) is preserved, carry out calculating sequence;
3) connect in turn first extension set audio amplifier (receiving terminal) according to extension set audio amplifier (receiving terminal) machine code, send a distance test order (generation voice command) through main frame audio amplifier (transmitting terminal);
4), after extension set audio amplifier receives wireless signal, the voice signal of certain frequency is sent through process;
5) two miaow heads on main frame audio amplifier receive voice signal, the volume of the voice signal that main frame audio amplifier collects according to the miaow head of the left and right sides judges the left and right position of this extension set audio amplifier relative to main frame audio amplifier, main frame audio amplifier gathers the distance of this extension set audio amplifier of this voice signal Time Calculation used relative to main frame audio amplifier according to miaow head, after completing the detection of six extension set audio amplifiers one by one, each extension set audio amplifier locating information accurately can be drawn;
6) main frame audio amplifier sends six groups of framing signals, and each extension set audio amplifier is selected to receive corresponding locating information according to the machine code of oneself, completes the Intelligent Matching of passage.
The foregoing is only better embodiment of the present invention, the present invention is not limited to above-mentioned execution mode, the structural modification that local is small may be there is in implementation process, if do not depart from the spirit and scope of the present invention to various change of the present invention or modification, and belonging within claim of the present invention and equivalent technologies scope, then the present invention is also intended to comprise these change and modification.
Claims (3)
1. a loudspeaker box channel matching process for channel wireless radio multi sound system, it is characterized in that, it comprises:
1) start main frame audio amplifier, connect in turn each extension set audio amplifier, utilize unique coded message to match between each extension set audio amplifier and main frame audio amplifier respectively, be specially:
11) define in channel wireless radio multi sound system and realize unique machine group code information of carrying out communication between main frame audio amplifier and each extension set audio amplifier, and define unique machine code information respectively for each extension set audio amplifier in channel wireless radio multi sound system;
12) start main frame audio amplifier and each extension set audio amplifier, main frame audio amplifier sends the machine group code information of place channel wireless radio multi sound system to the extension set audio amplifier around it;
13) each extension set audio amplifier judges oneself whether to be in this channel wireless radio multi sound system according to the machine group code information received, if machine group code information is identical, then sends its machine code information to main frame audio amplifier; If machine group code information is not identical, then send the response signal of non-same channel wireless radio multi sound system;
14) main frame audio amplifier receives and preserves the machine code information of each extension set audio amplifier;
15) number of the number of machine code information that each extension set audio amplifier that the contrast of main frame audio amplifier receives feeds back and the extension set audio amplifier of place channel wireless radio multi sound system, if unanimously, then disconnects; If inconsistent, prompting channel wireless radio multi sound system breaks down, and disconnects;
2) measure the Distance geometry position of each extension set audio amplifier relative to main frame audio amplifier successively, each extension set audio amplifier positioned, is specially:
21) main frame audio amplifier carries out order sequence to the machine code information received;
22) connect each extension set audio amplifier one by one according to machine code information, measure the Distance geometry position of each extension set audio amplifier relative to main frame audio amplifier, each extension set audio amplifier is positioned, is specially:
221) arrange a miaow head respectively in the left and right sides of main frame audio amplifier, two miaow heads are supported or opposed placement, and axis becomes 180 degree;
222) the extension set audio amplifier of a main frame audio amplifier machine code information wherein sends a distance test order;
223) this extension set audio amplifier is according to receiving and responding distance test order, and sends the voice signal of certain frequency;
224) volume of voice signal that main frame audio amplifier collects according to the miaow head of the left and right sides judges the left and right position of this extension set audio amplifier relative to main frame audio amplifier, and main frame audio amplifier gathers the distance of this extension set audio amplifier of this voice signal Time Calculation used relative to main frame audio amplifier according to miaow head;
23) location of the extension set audio amplifier of all machine code information has been judged whether, if so, termination routine, otherwise, continue to perform step 21);
3) be that it mates suitable output channel according to the locating information of each extension set audio amplifier and machine code.
2. the loudspeaker box channel matching process of channel wireless radio multi sound system according to claim 1, is characterized in that, described step 223) in voice signal be the acoustic signals of intermediate frequency or low frequency.
3. the loudspeaker box channel matching process of channel wireless radio multi sound system according to claim 1, is characterized in that, described channel wireless radio multi sound system is 5.1 sound channel wireless sound systems or is 7.1 sound channel wireless sound systems.
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| CN102595317B (en) * | 2012-02-27 | 2015-11-18 | 歌尔声学股份有限公司 | A kind of communication signal self-adapting transmission method and system |
| CN104750055B (en) * | 2013-12-31 | 2017-07-04 | 广州励丰文化科技股份有限公司 | Based on the panorama multi-channel audio control method for becoming rail audio-visual effects |
| CN104750058B (en) * | 2013-12-31 | 2017-09-26 | 广州励丰文化科技股份有限公司 | Panorama multi-channel audio control method |
| CN104135704A (en) * | 2014-07-11 | 2014-11-05 | 黄天旭 | Sound box networking method and sound box network |
| CN104185132B (en) * | 2014-09-02 | 2019-02-01 | Oppo广东移动通信有限公司 | Channel configuration method, intelligent terminal and corresponding system |
| CN104507005B (en) * | 2014-12-05 | 2017-10-13 | 广东欧珀移动通信有限公司 | The packet control process and system of wireless sound box |
| CN105072553B (en) * | 2015-08-31 | 2018-06-05 | 三星电子（中国）研发中心 | The audio amplifying method and device of stereo set |
| CN105516855A (en) * | 2015-12-23 | 2016-04-20 | 联想(北京)有限公司 | Method for playing audio file |
| CN106792365B (en) * | 2016-11-23 | 2020-10-02 | 广东小天才科技有限公司 | Audio playing method and device |
| CN106878915B (en) * | 2017-02-17 | 2019-09-03 | Oppo广东移动通信有限公司 | Control method, device and the playback equipment and mobile terminal of playback equipment |
| CN106686519B (en) * | 2017-03-09 | 2019-04-09 | Oppo广东移动通信有限公司 | The method, apparatus and terminal of the stereo pairing of audio-frequence player device |
| CN107801132A (en) * | 2017-11-22 | 2018-03-13 | 广东欧珀移动通信有限公司 | A kind of intelligent sound box control method, mobile terminal and intelligent sound box |
| CN110677771A (en) * | 2019-11-05 | 2020-01-10 | 常州听觉工坊智能科技有限公司 | Wireless multi-channel sound system and automatic sound channel calibration method thereof |
| CN111757171A (en) * | 2020-07-03 | 2020-10-09 | 海信视像科技股份有限公司 | Display device and audio playing method |
| CN112083379B (en) * | 2020-09-09 | 2023-10-20 | 极米科技股份有限公司 | Audio playing method and device based on sound source localization, projection equipment and medium |
| WO2022160918A1 (en) * | 2021-02-01 | 2022-08-04 | 海信视像科技股份有限公司 | Display apparatus and multi-channel audio device system |
| CN112911496A (en) * | 2021-03-26 | 2021-06-04 | 潍坊歌尔电子有限公司 | Pairing method of sounding components, audio system and readable storage medium |
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| JP2002191099A (en) * | 2000-09-26 | 2002-07-05 | Matsushita Electric Ind Co Ltd | Signal processor |
| CN2580717Y (en) * | 2002-09-26 | 2003-10-15 | 原世平 | Wireless transmission type surrounding combined acoustic equipment |
| EP1596538A1 (en) * | 2004-05-10 | 2005-11-16 | Sony Ericsson Mobile Communications AB | Method and device for bluetooth pairing |
| ATE477687T1 (en) * | 2005-06-09 | 2010-08-15 | Koninkl Philips Electronics Nv | METHOD AND SYSTEM FOR DETERMINING THE DISTANCE BETWEEN SPEAKERS |
| CN101087485B (en) * | 2007-07-11 | 2010-05-19 | 华南理工大学 | A transmission control method of multi-sound source remote distance wireless sound box and its device |
| CN101533090B (en) * | 2008-03-14 | 2013-03-13 | 华为终端有限公司 | Method and device for positioning sound of array microphone |
| CN101282592A (en) * | 2008-05-15 | 2008-10-08 | 华硕电脑股份有限公司 | Acoustics system with audio field adjusting function as well as method for adjusting audio field |
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