CN102855923B - Intelligent music play device - Google Patents

Abstract

Intelligent music play device, relates to music player devices.The present invention solves music packet and plays the technical problems such as management, software regulation and control volume, overlength music automatic cutting, suite duplication and music program " substitute " temporarily, propose a series of lifting automatic broadcaster performance and simplify the technical measures of operation, the intelligence degree of broadcasting equipment management is greatly improved, broadcast control workload is greatly lowered, for the colony of school, dance hall, office, family and hobby song and dance provide performance more preferably, manage simple intelligent broadcast instrument.

Description

Intelligent music play device

Technical field: the present invention relates to music player devices, plays the instrument of music the most automatically.

Background technology: at kindergarten, in school, often to use the situation playing one group of music continuously, such as, play one Organize the music relevant with flagraising, or play one group of athletic meeting music, play one group of lounge music；But general broadcast instrument is used Come very inconvenient, can only play with meeting a head by order one head of recording, want to change one group of (overlapping) music just inconvenience, separately have SD card or the USB flash disk of backup are changed and just may be used.

Present various dance hall and specialty dance hall be all engage professional to play music, outdoor folk dance colony, It is typically all colony director or its assistant carries " deck " or VCD machine adds power amplifier and broadcasts, during this, select dance Song, replacing video disc or rewinding are pretty troublesome, change musical time the longest, also easily occur misplacing dance music.Recently market also occurs MP3 player, but it there is also inconvenience program request, can only play with meeting a head by order one head of recording, and the defects such as set are changed in inconvenience, Use very inconvenient.

Summary of the invention:

It is an object of the invention to provide one can select from music libraries music set up " music group " (or claim " become Set music " or " file "), music group can be selected intelligently to play out the music player of (playing group's music), Solve trouble above-mentioned, and combine school, dance hall is actually needed the intelligence providing performance more perfect and plays instrument.

The object of the invention is realized in:

Set up by single chip control unit and intelligent broadcast system that music unit is core, in music unit Use moveable magnetic disc (SD card or USB flash disk) do music storage, music storage is recorded into by certain audio compression format (as MP3, MP4) computer network music after compression, the music and relevant signal language or the advertising slogan that need containing dancing party, school (are united later Claim " music "), music broadcasting order in music storage is just as the music number (code) of this music；Utilize single-chip microcomputer certainly Electrically erasable current failure memory type bin (EEPROM) that body has or the electrically erasable current failure memory type memorizer supporting with single-chip microcomputer, Setting up several timing routine memory blocks, in addition, we go back to set up in EEPROM and are similar to timing routine storage Multiple " music group " memory block in district, is prone to display and the group number (code) of memory to each music group one, and with soft Part sets up the definite relation of group number and this address, memory block；" music group " is one group of music inventory that can sequentially carry out broadcasting, " music " in music inventory is the music number of this music, and a set of journey editing " music group " to be compiled by single-chip microcomputer Sequence, the write containing music code, erasing, the program such as duplication, containing the data between single-chip microcomputer RAM memory block to eeprom memory Transmission program；Current music group to be set up group number memorizer, compile a set of by the order in " music group " from music store Device is selected music and is played out the program of (playing continuously or program request)；In the timing routine of this device, to compile and call into timing The program that certain " music group " whole group of (complete) music plays out, i.e. realizes timing " calling music group music to play out " The program of (being later called for short " playing group's music "), its way is: selects one mark " position " (or with special " byte ") Representing " playing group's music " state, when entering " playing group's music " state, " playing group's musical logo position " puts 1；With one Task that group and the high-order unduplicated digital code representative of music number " play group's music ", i.e. with a high-order music scope it Outer special digital code represents " playing group's music " function, thus can avoid obscuring, again with " broadcasting music " task " playing group's music " can be programmed and command operating by the task digitized of " playing group's music "." broadcasting Put group's music " under state, single-chip microcomputer finds the music inventory of correspondence according to the group number in current music group group number memorizer, Sequence number from music inventory finds corresponding music number again, and then controls music unit by the correspondence in music storage The music of music number is taken out, and send special decoding chip to be decoded, and the digital music signal decoded passes through digital to analog converter It is converted into analogue signal, then carries out preposition amplification, then utilize the power amplifier of the machine or carry out power by supporting power amplifier and put Greatly, then drive speaker to broadcast.In order to be smoothed out packet programming, in assembly of the invention, there is display " music group " group Number, show selected music display device of sequence number in " music group ", have corresponding display driver circuit, write phase The display software answered.

Apparatus of the present invention solve music and automatically play the correlation technique of the packet broadcasting in control, many including storing simultaneously Music group, the program request technology of music group and music are called in technology, timing that set music group technology, music group edit Combination application technique between group, makes this device realize playing the batch processing of music, " complete set renews ", relative to the most only Can carry out, by recording order, the known MP3 player that broadcasts, this device is equivalent to tens of MP3 players, or quite In a MP3 player plus dozens of portable U disk, and use more flexible convenience.Owing to the music in music group can Call with whole group of timing, can arbitrarily convert music group, and the operation of the editor of music group and conversion is extremely simple, just Make the maintenance of the automatic broadcasting system set up with this device for core, work is more convenient in management, more save trouble, and even realizes unmanned value Keep (exempting from by broadcast operator) broadcast, thus be greatly saved human resources；In terms of broadcast effect, this device is used preferably to expire The individual demand of foot different groups, can give the more feeling of freshness of audience；In a word, promote this device will make general school, community, The broadcasting in dance hall is more intelligent, more perfect, and cost of serving is lower.

It is described further below in conjunction with embodiment:

Fig. 1 is a kind of theory diagram of apparatus of the present invention.In figure, MCU is single chip control unit center, by single-chip microcomputer and Its periphery supporting component form, EPR is the electrically-erasable memory EEPROM supporting with MCU, be used for store temporal sequence time Between table and the music inventory of each " music group ", if single-chip microcomputer self is with internal current failure memory memory, such as embodiment STC89C54, then can save independent EEPROM.SD is music storage, is used for storing music, selects in the present invention Moveable magnetic disc (SD card or USB flash disk) is as music storage, in order to they are pulled out to be inserted in computer and carry out by user easily Editor: MP is the online music processing center of music unit, and it includes computer network music decoding chip and by solution number out Word signal is converted into the digital to analog converter of analogue signal, and some periphery supporting components of necessity, is responsible for fix by one The digital information (MP3, MP4 etc.) of appointment music after formula compression recalls from music storage, carries out decompression and contracts and be reduced into Analogue signal.MP and SD forms the music unit controlled by MCU, and it performs the instruction of MCU in time by music storage Specify music to be decoded with form to change, then the music analogue signal after conversion is delivered to audio signal processor MUP and enter The further Audio Processing of row and prime are amplified, then are transported to power amplifier (power amplifier) PE and are amplified, and are then dispensed into sound The speaker such as post, audio amplifier plays out.Power amplifier PE is put in a system of the invention, is suitable only for the situation of small-sized use occasion, For general dance hall and large-scale dance hall, required musical power is quite big, and power amplifier should be independent corollary equipment.The electricity of PE Source is controlled by MCU, and when not playing music for a long time, MCU can cut off the power supply of automatic PE.

In Fig. 1, INP represents the button signal input block of input command information；DIR is display unit, containing charactron or Liquid crystal display and drive circuit thereof.

Temporal shift broadcast scenarios may be needed in view of actual site of deployment, the present invention adds in host computer system nothing Line receiver of remote-control sytem WLR, its supporting remote controller WLS, such host the most just can any position at the scene Put and automatic playing program is done a little temporal shift, such as certain dance music of replaying, suspend, strengthen minimizing volume etc..Wireless remote control receives Device WLR can buy finished product on the market, as long as arranging several input terminal and receiver of remote-control sytem lead-out terminal in host computer system It is connected, then with inquiring about or carrying out information processing by the mode interrupted as processing conventional push button.

Successful Application of the present invention it is critical only that writing of software.Actual software include show software (display week, time Between, group number, sequence number and music number), timing routine software, user select music from music storage and be stored to the journey of " music group " Sequence, from the RAM of chip, information is write the program EEPROM, from softwares such as EEPROM reading program and request music, these Mostly software is known software, and it will not go into details here, is simply illustrated by innovative part of the present invention.

First have to determine the size and number of " music group " memory block, consider: music group should make according to difference Need with occasion, different crowd or different application purpose divides, such as music, work-break exercises music, playground music, leisure before working Music, square dance music, social dancing music etc., for dance hall, social dancing music can be finished again a few set and play in turn, To improve feeling of freshness；Square dance music also should according to different time or according to teaching needs be grouped, on the same day in may By many group music, therefore the quantity of music group is wanted enough, to select 50 in embodiment.The size of music group to consider The time play continuously, such as, put the square dance music in an afternoon, put the social dancing music of a whole night, embodiment is selected 99, two figure places show

Device can show, the most enough.Quantity according to music group and size, select suitable EEPROM.

General timing broadcasting procedure has two parameters: the timed task in master variable time and corresponding moment is intended playing sound Happy music number, the code of music number is generally the set of number of two byte representations, if it represents symbol is yyH (high-word Joint) and yyL (low byte), such as the yyH=03H, yyL=56H of No. 356 music.Apparatus of the present invention select a music number (quantitative design storing music in embodiment is first less than 0999, and yyH numeral exists for certain number outside upper byte digital scope Between 0-09, therefore can be selected for OAH) represent " playing group's music ", yyL thereafter represents the group number of music group, such as OA08 Just represent the group's music playing the 8th group, thus the instruction of " playing group's music " is become as playing certain song Set of number, easily it can be timed program and be programmed and command operating.

Automatically broadcasting group music, usually requires that connecing order one song in music group connects (connecting of a bent broadcasting continuously Broadcast), chain broadcast program can the method as shown in Fig. 2 block diagram be write.In figure, LbQ is to enter chain broadcast group musical logo；ZH is Music group group number, XH is certain music sequence number (broadcast sequence number) in music group list；EPRi is that certain music group exists The information in memory block in EEPROM, RAM is the RAM memory block in single-chip microcomputer, and this is the convenience that multiple music group is public The memory block of read-write, EPRi → RAM meaning is that the music inventory of certain number music group existed on EEPROM is copied to monolithic Machine internal SRAM memorizer；XHmax is the maximum of sequence number, and XH >=XHmax means that the space of this music inventory is whole Looked into, then can not find song to be play.

Disturb to reduce the noise of consumable accessory volume potentiometer, simplify circuit, and also to remote control adjustment volume Needing, without volume potentiometer in apparatus of the present invention, and use operation button to regulate volume, its Principle Method is: use existing Playing the volume value of music reading of selling on the market, the MP3 module with useful instruction regulation volume (has holding Row software instruction changes the circuit of volume), read its volume change scope, and convert thereof into the numeral being prone to display and using V, is converted in embodiment, is shown as 0 to 90 grade, then it compared with volume preset value V0, bigger than normal, the most right MP3 module sends the instruction once reducing volume, and vice versa, so repeats, until the volume value read equal to preset value is Only, which achieves the broadcast volume of reality from motion tracking volume preset value, and volume preset value is logical under adjusting volume status Crossing what operation button was increased or decreased, namely this device achieves the function adjusting volume with operation button.Fig. 3 be by Button adjusting volume theory diagram.

Dancing party music have individual feature to require exactly per song is not too long, oversize, dance hall customer can feel exhausted and be weary of, It is generally acknowledged control at about 4 minutes proper.But, the many music downloaded from the Internet, its reproduction time all exceeds State boundary, for solving the inconvenience that brings of overlength, this device utilizes above-mentioned volume control principle, develops and automatically weakens by volume Method realizes the fixed length diminuendo closing function of overlength music, and to meet the special requirement of dancing party, its principle is as shown in Figure 4.This merit Can will use, so individual switch etc device or a kind of special push-botton operation should be had by not all model all situations Allowing user select as one sees fit, in figure, xcQ=1 represents the mark that there is a need to music limit for length, and in figure, " time delay " is to reduce according to volume Speed select, the most desirable about 1～2 second.

Also according to principle above, this device have also been devised " hypnosis music " function: we will be suitable for the sound of hypnosis Happy the light music of the beneficially hypnosis (and with magnetic special recording) compiles into specifying special music group (such as 50th group) inner, when to play the 50th group group music, the most automatically start the slow fade-down function of volume: volume is with the slowest Speed gradually weaken, until volume is just dropped to zero, when volume reduces to 0 by a very long time (such as half an hour or one hour) Time, turn off this group music.

Apparatus of the present invention have overlaps timing routine more, adds packet playing function, and it is many convenient to bring to user, but set, Group is many, and later programing work amount also becomes greatly.Our research finds to remain with between difference set, group many identical key elements, The program of such as school's weekend (Friday) and Thursday the most just the same, Friday, the most a little classes are over；Dance When can change dance music, major part dance music can be retained constant, only need to more the amount of tailing off sensitivity dance music, at least opening remarks and dancing party terminate Language is the same, and the Changing Pattern (such as rumba → fast three → Jitterbug ...) of dancing classification can also keep constant；In order to subtract Light user programing work amount, writes in apparatus of the present invention and replicates the soft of a whole set of timing routine and whole music group music inventory Part, it is achieved that whole group, the duplication of a whole set of program, i.e. realizes mutually answering between each set timing routine and between music group System.Substantially, here it is the information of certain memory block on EEPROM is copied to another memory block, its functional-block diagram is shown in Fig. 5, in figure, " EPRy → RAM " is will to provide the information of the source music group (or source timing routine) of message sample from EEPROM Reading out, then it is write in single-chip microcomputer RAM memory, " RAM → EPRm " is that the information from single-chip microcomputer RAM memory reads out Writing in target music group (or target timing program) in EEPROM, the most set of copy command is grasped generally by certain Input as key, cause the overall loss of target music group data in order to prevent from touching button by mistake, introduce in software and prolong Time and twice inquiry " have the most complete copy command？", to avoid maloperation to make troubles.

" temporarily specifying replacement " (timing routine or music of music group to be used or timing routine in practical application The temporary changes of group), such as, the music that the one group of outdoor sport of normal play of setting-up exercises during the break time science school is relevant, but run into rainy , just should not play the music that outdoor sport is relevant, and one group of indoor should be play and do a music (setting-up exercises to music time of health protection behaviour Interim with " eye exercises music group " replacement " square setting-up exercises during the break music group ")；And for example, the timing every night of the most outdoor dance hall plays one Group dance music, but run into and rain or there is special applications etc. on square, just should break dance music, and change into regularly playing " tonight Dancing party suspends for some reason ... ".We add " temporarily specifying replacement " function the most in a program in example 2, and Fig. 6 is a kind of " one To substitute in fixing time " embodiment, " specify replacement instruction " in embodiment is to be pressed remote controller by management personnel temporarily Certain button send, in figure, TDQ is the mark of " temporarily to substitute (changing set number or group number) ", and finger refers to replacement TDQ is put 1 after order, it is no longer necessary to (such as become a fine day) during replacement and will send instruction by TDQ reset (setting to 0)；Appointment starts (stopping) performing the time, refers to start (stopping) and performs the interim time becoming set, the most under normal circumstances 19: 30 should Commence play out dance music, but do not hold dancing party rainy day, it should in advance repeatedly notify everybody, such as, started from 18 o'clock minute several times Notice, " Starting Executing Time " can elect 18: 0 as；T is this device clock time.

The chance applying apparatus of the present invention when individual or small collectives outdoor activity is also a lot, the class of such as kindergarten or school Level outdoor activity, the square dancing party held in vacant lot, streets and lanes, this dancing party is the most small, and required musical power is not bery Greatly, but mobility is big, considers their needs in the present invention, and the model of a kind of pocket of specialized designs uses small-sized for this , portable cabinet, and may not have alternating current power supply in view of use occasion, be designed to AC/DC to this type, i.e. Directly can also power with battery use, it is also contemplated that by the power driving circuit of speaker and necessity thereof and apparatus of the present invention group Being contained in a casing, so, when going out, a portable instrument is the most permissible, the easiest.In order to extend the use longevity of battery Life, this device has an alternating current power supply testing circuit, when the display screen detected is not in the case of having alternating current power supply, the most not Carrying out showing (secretly screen), the only following period of time after having people's pressing operations button shows a little while, and its software engineering is permissible It is achieved in: when there being push-botton operation, sets up a button mark, through time delay in several seconds (time delay or in program when clock is walked As time delay software delay) after, remove button mark, then display software in inquire about, when find alternating current power supply without electricity (circuit Power detecting loop to be had in design), when also there is no push-botton operation, do not show.Certainly, LCDs is used, it is possible to reach To the purpose of economize on electricity, simply its brightness is typically not as luminous tube (LED) digitron display screen.

Apparatus of the present invention are also readily applicable to personal office and family, in order to provide more preferably for user in this case Service, apparatus of the present invention devise " Mytip function " for personal use, even if this device has carrying of long time period concurrently Show function.Timing routine is divided into long period (with year as cycle period) timing and short cycle (with day as circulating cycle by us Phase) regularly, and manage to allow long period timing routine and short cycle timing routine deposit dual-purpose.Solve this Principle Method required Be such that in the timing routines of many sets, we determined that general procedure be all day circulation (with time be divided into time parameter, with certain First or certain group music is task), but rigid appointment a set of (formulating the 9th set timing routine in embodiment) is long period timing Program, its time parameter is the moon, day, and the music that or certain group first with certain acquires a special sense is (the lover's prattle such as Valentine's Day as task Recording, commemoration day birthday congratulates, with the birthday, group's music that word and " happy birthday to you " sing), its programmed method short cycle Timing routine the same (known technology).The execution of long period timing routine is designed such that the set time of every day is (such as every day 8 are just, can be more than once), with the moon, day as time parameter, inquire about long period timing routine (the 9th of embodiment Set), as being found to have playing task, i.e. play.

Accompanying drawing illustrates:

Fig. 1 is a kind of theory diagram of apparatus of the present invention；

Fig. 2 is automatically to play group's music software theory diagram；

Fig. 3 is to adjust volume software principle block diagram without potentiometer；

Fig. 4 is that software block diagram is closed in the fixed length diminuendo of overlength music；

Fig. 5 is suite, music group information duplication software principle block diagram；

Fig. 6 is program, music group " replacement temporarily " software principle block diagram.

Detailed description of the invention:

Apparatus of the present invention propose the intelligent broadcast device of relatively General Promotion broadcast instrument performance, the product implemented according to the present invention Concrete structure mode can have multiple, and the needs of different user are different, for example, it is desired to the individual of hypnosis music, the most just Need not overlength music automatic limit for length closing function, therefore, the concrete grammar implementing the present invention is to be filled according to the present invention by factory The method and structure scheme put, produces different size, different structure mode, the intelligent broadcast instrument of difference in functionality, such as, is applicable to Individual, family use minicomputer, it is adaptable to dance hall use dance hall type, it is adaptable to unmanned dance hall intelligent, be suitable for Pocket in square dance, it is adaptable to the base type of school.

Claims (8)

1. an automatic broadcaster, by single-chip microcomputer, music storage part, time showing device and be used for input command information A set of button forms, and feature is:

(1) electrically erasable in single chip control unit, stop setting up multiple " music group " memory block in the memorizer of battery powered memory With multiple timing routine memory blocks, storing one group of music inventory in each " music group " memory block, each " music group " has One group number, sets up the definite relation between group number with corresponding " music group " address, memory block with software；

(2) have and can show the display device of " music group " group number and corresponding display driver circuit；

(3) single-chip microcomputer is composed of the program editing " music group " music inventory, has been composed of continuously " playing group's music " Program.

The most according to claim 1, device, is characterized in that being composed of the software controlling volume, has execution software instruction to change sound The circuit of amount, is increased or decreased volume by operation button.

The most according to claim 2, device, is characterized in that the method weakened with volume automatic slowly realizes broadcasting of hypnosis music Put and close.

The most according to claim 1, device, is characterized in that writing into a whole set of timing routine of duplication and whole music group music be clear Single software, it is achieved the mutual duplication between each set timing routine and between music group.

The most according to claim 1, device, is characterized in that timing routine divides long period timing routine and timing of short cycle journey Sequence, both also use.

The most according to claim 1, device, is characterized in that devising " temporarily specifying replacement " program of timing routine.

The most according to claim 1, device, is characterized in that pocket made by instrument, has an alternating current power supply testing circuit, Under alternating current power supply not electric power thus supplied, display screen does not works at ordinary times, only shinny in the short time after having people to press operation button.

The most according to claim 1, device, is characterized in that having the display that can show music in " music group " inner sequence number Part and corresponding display driver circuit.