CN201127030Y

CN201127030Y - Teaching, entertainment, network electronic music system based on USB interface

Info

Publication number: CN201127030Y
Application number: CNU2007200537820U
Authority: CN
Inventors: 肖宁杰
Original assignee: Yang Taoran
Current assignee: Yang Taoran
Priority date: 2007-07-06
Filing date: 2007-07-06
Publication date: 2008-10-01
Anticipated expiration: 2017-07-06

Abstract

The utility model discloses a network electronic music system for teaching and amusement based on USB interface, and belongs to the field of electronic music and communication. The system includes hardware system and software system. The hardware system includes USB interface unit, an MCU unit, a key scanning unit, a driving unit of key corresponding lights. The software system includes USB communication module, network communication module, channel selecting and control module, MIDI playing and recording module, game module and teaching module. The study function of the utility model is capable of parsing MIDI files abundant on the network, then driving light below corresponding key, so that user can play following the luminous light. The game function is capable of achieving corresponding effect such as displaying entire image and eliminating sliding block when user presses accurate key in appropriate time span. The network interaction function is capable of making music lovers at different areas form bands to play.

Description

A kind of USB interface-based teaching, amusement, network electronic music system

Technical field

The utility model relates to electronic music field (mainly being the MIDI aspect) and the communications field (usb communication and tcp/ip communication), specifically is a kind of electronic music system with network interdynamic and teaching, amusement function based on usb communication.

Background technology

There have been at present many companies and individual to make the software relevant in the world with electronic music, wherein relatively typical aspect amusement, making, broadcast, teaching, do to such an extent that reasonablely have respectively:

1. amusement: Korea S Hanseulsoft company is the formal free game software " VirtualOrchestra Studio " that has stopped upgrading that release, present (being called for short VOS) in 1999.

2. make: Cakewalk, the Overture of GenieSoft of Twelve Tone Systems company.

3. play: VanBasco ' the s Karaoke Player that Daniel Pustka and Bastian Tugemann write.

4. teaching: the solfeggio software Auralia of the Australian RISING of software vendor.

But their deficiency is also clearly:

1. function singleness, the diversity that can not meet consumers' demand;

2. they do not use powerful now, popular computer network communication technology and carry out amusement, teaching and recreation;

3. recreation, amusement function comparatively are short of;

4. instructional function lacks interactive.

Also there are other companies to make the hardware relevant, mainly comprise two kinds with electronic music:

1. has MIDI keyboard Pitchbend Wheel, dynamics inducing function, that can communicate with computer sequencer software.Their price is too expensive, is not easy to popularize popular.

2. the user's indication that can follow lamp comes the electronic organ of playing music.But their software is powerful inadequately, only can utilize the several first melody of user-defined format to impart knowledge to students, and can not utilize present huge MIDI file resource storehouse, and its price is also very expensive.

The utility model content

The utility model provides a kind of implementation of electronic music software and hardware system, this system cost is cheap, and it can not only make electronic music, and has abundant teaching and amusement function, especially its network communication function more makes people can cross over the space and carries out interaction.

USB interface is a Peripheral Interface the most general on the PC, except plug and play, also can provide the DC power supply of 5V.And the tcp/ip communication agreement is popular and the most powerful communication protocol in the present the Internet, and it can allow the people of various places can carry out to more convenient and quicker information interchange.

This electronic music system with network interdynamic and instructional function based on usb communication comprises hardware system and software systems.Hardware system comprises the driver element of the corresponding lamp of usb interface unit, MCU unit, key scanning element and key; Software systems comprise that master control module, usb communication module, network communication module, channel selecting and control module, MIDI play and record module, MIDI file interface module, game module and teaching module.

For hardware system:

Wherein said MCU unit and described usb interface unit link;

Wherein institute MCU unit and described key scanning element link;

Wherein said MCU unit links with the driver element of the corresponding lamp of described key;

For software systems:

Wherein said master control module and usb communication module link;

Wherein said master control module and network communication module link;

Wherein said master control module and channel selecting and control module link;

Wherein said master control module and MIDI play and record module and link;

Wherein said master control module and MIDI file interface module link;

Wherein said master control module and game module link;

Wherein said master control module and teaching module link.

Interface for the software and hardware linking:

The usb communication module of the software systems among wherein said usb interface unit and the described PC links;

For hardware system:

Described MCU unit is 8 single-chip microcomputers of a slice, and its function has two: one, sends to the driver element of the corresponding lamp of described key after the packet that PC is transmitted is resolved; The 2nd, read the state information of described key scanning element, will send to described usb interface unit after its packing then.

Described usb interface unit comprises that USB interface and USB and UART exchange chip, and its function is to be that the UART form sends the MCU unit again to the data conversion that PC transmits, and the data conversion that the MCU unit can be transmitted simultaneously is that the USB form sends to PC again.

Described key scanning element comprises push-button array and the parallel port commentaries on classics serial ports shift register of being made up of conductive rubber, and its function is that parallel key information is sent to described MCU unit by serial line interface.

Described LED driver element comprises the shift register of LED luminous tube and serial input and line output, and its function is the serial data that described MCU unit transmits to be transferred to and line output drives corresponding LED then and lights.

For software systems:

The function of described master control module provides the data structure of a kind of MIDI agreement in internal memory, reads information wherein and supplies MIDI to play and record module, MIDI file interface module rewriting information wherein for other each modules.

The function of described usb communication module be with hardware system in usb interface unit communicate, and contain fault tolerant mechanism, promptly abandon the packet of byte loss.

The function of described network communication module is that the event processing module with multiple pc links up, and carries out data communication.

The function of described channel selecting and control module be select to record the passage of MIDI and when playing the MIDI file each passage in 16 passages of control sounding whether, whether light a lamp.

It is progress, speed, the transposition of the broadcast of control MIDI file that described MIDI plays with the function of recording module, and will send the master control module with the melody that keyboard is recorded to.

The function of described MIDI file interface module is that the MIDI data structure in the master control module is write the MIDI file, and it resolves to the data structure of using for the master control module with the MIDI file that read.

Described game module comprises the slide block game module that disappears, picture arrangement game module and song synchronous playing module.

The described function that disappears the slide block game module is the slide block that the in progress note of the passage of conductively-closed sound is converted into the whereabouts, and the player should press corresponding key when slide block drops to the bottom, and the button time is accurate more, and mark is high more.

The function of described picture arrangement game module is that total note number of establishing the passage of conductively-closed sound is N, one secondary free picture is divided into the N piece, note of the every bullet of player, will a picture appear with certain effect (fly into, shutter, mosaic etc.), when bullet finished a first song, whole pictures occurred thereupon.

The function of described song synchronous playing module be the note of this head song by after in the correct bullet, corresponding song is played out, behind the intact first song of correct bullet, song also correspondingly plays back.

The function of described teaching module provides a kind of have very strong interactive music theory knowledge learning platform and coaching platform, comprising scale study, chord explanation, impromptu accompaniment study course, melody distributed practice, identification pitch, identification melody, identification musical instrument.

Description of drawings

Fig. 1 circuit connection diagram;

Fig. 2 circuit diagram;

Fig. 3 software system structure figure;

Fig. 4 MCU element circuit figure;

Fig. 5 usb interface unit circuit diagram;

Fig. 6 led circuit figure;

The driver element circuit diagram of the corresponding lamp of Fig. 7 key;

Fig. 8 key circuit figure;

Fig. 9 key scan chip circuit figure.

Figure 10 system connection layout;

Figure 11 connection layout in kind.

Specific embodiments

Below in conjunction with description of drawings specific embodiments of the present utility model.

Figure 1 shows that circuit connection diagram of the present utility model, comprise usb interface unit, MCU unit, key scanning element, the driver element of the corresponding lamp of key.The function of usb interface unit is to finish the exchanges data of PC and MCU.The key scanning element is preserved wait MCU unit with key-press status information and is read.The driver element of the corresponding lamp of key is lighted the corresponding lamp of data transaction rear drive that MCU transmits.

Figure 2 shows that circuit diagram of the present utility model, described MCU unit is made of the ATMEGA48 single-chip microcomputer, the crystal oscillator of external 11.0592M, as shown in Figure 4; Described usb interface unit is made of CH341, and it is that a slice USB changes serial port chip, needs the crystal oscillator of an external 12M, as shown in Figure 5; The driver element of the corresponding lamp of described key is made of 49 LED and 6 74HC595, as Fig. 6 and shown in Figure 7; Described key scanning element is made of 49 buttons and 6 74HC165, as Fig. 8 and shown in Figure 9.Above Fig. 4 to Fig. 9 is the enlarged drawing of each functional circuit of Fig. 2 way circuit figure.

Figure 3 shows that software system structure figure of the present utility model, each module reads required MIDI data from the master control module, realizes function association separately.

Figure 10 shows that system of the present utility model connection layout, comprise that network connects.After PC end started this software, software can be sent out the one query command packet in one second by the usb communication module, then thought and did not connect hardware if confiscate to answer; After if hardware connects the USB interface of PC, can directly obtain power supply from usb bus, MCU starts working the unit, can respond behind the querying command packet of receiving PC and give PC.If receive the driver element that pass to the corresponding lamp of key after MCU behind the packet of lighting a lamp of PC can packet resolves.The MCU unit also ceaselessly reads key-press status information, sends to usb interface unit and pass to PC again after finding key information can not to be packed simultaneously key-press status and last time.Event processing module is received and is just gone to drive channel selecting behind the key information packet and control module is sent corresponding sound.

After the user selected mode of learning, channel selecting and control module began to resolve study song MIDI, then data are sent to hardware system to light corresponding lamp by the usb communication module, and the user follows the lamp bullet to get final product.

After the user selects game mode, as selecting song synchronous playing pattern,, play to such an extent that also play soon soon just after the note of user's bullet is correct, play out corresponding song, play to such an extent that slow phase should also be play slowly.

After the user selects network interconnection pattern, every PC can be sent to MIDI instruction separately on other the PC by the Internet, receive the MIDI instruction that other PC sends on the network simultaneously, like this, the people who is distributed in various places just can form an online band, if number is abundant, even can forms philharmonic society on the net and hold the online music meeting, make things convenient for the music-lover to exchange.

Above pattern can simultaneously and be deposited.

Figure 11 shows that the connection diagram in kind of the utility model network function implementation

Above embodiment only is used to illustrate the utility model, but not is used to limit the utility model.

Claims

1. a USB interface-based teaching, amusement, network electronic music system is characterized in that comprising the usb interface unit that data communication and power supply are provided simultaneously.

2. a USB interface-based teaching, amusement, network electronic music system, it is characterized in that comprising one group of translucent key and a light emitting diode matrix, each light-emitting diode in this array is corresponding to a key, and is positioned at the below of its pairing key.

3. a USB interface-based teaching, amusement, network electronic music system, it is characterized in that comprising PC (personal computer) that Windows operating system is housed as the child node of network to realize the communication between the utility model system.