CN102298921A - Inductive accordion - Google Patents

Abstract

The invention relates to a musical toy, in particular to an induction type accordion. An inductive accordion, powered by a storage battery, comprising a left speaker and a right speaker, the left speaker is provided with a speaker, the right speaker is provided with a distance sensing device, a gravity sensor, a core processing module and a voice module, the distance sensing device, the gravity The sensor and the voice module are respectively connected to the core processing module through lines, and the voice module is connected to the speaker through lines. There are several accordion buttons on the right speaker, and the accordion buttons are connected to the core processing module through lines. There is a connection between the left speaker and the right speaker. Integrated lines of integrated circuits. The beneficial effects of the present invention are as follows: 1. Using ultrasonic ranging technology to measure the distance between the left and right shells of the accordion to control the high, middle and low pitch of the accordion sound; 2. Using the gravity sensing technology to expand the system function by tilting the sound box.

Description

A sensory accordion

technical field

The invention relates to a musical toy, in particular to an inductive accordion which makes the accordion sound by using ultrasonic distance measuring technology and inclination sensing technology.

Background technique

Today, with the rapid development of science and technology, product technology is the mainstream development trend, which has a certain impact on industries with a low level of traditional technology. At present, new technology toys integrating light, machinery and electricity are becoming more and more popular in the market. , the musical toys transformed by electronic information technology are more and more favored by consumers, and have great market potential and economic value.

The accordion is a reed music clamor. In addition to the left and right speakers, the traditional accordion has a bellows structure connected between the two speakers. The traditional accordion relies on the left arm to pull and push the bellows to generate airflow, thereby stimulating the reeds to vibrate and produce sound. For example, the announcement number is: The Chinese utility model of CN201259774Y provides an accordion, which belongs to the musical instrument industry and includes a lower piano case, a bellows, an upper piano case and a keyboard case, the lower piano case is fixed on the lower end of the bellows box, the upper piano case is fixed on the upper end of the bellows box, and the keyboard case is set On the upper part of the upper piano case, keys are arranged in the keyboard case. The shape of the longitudinal section after the combination of the keyboard case and the keys is a rectangle, and the long side of the rectangle forms an included angle with the top surface of the upper piano case. The accordion of this patent relies on the airflow produced by the bellows to excite the reeds to vibrate and produce sound. In addition to the left and right speakers, the accordion also has at least one bellows, which makes the accordion heavy and inconvenient to carry and store.

Contents of the invention

The invention mainly aims at the problems of low technological content and small market potential of the existing accordion, and provides an induction accordion with high technological content and relatively large market potential.

At the same time, the invention aims at the problems of heavy weight and inconvenient carrying and storage existing in the existing accordion, and provides an induction accordion with low cost, light weight and convenient carrying and storing.

The above-mentioned technical problems of the present invention are mainly solved by the following technical solutions: an inductive accordion, powered by a storage battery, including a left speaker and a right speaker, the left speaker is provided with a speaker, and the right speaker is provided with a distance sensor The device, the core processing module and the voice module, the distance sensing device and the voice module are respectively connected to the core processing module through the line, the voice module is connected to the speaker through the line, and several accordion keys are arranged on the right speaker, and the accordion key is connected to the core processing module through the line Connect, there is an integrated line connecting the left speaker and the right speaker. The present invention removes the bellows part of the traditional accordion, but uses the distance sensing device to measure the different distances between the left and right speakers, and converts the output signal to the core processing module. Function, due to the removal of the bellows structure, the present invention is light in weight, convenient to carry and store, and high in technological content; the voice module is a note storage element, which is sent to different notes of the speaker according to the control signal of the core processing module, and finally realizes the sound of the accordion; Different accordion keys correspond to different note commands, and the core processing module will receive the note commands produced by different accordion keys to control the work of the voice module, and the voice module controls the loudspeaker to send different notes; the present invention takes the core processing module as the core processing device, The output signals of each module unit are comprehensively summarized and processed, and the voice module is driven by different forms of instructions, and the voice module sends out pulse signals to control the sound of the speaker.

Preferably, the distance sensing device is an ultrasonic distance measuring sensor, and the distance sensing device is arranged on the side of the right sound box close to the left sound box. Ultrasonic ranging sensor is a type of sensor using ultrasonic ranging technology. In this inductive accordion, the ultrasonic ranging sensor is used to measure the distance between the left and right speakers. The ultrasonic emitting device emits ultrasonic waves. According to the time difference when the sensor receives ultrasonic waves, The distance pulse signal is sent in real time for the core processing module to collect and process, and the core processing module sends control instructions to the voice module according to the collected pulse signal, and the voice module controls the high, middle and low pitch of the accordion sound.

Preferably, a gravity sensor is further arranged in the right sound box, and the gravity sensor is electrically connected to the core processing module through a line. The gravity sensor is used to measure the inclination angle of the right speaker relative to the horizontal plane, and transmit different level states to the core processing module according to the inclination angle of the right speaker. The core processing module analyzes the received level state and sends control commands to the voice module; the right speaker A gravity sensor is installed inside to expand the system functions. For example, as the right speaker tilts at different angles, the accordion makes some interesting sounds; or the core processing module detects that the right speaker is tilted for more than a certain period of time, and the system automatically enters the standby sleep state , to save power and other functions.

Preferably, the core processing module is a single-chip microcomputer. The single-chip microcomputer is a typical embedded microcontroller, which has the characteristics of high reliability, small size, and fast processing speed. will appear too bulky.

Preferably, the integrated wire is composed of a plurality of wires wound in a spring shape. The accordion changes the relative distance between the left and right speakers by moving the two speakers, and controls the sound of the accordion through the distance sensing device system, so the distance between the left and right speakers will often change, which requires a certain distance between the two speakers. The integrated line should be long enough, too long integrated line is cumbersome, which is not conducive to the storage of the accordion. To solve this problem, the integrated line can be designed as a collection of stretchable spring-shaped winding wires, so that The cable can be stretched without affecting the normal use of the integrated cable. The integrated cable between the two speakers is shorter when it is not stretched, which is beneficial to the storage of the accordion.

Preferably, a battery box is arranged inside the left sound box, and the distance sensing device, gravity sensor, core processing module, voice module and loudspeaker are all powered by the battery box through lines. The storage battery box is arranged in the left sound box, so that the heat produced by the work of the battery box will not affect the electronic components in the right sound box, ensuring the service life of each electronic component in the right sound box; each electronic component of the accordion can be supplied with low-voltage direct current by the storage battery box.

As preferably, a DC-DC power converter for converting voltage is arranged in the right sound box, the DC-DC power converter is connected with the battery box through a line, the distance sensing device, the gravity sensor, the core processing module, the voice module and the loudspeaker Both are powered by a DC-DC power converter through the line. A DC-DC power converter is a type of transformer, specifically a device used to convert a power source that does not meet the work requirements into a power source that meets the work requirements; using a DC-DC power converter, the voltage sent by the battery box can be Converted to the operating voltage required by each electronic component of the accordion, and then supplied to each electronic component.

Preferably, there are seven accordion keys, and the seven accordion keys are arranged in a row on the outer casing of the right sound box. The seven accordion keys correspond to the seven basic notes. When pressing different accordion keys, the core processing module will receive instructions of different notes and produce different combinations of vocal music. In addition, the accordion keys are arranged in a row, which is convenient for the operator to use.

As a preference, several chord buttons arranged in a row are arranged on the shell of the left speaker, and the chord buttons are connected with the core processing module through a line. A chord is a group of sounds with a certain interval relationship. Multiple notes are combined vertically to form a chord. The chord sound is full and mellow. When playing music on the accordion, adding chords can give people a beautiful enjoyment in hearing. Through the chord button, you can It is the sound of the induction accordion that is even more beautiful.

Preferably, the shell of the left sound box is provided with a sound hole, and the sound hole corresponds to the position of the speaker. The loudspeaker is arranged inside the left sound box, and the sound of the loudspeaker can be emitted through the sound outlet.

Therefore, the beneficial effects of the present invention are: 1. Use ultrasonic distance measuring technology to control the high, middle and low pitch of the accordion sound by measuring the distance between the left and right shells of the accordion; 2. Use gravity sensing technology to expand the system by tilting the sound box Functions, such as making some interesting sounds or when the core processing module detects that the right speaker has been tilted for more than a certain period of time, the system will automatically enter the standby sleep state to save power, etc.

Description of drawings

Accompanying drawing 1 is a kind of structural representation of the present invention;

Accompanying drawing 2 is a kind of sectional view of the present invention;

Accompanying drawing 3 is system working block diagram of the present invention;

Accompanying drawing 4 is a kind of schematic diagram when the present invention is used.

As shown in the figure: 1-left speaker, 2-right speaker, 3-distance sensing device, 4-core processing module, 5-voice module, 6-accordion button, 7-battery box, 8-speaker, 9-gravity sensor , 10-DC-DC power converter, 11-integrated line, 12-polyphonic keys, 13-voice hole.

Detailed ways

The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Example:

As shown in accompanying drawings 1 and 2 of the description, an induction accordion includes a left speaker 1 and a right speaker 2, both of which are cuboid in shape, and the right speaker 2 is fixed with a distance sensing device 3, a core Processing module 4, voice module 5, gravity sensor 9 and DC-DC power converter 10, voice module 5 is a note memory chip whose model is ISD1730, the model of gravity sensor 9 is SYT-YL-328SH, and distance sensing device 3 is a model It is an ultrasonic ranging sensor of HJYT-BEF2503. The distance sensing device 3 is fixed on the side of the right speaker 2 close to the left speaker 1. The core processing module 4 is a single-chip microcomputer with the model STC89C54. The gravity sensor 9, the distance sensing device 3 and the voice The modules 5 are respectively electrically connected to the core processing module 4 through lines. The right speaker 2 is fixed with a DC-DC power converter 10 for converting voltage. The model of the DC-DC power converter 10 is D050505S-2W, and the left speaker 1 is The battery box 7 and the speaker 8 are fixed, the DC-DC power converter 10 is connected to the battery box 7 through a line, the distance sensing device 3, the gravity sensor 9, the core processing module 4, the voice module 5 and the speaker 8 are all connected to the DC through the line. - DC power converter 10 is connected, DC-DC power converter 10 provides the required operating current for each electronic component, integrated wire 11 is composed of a plurality of spring-shaped coiled wires, including DC-DC power converter 10 and the connection line of the battery box 7, and the connection line of the voice module 5 and the speaker 8, seven accordion buttons 6 are arranged in a row on the outer shell of the right speaker 2, and the accordion buttons 6 are electrically connected to the core processing module 4 through the line, Four chord buttons 12 are arranged in a row on the shell of the left speaker 1, and the chord buttons 12 are electrically connected to the core processing module 4 through a line, and a sound hole 13 is opened on the shell of the left speaker 1, and the sound hole 13 corresponds to the position of the speaker 8 .

The voltage required for the system work of the accordion is 5V, while the voltage of a common single battery is 1.5V. The battery box can not reach the 5V voltage required for system work by placing multiple batteries. The battery box can hold four batteries, while The voltage of the four batteries is 6V, so a DC-DC power converter is needed to convert the unqualified 6V voltage into the 5V voltage required by the system, and then deliver the 5V voltage to other electronic components in the system to meet the requirements of the system. Normal use requirements to ensure the long-lasting endurance of the system.

As shown in Figure 3 of the manual, the seven accordion keys correspond to seven basic notes. Press different accordion keys, and the core processing module will receive instructions of different notes to produce different combinations of vocal music; the four chord keys are used to generate chord vocal music. Press different chord keys, the core processing module will receive different note instructions, and the accordion will sound beautiful; The distance between them is different, the distance sensing device will emit ultrasonic waves, calculate the time difference when the sensor receives the ultrasonic waves, and send the distance pulse signal in real time for the core processing module to collect and process, and the core processing module will send control instructions to the voice module according to the collected pulse signal , so that the voice module adjusts the high, middle and bass of the accordion sound; the gravity sensor is used to measure the inclination angle of the right speaker relative to the horizontal plane, and transmit different level states to the core processing module according to the inclination angle of the right speaker, and the core processing module analyzes the received level State, send control instructions to the voice module.

With the core processing module as the core processing device, the output signals of each module unit are comprehensively summarized and processed, and the voice module is driven in different command forms, and the voice module sends out pulse signals to control the sound of the speaker. The signals to be processed include: the pulse output signal of the distance sensing device, the input signal of the accordion key and the chord key, and the output signal of the gravity sensor. Each module is connected to each I/O port of the core processing module in the form of a cable to complete the overall signal processing.

As shown in Figure 4 of the description, when using the present invention, the right speaker is carried on the shoulder, and the left hand is stretched into the additional wristband to hold the left speaker, and the music is played by using the accordion button and the chord button, and by controlling the two The distance of the shell is used to control the high, middle and low pitches of the accordion sound, and to play some interesting music sounds by tilting the right sound box. The invention is full of fun, high in technological content, and has great market potential and economic value.

It should be understood that this embodiment is only used to illustrate the present invention and is not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

Claims (10)

1. An inductive accordion, powered by a storage battery, comprising a left speaker (1) and a right speaker (2), the left speaker (1) is provided with a speaker (8), characterized in that the right speaker (2) A distance sensing device (3), a core processing module (4) and a voice module (5) are provided, the distance sensing device (3) and the voice module (5) are respectively connected to the core processing module (4) through lines, and the voice module (5 ) is connected to the speaker (8) through a line, and several accordion buttons (6) are arranged on the right speaker (2). (2) Integrated lines (11) with integrated lines connected between them. 2. An inductive accordion according to claim 1, characterized in that the distance sensing device (3) is an ultrasonic ranging sensor, and the distance sensing device (3) is set on the right speaker (2) close to the left side of the speaker (1). 3. An inductive accordion according to claim 1, characterized in that, the right speaker (2) is also provided with a gravity sensor (9), and the gravity sensor (9) is processed through the circuit and the core The modules (4) are electrically connected. 4. An inductive accordion according to claim 1, characterized in that the core processing module (4) is a single-chip microcomputer. 5. An induction accordion according to claim 1 or 2 or 3 or 4, characterized in that the integrated wire (11) is composed of a plurality of wires wound in a spring shape. 6. An inductive accordion according to claim 2, characterized in that, the left speaker (1) is provided with a battery box (7), a distance sensing device (3), a gravity sensor (9), a core The processing module (4), voice module (5) and loudspeaker (8) are all powered by the battery box (7) through the line. 7. An induction accordion according to claim 6, characterized in that, the right speaker (2) is provided with a DC-DC power converter (10) for converting voltage, and the DC-DC power converter (10) Connect with the battery box (7) through the line, the distance sensing device (3), the gravity sensor (9), the core processing module (4), the voice module (5) and the speaker (8) are all routed through DC-DC through the line The power converter (10) supplies power. 8. An inductive accordion according to claim 1 or 2 or 3 or 4, characterized in that there are seven accordion keys (6), and the seven accordion keys (6) are arranged in a row on the right speaker (2) on the outer casing. 9. An inductive accordion according to claim 1 or 2 or 3 or 4, characterized in that, the shell of the left speaker (1) is provided with several chord keys (12) arranged in a row, The chord keys (12) are connected with the core processing module (4) through lines. 10. An inductive accordion according to claim 1 or 2 or 3 or 4, characterized in that, the shell of the left speaker (1) is provided with a sound hole (13), and the sound hole (13) and The position of the loudspeaker (8) is corresponding.

Images