KR101849647B1

KR101849647B1 - Music creation system to purity the motor noise and music source generating scheme

Info

Publication number: KR101849647B1
Application number: KR1020150082609A
Authority: KR
Inventors: 유기석
Original assignee: 지에스인더스트리(주)
Priority date: 2015-06-11
Filing date: 2015-06-11
Publication date: 2018-04-23
Also published as: KR20160146044A

Abstract

The present invention relates to a music production system and a sound source implementation method for purifying noise generated when a motor is driven in a product including a motor, and is intended to refine the noise generated when the motor is operated to music.
The present invention calculates a drive noise 400 of a motor as an absolute sound source 411 and generates a drive music based on the absolute sound source 411 in order to smooth the noise itself to a good listening sound In order to finally output the drive music, it does not use a general speaker, but a motor or a fan performs its role and does not require any additional hardware, so it has no effect on the manufacturing cost except the initial development cost. So that the added value of the product can be greatly increased.

Description

TECHNICAL FIELD The present invention relates to a music generating system and a music sound generating method for enhancing motor noise,

The present invention relates to a music production system and a sound source implementation method for purifying noise generated when a motor is driven in all products including a motor, and more particularly, And to a system and a sound source implementation method in which the noise is refined to music.

In general, in the case of a product including a motor, various measures are taken against the noise generated when the product is used in addition to the function inherent to the product.

These motor noise countermeasures are roughly listed as follows: a structure of a motor itself, a motor assembly structure for blocking or reducing noise, or a conventional sound source generator for canceling motor noise.

However, these measures have limitations in solving the noise problem. In particular, in the case of a vacuum cleaner or a dry dryer having a high noise, the magnetic noise generated when the motor operates, the duct noise generated when the air flows into the duct, And the fan noise generated when the fan is generated is so great that it causes irritation to the listeners. However, the countermeasures are very insufficient.

Products using these fan motors cause unnecessary stress due to the magnetic noise generated at high speed rotation and the sharp high sound generated from the fan, which is caused by the irritation caused by the strong stimulation of the human auditory sense.

Therefore, besides measures to suppress or reduce the noise generation, it is necessary to implement a system to purify the noise itself into a sound that can be heard.

An object of the present invention is to solve the noise problems of a product using such a conventional motor, and to provide a motor control apparatus and a control method thereof, Generating system.

The music generation system of the present invention is to implement a method of implementing a sound source that smoothes motor noise that causes a motor and a fan to function as a kind of speaker.

In order to achieve the above object, the present invention is a means for purifying the source of noise to music in order to solve the problem of static noise of products using a motor.

One of the greatest features of the present invention is that it does not use any general hardware as a component for outputting music.

In the present invention, it is not intended to listen to elaborate music, but rather to use the hardware required for driving the motor as a method of outputting simple music instead of noise.

Another feature of the present invention is that a motor or a fan performs its role without using a general speaker to finally output music.

A processor such as a microcomputer (MICOM) is used to implement and store an absolute sound source and a plurality of drive music as means for converting the above drive noise into drive music Program.

The absolute sound source is implemented by allocating a certain amount of the motor drive output to the total size of the sound source so as to be generated as a sound close to an absolute sound.

As described above, according to the present invention, noise is calculated as an absolute sound source and the drive noise of the motor is reduced to a drive music on the basis of the absolute sound source. Thus, It can solve the problem of static noise, and the motor noise stress is solved, thereby providing a pleasant and safe living environment and working environment.

In addition, since the present invention can increase the efficacy without affecting the manufacturing cost at all except the initial development cost, the added value of the product can be greatly increased.

1 is a block diagram of a music hand dryer according to the present invention;
2 is a flowchart of a music hand dryer according to the present invention;
FIG. 3 is a flow chart of an implementation of the absolute sound source and the driving music of the present invention
4 is a conceptual diagram of an absolute sound source implementation based on the frequency output of the present invention.
5 is a conceptual diagram of an absolute sound source implementation based on the voltage output of the present invention.
6 is a conceptual diagram of an absolute sound source implementation based on the ratio output of the present invention
7 is a conceptual diagram of an absolute sound source based on the RPM output of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The structure of a block diagram of a hand dryer according to an embodiment of the present invention will be described with reference to FIG.

Fig. 1 is a block diagram of the present invention. Fig. 1 is a circuit diagram showing a block road of the present invention, a converter circuit 121 for converting an AC power source 110 into a DC power source, an inverter circuit 122 for directly driving the dry motor 130, A drive current sensor 131 for monitoring the drive current of the drive motor 130, a controller 142 for controlling the rotation speed of the drive motor 130, A processor (MCU) 141 which is programmed by a user, a hand sensing sensor 151 for drying the water in the hands of a person cleanly, a selection key switch for selecting a programmed drive music (152), and an absolute music and drive music program.

The control method of the driving noise of the dry motor 130 according to the present invention as described above will be described below with reference to FIG.

First, the drive music selected by the music selection key 205 is stored in the processor built-in memory through the process of storing the selected music data 206, The dry motor is operated (203) according to the stored song data, and the hand sensing standby state is entered unless a hand is sensed (202) by the hand sensing sensor (201). At this time, the dry motor operation is operated for a predetermined time (204), and the dry motor is stopped (207) upon reaching a predetermined time.

After the dry motor is stopped (207), it is checked (208) whether or not the hand is continuously detected. If the hand is not detected, the operation returns to the initial state.

FIG. 3 and FIG. 4 show a process of implementing an absolute sound source and a drive music according to the present invention.

First, the absolute sound source frequency calculation 311 of FIG. 4, the absolute amount 410 is allocated among the total drive output 400 of the motor (calculated by calculating 65.9% or more in FIG. 4), and the absolute note is classified at an arbitrary interval (411).

Then, the algorithm is implemented on the basis of the calculated absolute sound 411, the sound source programming 313 suitable for the algorithm is performed, the loaded program is loaded on the processor 314, The frequency is measured 316 to determine if the audible frequency is close to an absolute sound (316).

At this time, if the audible frequency is not close to the absolute sound, the absolute source frequency is again calculated 311 and the process up to the motor driving 315 is repeated.

If the audio frequency of the motor drive 315 approaches the absolute value through the repeating process, the drive music to be applied is selected (321) to program the musical scale of the drive music (322) (325) and the audible frequency generated when driving the motor (324) is measured (325) to check whether the audible frequency is close to the driving music.

At this time, if the audio frequency is not close to the selected drive tune, the process of selecting the drive tune (321) to the motor drive (324) is repeated.

If the audible frequency of the motor drive 324 approaches the driving tune through such an iterative process, the implementation of the absolute sound source and the driving tune is completed.

FIGS. 4 to 7 show the concepts for implementing the absolute sound according to the motor drive source of the present invention. The absolute sound implementation is applied to a frequency standard of 4 octaves in frequency standard for each scale, The standard frequency for each scale can be applied by changing the octave level.

4 shows an absolute sound source driven on the basis of Hz, FIG. 5 shows an absolute sound source driven on the basis of a bolt (Volt), and FIG. 6 shows an absolute sound source And FIG. 7 shows an absolute sound driving source based on the RPM.

Of these, it is a feature of the present invention that an absolute sound implementation can be applied to any driving source.

110: AC power supply 121: Converter circuit
122: inverter circuit 130: dry motor
131: drive current sensor 141: processor
142: Controller 151: Hand sensor
152: selection key switch 160: drive program
400: motor drive output 410: absolute sound source area
411: Absolute notes

Claims

In a product or an apparatus using a high-speed motor,
Wherein the controller is configured to program a musical scale of a driving musical piece to load a processor for outputting a driving musical piece to smooth the driving noise generated by driving the high-
Measuring the audible frequency generated when the motor is driven so that the audible frequency approaches the driving music,
And a music generating means for providing a motor or a fan as a speaker so as to calculate the absolute music source as a source of the music to be played by the music generating means and to select one of frequency, voltage and alphabet as a driving source of the absolute music source Wherein the motor noise generation unit generates the motor noise based on the motor noise.

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For products using high speed motors,
The sound source frequency of the product is calculated (311)
The algorithm is implemented to program the sound source (312, 313)
The motor is driven by loading the program (314, 315)
If the audible frequency and the absolute sound are the same, the driving frequency is selected (321)
The program is programmed to load the program (322, 323)
If the audible frequency is different from the driving tune by driving the motor, repeating the driving tune selection step 321 and ending when the audible frequency and the driving tune are the same.

5. The method of claim 4,
Wherein the driving music is stored in a memory and selected for use.

6. The method of claim 5,
Wherein the absolute sound source that is the source of the driving music is implemented by selecting any one of voltage, current, driving frequency, and audible frequency.