JP2007065279A - Music box control unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a music box control unit capable of decreasing mechanical operating sounds. <P>SOLUTION: The music box control unit comprises a controller 21 which assigns arbitrary driving waveform data to a driving section 18, drives a music box mechanism section 19 by the driving force complying with the assigned driving waveform data, discriminates whether the state (noise and sound pressure) of the output sound complying with the assigned driving waveform data detected by a sound pressure detecting circuit 20 is satisfactory, and memorizes the information on the driving waveform data discriminated to be satisfactory together with scale data into a non-volatile memory 12. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a music box control device that controls a music box that emits a sound by playing a mechanical vibration valve using an electric signal.

As a music box sound generator, the music box mechanism has a sound generator having a plurality of vibration valves and a solenoid for striking the vibration valve of the sound generator, and the solenoid sounds the vibration valve of the sound generator directly or via a star wheel. What is operated is proposed (for example, refer to Patent Document 1).
JP-A-11-219171

  However, in the music box control device described above, the solenoid is driven by an electric signal and the vibration valve is struck directly or via the star wheel. However, when the struck or when the output shaft of the solenoid is retracted, the contact with the vibration valve is performed. There is a disadvantage that a mechanical sound is generated at the contact portion, which hinders the good performance of the music box.

  An object of the present invention is to provide a music box control device capable of reducing mechanical operation sound.

  In order to achieve the above object, a first aspect of the present invention is a music box control device that drives and controls a music box mechanism that strikes and vibrates a vibration valve with a driving force according to applied driving waveform data, A first storage unit that stores a plurality of the drive waveform data, a second storage unit that can store information related to the drive waveform data, and a specification from among the plurality of drive waveform data stored in the first storage unit A drive unit for supplying the drive waveform data to the music box mechanism unit for driving, a detection unit for detecting a state of output sound of the music box mechanism unit driven according to the designated drive waveform data, and the drive unit On the other hand, any driving waveform data is designated, the music box mechanism unit is driven with a driving force according to the driving waveform data, and the driving waveform data is detected according to the designated driving waveform data detected by the detection unit. State of the output sound to determine whether is good, the information on the drive waveform data which is determined to be good and a control unit for storing in the second storage unit.

  Preferably, the control unit designates arbitrary drive waveform data for each scale, and stores information related to the drive waveform data determined to be good for each scale in the second storage unit.

  Preferably, the control unit designates the drive unit in order from drive waveform data having a small driving force, and detects drive waveform data that makes the output sound favorable.

  Preferably, the control unit performs detection processing of the drive waveform data stored in the second storage unit at an initial time, and thereafter, the drive unit of the drive waveform data based on information stored in the second storage unit Specify for.

  Preferably, the plurality of drive waveform data is associated with a number and stored in the first storage unit, and the control unit stores the drive waveform data as information in the second storage unit.

  Preferably, the controller has a designation unit that can designate arbitrary drive waveform data, and the control unit designates the drive waveform data to the drive unit in accordance with designation by the designation unit.

  According to the present invention, there is an advantage that mechanical operation sound can be reduced and a good music box performance can be realized.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a music box control apparatus according to an embodiment of the present invention.

  As shown in FIG. 1, the music box control apparatus 10 includes a waveform memory 11 as a first storage unit, a nonvolatile memory 12 as a second storage unit, an operation / monitor unit 13, a test switch 14 as a designation unit, a remote The control unit 15 includes a clock unit 16, an external memory card 17, a drive unit 18, a music box mechanism unit 19, a sound pressure detection unit 20, and a control unit 21.

The waveform memory 11 stores a plurality of drive waveform data for generating sound by supplying an electric signal to the music box mechanism 19 and playing a mechanical vibration valve.
The waveform memory 11 is accessed by the drive unit 18 and includes, for example, three pieces of first drive waveform data 111, second drive waveform data 112, and third drive waveform data 113 as shown in FIGS. Waveform data is stored.
Note that the number of data stored in the waveform memory 11 can be arbitrarily changed according to specifications.

The first drive waveform data 111 is a chopper drive waveform. As shown in FIG. 2A, the actual drive waveform 111A is a sinusoidal waveform in which the drive waveform pulse rises and falls slowly. The waveform data has the smallest driving force among the three driving waveform data.
The first drive waveform data 111 is stored in a form to which the identification number <1> is assigned.

The second drive waveform data 112 is a chopper drive waveform. As shown in FIG. 2B, the actual drive waveform 112A has the rise and fall of the drive waveform pulse according to the first drive waveform data 111. This is waveform data that has a steep trapezoidal waveform and that provides an intermediate driving force among the three driving waveform data (the second smallest driving force can be obtained).
The second drive waveform data 112 is stored in a form to which the identification number <2> is assigned.

The third drive waveform data 113 is a rectangular drive waveform. As shown in FIG. 2C, the actual drive waveform 113A is a rectangular waveform with the steepest rise and fall of the drive waveform pulse. Thus, the waveform data is the waveform data that can obtain the largest driving force among the three driving waveform data (the third smallest driving force can be obtained).
The third drive waveform data 113 is stored in a form to which the identification number <3> is assigned.

The non-volatile memory 12 as the second storage unit is formed of, for example, a flash memory. As will be described in detail later, the control unit 21 designates arbitrary drive waveform data for the drive unit, and this designated drive waveform data The drive waveform data is determined to drive the music box mechanism 19 with a driving force according to the sound pressure and to determine that the state of the output sound (noise and sound pressure) according to the designated drive waveform data detected by the sound pressure detection circuit 20 is good. Is stored together with the scale data.
In the present embodiment, the information relating to the drive waveform data includes identification numbers assigned to a plurality of drive waveform data stored in the waveform memory 11, and in this embodiment, <1>, <2>, and <3>. It is stored with the scale data.

  The operation / monitor unit 13 is provided with various switches for input such as a monitor switch, CdS as light / darkness detection means, and the like, and the detection result of CdS is input to the control unit 21 for each switch input.

  The test switch 14 is operated at an initial time, for example, at the time of shipment or after resetting, or when resetting the drive waveform data in the nonvolatile memory 12, and outputs a plurality of drive waveform data to the control unit 21, for example, number < 1>, <2>, <3> ... can be specified.

  The remote control unit 15 notifies the control unit 21 of the instruction content operated wirelessly (infrared rays) by operating an operation unit (not shown).

  The clock unit 19 has a digital timing mechanism (internal clock), and notifies the control unit 21 of the time at, for example, the hour.

The external memory card 17 can be attached to and detached from a connection system with the control unit 21, and music data (for example, MIDI data), time-performance music data as program data, and an on-line for playing a music music performance music at a requested time. Request data and the like are stored.
For example, when music piece designation and on-request file designation are performed from the control unit 21 to the external memory card 17, music data and on-request data are read from the external memory card 17 to the control unit 21.

  The drive unit 18 includes a waveform shaping circuit, and supplies drive waveform data designated from among a plurality (three in the present embodiment) of drive waveform data stored in the waveform memory 11 to the music box mechanism unit 19 as a signal S18. Drive.

The music box mechanism 19 strikes and sounds the vibration valve with a driving force corresponding to the driving waveform data applied by the driving unit 18.
The music box mechanism unit 19 includes a sounding body having a plurality of vibration valves (not shown) and a solenoid, and the solenoid causes the vibration valve of the sounding body to perform sounding operation directly or via a star wheel.

  The sound pressure detection unit 20 detects the sound pressure that is the state of the output sound of the music box mechanism unit 19 driven by the drive unit 18 according to the designated drive waveform data, and outputs the detection result to the control unit 21 as a signal S20. .

The control unit 21 is configured by a microcomputer or the like, designates arbitrary drive waveform data to the drive unit 18, drives the music box mechanism unit 19 with a drive force according to the designated drive waveform data, and generates sound. It is determined whether or not the state of the output sound (noise and sound pressure) according to the designated drive waveform data detected by the pressure detection circuit 20 is good, and information regarding the drive waveform data determined to be good is nonvolatile. The data is stored in the memory 12 together with the scale data.
In the present embodiment, as described above, the information related to the drive waveform data includes the identification numbers assigned to the plurality of drive waveform data stored in the waveform memory 11, in this embodiment <1> and <2>. , <3> are stored together with the scale data.

The control unit 21 designates arbitrary drive waveform data for each scale, and stores in the nonvolatile memory 12 information related to the drive waveform data that has been determined that the output sound is good for each scale.
In addition, the control unit 21 performs designation for the drive unit 18 in order from drive waveform data having a small driving force (first drive waveform data in the example of FIG. 2), and detects drive waveform data that makes the output sound favorable. .
In addition, the control unit 21 performs a detection process of the drive waveform data stored in the nonvolatile memory 12 according to the input information of the test switch 14 at the time of shipment, and thereafter, based on the information stored in the nonvolatile memory 12. The drive waveform data is designated to the drive unit 18.

  Further, the control unit 21 receives a control process for the input of the operation / monitor unit 13, a control process in response to an instruction from the remote control unit 15, a time information by the clock unit 16, and a report for driving the music box mechanism unit 19 at noon. Time control, external memory card access processing, etc. are performed.

  Next, specific operations of the music box control device according to the present embodiment will be described with reference to the flowcharts of FIGS.

  First, a general operation flow will be described with reference to FIG.

After processing such as initial setting (ST1) of the control unit 21 (microcomputer) and initial value setting (ST2) of each unit, it is determined whether or not the test switch 14 is input (ST3).
The test switch 14 is operated at the time of shipment from the factory. When a positive determination is made in step ST3, the process proceeds to the music box drive waveform detection process ST4 in FIG. This process will be described later.
If it is determined in step ST3 that the test switch 14 has not been input, the specification content in the external memory 17 is confirmed (ST5).
Thereafter, it is determined whether or not the monitor switch is turned on (ST6). If an affirmative determination is made in step ST6, a monitor hitting process is performed (ST7).
If a negative determination is made in step ST6, it is determined whether or not the monitor is on based on an instruction from the remote control (remote control) unit 15 (ST8). If an affirmative determination is made in step ST8, a remote control monitor hitting process is performed (ST9).
If a negative determination is made in step ST8, it is determined whether or not it is “00 minutes” in the hour-setting mode (ST10). If an affirmative determination is made in step ST10, a time-setting process is performed (ST11).
If a negative determination process is performed in step ST10, it is determined whether or not it is the program time in the program mode (ST12). If an affirmative determination is made in step ST12, a program hitting process is performed (ST13).
If a negative determination is made in step ST12, it is determined whether or not the external memory 17 has been reinserted (ST14). If a positive determination is made in step ST14, the specification content in the external memory 17 is confirmed (ST15).
If a negative determination is made in step ST14, it is determined whether or not it is "00 seconds" (ST16). If an affirmative determination is made in step ST14, program data confirmation processing is performed (ST17).
If a negative determination is made in step ST14, the process returns to step ST5.

  Next, the music box drive waveform detection process will be described in association with the flowchart of FIG.

First, it is determined whether or not the drive waveform detection process has been completed for all musical scales (ST41).
Since a negative determination is initially made in step ST41, the first drive waveform data 111 is designated (ST42). As a result, the first drive waveform data 111 is applied to the music box mechanism 19, the state of the output sound (sound pressure) of the music box mechanism 19 is detected by the sound pressure detector 20, and the detection signal S 20 is sent to the controller 21. Entered.
Here, the control unit 21 determines whether or not the noise of the output sound when driven by the first drive waveform data 111 is smaller than a preset specified value and the sound pressure is normal (ST43). .
If an affirmative determination is made in step ST43, the identification number <1> is stored in the nonvolatile memory 12 as information relating to the first drive waveform data 111 (ST44), and the process proceeds to step ST49 and the next scale is reached. Is selected and the process proceeds to step ST41.

If a negative determination is made in step ST43, the second drive waveform data 112 is designated (ST45). As a result, the second drive waveform data 112 is applied to the music box mechanism unit 19, the state of the output sound (sound pressure) of the music box mechanism unit 19 is detected by the sound pressure detection unit 20, and the detection signal S 20 is sent to the control unit 21. Entered.
Here, the control unit 21 determines whether or not the noise of the output sound when driven by the second drive waveform data 112 is smaller than a preset specified value and the sound pressure is normal (ST46). .
If an affirmative determination is made in step ST46, the identification number <2> is stored in the nonvolatile memory 12 as information related to the second drive waveform data 112 (ST47), and the process proceeds to step ST49 and the next scale is reached. Is selected and the process proceeds to step ST41.

  If a negative determination is made in step ST46, the identification number <3> is stored in the non-volatile memory 12 as information relating to the third drive waveform data 113 (ST48), and the process proceeds to step ST49 and the next scale is obtained. The process proceeds to step ST41.

  Next, interrupt processing will be described with reference to the flowchart of FIG.

Upon entering the interrupt process, the current time up process is performed (ST101).
Then, “00 second” confirmation processing (ST102), “00 minute” confirmation processing (ST103), switch input confirmation processing (ST104), and input confirmation processing (ST105) processing by the remote control unit 15 are performed.

As described above, according to the present embodiment, arbitrary drive waveform data is designated for the drive unit 18, the music box mechanism unit 19 is driven with a drive force according to the designated drive waveform data, and sound pressure detection is performed. It is determined whether or not the state of the output sound (noise and sound pressure) according to the designated drive waveform data detected by the circuit 20 is good, and information regarding the drive waveform data determined to be good is stored in the nonvolatile memory 12. Since it has the control part 21 memorize | stored with scale data, mechanical operation sound can be reduced.
A plurality of drive waveforms are prepared, and desired drive waveforms can be selectively stored while confirming the operation at the initial time such as factory shipment, so that the spring force of the plurality of solenoids applied to the music box mechanism unit 19 can be stored. Even if there are some differences, there is an advantage that a sufficient driving force can be obtained.

It is a block block diagram which shows the music box control apparatus which concerns on embodiment of this invention. It is a figure which shows the example of the some drive waveform data memorize | stored in the waveform memory which concerns on this embodiment. It is a flowchart for demonstrating the general operation | movement of the music box control apparatus which concerns on this embodiment. It is a flowchart for demonstrating the music box drive waveform detection processing operation of the music box control apparatus which concerns on this embodiment. It is a flowchart for demonstrating the interruption processing operation | movement of the music box control apparatus which concerns on this embodiment.

Explanation of symbols

10 ... Music box control device 11 ... Waveform memory (first storage unit)
12: Non-volatile memory (second storage unit)
13 ... Operation / monitor unit 14 ... Test switch (designation unit)
DESCRIPTION OF SYMBOLS 15 ... Remote control part 16 ... Clock part 17 ... External memory card 18 ... Drive part 19 ... Music box mechanism part 20 ... Sound pressure detection part 21 ... Control part

Claims (6)

A music box control device that drives and controls a music box mechanism that sounds by striking a vibration valve with a driving force according to applied driving waveform data,
A first storage for storing a plurality of the drive waveform data;
A second storage unit capable of storing information relating to the drive waveform data;
A drive unit configured to supply drive waveform data specified from the plurality of drive waveform data stored in the first storage unit to the music box mechanism unit;
A detection unit for detecting a state of an output sound of the music box mechanism unit driven according to the designated drive waveform data;
Designate arbitrary drive waveform data for the drive unit, drive the music box mechanism unit with a drive force according to the drive waveform data, and output sound according to the designated drive waveform data detected by the detection unit A music box control device comprising: a control unit that determines whether or not the state is good and stores information related to the drive waveform data that has been judged good in the second storage unit. The said control part specifies arbitrary drive waveform data for every musical scale, and memorize | stores in the said 2nd memory | storage part the information regarding the said drive waveform data discriminate | determined that the output sound is favorable for every musical scale. Music box control device. The music box control device according to claim 1, wherein the control unit performs designation for the drive unit in order from drive waveform data having a small driving force, and detects drive waveform data that makes an output sound favorable. The control unit performs detection processing of the drive waveform data stored in the second storage unit at an initial stage, and thereafter designates the drive waveform data for the drive unit based on information stored in the second storage unit. The music box control device according to any one of claims 1 to 3. The plurality of drive waveform data is stored in the first storage unit in association with a number,
The music box control device according to any one of claims 1 to 4, wherein the control unit stores the drive waveform data as information in the second storage unit. It has a specification part that can specify arbitrary drive waveform data,
The music box control device according to any one of claims 1 to 5, wherein the control unit designates drive waveform data to the drive unit in accordance with designation by the designation unit.

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