JPH0832280B2 - Operating device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating device that operates in response to sound, and more specifically, detects a change in sound volume with high accuracy and makes a difference in response to the change in sound volume. The present invention relates to an operating device capable of performing the specified operation.

(Prior Art) Conventionally, as an operating device of this type, an operating device that senses sound to operate is known. However, the above-described conventional operation device always performs a constant operation regardless of the rhythm of the sound, and it is not interesting because the operation pattern is simple.

(Object of the Invention) The present invention is to solve the above-mentioned conventional drawbacks, and its object is to reliably recognize a change in the rhythm of a sound by detecting a change in volume with high accuracy, It is an object of the present invention to provide an operating device capable of performing a plurality of different operations in response to the change.

(Structure of the Invention) In order to achieve the above object, an operating device according to the present invention is an operating device that operates in response to music, and includes a sensor for detecting sound, an operating means using a motor as a drive source, It has a control means for controlling the motor and is provided with the following requirements.

(A) The control means compares the sound signal detected by the sensor with the reference voltage output from the comparison voltage generation circuit, samples the sound signal exceeding the reference voltage to judge the change in the rhythm of the sound volume, Is provided so as to change the rotation direction and the rotation speed of the motor based on the change of (b) The operation means includes a flexible hollow body having an appropriate shape, and a vertical and horizontal direction inside the hollow body. And an operating mechanism for selectively operating the operating unit in the up-down direction or the left-right direction by interlocking with the forward and reverse rotation directions of the motor.

(Operation) According to the operation device having the above-described configuration, since it is possible to reliably recognize the change in the rhythm of the sound volume and perform different operations corresponding to the change, a more complicated and interesting sensitive operation is achieved. Is something that can be done.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

1 (a) and 1 (b) are an overall perspective view of an operating device embodying the present invention and an internal configuration diagram of the operating device, respectively.

As shown in FIG. 1A, this operating device includes a pedestal portion 1 for supporting the main body, and a hollow operating portion 3 formed on the pedestal portion 1 by a flexible member such as urethane. The pedestal portion 1 is provided with a condenser microphone 5 for detecting a sound such as music.

As shown in FIG. 2B, inside the pedestal portion 1 and the operating portion 3, an operating mechanism 7 for operating the operating portion 3 in a plurality of types of patterns, and a detection music from the condenser microphone 5. A signal is input to determine a change in rhythm speed (change in tempo) of the detected music, and a plurality of types of motor drive control signals are supplied to the operating mechanism 7 in accordance with the rhythm speed. And the internal circuit 9 of FIG. The operating mechanism 7 is configured to operate the operating section 3 in a plurality of types of patterns in accordance with a plurality of types of motor drive control signals from the internal circuit 9.
Then, in order to achieve the above operation, the operating mechanism 7
Has a DC motor 11 that performs normal rotation and reverse rotation.

2 (a) and 2 (b) are an overall perspective view and an internal configuration diagram of another embodiment of the operating device, which is different in appearance and is basically the same as that of FIG. 1 (a) (b). Are the same and will be described with the same reference numerals.

 FIG. 3 is a detailed circuit diagram of the internal circuit 9.

As shown in the figure, the internal circuit 9 includes a signal amplifier 13 for amplifying the detected music signal from the condenser microphone 5 and a signal voltage holder for holding the maximum level of the signal from the signal amplifier 13. 14, a comparison voltage generator 15 for generating a comparison reference voltage, and the comparison voltage generator 15 described above.
According to the comparison result from the voltage comparison unit 18 and the voltage comparison unit 18 for comparing the reference voltage from the signal voltage holding unit 14 with the detection voltage from the signal voltage holding unit 14, and the comparison result from the voltage comparison unit 18. The volume of the generated music is detected, the rhythm speed (tempo) of the music is calculated, and a plurality of types of motor drive control signals corresponding to the tempo are supplied to the motor drive unit 17 of the operating mechanism 7. The judgment control unit 19 is included. Here, the judgment control unit 19 is configured to supply one of 16 levels of digital reference signals to the comparison voltage generation unit 15 and has a level adjusting function. The comparison voltage generation unit 15 includes a D / A conversion circuit that converts the digital signal of the level adjusted in the 16 steps into an analog signal and supplies the analog signal to the voltage comparison unit 18 as a comparison reference voltage. Therefore, the magnitude of the detection voltage from the signal voltage holding unit 14, that is,
It is possible to detect a change in the detected music volume on the spot with higher accuracy. Thereby, the change in the rhythm of the sound can be recognized more reliably.

The signal voltage holding unit 14 holds the maximum level of the signal until the reset signal from the judgment control unit 19 is applied, and outputs the signal held by the reset signal. Made of.

Further, as shown in FIG. 4, the level of the judgment control section 19 is adjusted so as to detect the beat of the music by measuring the change by paying attention to the range of 8 steps out of the voltage range of 16 steps. You can also do it.

The judgment control unit 19 is composed of a one-chip microcomputer (MPU) 31 having a built-in ROM and RAM and having a port for signal input / output.

The input port of the MPU31 is provided with a resistor array for pulling up the signal voltage of the input port, which may be incorporated in the MPU.

The operation of the MPU31 will be omitted here as it will be described later in the description of the software.

Although the MPU31 is a microprocessor, it can be configured using a logic IC or game array that has a counter function.

The motor drive unit (MD) 17 is a motor driver IC
However, it can also be several transistors.

Here, when the signal of physical high level voltage (hereinafter abbreviated as'H ') and physical low level voltage (hereinafter'L') is applied from the output port of MPU31 to IN1 and IN2 of MD17, MD17 is output to OUT1. Motor with positive and negative voltage on OUT2
Rotate 11 forward. When'L 'and'H' signals are given to IN1 and IN2 of MD17, MD17 outputs a negative voltage to OUT1 and a positive voltage to OUT2, and causes the motor 11 to rotate in the reverse direction. MD17 IN1,
OUT1 when giving "H" or "L" in common to IN2. OUT2
No voltage is output to the motor 11, and the motor 11 stops.

Next, the program operation in the MPU 31 of the judgment control unit 19 will be described.

That is, in the ROM of the MPU 31, as described below, a program for supplying a drive control signal for controlling the rotation direction and speed of the motor 11 in response to a change in volume rhythm is stored. According to the program, the MPU 31 operates to generate the drive control signal.

First, as a method of simply recognizing a change in the rhythm speed (tempo) of music, in this embodiment, the change is made in the volume.

That is, when the rhythm of music is fast, there are many volume changes within a certain period of time, and the volume is also large on average. On the other hand, when the rhythm of the music is slow, there are many volume changes within a certain period of time, and when the volume is large, that is, when the volume rhythm is fast, the motor 11 is rotated in reverse and the motor speed is increased. When the volume change is small and the volume is small within a certain period of time, that is, when the volume rhythm is slow, the motor 11 is rotated in the normal direction and the motor drive control signal is generated so as to reduce the motor speed. ing.

Next, the main routine of the program operation will be described with reference to FIG.

First, when the power switch is turned on, the MPU 31 starts its operation, and each area is initialized (initialized) in preparation for the start of the program. Then, a reference voltage is supplied to the comparison voltage generator 15, a reset signal is supplied to the signal voltage holder 14, and a sound sampling step of incorporating the signal from the voltage comparator 18 into the memory (RAM) is performed. . Then, a judgment step for deciding how to move the motor 11 is performed based on the data taken in the memory, and the motor 11 decided by the judgment step is carried out.
A motor control step of outputting a motor drive control signal is performed according to how to move the.

Next, each step of the main routine will be described.

As shown in FIG. 6, the above initialization (initialization)
The process consists of a work area initialization process that inputs an initial value to the work area used in each routine and a timer value for time management, and an output port initialization process that sends a stop signal to the motor 11. Become.

As shown in FIG. 7, in the sound sampling step, a step of allocating as sample A and sample B to another work area (in the memory) for each comparison later and a reference of motor speed later are performed. To set the sound level data in the memory as sampling data.

As shown in FIG. 8, the determining step includes a level difference determining step of comparing a current sampled volume level with a past (one previous) sampled volume level,
A mode determination step of determining the normal rotation and reverse rotation modes of the motor 11 according to the volume change detected by the comparison of the volume levels, and a speed determination for determining the speed of the motor 11 according to the sound level data stored in the memory. And the process.

Here, the level difference determining step, the mode determining step, and the speed determining step, which are the main points of the present application, will be described in more detail with reference to FIGS. 9 to 11.

In the level difference determination step, as shown in FIG. 9, when either of the samplings A and B has the maximum level, the step of subtracting the sampling B from the sampling A and the difference by the subtraction are designated in advance. If there is only a level difference, the process of incrementing the difference count by +1. The level difference is designated by three of large (big), medium (normal), and small (small).

The mode determination step is, as shown in FIG. 10, when the difference count is within a specified numerical value, the step of setting the normal rotation mode, and when the difference count is equal to or greater than the specified numerical value. , And a step of setting a reverse rotation mode.

Here, in the normal rotation mode, if the normal rotation is always performed, the designated numerical value is reduced to facilitate the reverse rotation. Further, in the reverse rotation mode, if the reverse rotation is always performed, the designated numerical value is increased to facilitate the normal rotation.

The speed determination step comprises a step of reading the speed corresponding to the volume from the relational graph shown in FIG. 12 and setting it, as shown in FIG. Here, the relationship graph is stored in the memory, and as is clear from the graph, the data rotation speed is different between the forward rotation and the reverse rotation.

Next, as shown in FIG. 13, the motor control step includes a step of controlling the rotation speed of the motor 11 by turning on / off the motor 11 with a pulse width.

Therefore, when the normal rotation or reverse rotation mode is determined in the mode determination process and the rotation speed is determined in the speed determination process, the MPU 31 outputs from its output port the input terminal IN1, IN1 of the motor drive unit (MD) 17. A signal corresponding to the decision mode and the decision rotation speed is supplied to IN2. As a result, the motor 11
Is to rotate forward or reverse at a specified rotation speed.

Next, the operating mechanism 7 for operating the operating portion 3 (see FIG. 2) in two types of patterns according to the forward or reverse rotation of the motor 11 will be described.

As shown in FIG. 2, the actuating mechanism 7 is a mechanism having a base 41 that swings to the left and right and an arm 43 that vertically moves a piston on the base 41, and the motor 11 rotates clockwise (normal rotation). The arm 43 moves up and down when it is rotating, and the base 41 swings left and right when rotating (reversing) counterclockwise.

As shown in FIG. 14 showing the gear configuration of this mechanism, when the gear 45 attached to the motor 11 rotates clockwise,
The gear 47 rotates counterclockwise, and the gear 49, which acts as a planet gear with respect to the gear 47, moves to the left end of its possible position. Therefore, the gears 51, 53, 55 are driven by the motor 11, and as a result, the eccentric shaft 57 provided on the gear 55 rotates counterclockwise, and moves the arm 43 up and down as shown in FIG. . At this time, the stopper 50 (see FIG. 16), which is also movable to the left and right by the movement of the gear 49, prevents the base 41 from moving due to the reaction torque generated by the movement of the drive pin 57, and therefore meshes with the gear 59, By fixing the gear 59, the gear 61 is fixed and the base 41 is fixed.

When the gear 45 attached to the motor 11 rotates counterclockwise, the gear 49 moves to the right end this time, and the gears 59, 61.
Is driven to rotate the eccentric shaft 63 provided on the gear 61 counterclockwise. As shown in FIG. 14, the drive pin 63 causes the base 41 to swing right and left. The stopper 50 moves to the right end by the movement of the gear 49, and unlocks the gear 59.

Therefore, by the action of the stopper 50, the rotation of the motor 11 is changed during the left and right movements of the base 41, and
Even if the support loses its support at the left and right intermediate positions, the base 41 is securely fixed and supported.

Further, as shown in FIG. 2, a cover 4 made of a flexible material such as urethane that covers the entire movable portion (base, arm) is attached to this mechanism. The cover has a shape of, for example, a dinosaur, and freely expands and contracts according to the movement of the movable portion, so that it can move as if it were alive.

When such an operating mechanism 7 and the above-mentioned internal circuit are combined, the internal circuit automatically controls the rotation direction and the rotation speed of the motor 11 according to the change in the rhythm of the sound given as an input, and this mechanism is operated. For example, when music with a gentle tune is given as an input, it moves slowly, mainly with the left and right movements of the bass, and when a strong tune is given, the subject moves up and down with the arm as a main movement. do. As a result, it looks like you're dancing to the music. In FIG. 4, the voltage measurement level is divided at equal intervals with respect to the digital value of the microphone input.
When the distribution of each resistance value of the ladder resistance of the converter is changed, for example, it is possible to allocate more finely at a low level (lower in FIG. 4) and coarser at a higher level (upper in FIG. 4). Yes (the reverse is also possible). Due to this difference in the measuring method, it is possible for the application product of the motion device (for example, a doll that dances to music) to move differently (as a result, unique).

(Effects of the Invention) As described above, according to the present invention, it is possible to reliably recognize a change in the rhythm of input music, operate the operation unit in a plurality of types of patterns in accordance with the rhythm change, and perform programming in advance. It is possible to provide a more complicated and interesting operation by changing input music, as compared with an operation device that operates by inputting the generated signal.

[Brief description of drawings]

1 (a) and 1 (b) are an overall perspective view and an internal configuration diagram of a moving toy embodying the present invention, respectively, and FIG. 2 (a).
(B) is an overall perspective view of another embodiment and its internal configuration diagram,
FIG. 3 is a circuit block diagram of the internal circuit shown in FIG. 1 (b) and FIG. 2 (b), FIG. 4 is an explanatory diagram showing level adjustment by the judgment control unit shown in FIG. 3, and FIG. MP shown in Fig. 3
A flowchart showing the main routine of the program operation of U, FIGS. 6 to 13 are diagrams showing the details of each step in the main routine shown in FIG. 5, and FIGS. 14 to 16 are
FIG. 17 is a detailed explanatory view of the actuating mechanism portion shown in FIG. 2, and FIG. 17 is a perspective view showing the relationship between the arm and the eccentric shaft and the base and the eccentric shaft. Reference numeral 1 ... Pedestal part, 3 ... Operating part, 5 ... Condenser microphone, 7 ... Actuating mechanism, 9 ... Internal circuit

Claims (1)

[Claims] 1. An operating device which operates in response to music, comprising a sensor for detecting sound, an operating means using a motor as a drive source, and a controlling means for controlling the motor, and further satisfying the following requirements. An operating device characterized by being provided. (A) The control means compares the sound signal detected by the sensor with the reference voltage output from the comparison voltage generation circuit, samples the sound signal exceeding the reference voltage to judge the change in the rhythm of the sound volume, Is provided so as to change the rotation direction and the rotation speed of the motor based on the change of (b) The operation means includes a flexible hollow body having an appropriate shape, and a vertical and horizontal direction inside the hollow body. And an operating mechanism for selectively operating the operating unit in the up-down direction or the left-right direction by interlocking with the forward and reverse rotation directions of the motor.