JPH03123581A - Movement device - Google Patents

Abstract

PURPOSE:To surely recognize the variation of acoustic rhythm by precisely detecting the variation of volume and to conduct a plurality of various movements in corresponding to the variation thereof, by providing a decision controlling means whereby a speed of its rhythm is calculated from the volume detected by a voltage comparing means and a plurality of driving-control signals, each of which corresponds to the speed of its rhythm, are outputted. CONSTITUTION:A decision control part 19 is composed so as to output one of digital criterion signals with 16 stage levels, and has a function of level regulation. A comparative voltage-generating part 15 consists of D/A converting circuit wherein a digital signal in the levels regulated at the 16 stages is converted to an analog signal and output to a voltage comparing part 18 as a compartive criterion signal. The magnitude of a detected voltage, i.e. the variation of musical volume detected by a microphone 5, can be therefore detected more precisely, case by case. In this way, the title device effects various movements in corresponding to the variation of the rhythm of this volume.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an operating device that operates in response to sound, and more specifically, the present invention relates to an operating device that operates in response to sound. The present invention relates to an operating device capable of performing various operations.

[Prior Art] Conventionally, as this type of operating device, one that operates by sensing sound is known. However, the conventional motion device described above always performs a fixed motion no matter what kind of rhythm the sound is, and the motion pattern is simple and lacks interest.

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

(Structure of the Invention) In order to achieve the above object, an operating device according to the present invention comprises:
In order to operate in response to music, it includes a sound sensor for detecting sound, and operation means that performs multiple types of different operations.
and control means for detecting the volume of the sound detected by the sound sensor, detecting a change in the volume, and controlling the operating means to perform the specific operation according to the change in the volume. Comparison voltage generating means generates a level-adjusted multi-level comparison reference voltage, and the sound signal from the sound sensor is compared with the comparison reference voltage from the comparison voltage generating means to generate the sound signal. Voltage comparison means for detecting the volume, and judgment control that calculates the rhythm speed of the sound from the volume detected by the voltage comparison means and supplies multiple types of drive control signals corresponding to the rhythm speed. It is characterized by consisting of means.

(For I) According to the motion device with the above configuration, it is possible to reliably recognize changes in the rhythm of the volume and perform different motions in response to the changes, allowing for more complex and interesting responsive motions. It is something that can be achieved.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 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 Figure (a), this operating device consists of a pedestal part 1 for supporting the main body, and a hollow operating part 3 formed of a flexible member such as urethane on the pedestal part 1, A condenser microphone 5 for detecting sounds such as music is disposed on the pedestal portion 1.

As shown in the same figure (b), the pedestal section 1 and the operating section 3
There is an operating mechanism 7 for operating the operating section 3 in a plurality of patterns, and a detected music signal from the condenser microphone 5 is input into the unit to detect changes in the rhythm speed (tempo) of the detected music. An internal circuit 9 is provided for determining the change in the rhythm (changes in the rhythm) and supplying a plurality of types of motor drive control signals to the actuation mechanism 7 in accordance with the speed of the rhythm. The operating mechanism 7 is configured to operate the operating section 3 in a plurality of patterns in accordance with a plurality of types of motor drive control signals from the internal circuit 9. In order to achieve the above operation, the actuation mechanism 7
It has a DC morph 11 that performs normal rotation and reverse rotation.

Furthermore, Figure 2 (al) is an overall perspective view and an internal configuration diagram of another embodiment of the operating device, and is basically the same as that in Figure 1 (a) (bl), which has a different external appearance. Since there are some, they will be explained using 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 amplifying section 13 that amplifies the detected music signal from the condenser microphone 5, and a signal voltage holding section that maintains the maximum level of the signal from the signal amplifying section 13. 14, a comparison voltage generation section 15 for generating a comparison reference voltage, and compares the voltage between the reference voltage from the comparison voltage generation section 15 and the detected voltage from the signal voltage holding section 14 to know the level of both. According to the comparison results from the voltage comparison unit 18 and the voltage comparison unit 18, the volume of the music detected by the microphone 5 is detected, the rhythm speed (tempo) of the music is calculated, and the tempo is calculated. The judgment control section 19 supplies one or more types of motor drive control signals to the motor drive section 17 of the operating mechanism 7 in accordance with the above. Here, the judgment control section 19 is configured to supply one of the digital reference signals of 16 levels to the comparison voltage generation section 15, and has a level adjustment function. The comparison voltage generation section 15 is comprised of a D/A conversion circuit that converts the digital signal of the level adjusted in the 16 steps into an analog signal and supplies it to the voltage comparison section 18 as a comparison reference voltage. Therefore, the signal voltage holding section 1
4, the magnitude of the detection voltage, that is, the change in the detected volume of music, can be detected with higher precision on the spot. Thereby, changes in the rhythm of the sound can be recognized more reliably.

Further, the signal voltage holding section 14 includes the judgment control section 19.
It consists of a peak hold circuit configured to hold the maximum level of the signal until a further reset signal is applied, and output the signal held by the reset signal.

Further, the level adjustment of the judgment control section 19 is carried out in such a way as to detect the pulsation of the music by measuring changes in an 8-step range of the 16-step voltage range, as shown in FIG. It can also be done.

The judgment control section 1 is comprised of a one-chip microcomputer (MPU) 31 containing a built-in ROM and RAM and equipped with a board for inputting and outputting signals.

The input port of the MPU 31 is provided with a resistor array for pulling up the signal voltage of the input port, but this may be built into the MPU.

The function of the MPU 31 will be described later in the software description, so it will be omitted here.

Although the MPU 31 is a microprocessor, it can also be configured using a logic IC or gate array having a counter function.

The motor drive unit (MD) 17 is a motor driver IC, but may also be several transistors.

Here, from the output port of MPU31 to the INI of MDI7
, IN2, respectively, the physical high level voltage (hereinafter,
Physical low level voltage (hereinafter referred to as 'L')
When this signal is applied, MD17 outputs a positive voltage to 0UTI and a negative voltage to 0UT2, causing the motor 11 to rotate forward. MD, 1
When the ``L'' and ``H'' signals are applied to INI and IN2 of 7, respectively, the MD 17 outputs a negative voltage to 0UTl and a positive voltage to 0UT2, causing the motor 11 to reverse. When "Ho" or "L" is commonly applied to INI and IN2 of the MD 17, no voltage is output to 0UT1 and 0UT2, and the motor 11 stops.

Next, the program operation in the MPU 31 of the judgment control section 19 will be explained.

That is, as described below, the ROM of the MPU 31 stores a program for supplying a drive control signal for controlling the rotational direction and speed of the motor 11 in response to changes in the rhythm of the volume. The MPU 31 operates according to the program to generate the drive control signal.

First, in this embodiment, a change in the rhythmic speed (tempo) of music is easily recognized by a change in volume.

In other words, when the rhythm of music is fast, there are many changes in volume within a certain period of time, and the volume is also high on average.On the other hand, when the rhythm of music is slow, there are many changes in volume within a certain period of time, and the volume is also high. In other words, when the volume rhythm is fast, the motor 11 is reversed and the motor speed is increased, and when the volume change is small within a fixed time and the volume is small, i.e.
When the volume rhythm is slow, a motor drive control signal is generated to cause the motor 11 to rotate forward and to reduce the motor speed.

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

First, when the power switch is turned on, the MPU 31 starts operating, and each area is initialized in preparation for the start of the program.Then, the reference voltage is supplied to the comparison voltage generation section 15, and the signal is Voltage holding part 14
A sound sampling step is performed in which the heliset signal is supplied and the signal from the voltage comparator 18 is taken into the memory (RAM). Then, a determination step is performed to determine how to move the motor 11 based on the data taken into the memory, and a motor control step is performed to output a motor drive control signal in accordance with the method to move the motor 11 determined by the determination step. will be carried out.

Next, each step of the above main routine will be explained.

As shown in FIG. 6, the initialization process includes a work area initialization process in which initial values are input into the work area used in each routine, a timer value is input for time management, and a work area initialization process in which the motor 11, and an output boat initialization step for sending a stop signal to

As shown in FIG. 7, the sound sampling process includes a process of allocating sample A and sample B to separate work areas (in memory) for later comparison, and a process of later using motor speed as a reference. This consists of the step of setting sound level data as sampling data in a memory in order to achieve this.

As shown in FIG. 8, the determination step includes a level difference determination step of comparing the current sampled volume level and the past (previous) sampled volume level, and detection by comparing the volume level. The mode determination step determines the forward or reverse rotation mode of the motor 11 according to the sound volume change, and the speed determination step determines the speed of the motor 11 according to the sound level data stored in the memory. .

Here, regarding the above-mentioned level difference determination step, mode determination step, and speed determination step, which are the main points of the present application, FIGS.
This will be explained in more detail with reference to FIG. 11.

In the level difference determination step, as shown in FIG. 9, when either of the samplings A and B is at the maximum level,
subtracting sampling B from sampling A;
If the difference resulting from the above-mentioned subtraction is equal to the previously specified level difference, the difference count is incremented by 1. The above level difference is large (big) medium (normal)
, Small.

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

Here, in normal rotation mode, if the rotation is always normal,
In order to facilitate reversal, the above specified numerical value is made small. Also, in reverse mode, if it is always reversed,
In order to facilitate forward rotation, the specified value is increased.

The speed determination step, as shown in FIG. 11, consists of a step of reading and setting the speed corresponding to the volume from the relational graph shown in FIG. 12. Here, the above relationship graph is stored in the memory, and as is clear from the above graph, the rotation speed of the data is different between normal rotation and reverse rotation.

Next, as shown in FIG. 13, the morph control step consists of controlling the rotational speed of the motor 11 by performing 0N10FF of the motor 11 with a pulse width.

Therefore, when the forward rotation or reverse rotation mode is determined in the mode determination step and the rotation speed is determined in the speed determination step, the MPU 31 inputs the input terminal INI of the motor drive unit (MD) 17 from the output port.
, IN2 are supplied with signals corresponding to the determined mode and determined rotational speed. Thereby, as described above, the motor 11 rotates forward or reverse at the specified rotational speed.

Next, a description will be given of the operating mechanism 7 that operates the operating section 3 (see FIG. 2) in a plurality of (in this case two) patterns according to the forward or reverse rotation of the motor 11.

As shown in FIG. 2, this operating mechanism 7 has a base 41 that swings left and right, and an arm 43 that makes piston movements up and down on the base 41, and the motor 11 rotates clockwise (forward rotation). When the arm 43 is rotating, the arm 43 moves up and down, and when the arm 43 is rotating counterclockwise (reversely), the base 41 swings from side to side.

As shown in FIG. 14, the gear configuration of this mechanism is such that when the gear 45 attached to the motor 11 rotates clockwise, the gear 47 rotates counterclockwise, and the gear 47 acts as a planetary gear. 49 moves to the left end of its available position. Therefore, gear 51.53.55 is
Driven by the motor 11, as a result, the drive bin 57 provided coaxially with the gear 55 rotates counterclockwise,
As shown in FIG. 15, move the arm 43 up and down. At this time, the stopper 50 (see FIG. 16), which also moves left and right due to the movement of the gear 49, engages with the gear 59 in order to suppress the movement of the base 41 due to the reaction torque generated by the movement of the drive bin 57. Fix the base 41.

When the gear 45 attached to the motor 11 rotates counterclockwise, the gear 49 now moves to the right end, and the gear 5
9.61 to rotate the drive bin 63, which is coaxial with the gear 61, counterclockwise. As shown in Figure 14,
The drive bin 63 causes the base 41 to swing from side to side. The stopper 50 moves to the right end due to the movement of the gear 49, fixes the gear 51, and suppresses unnecessary movement of the arm 43 due to the reaction torque of the drive bin 63.

Therefore, due to the action of the stopper 50, the base 41
Even if the rotation of the motor 11 changes and the base 41 loses its support at an intermediate position between the left and right sides during left and right movement, the base 41 is reliably fixed and supported.

Furthermore, as shown in FIG. 2, this mechanism is equipped with a cover 4 made of a flexible material such as urethane that covers the entire movable part (base, arms). This cover has the shape of, for example, a dinosaur, and because it expands and contracts freely according to the movement of the movable parts, it can move as if it were alive.

When such an actuation mechanism 7 is combined with the above-mentioned internal circuit, changes in the rhythm of the sound given as input can cause
The internal circuit automatically controls the rotational direction and rotational speed of the motor 11, and by operating this mechanism, for example, when gentle music is given by human power, the bass mainly moves from side to side. They move slowly and give an intense melody, but they move rapidly, mainly by moving their arms up and down.As a result, it looks like they are dancing to the music.In addition, in Figure 4, the microphone is Although voltage measurement level divisions are distributed at equal intervals for the input digital value, the D/A of the comparison voltage generation section 15
If you change the distribution of each resistance value of the converter's ladder resistance, for example, the lower level (lower in Figure 4) will be finer, the higher level (upper in Figure 4) will be coarser,
It is also possible to allocate (and vice versa). Due to these differences in measurement methods, products to which the Cyberbeat System is applied (for example, dolls that dance to music) are able to move in different ways (as a result, they are unique).

(Effects of the Invention) As described above, according to the present invention, it is possible to reliably recognize changes in the rhythm of human-powered music, and to operate the operating section in multiple types of patterns according to the rhythm changes. It is capable of providing complex and interesting movements.

[Brief explanation of drawings]

Figures 1(a) and 1(b) are an overall perspective view and an internal configuration diagram of a working toy embodying the present invention, respectively, and Figure 2(a) is
(b) is an overall perspective view and an internal configuration diagram of another embodiment, FIG. 3 is a circuit block diagram of the internal circuit shown in FIGS. 1(b) and 2(b), and FIG. FIG. 5 is a flowchart showing the main routine of the program operation of the MPU shown in FIG. 3. FIGS. FIGS. 14 and 16, which show details of each step in the routine, are detailed explanatory diagrams of the operating mechanism shown in FIG. 2.

Claims (5)

[Claims] (1) To operate in response to music, there is a sound sensor for detecting sound, an operating means that performs multiple types of different actions, and a sound sensor that detects the volume of the sound detected by the sound sensor. and a control means for detecting a change in the sound volume and controlling the operating means to perform the different operations according to the change in the volume, the control means comprising a level-adjusted multi-stage control means. a comparison voltage generation means for generating a comparison reference voltage; a voltage comparison means for detecting the volume of the sound signal by comparing the sound signal from the sound sensor with the comparison reference voltage from the comparison voltage generation means; An operating device comprising judgment control means for calculating the rhythmic speed of the sound from the sound volume detected by the means and supplying a plurality of types of drive control signals corresponding to the rhythmic speed. . (2) The level-adjusted multi-level comparison reference voltage is
The operating device according to claim 1, characterized in that there are 16 stages. (3) The operation means includes a motor whose rotational direction and speed change according to a plurality of types of drive control signals from the judgment control means, an operation section made of a deformable flexible member, and a rotational direction and speed of the motor. 2. The operating device according to claim 1, further comprising an operating mechanism that operates the operating section in a plurality of types of patterns according to changes in the operating unit. (4) The operating mechanism has a gear configuration that causes the operating section to expand and contract when the motor rotates in the normal direction, and causes the operating section to swing when the motor rotates in the reverse direction. The operating device according to claim (3). (5) The operating mechanism is for supporting the operating section in the middle of the swinging motion when the rotational direction of the motor changes so as to switch from the swinging motion to the telescopic motion during the swinging motion of the operating section. 5. The operating device according to claim 4, further comprising a stopper.