KR20010109380A - Apparatus for Handy Dance-Practing Game - Google Patents

Abstract

The present invention relates to a dance practice entertainment apparatus, and more particularly, to a portable dance practice entertainment apparatus using a dead reckoning sensor. The portable dance practice entertainment apparatus according to the present invention is attached to a part of the user body to detect the acceleration and the rotational speed, and compares the position coordinates generated from the detected acceleration and rotational speed and the preset reference coordinates And a control unit for outputting a control signal according to the comparison result, a music player for reproducing music according to the control signal of the control unit, and a display unit for outputting a message according to the control signal of the control unit. There is no limit to maximize utilization, and when synchronized with other mobile communication terminals, multiple people can use the same step signal. In addition, unlike the existing recreational dance practice entertainment device (DDR) device, the size of the footrest is set in the virtual space, there is an effect that can increase the exercise effect by greatly changing the size of the foothold in accordance with the software operation.

Description

Portable dance practice entertainment device {Apparatus for Handy Dance-Practing Game}

The present invention relates to a dance practice entertainment apparatus, and more particularly, to a portable dance practice entertainment apparatus using a dead reckoning sensor.

The dance practice entertainment apparatus (DDR) generally used on the market is composed of a main body 101, a monitor 102, a speaker 103, and a footrest 104.

1 is a block diagram showing a dance practice entertainment device (DDR) according to the prior art.

Referring to FIG. 1, when the dance practice entertainment apparatus (DDR) is driven, the main body 101 sequentially displays steps for the user to step through the monitor 102 and the speaker 103 under the control of the main body 101. Outputs background music through.

The user generates a step by stepping on the footrest according to the step displayed on the main body 101, and the step information is input to the main body 101.

The main body 101 monitors the user's step and displays an appropriate message on the monitor 102 according to the degree to which the direction of the user's step coincides with the direction indicated by the user's step, or the speaker 103 with an appropriate sound effect. Output through

Such a conventional dance practice entertainment device (DDR) is expensive to implement the device, because it requires a lot of space is not suitable for home or portable use.

Although home dance practice entertainment devices (DDRs) are being released for home use, they are not portable because they are connected to home entertainment devices and personal computers.

In addition, since the user's step is input through the scaffold, execution places are limited.

Accordingly, an object of the present invention is to provide a portable dance practice entertainment apparatus that can be used regardless of the user's dance practice execution place in view of the problems of the prior art mentioned above.

According to a device feature of the present invention for achieving the above object, a detection unit attached to a part of the user body for detecting the acceleration and rotational speed, position coordinates generated from the detected acceleration and rotational speed and the preset reference coordinates And a control unit for outputting a control signal according to the comparison result, a music reproducing unit for reproducing music according to the control signal of the control unit, and a display unit for outputting a message according to the control signal of the control unit.

Preferably, the sensing unit is composed of a body attachment portion attached to the user's body portion, an acceleration sensor unit for sensing the moving acceleration of the user's body portion, and an angular velocity sensor unit for sensing the moving rotational speed of the user's body portion, The accelerometer further includes an acceleration sensor for sensing a moving acceleration of a part of the user's body, a first filter unit for removing noise of an output signal of the acceleration sensor, and a first low noise for amplifying an output signal of the first filter unit. And an amplifier, a second filter unit for removing distortion components of the output signal of the first low noise amplifier, and an analog-to-digital converter for converting the output signal of the second filter unit into a digital signal.

Preferably, the angular velocity sensor unit is configured by replacing the acceleration sensor with the angular velocity sensor in the acceleration sensor unit.

In addition, the body attachment portion of the dial sensor uses any one of a clip type, an attachment type, and a belt type.

The sensor may be connected to the controller by wire or wireless. In particular, when the sensor is wirelessly connected to the controller, the sensor may include a digital signal processor for encoding the sensed acceleration and rotational speed, and the encoded signal. The apparatus further includes a wireless transmitter for transmitting.

In this case, the wireless transmission unit is characterized in that the transmission in the short-range wireless LAN (LAN) method with the control unit.

The control unit, the music reproducing unit, and the display unit, which are part of the portable dance practice entertainment device including the detecting unit, may be mounted on a mobile communication terminal or MP3 player.

1 is a block diagram showing a dance practice entertainment apparatus according to the prior art.

Figure 2 is a block diagram of a portable dance practice entertainment apparatus according to the present invention.

3 is a block diagram illustrating a sensing unit connected to the control unit shown in FIG. 2 in a wired manner according to the present invention.

Figure 4 is a block diagram showing one of the acceleration sensor shown in Figure 3 according to the present invention.

Figure 5 is a block diagram showing one of the angular velocity sensor unit shown in Figure 3 according to the present invention.

Figure 6 is a block diagram showing another sensing unit connected by wire with the control unit shown in Figure 2 according to the present invention.

FIG. 7 is a block diagram illustrating a sensing unit wirelessly connected to the control unit illustrated in FIG. 2 according to the present invention. FIG.

Figures 8a, 8b, 8c is a view showing the shape of the body attachment portion shown in Figure 3 according to the present invention.

Figure 9 is a block diagram for explaining a method of using a plurality of portable dance practice amusement machine according to the present invention.

10 is a control flowchart of a portable dance practice entertainment apparatus according to the present invention.

* Description of the symbols for the main parts of the drawings *

201: detection unit

202: control unit

203: display unit

204: music player

Hereinafter, the configuration and operation according to the preferred embodiment of the present invention will be described with reference to the accompanying drawings.

2 is a block diagram illustrating a portable dance practice entertainment apparatus according to the present invention.

Referring to FIG. 2, the portable dance practice entertainment apparatus according to the present invention includes a detector 201 for detecting a step that the user makes and generating step data, and the step data generated by the detector 201. And a control unit 202 for outputting a first control signal according to the comparison result by comparing the position coordinates generated by wireless input with reference coordinates, and displaying a message or displaying the message according to the control signal of the control unit 202. And a display unit 203 for continuously outputting a tread step, and a music player 204 for reproducing and outputting an effect sound or background music which can be heard by a user according to the second control signal of the controller 202.

In the above description, the control unit 202, the display unit 203, and the music reproduction unit 204 can be mounted in a commonly used mobile communication terminal or MP3 player.

Therefore, the portable dance practice entertainment apparatus according to the present invention will be described with reference to a mobile communication terminal equipped with the control unit 202, the display unit 203, and the music reproduction unit 204.

When the user moves according to the output step of the indicator 203 using a hand or an instep, the detection unit 201 uses a dead reckoning sensor to detect a movement acceleration and a rotation speed of a part of the user's body. And the dead reckoning. The sensor connects three acceleration sensors measuring linear acceleration and three gyroscopes measuring rotational speed, respectively, and rotates in three directions from the acceleration measured by the acceleration sensor and the rotational speed measured by the gyroscope. Calculate the angle and distance traveled.

Therefore, when the portable dance practice entertainment device is driven, a dead reckoning sensor of the sensing unit 201 is attached to both ankles and both hands, and both are collected to initialize the origin, and the user desires the size from the origin. Set the scaffolding area of.

Thereafter, whenever a body part of the user moves, the Dead Reckoning sensor continuously detects the relative position of the origin of the ankle to generate step data about the distance and the rotation angle with respect to the relative position.

The initial setting of the origin and scaffold size assumes that the existing scaffolding area is moved to the virtual space. However, the actual scaffold size is reduced in software, and the step data generated by the actual user moving a part of the body is input to the controller 202.

At this time, the step data value input to the controller 202 is input to the controller 202 in the form of a wire through a serial port provided in the form of a car kit, which is a connection connector at the bottom of the mobile communication terminal.

On the other hand, the step data generated by the dead sensor (Dead Reckoning) may be input to the controller 202 in the form of a radio.

The wireless form is input to the controller 202 using Bluetooth, which is a short-range wireless LAN.

In addition, a mobile communication terminal equipped with the control unit 202, the display unit 203, and the music playback unit 204, or an MP3 player, is similarly equipped with a Bluetooth receiver to receive the dead reckoning sensor. The step data generated by is received in a Bluetooth manner. In this case, a Bluetooth transmitting unit is configured in the dead reckoning sensor.

The controller 202 generates a position coordinate from the data inputted through the serial port and the Bluetooth method, that is, the step data, and compares it with the initially set virtual coordinate to output a control signal.

The control signal outputs a message to the display unit 203 or controls an effect sound to the music reproducing unit 204.

That is, the position coordinates of the movements of a part of the user's body in the virtual coordinate region set by the user's operation are determined, and when they coincide with each other, a different message is output to the display unit 203 according to the degree of matching. do.

At the same time, the music reproducing unit 204 reproduces the effect sound according to the control signal.

The display unit 203 continuously displays the step output of the portable dance practice entertainment device and outputs a different message according to the control signal output from the control unit 202.

3 is a diagram illustrating a sensing unit connected to the control unit shown in FIG. 2 in a wired manner according to the present invention.

Since the sensing unit 201 uses a dead reckoning sensor, the sensing unit 201 is referred to as a dead reckoning sensor.

Referring to FIG. 3, such a dead reckoning sensor includes a body attachment part 301 for attaching a sensor to a body, an acceleration sensor part 302 for measuring an acceleration magnitude in a linear direction of a step, It consists of an angular velocity sensor unit 303 for measuring the magnitude of the rotational speed.

By this configuration, the moving distance is measured using the magnitude of the acceleration detected by the acceleration sensor unit 302, and the rotation angle is measured using the magnitude of the rotation speed detected by the angular velocity sensor unit 303. do.

This moved distance and rotation angle are transmitted to the control unit 202 by wire as step data.

4 is a block diagram showing one of the acceleration sensor unit shown in FIG. 3 according to the present invention.

Referring to FIG. 4, an acceleration sensor 401 for outputting a magnitude of acceleration in a linear direction, a first filter unit 402 for removing noise of a signal output from the acceleration sensor 401, and A low noise amplifier 403 for amplifying a weak signal output from the first filter unit 402, a second filter unit 404 for removing distortion components of the low noise amplifier 403, and a second filter unit And an analog to digital converter 405 for converting the output signal into a digital signal.

The acceleration sensor unit 302 of the dead reckoning sensor having the above configuration detects the magnitude of the acceleration in the linear direction by the acceleration sensor 401 and outputs the magnitude of the voltage.

Currently, the acceleration sensor is used to detect the magnitude of the acceleration up to 10g (1g means 9.8m / s acceleration), its analog output is 0.2 ~ 2V / g, it operates in the case of 1g acceleration sensor If no acceleration more than 1g occurs during the time, linear output appears along the time axis.

In the case of the dance practice entertainment device, if the user's foot moves at a constant interval of 30 cm to 90 cm in 0.25 seconds, the average speed is 1.2 m / s to 3.6 m / s, which corresponds to about 0.97 g to 2.93 g. Applicable

The signal output from the acceleration sensor 401 is input to the first filter unit 402 to remove noise.

In addition, since the signal output from the first filter unit 402 is a signal having a weak magnitude, it is amplified by the low noise amplifier 403, and the second filter unit (3) is used to remove the distortion signal generated by the amplification process. 404).

The signal passing through the second filter unit 404 is sampled at a minute time interval by the analog-to-digital converter 405, and the moving distance during the minute time interval is calculated. In case of constant velocity, the acceleration sensor outputs the reference voltage.

The analog-to-digital converter 405 is additionally installed when the controller 202 shown in FIG. 2 does not have a function of converting an analog signal into a digital signal.

As described above, one acceleration sensor unit having such a configuration includes three acceleration sensors 401 to form one acceleration sensor unit.

The reason why the acceleration sensor unit is composed of three acceleration sensors is that each acceleration sensor forms an axis in accordance with the acceleration, such as a method of obtaining a distance from three points of x, y, and z axes to obtain a distance in a three-dimensional space domain. This is because the distance can be obtained.

5 is a block diagram showing one of the angular velocity sensor unit shown in FIG. 3 according to the present invention.

In FIG. 4, the acceleration sensor may be replaced with an angular velocity sensor.

The angular velocity sensor is a sensor that outputs the magnitude of the rotational speed of the sensor as the magnitude of the voltage.

The sensitivity of this angular velocity sensor is 300 degrees / second, which detects a rotational angle of 75 degrees per 0.25 seconds. If the user's ankle or the foot itself cannot be rotated greatly due to the structure of the human body during the dance practice entertainment device, the existing angular velocity sensor is applied if it only acts on the detection of the stepping motion of the existing dance movement. It is possible.

When the analog-to-digital converter 505 constituting the angular velocity sensor unit is similar to the analog-to-digital converter 405 shown in FIG. 4, the control unit 202 shown in FIG. 2 does not have a function of converting an analog signal into a digital signal. Additionally installed.

In addition, one angular velocity sensor unit having such a configuration combines three angular velocity sensors 501 to form one angular velocity sensor unit.

Therefore, each angular velocity sensor 501 forms a single axis and obtains a rotation angle due to the rotation speed.

Therefore, as shown in FIGS. 4 and 5, the acceleration sensor unit and the angular velocity sensor unit are connected to the elements of the first filter unit 402 and 502 or less, respectively, to form three acceleration sensors and three angular velocity sensors to determine the position of the step controller. To 202.

FIG. 6 is a block diagram illustrating another sensing unit connected to the control unit shown in FIG. 2 by wire.

Since the detector uses a dial sensor, such a detector is hereinafter referred to as a dial sensor.

Referring to FIG. 6, the dead reckoning sensor includes a body attachment part 601 for attaching a sensor to a body, an acceleration sensor part 602 for measuring an acceleration magnitude in a linear direction of a step, An angular velocity sensor unit 603 for measuring the magnitude of the rotation speed, step data generated from the acceleration sensor unit 602 and the angular velocity sensor unit 603 are input, encoded, and provided to the controller 202 by wire. It consists of a digital signal processing unit 604.

In this configuration, the acceleration sensor unit 602 and the step data generated by the angular velocity sensor unit 603 are encoded by the digital signal processing unit 604 and provided to the control unit 202, and the control unit 202 ) Decodes this signal, generates position coordinates, and compares them with reference coordinates.

FIG. 7 is a block diagram illustrating a sensing unit wirelessly connected to the control unit illustrated in FIG. 2 according to the present invention.

Since the detector uses a dead reckoning sensor, the detector is referred to as a dial sensor as described above.

Referring to FIG. 7, a dead sensor connected to a wireless unit further includes a wireless transmitter 707 in addition to the apparatus illustrated in FIG. 6.

The wireless transmitter 707 transmits and receives data using a wireless Bluetooth method.

The short-range wireless LAN (LAN) method, which is referred to as a Bluetooth, currently has a maximum communication distance of up to 10 m, unidirectional communication, 721 kbps, and the size of the chip is horizontal * vertical (2 * 3 cm). Since it can be mounted in the sensor module, it is used as a wireless communication module of dead reckoning.

In addition, by setting 79 channels with a bandwidth of 1MHZ in the 2.4GHZ band and transmitting / receiving radio waves with a frequency hopping spread spectrum technology that changes 1600 channels per second, performance is maintained evenly even in noisy wireless frequencies. It is also possible for a plurality of users synchronized using a terminal to compete.

In this case, the mobile terminal or MP3 player, which is equipped with the control unit 202, the display unit 203, and the music reproducing unit 204, which is a portable dance practice entertainment device, includes a dead reckoning sensor. Like the sensing unit 201, the step data is received from a dead reckoning sensor of the sensing unit 201 using a wireless LAN method called a Bluetooth.

8A to 8C are views illustrating various shapes of the body attachment part shown in FIG. 3 according to the present invention.

Referring to FIGS. 8A, 8B, and 8C, a dead reckoning sensor may be attached to various parts of a user's body either alone or integrated with a digital converter or integrated with a digital signal processing device.

Commonly used clip types (Fig. 8a), velcro (hooked) or attachable methods such as magnets (Fig. 8b) and belt types (Fig. 8c) such as rubber belts are available.

9 is a diagram illustrating a method of using a plurality of portable dance practice entertainment apparatus.

In order for a plurality of users to simultaneously use the portable dance practice entertainment apparatus, a short-range wireless LAN (LAN) method called BlueTooth described in FIG. 7 is used.

That is, the first terminal 901 and the second terminal 903 are synchronized with each other by sending and receiving a synchronization signal through the Bluetooth of the wireless transmitter 705.

When the portable dance practice entertainment apparatus is driven, the first terminal 901 and the second terminal 903 output the same steps or different steps using the display unit.

In this case, when outputting the same step, the plurality of users separately attach one dial sensor to divide the same step.

On the other hand, when outputting different steps, the plurality of users attach each of the dial sensors so that they can compete by stepping on different steps.

10 is a control flowchart of a portable dance practice entertainment apparatus according to the present invention.

Referring to FIG. 10, the portable dance practice entertainment apparatus detects the magnitude of the user's moving acceleration and rotation speed and outputs an error message or generates an appropriate sound effect according to the following procedure.

First, a dead reckoning sensor is attached to both feet of the user (S10).

The user who attaches the dead reckoning sets the origin position of the step and sets the step size using the dead reckoning sensor (S11).

The coordinate area is generated based on the area set by the user as the origin from the set origin point and the step size, and the coordinate area is stored.

That is, the user makes the step size to be manipulated by using the dial sensor in a two-dimensional coordinate space.

Meanwhile, the user's step is displayed on the liquid crystal display of the mobile communication terminal or MP3 player that implements the dance practice entertainment device (S13).

The user moves the body part to which the dial sensor is attached according to the displayed step, and detects the acceleration and the rotation angle with respect to the movement of the body part and generates it as the position coordinate on the virtual coordinate area (S14).

The motion of the user step is detected by the dead reckoning sensor and compared with the generated coordinates and the stored coordinate area (S15).

When the reference time passes (S16), it is checked whether the position of the dead reckoning sensor is in the stored virtual coordinate area (S17).

When the reference time has not passed, step S15 is repeated.

If the position of the dead reckoning is not in the virtual coordinate region, an error message is output (S18).

However, if the position of the dead reckoning sensor is in the virtual coordinate region, the next step is outputted according to the degree of coincidence or coincidence with the liquid crystal display of the mobile communication terminal or MP3 player. Print the instructions.

As described above, the present invention, first, because the dead sensor (Dead Reckoning) is attached to the ankle position, there is no need for a separate footrest there is no limitation of the place.

Second, since it can maximize portability by integrating with a mobile communication terminal or MP3 player, there is no limitation of time and place, maximizing utilization.

Third, when synchronized with other mobile communication terminals, several people can use the same step signal.

Fourth, the price is lower than that of a conventional dance practice entertainment device (DDR).

Fifth, unlike the existing recreational dance practice entertainment device (DDR) device, the size of the footrest is set in the virtual space, it is possible to change the size of the foothold in accordance with the software operation. Therefore, the exercise area can be increased by increasing the scaffolding area.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the examples, but should be defined by the claims.

Claims (9)

A detection unit attached to a part of the user's body to sense acceleration and rotation speed; A controller for comparing the position coordinates generated from the sensed acceleration and the rotational speed with a preset reference coordinate and outputting a control signal according to the comparison result; A music player for playing music according to the control signal of the controller; Portable dance practice entertainment device comprising a display unit for outputting a message according to the control signal of the controller. The method of claim 1, wherein the detection unit A body attachment part attached to a part of the user's body, An acceleration sensor unit sensing a moving acceleration of a part of the user body; Portable dance practice entertainment device comprising an angular velocity sensor unit for sensing a moving rotational speed of a part of the user's body. The method of claim 2, wherein the acceleration sensor unit An acceleration sensor sensing a moving acceleration of a part of the user's body; A first filter unit removing noise of an output signal of the acceleration sensor; A first low noise amplifier for amplifying an output signal of the first filter unit; A second filter unit which removes a distortion component of an output signal of the first low noise amplifier; Portable dance practice entertainment device comprising an analog to digital converter for converting the output signal of the second filter unit into a digital signal. According to claim 2, wherein the angular velocity sensor unit An angular velocity sensor for sensing a moving rotational speed of a part of the user's body; A third filter unit for removing noise of an output signal of the angular velocity sensor; A second low noise amplifier for amplifying an output signal of the second filter unit; A fourth filter unit for removing distortion components of the output signal of the second low noise amplifier; And a second analog to digital converter for converting the output signal of the fourth filter unit into a digital signal for converting the digital signal into a digital signal. The portable dance practice entertainment apparatus according to claim 2, wherein the body attachment portion uses any one of a clip type, an attachment type, and a belt type. The portable practice entertainment apparatus of claim 1, wherein the sensing unit is connected to the controller by wire or wirelessly. The apparatus of claim 2 or 6, wherein when the sensing unit is wirelessly connected to the control unit, the sensing unit is a digital signal processor for encoding the sensed acceleration and rotational speed, and a wireless transmitter for transmitting the encoded signal. Portable dance practice entertainment device characterized in that it further comprises The portable dance practice entertainment apparatus of claim 7, wherein the wireless transmitter transmits the control unit to the controller in a short range wireless local area network. The portable dance practice entertainment apparatus according to claim 1, wherein the control unit, the music reproducing unit, and the display unit are mounted in a mobile communication terminal or an MP3 player.