JPH03210622A - Data input system - Google Patents

Abstract

PURPOSE:To attain the input of a 3-dimensional position in simple constitution by providing plural ultrasonic wave receiving parts as well as a rod-shaped matter which contains a blinking light emitting part at one of its both ends together with an ultrasonic wave generating part where the intermittent ultrasonic waves are produced synchronously with the blinking of the light emitting part. CONSTITUTION:A light emitting element P such as an infrared light emitting diode, etc., is provided at one of both ends of a rod-shaped matter B and blinks. An ultrasonic wave generator T is set adjacent to the element P and produces intermittently the ultrasonic waves synchronously with the blinking of the element P. Under such conditions, a distance is obtained between a reference position and the tip or the grip part of the matter B based on the difference between the velocity of light and that of a sound wave. Based on this obtained distance, the 3-dimensional position data is obtained. Thus a device can be simplified and also the moving velocity is detected by means of the Doppler effect. Therefore this moving velocity is also used as the input data. In addition, the tilt of the matter B is obtained by providing plural ultrasonic wave generating parts at different positions in the lengthwise direction of the matter B. Thus the input of a 3-dimensional position is attained in simple constitution.

Description

[Detailed Description of the Invention] [Summary] Regarding a data input method for manually inputting data of a designated position to a processor system, the object is to provide a data input method that enables manual input of three-dimensional positions with a simple configuration. a rod-shaped body having at least one end thereof a light-emitting part that flashes and an ultrasound generator that generates intermittent ultrasound in synchronization with the flashing; at least one light-receiving part that detects light from the light-emitting part; a plurality of ultrasonic receiving sections that receive ultrasonic waves from the ultrasonic generating section, and the time when the light receiving section receives the light from the light emitting section; The distance from the rod-shaped body to the ultrasound receiving unit is calculated based on the time difference from the time when the ultrasound is received, and the distance from the rod-shaped body to the ultrasound receiving unit calculated by each of the plurality of ultrasound reception units is The position of the rod-shaped body is determined based on the distance, and this position is inputted to the processor system. Alternatively, the rod-shaped body is subjected to ultrasonic waves having a different frequency from that of the ultrasonic generator at different positions in the length direction. It is configured by providing a second ultrasonic wave generator that generates in synchronization with the blinking.

[Industrial application field]

The present invention relates to a data input method for inputting data of a designated position to a processor system, and particularly relates to a data input method suitable for inputting a designated position using a baton, a pointing baton, or the like.

[Conventional technology]

When playing music using a processor system,
For example, you can simply replay using previously recorded performance data, perform using an instrument that has a data output function such as a MIDI output function, or use a keyboard or mouse that is commonly used to input data into a computer. A performance is being performed based on the input data.

[Problem to be solved by the invention]

However, when performing the above-mentioned replay, if it is attempted to change the content of the performance, such as the tempo or rhythm, it is necessary to reconstruct the recorded data.

Furthermore, when playing an instrument that has a data output function, it is possible to obtain operability that is equivalent to or better than operating a normal instrument, but although this is effective for playing a small number of instruments, For example, it was unsuitable for conducting a performance with many instruments such as an orchestra.

Furthermore, although it is possible to provide performance data using input devices such as a computer keyboard or mouse to a normal processing system, such a method is far removed from the performance of a normal musical instrument or the direction of a performance. This creates a sense of discomfort for the performers and conductor.

On the other hand, in Japanese Patent Application Laid-open No. 63-223813, for example,
A plurality of light-receiving elements with directivity are arranged on a plane, Y-plane, and Z-plane, or on the X-axis, Y-axis, and Z-axis, and the position of the light-receiving element that receives light from a light source attached to a fingertip, etc. A data input method is described in which the three-dimensional position of the light source is input as data based on Therefore, there was a problem that the configuration became large-scale and complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a data input method that allows three-dimensional position input using a simple configuration.

[Means to solve the problem]

A rod-shaped body having at least one end provided with a light emitting part and an ultrasound generating part, at least one light receiving part that detects light from the light emitting part, and a plurality of ultrasound receiving parts that receive ultrasound from the ultrasound generating part. and a time difference between the time when the light receiving section receives the light from the light emitting section and the time when one of the ultrasonic receiving sections receives the ultrasonic wave from the ultrasonic generating section. Calculate the distance to the ultrasonic receiver, determine the position of the rod based on the distance from the rod to the ultrasonic receiver calculated by each of the plurality of ultrasonic receivers, and send this position to the processor system. I entered it.

Furthermore, the rod-shaped body is provided with a second ultrasonic generator that generates ultrasonic waves of a different frequency from the ultrasonic generator in synchronization with the blinking at different positions in the length direction.

[For production]

FIG. 1 shows the principle of the present invention, and FIG. 1(a) shows a light-emitting element P such as a blinking infrared light-emitting diode at one end of a rod-shaped body B such as a baton, which constitutes an input operation means according to the present invention. An ultrasonic generator T that intermittently generates ultrasonic waves in synchronization with the above blinking is provided adjacently.

In the following description, it is assumed for convenience that the light emitting element P and the ultrasonic generator T are located at the same position.

Figure (b) shows the configuration of a detection unit that works together with the rod-shaped body B to detect the position of the rod-shaped body B, more precisely, the positions of the light emitting element P and the ultrasonic generator T. , the first ultrasonic sensor s1 is on the X axis, and the second ultrasonic sensor S2 is on the Y axis.
However, a third ultrasonic sensor S3 is also provided on the X axis, and a light receiving element R such as an infrared sensor is further arranged at the origin, which is the intersection of these axes.

In addition, each of the above ultrasonic sensors S+, Sz, S3
Since it is sufficient that the X-axis, Y-axis, and Z-axis are not perpendicular to each other, three or more ultrasonic sensors may be provided.

Furthermore, although it is not necessary to provide the light receiving element R at the origin, which is the intersection of each axis, it is necessary to place the light receiving element R in a position where it will not be unable to receive the light from the light emitting element P of the rod-shaped body B due to being in the shadow of the operator. It is desirable to provide one.

When the light emitting element P of the rod-shaped body B and the ultrasonic generator T are located at the position shown as point A in FIG. and first to third ultrasonic sensors s.

The first to third ultrasonic sensors s1 are connected from one end of the rod-shaped body B depending on the time difference between S and the time when S receives the ultrasonic waves from the ultrasonic generator T of the rod-shaped body B.

The distances '1yZsr3 to St and Ss can be calculated, respectively.

Therefore, for example, these distances rI+r2.

By determining the coordinates of the intersection of three spherical surfaces with radius r3, the position of the tip of the rod-shaped body B can be obtained, and this can be supplied to the processor as three-dimensional position input data.

FIG. 1(C) shows a case where a second ultrasonic generator T' is added close to the grip part of the rod-shaped body B'. The frequencies of the ultrasonic waves generated by the sonic wave generator T and this second ultrasonic generator T' are:
For example, the frequencies are set to be different, such as 40 KHz and 20 KHz.

Note that the oscillation frequencies of these two ultrasonic generators T1 and T' may be any frequency that allows image frequencies to be distinguished even in consideration of frequency shifts due to the Doppler effect.

Then, the first to third ultrasonic sensors S+ of the detection section
, St, and S3 are configured to detect the time from when the light receiving element R receives the light from the light emitting element P of the rod-shaped body B' until it receives the ultrasonic wave for each of the above frequencies.
The positions of the tip and the grip of the rod B' can be determined independently, and the inclination of the rod B' can be determined by a line connecting the tip and the grip.

Moreover, the ultrasonic generator T of the rod-shaped body B shown in FIG.
If the first to third ultrasonic sensors S, 5zS3 detect the frequency of the ultrasonic waves received from the Similarly, the moving speeds at the tip and grip portion of the rod-shaped body B' shown in FIG. 2(C) can be determined.

As is clear from the above description, the light emitting element P, the light receiving element R and/or each ultrasonic generator T.

T' and the first to third ultrasonic sensors S, 52S3 can be arranged opposite to each other.

That is, the rod-shaped body B in FIGS. 1(a) and (C),
In addition to providing a light receiving element in place of the light emitting element P of B',
A light emitting element is provided in place of the light receiving element R in the detection section shown in FIG. 1 (b1), and first to third ultrasonic sensors S, S in the detection section shown in FIG.

In addition to providing an ultrasonic generator in place of S,
Ultrasonic sensors may be provided in place of each of the ultrasonic generators T and T' of the rod-shaped body B.

〔Example〕

FIG. 2 is a diagram showing an embodiment of the present invention in which one operator performs an orchestral performance using an electronic musical instrument, and the components corresponding to those in FIG. The same symbols are attached.

Figure 1 (rod-shaped body B as a baton explaining C1)
' is equipped with a light emitting part including a light emitting element P such as an infrared light emitting diode and a first ultrasonic generator T at its tip, and a second ultrasonic generator T' near the grip part. Ori,
Light emitting element P and first and second ultrasonic generators T, T
'' emits light or emits ultrasonic waves intermittently in synchronization with each other at the same frequency.

At this time, for example, 40
kHz, e.g. 20 KHz from the second ultrasonic generator T'.
The configuration is such that ultrasonic waves having mutually different frequencies of approximately K llz are output.

Operator M moves this rod-shaped body B like an orchestra conductor.
Manipulate ′.

The light from the light emitting element P of this rod-shaped body B' is transmitted to the light receiving element R.
The received light is amplified and waveform shaped by the amplification/shaping circuit IO, and the first to third ultrasonic sensors S,
The ultrasonic signals from the first and second ultrasonic generators T 1 and T ′ of the rod-shaped body B′ received by , S, , S are ultrasonic waves corresponding to the ultrasonic sensors St , St , and sl, respectively. Signal processing section 20. ．． 20. ．． It is input to 2L.

These ultrasonic signal processing units 20. ．． 20. ．． 20° have the same configuration, in FIG. After the ultrasonic signal is amplified and shaped by the amplification/shaping circuit 21,
The signal is sent to the frequency shift measurement circuit 22 and the time difference measurement circuit 23.

In this frequency shift measuring circuit 22, the frequency of the received ultrasonic signal and the predetermined first
and the second ultrasonic generators T and T', and calculate the moving speed of the ultrasonic generators T and T' of the rod-shaped body B' from this frequency difference caused by the Doppler effect. Then, the value of this frequency difference is sent to the processor 30.

In the time difference measuring circuit 23, the light receiving element R
The rise time and the amplification/shaping circuit 2 of the signal received by the amplification/shaping circuit 10 and amplified/waveform shaped by the amplification/shaping circuit 10
The time difference between the rise time of the ultrasonic wave received by the first ultrasonic sensor S, which has been amplified and shaped in step 1, is determined, and the time difference between the rise time and the rising time of the ultrasonic wave received by the first ultrasonic sensor S, which has been amplified and shaped in
, to obtain the position of T', each ultrasonic signal processing unit 20.
, 2L, 20. This time difference from the processor 30
supply to.

In this processor 30, the rising time of the light received by the light receiving element R and the first to third ultrasonic sensors s,
The first and second ultrasonic generators T of the rod-shaped body B' are determined based on the time difference between the rise time of the ultrasonic waves received at S and S3 and the frequency difference caused by the above-mentioned Doppler effect.
, calculate the respective positions and moving speeds of T',
Furthermore, the inclination of the rod-shaped body B' is calculated from the values calculated in this way.

In this way, the position, speed, inclination, etc. of the rod-shaped body B' are
For example, by calculating at time intervals of about 0.1 seconds, it is possible to continuously input data on the state of the rod-shaped body B' to the processor 30. It is possible to control the sharpness, etc. using a conversion table prepared in advance.

As an example of this conversion table, the direction of the rod-shaped body B' is used as an instruction for selecting the above part, and the tempo is specified such that the longer it takes for the tip of the rod-shaped body B' to return to its original position, the slower the tempo is. In addition, the moving range of the tip of the rod-shaped body B' may be used as an indication of strength, such as increasing the volume as the moving range of the tip of the rod-shaped body B' in a period such as the past one second is large.
Furthermore, the greater the speed change of the tip of the rod-shaped body B in the past second, the crisper the performance, and conversely, the smaller the speed change, the smoother the performance.
The movement range of the tip of ′ can be used as an instruction for controlling the sharpness.

The data obtained by such an instruction, or the data obtained by modifying the music data recorded on an appropriate medium by the data obtained by such an instruction, is transmitted to the sound source 4.
0. ．． 40□, . Musical tones are output from the speakers 70, , TO□.

Therefore, the operator M can control the generation and reproduction of musical tones by operating the rod-shaped body B' in the same manner as when conducting an orchestra.

In the above embodiment, the data input method according to the present invention is applied to a performance using an electronic sounding musical instrument, but the present invention is not limited to such use. Needless to say, this can be used for instructions on television images such as in a CAI system.

〔Effect of the invention〕

According to the present invention, the difference between the speed of light and the speed of sound waves is used to determine a plurality of distances from a reference position to the tip or the tip of the rod-shaped body and the grip, and three-dimensional position data is obtained from this. Therefore, not only can the device be simplified, but also the moving speed can be detected by using the Doppler effect, so this moving speed can also be used as input data.

In addition, since multiple ultrasonic generators are provided at different positions along the length of the rod, the inclination of the rod can be determined, which has the special effect of allowing the inclination of the rod to be used as input data. can be achieved.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the principle of the present invention, and FIG. 2 is a block diagram showing the configuration of an embodiment in which the present invention is applied to music instructions.

Claims (2)

[Claims] (1) A rod-shaped body (B) provided with at least one end thereof a light-emitting part (P) that flashes and an ultrasound generator (T) that generates intermittent ultrasound in synchronization with the flashing, and light from the light-emitting part at least one light receiving section (R) that detects the ultrasonic waves and a plurality of ultrasonic receiving sections (S
_1, S_2S_3), and the rod-shaped Calculate the distance from the body to the ultrasound receiving unit, determine the position of the rod based on the distances from the rod-shaped body to the ultrasound reception unit calculated by each of the plurality of ultrasound reception units, and determine this position. A data input method characterized by inputting data into a processor system. (2) The rod-shaped body is further provided with a second ultrasonic generator (T') that generates ultrasonic waves of a different frequency from that of the ultrasonic generator in synchronization with the blinking at different positions in the length direction. The data input method according to claim (1), characterized in that: