JPH0113873B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a voice-responsive sewing machine that inputs operation commands for the sewing machine by voice, performs voice recognition, and performs operations in response to the voice commands.

Conventionally, various automated sewing machines have been used, but since operations such as starting, stopping, and setting stitch patterns are all performed by operating a switch, it is difficult for the operator to manually turn the switch on and off. When carrying out this process, operations such as workpiece cloth feed guide became inaccurate, and the seam formation line sometimes deviated from the desired position.

This invention focuses on the above points, and by making it possible to perform response actions based on voice input, it eliminates the need for switches placed on the bracket arm of the sewing machine, and frees the worker's hands and feet from operating the sewing machine. An object of the present invention is to provide a sewing machine capable of voice response and capable of easily issuing sewing machine operation commands.

In order to achieve this object, the present invention includes a voice input device disposed in the sewing machine frame, a voice recognition circuit for recognizing the content of the electrical signal from the voice input device, and a recognition result from the voice recognition circuit. a discrimination means for discriminating whether the result is a motion recognition result representing the type of sewing machine motion or a result of permission recognition for the sewing machine motion; signal generating means for validating a motion recognition result recognized before the motion recognition result and generating a motion command signal for instructing a predetermined sewing machine motion according to the motion recognition result; a command control circuit having a display means provided on the sewing machine frame for displaying a motion recognition result to a worker; and a command control circuit that receives a motion command signal from the command control circuit and executes a predetermined sewing machine motion. The device is equipped with an operating device that performs the following operations.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a sewing machine that operates in response to a voice, and the front surface of the bracket arm 2 of the sewing machine is equipped with a device that responds to the voice emitted by the sewing machine operator. A microphone 1 serves as a voice input device for converting into an electrical signal, a display 3 such as a Kirayakta display displays the recognition result of the voice input as characters, and a pattern display 4 displays the stitch pattern specified by the voice input. is located. The pattern display 4 is provided with a plurality of selectable patterns 5 and a light emitting diode 6 that displays the selected pattern by lighting. 12 is a presser bar, 11 is a presser foot fixed to its tip, 9
1 is a sewing machine needle, and 13 is a feed dog disposed in the needle plate.

Next, the configuration of the electric circuit of the sewing machine will be explained with reference to the block diagram of FIG. The system extracts the envelope information of the frequency spectrum of the voice, sequentially divides and samples it at short intervals, performs voice recognition by comparing it with the already registered worker's voice pattern, and outputs the recognition data as a digital signal. be. 16 is a timing pulse generator that is connected to the main shaft of the sewing machine and outputs a pulse signal in response to the vertical movement of the needle 9; the timing pulse signal from now on is sent to the CPU 1.
0 and is used to control when to stop the sewing machine motor 18 and to form stitches.

CPU (central processing unit) 10 is a voice recognition circuit 1
A RAM (random access memory) 7 stores multiple recognition results such as the setting speed of the sewing machine motor 18, the needle stop position, and the type of stitch pattern, which are sequentially transferred from the sewing machine motor 5 to the RAM (random access memory) 7.
It functions as a command selection circuit 20 that temporarily stores the recognition results in the memory in the order in which they are transferred, and selects one command signal from a plurality of operation command signals according to the read recognition results.

Furthermore, the CPU 10 determines whether the recognition result input from the voice recognition circuit 15 is an operation recognition result representing the type of sewing machine operation, for example, starting, stopping, speed setting of the sewing machine motor 18, or specifying a stitch pattern. or permission to operate the sewing machine, e.g.
This serves as a means for determining whether the recognition result is a permission recognition result representing an "OK" voice signal from the operator in response to the action recognition result such as "start motor" displayed on the display 3. Furthermore, the CPU 10 is
The motor drive control circuit 8 serves as a signal generation means for validating the motion recognition result recognized before the permission recognition result and generates a motion command signal according to the motion recognition result, and operates the sewing machine motor 18, and This operation command signal is output to the stitch forming drive control circuit 22 that operates the forming actuator 17, and the determined motion recognition result is displayed on the display 3, or the voice recognition circuit 15 detects whether the voice input is not recognized or not. It has a function of displaying characters such as "repeat" on the display 3 when possible.

The ROM (read only memory) 14 encodes and stores a plurality of stitch data for forming stitches, and also stores a sewing machine operation control program as a program memory.
Stitch data and command signals for program progression are read out to the CPU 10 by signals from the CPU 10 .

The command control circuit 19 includes a CPU 10, a RAM 7,
It is composed of a ROM 14 and a display 3, and has a discriminating means for discriminating the above-mentioned recognition result, and a signal generating means for generating an operation command signal. Also,
Starting and stopping the sewing machine motor from CPU10,
A motor drive control circuit 8 that receives a speed command signal and controls the sewing machine motor 18, and a CPU 10.
Input the code signal specifying the stitch pattern from
Based on this signal, the seam forming actuator 17
a stitch forming drive control circuit 22 that operates to control the movement of the feed dog 13 and the swinging position of the needle 9, the sewing machine motor 18, and the stitch forming actuator 17.
The operating device 21 is configured as follows.

Next, the operation of the voice-responsive sewing machine will be explained. First, before using the sewing machine, the operator's voice commands, such as voices expressing start, stop, speed settings, needle stop positions, stitch patterns, etc., are input from the microphone 1, and the voice recognition circuit 15 The audio features are registered in the internal memory as a standard pattern. Next, the operation commands for the sewing work to be performed, such as the speed of the sewing machine motor 18, the stitch pattern, the needle position at the time of stop, the lateral swing width of the needle 9, or the amount of adjustment regarding the feed amount of the feed dog 13, are given. The worker sequentially inputs input into the sewing machine by voice using the microphone 1. At this time, the voice recognition circuit 15 extracts the characteristics from the voice signal from the microphone 1, compares this input pattern with the standard pattern of the voice signal already registered in the memory, and selects the closest standard pattern. Recognize audio signals. Then, CPU10 that received this recognition data
causes the display 3 to display the recognition result. At this time, the operator checks the displayed recognition results, such as "motor speed 3", "feed amount 4", "straight stitch", etc.
If the recognition is correct, the operation commands are sequentially stored in the RAM 7 while inputting the voice "OK" from the microphone 1 as a permission signal.

Next, with the work cloth placed in the specified position, a voice from the worker saying "start" is heard on the microphone 1.
When this is input, the voice recognition circuit 15 recognizes it, displays "Start" on the display 3, and in response, inputs an "OK" permission signal. At this time, the CPU 10 outputs the speed setting value stored in the RAM 7 and a motor starting operation command signal to the motor drive control circuit 8, and the sewing machine motor 18 is started. At the same time, data related to the specified stitch pattern is read from the RAM 7 to the CPU 10, and an operation command signal is output from the CPU 10 to the stitch formation drive control circuit 22. The stitch formation drive control circuit 22 then forms the specified stitch. A drive signal is output to the stitch forming actuator 17 so that the feeding movement of the feeding dog 13 and the swinging position of the needle 9 are controlled at a suitable timing.

Note that the drive control of the feed dog 13 and the needle 9 is performed using a pulse signal from the timing pulse generator 16.
It is performed every time there is an input to the CPU 10, for example,
Conventionally known multi-pattern sewing machine (Japanese Patent Application Laid-Open No. 50-37555)
The lateral movement and feeding of the needle are driven in the same way.
Then, the specified operation is executed, and a stitch pattern is formed on the work cloth.

When the worker inputs the voice command “stop” to the sewing machine when the specified sewing is completed, the CPU 10
Then, based on this recognition result, a stop command signal is immediately output to the motor drive control circuit 8, and the sewing machine motor 18 immediately stops at the predetermined needle position without receiving the permission recognition signal.

As described above, according to the voice-responsive sewing machine according to the present invention, a voice input device is disposed in the sewing machine frame, a voice recognition circuit for recognizing the content of the electrical signal from the voice input device, and a voice recognition circuit for recognizing the contents of the electrical signal from the voice input device are provided. a command control circuit that generates an operation command signal according to the recognition result of the voice recognition circuit; and an operation device that receives the operation command signal from the command control circuit and executes a predetermined sewing machine operation. , instead of using hands and feet to operate the sewing machine, the operator can give operation commands by voice, and can accurately perform workpiece cloth feed guide operations, as well as sewing machine operations such as pattern selection and various adjustment operations. can be easily carried out. Furthermore, by eliminating switches from the sewing machine frame, the external configuration can be simplified and its appearance can be made beautiful. The command control circuit also includes a determination means for determining whether the recognition result from the voice recognition circuit is a motion recognition result representing the type of sewing machine motion or a recognition result of permission recognition for the sewing machine motion, and In response to determining the recognition result, a motion command signal is issued for validating the motion recognition result recognized before the permitted recognition result and instructing a predetermined sewing machine motion according to the motion recognition result. The present invention includes a signal generating means for generating a signal, and a display means provided on the sewing machine frame for displaying the motion recognition result discriminated by the discrimination means to the operator.
The sewing machine does not malfunction due to confusingly similar voices, and the sewing machine can be operated accurately and safely by voice commands.

[Brief explanation of drawings]

The figures show one embodiment of the invention, with FIG. 1 being a perspective view of a sewing machine, and FIG. 2 being a block diagram of a sewing machine control circuit. 1...Microphone (voice input device), 3...
...Display unit, 7...RAM, 8...Motor drive control circuit, 10...CPU, 14...ROM, 15...
Voice recognition circuit, 16...timing pulse generator, 19...command control circuit, 20...command selection circuit, 21...operating device.

Claims (1)

[Scope of Claims] 1. A voice input device disposed on the sewing machine frame for converting the voice emitted by a sewing machine operator into an electrical signal according to the content of the voice; and an electrical signal generated from the voice input device. a voice recognition circuit for recognizing the content of the voice recognition circuit; and a determining means for determining whether the recognition result from the voice recognition circuit is a motion recognition result representing the type of sewing machine motion or a recognition result of permission recognition for the sewing machine motion. In response to the determination of the permission recognition result by the determining means, the operation recognition result recognized before the permission recognition result is validated, and a predetermined sewing machine operation is commanded in accordance with the operation recognition result. a command control circuit having a signal generating means for generating a motion command signal for the sewing machine; and a display means provided on the sewing machine frame for displaying the motion recognition result determined by the discriminating means to an operator. a voice-responsive sewing machine, comprising: an operation device that receives an operation command signal from the command control circuit and executes the predetermined sewing machine operation. 2. The command control circuit includes a memory that temporarily stores a plurality of recognition results sequentially transferred from the voice recognition circuit, reads the recognition results in the memory in the order in which they are transferred, and issues a plurality of operation commands according to the recognition results. 2. The voice-responsive sewing machine according to claim 1, further comprising a command selection circuit for selecting one command signal from among the signals. 3. The voice-responsive sewing machine according to claim 1, wherein the operating device is a sewing machine motor drive circuit for starting and stopping the sewing machine motor.