JPS62172397A - Voice input/output unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an audio input/output device that inputs audio data via a wireless transmission system, and particularly relates to an audio input/output device that inputs audio data via a wireless transmission system. Related to a voice input/output device suitable for collecting data using f/! [Prior art] ? A voice input/output device that recognizes and captures necessary data has various applications, one example of which is data collection by moving to an arbitrary location using a wireless mobile terminal.

By the way, such a voice input/output bag σ for data collection has conventionally been used.For example, as disclosed in Japanese Patent Application Laid-open No. 55-44624, a mobile terminal has a wireless input signal for transmitting voice input signals. It is known to be equipped with a transmitter and a wireless receiver for receiving commands from the fixed station side, which allows an operator to manually input data one by one through voice dialogue.

[Problem that the invention seeks to solve]

With the above-mentioned conventional technology, even when the fixed station receives poorly received radio waves from the mobile terminal, such as when used in an environment with a lot of radio wave noise, the mobile terminal 1. When the mobile terminal finally stops receiving normal voice input, the operator cannot tell whether the cause is due to the voice input operation or not. There was a problem that input operations were obstructed.

This invention addresses the problems of the prior art as described above, and when it becomes impossible to perform normal voice input due to radio wave interference, it is immediately recognized that the problem is not caused by the voice input operation of the worker, and unnecessary input is performed. To provide a voice input/output device that can avoid causing confusion to workers.

[Means for solving problems]

According to the present invention, the above problem can be solved by superimposing an identification signal other than the voice signal on the wireless transmission channel from the mobile terminal side to the fixed station, constantly detecting this on the fixed station side, The problem can be solved by controlling the operation instructions to the mobile terminal.

[For production]

When radio waves from the mobile terminal side cannot reach the fixed station due to radio interference, or due to interfering radio waves such as noise, the identification signal cannot be detected, so the fixed station cannot be recognized by the mobile terminal side. It is possible to inform the operator that the cause of the problem is not due to the worker, making it possible to take appropriate measures.

〔Example〕

The following is a description of the audio input/output device according to the present invention.

This will be explained in detail with reference to the illustrated embodiment.

FIG. 1 shows an embodiment of the present invention. In the figure, A represents a fixed station including a voice data recognition section, and B represents a terminal section on the voice data input side.

In the fixed station A, the antenna 1 receives radio waves from the terminal unit B, and the audio signal is supplied from the audio wireless transmitter/receiver unit 2 to the audio input unit 3, and the audio input unit 3 performs voice recognition in response to this. The resulting data is input to the data processing section 4.

The data processing unit 4 is composed of a microcomputer and the like.1. What processing is required based on this voice recognition data? If there is no response, an answerback signal corresponding to the data at this time is supplied to the voice synthesis section 5, and thereby the voice synthesis section 5 generates a voice signal for the necessary message. Then, this audio signal is sent from the audio wireless transmitting/receiving section 2 to the terminal section B via the antenna 1.

On the other hand, in the terminal unit B, the signal from the fixed station A received by the antenna 1o is supplied to the audio wireless transmitting/receiving unit 11,
As a result, a voice answerback or a message for guidance is given to the worker from the speaker 12.

Then, the worker inputs voice from the microphone 13 in accordance with the answer back or guidance by this voice message, and thereafter, data input in an interactive format is sequentially performed by voice.

In the fixed station A, the data taken in by the data processing section 4 is stored in the storage section 6, and further supplied to the display section 7 as required. Further, various operations by the operator at the fixed station are performed using an operation section 8 consisting of a keyboard or the like.

By the way, 5 or more is the same as the conventional device.

In this embodiment, the following configuration is further added.

First, the terminal section B is provided with a signal code generating section 14, which generates a signal code signal consisting of a signal of a specific frequency that does not affect the recognition of the audio signal to the transmitting circuit of the audio wireless transmitting/receiving section 11. It is designed to be supplied as a modulated signal to As a result, while the power switch of this terminal section B is turned on, the signal code signal described above is always sent from the antenna 10 of this terminal section, regardless of the existence of the audio signal from the microphone 13. Modulated radio waves are being transmitted.

On the other hand, in accordance with this, a signal code demodulation section 9 is provided in the fixed station A, and a signal code signal S is extracted from the signal received by the receiving circuit of the sweat radio transmitting/receiving section 2 via the antenna 1. The shot is supplied to the data processing section 4.

At the same time, from the audio transmitting/receiving section and the receiving circuit 1,
The structure is such that only when a carrier is detected by the antenna 1, a carrier input signal 4':i/C representing this is outputted, and this signal C is also supplied to the data processing section 4. It has become.

Based on this premise, the data processing unit 4 constantly checks these signals S and C, and on the condition that both of these signals exist, takes in data and performs answerback or response accordingly. When guidance is performed and the signal S disappears, even if the signal C
Even if there is a signal, it is assumed that it is not due to a signal transmitted from terminal unit B, and if this continues for a certain period of time or more, a message is sent via the voice synthesis unit 5 to the effect that "radio interference" has occurred. Send it to the terminal department and notify the terminal worker.

Therefore, according to this embodiment, even if there is a continuous answerback indicating that recognition is poor or unrecognizable during voice data input, if this is due to radio wave interference due to noise, etc., after a predetermined period of time has elapsed. , a message to that effect will be sent to the terminal side, allowing the terminal worker to continue working while always accurately understanding the cause of poor or unrecognized data. Unnecessary stress caused by work can be sufficiently suppressed.

Next, the above-mentioned operation by the data processing section 4 will be explained using flowchart 1- in FIG.

When this process starts, first, in step 100, various processes necessary for the σ beginning of the speech recognition operation are performed as initial settings.

Next, in step 110, the signal C is checked to determine the presence or absence of a carrier, and processing is performed to wait until the carrier appears.

If the result in step 110 is that there is a carrier, the primary step is step 120 (inspect il1 S and determine the presence or absence of a signal code).

If the result in step 120 is that there is a signal code, then it is determined that the signal is from terminal B anyway, and the process proceeds to step 130, where the received data at that time is input from the audio input section 3. Take in.

In step 140, the input of audio data is completed.

When the voice data is inputted, the process returns to step 110, and the data processing work is continued by repeating this process.

On the other hand, if the result in step 120 is that there is no signal code, the process proceeds to step 150, where it is checked whether or not a predetermined period of time has elapsed. Return to step 110 as it is, but if the result is YES, proceed to the next step 160.
1, a signal is supplied to the voice synthesis section 5, a predetermined message such as "radio wave interference" is sent to the terminal side 1, and the process returns as is.

Here, the signal code signal generated by the signal code generator 14 of 5@end B will be explained. As mentioned above, this signal is Ili! iI fixed ff) Audio input section 3 of A
It must be such that there is no risk of adversely affecting the speech recognition processing operation even if it is incorporated into the system.
Therefore, this signal code signal is, for example, the lower side of the audio frequency band.

Alternatively, a single frequency signal (No. 1) of a frequency higher than that (or a single frequency signal of a frequency that is not legally used for voice recognition processing in the RF voice input unit 3 even within the voice frequency band) may be used.

Further, as the carrier signal C, an AGC signal or a squelch signal, which is commonly used in receiving circuits, etc. may be used.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to automatically identify whether or not the radio waves received at the fixed station side are from the terminal unit. If erroneous recognition or inability to recognize occurs frequently, it can be immediately determined whether this is due to a defect in the worker's voice or speech, or whether it is due to radio wave interference due to noise etc. Able to perform accurate work at all times without being forced to give.

Furthermore, according to the present invention, the existence of 1'6° wave interference due to noise etc. can be automatically identified at all times, making it unnecessary to use special measuring instruments for such 1jh6 checks. Therefore, it is possible to reduce costs.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a flowchart 1- for explaining its operation. A: Fixed station, 1.10: Antenna, 2.1
1... Audio wireless transmitter/receiver section, 3... Audio input section. 4...Data processing section, 5...Speech synthesis section, 6.
...Storage section, 7...Display section, 8...Operation section,
9...Signal coat demodulation unit, 12...Speaker, 13...Microphone, 14...Signal code generation unit. Figure 1

Claims (1)

[Claims] 1. In an audio input/output device that includes an audio data input side terminal unit and an audio data recognition unit that are connected via a wireless transmission system, and performs data input by voice in an interactive manner, the audio data of the wireless transmission system is An identification signal applying means is provided for superimposing a predetermined identification signal on a transmission channel from the input side terminal section to the voice data recognition section, and on the condition that the identification signal exists in the transmission channel in the voice data recognition section, the above A voice input/output device characterized in that it is configured to issue data input operation instructions in an interactive format.