Voice recognition device, voice recognition method, and non-transitory computer readable recording medium

A voice recognition method in a voice recognition device that performs voice recognition on a command of a mobile body, the voice recognition method comprising:

• acquiring input voice data of an input command uttered by a speaker who gets on the mobile body;
• acquiring a plurality of registration commands uttered by the speaker in advance from a database;
• comparing the plurality of registration commands with the input voice data to estimate a registration command corresponding to the input command;
• presenting an estimation result;
• acquiring an error instruction indicating that the estimation result is an error;
• determining, in a case where the error instruction is acquired, a correct command corresponding to the input command based on an operation by the speaker;
• controlling the mobile body based on the correct command;
• storing, in the database, the correct command and the input voice data in association with each other, to update the database;
• and
• repeating at least the acquiring input voice data, the acquiring a plurality of registration commands from the updated database and the comparing using the updated database,
• wherein the determining includes:
• estimating a correct command based on a monitoring result of an operation on the mobile body after input of the error instruction, and
• presenting, in a case where stopping of the mobile body is detected, the estimated correct command, acquiring a check instruction for the estimated correct command, and determining the correct command based on the check instruction.

A non-transitory computer readable recording medium storing a voice recognition program for causing a computer to function as a voice recognition device that performs voice recognition on a command of a mobile body, the program for causing the computer to perform:

• acquiring input voice data of an input command uttered by a speaker who gets on the mobile body;
• acquiring registration voice data of a plurality of registration commands uttered by the speaker in advance from a database;
• comparing each piece of the registration voice data with the input voice data to estimate a registration command corresponding to the input command;
• presenting an estimation result;
• acquiring an error instruction indicating that the estimation result is an error;
• determining, in a case where the error instruction is acquired, a correct command corresponding to the input command based on an operation by the speaker;
• controlling the mobile body based on the correct command;
• storing, in the database, the correct command and the input voice data in association with each other, to update the database;
• and
• repeating at least the acquiring input voice data, the acquiring a plurality of registration commands from the updated database and the comparing using the updated database,
• wherein the determining includes:
• estimating a correct command based on a monitoring result of an operation on the mobile body after input of the error instruction, and
• presenting, in a case where stopping of the mobile body is detected, the estimated correct command, acquiring a check instruction for the estimated correct command, and determining the correct command based on the check instruction.