Method for judgment of drinking using differential energy in time domain, recording medium and device for performing the method
First Claim
1. A computer implemented method for determining whether alcohol is consumed by a person by using at least one processor for executing a specific computer software to perform steps comprising:
- receiving an input voice signal from said person via a microphone sensor;
forming a voice frame of the input voice signal;
determining whether the formed voice frame corresponds to a voiced sound;
forming a plurality of effective frames by converting the input voice signal from said person according to a result of the voiced sound determination;
generating an original signal of each of the plurality of effective frames and a difference signal of the original signal;
computing a first average energy of the original signal and a second average energy of the difference signal for each of the plurality of effective frames;
determining whether alcohol is consumed by said person based on a difference between the first average energy and the second average energy, andoutputting a result of a determination whether alcohol is consumed by said person who is located in a remote location.
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Accused Products
Abstract
An alcohol consumption determination method includes detecting a plurality of effective frames of an input voice signal; detecting a difference in signal of within the original signal of each of the effective frames; detecting average energy of the original signal and average energy of the difference signal for each of the effective frames; and determining whether alcohol has been consumed based on a difference between the average energy of the original signal and the average energy of the difference between the signals for each effective frame. Accordingly, it is also possible to determine, from a remote location, whether a driver or an operator remote has consumed alcohol and the degree of inebriation by using a difference signal energy method using a voice signal, thus preventing an accident caused by a operation vehicles and machines under the influence of alcohol.
45 Citations
18 Claims
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1. A computer implemented method for determining whether alcohol is consumed by a person by using at least one processor for executing a specific computer software to perform steps comprising:
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receiving an input voice signal from said person via a microphone sensor; forming a voice frame of the input voice signal; determining whether the formed voice frame corresponds to a voiced sound; forming a plurality of effective frames by converting the input voice signal from said person according to a result of the voiced sound determination; generating an original signal of each of the plurality of effective frames and a difference signal of the original signal; computing a first average energy of the original signal and a second average energy of the difference signal for each of the plurality of effective frames;
determining whether alcohol is consumed by said person based on a difference between the first average energy and the second average energy, andoutputting a result of a determination whether alcohol is consumed by said person who is located in a remote location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer implemented device including at least one processor for executing a specific computer software to determine whether alcohol is consumed by a person, the computer implemented device comprising:
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a microphone sensor receiving an input voice signal from said person; a frame forming unit configured to form a voice frame of the input voice signal from said person; a voiced sound determination unit configured to determine whether the voice frame corresponds to a voiced sound; an effective frame detection unit configured to detect a plurality of effective frames by converting the input voice signal from said person according to a result of the voiced sound determination; a difference signal detection unit configured to detect a difference signal of an original signal of each of the plurality of effective frames; an energy detection unit configured to detect a first average energy of the original signal and a second average energy of the difference signal for each of the plurality of effective frames; and an alcohol consumption determination unit configured to determine whether alcohol is consumed by said person based on a difference between the first average energy of the original signal and the second average energy and output a result of a determination whether alcohol is consumed by said person who is located in a remote location. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification