Canteen cad sweeping device with voice recognition and application method

Abstract

The invention provides a canteen card sweeping device with voice recognition and an application method thereof, and relates to the technical field of card sweeping devices. The device comprises a mobile equipment terminal, a central processing unit and an LED display card sweeper; the central processing unit comprises a wireless network system module, a voice signal receiver, a voice recognition system and an A / D converter; the mobile equipment terminal is connected with the voice signal receiver via the wireless network system module; the voice signal receiver is connected with the voice recognition system; the voice recognition system is used for performing denoising treatment on a voice command, extracting features of the voice signal, building a GMM-HMM model by using a method of training a Gaussian mixing model by using a hidden Markov model (HMM) to acquire the maximum likelihood probability of each feature, and outputting a word corresponding to the feature according to the maximum likelihood probability; the voice recognition system is connected with the A / D converter; the A / D converter is connected with the LED display card sweeper. According to the device, the operation response sensitivity can be improved, and the card sweeping and meal buying speed of the canteen can be improved.

Description

technical field [0001] The invention relates to the technical field of card swiping devices, in particular to a canteen card swiping device with voice recognition and a use method. Background technique [0002] It is a common phenomenon in most canteens to queuing up to swipe cards to eat meals, but the existing card swipe devices need to manually enter the number of swipe cards by pressing the keys, and then the queuing personnel will swipe the cards inductively. Input numbers by way, and then swipe the card, the action is slow and the manual key input is prone to errors, resulting in too long waiting time in line and low speed. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a canteen card swiping device with voice recognition and a method of use aiming at the deficiencies of the above-mentioned prior art. rate. [0004] In order to solve the problems of the technologies described above, the technical solutio...

AI Technical Summary

Problems solved by technology

[0002] It is a common phenomenon in most canteens to queuing up to swipe cards to eat meals, but the existing card swipe devices need to manually enter the number of swipe cards by pressing the keys, and then the queuing personnel will swipe the cards inductively. Enter the number by way, and then swipe the card, the action is slow and the manual key input is prone to errors, resulting in too long waiting time in line and low speed

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