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Three-dimension voice recognition method for smart canteen card readers

A technology of speech recognition and punch card machine, applied in speech recognition, speech analysis, instruments, etc., can solve the problem of low efficiency of settlement methods, and achieve the effect of improving settlement efficiency

Inactive Publication Date: 2013-09-18
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the inefficiency of the settlement method of the existing canteen punch card machine, the present invention provides a three-dimensional voice recognition method for the smart canteen punch card machine

Method used

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  • Three-dimension voice recognition method for smart canteen card readers

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Embodiment Construction

[0013] refer to figure 1 and figure 2 . The three-dimensional voice recognition method of the intelligent canteen punch card machine of the present invention specifically includes three steps of identifying the location of the customer, determining the validity of the location of the customer, and identifying the consumer demand of the customer:

[0014] Step 1: Sound Sensor A 1 ,A 2 ,A 3 , O receives the voice of the same customer at different times, assuming that the speed of sound in the air is ν, four sensors A 1 ,A 2 ,A 3 , O received the sound signal The time is t 1 ,t 2 ,t 3 ,t 4 , and assume t 1 >t 2 >t 3 >t 4 .

[0015] Take the plane of the card machine as the X-Z plane, and the vertical plane as the X-Y plane, A 1 A 2 The midpoint O is the coordinate origin to establish an O-XYZ three-dimensional coordinate system, and the coordinates of the four sound sensors are A 1 (-a,0,0), A 2 (a,0,0),A 3 (0,0,b), O(0,0,0), assuming that the sound source ...

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Abstract

The invention discloses a three-dimension voice recognition method for smart canteen card readers, aiming to solve the technical problem of low settlement efficiency of existing canteen card readers. The technical scheme includes utilizing voice sensors A1, A2, A3 and O to receive voice of the same customer at different time, then calculating position coordinates of the customer according to difference of times of receiving the voice; judging whether the position of the customer is within a predefined effective range or not; submitting the voice information to a card reader server through a card reader main controller, calculating the total amount of consumption of the customer, feeding the total amount back to a card reader terminal and displaying the total amount on an LED display screen. Whether the customer is within the effective range or not is judged according to a three-dimension voice source; if the voice source is effective, then the voice of the customer is submitted to the card reader server, and effective required information is extracted through voice recognition software of the card reader server, and the required information and the corresponding total amount of consumption are fed back to the card reader terminal. By the three-dimension voice recognition method, positions of customers can be recognized accurately and settlement efficiency of the canteen card readers is improved.

Description

technical field [0001] The invention relates to a recognition method for a canteen punch card machine, in particular to a three-dimensional voice recognition method for an intelligent canteen punch card machine. Background technique [0002] The canteens of institutions like schools generally have relatively fixed opening hours, resulting in a rapid increase in the number of customers in the canteen at the same time, and a large number of people queuing up at the canteen window. Improving the service efficiency of the canteen window has become a key measure to alleviate the above problems. [0003] At present, many large canteens use IC card swiping devices at the meal window. The main structure of the device includes: the main controller of the card machine, the card swiping device, the keyboard, and the LED display. The controller is connected, and the data information is processed and managed by the main controller of the card machine. However, this traditional check-in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/00G07G1/12
Inventor 史丽丽郭银洲张承武朱煜明
Owner NORTHWESTERN POLYTECHNICAL UNIV
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