CN218676430U

CN218676430U - Sound electronic name card circuit

Info

Publication number: CN218676430U
Application number: CN202221746713.9U
Authority: CN
Inventors: 张语彦; 朱小刚; 刘鹏; 张�浩
Original assignee: Changzhou Vocational Institute of Mechatronic Technology
Current assignee: Changzhou Vocational Institute of Mechatronic Technology
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2023-03-21
Anticipated expiration: 2032-07-08

Abstract

The utility model relates to an electronic business card technical field especially relates to vocal electronic business card circuit, include: the device comprises an MCU controller, a voice recognizer and a loudspeaker, wherein the MCU controller is electrically connected with the voice recognizer and the loudspeaker respectively; the voice recognizer amplifies the voice signal, extracts the characteristics, decodes, matches the characters and outputs voice response characters; and the MCU controller plays the voice response words through the loudspeaker. The utility model discloses vocal electronic business card can play unit or individual "sound sign" through the mode of sound, makes social mode more lively, personally relevant and effective, can leave dark impression for the user in the occasion of exhibition, propaganda.

Description

Sound electronic name card circuit

Technical Field

The utility model relates to an electronic business card technical field especially relates to vocal electronic business card circuit.

Background

The traditional name card, also called card, is a paper sheet for identifying names and their organizations, company units and contact methods, on which information of names, addresses, telephone numbers, mailboxes, related products or services, etc. of units or individuals are printed. The business card is the most effective method for new friends to know each other and introduce themselves, and is also a way to promote and introduce themselves to each other. The traditional paper business card has simple and single function and lower cost, but in an exhibition, the occasion of publicity is easy to be ignored.

SUMMERY OF THE UTILITY MODEL

The utility model solves the problems that: the sound electronic business card can play the 'sound identification' of a unit or an individual in a sound mode, so that the social contact mode is more vivid, intimate and effective, and a deep impression can be left on the user in exhibition and publicity occasions.

In order to solve the technical problem, the utility model provides an audible electronic business card circuit, include: the voice recognizer is electrically connected with the MCU controller and the loudspeaker respectively; the voice recognizer amplifies the voice signal, extracts the characteristics, decodes, matches the characters and outputs voice response characters; and the MCU controller plays the voice response words through the loudspeaker.

Further, PO0-PO7, LD-A0, LD-RD, LD-WR, LD-MD and LD-IRQ pins of the MCU controller are respectively connected with PO0-PO7, LD-A0, LD-RD, LD-WR, LD-MD and LD-IRQ pins of the voice recognizer; the 9 th and 10 th pins of the speech recognizer are connected with the microphone pin, and the 25 th and 26 th pins of the speech recognizer are connected with the loudspeaker pin.

Further, the voice recognizer adopts an LD3320 chip, and the MCU controller adopts an STC15W chip;

further, the method also comprises the following steps: the MCU controller is electrically connected with the first indicator light, the second indicator light, the first button and the second button; the first button is used for controlling the business card circuit to be awakened and controlling the first indicator light to emit light; the business card circuit is controlled to be dormant through the second button, and the first indicator light is controlled to be turned off;

further comprising: the microphone is connected with the voice recognizer and inputs the voice of the user into the voice recognizer, and the second indicator lamp flickers when the microphone speaks.

Further, the method also comprises the following steps: and the LED lamp is connected with the MCU controller and is controlled to be turned on and off by pressing the first button for a short time.

Further, the method also comprises the following steps: the onboard lithium battery supplies power for the MCU controller.

The utility model has the advantages that:

1. the voice playing and automatic response can be realized according to the voice password of the user;

2. the size of the LED flashlight is consistent with that of a paper business card, the use is convenient, and the LED flashlight has an auxiliary LED flashlight function.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a circuit diagram of the electronic business card of the present invention;

FIG. 2 is a 3D front view of the sound electronic business card of the present invention;

FIG. 3 is an MCU controller chip of the present invention;

FIG. 4 is a circuit of the button and the indicator light of the present invention;

FIG. 5 is a speech recognizer chip of the present invention;

fig. 6 is a power supply circuit of the present invention.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1, the present embodiment provides an acoustic electronic business card circuit, comprising: the voice recognizer is electrically connected with the MCU controller and the loudspeaker respectively; the voice recognizer amplifies the voice signal, extracts the characteristics, decodes, matches the characters and outputs voice response characters; and the MCU controller plays the voice response words through a loudspeaker.

Like fig. 2 the utility model discloses a 3D main view of sound electronic business card, the integrated circuit of business card adopt QFN and QFP encapsulation, and the pin point distance of these two kinds of packaging technique is all below 0.5mm, and the short self-inductance coefficient of consequently of pin distance, wiring resistance are very low, have good frequency characteristic. Meanwhile, the bottom of the package is generally provided with a radiating pad which is in precise contact with and transfers heat with the PCB, so that the high-density assembled circuit board has better thermal stability; integrated packaging technology also enables circuit boards to be designed and processed to a thinner thickness.

The integrated circuit and other electronic components of the sound electronic business card are distributed on the positive piece of the PCB, and no component is arranged on the reverse side, so that the reverse side of the sound electronic business card is flat. The method is characterized in that related text and picture information similar to paper business cards is printed on the front and the back of the audio electronic business card, so that the audio electronic business card has the basic social attribute of the paper business card, and the top half of the front of the PCB is printed with unit purposes, unit names, titles and contact ways.

FIG. 3 shows an MCU controller chip with model number STC15W _ LQFP32;

fig. 4 shows a circuit of the button and the indicator light, which comprises: the first button S1, the second button S2, the first indicator light LED1 and the second indicator light LED2 are respectively connected with pins SW1, SW2, LED2 and LED3 of the MCU controller;

FIG. 5 shows a speech recognizer chip, model LD3320; the LD3320 adopts ASR speech recognition technology, and the sound signal input by the microphone cannot be directly processed by the MCU controller, so that it needs to be converted into digital information by ASR speech recognition coding and extract the features therein, and the sound signal is generally cut into small segments according to a short time interval during coding to become frames, and for each frame, the MFCC features of the sound signal can extract the features in the signal by a certain rule (e.g. MFCC features) and change them into a multidimensional vector; each dimension in the vector is a feature of the frame signal; the voice signal is subjected to input amplification, feature extraction, decoding and character matching, and the voice is recognized and specific characters are output for recognition and control of the MCU controller or the embedded circuit.

The ASR speech recognition chip completes the whole process from speech input to character recognition, and the ASR speech chip can internally recognize 50-100 retrieval words only by importing a specific keyword list according to needs in the application process of secondary development of a user.

PO0-PO7, LD-A0, LD-RD, LD-WR, LD-MD and LD-IRQ pins of the voice recognizer are respectively connected with PO0-PO7, LD-A0, LD-RD, LD-WR, LD-CS, LD-RS, LD-MD and LD-IRQ pins of the MCU controller;

pins

9 and 10 of the voice recognizer are connected with pins MK1 and mic2 of the microphone through capacitors C3 and C2, and

pins

25 and 26 of the voice recognizer are respectively connected with pins of the loudspeaker; the LD-CS and LD-RS of the voice recognizer and the MCU controller are connected with a power circuit.

Fig. 6 shows a power supply circuit, which includes an on-board lithium battery, a fuse F1, a resistor R1, and a capacitor C1, wherein the on-board lithium battery is charged through a TYPE-C interface P1, and a VCC pin of the on-board lithium battery is connected to a pin 10 of an MCU controller chip; the VCC pin of the on-board lithium battery is connected with

pins

29, 43, 47 of the speech recognizer chip, thereby supplying power to the MCU controller chip and the speech recognizer chip.

The working principle is as follows:

and (4) starting up and awakening: pressing the first button for a long time (more than 2 seconds), waking up the system to start up, and lighting the first indicator lamp for indication; standby and dormancy: the second button is pressed for a long time (more than 2 seconds), the system enters a standby dormant state, and the first indicator lamp is turned off; after the electronic business card is started, a voice call is carried out on a microphone, for example, shouting 'little doctor, little doctor', the electronic business card receives and recognizes the voice, the second indicator light flickers, and the 'I' is answered by the voice of the loudspeaker; the question may continue with: "introduce you oneself" and answer "I am the XX professor of the XX college"; the question may continue with: what is what major specialties are? "answer" mechatronics specialty ", etc.; after the machine is started, the first button S1 is pressed for a short time (within one second), the LED lamp (LED 1) is lightened, and the LED lamp is turned off after the first button is pressed for a short time again; the plate-mounted lithium battery is charged through the TYPE-CUSB interface, and the lithium battery has a charging and discharging protection function.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. An electronic business card circuit comprising: the voice recognizer is electrically connected with the MCU controller and the loudspeaker respectively; the voice recognizer amplifies the voice signal, extracts the characteristics, decodes, matches the characters and outputs voice response characters; and the MCU controller plays the voice response words through the loudspeaker.

2. An audible electronic business card circuit as recited in claim 1, wherein: PO0-PO7, LD-A0, LD-RD, LD-WR, LD-MD, LD-IRQ pins of the MCU controller are respectively connected with corresponding pins of the voice recognizer; the 9 th and 10 th pins of the speech recognizer are connected with the microphone pin, and the 25 th and 26 th pins of the speech recognizer are connected with the loudspeaker pin.

3. The audio electronic business card circuitry of claim 2, wherein: still include first pilot lamp, second pilot lamp, first button and second button, first pilot lamp, second pilot lamp and first button and second button and MCU controller electric connection.

4. The audio electronic business card circuitry of claim 2, wherein: the voice recognizer adopts an LD3320 chip.

5. The audio electronic business card circuitry of claim 2, wherein: the MCU controller adopts an STC15W chip.

6. The voiced electronic business card circuit according to claim 1, further comprising: and the LED lamp is connected with the MCU controller.

7. The audible electronic business card circuit of claim 1, further comprising: the on-board lithium battery is connected with the MCU controller and supplies power to the MCU controller.