CN203799456U - Multifunctional noise monitoring voice prompt instrument - Google Patents

Abstract

A multifunctional noise monitoring voice prompter, which includes switch buttons, circuit boards, indicator lights, LED digital display tubes, loudspeakers and shells, and is characterized in that the switch buttons, indicator lights, LED digital display tubes and speakers are connected to the circuit through wires board, the circuit board is installed on the casing, and the switch buttons, indicator lights, LED digital display tubes and loudspeakers are respectively installed on the casing. The effect of the utility model is: it can realize sound collection, noise measurement and LED digital display of the digital tube; when the detected noise exceeds a certain value, an alarm is sent to achieve the function of friendly reminder; it has a built-in hour hand chip and a temperature sensor, and has functions such as clock and temperature.

Description

A Multifunctional Noise Monitoring Voice Prompt Instrument

technical field

The utility model relates to a voice prompting instrument, in particular to a multifunctional noise monitoring voice prompting instrument.

Background technique

The prompter can emit a friendly prompt sound when the external sound exceeds the limited decibel, which can produce a more acceptable effect and stop the discordant sound, so it can be widely used in dormitories, hospitals, libraries, self-study rooms, etc. place.

Contents of the invention

The purpose of this utility model is to provide a multi-functional noise monitoring voice prompter, which can give a friendly reminder in a place that needs to be quiet because the sound is too high, instead of being directly stopped by other people, it is practical and useful extensive advantages.

The utility model is realized in this way, it comprises switch button, circuit board, indicator light, LED digital display tube, loudspeaker and casing, and microphone, AC/DC conversion circuit module, V/F conversion circuit module are installed on the circuit board ﹑Single-chip microcomputer, hour hand chip, temperature sensor, voice chip and audio power circuit module; it is characterized in that: switch buttons, indicator lights, LED digital display tubes and speakers are connected to the circuit board through wires, the circuit board is installed on the shell, and the shell is respectively installed with Switch buttons, indicator lights, LED digital display tubes and speakers.

According to the utility model, on the circuit board, the microphone is connected to the AC-DC conversion circuit module, the AC-DC conversion circuit module is connected to the V/F conversion circuit module, the V/F conversion circuit module is connected to the single-chip microcomputer, and the single-chip microcomputer is respectively connected to the clock chip, the temperature sensor and the voice The chip and the voice chip are connected to the audio power circuit module, the audio power circuit module is connected to the speaker, and the speaker is placed on the outer casing. The circuits on the entire circuit board are connected through certain circuit connection rules and methods, so that the device can be used under normal power.

Its working principle is: use related devices for sound collection, AC-DC conversion, power amplification, and then process through single-chip microcomputer and voice chip, and audio amplification to realize the voice prompt function for noise; in addition, the acoustic wave sensor converts the acoustic signal into an electrical signal , and then controlled by a single-chip microcomputer for LED display to achieve the purpose of detecting noise. With the single-chip microcomputer as the processing core, the sound is stored, recorded and played through the voice chip, and then the signal is input into the audio amplifier and speaker, so as to achieve the purpose of alarm.

The effect of the utility model is: it can realize sound collection, noise measurement and LED digital display of the digital tube; when the detected noise exceeds a certain value, an alarm is sent to achieve the function of friendly reminder; it has a built-in hour hand chip and a temperature sensor, and has functions such as clock and temperature.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a circuit board connection principle diagram of the utility model.

In the figure, 1. switch button, 2. circuit board, 3. indicator light, 4. microphone, 5. AC-DC conversion circuit module, 6. V/F conversion circuit module, 7. single-chip microcomputer, 8. clock chip, 9 , LED digital tube, 10, temperature sensor, 11, voice chip, 12, audio power circuit module, 13, loudspeaker, 14, shell.

Detailed ways

As shown in Fig. 1 and Fig. 2, the utility model works and implements like this, and it comprises switch button 1, circuit board 2, indicator lamp 3, LED digital display tube 9, loudspeaker 13 and shell 14, and described circuit board Microphone 4, AC/DC conversion circuit module 5, V/F conversion circuit module 6, single chip microcomputer 7, hour hand chip 8, temperature sensor 10, voice chip 11 and audio power circuit module 12 are installed on 2; , indicator light 3, LED digital display tube 9 and loudspeaker 13 are connected circuit board 2 by wire, and circuit board 2 is installed on shell 14, and switch button 1, indicator light 3, LED digital display tube 9 and loudspeaker 13 are respectively installed on shell 14 . Said on the circuit board 2, the microphone 4 is connected to the AC-DC conversion circuit module 5, the AC-DC conversion circuit module 5 is connected to the V/F conversion circuit module 6, the V/F conversion circuit module 6 is connected to the single-chip microcomputer 7, and the single-chip microcomputer 7 is respectively connected to the clock chip 8. The temperature sensor 10 and the voice chip 11, the voice chip 11 is connected to the audio power circuit module 12, the audio power circuit module 12 is connected to the speaker 13, the speaker 13 is externally placed on the shell 14, and the circuits on the entire circuit board are connected through certain circuit rules And way to connect, so that the device can be used under normal power.

Claims (2)

1. a multi-functional noise monitoring phonetic prompt instrument, it comprises switch key, electric road plate ﹑ pilot lamp, LED digital display tube, loudspeaker and shell, on described circuit board, be provided with biography sound device ﹑ ac-dc converter circuit mould piece ﹑ V/F change-over circuit mould piece ﹑ single-chip microcomputer, time nook closing member sheet ﹑ temperature sensor, speech chip and audio power circuit module; It is characterized in that: switch key, pilot lamp, LED digital display tube and loudspeaker are by wire connecting circuit board, and circuit board is installed shell, is separately installed with switch key, pilot lamp, LED digital display tube and loudspeaker on shell.

2. a kind of multi-functional noise monitoring phonetic prompt instrument according to claim 1, it is characterized in that: described on circuit board, microphone connects ac-dc converter circuit module, ac-dc converter circuit module connects V/F change-over circuit module, V/F change-over circuit module connects single-chip microcomputer, and single-chip microcomputer connects respectively hour hands chip, temperature sensor and speech chip, and speech chip connects audio power circuit module, audio power circuit module connects loudspeaker, and loudspeaker is external on shell.