CN202172515U

CN202172515U - Sound control apparatus

Info

Publication number: CN202172515U
Application number: CN2011202697939U
Authority: CN
Inventors: 刘内生
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-28
Filing date: 2011-07-28
Publication date: 2012-03-21
Anticipated expiration: 2021-07-28

Abstract

The utility model relates to a sound control apparatus, comprising a lightning lamp, a signal amplification unit, a master control unit and a microphone; the lightning lamp is in connection with the master control unit; an output circuit in the master control unit is in connection with a power switch; the power switch is respectively in connection with a filtering and rectification module and a control chip; the control chip is in connection with a light modulation control module through a triode circuit; the signal amplification unit is located between the master control unit and the microphone; the filtering and rectification module in the master control unit is in connection with a voltage stabilization offset module in the signal amplification unit through an auxiliary power source; the voltage stabilization offset module is in connection with a delay output control module through an audio frequency amplifier; the light modulation control module is in connection with the delay output control module in the signal amplification unit. The sound control apparatus has the advantages of sensitive brightness modulation, convenient and flexible use and accurate time-delay control and can be completely suitable for parking lots.

Description

A kind of sound-controlled apparatus

Technical field

The utility model relates to the acoustic control lamp technology, relates in particular to a kind of sound-controlled apparatus.

Background technology

Acoustic control lamp is a kind of acoustic control electronic lighting device, generally is made up of audio frequency amplifier, frequency selection circuit, delayed start-up circuit and ghyristor circuit, and it provides the acoustic control lamp that a kind of easy and simple to handle, flexible, antijamming capability is strong, control is sensitive on the whole.Brightness is greater than to a certain degree the time during daytime, bulb low-light or do not send out, and resistance and voltage stabilizing didoe shield to triode; During night, brightness is less than to a certain degree, and photodiode presents high-impedance state makes the triode forward conduction, makes the controllable silicon triggering and conducting, and bulb is luminous.But, having the acoustic control lamp that is used for the parking lot now, can not make things convenient for according to present set inside to open and close the acoustic control lighting device timely; Can run into induction and delay issue under a lot of situation; Not not anti-false triggering function, it is convenient that it uses underaction, is not suitable for most of parking lots and uses.Therefore, need reasonably improve in conjunction with above aspect.

The utility model content

To above defective, the utility model provides the sound-controlled apparatus that a kind of brightness regulation is sensitive, flexible and convenient to use, time-delay control is accurate, can be applicable to the parking lot fully, to solve many deficiencies of prior art.

For realizing above-mentioned purpose, the utility model adopts following technical scheme:

A kind of sound-controlled apparatus; Comprise lighting, signal amplification unit, main control unit and microphone; Lighting is connected with main control unit; The inner output circuit of said main control unit is connected with mains switch, and said mains switch connects filtering and rectification module, control chip respectively, and this control chip passes through transistor circuit connection dimming controlling module; Inner filtering of signal amplification unit and main control unit and rectification module are installed between main control unit and microphone are connected with the inner voltage stabilizing biasing module of signal amplification unit through accessory power supply, this voltage stabilizing biasing module is passed through audio frequency amplifier and is connected with the delay output control module; Said dimming controlling module is connected with the inner delay output control module of signal amplification unit.

The beneficial effect of the described sound-controlled apparatus of the utility model is:

(1) brightness regulation is sensitive, flexible and convenient to use, time-delay control is accurate, can be applicable to the parking lot fully;

(2) through the signalization amplifying unit, be used to make the size of voice signal can trigger light adjusting controller, and can realize photosensitive time-delay control;

(3) through main control unit is set, when voice signal is smaller, (as＜55dB), circuit control PWM output is at low power consumpting state, and LED is little bright; As when picking up certain sound (as >=55dB), circuit can be controlled PWM light modulation end output and will operate at full capacity; After one period time of delay setting, will get into low loaded work piece state (power can be regulated arbitrarily when hanging down load) between being minimal at full capacity, when voice signal is come in again, more than the repetitive cycling;

(4) the mains switch part can be made up of pulse width modulation (PWM) control IC and MOSFET, constant current output.

Description of drawings

According to accompanying drawing the utility model is done further explain below.

Fig. 1 is the overall structure sketch map of the described sound-controlled apparatus of the utility model embodiment.

Embodiment

As shown in Figure 1; The described sound-controlled apparatus of the utility model embodiment comprises lighting 1, signal amplification unit 2, main control unit 3 and microphone 4, and said lighting 1 is connected with main control unit 3; These main control unit 3 inner output circuits 36 are connected with mains switch 37; Said mains switch 37 connects filtering and rectification module 34 respectively, is used for the control chip 33 of PWM controller and constant current control, and this control chip 33 connects dimming controlling module 35 through transistor circuit, and this dimming controlling module 35 is connected with signal amplification unit 2 inner delay output control modules 24; When 1. the state of transistor circuit wherein comprises voiceless sound; The R2 output low level, triode Q conducting, PWM control IC output low-power (little bright); When 2. sound being arranged, R2 exports high level, and triode Q ends, PWM control IC output high-power (bright entirely).Filtering wherein and rectification module 34 outsides are furnished with power factor processing module 31; Signal amplification unit 2 is installed between main control unit 3 and microphone 4 and main control unit 3 inner filtering and rectification modules 34 are connected through the voltage stabilizing biasing module 21 of accessory power supply 32 with signal amplification unit 2 inside; This voltage stabilizing biasing module 21 is connected said audio frequency amplifier 23 exterior arrangement light-operated circuits 22 through audio frequency amplifier 23 with delay output control module 24.

The described sound-controlled apparatus of above the utility model embodiment, its function mainly comprises following:

Signal amplification unit 2 wherein is used to make the size of voice signal can trigger light adjusting controller, and can realize photosensitive time-delay control;

Main control unit 3 wherein, when voice signal is smaller, (as＜55dB), circuit control PWM output is at low power consumpting state, and LED is little bright; As when picking up certain sound (as >=55dB), circuit can be controlled PWM light modulation end output and will operate at full capacity; After one period time of delay setting, will get into low loaded work piece state (power can be regulated arbitrarily when hanging down load) between being minimal at full capacity, when voice signal is come in again, more than the repetitive cycling;

Mains switch 37 parts wherein can be made up of pulse width modulation (PWM) control IC and MOSFET, constant current output;

Filtering wherein and rectification module 34 are used for electromagnetic interference to be handled, and grid alternating current is transformed to direct current;

Microphone 4 wherein is used to pick up voice signal, and voice signal is converted into the signal of telecommunication.

Above embodiment is more preferably embodiment a kind of of the utility model, and common variation that those skilled in the art carry out in present technique scheme scope and replacement should be included in the protection range of the utility model.

Claims

1. sound-controlled apparatus; Comprise lighting (1), signal amplification unit (2), main control unit (3) and microphone (4); Lighting (1) is connected with main control unit (3); It is characterized in that: the inner output circuit (36) of said main control unit (3) is connected with mains switch (37); Said mains switch (37) connects filtering and rectification module (34), control chip (33) respectively; This control chip (33) connects dimming controlling module (35) through transistor circuit, is positioned between main control unit (3) and the microphone (4) signal amplification unit (2) to be installed and inner filtering and the rectification module (34) of main control unit (3) is connected through the voltage stabilizing biasing module (21) of accessory power supply (32) with signal amplification unit (2) inside, and this voltage stabilizing biasing module (21) is passed through audio frequency amplifier (23) and is connected with delay output control module (24).

2. sound-controlled apparatus according to claim 1 is characterized in that: said dimming controlling module (35) is connected with the inner delay output control module (24) of signal amplification unit (2).