CN2290262Y

CN2290262Y - Electronic auto cradle sonic control equipment for child

Info

Publication number: CN2290262Y
Application number: CN 96238959
Authority: CN
Inventors: 吴承哲
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-10-30
Filing date: 1996-10-30
Publication date: 1998-09-09
Anticipated expiration: 2006-10-30

Abstract

The utility model relates to electronic auto bassinet sonic control equipment for children, which comprises an amplification circuit for child cry audio signals, a comparison circuit which distinguishes an input signal and a reference voltage, a time control circuit, an electric circuit for driving a motor and an audio generator and a power amplification circuit. The music and the bassinet can be automatically played and rocked respectively along with children's cry when the utility model is assembled on the bassinet. The utility model is convenient for a nursing person and can be easily assembled on the bassinet because of small size.

Description

Child's electronics automatic cradle voice-operated device

The utility model is a kind of sob along with the child in the cradle, can control cradle automatically and shake and the child's electronics automatic cradle voice-operated device that sends music automatically.

Existing cradle all is that child one cried and by the ward cradle shaken after the child was put into cradle, and this makes troubles for the ward of work such as WKG working housework.

The purpose of this utility model is, for avoiding above-mentioned inconvenience, provides a kind of along with the child sends sob, can control cradle automatically and shake and the child's electronics automatic cradle voice-operated device that sends music automatically.

The utility model can be realized as follows:

This equipment comprises the microtelephone of an induction child sob, and to the amplifying circuit of input signal, the output of amplifying circuit is connected with the input of comparison circuit, the output of comparison circuit is connected with time control circuit, motor (M) is connected in the output loop of drive circuit, and the output of time control circuit is respectively through diode D ₆, D ₁₁Be connected with the input of motor-drive circuit and audio generating circuit, the output of audio generating circuit is connected with the input of power amplification circuit.

The utility model induction child's sob is also emitted music automatically and is shaken cradle, and the amplitude of shaking of cradle is adjustable, also can manually shake cradle and bring a lot of convenience to the ward, and this circuitry is stable, and is easy to assembly.

Fig. 1 is a block diagram of the present utility model:

Fig. 2 is an electrical schematic diagram of the present utility model.

Embodiment of the present utility model is described in detail in detail in conjunction with the accompanying drawings:

Fig. 1 illustrates that the utility model is made up of amplifier 1, comparison circuit 2, time control circuit 3, motor-driven and rotating-speed control circuit 4, detecting circuit 5, audio generating circuit 6 and audio power amplifying circuit 7, and the output of time control circuit 4 is respectively through diode D ₆, D ₁₁Be connected with the input of motor-drive circuit with audio generating circuit 6.

In Fig. 2 electrical schematic diagram, by resistance R ₁-R ₉, capacitor C ₁-C ₅, transistor BG ₁, BG ₂, diode D ₁And operational amplifier A ₁Child's sob signal of telecommunication that microphone MIC is received amplifies amplifier A ₁Output is through resistance R ₁₀, capacitor C ₇With comparison amplifier (A ₂) inverting input link to each other, reference voltage is added to A ₂In-phase input end, here amplifying signal and reference signal relatively, A ₂Output with by resistance R ₁₃-R ₂₀, capacitor C ₁₀-C ₁₂, for going out to be transistor BG ₃, for going out to be transistor BG ₄, diode D ₂-D ₅With amplifier A ₃The input of makeup time control circuit links to each other, the time that this part is rotated in order to the control motor M, and regularly stop motor and rotate, motor-driven and speed controllable circuit are by operational amplifier A ₄With transistor BG ₇, BG ₈Form amplifier A ₄The homophase input voltage by supply voltage through resistance R ₂₄, R ₂₅, R ₂₇, R ₂₈, R ₃₀Dividing potential drop is determined, R ₃₀But be power transformation group, A ₄Output is through resistance R ₃₁With NPN transistor BG ₇Base stage be connected BG ₇Colelctor electrode is through resistance R ₃₃With PNP transistor BG ₈Base stage connect, motor (M) is connected in BG ₈Colelctor electrode in the earth-return, music integrated chip IC and resistance R ₃₆-R ₃₉, capacitor C ₁₆-C ₁₈, transistor BG ₉, BG ₁₀, diode D ₉, D ₁₀The external circuit that constitutes has been formed audio generating circuit, amplifier A ₃Output connect diode D ₁, D ₁₁Negative pole, D ₆The anodal amplifier A that connects ₄In-phase input end, D ₁₁The anodal BG that connects ₁₀Base stage, by transistor BG ₁₁BG ₁₂, BG ₁₃, diode D ₁₂, D ₁₃, resistance R ₄₁-R ₄₄, variable resistor R ₄₆, capacitor C ₁₉-C ₂₃The audio power amplifying circuit of forming emitter-base bandgap grading output.The audio signal of integrated output of IC is amplified, and loudspeaker SP is connected in the output circuit of power amplifier level.

Control procedure of the present utility model is as follows: the child is put into after the cradle, and when the child cried, microphone MIC became the signal of telecommunication to sob, by A ₁Amplify back output and enter A ₂Inverting input, with the reference voltage of in-phase input end relatively, A ₂Output signal is by R ₁₈, C ₁₀Differential voltage make BG ₃Starting, then A ₃In-phase input end starting, pass through switch SW this moment ₂Diode D ₆Quit work A ₄Output signal rises, BG ₇, BG ₈Work, the motor M running is along with capacitor C ₁₂Be recharged A ₃The inverting input current potential rises, when the current potential of inverting input is higher than in-phase input end current potential, and A ₃Output signal weaken, pass through switch SW ₂And D ₆Keep amplifier A ₄Output descend BG ₇End BG ₈End, motor M stops operating, and realizes the motor M timing working, and the same with the situation of motor M timing working, audio generating circuit is by D ₁₁By and conducting, realize synchronously emitting the music timing with motor M.R among Fig. 2 ₂₁-R ₂₃, triode BG ₅, BG ₆, capacitor C ₁₃-C ₁₄Prevent that power supply is strayed into setting, SW ₁Be power switch, this equipment can work in (being automatic control) and (i.e. manually control) two states automatically continuously, by SW ₂Adjust.

Claims

1, a kind of child's electronics automatic cradle voice-operated device, the microtelephone (MIC) that comprises an induction child sob, and to the amplifying circuit of input signal, it is characterized in that: the output of amplifying circuit is connected with the input of comparison circuit, the output of comparison circuit is connected with time control circuit, motor (M) is connected in the output loop of drive circuit, and the output of time control circuit is respectively through diode (D ₆, D ₁₁) be connected with the input of motor-drive circuit and audio generating circuit, the output of audio generating circuit is connected with the input of power amplification circuit.

2, voice-operated device according to claim 1 is characterized in that: by resistance R ₁--R ₉, capacitor C ₁--C ₅, transistor BG ₁, BG ₂, diode D ₁And operational amplifier (A ₁) constituting signal amplification circuit, microtelephone (MIC) is connected the input of amplifying circuit, by resistance R ₁₀--R ₁₂, capacitor C ₆--C ₉And comparator (A ₂) form comparison circuit, the output of signal amplification circuit is through resistance R ₁₀, capacitor C ₇With comparator (A ₂) inverting input link to each other, reference voltage is added to comparator (A ₂) in-phase input end, by resistance R ₁₃--R ₂₀Capacitor C ₁₀-C ₁₂, transistor BG ₃, BG ₄, diode D ₂--D ₅And amplifier (A ₃) the makeup time control circuit, comparator (A ₂) the input of output connect hours control circuit, transistor BG ₇, BG ₈And operational amplifier (A ₄) the composition motor-drive circuit, amplifier (A ₄) output be connected NPN transistor BG ₇Input, motor (M) is connected in series in NPN transistor BG ₈Collector loop in, resistance R ₂₄, R ₂₅, R ₂₇, R ₂₈, R ₃₀Dividing potential drop and the diode D that oppositely is connected ₆Determine amplifier A ₄Input voltage, R ₃₀Be power transformation resistance, music integrated chip (IC) and resistance R ₂₄--R ₃₉, capacitor C ₁₆--C ₁₈, transistor BG ₉BG ₁₀With diode D ₉, D ₁₀The external circuit that constitutes is formed audio generating circuit, by transistor BG ₁₁, BG ₁₂, BG ₁₃, diode D ₁₂, D ₁₃, resistance R ₁₄--R ₄₄, variable resistor R ₄₀, capacitor C ₁₉--C ₂₃The audio power amplifying circuit of forming emitter-base bandgap grading output, the amplifier (A of time control circuit ₃) output connect diode D ₆, D ₁₁Negative pole, D ₆Positive pole is connected to amplifier (A ₄) in-phase input end, D ₁₁Positive pole is connected to BG in the audio generating circuit ₁₀Base stage, the time of control motor rotation and music.

3, voice-operated device according to claim 1 is characterized in that: the output BG of motor-drive circuit ₈Colelctor electrode also connect one by resistance B ₃₄, R ₃₅, capacitor C ₁₄, C ₁₅, diode D ₇, D ₆The detecting circuit of forming.