CN206400713U - A kind of human body sensing voice announcer - Google Patents

Abstract

The utility model proposes a kind of human body sensing voice announcer, including control module and power module, it is provided with the control module in control circuit, signal amplification circuit and sensor circuit, control module and is connected with microphone MK, phonographic recorder SP and relay J.This circuit has people just to play voice, driving load；People, which walks, just to stop playing voice, stops the function of load.Suitable for merchant store carry out advertising OR gate bell, can also automatic recording, playback, command range is within 7 meters.Feature is to determine whether that someone passes through by sensor, and whether intelligent decision needs to play voice, it is to avoid causes noise pollution, influences daily life；Simple in construction, cost is relatively low, it is easy to mass produce, and saves the energy.

Description

A kind of human body sensing voice announcer

Technical field

The utility model is related to human body sensing field, and in particular to a kind of human body sensing voice announcer.

Background technology

In daily life, businessman's publicity often uses voice announcer, typically using equipment such as megaphone, sound equipments.This A little equipment typically have a feature：Loop play, continuation be strong, without labor management.This mode can be brought to businessman compared with Good the effect of publicity.But the characteristics of same this publicity mode is due to its loop play and strong continuation, easily to around producing A kind of raw noise pollution, influences surrounding daily life.

The content of the invention

The purpose of this utility model is：The problem of easily there is noise pollution for traditional propagandizing device set forth above, The present invention provides a kind of human body sensing voice announcer.

The technical solution adopted in the utility model is as follows：

A kind of human body sensing voice announcer, including control module and power module, are provided with control in the control module Microphone MK, phonographic recorder SP and relay J are connected with circuit, signal amplification circuit and sensor circuit, control module.

Further, in the control circuit, U5 is the core devices of controller circuitry, U5 "+" interface and luminous two Pole pipe LED positive poles are connected, and U5 "-" interface is connected with LED negative pole, U5 MC+ ports and MC- ports and Mike Wind MK connections, U5 SP+ ports and SP- ports are connected with phonographic recorder MK, U5 VS ports and FT ports ground connection, U5 REC ends Mouthful be connected with switch S3 one end, U5 VC ports and switchs the S3 other ends and be connected with diode D5 negative poles, diode D5 positive poles and Diode D4 negative poles are connected, and diode D4 positive poles are connected with diode D3 negative poles, and diode D3 positive poles are connected with switch S1 one end, U5 PE ports are connected with switch S2 one end, and U5 PL ports and VS ports are connected with relay J.

Further, in the sensor circuit, sensor PIR interface 1 and electric capacity C1 one end, polar capacitor C2 positive poles With the connection of resistance R1 one end, sensor PIR interface 2 and integrated chip U1A interfaces 2, electric capacity C6 one end and resistance R6 one end connect Connect, sensor PIR interfaces 3 are grounded, the electric capacity C6 other ends and resistance R6 other ends ground connection.

Further, in the signal amplification circuit, integrated chip U1A interfaces 2 and resistance R7 one end, resistance R2 one end and Electric capacity C3 one end is connected, and integrated chip U1A interfaces 1 are connected with electric capacity C5 one end, the resistance R2 other ends and the electric capacity C3 other ends, electricity The resistance R7 other ends are connected with electric capacity C7 one end, electric capacity C7 other ends ground connection, the electric capacity C5 other ends and resistance R5 one end, integrated chip U2B interfaces 5, diode D1 negative poles and the connection of diode D2 positive poles, resistance R5 and integrated chip U2B interfaces 6, electric capacity C4 one end and Resistance R4 one end is connected, the electric capacity C4 other ends and the resistance R4 other ends be connected with integrated chip U2B interfaces 7 diode D1 positive poles and Resistance R3 one end and integrated chip U3A interfaces 2 are connected, and the resistance R1 other ends and the resistance R3 other ends are connected with switch S1, two poles Pipe D2 is connected with resistance R8 one end and integrated chip U4B interfaces 5, resistance R8 other ends ground connection, integrated chip U2B interfaces 7 and collection Connected into chip U3A interfaces 3 and integrated chip U4B interfaces 6, integrated chip U3A machines interface 8 is connected with switch S1 one end, integrated Chip U4B interfaces 4 are grounded, and integrated chip U3A interfaces 1 are connected with diode D6 positive poles, integrated chip U4B interfaces 7 and diode D7 positive poles are connected, and diode D6 negative poles are connected with diode D7 negative poles, resistance R9 one end and the switch S2 other ends, and resistance R9 is another End ground connection.

Further, in the power module, transformer T one end is connected with 220V, the other end and U6 interfaces 1 and interface 4 Connection, U6 interface 2 is grounded, and U6 interface 3 and polar capacitor C8 positive poles, triode Q1 colelctor electrodes and triode Q2 emitter stages connect Connect, polar capacitor C8 negative poles ground connection, triode Q1 base stages and emitter stage connect with triode Q3 emitter stages and triode Q5 emitter stages Connect, triode Q2 base stages are connected with electric capacity C9 positive poles, electric capacity C9 negative poles ground connection, triode Q2 colelctor electrodes and diode D8 positive poles and Resistance R11 one end is connected, and the resistance R11 other ends are connected with triode Q3 colelctor electrodes, and triode Q3 emitter stages are born with diode D8 Pole, resistance R10 one end and the connection of polar capacitor C10 positive poles, the resistance R10 other ends and polar capacitor C10 negative poles ground connection, triode Q3 emitter stages are connected with triode Q5 emitter stages, resistance R12 one end and electric capacity C11 one end, triode Q4 base stages and the pole of voltage stabilizing two Pipe D9 negative poles are connected, voltage-regulator diode D9 positive poles and the connection of voltage-regulator diode D10 negative poles, voltage-regulator diode D10 plus earths, electricity Resistance R13 one end is connected with the electric capacity C11 other ends, triode Q5 base stages and triode Q4 colelctor electrodes, triode Q4 emitter stages and three Pole pipe Q6 colelctor electrodes and the connection of resistance R14 one end, resistance R14 other ends ground connection, triode Q5 colelctor electrodes and resistance R15 one end, Electric capacity C12 one end and the connection of triode Q6 emitter stages, the electric capacity C12 other ends and polar capacitor C13 negative poles and triode Q6 base stages Connection, triode Q6 base stages are connected with slide rheostat RP sliding ends, and slide rheostat RP one end is connected with resistance R16 one end, The slide rheostat RP other ends are connected with resistance R17, and resistance R17 other ends ground connection, polar capacitor C14 positive poles connect output, polarity Electric capacity C14 negative poles are grounded.

In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：

1. it can determine whether that someone passes through by sensor, and whether intelligent decision needs to play voice, it is to avoid cause to make an uproar Sound pollutes, and influences daily life.

2. simple in construction, cost is relatively low, it is easy to mass produce, and saves the energy.

Brief description of the drawings

Fig. 1 is control module circuit diagram；

Fig. 2 is power module circuitry figure

Embodiment

All features disclosed in this specification, can be with any in addition to mutually exclusive feature and/or step Mode is combined.

The utility model is elaborated with reference to Fig. 1, Fig. 2.

This circuit has people just to play voice, driving load；People, which walks, just to stop playing voice, stops the function of load. Suitable for merchant store carry out advertising OR gate bell, can also automatic recording, playback, command range is within 7 meters.

This circuit can expand addition load, as shown in figure 1, the equipment for controlling correlation, row such as doorbell, automatically-controlled door Deng.

Fig. 1 is control module circuit diagram, is mainly made up of control circuit, signal amplification circuit and sensor circuit.Its Specific work process is as follows：

1. pair voice content specified is recorded.The master switch S1 of circuit is opened, is switched on power.Pin single-chip microcomputer U5's Record button, that is, switch S3, after LED is bright, is recorded against microphone MK sounding.When the time is more than 12s, hair When light pipe does not work, loose one's grip and End of Tape.It is false modified as needed to during recording substance, repeating last time operation, rewriting is stored in single-chip microcomputer In speech data.

2. when people walks about before PIR lens, the infrared signal of lens sensing human body (only allows wavelength in 7-14Vm Signal pass through, and light, sunshine and other radiation sources are filtered, to suppress interference), specific data are then passed through into 2 pin S End is output to integrated chip U1A 3 pin, and at this moment induced signal voltage is 0.4--1.1V, is amplified by integrated chip U1A, The output voltage of its 1 pin is fluctuated between 0.5-1V, is connected to by resistance R5 after integrated chip U2B 6 pin and is carried out two grades of amplifications. Integrated chip U3A 2 pin voltages are in 0.2V or so, and integrated chip U4B 5 pin voltages are in below 0.2V, the 7 of integrated chip U2B Pin output voltage about 4.6V.Integrated chip U3A and U4B are comparators.The output signal of integrated chip U2B 7 pin is connected to U3A's 6 pin of 3 pin and integrated chip U4B, through being compared with reference voltage, the 7 pin output of integrated chip U3A 1 pin and integrated chip U4B 4.4V or so high level, U5 PE ends are triggered through diode D6 and diode D7, the recorded audio signals of internal reservoir is triggered, passes through Power amplifier output inside SPI+, SPl-, drive the speaker sounding, tone period is 2s, and passes through PL, VS end driving load J.

If 3. there is no human body signal or people not to be moved before lens before PIR lens, integrated chip U1A and integrated Chip U2B output voltage stabilization, it is impossible to trigger integrated chip U3A and integrated chip U4B output low levels, make speech chip not Work.This circuit static electric current 6mA, 20-80mA of dynamic loudspeaker work total current.It is to be noted that human body sensing voice Broadcast device needs preheating, about 1 minute time, so controlled with a switch, wait it is in stable condition after open allow it from starting building again Make.

Claims (5)

1. a kind of human body sensing voice announcer, including control module and power module, it is characterised in that set in the control module It is equipped with control circuit, signal amplification circuit and sensor circuit, control module and is connected with microphone MK, phonographic recorder SP and relay Device J.

2. a kind of human body sensing voice announcer according to claim 1, it is characterised in that in the control circuit, U5 It is the core devices of controller circuitry, U5 "+" interface is connected with LED positive pole, U5 "-" interface and luminous two Pole pipe LED negative poles are connected, and U5 MC+ ports and MC- ports are connected with microphone MK, U5 SP+ ports and SP- ports and recording Device MK connections, U5 VS ports and FT ports ground connection, U5 REC ports are connected with switch S3 one end, U5 VC ports and switch The S3 other ends are connected with diode D5 negative poles, and diode D5 positive poles are connected with diode D4 negative poles, diode D4 positive poles and two poles Pipe D3 negative poles are connected, and diode D3 positive poles are connected with switch S1 one end, and U5 PE ports are connected with switch S2 one end, U5 PL ends Mouth and VS ports are connected with relay J.

3. a kind of human body sensing voice announcer according to claim 1, it is characterised in that in the sensor circuit, Sensor PIR interface 1 is connected with electric capacity C1 one end, polar capacitor C2 positive poles and resistance R1 one end, sensor PIR interface 2 It is connected with integrated chip U1A interfaces 2, electric capacity C6 one end and resistance R6 one end, sensor PIR interfaces 3 are grounded, the electric capacity C6 other ends With resistance R6 other ends ground connection.

4. a kind of human body sensing voice announcer according to claim 1, it is characterised in that the signal amplification circuit In, integrated chip U1A interfaces 2 are connected with resistance R7 one end, resistance R2 one end and electric capacity C3 one end, integrated chip U1A interfaces 1 with Electric capacity C5 one end, the resistance R2 other ends and the connection of the electric capacity C3 other ends, the resistance R7 other ends are connected with electric capacity C7 one end, electric capacity C7 The other end is grounded, and the electric capacity C5 other ends and resistance R5 one end, integrated chip U2B interfaces 5, diode D1 negative poles and diode D2 are just Pole is connected, and resistance R5 is connected with integrated chip U2B interfaces 6, electric capacity C4 one end and resistance R4 one end, the electric capacity C4 other ends and resistance The R4 other ends are connected diode D1 positive poles with integrated chip U2B interfaces 7 and are connected with resistance R3 one end and integrated chip U3A interfaces 2, The resistance R1 other ends and the resistance R3 other ends are connected with switch S1, diode D2 and resistance R8 one end and integrated chip U4B interfaces 5 Connection, resistance R8 other ends ground connection, integrated chip U2B interfaces 7 and integrated chip U3A interfaces 3 and integrated chip U4B interfaces 6 connect Connect, integrated chip U3A machines interface 8 be connected with switch S1 one end, and integrated chip U4B interfaces 4 are grounded, integrated chip U3A interfaces 1 and Diode D6 positive poles are connected, and integrated chip U4B interfaces 7 are connected with diode D7 positive poles, and diode D6 negative poles are born with diode D7 Pole, resistance R9 one end and switch S2 other end connections, resistance R9 other ends ground connection.

5. a kind of human body sensing voice announcer according to claim 1, it is characterised in that in the power module, becomes Depressor T one end is connected with 220V, and the other end is connected with U6 interfaces 1 and interface 4, and U6 interface 2 is grounded, U6 interface 3 and polarity Electric capacity C8 positive poles, triode Q1 colelctor electrodes and the connection of triode Q2 emitter stages, polar capacitor C8 negative poles ground connection, triode Q1 base stages It is connected with emitter stage with triode Q3 emitter stages and triode Q5 emitter stages, triode Q2 base stages are connected with electric capacity C9 positive poles, electricity Hold C9 negative poles ground connection, triode Q2 colelctor electrodes are connected with diode D8 positive poles and resistance R11 one end, the resistance R11 other ends and three Pole pipe Q3 colelctor electrodes are connected, and triode Q3 emitter stages connect with diode D8 negative poles, resistance R10 one end and polar capacitor C10 positive poles Connect, the resistance R10 other ends and polar capacitor C10 negative poles ground connection, triode Q3 emitter stages are connected with triode Q5 emitter stages, resistance R12 one end and electric capacity C11 one end, triode Q4 base stages and the connection of voltage-regulator diode D9 negative poles, voltage-regulator diode D9 positive poles and steady Press the connection of diode D10 negative poles, voltage-regulator diode D10 plus earths, resistance R13 one end and the electric capacity C11 other ends, triode Q5 Base stage and the connection of triode Q4 colelctor electrodes, triode Q4 emitter stages are connected with triode Q6 colelctor electrodes and resistance R14 one end, resistance The R14 other ends are grounded, and triode Q5 colelctor electrodes are connected with resistance R15 one end, electric capacity C12 one end and triode Q6 emitter stages, electricity Hold the C12 other ends to be connected with polar capacitor C13 negative poles and triode Q6 base stages, triode Q6 base stages are slided with slide rheostat RP End connection, slide rheostat RP one end is connected with resistance R16 one end, and the slide rheostat RP other ends are connected with resistance R17, resistance The R17 other ends are grounded, and polar capacitor C14 positive poles connect output, polar capacitor C14 negative poles ground connection.