CN102542730A

CN102542730A - Infant sleep condition monitor

Info

Publication number: CN102542730A
Application number: CN2012100290556A
Authority: CN
Inventors: 朱虹
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-09
Filing date: 2012-02-09
Publication date: 2012-07-04

Abstract

The invention relates to an infant sleep condition monitor, which consists of a 6V direct-current power supply, a pyroelectric infrared sensing module IC1, a power control circuit, a musical sound generating circuit IC2 and a frequency modulation wireless transmission circuit, wherein the pyroelectric infrared sensing module IC1 is an RDP-18 pyroelectric infrared sensing module; and the musical sound generating circuit is a KD9300 musical sound generating circuit. In order to inform parents or a guardian of things happened in the sleep period of an infant timely, the infant sleep condition monitor is designed and manufactured according to a characteristic that a pyroelectric infrared sensor can detect the movement of a human body and timely outputs a signal after detection. When the sleep condition of the infant is abnormal, a phenomenon that the body, hands and feet of the infant constantly move occurs, the infrared sensor can detect a human body movement signal, the parents of the infant, who are busy doing housework can monitor the sleep condition of the infant in real time, and particularly when the parents or the guardian of the infant has been rested, the sleep condition of the infant can be monitored at any time.

Description

The infantal sleeping state monitor

Technical field

The invention belongs to electronic technology and infrared control technical field, is about a kind of infantal sleeping state monitor.

Background technology

The most of the time needs sleep in 1～2 year old the infant one day; When the infant in when sleep; Its father and mother or guardian for preventing and observing things such as the infant catches a cold, stool and urine, will note the sound in the infantal sleeping constantly when having a rest or doing work; Whether the infant pedals quilt and so on, has so both influenced its father and mother or tutorial rest or influenced the adult to set one's mind to work.For occurrence during making infantal sleeping is in time informed its father and mother or guardian.The infantal sleeping state monitor is can survey the principle that human body moves according to pyroelectric infrared sensor, surveys the back through sensor and in time exports the characteristics of signal and design and produce.When infantal sleeping just often, baby's health keeps motionless state basically, surveys because of sensor and moves less than human body, so the sensor no signal is exported; When baby sleep is undesired; Phenomenons such as infant's health, trick activity constantly will inevitably appear; At this moment infrared sensor just can be exported and detect the human mobile signal; Make the infant father and mother of the housework of having much to do to keep watch on its sleep state constantly, the convenient baby's sleep quality of looking after at any time on ground away from the baby.Especially night the infant father and mother or guardian have a rest, also can in time listen to the situation of baby sleep.

The present invention is applicable to places uses such as family, kindergarten, hospital.This device is more much lower than the cost of investment of video monitoring, and video monitoring also will be aided with the acoustic control alarm set, otherwise video monitoring performs practically no function.

Below specify infantal sleeping state monitor of the present invention related correlation technique content in implementation process.

Summary of the invention

Goal of the invention and beneficial effect: for occurrence during making infantal sleeping is in time informed its father and mother or guardian.The infantal sleeping state monitor is can survey the principle that human body moves according to pyroelectric infrared sensor, surveys the back through sensor and in time exports the characteristics of signal and design and produce.When infantal sleeping just often, baby's health keeps motionless state basically, surveys because of sensor and moves less than human body, so the sensor no signal is exported; When baby sleep is undesired; Phenomenons such as infant's health, trick activity constantly will inevitably appear; At this moment infrared sensor just can be exported and detect the human mobile signal; Make the infant father and mother of the housework of having much to do to keep watch on its sleep state constantly, the convenient baby's sleep quality of looking after at any time on ground away from the baby.Especially night the infant father and mother or guardian have a rest, also can in time listen to baby's sleep.

The circuit working principle: the infantal sleeping state monitor, form by the living circuit of power circuit, analog music sofar and the frequency modulation radio transmitter of the control of rpyroelectric infrared detecting module.Adopt RDP-18 to make to keep watch on the dormant detecting element of the infrared child of baby; Signal with infrared detector cell output removes to trigger the simulation music sounding circuit; Through the frequency modulation radio transmitter music signal is launched again, can make have much to do in father and mother can keep watch on the infantal sleeping situation on ground away from the infant.Form power switch circuit by rpyroelectric infrared detecting module IC1 and positive-negative-positive triode VT1, controlling the working power that the analog music sofar is given birth to IC circuit 2 and frequency modulation radio transmitter.When infantal sleeping (does not stir) in order, not conducting of power circuit; In the infantal sleeping process; When infant's health or trick were moved, the detectable signal output pin of rpyroelectric infrared detecting module IC1 was a low level, positive-negative-positive triode VT1 conducting; Power circuit is switched on, and music circuit and frequency modulation radio transmitter are started working.The model of musical sound generation IC circuit 2 is KD9300; Its storage inside has a first masterpiece in music; Trigger music acoustical generator and just play once automatically, the music signal that it sends is by the 4 pin output of musical sound generation IC circuit 2, is bonded to the base stage of NPN type triode VT2 in the frequency modulation radio transmitter through capacitor C 1 lotus root; Sound signal is carried out behind the frequency modulation to spatial emission, and receiving end is with a FM receiver.

Technical scheme: the infantal sleeping state monitor, form by 6V direct supply, rpyroelectric infrared sensing module IC1, power control circuit, musical sound generation IC circuit 2 and frequency modulation radio transmitter, it is characterized in that:

The model that rpyroelectric infrared sensing module IC1 adopts is RDP-18; The positive source of rpyroelectric infrared sensing module IC1 meets 6V dc power anode VCC; The end of the level signal output terminal connecting resistance R1 of rpyroelectric infrared sensing module IC1, the power cathode connection circuit ground GND of rpyroelectric infrared sensing module IC1;

Power control circuit: form by resistance R 1, positive-negative-positive triode VT1; The other end of the base stage connecting resistance R1 of positive-negative-positive triode VT1; The emitter of positive-negative-positive triode VT1 meets 6V dc power anode VCC, and the collector of positive-negative-positive triode VT1 connects 1 pin and 2 pin of musical sound generation IC circuit 2;

It is KD9300 that musical sound generation IC circuit 2 adopts model, and 1 pin of musical sound

generation IC circuit

2 and 2 pin connect the collector of positive-negative-positive triode VT1,3 pin connection circuit ground GND of musical sound generation IC circuit 2;

Frequency modulation radio transmitter: form by NPN type triode VT2, resistance R 2, capacitor C 2, higher-order of oscillation coil L, capacitor C 3 and capacitor C 4; 4 pin of musical sound generation IC circuit 2 connect an end of capacitor C 1; The base stage of another termination NPN type triode VT2 of capacitor C 1; The end of the base stage connecting resistance R2 of NPN type triode VT2 and an end of capacitor C 2; The collector of another termination positive-negative-positive triode VT1 of resistance R 2; The other end connection circuit ground GND of capacitor C 2, the collector of NPN type triode VT2 connects the end of an end of capacitor C 3, higher-order of oscillation coil L and an end of capacitor C 4, the collector of another termination positive-negative-positive triode VT1 of capacitor C 3 and the other end of higher-order of oscillation coil L; Antenna TX is penetrated in the other end 1 circle place tap sending and receiving apart from higher-order of oscillation coil L, the emitter of NPN type triode VT2 and the other end connection circuit ground GND of capacitor C 4.

Description of drawings

Accompanying drawing 1 is that the present invention provides an infantal sleeping state monitor embodiment circuit working schematic diagram.

Embodiment

Circuit working schematic diagram and description of drawings according to infantal sleeping state monitor shown in the accompanying drawing 1; And according to the described each several part circuit of foregoing invention content form and circuit in annexation between the components and parts, and the described components and parts technical parameter of embodiment requires to implement to realize the present invention.

The selection of components and parts and technical parameter thereof

IC1 is the rpyroelectric infrared sensing module, model RDP-18, this modular power source voltage range 6～9V; 6 colored lead-in wires are externally arranged, and the function of each lead-in wire is respectively: red line is a positive source, and black line is power cathode (connection circuit ground); Yellow line is external delay capacitance terminal; Green line is external delay resistance terminal, and white wire is an indication output end, and blue line is an output terminal.When the yellow line of module was unsettled, the module output pulse width that is triggered was about 30s of built-in time of circuit, between yellow line and green line and connect electric capacity and can strengthen output pulse width, output delay time was increased; When adjunction postpones electric capacity between Huang, green line; Need adjunction delay resistance between green line and ground; Then output pulse width is determined by external delay electric capacity and deferred telegram resistance jointly, if the Huang of short circuit module, green line, in case then module would be triggered; Output terminal has output always, till cutting off direct supply;

IC2 gives birth to circuit for the analog music sofar, the music generation integrated circuit of its storage inside one first masterpiece in music, and model is selected KD9300 for use, and its WV is 3～5V;

VT1 is the positive-negative-positive triode, selects power P NP type triode among 2SC9012 or the 3CG12 for use, requires currentamplificationfactor＞100; VT2 is a NPN type triode, selects ultrahigh frequency triodes such as 2SC9018 or 3DG142 for use, requires currentamplificationfactor＞80;

Resistance is all selected the 1/4W metalfilmresistor for use, and the resistance of resistance R 1 is 22K Ω; The resistance of resistance R 2 is 51K Ω;

C1, C2 select CRI low frequency Leaded Ceramic Disc Capacitor for use, and its capacity is respectively 0.56 μ F, 0.01 μ F;

C3～C4 selects CTI high frequency Leaded Ceramic Disc Capacitor for use, and its capacity is respectively 15PF, 22PF;

TX is an emitting antenna, can select the telescopic antenna of 50～60cm for use, the flexible cord that also available 80cm is above;

The 6V direct supply can use No. 5 batteries of 4 joints to be composed in series.

Circuit production main points and circuit debugging

Higher-order of oscillation coil L is flat around 4 circles on the plug of ￠ 5mm with the enameled wire of ￠ 0.8mm, and in the upper end 1 circle place tap apart from coil, this tap is used for sending and receiving and penetrates antenna TX;

In the process of making the infantal sleeping state monitor; As long as the components and parts performance of selecting for use is intact; The annexation of components and parts shown in the circuit working schematic diagram is welded in the accompanying drawing 1 to specifications; Behind the components and parts and the confirmation of line process that butt welding connects, the circuit of this infantal sleeping state monitor need not debugged basically, connects with the mains to get final product operate as normal;

Behind engaging means direct supply DC,, this device transmission center frequency values is dropped in the frequency range of FM receiver 88～108MHz through turn-to-turn spacing that changes radio-frequency coil L or the capacity of adjusting capacitor C 3;

Attention: this device transmission frequency should be avoided the centre frequency of local frequency modulation broadcasting as far as possible, disturbs in order to avoid produce each other.Suitably the resistance of adjustment resistance R 2 can change the emissive power of this device, accomplishes when the transmitting range >=10m of device is debugging.Complete machine standby current≤3mA, the electric current≤16mA of complete machine duty.

Claims

1. an infantal sleeping state monitor is made up of 6V direct supply, rpyroelectric infrared sensing module IC1, power control circuit, musical sound generation IC circuit 2 and frequency modulation radio transmitter, it is characterized in that:

Power control circuit is made up of resistance R 1, positive-negative-positive triode VT1; The other end of the base stage connecting resistance R1 of positive-negative-positive triode VT1; The emitter of positive-negative-positive triode VT1 meets 6V dc power anode VCC, and the collector of positive-negative-positive triode VT1 connects 1 pin and 2 pin of musical sound generation IC circuit 2;

The model that musical sound generation IC circuit 2 adopts is KD9300, and 1 pin of musical sound generation IC circuit 2 and 2 pin connect the collector of positive-negative-positive triode VT1,3 pin connection circuit ground GND of musical sound generation IC circuit 2;

The frequency modulation radio transmitter is made up of NPN type triode VT2, resistance R 2, capacitor C 2, higher-order of oscillation coil L, capacitor C 3 and capacitor C 4; 4 pin of musical sound generation IC circuit 2 connect an end of capacitor C 1; The base stage of another termination NPN type triode VT2 of capacitor C 1; The end of the base stage connecting resistance R2 of NPN type triode VT2 and an end of capacitor C 2; The collector of another termination positive-negative-positive triode VT1 of resistance R 2; The other end connection circuit ground GND of capacitor C 2, the collector of NPN type triode VT2 connects the end of an end of capacitor C 3, higher-order of oscillation coil L and an end of capacitor C 4, the collector of another termination positive-negative-positive triode VT1 of capacitor C 3 and the other end of higher-order of oscillation coil L; Antenna TX is penetrated in the other end 1 circle place tap sending and receiving apart from higher-order of oscillation coil L, the emitter of NPN type triode VT2 and the other end connection circuit ground GND of capacitor C 4.