CN109785580A - A kind of preventing child is wandered away device - Google Patents
A kind of preventing child is wandered away device Download PDFInfo
- Publication number
- CN109785580A CN109785580A CN201910188938.3A CN201910188938A CN109785580A CN 109785580 A CN109785580 A CN 109785580A CN 201910188938 A CN201910188938 A CN 201910188938A CN 109785580 A CN109785580 A CN 109785580A
- Authority
- CN
- China
- Prior art keywords
- integrated circuit
- feet
- resistance
- circuit
- connects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Led Devices (AREA)
Abstract
A kind of preventing child is wandered away device, and the encoded output circuit of oscillating circuit connects radio transmitter, and signal is transmitted to stenode circuit through being wirelessly transferred, the decoded circuit of signal is transmitted to warning circuit by stenode circuit by radio transmitter；Handset is generally placed upon with child, and machine tool is then placed on parent, sets certain distance between the two, usually adjustable from 1 meter to more than 20 meters.Parent, which looks after children, to go out to the relatively much more random places of people, when child leaves home long closer, machine tool can receive the signal of handset sending, its warning circuit does not work, once child leaves parent more than set distance, machine tool does not receive the signal of handset sending, and machine tool is alarmed immediately, reminds parent that child is lost no time to give for change at one's side；Furthermore when child feels to cause danger, danger button can be pressed, machine tool can alarm immediately at this time, and parent is reminded to pay attention to；It, being capable of warning reminding parent rapidly the beneficial effects of the invention are as follows when child wanders away or causes danger.
Description
Technical field
The present invention relates to the anti-device of wandering away of one kind, specifically a kind of preventing child is wandered away device, belongs to children's safety protection technique neck
Domain.
Background technique
Present children loss event is more and more, is in order to prevent children loss, and many parents' meetings prepare a little youngsters to child
The anti-product of wandering away of child, product currently on the market have preventing child to wander away band and children's telephone wrist-watch, and preventing child band of wandering away is with one
A wide slightly hard belt connects together child and parent, plays anti-lost effect in this way, and preventing child is wandered away with using letter
It is single, but child simply is tied down with a belt in this way, it feels " walking a dog ", is disrespected to child.Children's telephone
Wrist-watch possesses that child location, remote monitoring, emergency help etc. are multiple to want function, and safety coefficient is high, but children's telephone wrist-watch needs
Phonecard and flow are used, if not having signal or flow use to finish in field, children's telephone wrist-watch does not just have work
With furthermore the price of children's telephone wrist-watch is also somewhat expensive.
Summary of the invention
Wander away device in view of the above existing problems in the prior art, the present invention provides a kind of preventing child, wander away as child or
When causing danger, warning reminding parent can be passed through.
To achieve the goals above, the present invention provides a kind of preventing child and wanders away device, including handset and machine tool, and handset includes compiling
Code output circuit, oscillating circuit and radio transmitter, machine tool include stenode circuit, decoding circuit and warning circuit,
The encoded output circuit of oscillating circuit connects radio transmitter, and signal is transmitted to superhet through being wirelessly transferred by radio transmitter
Circuit is received, the decoded circuit of signal is transmitted to warning circuit by stenode circuit；
Coding circuit includes resistance R1-R10, toggle switch K1-K8, Integrated circuit IC 1, danger button K1；
Oscillating circuit includes resistance R11, potentiometer RP1, capacitor C1, C2, Integrated circuit IC 2, IC3；
Radio transmitter includes resistance R12, R13, capacitor C3, C4, diode D1, Light-emitting diode LED 1, triode
BG1, coil L1, quartz-crystal resonator XT1, antenna ANT1, power supply E1, switch SB1；
Stenode circuit includes resistance R14-R19, potentiometer RP2, RP3, capacitor C5-C10, inductance L2, L3, antenna
ANT2, ceramic resonator XT2, Integrated circuit IC 4, IC5；
Decoding circuit includes resistance R20-R32, toggle switch K9-K16, capacitor C11, diode D2, light emitting diode
LED2, triode BG2, Integrated circuit IC 6；
Warning circuit includes resistance R33-R36, capacitor C12, diode D3, triode BG3-BG5, Integrated circuit IC 7,
IC8 selects switch S1, loudspeaker SW, direct current generator M1, power supply E2, switch SB2；
3 feet of an end Jie Integrated circuit IC 2 of resistance R1-R8, the other end connect " 1 " end of toggle switch K1-K8 respectively,
Ground connection is held in " 2 " of toggle switch K1-K8, and the fixing end of toggle switch K1-K8 connects 1 foot to 8 feet of Integrated circuit IC 1 respectively, collects
It is grounded at 9 feet of IC circuit 1,10 feet and 18 feet of Integrated circuit IC 1 are separately connected 3 feet, the resistance of Integrated circuit IC 3 after being connected
One end of R10, the other end ground connection of resistance R10,15 feet of Integrated circuit IC 1 connect 16 feet through resistance R9, and the 17 of Integrated circuit IC 1
1 foot to 8 feet of a termination Integrated circuit IC 1 of foot connecting resistance R12, danger button K1, other end ground connection；
Resistance R11 connects between 3 feet of Integrated circuit IC 2 and 7 feet of Integrated circuit IC 3；Potentiometer RP1 connects in integrated electricity
Between 2 feet and resistance R11 of road IC3；The anode of capacitor C1 connects 2 feet of Integrated circuit IC 3, cathode ground connection；Capacitor C2, which connects, to be collected
At between 5 feet and ground of IC circuit 3；It is grounded after 1 foot concatenation power supply E1, the switch SB1 of Integrated circuit IC 2, Integrated circuit IC 2
2 feet ground connection, 3 feet of Integrated circuit IC 2 connect 4 feet and 8 feet of Integrated circuit IC 3；1 foot of Integrated circuit IC 3 is grounded, 2 feet and 6 feet
It is connected, 7 foot connecting resistance R11 and potentiometer RP1；
Resistance R12 and diode D1 parallel connection are followed by between 17 feet of Integrated circuit IC 1 and the base stage of triode BG1, and two
The cathode of pole pipe D1 connects 17 feet of Integrated circuit IC 1；Resistance R13 and the series connection of Light-emitting diode LED 1 are followed by Integrated circuit IC 1
17 feet and ground between, the cathode of Light-emitting diode LED 1 is grounded；Capacitor C3 connects between 2 ends of coil L1 and ground；Capacitor C4
It connects between the collector and antenna ANT1 of triode BG1；Quartz-crystal resonator XT1 connects in 2 ends of coil L1 and triode
Between the base stage of BG1, the emitter of triode BG1 is grounded, 3 ends of collector wiring circle L1, the 1 termination power E1's of coil L1
Anode；
Resistance R14 and capacitor C8 series connection is followed by between 10 feet of Integrated circuit IC 4 and 3 feet of Integrated circuit IC 5；Resistance
R15 and capacitor C9 parallel connection are followed by between 3 feet and ground of Integrated circuit IC 5；Resistance R16 connects the 2 foot sum aggregates in Integrated circuit IC 5
At between 1 foot of IC circuit 5；Resistance R17 connects between 5 feet of Integrated circuit IC 5 and 6 feet of Integrated circuit IC 5；Resistance R18
It connects between 6 feet of Integrated circuit IC 5 and 7 feet of Integrated circuit IC 5；Resistance R19 connects 6 feet and ground in Integrated circuit IC 5
Between；Potentiometer RP2 connects between 2 feet and ground of Integrated circuit IC 5；Potentiometer RP3 connects in 6 feet of Integrated circuit IC 5 and integrated
Between 3 feet of IC circuit 7；Capacitor C5 one termination antenna ANT2, the other end be separately connected one end of inductance L3, inductance L2 one
End, 4 feet of another termination Integrated circuit IC 4 of inductance L3, one end ground connection of inductance L2；Capacitor C6 connects the 7 of Integrated circuit IC 4
Between foot and ground；Capacitor C10 connects between 1 foot of Integrated circuit IC 5 and 5 feet of Integrated circuit IC 5；The 1 of Integrated circuit IC 4
Foot, 2 feet, 3 feet, 9 feet, 11 feet, 15 feet, 16 feet ground connection, 5 feet and 6 feet of Integrated circuit IC 4 connect 3 feet of Integrated circuit IC 7, collect
It is grounded at 13 foot meridian capacitor C7 of IC circuit 4,14 feet of Integrated circuit IC 4 are grounded through ceramic resonator XT2；Integrated circuit IC 5
4 feet ground connection, 7 feet connect 14 feet of Integrated circuit IC 6, and 8 feet connect 3 feet of Integrated circuit IC 7；
One end of resistance R20-R27 is connect with 3 feet of Integrated circuit IC 7, and the other end meets toggle switch K9-K16 respectively
" 1 " end, " 2 " of toggle switch K9-K16 hold ground connection, and the fixing end of toggle switch K9-K16 connects the 1 of Integrated circuit IC 6 respectively
Foot is to 8 feet, and 9 feet of Integrated circuit IC 6 are grounded, and 15 feet of Integrated circuit IC 6 connect 16 feet of Integrated circuit IC 6 through resistance R28, collects
The anode of diode D2 is followed by 17 foot series resistance R29 of IC circuit 6, the cathode of diode D2 is separately connected resistance R30's
One end, the anode of capacitor C11, resistance R31 one end, the other end of resistance R31 connect with the base stage of triode BG2, resistance R30
The other end, capacitor C11 cathode connection be followed by between the emitter and ground of triode BG2；18 feet of Integrated circuit IC 6 connect
3 feet of Integrated circuit IC 7, Light-emitting diode LED 2 and resistance R32 series connection are followed by 18 feet and triode in Integrated circuit IC 6
Between the collector of BG2, the anode of Light-emitting diode LED 2 connects 18 feet of Integrated circuit IC 6；
1 foot of Integrated circuit IC 8 connects one end of the anode of diode D3, resistance R33, the cathode selecting of diode D3 respectively
The fixing end of switch S1 is selected, 2 feet of Integrated circuit IC 8, the connection of 3 feet are followed by one end of resistance R34, the other end point of resistance R34
One end of the other end of other connecting resistance R33, capacitor C12, the other end of capacitor C12 connect 4 feet of Integrated circuit IC 8, resistance respectively
One end of R35, the base stage of another termination triode BG5 of resistance R35；Resistance R36 connects the base stage and triode in triode BG3
Between the collector of BG5, the emitter of triode BG5 is grounded；The base stage of triode BG3, BG4 are connected, triode BG3, BG4's
Emitter connects the anode of power supply E2, and the collector of triode BG3 is grounded through loudspeaker SW, and the collector of triode BG4 is through direct current
Motor M1 ground connection；1 foot of Integrated circuit IC 7 connects the anode of power supply E2,2 feet ground connection, and 14 feet of Integrated circuit IC 8 connect integrated circuit
" 1 " end of switch S1, Integrated circuit IC 8 are selected in 3 feet of IC7, the 7 feet ground connection of Integrated circuit IC 8,8 foot selectings of Integrated circuit IC 8
9 feet " 2 " end for connecing the collector of triode BG2 respectively, selecting switch S1, the cathode of power supply E2 is through switch SB2 ground connection.
As a further improvement of the present invention, Integrated circuit IC 1 is coding chip, model PT2262；Integrated circuit IC 2
Model 7805；The model NE555 of Integrated circuit IC 3；The model MICRF002 of Integrated circuit IC 4；Integrated circuit IC 5
Model LM358；Integrated circuit IC 6 is decoding chip, model PT2272；The model 7805 of Integrated circuit IC 7；It is integrated
IC circuit 8 is not circuit, model CD4069.
As a further improvement of the present invention, triode BG1 is PNP pipe type, model 2SC3357；Triode BG2, BG5
For NPN cast, model 9013；Triode BG3, BG4 are PNP pipe type, model 9012.
As a further improvement of the present invention, the model IN4148 of diode D1, D2, D3, D4.
As a further improvement of the present invention, the frequency of oscillation of quartz-crystal resonator XT1 is 315MHz, ceramic resonator
The frequency of oscillation of XT2 is 4.89MHz.
As a further improvement of the present invention, Light-emitting diode LED 1, LED2 are red light emitting diodes.
As a further improvement of the present invention, the voltage of power supply E1, E2 is 12V, model 27A；Direct current generator M1 model
MVE-DC, rated power 0.1KW.
Compared with prior art, the present invention is made of handset and machine tool two parts, and handset is generally placed upon with child, machine tool
It is then placed on parent, sets certain distance between the two, it is usually adjustable from 1 meter to more than 20 meters.Parent, which looks after children, to go out to people's ratio
More comparison random place, such as airport, market, recreation ground etc., when child leaves home long closer, machine tool can receive handset
The signal of sending, warning circuit do not work, once child leaves parent more than set distance, machine tool does not receive handset sending
Signal, machine tool alarms immediately, reminds parent that child is lost no time to give for change at one's side；Furthermore it when child feels to cause danger, can press
Lower danger button, machine tool can alarm immediately at this time, and parent is reminded to pay attention to；The beneficial effects of the invention are as follows wander away or send out as child
When raw dangerous, can warning reminding parent rapidly, furthermore the present invention be also applied to bag it is antitheft in.
Detailed description of the invention
Fig. 1 is structure diagram of the invention；
Fig. 2 is the circuit diagram of handset of the present invention；
Fig. 3 is the circuit diagram of machine tool of the present invention.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
The device as shown in Figure 1, a kind of preventing child is wandered away, including handset and machine tool, handset include coding output circuit, oscillation electricity
Road and radio transmitter, machine tool include stenode circuit, decoding circuit and warning circuit, the encoded output of oscillating circuit
Signal is transmitted to stenode circuit through being wirelessly transferred by circuit connection radio transmitter, radio transmitter, by superhet
It receives circuit and the decoded circuit of signal is transmitted to warning circuit；
As shown in Figures 2 and 3, coding circuit includes resistance R1-R10, toggle switch K1-K8, Integrated circuit IC 1, promptly
Button K1；
Oscillating circuit includes resistance R11, potentiometer RP1, capacitor C1, C2, Integrated circuit IC 2, IC3；
Radio transmitter includes resistance R12, R13, capacitor C3, C4, diode D1, Light-emitting diode LED 1, triode
BG1, coil L1, quartz-crystal resonator XT1, antenna ANT1, power supply E1, switch SB1；
Stenode circuit includes resistance R14-R19, potentiometer RP2, RP3, capacitor C5-C10, inductance L2, L3, antenna
ANT2, ceramic resonator XT2, Integrated circuit IC 4, IC5；
Decoding circuit includes resistance R20-R32, toggle switch K9-K16, capacitor C11, diode D2, light emitting diode
LED2, triode BG2, Integrated circuit IC 6；
Warning circuit includes resistance R33-R36, capacitor C12, diode D3, triode BG3-BG5, Integrated circuit IC 7,
IC8 selects switch S1, loudspeaker SW, direct current generator M1, power supply E2, switch SB2；
Integrated circuit IC 1 is coding chip, model PT2262；The model 7805 of Integrated circuit IC 2；Integrated circuit
The model NE555 of IC3；The model MICRF002 of Integrated circuit IC 4；The model LM358 of Integrated circuit IC 5；Integrated electricity
Road IC6 is decoding chip, model PT2272；The model 7805 of Integrated circuit IC 7；Integrated circuit IC 8 is not circuit, type
Number be CD4069；Triode BG1 is PNP pipe type, model 2SC3357；Triode BG2, BG5 are NPN cast, model
9013；Triode BG3, BG4 are PNP pipe type, model 9012；The model IN4148 of diode D1, D2, D3, D4；Quartz-crystal
The frequency of oscillation of body resonator XT1 is 315MHz, and the frequency of oscillation of ceramic resonator XT2 is 4.89MHz；Light emitting diode
LED1, LED2 are red light emitting diodes；The voltage of power supply E1, E2 are 12V, model 27A；Direct current generator M1 model MVE-
DC, rated power 0.1KW.
3 feet of an end Jie Integrated circuit IC 2 of resistance R1-R8, the other end connect " 1 " end of toggle switch K1-K8 respectively,
Ground connection is held in " 2 " of toggle switch K1-K8, and the fixing end of toggle switch K1-K8 connects 1 foot to 8 feet of Integrated circuit IC 1 respectively, collects
It is grounded at 9 feet of IC circuit 1,10 feet and 18 feet of Integrated circuit IC 1 are separately connected 3 feet, the resistance of Integrated circuit IC 3 after being connected
One end of R10, the other end ground connection of resistance R10,15 feet of Integrated circuit IC 1 connect 16 feet through resistance R9, and the 17 of Integrated circuit IC 1
1 foot to 8 feet of a termination Integrated circuit IC 1 of foot connecting resistance R12, danger button K1, other end ground connection；
Resistance R11 connects between 3 feet of Integrated circuit IC 2 and 7 feet of Integrated circuit IC 3；Potentiometer RP1 connects in integrated electricity
Between 2 feet and resistance R11 of road IC3；The anode of capacitor C1 connects 2 feet of Integrated circuit IC 3, cathode ground connection；Capacitor C2, which connects, to be collected
At between 5 feet and ground of IC circuit 3；It is grounded after 1 foot concatenation power supply E1, the switch SB1 of Integrated circuit IC 2, Integrated circuit IC 2
2 feet ground connection, 3 feet of Integrated circuit IC 2 connect 4 feet and 8 feet of Integrated circuit IC 3；1 foot of Integrated circuit IC 3 is grounded, 2 feet and 6 feet
It is connected, 7 foot connecting resistance R11 and potentiometer RP1；
Resistance R12 and diode D1 parallel connection are followed by between 17 feet of Integrated circuit IC 1 and the base stage of triode BG1, and two
The cathode of pole pipe D1 connects 17 feet of Integrated circuit IC 1；Resistance R13 and the series connection of Light-emitting diode LED 1 are followed by Integrated circuit IC 1
17 feet and ground between, the cathode of Light-emitting diode LED 1 is grounded；Capacitor C3 connects between 2 ends of coil L1 and ground；Capacitor C4
It connects between the collector and antenna ANT1 of triode BG1；Quartz-crystal resonator XT1 connects in 2 ends of coil L1 and triode
Between the base stage of BG1, the emitter of triode BG1 is grounded, 3 ends of collector wiring circle L1, the 1 termination power E1's of coil L1
Anode；
Resistance R14 and capacitor C8 series connection is followed by between 10 feet of Integrated circuit IC 4 and 3 feet of Integrated circuit IC 5；Resistance
R15 and capacitor C9 parallel connection are followed by between 3 feet and ground of Integrated circuit IC 5；Resistance R16 connects the 2 foot sum aggregates in Integrated circuit IC 5
At between 1 foot of IC circuit 5；Resistance R17 connects between 5 feet of Integrated circuit IC 5 and 6 feet of Integrated circuit IC 5；Resistance R18
It connects between 6 feet of Integrated circuit IC 5 and 7 feet of Integrated circuit IC 5；Resistance R19 connects 6 feet and ground in Integrated circuit IC 5
Between；Potentiometer RP2 connects between 2 feet and ground of Integrated circuit IC 5；Potentiometer RP3 connects in 6 feet of Integrated circuit IC 5 and integrated
Between 3 feet of IC circuit 7；Capacitor C5 one termination antenna ANT2, the other end be separately connected one end of inductance L3, inductance L2 one
End, 4 feet of another termination Integrated circuit IC 4 of inductance L3, one end ground connection of inductance L2；Capacitor C6 connects the 7 of Integrated circuit IC 4
Between foot and ground；Capacitor C10 connects between 1 foot of Integrated circuit IC 5 and 5 feet of Integrated circuit IC 5；The 1 of Integrated circuit IC 4
Foot, 2 feet, 3 feet, 9 feet, 11 feet, 15 feet, 16 feet ground connection, 5 feet and 6 feet of Integrated circuit IC 4 connect 3 feet of Integrated circuit IC 7, collect
It is grounded at 13 foot meridian capacitor C7 of IC circuit 4,14 feet of Integrated circuit IC 4 are grounded through ceramic resonator XT2；Integrated circuit IC 5
4 feet ground connection, 7 feet connect 14 feet of Integrated circuit IC 6, and 8 feet connect 3 feet of Integrated circuit IC 7；
One end of resistance R20-R27 is connect with 3 feet of Integrated circuit IC 7, and the other end meets toggle switch K9-K16 respectively
" 1 " end, " 2 " of toggle switch K9-K16 hold ground connection, and the fixing end of toggle switch K9-K16 connects the 1 of Integrated circuit IC 6 respectively
Foot is to 8 feet, and 9 feet of Integrated circuit IC 6 are grounded, and 15 feet of Integrated circuit IC 6 connect 16 feet of Integrated circuit IC 6 through resistance R28, collects
The anode of diode D2 is followed by 17 foot series resistance R29 of IC circuit 6, the cathode of diode D2 is separately connected resistance R30's
One end, the anode of capacitor C11, resistance R31 one end, the other end of resistance R31 connect with the base stage of triode BG2, resistance R30
The other end, capacitor C11 cathode connection be followed by between the emitter and ground of triode BG2；18 feet of Integrated circuit IC 6 connect
3 feet of Integrated circuit IC 7, Light-emitting diode LED 2 and resistance R32 series connection are followed by 18 feet and triode in Integrated circuit IC 6
Between the collector of BG2, the anode of Light-emitting diode LED 2 connects 18 feet of Integrated circuit IC 6；
1 foot of Integrated circuit IC 8 connects one end of the anode of diode D3, resistance R33, the cathode selecting of diode D3 respectively
The fixing end of switch S1 is selected, 2 feet of Integrated circuit IC 8, the connection of 3 feet are followed by one end of resistance R34, the other end point of resistance R34
One end of the other end of other connecting resistance R33, capacitor C12, the other end of capacitor C12 connect 4 feet of Integrated circuit IC 8, resistance respectively
One end of R35, the base stage of another termination triode BG5 of resistance R35；Resistance R36 connects the base stage and triode in triode BG3
Between the collector of BG5, the emitter of triode BG5 is grounded；The base stage of triode BG3, BG4 are connected, triode BG3, BG4's
Emitter connects the anode of power supply E2, and the collector of triode BG3 is grounded through loudspeaker SW, and the collector of triode BG4 is through direct current
Motor M1 ground connection；1 foot of Integrated circuit IC 7 connects the anode of power supply E2,2 feet ground connection, and 14 feet of Integrated circuit IC 8 connect integrated circuit
" 1 " end of switch S1, Integrated circuit IC 8 are selected in 3 feet of IC7, the 7 feet ground connection of Integrated circuit IC 8,8 foot selectings of Integrated circuit IC 8
9 feet " 2 " end for connecing the collector of triode BG2 respectively, selecting switch S1, the cathode of power supply E2 is through switch SB2 ground connection.
The resistance value of these elements is common knowledge in Fig. 2, Fig. 3, and those skilled in the art can according to need to each
The parameter of element is adjusted.
Working principle of the present invention is as follows:
The handset course of work
Integrated circuit IC 3, resistance R11, potentiometer RP1 and capacitor C1, C2 form multivibrator, cycle of oscillation 0.7
× (R11+2RP2) × C1 is using electricity wisely, and handset uses intermittent duty, gives coding to export by multivibrator interval
The Integrated circuit IC 1 of circuit is powered, and when multivibrator exports high level, 1 work once electrified of Integrated circuit IC, 17 feet are height
Level, Light-emitting diode LED 1 are lighted, and the serial data signal through ovennodulation, the Quartz crystal resonant of radio transmitter are exported
Device XT1 starting of oscillation externally emits constant amplitude high-frequency signal；And when multivibrator exports low level, Integrated circuit IC 1 does not work,
Its 17 foot is low level, and Light-emitting diode LED 1 is extinguished, and the quartz-crystal resonator XT1 of transmit circuit stops oscillation, not externally
Emit high-frequency signal.
The machine tool course of work
Preferably to receive the signal from handset, the present invention uses stenode circuit, sensitivity and anti-interference
Property to be substantially better than traditional Armstrong circuit, there are two types of operating modes for the tool of Integrated circuit IC 4: scan pattern and stent
Formula.The present invention uses fixed mode, and only tens KHz, this fixed mode are used for and using crystal oscillator frequency stabilizations fixed mode bandwidth
Transmitter is mating, and data rate passes through 16 feet (SWEN) of Integrated circuit IC 4 up to 10Kbytes each second, operating mode selection
It realizes.Integrated circuit IC 5 is integrated transporting discharging, and adjusting potentiometer RP2 (coarse adjustment) can be changed the amplification factor of first order amplifier, is adjusted
Potentiometer RP3 (fine tuning) can be changed second level amplifier amplification factor, be equivalent to adjust machine tool receive handset signal reception away from
From.
In decoding circuit, after 14 feet of Integrated circuit IC 6 receive signal, the integrated circuit of output circuit is only encoded
IC1 (coding chip PT2262) is identical with the address code of Integrated circuit IC 6 (decoding chip PT2272), and could match makes
With.The coded address of handset and machine tool is set using preceding parent, such as by Integrated circuit IC 1 (coding chip PT2262)
2 feet ground connection, 3 feet connect positive supply, other pin floating, then Integrated circuit IC 6 (decoding chip PT2272) is as long as also connect 2 feet
Ground, 3 feet connect positive supply, and other pin floating can be achieved with pairing and receive.After more errorless, 17 feet of Integrated circuit IC 6 are defeated
High level out, triode BG2 conducting, Light-emitting diode LED 2 are lighted, and expression receives the signal from handset, triode BG2
Collector export low level, if the signal for not receiving handset signal or receiving is wrong, Integrated circuit IC 6 (solution
Code chip PT2272) 17 feet export low level, triode BG2 cut-off, Light-emitting diode LED 2 extinguish, the collection of triode BG2
Electrode exports high level.
Switch S1 is selected, pushing " 2 " end indicates anti-lost mode, and children do not wander away at this time, and machine tool can receive handset letter
Number, the collector of triode BG2 exports low level, and ground connection, resistance R33, R34, capacitor C12 is connected in coupled diode D3
The multivibrator formed with Integrated circuit IC 8 is unable to oscillatory work, and warning circuit does not work, if child is because of various originals at this time
Because wandering away, machine tool does not receive handset signal, and the collector of triode BG2 exports high level, and coupled diode D3 is cut
Only, multivibrator starts oscillatory work, and interrupted output high level, when exporting high level, triode BG5 conducting is alarmed electric
Triode BG3, BG4 ON operation on road, loudspeaker SW sounding, vibrating motor M1 vibration, to remind parent.
It indicates to look for mode when selection switch S1 pushes " 1 " end, when looking for less than missing children, machine tool does not receive son
Machine signal, the collector of triode BG2 export high level, and 8 feet of Integrated circuit IC 8 are low level, coupled diode
D3 conducting ground connection, multivibrator are unable to oscillatory work, and loudspeaker SW not sounding, vibrating motor M1 does not vibrate, if machine tool connects
Nearly handset, and handset signal can be received, the collector of triode BG2 exports low level, and 8 feet of Integrated circuit IC 8 are high electricity
Flat, coupled diode D3 cut-off, multivibrator oscillatory work, loudspeaker SW sounding, vibrating motor M1 vibration are guided
Parent is eventually found handset.
When child meets with danger, danger button K1 can be pressed, at this time the 1 of Integrated circuit IC 1 (coding chip PT2262)
Foot is all grounded to 8 feet, this is inconsistent with the coded address of Integrated circuit IC 6 (decoding chip PT2272).Machine tool in this way is by nothing
Method receives handset signal, warning circuit work, to remind parent.
Furthermore the present invention be also applied to bag it is antitheft in, handset is placed in bag, main if bag is with owner
Machine tool on the person can receive the signal of handset, and warning circuit does not work, and after bag is stolen by burglar, machine tool receives
Less than handset signal, warning circuit works, loudspeaker SW sounding, and vibrating motor M1 vibration can remind owner's bag to lose.
Claims (7)
- The device 1. a kind of preventing child is wandered away, including handset and machine tool, which is characterized in that handset includes coding output circuit, oscillation electricity Road and radio transmitter, machine tool include stenode circuit, decoding circuit and warning circuit, the encoded output of oscillating circuit Signal is transmitted to stenode circuit through being wirelessly transferred by circuit connection radio transmitter, radio transmitter, by superhet It receives circuit and the decoded circuit of signal is transmitted to warning circuit；Coding circuit includes resistance R1-R10, toggle switch K1-K8, Integrated circuit IC 1, danger button K1；Oscillating circuit includes resistance R11, potentiometer RP1, capacitor C1, C2, Integrated circuit IC 2, IC3；Radio transmitter includes resistance R12, R13, capacitor C3, C4, diode D1, Light-emitting diode LED 1, triode BG1, Coil L1, quartz-crystal resonator XT1, antenna ANT1, power supply E1, switch SB1；Stenode circuit includes resistance R14-R19, potentiometer RP2, RP3, capacitor C5-C10, inductance L2, L3, antenna ANT2, ceramic resonator XT2, Integrated circuit IC 4, IC5；Decoding circuit includes resistance R20-R32, toggle switch K9-K16, capacitor C11, diode D2, Light-emitting diode LED 2, and three Pole pipe BG2, Integrated circuit IC 6；Warning circuit includes resistance R33-R36, capacitor C12, diode D3, triode BG3-BG5, Integrated circuit IC 7, IC8, choosing Select switch S1, loudspeaker SW, direct current generator M1, power supply E2, switch SB2；3 feet of an end Jie Integrated circuit IC 2 of resistance R1-R8, the other end connect " 1 " end of toggle switch K1-K8, dial-up respectively Ground connection is held in " 2 " of switch K1-K8, and the fixing end of toggle switch K1-K8 connects 1 foot to 8 feet of Integrated circuit IC 1 respectively, integrates electricity 9 feet of road IC1 are grounded, and 10 feet and 18 feet of Integrated circuit IC 1 are separately connected 3 feet, the resistance R10 of Integrated circuit IC 3 after being connected One end, the other end ground connection of resistance R10,15 feet of Integrated circuit IC 1 connect 16 feet, 17 feet of Integrated circuit IC 1 through resistance R9 1 foot to 8 feet of a termination Integrated circuit IC 1 of connecting resistance R12, danger button K1, other end ground connection；Resistance R11 connects between 3 feet of Integrated circuit IC 2 and 7 feet of Integrated circuit IC 3；Potentiometer RP1 connects in integrated circuit Between 2 feet and resistance R11 of IC3；The anode of capacitor C1 connects 2 feet of Integrated circuit IC 3, cathode ground connection；Capacitor C2 connects integrated Between 5 feet and ground of IC circuit 3；It is grounded after 1 foot concatenation power supply E1, the switch SB1 of Integrated circuit IC 2, the 2 of Integrated circuit IC 2 Foot ground connection, 3 feet of Integrated circuit IC 2 connect 4 feet and 8 feet of Integrated circuit IC 3；1 foot of Integrated circuit IC 3 is grounded, 2 feet and 6 feet It is connected, 7 foot connecting resistance R11 and potentiometer RP1；Resistance R12 and diode D1 parallel connection are followed by between 17 feet of Integrated circuit IC 1 and the base stage of triode BG1, diode The cathode of D1 connects 17 feet of Integrated circuit IC 1；Resistance R13 and the series connection of Light-emitting diode LED 1 are followed by the 17 of Integrated circuit IC 1 Between foot and ground, the cathode of Light-emitting diode LED 1 is grounded；Capacitor C3 connects between 2 ends of coil L1 and ground；Capacitor C4 connects Between the collector and antenna ANT1 of triode BG1；Quartz-crystal resonator XT1 connects 2 ends and triode BG1 in coil L1 Between base stage, the emitter of triode BG1 is grounded, 3 ends of collector wiring circle L1, the anode of the 1 termination power E1 of coil L1；Resistance R14 and capacitor C8 series connection is followed by between 10 feet of Integrated circuit IC 4 and 3 feet of Integrated circuit IC 5；Resistance R15 And capacitor C9 parallel connection is followed by between 3 feet and ground of Integrated circuit IC 5；Resistance R16 connects in 2 feet of Integrated circuit IC 5 and integrated Between 1 foot of IC circuit 5；Resistance R17 connects between 5 feet of Integrated circuit IC 5 and 6 feet of Integrated circuit IC 5；Resistance R18 connects Between 6 feet of Integrated circuit IC 5 and 7 feet of Integrated circuit IC 5；Resistance R19 connects between 6 feet and ground of Integrated circuit IC 5； Potentiometer RP2 connects between 2 feet and ground of Integrated circuit IC 5；Potentiometer RP3 connects 6 feet and integrated circuit in Integrated circuit IC 5 Between 3 feet of IC7；A termination antenna ANT2 of capacitor C5, the other end are separately connected one end of one end of inductance L3, inductance L2, 4 feet of another termination Integrated circuit IC 4 of inductance L3, one end ground connection of inductance L2；Capacitor C6 connects 7 feet in Integrated circuit IC 4 Between ground；Capacitor C10 connects between 1 foot of Integrated circuit IC 5 and 5 feet of Integrated circuit IC 5；1 foot of Integrated circuit IC 4,2 Foot, 3 feet, 9 feet, 11 feet, 15 feet, 16 feet ground connection, 5 feet and 6 feet of Integrated circuit IC 4 connect 3 feet of Integrated circuit IC 7, integrate electricity The 13 foot meridian capacitor C7 of road IC4 are grounded, and 14 feet of Integrated circuit IC 4 are grounded through ceramic resonator XT2；4 feet of Integrated circuit IC 5 Ground connection, 7 feet connect 14 feet of Integrated circuit IC 6, and 8 feet connect 3 feet of Integrated circuit IC 7；One end of resistance R20-R27 is connect with 3 feet of Integrated circuit IC 7, and the other end connects " 1 " of toggle switch K9-K16 respectively Ground connection is held in end, " 2 " of toggle switch K9-K16, and the fixing end of toggle switch K9-K16 connects 1 foot of Integrated circuit IC 6 to 8 respectively Foot, the 9 feet ground connection of Integrated circuit IC 6,15 feet of Integrated circuit IC 6 connect 16 feet of Integrated circuit IC 6 through resistance R28, integrate electricity The 17 foot series resistance R29 of road IC6 are followed by the anode of diode D2, the cathode of diode D2 be separately connected resistance R30 one end, One end of the anode of capacitor C11, resistance R31, the other end of resistance R31 are connect with the base stage of triode BG2, and resistance R30's is another The cathode connection of one end, capacitor C11 is followed by between the emitter and ground of triode BG2；18 feet of Integrated circuit IC 6 connect integrated 3 feet of IC circuit 7, Light-emitting diode LED 2 and resistance R32 series connection are followed by 18 feet and triode BG2 in Integrated circuit IC 6 Between collector, the anode of Light-emitting diode LED 2 connects 18 feet of Integrated circuit IC 6；1 foot of Integrated circuit IC 8 connects one end of the anode of diode D3, resistance R33 respectively, and the cathode selecting of diode D3 is selected out The fixing end of S1 is closed, 2 feet of Integrated circuit IC 8, the connection of 3 feet are followed by one end of resistance R34, and the other end of resistance R34 connects respectively One end of the other end of resistance R33, capacitor C12, the other end of capacitor C12 connect 4 feet of Integrated circuit IC 8 respectively, resistance R35's One end, the base stage of another termination triode BG5 of resistance R35；Resistance R36 connects the base stage and triode BG5 in triode BG3 Between collector, the emitter of triode BG5 is grounded；The base stage of triode BG3, BG4 are connected, the transmitting of triode BG3, BG4 Pole connects the anode of power supply E2, and the collector of triode BG3 is grounded through loudspeaker SW, and the collector of triode BG4 is through direct current generator M1 ground connection；1 foot of Integrated circuit IC 7 connects the anode of power supply E2,2 feet ground connection, and 14 feet of Integrated circuit IC 8 connect Integrated circuit IC 7 3 feet, Integrated circuit IC 87 feet ground connection, 8 foot selectings of Integrated circuit IC 8 select switch S1 " 1 " hold, the 9 of Integrated circuit IC 8 " 2 " end that foot connects the collector of triode BG2 respectively, selects switch S1, the cathode of power supply E2 are grounded through switch SB2.
- The device 2. a kind of preventing child according to claim 1 is wandered away, which is characterized in that Integrated circuit IC 1 is coding chip, type Number be PT2262；The model 7805 of Integrated circuit IC 2；The model NE555 of Integrated circuit IC 3；The model of Integrated circuit IC 4 For MICRF002；The model LM358 of Integrated circuit IC 5；Integrated circuit IC 6 is decoding chip, model PT2272；Integrated electricity The model 7805 of road IC7；Integrated circuit IC 8 is not circuit, model CD4069.
- The device 3. a kind of preventing child according to claim 1 is wandered away, which is characterized in that triode BG1 is PNP pipe type, model For 2SC3357；Triode BG2, BG5 are NPN cast, model 9013；Triode BG3, BG4 are PNP pipe type, model 9012。
- The device 4. a kind of preventing child according to claim 1 is wandered away, which is characterized in that the model of diode D1, D2, D3, D4 For IN4148.
- The device 5. a kind of preventing child according to claim 1 is wandered away, which is characterized in that the oscillation of quartz-crystal resonator XT1 Frequency is 315MHz, and the frequency of oscillation of ceramic resonator XT2 is 4.89MHz.
- The device 6. a kind of preventing child according to claim 1 is wandered away, which is characterized in that Light-emitting diode LED 1, LED2 are red Color light emitting diode.
- The device 7. a kind of preventing child according to claim 1 is wandered away, which is characterized in that the voltage of power supply E1, E2 are 12V, type Number be 27A；Direct current generator M1 model MVE-DC, rated power 0.1KW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910188938.3A CN109785580A (en) | 2019-03-13 | 2019-03-13 | A kind of preventing child is wandered away device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910188938.3A CN109785580A (en) | 2019-03-13 | 2019-03-13 | A kind of preventing child is wandered away device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109785580A true CN109785580A (en) | 2019-05-21 |
Family
ID=66489145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910188938.3A Pending CN109785580A (en) | 2019-03-13 | 2019-03-13 | A kind of preventing child is wandered away device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109785580A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111311875A (en) * | 2020-02-21 | 2020-06-19 | 南宁学院 | Alarm system for preventing children from getting lost |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204229586U (en) * | 2014-06-24 | 2015-03-25 | 衢州顶点电子科技有限公司 | A kind of preventing child losing device of multi-operation mode |
| CN104616430A (en) * | 2015-01-20 | 2015-05-13 | 深圳市元征科技股份有限公司 | Alarming method and system |
| CN207938158U (en) * | 2018-03-13 | 2018-10-02 | 中国水利水电第五工程局有限公司 | A kind of flood and mud-rock flow real-time detection alarming device |
| CN109031351A (en) * | 2018-05-03 | 2018-12-18 | 成都宽和科技有限责任公司 | A kind of old people's air defense based on AT89S52 single-chip microcontroller is wandered away system |
-
2019
- 2019-03-13 CN CN201910188938.3A patent/CN109785580A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204229586U (en) * | 2014-06-24 | 2015-03-25 | 衢州顶点电子科技有限公司 | A kind of preventing child losing device of multi-operation mode |
| CN104616430A (en) * | 2015-01-20 | 2015-05-13 | 深圳市元征科技股份有限公司 | Alarming method and system |
| CN207938158U (en) * | 2018-03-13 | 2018-10-02 | 中国水利水电第五工程局有限公司 | A kind of flood and mud-rock flow real-time detection alarming device |
| CN109031351A (en) * | 2018-05-03 | 2018-12-18 | 成都宽和科技有限责任公司 | A kind of old people's air defense based on AT89S52 single-chip microcontroller is wandered away system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111311875A (en) * | 2020-02-21 | 2020-06-19 | 南宁学院 | Alarm system for preventing children from getting lost |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109785580A (en) | A kind of preventing child is wandered away device | |
| CN201965736U (en) | Anti-getting lost safety garment | |
| CN210072875U (en) | Children prevent going astray from group and mosquito repellent system and use traveling bag of this system | |
| CN205302583U (en) | Plain type anti -lost device | |
| CN201079285Y (en) | Safety prompting device for kettle | |
| CN203788944U (en) | Multi-channel wireless fishing alarm | |
| CN2223714Y (en) | Multi-function theft-proof and alarming device for motor cycle | |
| CN1048274A (en) | Power line carrier joint defense warning device | |
| CN2219514Y (en) | Composite alarm | |
| CN2378786Y (en) | Ciphering and deciphering radio transreceiving alarmer | |
| CN2308123Y (en) | Anti-lost and anti-theft alarm | |
| CN2350815Y (en) | Sleeping care device | |
| CN109031351A (en) | A kind of old people's air defense based on AT89S52 single-chip microcontroller is wandered away system | |
| CN206946664U (en) | A kind of bluetooth anti-lose system | |
| CN2144837Y (en) | Multichannel code wireless alarm device | |
| CN2843158Y (en) | Multifunctional intelligent safety alarming bag | |
| CN2097890U (en) | Anti-stealing hand remote leather safe with high-voltage | |
| CN203870740U (en) | Antitheft alarm system based on radio-frequency relay communication | |
| CN2461094Y (en) | Multifunction remote-control alarm device | |
| CN2458680Y (en) | Remote-controlled infusion alarm | |
| CN2223411Y (en) | Acoustooptic alarming electric torch | |
| CN2284981Y (en) | Theft-proof alarm for carried articles | |
| CN208298373U (en) | Emergency alarm electric pole | |
| CN2473978Y (en) | Anti-theft case with radio remote control device | |
| CN205417865U (en) | High sensitivity's long -range burglar alarm of electric motor car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190521 |
|
| RJ01 | Rejection of invention patent application after publication |