CN2284419Y - Cool and warm sensing indicator for child - Google Patents
Cool and warm sensing indicator for child Download PDFInfo
- Publication number
- CN2284419Y CN2284419Y CN 96239675 CN96239675U CN2284419Y CN 2284419 Y CN2284419 Y CN 2284419Y CN 96239675 CN96239675 CN 96239675 CN 96239675 U CN96239675 U CN 96239675U CN 2284419 Y CN2284419 Y CN 2284419Y
- Authority
- CN
- China
- Prior art keywords
- temperature
- children
- circuit
- cool
- oscillator
- 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.)
- Expired - Fee Related
Links
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- Emergency Alarm Devices (AREA)
Abstract
The utility model relates to a cool and warm sensing indicator for children, which is characterized in that the control circuit of the cool and warm sensing indicator for children comprises a dual-voltage comparison circuit which is composed of a temperature measurement circuit and a dual-voltage comparator, and a controllable tone modulated oscillation circuit which is composed of a controllable low-frequency modulation oscillator, a controllable audio oscillator, a controllable gate and a signal relieving switch. The electric potential value of the safe temperature of the cool and warm sensing indicator for children can be adjusted slick according to different seasons and the physical situations of children. Because the cool and warm sensing indicator for children can emit different reminding sounds when the temperature is too low or too high, parents can know the current cool or warm condition of children immediately and can increase or reduce clothes and quilts according to a specific condition. The utility model can also in time stop the continued emitting of signal, which can not influence the rest of other people.
Description
The utility model relates to the cold and hot perceptron of a kind of children, especially for children in bed temperature cross and can in time remind the adult when low or too high, allow the cold and hot perceptron of the cold and hot situation that the adult knows that child is current simultaneously.
Child is pedaled quilt in bed that to open be recurrent thing unconsciously, has both made in colder season, and child is also often pedaled out quilt, and child very easily catches a cold sick like this.For this reason, people have designed when the child body surface temperature and have crossed the low device that can send chimes of doom.But this class device is because what generally adopt is the simple combination of temperature detection element, electronic music integrated package, is detected a little temperature and changes slightly will continue to report to the police and recover normally will inevitably influence adult's normal rest like this up to the temperature of measured point.
The purpose of this utility model provides and a kind ofly can overcome above-mentioned deficiency, can cross low or too high the differentiation to temperature and send different prompting sound, and can in time end the cold and hot perceptron of children of alerting signal.
The purpose of this utility model is achieved in that it is made up of power supply, temperature-sensing probe, control circuit and acousto-optic element, it is characterized in that the control circuit of this perceptron comprises:
Two voltage comparator circuits (2) are made of the potential value when being used to set safe temperature, the voltage signal that produces because of temperature variation in detecting temperature and the comparator circuit temperature measurement circuit and two voltage comparator;
Controlled tone-modulated oscillation circuit (3), constitute by controlled low frequency modulations oscillator, controlled audio frequency oscillator, controllable gate and signal relief switch, this circuit starts vibration and produces different alerting signals under the triggering of the comparison signal of two voltage comparator circuit outputs, and available signal cancel switch abort signal continues to send.
The utility model has the advantages that: the potential value in the time of adjusting safe temperature in the perceptron neatly according to different seasons and child's physical condition, perceptron will send signal and reminds the adult to go to help child when needing really like this.Because perceptron is crossed the prompting sound difference of sending when low or too high in temperature,, and add to child as the case may be and subtract clothing so the adult just knows the cold and hot situation that child is current immediately.Signal relief switch in the utility model can make the adult know child want help after in time abort signal continue send, have a rest in order to avoid influence other people.
Fig. 1 is circuit theory diagrams of the present utility model.
Among Fig. 1, C
1, R
2--R
5, P
1And U
1Constitute two voltage comparator circuits.P wherein
1Be potentiometer, by adjusting P
1But, the statement potential value of comparator circuit during safe temperature; R
3Be thermistor, when temperature variation, R
3Resistance also changes thereupon, and the resting potential value is changed.
C
2--C
5, R
6--R
9, U
2Constituted controlled tone-modulated oscillation circuit.Wherein, U
2Comprise low frequency modulations oscillator U
2: A, U
2: B, audio frequency oscillator U
2: C, controllable gate U
2: D.Set low frequency modulations oscillator U
2: A and U
2: the oscillation frequency of B, can send different signals, and modulating audio frequency oscillator U
2: C makes it to produce different sound signals, by controllable gate U
2: D driven for emitting lights diode D
3And piezoelectric speaker BP sends alerting signal.
1 pair of the utility model is described in further detail with reference to the accompanying drawings.
Will be by temperature-sensitive R
3The temperature-sensing probe of making is tied up the thermally sensitive position of child Yu, is connected to alarm set by soft lead.When the tested position of child during in normal range, input 3 pin of two voltage comparators and the current potential of 6 pin can not start U
1, so U
1Output signal is zero.
When tested position temperature raises, R
3Resistance increases, and makes two voltage comparator U
2: 3 pin of A input current potential raises, and when temperature raises when surpassing design temperature, the input current potential on 3 pin also can surpass sets potential value, U
2: A makes modulating oscillator U by 1 pin output noble potential
2: A starts vibration, U
2: the output signal modulating audio frequency device U of A
2: C makes U
2: C sends sound signal and passes through controllable gate U
2: D driven for emitting lights diode D
3With piezoelectric speaker BP, the adult just can hear or see alerting signal.
When tested position temperature reduces, R
3Resistance reduces, U
1: B input end 6 pin current potentials reduce, when being lower than 5 pin setting level, and U
1: B is by 7 pin start signal output U
2: B, U
2: B is by 4 pin output modulating audio frequency oscillator U
2: C, through process same as described above, send alerting signal.Because U
2: A and U
2: the B oscillation frequency is set in advance, so the signal difference of sending, and adult one knows the cold and hot situation that child is present as one pleases.After alerting signal sends, as long as the adult clicks signal relief button SW
1, can send by abort signal.Moments later alerting signal automatically restores to alert status again.
The utility model uses the 6V powered battery, and because of using cmos circuit, so power consumption is minimum, cost is very low, and working stability is reliable.
Claims (1)
1, the cold and hot perceptron of a kind of children is made up of power supply, temperature-sensing probe, control circuit and acousto-optic element, it is characterized in that, the control circuit of this perceptron comprises:
Two voltage comparator circuits (2), constitute by temperature measurement circuit and two voltage comparator, wherein the temperature sensor that is made of thermistor R3 is received (+) input end of two warm comparer U1:A and (-) input end of U1:B simultaneously, the resting potential value of comparator circuit when this circuit is used to set safe temperature, detecting temperature and the voltage signal that relatively produces because of temperature variation
Controlled tone modulated oscillator (3), by controlled low frequency modulations oscillator, controlled audio frequency oscillator, controllable gate and signal cancel switch constitute, wherein the input end of low frequency modulations oscillator U2:A and U2:B links to each other with the output terminal of two temperature comparers respectively, output terminal is connected on the audio frequency oscillator U2:C by diode D1 and D2, the output terminal of U2:C outputs to piezoelectric speaker BP and light emitting diode D3 by controllable gate U2:D, this circuit starts vibration and produces different alerting signals under the triggering of two voltage comparator circuit comparison signals, and available signal cancel switch SW1 abort signal continues to send.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96239675 CN2284419Y (en) | 1996-10-24 | 1996-10-24 | Cool and warm sensing indicator for child |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96239675 CN2284419Y (en) | 1996-10-24 | 1996-10-24 | Cool and warm sensing indicator for child |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2284419Y true CN2284419Y (en) | 1998-06-17 |
Family
ID=33914651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96239675 Expired - Fee Related CN2284419Y (en) | 1996-10-24 | 1996-10-24 | Cool and warm sensing indicator for child |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2284419Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536481A (en) * | 2014-11-29 | 2015-04-22 | 深圳市前海安测信息技术有限公司 | Adaptive cold-hot temperature control circuit, adaptive cold-hot temperature control circuit system, and special garment |
-
1996
- 1996-10-24 CN CN 96239675 patent/CN2284419Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536481A (en) * | 2014-11-29 | 2015-04-22 | 深圳市前海安测信息技术有限公司 | Adaptive cold-hot temperature control circuit, adaptive cold-hot temperature control circuit system, and special garment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Zhiwu Document name: payment instructions |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |