CN103989408A - Water fountain - Google Patents
Water fountain Download PDFInfo
- Publication number
- CN103989408A CN103989408A CN201410212741.6A CN201410212741A CN103989408A CN 103989408 A CN103989408 A CN 103989408A CN 201410212741 A CN201410212741 A CN 201410212741A CN 103989408 A CN103989408 A CN 103989408A
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- China
- Prior art keywords
- resistor
- water fountain
- chip microcomputer
- photo
- module
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- 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.)
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Abstract
The invention discloses a water fountain. The water fountain comprises a switching device, a photo-resistor, an A/D module and a single-chip microcomputer, wherein the photo-resistor, a variable resistor and a power supply form a series circuit, an analog current signal of the circuit is transmitted to the A/D module and converted into a digital signal to be transmitted to the single-chip microcomputer, and the single-chip microcomputer is connected with the switching device. Compared with the prior art, the switching device can be directly and automatically switched on or off according to the external illumination intensity through the water fountain instead of manual operation, and water fountain is convenient to use and practical.
Description
Technical field
The present invention relates to a kind of water fountain, specifically a kind of water fountain that can automatically open or close according to light intensity magnitude.
Background technology
At present, the water fountain of use is all manual opening, once open the heating that water will ceaselessly circulate.During working on daytime, water fountain also needs in heated condition always; After Hours, just need to close timely.But, always there will be nobody to close this water fountain, the water that makes water fountain in heated condition repeatedly, can produce some harmful substances in water always like this, does not utilize healthy.
Summary of the invention
The problem existing for above-mentioned prior art, the invention provides a kind of water fountain, automatically controls it open or close according to the size of intensity of illumination.
To achieve these goals, a kind of water fountain of the present invention, comprise switching device, photo-resistor, A/D module and single-chip microcomputer, photo-resistor, variable resistor become series circuit with power pack, the analog current signal of circuit passes to A/D module, and being converted into digital signal transfers to single-chip microcomputer, single-chip microcomputer is connected with switching device.
Preferably, photo-resistor is surface photoresponse device.
Preferably, photo-resistor is cadmium sulfide photoresistor.
In the time of by day, intensity of illumination is strong, the resistance of this photo-resistor is little, under certain supply voltage, electric current in circuit can increase, and this analog current signal just passes to A/D module, and this A/D module is converted to digital signal transfers to single-chip microcomputer current signal, single-chip microcomputer is analyzed this signal, and it goes opening of gauge tap device by the controller in it; On night, a little less than intensity of illumination, it is large that the resistance of this photo-resistor becomes, under certain supply voltage, the electric current in circuit can reduce, and this analog circuit signal just passes to A/D module, this A/D module is converted to digital signal transfers to single-chip microcomputer current signal, single-chip microcomputer is analyzed this signal, and it goes closing of gauge tap device by the controller in it, has realized the action opening or closing to switching device automatically.
Compared with prior art, do not need artificial going to open or close, the present invention can be directly according to the size of extraneous intensity of illumination, and the action automatically switching device being opened or closed is more convenient, practical.
Accompanying drawing explanation
Fig. 1 is electric theory diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of water fountain of the present invention, comprise switching device, photo-resistor, A/D module and single-chip microcomputer, photo-resistor, variable resistor become series circuit with power pack, the analog current signal of circuit passes to A/D module, and being converted into digital signal transfers to single-chip microcomputer, single-chip microcomputer is connected with switching device.
Because photo-resistor is very responsive to light, its resistance value is along with ambient light changes according to strong and weak variation, when by day, intensity of illumination is strong, and the resistance of this photo-resistor is little, under certain supply voltage, electric current in circuit can increase, and this analog current signal just passes to A/D module, and this A/D module is converted to digital signal transfers to single-chip microcomputer current signal, single-chip microcomputer is analyzed this signal, and it goes opening of gauge tap device by the controller in it; After Hours soon in state on night, a little less than intensity of illumination, it is large that the resistance of this photo-resistor becomes, under certain supply voltage, the electric current in circuit can reduce, and this analog circuit signal just passes to A/D module, this A/D module is converted to digital signal transfers to single-chip microcomputer current signal, single-chip microcomputer is analyzed this signal, and it goes closing of gauge tap device by the controller in it, has realized the action opening or closing to switching device automatically.
Preferably of the present invention, this photo-resistor is surface photoresponse device, and this surface photoresponse device is responsive especially to light, and it,, when without irradiation, is high-impedance state; When having irradiation, its resistance reduces rapidly, highly sensitive.
Preferably of the present invention, photo-resistor is cadmium sulfide photoresistor, and the photo-resistor cost that adopts this cadmium sulfide material to make is low, and practicality and performance are strong.
Claims (3)
1. a water fountain, described water fountain comprises switching device, it is characterized in that, also comprise photo-resistor, A/D module and single-chip microcomputer, described photo-resistor, variable resistor become series circuit with power pack, the analog current signal of described circuit passes to A/D module, and is converted into digital signal transfers to single-chip microcomputer, and described single-chip microcomputer is connected with switching device.
2. according to the water fountain described in claim 1, it is characterized in that, described photo-resistor is surface photoresponse device.
3. according to the water fountain described in claim 1 or 2, it is characterized in that, described photo-resistor is cadmium sulfide photoresistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212741.6A CN103989408A (en) | 2014-05-20 | 2014-05-20 | Water fountain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212741.6A CN103989408A (en) | 2014-05-20 | 2014-05-20 | Water fountain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103989408A true CN103989408A (en) | 2014-08-20 |
Family
ID=51303940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410212741.6A Pending CN103989408A (en) | 2014-05-20 | 2014-05-20 | Water fountain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103989408A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104799652A (en) * | 2015-05-05 | 2015-07-29 | 成都小爱未来智慧科技有限公司 | Light-started intelligent water cup capable of automatically turning on or off power supply and realizing method |
| CN109309490A (en) * | 2018-12-04 | 2019-02-05 | 苏州东剑智能科技有限公司 | Key circuit |
-
2014
- 2014-05-20 CN CN201410212741.6A patent/CN103989408A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104799652A (en) * | 2015-05-05 | 2015-07-29 | 成都小爱未来智慧科技有限公司 | Light-started intelligent water cup capable of automatically turning on or off power supply and realizing method |
| CN104799652B (en) * | 2015-05-05 | 2016-03-16 | 成都小爱未来智慧科技有限公司 | A kind ofly can automatically to open or the photopolymerization initiation Intelligent water cup of power cutoff and implementation method |
| CN109309490A (en) * | 2018-12-04 | 2019-02-05 | 苏州东剑智能科技有限公司 | Key circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140820 |