CN109798381A - A kind of 51 single-chip microcontroller induction taps of application - Google Patents
A kind of 51 single-chip microcontroller induction taps of application Download PDFInfo
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- CN109798381A CN109798381A CN201711147868.4A CN201711147868A CN109798381A CN 109798381 A CN109798381 A CN 109798381A CN 201711147868 A CN201711147868 A CN 201711147868A CN 109798381 A CN109798381 A CN 109798381A
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- infrared
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- induction taps
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Abstract
The present invention relates to a kind of 51 single-chip microcontroller induction taps of application, the present invention is made of infrared transmitting circuit, infrared receiver amplifying circuit, control circuit, solenoid valve, power supply etc..When persons or things close to when, automatically generate control signal, the actuating of relay obtains solenoid valve and electric is attracted to automatically open water source；It is on the contrary then water source is automatically closed.Compared with traditional water supply facility, the present invention can be improved the service efficiency of water resource.It is easy to use, and due to not needing to contact tap with hand, avoid the propagation of germ.
Description
Technical field
The invention patent relates to 51 single-chip microcontroller induction taps of Eletronmechanical Design Technique field more particularly to a kind of application.
Background technique
Many people have such experience in daily life, and whenever cooking in kitchen, both hands are always stained with grease, want to use
Oily both hands are opened tap and are rinsed, and worry to stay in grease on the switch of tap, cause cleaning in the future inconvenient.
And for the tap in public place, with contact people more than, just have many bacteriums above, contact will take thin every time
Bacterium is detrimental to health.Especially medical tap more needs to pay attention in terms of avoiding bacterial cross-infection.And for general
For logical tap, it not can avoid these troubles, but induction type water-saving tap can just help you to solve these to ask completely
Topic.It is automatically performed without contacting any position of faucet, water outlet and pass water by inductor, can effectively avoid bacterial cross-infection,
The automatic outletting in induction range simultaneously is finished automatic turning off water feature and also plays the effect for saving water resource.
Patent of invention content
The invention patent relates to a kind of 51 single-chip microcontroller induction taps of application, the present invention is put by infrared transmitting circuit, infrared receiver
The compositions such as big circuit, control circuit, solenoid valve, power supply.When persons or things close to when, automatically generate control signal, relay is dynamic
Make, solenoid valve is made to obtain electric be attracted to automatically open water source；It is on the contrary then water source is automatically closed.
Compared with traditional water supply facility, the present invention can be improved the service efficiency of water resource.It is easy to use, and due to being not required to
Tap is contacted with hand, avoids the propagation of germ.
Detailed description of the invention
Fig. 1: reflection infrared sensor figure.
Fig. 2: system group picture.
Fig. 3: infrared emission record principle figure.
Fig. 4: luminous intensity response curve figure.
Fig. 5: infrared to receive electric operation control circuit figure.
Fig. 6: voltage amplifier circuit figure.
Fig. 7: three terminal regulator block diagram.
Specific embodiment
In order to which the objects, technical solutions and advantages of the invention patent are more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the invention patent.It should be appreciated that specific embodiment described herein is only used to explain
The invention patent is not intended to limit the present invention patent.
The invention patent relates to a kind of 51 single-chip microcontroller induction taps of application, the present invention by infrared transmitting circuit, infrared connect
Receive the composition such as amplifying circuit, control circuit, solenoid valve, power supply.When persons or things close to when, automatically generate control signal, relay
Device movement makes solenoid valve obtain electric be attracted to automatically open water source；It is on the contrary then water source is automatically closed.
Further, present invention employs reflection infrared sensors.The transmitting and reception of infrared ray are generally using infrared
Light emitting diode and infrared receiving tube are completed.When have object close to when, a part of infrared light is launched into reception pipe.It is reflective
Infrared sensor (as shown in Figure 1).Reflective photoelectric sensor can be used to detect the variation of ground light and shade and color, can also be with
Whether there is or not close objects for detection.The infrared control automatic faucet that the present invention designs just has used its this feature.Spectrum model
It encloses, sensitivity, anti-interference ability, output characteristics etc. is all the important parameter of reflective photoelectric sensor.This photoelectric sensor
Basic principle be, as people or when having object proximity, to have blocked infrared light, light-sensitive element receives optical signal, to carry out light
Electricity conversion, opens water source by comparator to control relay.The control process of infrared control automatic faucet is: when
When people or object is close to automatic faucet, the infrared of infrared emission photoelectric tube sending is reflected into infrared receiver photoelectricity through people and object
Pipe.It receives the reflected light signal that photoelectric tube receives and is automatically converted to electric signal, compare by comparator, export low electricity more afterwards
Flat, water source is opened in the last driving circuit control actuating of relay.When manpower or object leave automatic faucet, photoelectric tube is received
Reflected light signal is not received, compares output high level by comparator, disconnects relay, to close water source.
Further, the entire control process of infrared ray automatic control water tap is divided into 4 parts.System group group picture such as Fig. 2
It is shown.
Further, the present invention, which is used, can be improved the reliability of system and accurate to the method that reflective light intensity measures
Property.The measuring principle of infrared external reflection photon flux method be will emit signal it is modulated after give infrared tube transmitting, photosensitive tube receive modulation
Infrared signal (as shown in Figure 3), the output signal voltage (Vout) of intensity of reflected light be between reflecting surface and sensor away from
Function from (X), if reflecting surface substance is substance of the same race, the response curve of X and Vout are nonlinear (as shown in Figure 4).
Further, infrared ray fire hose head control circuit of the invention includes infrared detection circuit (photoelectric tube), ratio
Compared with device circuit (LM358), relay circuit (SRD-05VDC-SL-C), LED circuit.
Further, infrared ray fire hose head control circuit working principle of the invention: microcomputer chip is powered on through just
After beginningization, control transmitting tube constantly emits infrared light, the infrared light region before the hand of human body is placed on the induction window of induction tap
When interior, due to the gear of picking up of manpower, received after a part of infrared light reflection by infrared receiving terminal (pipe), by photoelectricity turn and micro- electricity
After brain processing, driver exports 30ms forward current, and impulse electromagnetic valve is opened；Before manpower leaves induction window in infrared light region
When, infrared receiving terminal is not received by signal, and after micro computer processing, driver exports 30ms reverse current, impulse electromagnetic valve
It closes, waits next signal, micro computer is in sleep state at this time, and power consumption only has 1uA.Infrared tap control process is, when
When people or object is close to automatic faucet, what infrared emission photoelectric tube issued infrared is reflected into infrared receiver photoelectricity through people and object
Pipe receives the reflected light signal that receives of photoelectric tube and is automatically converted to electric signal, be further amplified by subsequent conditioning circuit, shaping,
Decoding, last driving circuit control electromagnetism valve events open water source.When manpower or object leave automatic faucet, photoelectricity is received
Pipe does not receive reflected light signal, and driving circuit powers off power of electromagnetic valve.The induction tap working principle that I designs: work as someone
When close, photoelectric tube becomes low level by high level, is compared by comparator, exports low level, and relay is attracted, alternating current
Pressure is switched on, to make the battery valve events of tap, water source is opened, here with LED simulation, when relay is attracted, LED
Lamp is bright, indicates that water source is opened.
Further, voltage-stabilized power supply circuit of the invention is output voltage+5V, exports electric current 1.5A regulated power supply.It
Voltage transformer B, bridge rectifier D1 ~ D4, filter capacitor C1.C3 prevent self-excited circuit C2, C3 and fixed three end
Voltage-stablizer (7805) is extremely simple and convenient to be barricaded as.
Further, the infrared control circuit that receives of the invention is with small-sized integrated infrared receiver/demodulation block accepting header
SFM506-38 and phase-locked loop circuit.It has it is small in size, it is good without outer member, anti-optical jamming performance, accepts angle is wide,
The advantages that low in energy consumption, high sensitivity.LM567, switch amplifying circuit VT9013, solid-state relay TAC08, solenoid valve constitute control
Circuit.Infrared remote controller is widely used on various types of household appliances, its appearance is provided using electric appliance
Many conveniences.Infra-red sensor switch has automatic control equipment, antitheft, the automatic equipment personal protection of lighting safety etc.
Be widely applied very much.There are two critical elements in passive infrared detector.One is pyroelectric infrared sensor
(PIR) it is electric signal and can be to the white light signal in nature that wavelength can be infrared signal change transitions between 8-12um by it
When no human motion, pyroelectric infrared sensor incudes in inhibited therefore security area in passive infrared detector
To only ambient temperature sensed by Fresnel Lenses pyroelectric infrared sensor into people security area when human body is human body
The basic conception of the difference signal of the temperature and ambient temperature therefore infrared acquisition of infrared detector be exactly inducing moving objects with
The difference of the temperature of background object.
Further, the present invention uses following scheme, as shown in figure 5, the present invention is controlled by the low and high level of output
Relay K is attracted, and is closed its normally opened contact, so that tap is released tap water, while LED issues light, is indicated the positive work of tap
Make in the state of discharging water.Washing finishes, and after hand leaves tap, stops discharging water, and LED extinguishes.
Further, voltage amplifier circuit of the invention uses LM358 integrated operational amplifier, (as shown in Figure 6).
LM358 is high-performance internally-compensated operational amplifier, low in energy consumption, is compensated without foreign frequency, has short-circuit protection and offset voltage
Zeroing ability.The pin function of LM358 is: 1 foot is output end, and 2 feet are inverting input terminal, and 3 feet are non-inverting input terminal, and 4 feet are
Negative power end, 5 feet are non-inverting input terminal, and 6 feet are inverting input terminal, and 7 feet are output end, and 8 feet are power supply VCC.There are two altogether
Comparator, internal frequency compensation, DC voltage gain height (about 100dB), unit gain bandwidth (about 1MHz), supply voltage model
Enclose width: single supply (3-30V)；Dual power supply (± 1.5 one ± 15V), low power consumption current are suitable for battery power supply, and low input is inclined
Stream, low input offset voltage and offset current, common-mode input voltage range is wide, including ground connection.Differential-mode input voltage range is wide, etc.
In supply voltage range, output voltage swing is big (0 to Vcc-1.5V).Include inside LM358 there are two independent, high-gain,
The dual operational amplifier of internal frequency compensation is suitable for the very wide single supply of supply voltage range and uses, is also applied for dual power supply
Operating mode, under the operating condition of recommendation, source current is unrelated with supply voltage.Its use scope includes Sense Amplification
Device, DC current gain mould group, the use of audio-frequency amplifier, Industry Control, DC gain elements and other all available single supply power supplies
The occasion of operational amplifier.
Further, the working principle (as shown in Figure 7) of three terminal regulator of the invention: start-up circuit is built for constant-current source
It stands operating point and is arranged.Constant-current source setting is to enable voltage-stablizer in reference voltage formation and error amplifier circuit
The work of enough normal reliables in bigger voltage change range.It is provided with two kinds of more perfect protection electricity in the chip
Road: first is that overcurrent protection, first is that overheating protection Rsc is the sample resistance of overcurrent protection.Ri, Rb are output sampling resistor.Rb
On both ends voltage (reflection output voltage size sampled voltage) and reference voltage be compared in error amplifier and
Amplification generates error voltage, the working condition of control adjustment pipe is gone, to stabilize the output voltage.
The above description is only a preferred embodiment of the patent of the present invention, is not intended to limit the invention patent, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the invention patent within the spirit and principle of patent of invention
Protection scope within.
Claims (8)
1. the present invention is by infrared transmitting circuit, infrared receiver the invention patent relates to a kind of 51 single-chip microcontroller induction taps of application
The composition such as amplifying circuit, control circuit, solenoid valve, power supply.
2. a kind of 51 single-chip microcontroller induction taps of application according to claim 1, which is characterized in that when persons or things are close
When, control signal is automatically generated, the actuating of relay makes solenoid valve obtain electric be attracted to automatically open water source；On the contrary then automatic pass
Close water source.
3. a kind of 51 single-chip microcontroller induction taps of application according to claim 1, which is characterized in that present invention employs anti-
Penetrate formula infrared sensor.
4. a kind of 51 single-chip microcontroller induction taps of application according to claim 1, which is characterized in that the present invention is used to anti-
Penetrating the method that light intensity measures can be improved the reliability and accuracy of system.
5. a kind of 51 single-chip microcontroller induction taps of application according to claim 1, which is characterized in that infrared ray of the invention
Fire hose head control circuit includes infrared detection circuit (photoelectric tube), comparator circuit (LM358), relay circuit (SRD-
05VDC-SL-C), LED circuit.
6. a kind of 51 single-chip microcontroller induction taps of application according to claim 1, which is characterized in that pressure stabilizing electricity of the invention
Source circuit is output voltage+5V, exports electric current 1.5A regulated power supply.
7. a kind of 51 single-chip microcontroller induction taps of application according to claim 1, which is characterized in that of the invention infrared to connect
It is with small-sized integrated infrared receiver/demodulation block accepting header SFM506-38 and phase-locked loop circuit by control circuit.
8. a kind of 51 single-chip microcontroller induction taps of application according to claim 1, which is characterized in that voltage of the invention is put
Big circuit uses LM358 integrated operational amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711147868.4A CN109798381A (en) | 2017-11-17 | 2017-11-17 | A kind of 51 single-chip microcontroller induction taps of application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711147868.4A CN109798381A (en) | 2017-11-17 | 2017-11-17 | A kind of 51 single-chip microcontroller induction taps of application |
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| Publication Number | Publication Date |
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| CN109798381A true CN109798381A (en) | 2019-05-24 |
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ID=66554896
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711147868.4A Pending CN109798381A (en) | 2017-11-17 | 2017-11-17 | A kind of 51 single-chip microcontroller induction taps of application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661812A (en) * | 2020-05-06 | 2020-09-15 | 北京航天发射技术研究所 | Photoelectric sensing controller and filling equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949468A (en) * | 2010-09-21 | 2011-01-19 | 余姚市心雨洁具有限公司 | Low-power consumption infrared-sensing water faucet controller |
| CN202493762U (en) * | 2012-03-20 | 2012-10-17 | 陈秀华 | Novel faucet control device |
| US20130233387A1 (en) * | 2012-03-09 | 2013-09-12 | MUIRSIS Incorporated | Automatic sensor control panel |
| CN103398204A (en) * | 2013-08-19 | 2013-11-20 | 何林 | Infrared light-operated faucet |
| WO2016171306A1 (en) * | 2015-04-21 | 2016-10-27 | 엘지전자 주식회사 | Smart water supply valve system and method for controlling same |
-
2017
- 2017-11-17 CN CN201711147868.4A patent/CN109798381A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949468A (en) * | 2010-09-21 | 2011-01-19 | 余姚市心雨洁具有限公司 | Low-power consumption infrared-sensing water faucet controller |
| US20130233387A1 (en) * | 2012-03-09 | 2013-09-12 | MUIRSIS Incorporated | Automatic sensor control panel |
| CN202493762U (en) * | 2012-03-20 | 2012-10-17 | 陈秀华 | Novel faucet control device |
| CN103398204A (en) * | 2013-08-19 | 2013-11-20 | 何林 | Infrared light-operated faucet |
| WO2016171306A1 (en) * | 2015-04-21 | 2016-10-27 | 엘지전자 주식회사 | Smart water supply valve system and method for controlling same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661812A (en) * | 2020-05-06 | 2020-09-15 | 北京航天发射技术研究所 | Photoelectric sensing controller and filling equipment |
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Application publication date: 20190524 |