CN110439838A - A kind of human body based on photo resistance follows automatic speed regulating fan - Google Patents
A kind of human body based on photo resistance follows automatic speed regulating fan Download PDFInfo
- Publication number
- CN110439838A CN110439838A CN201910703612.XA CN201910703612A CN110439838A CN 110439838 A CN110439838 A CN 110439838A CN 201910703612 A CN201910703612 A CN 201910703612A CN 110439838 A CN110439838 A CN 110439838A
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- CN
- China
- Prior art keywords
- module
- photo resistance
- resistance
- human body
- fan
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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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
- F04D25/105—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air by changing rotor axis direction, e.g. oscillating fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
A kind of human body based on photo resistance provided by the invention follows automatic speed regulating fan；Including single chip control module, the input terminal of the single chip control module is connect with infrared measurement of temperature module and voltage comparison module respectively, voltage comparison module and photo resistance detect matrix, the output end of single chip control module is connect with ostrich machine drive module and PWM electric machine speed regulation module respectively, and the photo resistance detection matrix includes four photo resistance detection modules.The present invention installs inductor by four parallel directions around fan, and the motor-driven work of single-chip microcontroller control flaps realizes that fan is rotated with the direction of human motion；It is measured by body temperature of the infrared speed measuring module to the human body in front, realizes and rotation speed of the fan is adjusted according to body temperature.
Description
Technical field
The present invention relates to a kind of human bodies based on photo resistance to follow automatic speed regulating fan.
Background technique
The current fan overwhelming majority is mechanically to be fixed on specific position, so that fan turns when human motion
Dynamic direction cannot follow human body, not only become the puzzlement of people to a certain extent, in addition, body of the revolving speed of fan to everyone
Temperature also has different places, if revolving speed is excessive, the problems such as easily leading to people's cat fever if revolving speed is too small, and cannot relax to people
Suitable feeling.Other fans also have a case that similar.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of human bodies based on photo resistance to follow automatic speed-regulating wind
Fan.
The present invention is achieved by the following technical programs.
A kind of human body based on photo resistance provided by the invention follows automatic speed regulating fan；Mould is controlled including single-chip microcontroller
Block, the input terminal of the single chip control module are connect with infrared measurement of temperature module and voltage comparison module respectively, and voltage compares mould
Block and photo resistance detect matrix, the output end of single chip control module respectively with ostrich machine drive module and PWM electric machine speed regulation mould
Block connection, the photo resistance detection matrix includes four photo resistance detection modules.
Stating single chip control module includes chip U2.
The voltage comparison module includes voltage comparator U5, and 1 foot of comparator U5 meets the 1 foot P1.0 of single-chip microcontroller U2, than
4 feet ground connection compared with device U5,7 feet of comparator U4 meet the 2 foot P1.1 of single-chip microcontroller U2, and 8 feet of comparator U5 meet power supply VCC.
Four photo resistance detection modules include a photo resistance and a conventional, electric-resistance, photosensitive surface resistance
One end ground connection, one end of conventional, electric-resistance connect with power supply VCC, after the other end of four photosensitive surface resistances and conventional, electric-resistance and connection
It is connect respectively with 2,3,5,6 pins of voltage comparator U3.
The servo driving module includes steering engine MT1, and 1 foot of steering engine MT1 connects power supply VCC, 2 feet ground connection, 3 foot order pieces
The 10 foot RXD of machine U2.
The PWM electric machine speed regulation module includes resistance R5, triode Q1, fan motor J1, one end order piece of resistance R5
The 32 foot P0.7 of machine U2, the base stage of other end triode Q1, one end of emitter wind-receiving fan motor J1, grounded collector GND, wind
Fan another termination power VCC of motor J1.
The infrared measurement of temperature module includes infrared speed measuring module U1, and 1 foot of infrared measurement of temperature module U1 connects the 39 of single-chip microcontroller U2
Foot P0.0,2 feet of infrared measurement of temperature module U1 meet the 38 foot P0.1 of single-chip microcontroller U2, and 3 feet of infrared measurement of temperature module U1 are grounded GND, red
4 feet of outer temperature measurement module U1 meet power supply VCC.
The resistance value of described resistance R1, R2, R6, R7 are 300 ohm, and the resistance value of photo resistance R3, R4, R9, R10 are 10,000
Ohm.
Any one in S135, S135C, S136G, S3001 can be used in the steering engine MT1.
The voltage comparator U2 is LM393, and the chip U1 is STC89C52
The beneficial effects of the present invention are: inductor, single-chip microcontroller control are installed by four parallel directions around fan
Steering engine movement processed realizes that fan is rotated with the direction of human motion；By infrared speed measuring module to the body temperature of the human body in front
It measures, realizes and rotation speed of the fan is adjusted according to body temperature.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is electrical block diagram of the invention.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
A kind of human body based on photo resistance follows automatic speed regulating fan；Including single chip control module, the single-chip microcontroller
The input terminal of control module is connect with infrared measurement of temperature module and voltage comparison module respectively, and voltage comparison module and photo resistance are examined
Matrix is surveyed, the output end of single chip control module is connect with ostrich machine drive module and PWM electric machine speed regulation module respectively, described photosensitive
Resistance detection matrix includes four photo resistance detection modules.
Stating single chip control module includes chip U2.
The voltage comparison module includes voltage comparator U5LM393 type, and 1 foot of comparator U5 connects 1 foot of single-chip microcontroller U2
4 feet of P1.0, comparator U5 are grounded, and 7 feet of comparator U4 meet the 2 foot P1.1 of single-chip microcontroller U2, and 8 feet of comparator U5 connect power supply
VCC。
Four photo resistance detection modules include a photo resistance and a conventional, electric-resistance, photosensitive surface resistance
One end ground connection, one end of conventional, electric-resistance connect with power supply VCC, after the other end of four photosensitive surface resistances and conventional, electric-resistance and connection
It is connect respectively with 2,3,5,6 pins of voltage comparator U3.
The servo driving module includes steering engine MT1, and 1 foot of steering engine MT1 connects power supply VCC, 2 feet ground connection, 3 foot order pieces
The 10 foot RXD of machine U2.
The PWM electric machine speed regulation module includes resistance R5, triode Q1, fan motor J1, one end order piece of resistance R5
The 32 foot P0.7 of machine U2, the base stage of other end triode Q1, one end of emitter wind-receiving fan motor J1, grounded collector GND, wind
Fan another termination power VCC of motor J1.
The infrared measurement of temperature module includes infrared speed measuring module U1GY-906-BCC, the 1 foot order of infrared measurement of temperature module U1
The 39 foot P0.0 of piece machine U2,2 feet of infrared measurement of temperature module U1 connect the 38 foot P0.1 of single-chip microcontroller U2,3 feet of infrared measurement of temperature module U1
It is grounded GND, 4 feet of infrared measurement of temperature module U1 meet power supply VCC5V.
The resistance value of described resistance R1, R2, R6, R7 are 300 ohm, and the resistance value of photo resistance R3, R4, R9, R10 are 10,000
Ohm.
Any one in S135, S135C, S136G, S3001 can be used in the steering engine MT1.
The voltage comparator U2 is LM393, and the chip U1 is STC89C52.
System Working Principle: resistance R1, photo resistance R4 detection module A in circuit, similarly resistance R2, R6, R7, photosensitive
Resistance R3, R8, R9 constitute detection module B, C, D.When circuit works, if clear in front of modules A, the resistance value of photo resistance R4
It changes very little, A point current potential is in burning voltage, blocks photo resistance R4 when there are objects moving (human motion), resistance value occurs
Variation, A point current potential change, and 2 feet of voltage comparator U3 receive the voltage of its variation, by electric with the C of detection module C point
Bit comparison, if the A point current potential of modules A is greater than the C point current potential of module C, the 1 foot output TTL logic low electricity of voltage comparator U3
Flat, single-chip microcontroller U2 controls steering engine MT1 according to this signal and works, and steering engine rotates fan toward modules A direction.Otherwise C point current potential
Higher than A point current potential, 1 foot of voltage comparator U3 exports TTL logic high, so that fan is rotated toward module C.Similarly module B
B point current potential be greater than the D point current potential of module D, 7 feet of voltage comparator U3 export TTL logic low, and single-chip microcontroller controls steering engine
Rotation, steering engine rotate fan toward module B, otherwise the D point current potential of module D is greater than the B point current potential of module B, voltage comparator
7 feet of U3 export TTL logic high, and single-chip microcontroller controls steering engine rotation, and steering engine rotates fan toward module D.Realize wind
Fan follows barrier (human body) mobile in four direction.While photo resistance detection matrix work, infrared measurement of temperature module U1
Launch infrared ray, the body temperature of the human body in front of fan is measured, 39 feet of single-chip microcontroller U2 are sent to by 1 foot SDA
P0.0, single-chip microcontroller judge the size for adjusting rotation speed of the fan according to body temperature size of data, and exporting PWM by 32 feet, (pulse is wide
Degree is modulated) signal, the revolving speed of motor is further adjusted, if body temperature is excessively high, rotation speed of the fan is big, otherwise is small, realization root
Rotation speed of the fan is adjusted according to body temperature.
When system works, modules A will test, B, C, D are attached separately to the right and left each one of fan, upper and lower both sides each one
It is a, if when barrier is not detected in four direction detection module A, B, C, D of fan, (human body is not moved when normal operation
It is dynamic), the current potential of tetra- points of A, B, C, D is in stable state, 1 foot of voltage comparator U3,7 foot Non voltage outputs, steering engine MT1
It is failure to actuate.When having human motion, if human body is in the matrix area that four detection modules A, B, C, D are surrounded, voltage compares
Device U3 Non voltage output, system are determined as no human motion, steering engine MT1 attonity；If when human motion, any detection mould at this time
Block A, B, C, D detect that human motion, single-chip microcontroller control steering engine rotate fan toward corresponding detection module direction, thus
Realize fan directional tracking.In addition, infrared speed measuring module U1 emits infrared ray, to the people in front during fan rotation
The body temperature of body measures, and sends temperature data to the 39 foot P0.0 of single-chip microcontroller U2 by 1 foot SDA, single-chip microcontroller is according to body
Warm size of data exports PWM (pulse width modulation) signal by 32 feet, further adjusts the revolving speed of motor, realize according to people
Body body heat regulation rotation speed of the fan.The present invention has perfect control system and treatment process, can meet according to the actual situation more
Kind use demand.
Claims (10)
1. a kind of human body based on photo resistance follows automatic speed regulating fan, it is characterised in that: including single chip control module, institute
The input terminal for stating single chip control module is connect with infrared measurement of temperature module and voltage comparison module respectively, voltage comparison module and light
Quick resistance detection matrix, the output end of single chip control module are connect with ostrich machine drive module and PWM electric machine speed regulation module respectively,
The photo resistance detection matrix includes four photo resistance detection modules.
2. the human body based on infrared induction follows automatic speed regulating fan as described in claim 1, it is characterised in that: state single-chip microcontroller
Control module includes chip U2.
3. the human body based on infrared induction follows automatic speed regulating fan as described in claim 1, it is characterised in that: the voltage
Comparison module includes voltage comparator U5 (LM393 type), and 1 foot of comparator U5 meets the 1 foot P1.0 of single-chip microcontroller U2, comparator U5's
4 feet ground connection, 7 feet of comparator U4 meet the 2 foot P1.1 of single-chip microcontroller U2, and 8 feet of comparator U5 meet power supply VCC.
4. the human body based on photo resistance follows automatic speed regulating fan as described in claim 1, it is characterised in that: described four
Photo resistance detection module includes a photo resistance and a conventional, electric-resistance, one end ground connection of photosensitive surface resistance, common electricity
One end of resistance is connect with power supply VCC, after the other end of four photosensitive surface resistances and conventional, electric-resistance and connection respectively compared with voltage
2,3,5,6 pins of device U3 connect.
5. the human body based on photo resistance follows automatic speed regulating fan as described in claim 1, it is characterised in that: the steering engine
Drive module includes steering engine MT1, and 1 foot of steering engine MT1 meets power supply VCC, 2 feet ground connection, and 3 feet meet the 10 foot RXD of single-chip microcontroller U2.
6. the human body based on photo resistance follows automatic speed regulating fan as described in claim 1, it is characterised in that: the PWM
Electric machine speed regulation module includes resistance R5, triode Q1, fan motor J1, and one end of resistance R5 meets the 32 foot P0.7 of single-chip microcontroller U2,
The base stage of other end triode Q1, one end of emitter wind-receiving fan motor J1, grounded collector GND, fan motor J1's is another
Termination power VCC.
7. the human body based on photo resistance follows automatic speed regulating fan as described in claim 1, it is characterised in that: described infrared
Temperature measurement module includes infrared speed measuring module U1 (GY-906-BCC), and 1 foot of infrared measurement of temperature module U1 connects 39 feet of single-chip microcontroller U2
P0.0,2 feet of infrared measurement of temperature module U1 meet the 38 foot P0.1 of single-chip microcontroller U2, and 3 feet of infrared measurement of temperature module U1 are grounded GND, infrared
4 feet of temperature measurement module U1 meet power supply VCC (5V).
8. the human body based on photo resistance as described in claim 2~6 follows automatic speed regulating fan, it is characterised in that: described
The resistance value of resistance R1, R2, R6, R7 are 300 ohm, and the resistance value of photo resistance R3, R4, R9, R10 are 10 kilohms.
9. the human body based on photo resistance follows automatic speed regulating fan as claimed in claim 5, it is characterised in that: the steering engine
Any one in S135, S135C, S136G, S3001 can be used in MT1.
10. the human body based on photo resistance as described in claim 2~6 follows automatic speed regulating fan, it is characterised in that: described
Voltage comparator U2 is LM393, and the chip U1 is STC89C52.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910703612.XA CN110439838A (en) | 2019-07-31 | 2019-07-31 | A kind of human body based on photo resistance follows automatic speed regulating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910703612.XA CN110439838A (en) | 2019-07-31 | 2019-07-31 | A kind of human body based on photo resistance follows automatic speed regulating fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110439838A true CN110439838A (en) | 2019-11-12 |
Family
ID=68432667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910703612.XA Withdrawn CN110439838A (en) | 2019-07-31 | 2019-07-31 | A kind of human body based on photo resistance follows automatic speed regulating fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110439838A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7145653B1 (en) * | 2000-06-09 | 2006-12-05 | Advanced Micro Devices, Inc. | In situ particle monitoring for defect reduction |
| CN203500077U (en) * | 2013-09-23 | 2014-03-26 | 苏州经贸职业技术学院 | Pyroelectric human body infrared-based fan intelligent temperature control system |
| CN208922128U (en) * | 2018-11-18 | 2019-05-31 | 南宁学院 | A kind of microphone tracing detection circuit based on photo resistance |
-
2019
- 2019-07-31 CN CN201910703612.XA patent/CN110439838A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7145653B1 (en) * | 2000-06-09 | 2006-12-05 | Advanced Micro Devices, Inc. | In situ particle monitoring for defect reduction |
| CN203500077U (en) * | 2013-09-23 | 2014-03-26 | 苏州经贸职业技术学院 | Pyroelectric human body infrared-based fan intelligent temperature control system |
| CN208922128U (en) * | 2018-11-18 | 2019-05-31 | 南宁学院 | A kind of microphone tracing detection circuit based on photo resistance |
Non-Patent Citations (1)
| Title |
|---|
| 李献宇,钱田义: "《基于STC89C52的智能跟踪调速风扇***》", 《电脑知识与技术》 * |
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Application publication date: 20191112 |