CN106940060A - A kind of oxygen monitoring device for bathroom - Google Patents
A kind of oxygen monitoring device for bathroom Download PDFInfo
- Publication number
- CN106940060A CN106940060A CN201710264842.1A CN201710264842A CN106940060A CN 106940060 A CN106940060 A CN 106940060A CN 201710264842 A CN201710264842 A CN 201710264842A CN 106940060 A CN106940060 A CN 106940060A
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- motor
- circuit
- mcu
- oxygen
- buzzer
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000001301 oxygen Substances 0.000 title claims abstract description 39
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 39
- 238000012806 monitoring device Methods 0.000 title claims abstract description 8
- 241000883990 Flabellum Species 0.000 claims abstract description 8
- 239000013078 crystal Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000004973 liquid crystal related substance Substances 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- MEGPURSNXMUDAE-RLMOJYMMSA-N scopoline Chemical compound C([C@H](O1)C2)[C@@H]3N(C)[C@H]2[C@H]1[C@H]3O MEGPURSNXMUDAE-RLMOJYMMSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 208000010513 Stupor Diseases 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003287 bathing Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
- G01N27/409—Oxygen concentration cells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/76—Oxygen
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Quality & Reliability (AREA)
- Atmospheric Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The present invention provides a kind of oxygen monitoring device for bathroom, including electric power management circuit, oxygen sensor, LCDs, MCU, amplifying circuit, buzzer, motor-drive circuit, motor and flabellum；MCU is connected with oxygen sensor, LCDs, amplifying circuit and motor-drive circuit, and amplifying circuit is connected with buzzer, and motor-drive circuit is connected with motor, and motor output end is connected with flabellum, and civil power is converted into device operating voltage by electric power management circuit；Set in the MCU and some oxygen concentration threshold ranges are set in threshold value comparison module, threshold value comparison module, one motor speed of each threshold range correspondence.
Description
Technical field
The present invention relates to a kind of monitoring technology, particularly a kind of oxygen monitoring device for bathroom.
Background technology
Data finds that, with the extension of bathtime, oxygen content is gradually reduced in bathroom, and is significantly less than air
In 21% oxygen content.Common people often occur uncomfortable in chest, dizzy etc. one in the case that oxygen content is less than 16% in atmosphere
A little symptoms, at this moment as having a breath of fresh air not in time, and are still stayed for a long time in such a case, people may severe depletion of oxygen cause dusk
Fan.As can be seen here, bathroom anoxic is to cause one of the reason for stupor death by accident occurs.This equipment is special exclusively for bathroom anoxic
Door makes research and development.
The content of the invention
It is an object of the invention to provide a kind of oxygen monitoring device for bathroom, the device possesses gas concentration
Detection, the feature of gas exchanges.
A kind of oxygen monitoring device for bathroom, including electric power management circuit, oxygen sensor, LCDs,
MCU, amplifying circuit, buzzer, motor-drive circuit, motor and flabellum；
MCU is connected with oxygen sensor, LCDs, amplifying circuit and motor-drive circuit；Amplifying circuit and buzzing
Device is connected；Motor-drive circuit is connected with motor；Motor drives fan blade rotating to move；Civil power is converted into device work by electric power management circuit
Make voltage；Set in the MCU in threshold value comparison module, threshold value comparison module and some oxygen concentration threshold ranges are set, it is each
Threshold range one motor speed of correspondence.
The present invention compared with prior art, with advantages below：(1) oxygen sensor is carried out to the concentration for bathing indoor oxygen
Detection, MCU is transmitted to by testing result with electric signal in real time, by LCDs, shows current oxygen solubility.When bath indoor oxygen
When gas concentration reaches a certain threshold range, motor is taken a breath according to the motor speed driving flabellum rotation corresponding to the threshold range.
(2) present apparatus operation is very simple, fully automatic operation, and only one button of need can opening device.
With reference to Figure of description, the invention will be further described.
Brief description of the drawings
Fig. 1 is system structure diagram of the invention.
Fig. 2 is oxygen sensor circuit diagram of the invention.
Fig. 3 is MCU minimum system circuit diagrams of the invention.
Fig. 4 is this practical buzzer alarm circuit figure.
Fig. 5 manages circuit diagram for the partial power of the present invention.
Fig. 6 is motor-drive circuit figure of the invention.
Embodiment
With reference to Fig. 1, a kind of oxygen monitoring device for bathroom, including electric power management circuit, oxygen sensor, liquid crystal
Display screen, MCU, amplifying circuit, buzzer, motor-drive circuit, motor and flabellum, MCU and oxygen sensor, LCDs,
Amplifying circuit is connected with motor-drive circuit；Amplifying circuit is connected with buzzer；Motor-drive circuit is connected with motor；Motor belt motor
Dynamic flabellum is rotated；Civil power (220V alternating currents) is converted into the operating voltage of system needs by electric power management circuit；Amplifying circuit is
Transistor amplifier；Buzzer is most simple alarm device；Oxygen sensor is used to monitor oxygen concentration in bathroom in real time, with mould
The mode for intending voltage passes to MCU；The effect of electric power management circuit be by the 220V alternating currents in life switch to motor driving plate,
The operating voltage of the devices such as MCU；The effect of motor-drive circuit is easy for MCU using pulse width modulation (PWM) technology to electricity
The speed of machine is adjusted；MCU minimum requirements is that inside possesses an ADC；System be provided be used for install electric power management circuit,
Oxygen sensor, LCDs, MCU, amplifying circuit, buzzer, motor-drive circuit, the waterproof case of motor, oxygen are passed
Sensor is popped one's head in and contacting external air, and the vapor touched in bathroom few to the greatest extent.
It is oxygen sensor circuit diagram with reference to Fig. 2, using electrochemical principle, the analogue value collected is transferred to MCU and entered
Row processing, the scope of measurement is 1-25%.
With reference to Fig. 3, MCU minimum systems include power supply, single-chip microcomputer, clock circuit, reset circuit.For a complete electricity
For son design, matter of utmost importance is exactly to provide power supply module for whole system, and the reliable and stable of power module is that system is put down
The premise surely run and basis.There is crystal oscillator in Singlechip clock system, in single-chip minimum system, crystal oscillator is acted on very
Greatly, crystal oscillator is named as entirely, his clock frequency with reference to needed for single-chip microcomputer internal circuit produces single-chip microcomputer, single-chip microcomputer crystal oscillator carries
The clock frequency of confession is higher, then the single-chip microcomputer speed of service is faster, and the execution for all instructions that monolithic connects all is built upon list
The clock frequency that piece machine crystal oscillator is provided.Reset circuit is resetted by button and electrification reset two parts are constituted, (1) electrification reset：
STM8 series monolithics and resetted for low level, one electric capacity (C13) of connection arrives GND generally on reset pin NRST, reconnects
One resistance (R16) arrives VCC, when being consequently formed a RC charging and discharging circuit and ensureing that single-chip microcomputer has enough when upper electric on NRST pin
Between low level resetted, then revert to high level and enter normal operating conditions.(2) button resets：Button resets
A switch in parallel in reset capacitance (C13), when switch is pressed, electric capacity (C13) is discharged, NRST is also pulled to low level,
And due to electric capacity (C13) charging, the low level of a period of time can be kept to make monolithic processor resetting.
Set in MCU of the present invention in threshold value comparison module, threshold value comparison module and some oxygen concentration threshold value models are set
Enclose, one motor speed of each threshold range correspondence.Two-stage alarming value, i.e. two-stage threshold value are for example set, when oxygen concentration in bathroom
When reaching secondary alarm value (18%), MCU will be according to current oxygen solubility, using pulse width modulation (PWM) technology to electricity
The speed of machine is adjusted.Allow motor to drive fan blade rotating to move, taken a breath.If oxygen concentration reaches one-level alarming value in bathroom
(16%) when, motor is rotated with most fast speed, while carrying out buzzer warning, substantially reduces stupor caused by bathroom anoxic dead
Die the probability of happening of accident.
It is transistor amplifier and buzzer circuit with reference to Fig. 4, triode is NPN type, because 9013 triode power
8550 is not big, so being driven using 8550 triodes, R1 is the current-limiting resistance of base stage.
It is partial power management circuit diagram with reference to Fig. 5,220V turns 24V voltages and directly uses isolating switch power module, tool
There are temperature protection, overcurrent protection and short-circuit full guard, high-low pressure isolation, 5V and 3.3V work are with voltage then using Hi-Link electricity
Source module, LM317 chips are depressured.C1, C2, C3, C4 in figure are filter capacitor.
It is motor-drive circuit with reference to Fig. 6, by isolating switch power, by the direct current that 220V AC conversion is 24V
Electricity, by Schottky diode (D1), 12V voltages, PWM are converted into by circuit of three-terminal voltage-stabilizing integrated IC chip (LM7812)
Signal is single-chip microcomputer output signal, therefore voltage magnitude only has 3.3V, and NPN triode (Q4) is input to by pull-up resistor (R4),
Recommending output mode, driving N-MOS pipes (Q3), the parallel connection one beside motor are constituted by NPN triode (Q2) and PNP triode (Q5)
Individual Schottky diode (D2) is also referred to as fly-wheel diode, and it is generally used to element of the protection with coil and not felt in circuit
Answer electromotive force reverse breakdown or burn out, the element two ends for producing induced electromotive force, and formed time are connected in parallel
Road, so that the element played a part of in protection circuit is not damaged by.
MCU uses the STM8 single-chip microcomputers of ST companies, requires that high-performance, low cost, the embedded of super low-power consumption should in aiming at
With the ARM Cortex kernels specially designed, peripheral interface enriches very much, and with Width funtion, it is mono- that we to be used STM38
The functions such as ADC, PWM that piece machine is carried.
Amplifying circuit uses transistor amplifier, and using 8550 triodes, cost performance is high.
Buzzer uses simplest active buzzer, and MCU is directly to one fixation of transistor base in amplifying circuit
Level, can just continue sounding.
LCDs uses the most frequently used LCD12864, is a kind of serially a variety of with 4/8 parallel-by-bits, 2 lines or 3 lines
Interface mode, the internal dot-matrix lcd module containing GB one-level, two grades of simplified form of Chinese Character character libraries；Its display resolution
For 128 × 64, built-in 8192 16*16 point Chinese characters, and 128 16*8 point ascii character-sets.
Claims (6)
1. a kind of oxygen monitoring device for bathroom, it is characterised in that including electric power management circuit, oxygen sensor, liquid crystal
Display screen, MCU, amplifying circuit, buzzer, motor-drive circuit, motor and flabellum；
MCU is connected with oxygen sensor, LCDs, amplifying circuit and motor-drive circuit,
Amplifying circuit is connected with buzzer,
Motor-drive circuit is connected with motor,
Motor output end is connected with flabellum,
Civil power is converted into device operating voltage by electric power management circuit；
Set in the MCU in threshold value comparison module, threshold value comparison module and some oxygen concentration threshold ranges, each threshold value are set
Scope one motor speed of correspondence.
2. device according to claim 1, it is characterised in that amplifying circuit is transistor amplifier.
3. device according to claim 1, it is characterised in that buzzer is alarm only in motor maximum (top) speed.
4. device according to claim 1, it is characterised in that it is dense that oxygen sensor is used for the indoor oxygen of monitoring bath in real time
Degree, passes to MCU in the way of analog voltage.
5. device according to claim 1, it is characterised in that MCU includes STM8S103K3T6 chips, clock circuit, answered
Position circuit；Wherein
Reset circuit includes electrification reset circuit and key reset circuit,
The RC discharge and recharges that electrification reset circuit is formed by the 13rd electric capacity (C13), the 6th resistance (R6) are bribed and constitute and be connected to
The reset pin NRST pins of STM8S103K3T6 chips, wherein the 13rd electric capacity (C13) is grounded, the 6th resistance (R6) connects work
Voltage,
Key reset circuit is made up of the key switch for being parallel to the 13rd electric capacity (C13)；
Clock circuit includes crystal oscillator and two load capacitances,
Crystal oscillator two ends connect OSCIN, OSCOUT pin of STM8S103K3T6 chips respectively,
Load capacitance one end connects the two ends of crystal oscillator respectively and the other end is grounded.
6. device according to claim 1, it is characterised in that motor-drive circuit includes isolating switch power, first Xiao
Special based diode (D1), LM7812 chips, pull-up resistor (R4), the 4th NPN triode (Q4), the second NPN triode (Q2),
Five PNP triodes (Q5), the 3rd N-MOS pipe (Q3) second Schottky diodes (D2)；Wherein
By isolating switch power by the DC voltage that 220V AC conversion is 24V,
24V DC voltage is converted into 12V voltages and transmitted to the 4th NPN tri- by Schottky diode (D1), LM7812 chips
Pole pipe (Q4),
MCU output pwm signal by after pull-up resistor (R4) by the 4th NPN triode (Q4) and the second NPN triode
(Q2), the 5th PNP triode (Q5) constitutes recommending output mode driving N-MOS pipes (Q3),
N-MOS pipe (Q3) motor work,
Second Schottky diode (D2) is parallel to motor setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710264842.1A CN106940060A (en) | 2017-04-21 | 2017-04-21 | A kind of oxygen monitoring device for bathroom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710264842.1A CN106940060A (en) | 2017-04-21 | 2017-04-21 | A kind of oxygen monitoring device for bathroom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106940060A true CN106940060A (en) | 2017-07-11 |
Family
ID=59463849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710264842.1A Pending CN106940060A (en) | 2017-04-21 | 2017-04-21 | A kind of oxygen monitoring device for bathroom |
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| Country | Link |
|---|---|
| CN (1) | CN106940060A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110124297A (en) * | 2018-06-27 | 2019-08-16 | 南京工业职业技术学院 | A kind of roller skate |
| CN112146284A (en) * | 2019-06-28 | 2020-12-29 | 青岛海尔智能技术研发有限公司 | Control method and device for water heater system and water heater system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110124297A (en) * | 2018-06-27 | 2019-08-16 | 南京工业职业技术学院 | A kind of roller skate |
| CN112146284A (en) * | 2019-06-28 | 2020-12-29 | 青岛海尔智能技术研发有限公司 | Control method and device for water heater system and water heater system |
| CN112146284B (en) * | 2019-06-28 | 2022-03-04 | 青岛海尔智能技术研发有限公司 | Control method and device for water heater system and water heater system |
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Application publication date: 20170711 |
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