CN206441323U - Domestic harmful gas monitoring system - Google Patents
Domestic harmful gas monitoring system Download PDFInfo
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- CN206441323U CN206441323U CN201720089238.5U CN201720089238U CN206441323U CN 206441323 U CN206441323 U CN 206441323U CN 201720089238 U CN201720089238 U CN 201720089238U CN 206441323 U CN206441323 U CN 206441323U
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- Prior art keywords
- master controller
- controller
- electric capacity
- alarm
- harmful gas
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- 230000000505 pernicious Effects 0.000 claims abstract description 15
- 239000000779 smoke Substances 0.000 claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims description 11
- 229910052904 quartz Inorganic materials 0.000 claims description 9
- 239000010453 quartz Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 5
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 235000015429 Mirabilis expansa Nutrition 0.000 claims description 3
- 240000006116 Mirabilis expansa Species 0.000 claims description 3
- 206010040560 Shock Diseases 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 235000013536 miso Nutrition 0.000 claims description 3
- 230000000051 modifying Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 37
- 238000010276 construction Methods 0.000 abstract description 3
- 239000002737 fuel gas Substances 0.000 abstract description 3
- 230000001809 detectable Effects 0.000 abstract description 2
- 230000000903 blocking Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003578 releasing Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model is related to a kind of based on the domestic harmful gas monitoring system being wirelessly transferred, it includes master controller, with reference to Temperature Humidity Sensor, Smoke Sensor, from controller, alarm and display, the concentration levels of the pernicious gas such as fuel gas in detectable room, it is exceeded can with alert, can real-time ensuring living environment safety；The data such as temperature, the humidity of living environment are also can detect simultaneously, its is simple in construction, reliability is high, cost is low, and practical function is good.
Description
Technical field
The utility model is related to a kind of house safety field, more particularly to a kind of based on the domestic harmful gas being wirelessly transferred
Monitoring system.
Background technology
Due to a variety of causes in existing home dwelling, can often occur carbon monoxide leakage, cause room because occurring fire
The interior increased situation of harmful gas concentration, and because some pernicious gases are invisible, therefore can not observe with the naked eye, so that
So that when occurring harmful gas concentration increase, personnel can not go and find out what's going on and take in time corresponding counter-measure, and mesh
The preceding still monitoring harmful gases system without effective family expenses.
Therefore, it is necessary to provide a kind of domestic harmful gas monitoring system that can be realized and intelligent monitoring is carried out to pernicious gas
System.
Utility model content
For above-mentioned problems of the prior art, the utility model is had there is provided a kind of based on the family expenses being wirelessly transferred
Evil gas monitoring system, it uses master controller as main control chip, with reference to Temperature Humidity Sensor, Smoke Sensor, from control
Device, alarm and display carry out automatic detection to the house detection range of setting, once there are the feelings of harmful concentration over-standard
Condition is alarmed immediately.
The technical scheme that the utility model is proposed with regard to above-mentioned technical problem is as follows：
There is provided a kind of domestic harmful gas monitoring system, it includes master controller；
Temperature Humidity Sensor, it is connected with the master controller, and including temperature-measuring element and moisture measurement element,
Exported for detecting temperature value and humidity value in preset range, and by the temperature value detected and humidity value to the main control
Device；
Smoke Sensor, it is connected with the master controller, and the Smoke Sensor is used to detect having in preset range
Evil gas concentration, and the harmful gas concentration signal detected is exported in the form of analog quantity or digital quantity to the main control
Device；
The master controller is judged the harmful gas concentration signal according to default threshold value, and is tied according to judgement
Fruit produces warning message and transmitted wirelessly；The warning message includes whether to need to carry out pernicious gas alarm；
From controller, it includes the wireless transceiver with the master controller wireless connection, and the wireless transceiver is used for
Receive the warning message that the master controller is sent；
Display, it connects described from controller and master controller, for displays temperature value and humidity value and alarm
Information；
And alarm, it connects described from controller, described to control the report according to the warning message from controller
Alert device is alarmed；The alarm includes alarm lamp and buzzer；
The Temperature Humidity Sensor includes being used to connect the first power end of power supply, the first earth terminal and use for ground connection
The signal line end of data signal transmission is carried out in connection signal wire；
The wireless transceiver includes six pins for being used to control SPI communication：CE、CSN、SCK、MOSI、MISO、IRQ、
For connecing the second source end of power supply and the second earth terminal for ground connection；
The master controller is STC89C52 single-chip microcomputers；The Temperature Humidity Sensor is DHT11 digital hygro sensors；
The Smoke Sensor is MQ-2 pernicious gas detection sensors；It is described from controller be AT89C52 single-chip microcomputers；The display
For 12864 liquid crystal displays；The wireless transceiver is NRF24L01 wireless transceivers；
Also include clock circuit, it includes quartz oscillator, the first electric capacity and the second electric capacity；First electric capacity
And second is in parallel with the quartz oscillator after electric capacity series connection, and described in the quartz oscillator two ends connect respectively
The pin XTAL1 and XTAL2 of single-chip computer AT89C52；First electric capacity and the second electric capacity are that value is 20pF-30pF
Ceramic condenser；
And reset circuit, it includes fixed capacitor, resistance and key switch；The key switch and the definite value
With the resistant series after capacitor is in parallel；One end of the key switch and the positive pole of fixed capacitor meet power supply VCC, institute
The negative pole of the other end and fixed capacitor of stating key switch meets the pin RST of the single-chip computer AT89C52, and simultaneously described
The other end ground connection of resistance.
It is preferred that, the wireless transceiver include enhanced Schock Burst TM mode controllers, frequency generator,
Power amplifier, crystal amplifier, demodulator and modulator.
The technical solution of the utility model has the following technical effect that：
The utility model can detect the concentration levels of the pernicious gas such as fuel gas in room, exceeded to send alarm signal
Breath, can real-time ensuring living environment safety；The data such as temperature, the humidity of living environment are also can detect simultaneously, and its is simple in construction,
Reliability is high, and cost is low, and practical function is good.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the utility model embodiment
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation of domestic harmful gas monitoring system in the utility model embodiment one；
Fig. 2 is the circuit diagram of clock circuit in the utility model embodiment one；
Fig. 3 is the circuit diagram of reset circuit in the utility model embodiment one；
Fig. 4 is the workflow diagram of master controller and each sensor in the utility model embodiment one；
Fig. 5 is from controller and the workflow diagram of alarm in the utility model embodiment one.
Embodiment
There is provided a kind of base for using the defect that the fire prevention system of machinery is present in existing home dwelling for the utility model
In the domestic harmful gas monitoring system being wirelessly transferred, it uses master controller as main control chip, with reference to Temperature Humidity Sensor,
Smoke Sensor, from controller, alarm and display automatic detection is carried out to the house detection range of setting, once occur
The exceeded situation of adverse concentration is alarmed immediately.
Embodiment one：
Fig. 1 shows that the utility model provides a kind of structural representation of domestic harmful gas monitoring system, and it includes
Master controller；The master controller is preferably STC89C52 single-chip microcomputers, and the STC89C52 Fundamentals of Mono-Chip Computers are relatively good to be understood, programming
Simply, stability is good, in addition, it also has cheap, low in energy consumption, easy to weld, strong security, the features such as easy to use,
STC-ISE instruments that program burn writing is provided with STC, programming is simple, easy to use, so using STC89C52 single-chip microcomputer conducts
The core of domestic safety warning system is best selection.
Temperature Humidity Sensor, it is connected with the master controller, and including temperature-measuring element and moisture measurement element,
Exported for detecting temperature value and humidity value in preset range, and by the temperature value detected and humidity value to the main control
Device；The Temperature Humidity Sensor is included for the first power end for connecing power supply, the first earth terminal for ground connection and for even
Connect the signal line end that signal wire carries out data signal transmission；The Temperature Humidity Sensor is preferably the digital temperature and humidity sensings of DHT11
Device, it has, and the humiture of measurement is accurate, and digital processing is convenient, single-signal-line communication, saves single-chip I/O mouth, communication mode letter
Singly understandable etc., signal transmission distance is extremely long, can show the size of temperature and humidity, the change of energy Real Time Observation humiture, work(
The very low advantage of consumption.
Infrared sensor of the human body, it is connected with the master controller, the active situation for sensing human body in preset range,
And it is translated into the electric signal related to human body, and by the electric signal output related to human body to the master controller；
Meanwhile, the infrared sensor of the human body is exporting high level when someone is movable to the master controller, by a delay
Detected again after cycle, low level is exported if unmanned activity to the master controller, is moved in circles；Further, it is described
Infrared sensor of the human body has the sensing blocking time setting unit for being used for setting sensing blocking time；The human-body infrared sensing
Device is not received with sending any signal in the sensing blocking time；The sensing blocking time is 1.5-3.5 seconds；It is preferred that
, the infrared sensor of the human body is that HC-SR50 infrared human body heat releasings put sensor, and it can detect the infrared ray in air,
And the result of detection is become corresponding electric signal.
Smoke Sensor, it is connected with the master controller, and the Smoke Sensor is used to detect having in preset range
Evil gas concentration, and the harmful gas concentration signal detected is exported in the form of analog quantity or digital quantity to the main control
Device；The Smoke Sensor is preferably MQ-2 pernicious gas detection sensors, and MQ-2 gas sensors are to various imflammable gas
It is a kind of inexpensive, the simple sensor of principle, and be adapted to a variety of answer and the sensitivity of other pernicious gases is all very high
With MQ-2 gas sensors have four pins, and two signal wires are the output of analog quantity and the output of digital quantity, simulation respectively
The output of amount can show the change in concentration of pernicious gas in air, and the output of digital quantity is fairly simple, there is a sliding resistance
The threshold value of harmful gas concentration can be adjusted, when beyond this threshold value, level can produce change, now just represent in air
Harmful gas concentration it is exceeded.
The master controller is judged the harmful gas concentration signal according to default threshold value, and is tied according to judgement
Fruit produces warning message and transmitted wirelessly；The warning message includes whether to need to carry out pernicious gas alarm；The alarm signal
Breath includes whether to need to carry out pernicious gas alarm；
From controller, it includes the wireless transceiver with the master controller wireless connection, and the wireless transceiver is used for
The warning message that the master controller is sent is received, it includes six pins for being used to control SPI communication：CE、CSN、SCK、
MOSI, MISO, IRQ, the second source end for connecing power supply and the second earth terminal for ground connection.Further, the nothing
Line transceiver includes：Enhanced Schock Burst TM mode controllers, frequency generator, power amplifier, crystal amplification
Device, demodulator and modulator；It is described from controller be preferably AT89C52 single-chip microcomputers；The wireless transceiver is preferably
NRF24L01 wireless transceivers, its can 2.4GHz to 2.5GHz band operation, in the wireless module of this band operation
Be it is legal, can without to locality application, meanwhile, NRF24L01 is the radio transmitting and receiving chip of a low-power consumption, NRF24L01
When in the transmission mode, transmission power is 6dBm, and current drain is only 9.0mA, and the current drain of receptive pattern is only 12.3mA,
Power is lower under power-down mode and standby mode, and current drain is smaller.
Display, it connects described from controller and master controller, for displays temperature value and humidity value and alarm
Information；The display is preferably 12864 liquid crystal displays, its be it is a can be with Display of Chinese characters, the low side liquid crystal that can be drawn,
Comparatively the cost of the liquid crystal than relatively low, can be used in the display module of various single-chip microcomputers.Four row Chinese characters can be shown, are often gone
Eight words, easy to use, beautiful interface.
And alarm, it connects described from controller, described to control the report according to the warning message from controller
Alert device is alarmed；The alarm includes alarm lamp and buzzer；
In addition, also including clock circuit in the system, as shown in Fig. 2 it includes quartz oscillator, the first electric capacity
And second electric capacity；After the first electric capacity C3 and the second electric capacity C4 series connection with the quartz oscillator Y1XTAL simultaneously
Connection, and the quartz oscillator Y1XTAL two ends meet the pin XTAL1 and XTAL2 of the single-chip computer AT89C52 (not respectively
Show), it is preferred that the first electric capacity C3 and the second electric capacity C4 can be 20pF-30pF ceramic condenser；
Also include reset circuit in the system, as shown in figure 3, it includes fixed capacitor C1, resistance R3 and button
Switch KEY-1；Connected after the key switch KEY-1 is in parallel with the fixed capacitor C1 with the resistance R3；The button
The positive pole for switching KEY-1 one end and fixed capacitor C1 meets power supply VCC, the other end of the key switch KEY-1 and
Fixed capacitor C1 negative pole connects the pin RST (not shown) of the single-chip computer AT89C52, and the resistance R3's simultaneously is another
End ground connection.
Fig. 4 shows the workflow of the master controller and each sensor：
The master controller is after module initialization is carried out, and the display is started working, and prepares display data, humiture
Sensor, Smoke Sensor, infrared sensor of the human body are started working, and the collection of various corresponding data signals is carried out respectively, and will
Each data-signal is sent to master controller, and the master controller is analyzed each data-signal, according to default threshold value to institute
State the electric signal related to human body and harmful gas concentration signal is judged such as whether pernicious gas is exceeded, and according to sentencing
Disconnected result produces warning message and transmitted wirelessly.
Further, Fig. 5 shows the workflow from controller and alarm：
It is described to carry out module initialization first from controller, if wireless transceiver receives the alarm signal of master controller transmission
Breath, then control the alarm to carry out sound and light alarm from controller, while the warning message is shown on display, if wireless receive
Hair device is not received by the warning message of master controller transmission, then whole workflow terminates.
In summary, the technical solution of the utility model can detect the concentration feelings of the pernicious gas such as fuel gas in room
Condition, it is exceeded can with alert, can real-time ensuring living environment safety；While the temperature of also detectable living environment,
The data such as humidity, its is simple in construction, and reliability is high, and cost is low, and practical function is good.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (2)
1. a kind of domestic harmful gas monitoring system, it includes master controller, it is characterised in that also include：
Temperature Humidity Sensor, it is connected with the master controller, and including temperature-measuring element and moisture measurement element, is used for
The temperature value and humidity value in preset range are detected, and the temperature value detected and humidity value are exported to the master controller；
Smoke Sensor, it is connected with the master controller, and the Smoke Sensor is used to detect harmful gas in preset range
Bulk concentration, and the harmful gas concentration signal detected is exported in the form of analog quantity or digital quantity to the master controller；
The master controller is judged the harmful gas concentration signal according to default threshold value, and is produced according to judged result
Raw warning message is simultaneously transmitted wirelessly；The warning message includes whether to need to carry out pernicious gas alarm；
From controller, it includes the wireless transceiver with the master controller wireless connection, and the wireless transceiver is used to receive
The warning message that the master controller is sent；
Display, it connects described from controller and master controller, for displays temperature value and humidity value and warning message；
And alarm, it connects described from controller, described to control the alarm according to the warning message from controller
Alarmed；The alarm includes alarm lamp and buzzer；
The Temperature Humidity Sensor is included for the first power end for connecing power supply, the first earth terminal for ground connection and for even
Connect the signal line end that signal wire carries out data signal transmission；
The wireless transceiver includes six pins for being used to control SPI communication：CE, CSN, SCK, MOSI, MISO, IRQ, it is used for
Connect the second source end of power supply and the second earth terminal for ground connection；
The master controller is STC89C52 single-chip microcomputers；The Temperature Humidity Sensor is DHT11 digital hygro sensors；It is described
Smoke Sensor is MQ-2 pernicious gas detection sensors；It is described from controller be AT89C52 single-chip microcomputers；The display is
12864 liquid crystal displays；The wireless transceiver is NRF24L01 wireless transceivers；
Also include clock circuit, it includes quartz oscillator, the first electric capacity and the second electric capacity；First electric capacity and
It is in parallel with the quartz oscillator after the series connection of second electric capacity, and the quartz oscillator two ends connect the monolithic respectively
Machine AT89C52 pin XTAL1 and XTAL2；First electric capacity and the second electric capacity are the ceramics that value is 20pF-30pF
Electric capacity；
And reset circuit, it includes fixed capacitor, resistance and key switch；The key switch and the definite value electric capacity
With the resistant series after device is in parallel；One end of the key switch and the positive pole of fixed capacitor meet power supply VCC, described to press
The other end of key switch and the negative pole of fixed capacitor connect the pin RST of the single-chip computer AT89C52, and the resistance simultaneously
The other end ground connection.
2. the system as claimed in claim 1, it is characterised in that the wireless transceiver includes enhanced Schock Burst
TM mode controllers, frequency generator, power amplifier, crystal amplifier, demodulator and modulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720089238.5U CN206441323U (en) | 2017-01-20 | 2017-01-20 | Domestic harmful gas monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720089238.5U CN206441323U (en) | 2017-01-20 | 2017-01-20 | Domestic harmful gas monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206441323U true CN206441323U (en) | 2017-08-25 |
Family
ID=59635547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720089238.5U Expired - Fee Related CN206441323U (en) | 2017-01-20 | 2017-01-20 | Domestic harmful gas monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206441323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151260A (en) * | 2018-01-03 | 2018-06-12 | 西安鹏光环保科技有限责任公司 | A kind of indoor harmful gas monitors system |
-
2017
- 2017-01-20 CN CN201720089238.5U patent/CN206441323U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151260A (en) * | 2018-01-03 | 2018-06-12 | 西安鹏光环保科技有限责任公司 | A kind of indoor harmful gas monitors system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170825 Termination date: 20180120 |