CN107561226A - A kind of more room content of formaldehyde monitor and alarm systems - Google Patents
A kind of more room content of formaldehyde monitor and alarm systems Download PDFInfo
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- CN107561226A CN107561226A CN201710958926.5A CN201710958926A CN107561226A CN 107561226 A CN107561226 A CN 107561226A CN 201710958926 A CN201710958926 A CN 201710958926A CN 107561226 A CN107561226 A CN 107561226A
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Abstract
The invention provides a kind of more room content of formaldehyde monitor and alarm systems, including a main frame and multiple handsets, the main frame is placed on the position of the resident families such as bedroom or parlor often activity, and the handset scattered resettlement is in remaining each room.The present invention measures the content of formaldehyde of corresponding room area using multiple handsets respectively, then the content of formaldehyde information collected is sent to main frame by wireless communication module in real time, main frame analyzes the formaldehyde content values in each room by array data in time, carry out real-time display and alert detecting, and wirelessly send the data to mobile terminal, each room content of formaldehyde situation can be grasped in real time by facilitating people and need not getting in, its circuit structure is simple, system power dissipation is low, stable performance, accuracy of detection is high, it is with good expansibility, monitored available for architecture indoor content of formaldehyde, it can also be used for power plant, chemical industry, the construction environments such as underground piping monitor, prevent formaldehyde poisoning accident from occurring.
Description
Technical field
The present invention relates to internet of things equipment technical field, more particularly to a kind of more room content of formaldehyde monitor and alarm systems.
Background technology
Formaldehyde is a kind of colourless, by specific stimulation smell gas, and its main harm shows as the thorn to skin and mucous membrane
Swash effect.When formaldehyde reaches finite concentration indoors, people just has sense of discomfort, when the concentration of formaldehyde more than 0.08mg/m3 can
Furious, eye is caused to be itched, throat discomfort or the symptom such as pain, hoarseness, sneeze, uncomfortable in chest, asthma, dermatitis.And in room air
Formaldehyde be mainly derived from finishing material and furniture, therefore newly-decorated room content of formaldehyde is higher, and this is also numerous diseases
One of main inducing.
The major way of existing detection indoor formaldehyde concentration is to use formaldehyde tacheometer at present, and people need to get in person
Measure, it is very inconvenient, and the formaldehyde in some materials and furniture, it can dissipate completely after certain time intervals
, and the more preferable of product need not be carried out or removed, therefore using formaldehyde tacheometer people's PARA FORMALDEHYDE PRILLS(91,95) content will certainly be allowed to carry out
Misread, and then cause the waste of a large amount of finishing materials.
It is therefore desirable to one kind in fitment process, can monitor the device of indoor formaldehyde content for a long time to adapt to reality
Border demand.
The content of the invention
(1) technical problem solved
In order to solve the above problems, the invention provides a kind of more room content of formaldehyde monitor and alarm systems, use are multiple
Handset measures the content of formaldehyde of corresponding room area respectively, and the content of formaldehyde information collected then is passed through into radio communication in real time
Module sends main frame to, and main frame analyzes the formaldehyde content values in each room by array data in time, carries out real-time display and alarm
Monitoring, and wirelessly send the data to mobile terminal.
(2) technical scheme
A kind of more room content of formaldehyde monitor and alarm systems, including a main frame and multiple handsets, the main frame are placed on
The position of the resident family such as bedroom or parlor often activity, the handset scattered resettlement is in remaining each room；The main frame includes main list
Piece machine control module, key-press module, main formaldehyde sensor module, alarm module, display module and main wireless communication module, it is described
Handset includes sub- single chip control module, sub- formaldehyde sensor module and sub- wireless communication module, the handset and the main frame
Between row data communication entered by the sub- wireless communication module and the main wireless communication module, the main frame passes through the master
Wireless communication module enters row data communication with mobile terminal.
Further, the host scm control module and the sub- single chip control module have identical circuit knot
Structure, including singlechip chip, jtag interface, the first crystal oscillator, the second crystal oscillator, the first button, first resistor and the first~the 4th electricity
Hold, wherein the singlechip chip is 64pin MSP430F149.
Further, the key-press module includes the second~the 5th button and the second~the 5th resistance.
Further, the main formaldehyde sensor module and the sub- formaldehyde sensor module have identical circuit knot
Structure, including formaldehyde sensor, the 5th electric capacity, the 6th and the 7th resistance, wherein the formaldehyde sensor is AQM201.
Further, the alarm module includes buzzer, triode and the 8th resistance.
Further, the display module includes liquid crystal display and rheostat, wherein the liquid crystal display is 20pin
LCD12864HZ。
Further, the main wireless communication module and the sub- wireless communication module have identical circuit structure, adopt
With 8pin NRF24L01.
(3) beneficial effect
The invention provides a kind of more room content of formaldehyde monitor and alarm systems, measure corresponding room respectively using multiple handsets
Between region content of formaldehyde, then the content of formaldehyde information collected is sent to main frame by wireless communication module in real time, it is main
Machine analyzes the formaldehyde content values in each room by array data in time, carries out real-time display and alert detecting, and pass through wireless parties
Formula sends the data to mobile terminal, and each room content of formaldehyde situation can be grasped in real time by facilitating people and need not getting in,
Its circuit structure is simple, and system power dissipation is low, stable performance, and accuracy of detection is high, is with good expansibility, available for building room
Interior content of formaldehyde monitoring, it can also be used to which the construction environment such as power plant, chemical industry, underground piping monitors, and prevents formaldehyde poisoning accident from occurring.
Brief description of the drawings
Fig. 1 is a kind of system architecture diagram of more room content of formaldehyde monitor and alarm systems involved in the present invention.
Fig. 2 is a kind of single chip control module circuit of more room content of formaldehyde monitor and alarm systems involved in the present invention
Schematic diagram.
Fig. 3 is a kind of key-press module circuit theory of more room content of formaldehyde monitor and alarm systems involved in the present invention
Figure.
Fig. 4 is a kind of formaldehyde sensor modular circuit of more room content of formaldehyde monitor and alarm systems involved in the present invention
Schematic diagram.
Fig. 5 is a kind of alarm module circuitry principle of more room content of formaldehyde monitor and alarm systems involved in the present invention
Figure.
Fig. 6 is a kind of display module circuit theory of more room content of formaldehyde monitor and alarm systems involved in the present invention
Figure.
Fig. 7 is that a kind of wireless communication module circuit of more room content of formaldehyde monitor and alarm systems involved in the present invention is former
Reason figure.
Embodiment
Embodiment involved in the present invention is described in further details below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of more room content of formaldehyde monitor and alarm systems, including a main frame and multiple handsets, main frame
The position of the resident families such as bedroom or parlor often activity is placed on, handset scattered resettlement is in remaining each room；Main frame includes main monolithic
Machine control module, key-press module, main formaldehyde sensor module, alarm module, display module and main wireless communication module, handset bag
Enclosed tool single chip control module, sub- formaldehyde sensor module and sub- wireless communication module, by sub wireless between handset and main frame
Communication module and main wireless communication module enter row data communication, and main frame carries out data by main wireless communication module and mobile terminal
Communication.
Host scm control module and sub- single chip control module have identical circuit structure, as shown in Fig. 2 including single
Piece movement piece U1, jtag interface U2, crystal oscillator X1, crystal oscillator X2, button S1, resistance R1 and electric capacity C1~C4, wherein singlechip chip
U1 is 64pin MSP430F149.MSP430F149 single-chip microcomputers U1 minimum system includes clock circuit, reset circuit and JTAG
Debug circuit.Single-chip microcomputer U1 pin VeREF+ is internal A/D switching reference voltages, meets 3.3V.In order to ensure that reference voltage is steady
Fixed, the pin and single-chip microcomputer U1 power pins DVCC add filter capacitor C1 and C3 over the ground, are done with filtering environment electromagnetics
Disturb.Because single-chip microcomputer U1 is low level reset, reset circuit is formed by resistance R1 and electric capacity C4, electric capacity C4 fills after system electrification
Electricity, equivalent to short circuit, RST pin are low level, and RST pin are changed into high level after charging, electric auto-reset function in completion.Press
Key S1 is that system adds hand-reset function.Jtag circuit is that system program debugs download interface, connects MSP-FET430UIF
Emulator can be achieved program debugging and download work.
As shown in figure 3, key-press module includes button S2~S5 and resistance R2~R5.Button S2 is function key, for selecting
The functions such as sampling time, display pattern, triggering alarm threshold value, button S3 and S4 are respectively to increase and reduce key, are adjusted for parameter
Whole, button S5 is easy to later stage functions expanding to develop as standby button.There is external interrupt function by single-chip microcomputer U1 is bonded to
P1 mouths, setting adjustment can be carried out to relevant parameter into keys interrupt service at any time.
Main formaldehyde sensor module and sub- formaldehyde sensor module have identical circuit structure, as shown in figure 4, including first
Aldehyde sensor U3, electric capacity C5, resistance R6 and R7, wherein formaldehyde sensor U3 are AQM201.AQM201 exports analog quantity, need to be through A/
Digital quantity is obtained after D conversions can just give single-chip microcomputer processing, and 12 A/D converters of high accuracy are carried inside single-chip microcomputer U1, letter
Circuit structure is changed, therefore has been handled after directly converting a signal into digital quantity with A/D converter inside single-chip microcomputer U1.Due to
Formaldehyde sensor U3 output analog quantity voltage scopes are 0~5V, and single-chip microcomputer U1 A/D sampling full range voltages are 3.3V, because
The analog quantity of this sensor output also needs to carry out voltage range matching conversion.Resistance R6 and R7 form bleeder circuit, resistance difference
For 1.7K Ω and 3.3K Ω, the voltage at resistance R7 both ends exports as analog voltage, now export analog voltage range be 0~
3.3V, matched with single-chip microcomputer U1 A/D conversion ranges, the output signal is connected to single-chip microcomputer U1 A/D conversion mouth P6.0 pin.
As shown in figure 5, alarm module includes buzzer B1, triode Q1 and resistance R8.From buzzer B1 as alarm
Generating means, PNP triode Q1 is as driving, it is contemplated that the driving force of I/O mouths, single-chip microcomputer U1 will be with sink current form controls
Buzzer B1 sounding.I/O mouths are controlled to be provided by single-chip microcomputer U1 P5.5 pin, when I/O mouths are low level, buzzer B1 sounding,
For high level when, buzzer B1 stop sounding.
As shown in fig. 6, display module includes liquid crystal display U5 and rheostat Rp1, wherein liquid crystal display U5 is 20pin
LCD12864HZ.LCD12864HZ carries Hanzi font library, can Display of Chinese characters, character and figure, it is easy to use.Liquid crystal display U5
Using 3.3V power voltage supplies, it is easy to the I/O mouth electrical level match with single-chip microcomputer U1.To simplify circuit, the spending of I/O mouths, liquid crystal are saved
Display module U5 is communicated with single-chip microcomputer U1 interface using serial line interface, and the pin of SCLK, SID and CS tri- is respectively connected to monolithic
Machine U1 tri- pins of P3.5, P3.6 and P3.7.
Main wireless communication module and sub- wireless communication module have identical circuit structure, as shown in fig. 7, using 8pin
NRF24L01.Wherein octal is interrupt requests output end, is connected to single-chip microcomputer U1 external interrupt P1.4 mouths.Each sub- radio communication
Module after receiving the data, is first saved the data in its memory, then sends interrupt requests to host scm, so as to
Data of the timely reading and saving of host scm in its memory, the data cover for preventing the data from newly being received.In main frame
The IRQ pin of main wireless communication module be connected to host scm external interrupt interface, so that main frame timely responds to what each handset was sent
Data.
Each handset will define respective address code, represent the corresponding room where each handset.Handset is sending the same of data
Shi Liantong itself address code is sent in the lump, and after main frame receives data, the data letter of each handset is distinguished by address code
Breath, so as to obtain the content of formaldehyde concentration of corresponding room area.Main frame collects current in liquid crystal display screen display after information
The concentration of formaldehyde percentage of regional, and content of formaldehyde time history plot, are easy to customer analysis concentration of formaldehyde
Distribution and trend.Main frame analyzes the formaldehyde content values in each room by array data in time, is not in for a long time for content of formaldehyde
The automatic notice handset adjustment sampling time is carried out emphasis monitoring by the room area of reduction trend, main frame.When content of formaldehyde connects
When exceeding higher limit always within continuous more days, main frame sends alarm, to prompt user's formaldehyde.
The invention provides a kind of more room content of formaldehyde monitor and alarm systems, measure corresponding room respectively using multiple handsets
Between region content of formaldehyde, then the content of formaldehyde information collected is sent to main frame by wireless communication module in real time, it is main
Machine analyzes the formaldehyde content values in each room by array data in time, carries out real-time display and alert detecting, and pass through wireless parties
Formula sends the data to mobile terminal, and each room content of formaldehyde situation can be grasped in real time by facilitating people and need not getting in,
Its circuit structure is simple, and system power dissipation is low, stable performance, and accuracy of detection is high, is with good expansibility, available for building room
Interior content of formaldehyde monitoring, it can also be used to which the construction environment such as power plant, chemical industry, underground piping monitors, and prevents formaldehyde poisoning accident from occurring.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the structure of the present invention
Think and scope is defined.On the premise of design concept of the present invention is not departed from, technology of the ordinary people in the field to the present invention
The all variations and modifications that scheme is made, all should drop into protection scope of the present invention, the claimed technology contents of the present invention,
All record in detail in the claims.
Claims (7)
- A kind of 1. more room content of formaldehyde monitor and alarm systems, it is characterised in that：Including a main frame and multiple handsets, the master Machine is placed on the position of the resident families such as bedroom or parlor often activity, and the handset scattered resettlement is in remaining each room；The main frame Including host scm control module, key-press module, main formaldehyde sensor module, alarm module, display module and main radio communication Module, the handset include sub- single chip control module, sub- formaldehyde sensor module and sub- wireless communication module, the handset and Row data communication is entered by the sub- wireless communication module and the main wireless communication module between the main frame, the main frame leads to Cross the main wireless communication module and enter row data communication with mobile terminal.
- A kind of 2. more room content of formaldehyde monitor and alarm systems according to claim 1, it is characterised in that：The main monolithic Machine control module and the sub- single chip control module have identical circuit structure, including singlechip chip, jtag interface, One crystal oscillator, the second crystal oscillator, the first button, first resistor and the first~the 4th electric capacity, wherein the singlechip chip is 64pin MSP430F149。
- A kind of 3. more room content of formaldehyde monitor and alarm systems according to claim 1, it is characterised in that：The button mould Block includes the second~the 5th button and the second~the 5th resistance.
- A kind of 4. more room content of formaldehyde monitor and alarm systems according to claim 1, it is characterised in that：The main formaldehyde Sensor assembly and the sub- formaldehyde sensor module have identical circuit structure, including formaldehyde sensor, the 5th electric capacity, Six and the 7th resistance, wherein the formaldehyde sensor is AQM201.
- A kind of 5. more room content of formaldehyde monitor and alarm systems according to claim 1, it is characterised in that：The alarm mould Block includes buzzer, triode and the 8th resistance.
- A kind of 6. more room content of formaldehyde monitor and alarm systems according to claim 1, it is characterised in that：The display mould Block includes liquid crystal display and rheostat, wherein the liquid crystal display is 20pin LCD12864HZ.
- A kind of 7. more room content of formaldehyde monitor and alarm systems according to claim 1, it is characterised in that：The master is wireless Communication module and the sub- wireless communication module have identical circuit structure, using 8pin NRF24L01.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710958926.5A CN107561226A (en) | 2017-10-16 | 2017-10-16 | A kind of more room content of formaldehyde monitor and alarm systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710958926.5A CN107561226A (en) | 2017-10-16 | 2017-10-16 | A kind of more room content of formaldehyde monitor and alarm systems |
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| Publication Number | Publication Date |
|---|---|
| CN107561226A true CN107561226A (en) | 2018-01-09 |
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ID=60986067
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710958926.5A Withdrawn CN107561226A (en) | 2017-10-16 | 2017-10-16 | A kind of more room content of formaldehyde monitor and alarm systems |
Country Status (1)
| Country | Link |
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| CN (1) | CN107561226A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111346470A (en) * | 2018-12-20 | 2020-06-30 | 江苏国森时创建设有限公司 | Formaldehyde removing method for house decoration |
| CN111475128A (en) * | 2020-04-03 | 2020-07-31 | 安徽讯呼信息科技有限公司 | Interactive intelligent screen based on artificial intelligence and big data and use method |
-
2017
- 2017-10-16 CN CN201710958926.5A patent/CN107561226A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111346470A (en) * | 2018-12-20 | 2020-06-30 | 江苏国森时创建设有限公司 | Formaldehyde removing method for house decoration |
| CN111475128A (en) * | 2020-04-03 | 2020-07-31 | 安徽讯呼信息科技有限公司 | Interactive intelligent screen based on artificial intelligence and big data and use method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180109 |
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| WW01 | Invention patent application withdrawn after publication |