CN104198347A - Online PM2.5 content detection device suitable for air purifier - Google Patents
Online PM2.5 content detection device suitable for air purifier Download PDFInfo
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- CN104198347A CN104198347A CN201410442735.XA CN201410442735A CN104198347A CN 104198347 A CN104198347 A CN 104198347A CN 201410442735 A CN201410442735 A CN 201410442735A CN 104198347 A CN104198347 A CN 104198347A
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Abstract
The invention discloses an online PM2.5 content detection device suitable for an air purifier. The device comprises a sensor for detecting PM2.5 in an environment, an A/D sampling component connected with the sensor, a MCU signal processing system with signal processing and storage functions, and a display for displaying information about the content of PM2.5, wherein the MCU signal processing system is in signal connection with the A/D sampling component; the display is connected with the MCU signal processing system through an RS485 communication protocol. According to the structural design, the device has the beneficial effects of being arranged at any position at which the device needs to be arranged in an air purifier body, being capable of detecting the concentration content of PM2.5 in clean air treated by the air purifier on line in real time, being high in detection precision and stability, and allowing people to check accurate data after the detected data is transmitted to the display equipment to be displayed in real time.
Description
Technical field
The present invention relates to gas detection equipment technical field, more particularly, particularly a kind of pick-up unit that is applicable to the online detection pm2.5 content of air purifier.
Background technology
Environmental pollution is at present serious, and haze weather is added, and air pollution is serious.In air, flue gas, micronic dust content overproof will endanger healthy.
In the prior art, in order to purify general employing air purifier to air, air purifier is used for purifying the air of a room quality to reaching desirable air ambient.Yet the air purifier providing on market is of a great variety, great majority are only that outward appearance changes, and all do not show the function of concrete pm2.5 content, for its practical effect of consumer just not from cicada.
Summary of the invention
In view of this, the invention provides a kind of pick-up unit that is applicable to the online detection pm2.5 content of air purifier, to address the above problem.
For achieving the above object, the invention provides following technical scheme:
A pick-up unit that is applicable to the online detection pm2.5 content of air purifier, comprising:
Sensor for detection of PM2.5 particle in environment;
The A/D sampling component being connected with described sensor;
The MCU signal processing system with signal processing and memory function, described MCU signal processing system is connected with described A/D sampling component signal;
For showing the display of PM2.5 particle content information, described display is connected by RS485 communication protocol with described MCU signal processing system.
Preferably, described A/D sampling component is 12 ADC sampling components, and described 12 ADC sampling components are connected with A/D analog to digital converter.
Preferably, described A/D sampling component also includes two closed-loop amplifying circuits, and described ADC sampling component is connected with described A/D analog to digital converter by described pair of closed-loop amplifying circuit.
The invention provides a kind of pick-up unit that is applicable to the online detection pm2.5 content of air purifier, comprising: for detection of the sensor of PM2.5 particle in environment; The A/D sampling component being connected with sensor; The MCU signal processing system with signal processing and memory function, MCU signal processing system is connected with A/D sampling component signal; For showing the display of PM2.5 particle content information, display is connected by RS485 communication protocol with MCU signal processing system.
The present invention includes sensor, A/D sampling component, MCU signal processing system, MCU signal processing system comprises control chip, and control chip has logical operation function, for the signal of sensor collection is carried out to analyzing and processing, then by display, shows.
In said structure design, sensor, A/D sampling component, MCU signal processing system is integrated is arranged on a circuit board, then a crust of the device is provided, pneumatic pump is set in crust of the device, be used for accelerating circulation of air, air intake opening is set on crust of the device, screen pack is set on air intake opening for the larger particle of filtering particle.By sensor, gather PM2.5 content formation voltage signal, voltage signal is sampled through A/D sampling component.The software that the present invention adopts is Kalman filtering algorithm, further increased the precision and stability of sensor measurement, signal frequency conversion and A/D analog to digital converter with 4-20mA signal isolating converter convert voltage signal to digital signal, and digital signal input MCU disposal system stores.MCU disposal system comprises control chip, by RS485 communication protocol by digital data transmission to the display screen of air purifier, guarantee the accuracy of data transmission.
Beneficial effect of the present invention is: the pick-up unit that is applicable to the online detection pm2.5 content of air purifier can be loaded on the optional position that needs installation in air purifier body, the online concentration content that detects in real time pm2.5 in air purifier processing pure air, accuracy of detection is high, stability is strong, and the data transmission detecting is shown in real time to display device, can view accurate data.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of pick-up unit that is applicable to the online detection pm2.5 content of air purifier in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, Fig. 1 is the structural representation of pick-up unit that is applicable to the online detection pm2.5 content of air purifier in an embodiment of the present invention.
The invention provides a kind of pick-up unit that is applicable to the online detection pm2.5 content of air purifier, comprising: for detection of the sensor 1 of PM2.5 particle in environment; The A/D sampling component being connected with sensor 1; The MCU signal processing system 4 with signal processing and memory function, MCU signal processing system 4 is connected with A/D sampling component signal; For showing the display 5 of PM2.5 particle content information, display 5 is connected by RS485 communication protocol with MCU signal processing system 4.
The present invention includes sensor 1, A/D sampling component, MCU signal processing system 4, MCU signal processing system 4 comprises control chip, control chip has logical operation function, carries out analyzing and processing then by display 5, show for the signal that sensor 1 is gathered.
In said structure design, sensor 1, A/D sampling component, MCU signal processing system 4 is integrated is arranged on a circuit board, then a crust of the device is provided, pneumatic pump is set in crust of the device, be used for accelerating circulation of air, air intake opening is set on crust of the device, screen pack is set on air intake opening for the larger particle of filtering particle.By sensor 1, gather PM2.5 content formation voltage signal, voltage signal is sampled through A/D sampling component.The software that the present invention adopts is Kalman filtering algorithm, further increased the precision and stability that sensor 1 is measured, signal frequency conversion and A/D analog to digital converter 3 with 4-20mA signal isolating converter convert voltage signal to digital signal, and digital signal input MCU disposal system stores.MCU disposal system comprises control chip, by RS485 communication protocol by digital data transmission to the display screen of air purifier, guarantee the accuracy of data transmission.
Beneficial effect of the present invention is: the pick-up unit that is applicable to the online detection pm2.5 content of air purifier can be loaded on the optional position that needs installation in air purifier body, the online concentration content that detects in real time pm2.5 in air purifier processing pure air, accuracy of detection is high, stability is strong, and the data transmission detecting is shown in real time to display device, can view accurate data.
Particularly, A/D sampling component is that 2,12 ADC sampling components 2 of 12 ADC sampling components are connected with A/D analog to digital converter 3.
In order to improve the stability of signal transmission, A/D sampling component also includes two closed-loop amplifying circuits 6, and ADC sampling component 2 is connected with A/D analog to digital converter 3 by two closed-loop amplifying circuits 6.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (3)
1. a pick-up unit that is applicable to the online detection pm2.5 content of air purifier, is characterized in that, comprising:
Sensor (1) for detection of PM2.5 particle in environment;
The A/D sampling component being connected with described sensor;
The MCU signal processing system (4) with signal processing and memory function, described MCU signal processing system is connected with described A/D sampling component signal;
For showing the display (5) of PM2.5 particle content information, described display is connected by RS485 communication protocol with described MCU signal processing system.
2. the pick-up unit that is applicable to the online detection pm2.5 content of air purifier according to claim 1, is characterized in that,
Described A/D sampling component is 12 ADC sampling components (2), and described 12 ADC sampling components are connected with A/D analog to digital converter (3).
3. the pick-up unit that is applicable to the online detection pm2.5 content of air purifier according to claim 2, is characterized in that,
Described A/D sampling component also includes two closed-loop amplifying circuits (6), and described ADC sampling component is connected with described A/D analog to digital converter by described pair of closed-loop amplifying circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410442735.XA CN104198347A (en) | 2014-09-01 | 2014-09-01 | Online PM2.5 content detection device suitable for air purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410442735.XA CN104198347A (en) | 2014-09-01 | 2014-09-01 | Online PM2.5 content detection device suitable for air purifier |
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| Publication Number | Publication Date |
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| CN104198347A true CN104198347A (en) | 2014-12-10 |
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| CN201410442735.XA Pending CN104198347A (en) | 2014-09-01 | 2014-09-01 | Online PM2.5 content detection device suitable for air purifier |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603912A (en) * | 2009-07-13 | 2009-12-16 | 常熟市福虞矿山器材有限公司 | Direct-reading dust concentration detector |
| CN203083905U (en) * | 2013-03-04 | 2013-07-24 | 南京铁道职业技术学院 | Portable PM (particulate matter)-2.5 dust particle detection instrument |
| CN203337508U (en) * | 2013-03-06 | 2013-12-11 | 合肥杰通环境技术有限公司 | Portable environment detector |
-
2014
- 2014-09-01 CN CN201410442735.XA patent/CN104198347A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603912A (en) * | 2009-07-13 | 2009-12-16 | 常熟市福虞矿山器材有限公司 | Direct-reading dust concentration detector |
| CN203083905U (en) * | 2013-03-04 | 2013-07-24 | 南京铁道职业技术学院 | Portable PM (particulate matter)-2.5 dust particle detection instrument |
| CN203337508U (en) * | 2013-03-06 | 2013-12-11 | 合肥杰通环境技术有限公司 | Portable environment detector |
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Application publication date: 20141210 |
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