CN204154607U - A kind of mobile phone control type dust sensor monitoring system - Google Patents
A kind of mobile phone control type dust sensor monitoring system Download PDFInfo
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- CN204154607U CN204154607U CN201420483192.1U CN201420483192U CN204154607U CN 204154607 U CN204154607 U CN 204154607U CN 201420483192 U CN201420483192 U CN 201420483192U CN 204154607 U CN204154607 U CN 204154607U
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Abstract
The utility model relates to a kind of mobile phone control type dust sensor monitoring system, it comprises the cell-phone customer terminal and dust instrument body that are connected by bluetooth module, and dust instrument body comprises single-chip microcomputer, sampling pump, transfer valve and throttling valve, scattered light test chamber, acceptance division and controller; Single-chip microcomputer is electrically connected with sampling pump by constant-current controller, and sampling delivery side of pump is connected with the entrance of transfer valve, and transfer valve is connected with the entrance of sampling pump with filtrator through threeway, scattered light test chamber successively with the outlet of throttling valve; The side of scattered light test chamber is provided with light source, and acceptance division is arranged on opposite side; Acceptance division is through amplifying and analog to digital conversion circuit connection single-chip microcomputer, and single-chip microcomputer connects amplification and analog to digital conversion circuit through digital regulation resistance again; Controller connects throttling valve, transfer valve and stepper motor respectively by three drivers, and stepper motor is linked in sequence topworks and standard scatter plate.The utility model can carry out zero point correction and Measurement and calibration, effectively can eliminate humidity interference, temperature impact, zero point drift and systematic error, improve stability and the reliability of dust sensor.
Description
Technical field
The utility model relates to a kind of dust sensor monitoring system, is specifically related to one and is connected with mobile phone wireless by bluetooth, and replaces panel to carry out operating the high stable, the highly reliable mobile phone control type dust sensor monitoring system that control by mobile phone.
Background technology
At present, quick dust (particle) determining instrument that home and abroad is all, such as environment friendly system widely used cone oscillating balance particle analyzer, also have public place, labor operation scene and the widely used various light scattering formula of indoor and outdoor environmental monitoring to survey the β rays method dust measuring instrument of (powder) dirt instrument and various model, do not possess mobile phone controlling functions.Meanwhile, above-mentioned various dust monitoring instrument can not continuous on-line operation for a long time under outdoor rugged surroundings, and there is the technical matters of the instrument instability caused by humidity interference, temperature drift, time drift.
Summary of the invention
For the problems referred to above, the purpose of this utility model is a kind of mobile phone control type dust sensor monitoring system effectively can eliminating humidity interference, temperature impact, zero point drift and systematic error.
For achieving the above object, the utility model takes following technical scheme: a kind of mobile phone control type dust sensor monitoring system, it is characterized in that, this monitoring system comprises cell-phone customer terminal and dust instrument body, and wherein dust instrument body comprises single-chip microcomputer, sampling pump, transfer valve and throttling valve, scattered light test chamber, acceptance division and controller; Described cell-phone customer terminal carries out information interaction by the single-chip microcomputer of bluetooth communication module and described dust instrument body; Described single-chip microcomputer is electrically connected with described sampling pump by a constant-current controller; Described transfer valve has an entrance and two outlets, its entrance connects described sampling delivery side of pump, wherein an outlet connects the entrance of described scattered light test chamber by threeway, and the outlet of described scattered light test chamber connects the entrance of described sampling pump through a filtrator, to form zero gas loop, school; Another outlet of described transfer valve is then communicated with air, and becomes exhausr port after controlled switching; The entrance of described throttling valve is communicated with air using as sample gas entrance, its outlet connects the entrance of described scattered light test chamber by described threeway, sample gas enters air by the exhausr port of described transfer valve after described scattered light test chamber, filtrator, sampling pump, to form sampling gas circuit; The side of described scattered light test chamber is provided with a light source, and described acceptance division is then arranged on the opposite side of the described scattered light test chamber relative with described light source; The scattered light signal that described scattered light test chamber sends is converted to electric signal by the photoelectric sensor on it by described acceptance division, this electric signal amplifies through one and sends described single-chip microcomputer to after analog to digital conversion circuit process, and described single-chip microcomputer connects described amplification and analog to digital conversion circuit by a digital regulation resistance again; The output terminal of described controller is divided into three tunnels, the first via is electrically connected with described throttling valve by the first driver, second tunnel is electrically connected with described transfer valve by the second driver, 3rd tunnel then connects a stepper motor by the 3rd driver, the output terminal of described stepper motor is linked in sequence a topworks and a standard scatter plate, and described scattered light test chamber is sent into/withdrawn to described standard scatter plate by described topworks.
In a preferred embodiment, described single-chip microcomputer also connects a humidity sensor.
In a preferred embodiment, described acceptance division is also provided with the radiator valve be made up of as microheater temperature sensor and Chip-R.
In a preferred embodiment, described single-chip microcomputer also presets the communication interface with pc making long-range PC and described dust instrument body realize both-way communication.
In a preferred embodiment, described cell-phone customer terminal is connected with two the above dust instrument bodies by described bluetooth communication module simultaneously.
The utility model is owing to taking above technical scheme, it has the following advantages: 1, the single-chip microcomputer in dust instrument body is connected by bluetooth communication module with cell-phone customer terminal by the utility model, and controlled in wireless and the data display of multiple stage dust instrument body can be realized by 1 mobile phone, thus be built into a kind of on dust instrument body the dust sensor without display window and operating key, be applicable to access on-line monitoring system to use as sensor, facilitate local maintenance simultaneously.2, single-chip microcomputer of the present utility model also connects a humidity sensor, the on-the-spot humidity of humidity sensor Real-Time Monitoring, when single-chip microcomputer receives the humidity revision directive of cell-phone customer terminal, single-chip microcomputer is revised measured value according to preset humidity effect correction function, to eliminate the interference that humidity is measured dust granules substrate concentration, improve the accuracy of measured value.3, the utility model increases at the acceptance division of dust instrument body the radiator valve be made up of temperature sensor and Chip-R microheater, to improve the resistance to low temperature of the electrooptical device on acceptance division, ensure the on-line operation that dust sensor is reliable and stable under the rugged surroundings in winter of outdoor.4, the utility model control switching circuit of adding zero gas loop, school and being made up of controller, throttling valve and transfer valve, dust instrument body can be realized according to the calibration cycle of program setting and export the closed automatic switchover with disconnecting with input gas circuit, thus the gas circuit of dust instrument body is automatically switched to the on-line automatic calibration that null value is carried out in zero gas loop, school, to eliminate the impact of zero point drift on measurement accuracy of dust sensor, improve the stability of dust instrument sensor.5, the utility model is connected a standard scatter plate by stepper motor with topworks, automatically this standard scatter plate can be automatically switched to light scattering district according to the calibration cycle of program setting, after the actual measured value of standard of comparison scatter plate dispatches from the factory calibration value with it, automatically the electrical quantity of amplification and analog to digital conversion circuit is regulated by digital regulation resistance, thus realize the automatic calibration of metering circuit, the systematic error that float during to eliminate, temperature drift etc. causes, improves stability and the reliability of dust sensor.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description is carried out to the utility model.But should be appreciated that being provided only of accompanying drawing understands the utility model better, they not should be appreciated that paired restriction of the present utility model.
Fig. 1 is the structural representation of the utility model dust sensor monitoring system.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1, the dust sensor monitoring system that the utility model provides comprises cell-phone customer terminal 100 and dust instrument body 200, and wherein dust instrument body 200 comprises single-chip microcomputer 1, sampling pump 2, transfer valve 3 and throttling valve 4, scattered light test chamber 5, acceptance division 6 and controller 7.Cell-phone customer terminal 100 carries out information interaction by bluetooth communication module 8 and the single-chip microcomputer 1 of dust instrument body 200, to realize controlled in wireless and the data display of cell-phone customer terminal 100 pairs of dust instrument bodies 200.
Single-chip microcomputer 1 is electrically connected with sampling pump 2 by constant-current controller 9, and constant-current controller 9, while driving sampling pump 2, obtains the flow information of sampling pump 2 and feeds back to single-chip microcomputer 1 with the operational factor of sampling pump 2, ensures that sampling pump 2 is sampled with constant rate.Transfer valve 3 has an entrance and two outlets, its entrance connects the outlet of sampling pump 2, wherein an outlet connects the entrance of scattered light test chamber 5 by threeway 10, and the outlet of scattered light test chamber 5 connects the entrance of sampling pump 2 through filter 11, thus forms zero gas loop, school.Another outlet of transfer valve 3 is then communicated with air, and becomes exhausr port after controlled switching.The entrance of throttling valve 4 is communicated with air using as sample gas entrance, its outlet connects the entrance of scattered light test chamber 5 by threeway 10, sample gas enters air by the exhausr port of transfer valve 3 after scattered light test chamber 5, filtrator 11, sampling pump 2, thus forms sampling gas circuit.The side of scattered light test chamber 5 is provided with light source 12, and acceptance division 6 is arranged on the opposite side of the scattered light test chamber 5 relative with light source 12.The scattered light signal that scattered light test chamber 5 sends is converted to electric signal by the photoelectric sensor (not shown) on it by acceptance division 6, this electric signal is through amplifying and sending single-chip microcomputer 1 to after analog to digital conversion circuit 13 process, single-chip microcomputer 1 connects amplification and analog to digital conversion circuit 13 by a digital regulation resistance 14 again, to adjust the electrical quantity of amplification and analog to digital conversion circuit 13.The output terminal of controller 7 is divided into three tunnels, the first via is electrically connected with throttling valve 4 by driver 15, second tunnel is electrically connected with transfer valve 3 by driver 16,3rd tunnel then connects a stepper motor 18 by driver 17, the output terminal of stepper motor 18 is linked in sequence topworks 19 and a standard scatter plate 20, and by this topworks 19, scattered light test chamber 5 is sent into/withdrawn to standard scatter plate 20.
The utility model in use, first user arranges the operating parameter of dust instrument body 200 by cell-phone customer terminal 100, comprise the parameters such as sampling time, sampling period and mass concentration conversion coefficient, and pass through bluetooth communication module 8 by aforesaid operations parameter transmission to single-chip microcomputer 1.Then single-chip microcomputer 1 controls sampling pump 2 by constant-current controller 9 and sample gas is sucked, obtain sampling flow data to adjust the operational factor of sampling pump 2 from constant-current controller 9 simultaneously, make sampling pump 2 with constant rate sampling to ensure the correct of cutting curve, and then ensure the accurate of measured value.Sample gas containing dust granules thing enters scattered light test chamber 5 through throttling valve 4, scattered light is produced under light source 12 irradiates, photoelectric sensor on acceptance division 6 is converted into electric signal, this electric signal is through amplifying and sending single-chip microcomputer 1 to after analog to digital conversion circuit 13 process, data processing and outgoing management is completed by single-chip microcomputer 1, and send by bluetooth communication module 8 data obtained to cell-phone customer terminal 100 and show, check for user.The sample gas flowed out from scattered light test chamber 5 enters sampling pump 2 after filtrator 11 filters, and the exhausr port finally by transfer valve 3 enters air.
Meanwhile, controller 7 can regularly perform zero point correction and Measurement and calibration process by plug-in:
1. when performing zero point correction process, controller 7 control and drive system 15 turns off throttling valve 4, and control and drive system 16 turns off the exhausr port of transfer valve 3 simultaneously.Now sample gas import is cut off, and zero gas loop, school is switched on, and the clean air filtered through filtrator 11 is sent into scattered light test chamber 5 through zero gas loop, school and transfer valve 3 by sampling pump 2.The scattered light that light source 12 is formed after scattered light test chamber 5 is received portion 6 and receives, through amplifying and being transferred to single-chip microcomputer 1 after analog to digital conversion circuit 13 process, single-chip microcomputer 1 preserves the measured value of clean air as actual null value, and when next time measures, single-chip microcomputer 1 will deduct this actual null value in the measurement thus realize zero point correction.
2. after completing school zero by above-mentioned zero point correction process, perform Measurement and calibration process: first controller 7 control and drive system 17 Driving Stepping Motor 18 runs, it is inner that calibration standard scatter plate 20 is sent into scattered light test chamber 5 by topworks 19, the scattered light that light source 12 is formed after standard scatter plate 20 is received by acceptance division 6, through amplifying and being transferred to single-chip microcomputer 1 after analog to digital conversion circuit 13 process.Then single-chip microcomputer 1 calibration value that the actual measured value of standard scatter plate 20 dispatched from the factory with it compares, when actual measured value exceeds specialized range with the error of the calibration value that dispatches from the factory, single-chip microcomputer 1 is by the direction contrary with deviation adjustment digital regulation resistance 14, the i.e. electrical quantity of adjustment amplification and analog to digital conversion circuit 13.Through several times measure-compare-adjustment after, make the actual measured value of standard scatter plate 20 with dispatch from the factory calibration value error in specialized range, complete the automatic calibration of dust instrument body 200.After completing dust instrument body 200 calibration, controller 7 again control and drive system 17 Driving Stepping Motor 18 runs, and calibration standard scatter plate 20 is withdrawn from and got back to initial position by topworks 19 from scattered light test chamber 5.Last controller 7 control and drive system 16 makes transfer valve 3 return, is connected by the exhausr port of the outlet of sampling pump 2 and transfer valve 3, and control and drive system 15 opens throttling valve 4 simultaneously, and sampling gas circuit is switched on, and so far completes Measurement and calibration process.
In the above-described embodiments, single-chip microcomputer 1 also connects a humidity sensor 21, arranges On/Off humidity debugging functions at cell-phone customer terminal 100 simultaneously.The on-the-spot humidity of humidity sensor 21 Real-Time Monitoring, when single-chip microcomputer 1 receives the unlatching humidity debugging functions instruction of cell-phone customer terminal 100, single-chip microcomputer 1 is revised measured value according to preset humidity effect correction function, to eliminate the interference that humidity is measured dust granules substrate concentration, improve the accuracy of measured value.
In the above-described embodiments, acceptance division 6 is also provided with a radiator valve 22, this radiator valve 22 forms (not shown) by temperature sensor and Chip-R as microheater, solved the resistance to low temperature of the photoelectric sensor on acceptance division 7 by thermostatic control, ensure dust instrument reliable and stable on-line operation under the rugged surroundings in winter of outdoor.
In the above-described embodiments, single-chip microcomputer also presets communication interface with pc 23, long-range PC can be used to realize, with the both-way communication of dust instrument body 200, providing more detailed data to present interface by this communication interface with pc 23 user.
In the above-described embodiments, a cell-phone customer terminal 100 can be connected with more than two dust instrument bodies 200 by bluetooth communication module 8 simultaneously, thus realize controlled in wireless and the data display of multiple stage dust instrument body 200 by a cell-phone customer terminal 100.
The various embodiments described above are only for further describing the purpose of this utility model, technical scheme and beneficial effect; be not limited to the utility model; all within spirit of the present utility model and principle; any amendment of making, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a mobile phone control type dust sensor monitoring system, it is characterized in that, this monitoring system comprises cell-phone customer terminal and dust instrument body, and wherein dust instrument body comprises single-chip microcomputer, sampling pump, transfer valve and throttling valve, scattered light test chamber, acceptance division and controller; Described cell-phone customer terminal carries out information interaction by the single-chip microcomputer of bluetooth communication module and described dust instrument body;
Described single-chip microcomputer is electrically connected with described sampling pump by a constant-current controller; Described transfer valve has an entrance and two outlets, its entrance connects described sampling delivery side of pump, wherein an outlet connects the entrance of described scattered light test chamber by threeway, and the outlet of described scattered light test chamber connects the entrance of described sampling pump through a filtrator, to form zero gas loop, school; Another outlet of described transfer valve is then communicated with air, and becomes exhausr port after controlled switching; The entrance of described throttling valve is communicated with air using as sample gas entrance, its outlet connects the entrance of described scattered light test chamber by described threeway, sample gas enters air by the exhausr port of described transfer valve after described scattered light test chamber, filtrator, sampling pump, to form sampling gas circuit; The side of described scattered light test chamber is provided with a light source, and described acceptance division is then arranged on the opposite side of the described scattered light test chamber relative with described light source; The scattered light signal that described scattered light test chamber sends is converted to electric signal by the photoelectric sensor on it by described acceptance division, this electric signal amplifies through one and sends described single-chip microcomputer to after analog to digital conversion circuit process, and described single-chip microcomputer connects described amplification and analog to digital conversion circuit by a digital regulation resistance again; The output terminal of described controller is divided into three tunnels, the first via is electrically connected with described throttling valve by the first driver, second tunnel is electrically connected with described transfer valve by the second driver, 3rd tunnel then connects a stepper motor by the 3rd driver, the output terminal of described stepper motor is linked in sequence a topworks and a standard scatter plate, and described scattered light test chamber is sent into/withdrawn to described standard scatter plate by described topworks.
2. a kind of mobile phone control type dust sensor monitoring system as claimed in claim 1, it is characterized in that, described single-chip microcomputer also connects a humidity sensor.
3. a kind of mobile phone control type dust sensor monitoring system as claimed in claim 1, is characterized in that, described acceptance division is also provided with the radiator valve be made up of as microheater temperature sensor and Chip-R.
4. a kind of mobile phone control type dust sensor monitoring system as claimed in claim 2, is characterized in that, described acceptance division is also provided with the radiator valve be made up of as microheater temperature sensor and Chip-R.
5. a kind of mobile phone control type dust sensor monitoring system as claimed in claim 1 or 2 or 3 or 4, is characterized in that, described single-chip microcomputer also presets the communication interface with pc making long-range PC and described dust instrument body realize both-way communication.
6. a kind of mobile phone control type dust sensor monitoring system as claimed in claim 1 or 2 or 3 or 4, is characterized in that, described cell-phone customer terminal is connected with two the above dust instrument bodies by described bluetooth communication module simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483192.1U CN204154607U (en) | 2014-08-26 | 2014-08-26 | A kind of mobile phone control type dust sensor monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483192.1U CN204154607U (en) | 2014-08-26 | 2014-08-26 | A kind of mobile phone control type dust sensor monitoring system |
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| CN204154607U true CN204154607U (en) | 2015-02-11 |
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| CN201420483192.1U Expired - Fee Related CN204154607U (en) | 2014-08-26 | 2014-08-26 | A kind of mobile phone control type dust sensor monitoring system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872326A (en) * | 2017-04-12 | 2017-06-20 | 广东美的制冷设备有限公司 | The automatic zero-setting method of dust sensor |
| CN107063955A (en) * | 2017-04-18 | 2017-08-18 | 击风科技（北京）有限公司 | air particle detector calibration method and management system |
| WO2019239855A1 (en) * | 2018-06-13 | 2019-12-19 | ソニー株式会社 | Environment measurement device, information processing device, information processing system, information processing method, and program |
| CN110953693A (en) * | 2019-12-24 | 2020-04-03 | 珠海格力电器股份有限公司 | Display panel and air conditioner |
-
2014
- 2014-08-26 CN CN201420483192.1U patent/CN204154607U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872326A (en) * | 2017-04-12 | 2017-06-20 | 广东美的制冷设备有限公司 | The automatic zero-setting method of dust sensor |
| CN107063955A (en) * | 2017-04-18 | 2017-08-18 | 击风科技（北京）有限公司 | air particle detector calibration method and management system |
| WO2019239855A1 (en) * | 2018-06-13 | 2019-12-19 | ソニー株式会社 | Environment measurement device, information processing device, information processing system, information processing method, and program |
| CN110953693A (en) * | 2019-12-24 | 2020-04-03 | 珠海格力电器股份有限公司 | Display panel and air conditioner |
| CN110953693B (en) * | 2019-12-24 | 2024-04-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Filter screen congestion monitoring method and computer readable storage medium |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20180826 |
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| CF01 | Termination of patent right due to non-payment of annual fee |