CN101813602B - Multipoint detection device of dust particle - Google Patents
Multipoint detection device of dust particle Download PDFInfo
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- CN101813602B CN101813602B CN201010166874.6A CN201010166874A CN101813602B CN 101813602 B CN101813602 B CN 101813602B CN 201010166874 A CN201010166874 A CN 201010166874A CN 101813602 B CN101813602 B CN 101813602B
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Abstract
The present invention relates to a kind of multipoint detection device measuring dust particle quantity, size, humiture, wind speed in unit volume air in clean environment.Multipoint detection device is based on RS485 bus design, adopt main frame (PC)--RS232/485 translation interface--active router-miniature transmitter--multiple spot detection control module 4 Rotating fields, signal adopts wireless transmission, master control (PC) can monitor 256 points (temperature, humidity, wind speed, cleanliness factor) simultaneously, can select according to user.Each point arranges miniature transmitter, and electric signal exports, and wireless and host communication, avoid each point cross jamming, make each point directly easy to detect.
Description
Technical field
The present invention relates to a kind of multipoint detection device measuring dust particle quantity, size, humiture, wind speed in unit volume air in clean environment.
Background technology
Toilet is the controlled workshop of a kind of air suspension concentration, and it is built and use and all requires to reduce in workshop the particle entering, produce and be detained to greatest extent, and other correlation parameters such as the temperature in workshop, humidity, pressure also require controlled.Therefore, the dust particle quantity detecting toilet is in real time the basis controlling clean environment index.
Current clean environment mostly adopts separate unit instrument manual detection, because the existence (people is also pollution source) of people makes the cleanliness factor of environment untrue.External also have employing multiple spot detection mode, but adopt several sampling pump to bleed, and multiple spot detection place adopts sampling pipe to arrange, such air-flow in the duct flowing time is long, and also need multi-point sampling to change, each point pollutes mutually simultaneously, detects inaccurate.
Summary of the invention
The object of this invention is to provide a kind of employing radio network technique, test data can be delivered to pulpit by wireless network, simultaneously the control signal of pulpit also can by wireless network be sent to transmitter execution work, data integrations such as detecting particle Trail, wind speed, humiture to be carried out the dust particle pick-up unit for the treatment of technology by transmitter together.
For achieving the above object, the technical solution used in the present invention is:
Multipoint detection device of dust particle is based on RS485 bus design, adopt main frame (PC)--RS232/485 translation interface--active router-miniature transmitter--multiple spot detection control module 4 Rotating fields, signal adopts wireless transmission, master control (PC) can monitor 256 points (temperature, humidity, wind speed, cleanliness factor) simultaneously, can select according to user.Each point arranges miniature transmitter, and electric signal exports, and wireless and host communication, avoid each point cross jamming, make each point directly easy to detect.
Described multiple spot detection control module is made up of parts such as optical sensor, temperature sensor, humidity sensor, air velocity transducer, air pump, signal processing circuit board, control circuit board, power panel, casings.Described optical sensor is made up of semiconductor laser, 90 degree of photoelectric commutators, collecting lens, cavity, light trapping, admission piece and outlet nozzles.The primary optical axis of described photoelectric commutator and the primary optical axis of semiconductor laser perpendicular.Because instrument adopts light scattering principle, namely detecting instrument makes air to be measured become thread line and crosses scattering cavity area, light source is from the side in exposure cavity, the scattered light of each particle receives with current impulse form, and detection system detects the particle number of different-grain diameter automatically according to the amplitude of its pulse signal and accumulative number.
Described circuit board comprises signal processing unit, indicative control unit.Described signal processing unit comprises signal amplifier, A/C converting unit, counter.Described signal amplifier connects A/C converting unit, counter successively, and counter connects indicative control unit.
The present invention compared with the prior art tool has the following advantages:
There is provided a kind of and adopt radio network technique, test data can be delivered to pulpit by wireless network, simultaneously the control signal of pulpit also can by wireless network be sent to transmitter execution work, data integrations such as detecting particle Trail, wind speed, humiture to be carried out the dust particle detection system for the treatment of technology by transmitter together.Can the situation such as cleanliness factor, wind speed of on-line checkingi clean environment arbitrfary point, the on-the-spot actual state of true reflection, also can Real-Time Monitoring production on-site environment.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Accompanying drawing 2 is the structural representation of signal processing unit of the present invention.
Accompanying drawing 3 is the structural representation of optical sensor of the present invention.
Wherein: 1, main frame (PC) 2, RS232/485 translation interface 3, active router 4, miniature transmitter 5, cleanliness factor detection control module, 6, Temperature and Humidity control module, 7, wind speed measurement control module 8, printer 15, signal processing unit 16, indicative control unit 17, collecting lens 18, light trapping 19, cavity 20, admission piece 21, 90 degree of photoelectric commutator 22 semiconductor lasers 23, outlet nozzle 24, 270 degree of photoelectric commutators 25, signal amplifier 26, A/C converting unit 27, counter
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1, multipoint detection device of dust particle, comprise main frame (1), RS232/485 translation interface (2), active router (3), miniature transmitter (4), cleanliness factor detection control module (5), Temperature and Humidity control module (6), wind speed measurement control module (7), signal adopts wireless transmission, main frame (1) can monitor 256 points (cleanliness factor, humiture, wind speed) simultaneously, can select according to user.Each point arranges cleanliness factor detection control module (5), Temperature and Humidity control module (6), wind speed measurement control module (7), exported detecting the data obtained by miniature transmitter (4) electric signal, and it is wireless with main frame (1) communication
Avoid each point cross jamming, make each point directly easy to detect.
Cleanliness factor detection control module (5) is made up of parts such as optical sensor (9), air pump, signal processing unit, control circuit board, power panel, casings.Described optical sensor (9) is made up of semiconductor laser (22), 90 degree of photoelectric commutators (21), collecting lens (17), cavity (19), light trapping (18), admission piece (20) and outlet nozzles (23).Optical sensor (9) adopts two photelectric receivers to be arranged on respectively in two vertical planes, and because angle and direction is different, the grit signal magnitude received also is had any different, but signal rule is consistent.On the one hand, after the Signal averaging (this signal is U) of two photelectric receiver detections, signal is strengthened, and more clearly can determine the size and number of grit, avoids the leakage meter of particle and repeats meter, making counting more accurate.On the other hand, after being shifted by the signal of 270 degree of opto-electronic conversion (24), then by two paths of signals superposition (this signal is V), after U signal compares with V signal and determines particle diameter, V signal is quadratured, and accurately can draw total geometric volume of different-grain diameter.Like this, number concentration and volumetric concentration all can detect.The primary optical axis of photoelectric commutator (21) and the primary optical axis of semiconductor laser (22) perpendicular.Because instrument adopts light scattering principle, namely detecting instrument makes air to be measured become thread line and crosses scattering cavity area, light source irradiates in cavity (18) from the side, the scattered light of each particle receives with current impulse form, and detection system detects the particle number of different-grain diameter automatically according to the amplitude of its pulse signal and accumulative number.
Signal processing unit comprises signal amplifier (25), A/C converting unit (26), counter (27).Described signal amplifier (25) connects A/C converting unit (26), counter (27) successively, counter (27) connects indicative control unit, data input miniature transmitter (4), miniature transmitter (4) electric signal exports, and it is wireless with main frame (1) communication, testing result in the upper display of main frame (1), and can connect printer (8) print data.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to allow the personage being familiar with this art can understand content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (1)
1. multipoint detection device of dust particle, it is characterized in that: comprise main frame (1), RS232/485 translation interface (2), active router (3), miniature transmitter (4), cleanliness factor detection control module (5), Temperature and Humidity control module (6), wind speed measurement control module (7), signal adopts wireless transmission, main frame (1) can monitor cleanliness factor, humiture and the wind speed of at 256 simultaneously, can select according to user; Each point arranges cleanliness factor detection control module (5), Temperature and Humidity control module (6), wind speed measurement control module (7), exported detecting the data obtained by miniature transmitter (4) electric signal, and it is wireless with main frame (1) communication, avoid each point cross jamming, make each point directly easy to detect;
Cleanliness factor detection control module (5) is made up of optical sensor (9), air pump, signal processing unit, control circuit board, power panel, housing part; Described optical sensor (9) is made up of semiconductor laser (22), 90 degree of photoelectric commutators (21), 270 degree of photoelectric commutators (24), collecting lens (17), cavity (19), light trapping (18), admission piece (20) and outlet nozzles (23);
Optical sensor (9) adopts two photelectric receivers to be arranged on respectively in two vertical planes, and because angle and direction is different, the grit signal magnitude received also is had any different, but signal rule is consistent; On the one hand, after the signal U superposition of two photelectric receiver detections, signal is strengthened, and more clearly can determine the size and number of grit, avoids the leakage meter of particle and repeats meter, making counting more accurate; On the other hand, after being shifted by the signal of 270 degree of photoelectric commutators (24), then to be superposed by two paths of signals V, after U signal compares with V signal and determines particle diameter, V signal is quadratured, and accurately can draw total geometric volume of different-grain diameter; Like this, number concentration and volumetric concentration all can detect; The primary optical axis of 90 degree of photoelectric commutators (21) and the primary optical axis of semiconductor laser (22) perpendicular; Owing to adopting light scattering principle, even if air to be measured becomes thread line cross scattering cavity area, light source irradiates in cavity (19) from the side, the scattered light of each particle receives with current impulse form, automatically detects the particle number of different-grain diameter according to the amplitude of its pulse signal and accumulative number;
Signal processing unit comprises signal amplifier (25), A/C converting unit (26), counter (27); Described signal amplifier (25) connects A/C converting unit (26), counter (27) successively, counter (27) connects indicative control unit, data input miniature transmitter (4), miniature transmitter (4) electric signal exports, and it is wireless with main frame (1) communication, testing result in the upper display of main frame (1), and can connect printer (8) print data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010166874.6A CN101813602B (en) | 2010-05-10 | 2010-05-10 | Multipoint detection device of dust particle |
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| CN201010166874.6A CN101813602B (en) | 2010-05-10 | 2010-05-10 | Multipoint detection device of dust particle |
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| CN101813602A CN101813602A (en) | 2010-08-25 |
| CN101813602B true CN101813602B (en) | 2015-09-09 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121893B (en) * | 2010-12-02 | 2012-07-04 | 中国人民解放军防化指挥工程学院 | Ultrahigh-pressure water fog test system |
| CN103353434A (en) * | 2013-06-18 | 2013-10-16 | 成都佳锂科技有限公司 | Portable bluetooth fine particulate matter detector with purifying function |
| CN103412621A (en) * | 2013-08-21 | 2013-11-27 | 宁夏新航信息科技有限公司 | Method for automatic dust removal for computer |
| CN105571997A (en) * | 2016-01-19 | 2016-05-11 | 华北电力大学（保定） | Measurement and control method and device for particle concentration of indoor air |
| CN107063358A (en) * | 2017-06-14 | 2017-08-18 | 东莞市拓福德涂装设备有限公司 | A kind of new-type fully-automatic intelligent monitoring system |
| CN108387492A (en) * | 2017-11-13 | 2018-08-10 | 苏州宏瑞净化科技有限公司 | Photometer |
| CN108614081A (en) * | 2018-06-19 | 2018-10-02 | 吉林大学 | A kind of partition type air detection method |
| CN110851984B (en) * | 2019-11-12 | 2021-05-07 | 长江存储科技有限责任公司 | Data processing method and device |
| CN113984601B (en) * | 2021-12-28 | 2022-04-08 | 中国电子科技集团公司第二十八研究所 | Environmental dust monitoring system |
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