CN204556454U - A kind of portable air quality monitoring device - Google Patents
A kind of portable air quality monitoring device Download PDFInfo
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- CN204556454U CN204556454U CN201520194869.4U CN201520194869U CN204556454U CN 204556454 U CN204556454 U CN 204556454U CN 201520194869 U CN201520194869 U CN 201520194869U CN 204556454 U CN204556454 U CN 204556454U
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- air
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- air quality
- lens group
- optical lens
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Abstract
The utility model discloses a kind of portable air quality monitoring device, this device comprises the shell of laser emitting module, preposition optical lens group, air storage cavity, rearmounted optical lens group, Signal reception processing module, display panel module, power supply module and Worn type; Laser emitting module sends laser and shines to air to be detected, because laser has the change of light intensity after air, at receiving end by judging that light intensity goes to detect air quality indexes, if particulate in air is more, namely air is more muddy, then the light intensity that obtains of receiving end is just weak; If particulate in air is less, namely air is cleaner, then the light intensity that obtains of receiving end is stronger.The detection of air quality many indexes can be realized by air filtration pieces, the multi-staged air storage design of cavity and the use of sensor simultaneously.The utility model is Wearable equipment, and have the feature of small volume and less weight, relevance grade is more extensive.
Description
Technical field
The utility model relates to atmosphere quality monitoring device, and especially a kind of portable air quality monitoring device, can be applicable to daily life field.
Background technology
Air quality is as one of the index of the safe living environment of people, and especially China in Recent Years air quality worse becoming, its concern obtained is increasing.On market, the gas detecting instrument such as domestic type formaldehyde is more at home, but because the usual volume of these instruments is comparatively large, and only adopt the detection mode of sensor, therefore use and there is limitation, and also more single to the detection of air quality indexes, price is not cheap yet.Market abroad, the instrument detected air quality indexes is also a lot, but price is very expensive.
No matter be domestic detector and external detector in the market, common shortcoming has: (1), the volume of apparatus is comparatively large, portable not, such as: a fixing place can only be positioned over, air quality in family can only be monitored at home, use limitation comparatively large, underaction is convenient.(2), instrument is more single for the measurement of air quality indexes, and such as: the instrument had can only measure formaldehyde gas, what have can only measure PM2.5, cannot meet the requirement of user for more air quality indexes.(3), accuracy of measurement is not high enough.The method of the realization of an air quality monitor employing sensor mostly realizes, and by the composition in Sensor monitoring air, then feeds back to processor, finally will provide corresponding air quality indexes value after feedback signal process by processor.This method realizes simple, but does not have other mode as reference, cannot be optimized, correction-air masss desired value, causes the defect of accuracy of measurement.
Utility model content
The purpose of this utility model be for overcome the monitoring of air quality indexes on market single, carry inconvenience, not enough and a kind of portable air quality monitoring device that is that provide such as involve great expense, the mode that this device have employed laser light source power combines with sensor technology and realizes the measurement of air quality indexes, has the advantages that degree of stability is high and accuracy is high.
The concrete technical scheme realizing the utility model object is:
A kind of portable air quality monitoring device, this device comprises:
Laser emitting module, provides the radiation source needed for air quality monitoring;
Preposition optical lens group, is connected with laser emitting module light path, and the pointolite sent by laser emitting module becomes source of parallel light, irradiates the air in air storage cavity;
Air storage cavity, storage needs the air of monitoring, accepts the irradiation of preposition optical lens group;
Rearmounted optical lens group, pools pointolite by the source of parallel light after air storage cavity;
Signal reception processing module, receives the feedback signal of sensor in the pointolite light intensity signal and this module of rearmounted optical lens group, and provides corresponding air quality indexes by after these two kinds of signal transacting;
Air filtration pieces, is located at air storage cavity, and the pellet in filtered air to carry out classification, thus reaches the object of the different index of air quality monitoring function;
Display screen output module, is connected with Signal reception processing module, and drives display screen to show the achievement data of air quality;
Power supply module, being connected with laser emitting module, Signal reception processing module and display screen output module respectively, for providing power supply, and being charged by charging inlet;
Portable enclosure, stationary installation body, wearing or carrying for device;
Switch, is connected with power supply module, opens and closes device; Wherein:
Described Signal reception processing module comprises sensor, laser pickoff, signal amplitude processor, high-speed ADC circuit and microcontroller, described sensor, laser pickoff connection signal amplitude processor, signal amplitude processor connects high-speed ADC circuit and microcontroller successively.
Compared with prior art, characteristics and advantages of the present utility model is:
(1), easy to carry: design small and exquisite, outward appearance likeness in form wrist-watch, with it therefore can be worn at, usable range is wide.
(2) the air quality indexes kind, detected is many: due to the use having air filtration pieces, multi-staged air to store cavity and sensor, can detect multiple air quality indexes, no longer be confined to single air quality indexes.
(3), accuracy is high: owing to have employed the method for laser optical path detection mode combined sensor, has cross-referenced, can mutually optimize testing result and revise, thus in accuracy, have obvious lifting between two kinds of modes.
Accompanying drawing explanation
Fig. 1 is the utility model outside drawing;
Fig. 2 is the structural representation between the utility model laser emitting module and preposition optical lens group;
Fig. 3 is the structural representation between the rearmounted optical lens group of the utility model and signal receiving module;
Fig. 4 is the utility model structured flowchart;
Fig. 5 is the utility model signal receiving module structured flowchart;
Fig. 6 is the utility model Cleaning Principle schematic diagram, and figure a is that air is cleaner; Figure b is that air is more dirty;
Fig. 7 is the information schematic diagram of the utility model display screen display.
Embodiment
Consult Fig. 1, Fig. 4, the utility model comprises laser emitting module 1, preposition optical lens group 2, rearmounted optical lens group 4, signal receiving module 5, air storage cavity 3, air filtration pieces 6, display panel module 7, power supply module 8 and Wearable shell 9, wherein:
Laser emitting module 1: adopt laser diode driver circuit, using this driving laser LED lighting as the light source detecting air.This driving circuit has the features such as cost is low, low in energy consumption.
Preposition optical lens group 2: the pointolite for LASER Light Source being emitted becomes source of parallel light.
Air storage cavity 3: for storing the air needing to detect.Cavity is divided into three grades, and the air stored in every one-level all filters through different filter discs, to complete the detection of the different index of air quality.
Air filtration pieces 6: for the pellet in filtered air, to reach the object of the different index of air quality monitoring function.Such as, the air in one of them air storage cavity only remains PM2.5 particle after filtering, and the air quality indexes detected in this air storage cavity with this is for PM2.5.
Rearmounted optical lens group 4: the directional light after air storage cavity 3 is pooled pointolite, for post-module process.
Signal reception processing module 5: for receiving the feedback signal of sensor in the pointolite light intensity signal and this module of rearmounted optical lens group, and provide corresponding air quality indexes by after these two kinds of signal transacting.
Display panel module 7: be connected with Signal reception processing module 5, and drive display screen to show the achievement data of air quality.
Power supply module 8: power supply is provided.Simultaneously by charging inlet 10 for this module is charged.
Worn type shell 9: design and the Watchcase of this shell are similar, can be worn on easily to realize the function of removable wearing in wrist, and serve certain protective effect.
The course of work of the present utility model:
Consult Fig. 1-3, laser diode 13 is made to send pointolite by driving circuit in laser emitting module 1, the position of laser diode 13 needs the focus place being placed on preposition optical lens group 2, utilizes the characteristic of preposition optical lens group 2 that pointolite is transformed into source of parallel light with this.In order to detect the degree of accuracy of Inhalable Particulate, require to be vacuum between laser diode 13 and preposition optical lens group 2.When light source pools pointolite by rearmounted optical lens group 4 after air storage cavity 3, laser pick-off element 15 needs to be placed on this pointolite place, light intensity is judged for signal processing circuit with this, in order to improve the degree of accuracy detecting Inhalable Particulate, require to be vacuum between rearmounted optical lens group 4 and laser pick-off element equally.Before sensor 14 need be placed on rearmounted optical lens group 4, and make it to be exposed among air storage cavity simultaneously, to complete the detection as sulphuric dioxide, nitrogen dioxide etc., and feed back to signal processing circuit.
Consult figure, 4, laser diode is made to send pointolite by driving circuit in laser emitting module 1, source of parallel light is become after preposition optical lens group 2, incident air storage cavity 3, by rearmounted optical lens group 4, source of parallel light is pooled pointolite for signal receiving module 5 treatment and analyses again, finally data message is delivered to display screen display.Wherein power supply module 8 is responsible for laser emitting module 1, signal receiving module 5 and display panel module 7 and powers.
Consult Fig. 5, analog quantity, all through signal amplitude processing circuit processes, to adapt to the requirement of subsequent conditioning circuit to signal amplitude, is then converted to digital quantity through high-speed ADC circuit by the signal that sensor and laser pickoff obtain.Send to display screen after finally by microcontroller digital quantity being carried out analyzing and processing and show corresponding information.
Consult Fig. 6, this figure is that the utility model detects this air quality indexes principle schematic of air pellet.Be with arrow solid line to represent source of parallel light in figure, it is that the pointolite sent by laser emitting module 1 obtains after preposition optical lens group 2.Irregularly shaped object is the pellet in air.Cleaning Principle is as follows: when air ratio is purer, when namely particulate in air is less, and as shown in figure (a), source of parallel light is after air storage cavity, and its light intensity attenuation is limited; When air ratio is more dirty, when namely particulate in air is more, as shown in figure (b), source of parallel light is after air storage cavity, and its light intensity attenuation is larger.By judging the light intensity after eventually passing rearmounted optical lens group 4, draw the data of air quality indexes with this.
Fig. 7 is the air quality indexes information schematic diagram of the utility model display screen display.
Claims (1)
1. a portable air quality monitoring device, is characterized in that this device comprises:
Laser emitting module (1), provides the radiation source needed for air quality monitoring;
Preposition optical lens group (2), is connected with laser emitting module (1) light path, and the pointolite that laser emitting module (1) sends is become source of parallel light;
Air storage cavity (3), storage needs the air of monitoring, accepts the irradiation of preposition optical lens group (2);
Rearmounted optical lens group (4), pools pointolite by the source of parallel light after air storage cavity (3);
Signal reception processing module (5), receives the feedback signal of sensor in the pointolite light intensity signal and this module of rearmounted optical lens group (4), and provides corresponding air quality indexes by after two kinds of signal transacting;
Air filtration pieces (6), for air storage cavity (3), the pellet in filtered air is to carry out classification;
Display screen output module (7), is connected with Signal reception processing module (5), and drives display screen to show the achievement data of air quality;
Power supply module (8), is connected with laser emitting module (1), Signal reception processing module (5) and display screen output module (7) respectively, for providing power supply, and by charging inlet (10) charging;
Portable enclosure (9), stationary installation, wearing or carrying for device;
Switch (12), is connected with power supply module, opens and closes device; Wherein:
Described Signal reception processing module (5) comprises sensor, laser pickoff, signal amplitude processor, high-speed ADC circuit and microcontroller, described sensor, laser pickoff connection signal amplitude processor, signal amplitude processor connects high-speed ADC circuit and microcontroller successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194869.4U CN204556454U (en) | 2015-04-02 | 2015-04-02 | A kind of portable air quality monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194869.4U CN204556454U (en) | 2015-04-02 | 2015-04-02 | A kind of portable air quality monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204556454U true CN204556454U (en) | 2015-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520194869.4U Expired - Fee Related CN204556454U (en) | 2015-04-02 | 2015-04-02 | A kind of portable air quality monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204556454U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767818A (en) * | 2016-12-05 | 2017-05-31 | 北京仿真中心 | Wearable electronic and its healthy travel system |
| CN108195730A (en) * | 2018-03-08 | 2018-06-22 | 清华大学 | The peripherals detector and system of air particle |
-
2015
- 2015-04-02 CN CN201520194869.4U patent/CN204556454U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767818A (en) * | 2016-12-05 | 2017-05-31 | 北京仿真中心 | Wearable electronic and its healthy travel system |
| CN108195730A (en) * | 2018-03-08 | 2018-06-22 | 清华大学 | The peripherals detector and system of air particle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20160402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |