CN105486819A - Movable indoor air quality detector and use method thereof - Google Patents
Movable indoor air quality detector and use method thereof Download PDFInfo
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- CN105486819A CN105486819A CN201610010003.2A CN201610010003A CN105486819A CN 105486819 A CN105486819 A CN 105486819A CN 201610010003 A CN201610010003 A CN 201610010003A CN 105486819 A CN105486819 A CN 105486819A
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Abstract
The invention provides a movable indoor air quality detector and a use method thereof. The detector comprises a base. A first support is fixedly connected to the base. A slide rail is arranged on the first support. A pan-tilt is connected with the slide rail in a sliding mode. A motor is arranged on the base. The pan-tilt comprises a pedestal. The lower end of the pedestal is connected with the slide rail in a sliding mode. A steering engine is arranged at the upper end of the pedestal. An output shaft of the steering engine is sleeved with a rotary tray and drives the rotary tray to rotate. A second support is fixedly connected to the rotary tray. A chip rack is arranged at the center of the second support. A chip is installed on the chip rack. Wiring boards are arranged on the two sides of the chip rack. The second support extends outwards to form blades. Sensors are arranged at the ends of the blades and connected with the chip through wires. Various sensors are carried so that various types of indoor pollution gas can be detected. The sensors can be switched through the rotary pan-tilt. Detection of various types of pollution gas is conducted on the same position so that detection of air pollution at different heights can be achieved.
Description
Technical field:
The present invention relates to Detection of Air Quality technical field, be specifically related to a kind of the Mobile type indoor mass detecting instrument and the using method thereof that detect IAQ (indoor air quality).
Background technology:
Along with expanding economy, the requirement of people to living environment day by day improves, various ornament materials is applied in the middle of house decoration, and the noxious material (as formaldehyde, benzene etc.) contained in the middle of these materials slow release out, can produce harm to human body in routine use.
The main air detecting device tested object in present market is single, mostly only detect a certain gas, incomplete to the detection of indoor pollutant, can not provide than more comprehensive testing result for people, when indoor also have other dusty gass not to be detected, if people move in house, can have an impact to the healthy of people; And there is the laminar flow layout of pressing differing heights in the air pollution of interior space distribution, the dusty gas distribution of differing heights is also different, and existing detection is mostly desktop level, can only detect the pollution situation of sustained height, the real time status of space air in whole room can not be reflected comprehensively, cut that to export data single, data visual not strong.
Summary of the invention:
The object of this invention is to provide a kind of Mobile type indoor air quality detector and using method thereof, can detect indoor differing heights, and multiple dusty gas can be detected, improve the quality detected.
For achieving the above object, the present invention is by the following technical solutions:
A kind of Mobile type indoor air quality detector provided by the invention, comprise: pedestal, described pedestal is connected with the first support, described first support is provided with slide rail, The Cloud Terrace and slide rail are slidably connected, described pedestal is also provided with motor, driven by motor The Cloud Terrace moves up and down along slide rail, described The Cloud Terrace comprises base, base lower end and slide rail are slidably connected, described base upper end is provided with steering wheel, the output shaft of steering wheel is set with rotary-tray, output shaft rotation driven rotary pallet rotates, described rotary-tray is connected with the second support, the center of the second support is provided with chip stand, chip stand is provided with chip, described chip stand both sides are provided with terminal block, the data collected by chip for grafting data line are outwards conducted, second support stretches out formation blade, blade tip is provided with sensor, sensor is connected by wire with chip, to the data that chip transmission detects.
Described first support is door shaped stent, connecting rod is provided with between the two stands of door shaped stent, described connecting rod is added is provided with leading screw and slide rail, tripod head frame is located on leading screw and slide rail, the base of described The Cloud Terrace offers threaded hole and slide opening, described leading screw is through threaded hole, and slide rail is through slide opening, leading screw one end connects motor, and screw turns drives The Cloud Terrace to slide on slide rail.
The output shaft of described motor connects leading screw one end by shaft coupling.
Described second support is cross bracket, and four blade tips of cross bracket are separately installed with sensor.
Described sensor is at least a kind of sensor, for detecting a kind of gas content.
Described door shaped stent side is provided with the 3rd support, and the 3rd support is L-type support, one end, long limit of L-type support and door shaped stent affixed, the minor face of L-type support and earth surface, for supporting door shaped stent.
Described door shaped stent side is provided with brake rod, the shaft of brake rod is connected with the first brake disc, described first brake disc offers multiple first through hole, the end of brake rod is provided with round boss, the end on the long limit of described L-type support is connected with the second brake disc, described second brake disc offers multiple second through hole, described second through hole is equal with the first through hole radius, the circle centre position of the second brake disc side offers circular groove, described circular groove matches with described round boss, the second brake disc to be installed on the end of brake rod, pin inserts the first through hole and the second through hole, block is carried out to the second brake disc.
The circle centre position of described second brake disc opposite side is convexly equipped with square boss, square boss offers third through-hole, the end on the long limit of described L-type support is provided with fourth hole, described fourth hole is equal with third through-hole radius, bolt inserts third through-hole and fourth hole, and the second brake disc is fixed in L-type support end.
The output shaft of described steering wheel is set with steering wheel shaft collar, steering wheel shaft collar is provided with rotary-tray.
Described motor is direct current generator.
Described sensor is MQ series sensor.
Adopt the method that above-mentioned a kind of Mobile type indoor air quality detector detects room air, concrete steps are as follows:
The first step: determine surveyed area and after detecting height, open motor, by the driving of motor, The Cloud Terrace is transported to desired location, disable motor;
Second step: turn on sensor, opens steering wheel, by the output shaft driven rotary support of steering wheel, and then is with sensor rotation affixed on moving vane and blade, at sustained height conversion diverse location, detects, gather the data of multi-angle to multiple angle;
3rd step: close steering wheel, opens motor, The Cloud Terrace is transported to differing heights, disable motor, opens steering wheel, detects according to multiple angles of step 2 to sustained height, gather the data of multi-angle, to differing heights carry out repeated detection after, obtain many groups and detect data;
4th step: information processing
The data of collection are conducted to host data base by the terminal block that chip connects, by software transfer algorithm, analyzes the air regime of current indoor, provide the scoring of AQI hidden danger degree, provide suggestion of living.
The beneficial effect of a kind of Mobile type indoor air quality detector of the present invention and using method thereof: carry multiple sensors, can detect the multiple dusty gas of indoor, and the switching of sensor can be carried out at sustained height rotary head, same position is carried out to the detection of multiple dusty gas, adopt comparatively light straight line leading screw to drive mobile The Cloud Terrace, realize the detection of the air pollution to different laminar flow height; L-type support by arranging makes the indoor that are erected at of instrument stabilizer detect, and when not using, L-type support can be reclaimed, make instrument easier, structure is simple, good stability, and be convenient to mobile, there is good practicality, can achieve the different laminar flow air pollution in indoor complete detection.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of a kind of Mobile type indoor air quality detector of the present invention;
Fig. 2 is the structural representation of The Cloud Terrace;
Fig. 3 is the side view of Fig. 2;
Fig. 4 is a kind of brake rod of Mobile type indoor air quality detector and the syndeton schematic diagram of the 3rd support;
Fig. 5 is the partial structurtes schematic diagram of brake rod;
Fig. 6 is a kind of using state schematic diagram of Mobile type indoor air quality detector;
1-pedestal, 2-first support, 3-connecting rod, 4-leading screw, 5-slide rail, 6-The Cloud Terrace, 7-base, 8-motor, 9-steering wheel, 10-steering wheel shaft collar, 11-rotary-tray, 12-second support, 13-chip stand, 14-chip, 15-terminal block, 16-blade tip, 17-sensor, 18-the 3rd support, the long limit of 19-, 20-minor face, 21-brake rod, 22-first brake disc, 23-first through hole, 24-round boss, 25-second brake disc, 26-second through hole, 27-circular groove, 28-pin, 29-square boss, 30-third through-hole, 31-fourth hole, 32-bolt.
Embodiment:
Below in conjunction with embodiment, the present invention is described in further detail.
According to Fig. 1 ~ Fig. 6, a kind of Mobile type indoor air quality detector provided by the invention, comprise: pedestal 1, pedestal 1 is connected with the first support 2, described first support 2 is door shaped stent, connecting rod 3 is provided with between the two stands of door shaped stent, described connecting rod 3 is added is provided with leading screw 4 and slide rail 5, The Cloud Terrace 6 is erected on leading screw 4 and slide rail 5, The Cloud Terrace 6 can slide up and down along support on slide rail 5, door shaped stent side is provided with the 3rd support 18, 3rd support 18 is L-type support, one end, long limit 19 of L-type support and door shaped stent affixed, the minor face 20 of L-type support and earth surface, for supporting door shaped stent.
Described The Cloud Terrace 6 comprises base 7, base 7 offers threaded hole and slide opening, described leading screw 4 is through threaded hole, slide rail 5 is through slide opening, leading screw 4 one end is connected with motor 8 by shaft coupling, leading screw 4 is rotated and drives The Cloud Terrace 6 to slide on slide rail 5, described motor 8 is direct current generator, base 7 lower end and slide rail 5 are slidably connected, base 7 upper end is provided with steering wheel 9, the output shaft of steering wheel 9 is set with steering wheel shaft collar 10, for expanding transmission range, steering wheel 9 shaft collar is provided with rotary-tray 11, output shaft rotation driven rotary pallet 11 rotates, rotary-tray 11 is made to carry out position conversion, rotary-tray 11 is connected with the second support 12, described second support 12 is cross bracket, the center of cross bracket is provided with chip stand 13, chip stand 13 is provided with chip 14, chip stand 13 both sides are provided with terminal block 15, for grafting data line, the data that chip 14 collects outwards are conducted, four blade tips 16 of cross bracket are separately installed with different types of MQ series sensor, in order to detect multiple dusty gas, sensor 17 is connected by wire with chip 14, to the data that chip 14 transmission detects.
Described door shaped stent side is provided with brake rod 21, the shaft of brake rod 21 is connected with the first brake disc 22, and described first brake disc 22 offers multiple first through hole 23, and the end of brake rod 21 is provided with round boss 24; The end on the long limit 19 of described L-type support is connected with the second brake disc 25, described second brake disc 25 offers multiple second through hole 26, described second through hole 26 is equal with the first through hole 23 radius, the circle centre position of the second brake disc 25 side offers circular groove 27, described circular groove 27 matches with described round boss 24, the second brake disc 25 to be installed on the end of brake rod 21, pin 28 inserts the first through hole 23 and the second through hole 26, carries out block to the second brake disc 25.
The circle centre position of described second brake disc 25 opposite side is convexly equipped with square boss 29, square boss 29 offers third through-hole 30, the end on the long limit 19 of described L-type support is provided with fourth hole 31, described fourth hole 31 is equal with third through-hole 30 radius, bolt 32 inserts third through-hole 30 and fourth hole 31, and the second brake disc 25 is fixed in L-type support end.
Adopt the method that above-mentioned a kind of Mobile type indoor air quality detector detects room air, concrete steps are as follows:
The first step: determine surveyed area and after detecting height, open motor 8, by the driving of motor, The Cloud Terrace 6 is transported to desired location, disable motor 8;
Second step: turn on sensor 17, is opened steering wheel 9, is rotated by the output shaft driven rotary rotary-tray 11 of steering wheel 9, and then be with affixed sensor 17 on moving vane and blade to rotate, at sustained height conversion diverse location, multiple angle is detected, gathers the data of multi-angle;
3rd step: close steering wheel 9, opens motor 8, The Cloud Terrace 6 is transported to differing heights, disable motor 8, opens steering wheel 9, detects according to multiple angles of step 2 to sustained height, gather the data of multi-angle, to differing heights carry out repeated detection after, obtain many groups and detect data;
4th step: information processing
The terminal block 15 that the data of collection are connected by chip 14 is conducted to host data base, by software transfer algorithm, analyzes the air regime of current indoor, provide the scoring of AQI hidden danger degree, provide suggestion of living.
Algorithm described in step 3 is room air detection algorithm, using " Indoor Air Quality standards " GB/T18883-2002 national standard as with reference to standard, mainly chooses formaldehyde, CO, NO and O
3as the main pollution of room air, measure after current constituent of air concentration through sensor, by software grabs data inputting, through algorithm computing, the weight distribution of duty factor, mobility-thickness product and body coefficient when providing respectively, providing a comprehensive index AQI (airqualityindex) is output-index, to live suggestion by providing user after software identification.
The Comprehensive Evaluation of indoor air quality is one and is difficult to linearizing problem, and complicacy is to choose in the quantity of evaluation factor and the quantitative analysis of evaluation factor.
This algorithm is for the index being difficult to quantitative measurement, and such as outer partial factor and human body opposing factor, adopts analytical hierarchy process to carry out comparator matrix.For the index of gas with various concentration for the importance degree of the second level factor, gray scale prediction is adopted to excavate implicit proportion wherein.This is associated with the feature of the large data of urban air pollution.For the value of concentration determination, adopt hidden danger scale, revise by weight ratio, quantitative picks out air quality, finally calculates to obtain the AQI hidden danger degree scoring needed for us, according to AQI classification standard, provides to resident family suggestion of living.
First analytical hierarchy process (AHP) is adopted, the thought of analytic hierarchy process AHP first decomposes challenge by setting up hierarchical structure clearly, and next introduces measure theory, by comparing between two, with the judgement scalarization of relative scale by people, and successively set up judgment matrix.Analytical hierarchy process needs tectonic remnant basin model before using: decision-making level, middle layer (indicator layer), bottom (selection layer); Form grade level; Then construct and contrast matrix between two, carry out consistency check; Finally obtain weight vectors.
Such as: by the subjective sensation of air ambient to health, be set with the division of a grade, here sensation is expressed by quantitative data with regard to taking analytical hierarchy process by we.After judging according to expert mode, we can draw the weight ratio of each level for upper level.
Adopt analytical hierarchy process (AHP) to carry out classification division to indoor air environment, be divided into three grades, concrete division following (as table 1):
Table 1AQI hierarchical level divides
Secondary layer is marked
Wherein j, k are bottom index grading system, and i is parameter subscript, Q
1represent the first order, Q
3represent the third level.
The each index full marks score value specifying first and third grade is 10 grades.For the different difference of unit between eliminating, affect status according to index in its field, provide the scope grading of its correspondence.
By calling Matlab program, input I and II layer scoring comparator matrix, draws shown in each hierarchical relationship weight (as table 2).
Table 2 hierarchical relationship weight
Then, because the harmful gas of different chemical composition is different for the harm of human body, harmfulness also affects by regional simultaneously.But relation is wherein difficult to quantization means.Therefore, gray scale algorithm is adopted to excavate the harm weight of the harmful gas of different chemical composition.
Grey correlation analysis (DegreeofGrayIncidence is called for short DGI), be a branch of gray system theory, application Grey Incidence Analysis is a method be widely accepted to carrying out comprehensive evaluation by the things of various factors and phenomenon from organic conception.
The basic thought of gray relative analysis method determines to compare the degree of association between ordered series of numbers collection and reference sequence according to each similarity degree compared between curve that family of curves that ordered series of numbers collection forms and reference sequence form, and compare ordered series of numbers more similar, its degree of association is larger.
Grey correlation analysis is utilized to carry out the step of comprehensive evaluation as follows:
(1) determine to evaluate female reference hierarchy according to evaluation index, collect the indoor main gene data of high-quality, determine iotave evaluation matrix and reference sequence.By SPSS factorial analysis, here we choose n index of Shenyang City as reference ordered series of numbers.
Suppose the evaluation problem be made up of m object, a n index, represent the desired value of i-th object jth index, iotave evaluation matrix is:
According to evaluation object and index situation, setting reference sequence is:
X
0＝(X
01,X
02,…,X
0j,…,X
0n)；
(2) a grey incidence coefficient formulae discovery jth evaluation index Y is utilized
jwith the correlation coefficient of optimal vector G
Wherein min
imin
j| Y
ij-g
i|, max
imax
j| Y
ij-g
i| be respectively the minimum difference of two-stage and two-stage greatly poor, σ is resolution ratio, and 0< σ <1, generally gets σ=0.5;
The degree size of different pollutant for human health damage is weighed, by local Environmental Protection Agency data, " statistical yearbook ".Mainly choose the urban population in Shenyang urban 2001-2014 year, GDP per capita, death toll, health care expenditures, formaldehyde, NO, CO, O
3pollutant levels are as data analysis source.Adopt grey method must excavate as far as possible different pollutant for human health status impact between the degree of association.Be used as the weight allocation among two-level index thus, be respectively ρ
m;
Secondly, be the difference that the dimension eliminating gas with various is brought, calculate chemical gas harmfulness contamination index, computing formula is as follows:
A certain gas X is checked in by related data
iupper safety limit value be a
i, lethal quantity is b
i, then its gas X
ihidden danger scale p
icomputing formula is
Obtain second level hidden danger scale
Finally, according to table gained weight ratio, grey-relational degree and formula (1) (2) (3), air hidden danger scale is substituted into
q is calculated to obtain in all individual events summation
1, Q
2, Q
3, then by Q
1, Q
2, Q
3, three sues for peace, and obtains AQI general comment score value;
Namely pollutant levels value is established to be respectively p
1, p
2, p
3, p
4, then each pollutant accounts for gross contamination substrate concentration weight is a
1, a
2, a
3, a
4, obtain:
According to the difference (as table 3) of grading system, provide suggestion of living.
Table 3AQI classification standard
| AQI marks | Numerical intervals | Feature | Suggestion |
| 1 grade | 0-20 | High-quality | Can move in |
| 2 grades | 20-50 | Well | Can move in |
| 3 grades | 50-70 | Mediocre | Old man's unsuitable for children is moved in |
| 4 grades | 70-85 | Of poor quality, lethal for a long time | Do not advise moving in immediately |
| 5 grades | 85-100 | Very harmful, the short time is lethal | Never suggestion is moved in |
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of this right.
Claims (10)
1. a Mobile type indoor air quality detector, it is characterized in that: comprising: pedestal, pedestal is connected with the first support, first support is provided with slide rail, The Cloud Terrace and slide rail are slidably connected, pedestal is also provided with motor, driven by motor The Cloud Terrace moves up and down along slide rail, described The Cloud Terrace comprises base, base lower end and slide rail are slidably connected, base upper end is provided with steering wheel, the output shaft of steering wheel is set with rotary-tray, output shaft rotation driven rotary pallet rotates, rotary-tray is connected with the second support, the center of the second support is provided with chip stand, chip stand is provided with chip, chip stand both sides are provided with terminal block, the data collected by chip for grafting data line are outwards conducted, second support stretches out formation blade, blade tip is provided with sensor, sensor is connected by wire with chip, to the data that chip transmission detects.
2. a kind of Mobile type indoor air quality detector according to claim 1, it is characterized in that: described first support is door shaped stent, connecting rod is provided with between the two stands of door shaped stent, described connecting rod is added is provided with leading screw and slide rail, and tripod head frame is located on leading screw and slide rail, the base of described The Cloud Terrace offers threaded hole and slide opening, described leading screw is through threaded hole, slide rail is through slide opening, and leading screw one end connects motor, and screw turns drives The Cloud Terrace to slide on slide rail.
3. a kind of Mobile type indoor air quality detector according to claim 1, is characterized in that: the output shaft of described motor connects leading screw one end by shaft coupling.
4. a kind of Mobile type indoor air quality detector according to claim 1, is characterized in that: described second support is cross bracket, four blade tips of cross bracket are separately installed with sensor.
5. a kind of Mobile type indoor air quality detector according to claim 4, is characterized in that: described sensor is at least a kind of sensor, for detecting a kind of gas content.
6. a kind of Mobile type indoor air quality detector according to claim 1, it is characterized in that: described door shaped stent side is provided with the 3rd support, 3rd support is L-type support, one end, long limit of L-type support and door shaped stent affixed, the minor face of L-type support and earth surface, for supporting door shaped stent.
7. a kind of Mobile type indoor air quality detector according to claim 6, it is characterized in that: described door shaped stent side is provided with brake rod, the shaft of brake rod is connected with the first brake disc, described first brake disc offers multiple first through hole, the end of brake rod is provided with round boss, the end on the long limit of described L-type support is connected with the second brake disc, described second brake disc offers multiple second through hole, described second through hole is equal with the first through hole radius, the circle centre position of the second brake disc side offers circular groove, described circular groove matches with described round boss, the second brake disc to be installed on the end of brake rod, pin inserts the first through hole and the second through hole, block is carried out to the second brake disc.
8. a kind of Mobile type indoor air quality detector according to claim 7, it is characterized in that: the circle centre position of described second brake disc opposite side is convexly equipped with square boss, square boss offers third through-hole, the end on the long limit of described L-type support is provided with fourth hole, described fourth hole is equal with third through-hole radius, bolt inserts third through-hole and fourth hole, and the second brake disc is fixed in L-type support end.
9. a kind of Mobile type indoor air quality detector according to claim 1, is characterized in that: described sensor is MQ series sensor.
10. the method adopting a kind of Mobile type indoor air quality detector according to claim 1 to detect room air, is characterized in that: concrete steps are as follows:
The first step: determine surveyed area and after detecting height, open motor, by the driving of motor, The Cloud Terrace is transported to desired location, disable motor;
Second step: turn on sensor, opens steering wheel, by the output shaft driven rotary support of steering wheel, and then is with sensor rotation affixed on moving vane and blade, at sustained height conversion diverse location, detects, gather the data of multi-angle to multiple angle;
3rd step: close steering wheel, opens motor, The Cloud Terrace is transported to differing heights, disable motor, opens steering wheel, detects according to multiple angles of step 2 to sustained height, gather the data of multi-angle, to differing heights carry out repeated detection after, obtain many groups and detect data;
4th step: information processing
The data of collection are conducted to host data base by the terminal block that chip connects, by software transfer algorithm, analyzes the air regime of current indoor, provide the scoring of AQI hidden danger degree, provide suggestion of living.
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| CN106018690A (en) * | 2016-05-19 | 2016-10-12 | 上海勤煊信息科技有限公司 | Movable air quality detecting and monitoring device for classrooms |
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| CN105486819A (en) * | 2015-12-15 | 2016-04-13 | 东北大学 | Movable indoor air quality detector and use method thereof |
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| CN111198247A (en) * | 2020-01-09 | 2020-05-26 | 青岛哈船道一科技有限公司 | Air detection device for closed cabin |
| CN113820274B (en) * | 2021-08-20 | 2023-06-27 | 中国电子科技集团公司第三十八研究所 | Movable hawser quality testing integrated device |
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| CN109001378A (en) * | 2018-07-27 | 2018-12-14 | 南通朝旭环保科技有限公司 | A kind of environmental pollution monitor device |
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