CN104655535A - PM2.5 detector and alarm method thereof - Google Patents
PM2.5 detector and alarm method thereof Download PDFInfo
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- CN104655535A CN104655535A CN201310594162.8A CN201310594162A CN104655535A CN 104655535 A CN104655535 A CN 104655535A CN 201310594162 A CN201310594162 A CN 201310594162A CN 104655535 A CN104655535 A CN 104655535A
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Abstract
The invention discloses a PM2.5 detector and its alarm method. The alarm method specifically comprises the following steps: a PM2.5 detection sensor detects PM2.5 value of ambient air; a monitoring unit receives the PM2.5 value of the air, compares the received PM2.5 value of the air with the air quality alarm threshold value and judges whether the received PM2.5 value of the air is greater than the air quality alarm threshold value; the monitoring unit sends alarm information to a function module activation unit; the functional module activation unit activates an alarm unit; and the alarm unit gives an alarm signal through a loudspeaker. Through the alarm mechanism, users can immediately understand quality of ambient air, and precautionary measures can be immediately taken when air quality is poor.
Description
Technical field
The present invention relates to a kind of air quality detecting device and method for early warning, particularly relate to and a kind of there is the PM2.5 detecting device of warning function and the alarm method of PM2.5 detecting device.
Background technology
PM2.5 refers to that in air, diameter is less than or equal to the particle of 2.5 microns, also referred to as entering lung particle.Although PM2.5 is the component that in earth atmosphere composition, content is little, it has important impact to air quality and visibility.Compared with thicker Atmospheric particulates, PM2.5 particle diameter is little, is rich in a large amount of poisonous and harmful substances, and the residence time is in an atmosphere grown, fed distance is far away, thus larger on the impact of health and atmosphere quality.
The main source that PM2.5 produces is the residue of the discharge through burning in the processes such as daily generating, commercial production, motor vehicle exhaust emission, mostly containing noxious materials such as heavy metals.Weather scientist and medical expert think, the harm of the haze weather caused by fine particle to health is even larger than sandstorm.The particle that particle diameter is more than 10 microns, outside the nose that can be blocked in people; The particle of particle diameter between 2.5 to 10 microns, can enter the upper respiratory tract, but part excretes by sputum etc., also can be stopped by the fine hair of nasal cavity in addition, relatively little to the health hazard of human body.
The physiological structure of human body determines PM2.5 without any filtration, blocking capability, and PM2.5 is to the progress of the harm of human health along with medical technology, progressively expose the one side of its terror, PM2.5 becomes the carrier of virus and bacterium, for the propagation of respiratory infectious disease is added fuel to the flames.
Along with the understanding that people endanger PM2.5, more and more people starts the numerical value paying close attention to PM2.5 in oneself surrounding environment, to make the precautionary measures such as purification of air in time.But existing PM2.5 pick-up unit just can show the detection data of PM2.5 on machine, market needs can warn people's air quality bad, needs the device taking the precautionary measures, but existing commercially do not exist such device.
Therefore, prior art existing defects, needs further improvement and development.
Summary of the invention
The object of the present invention is to provide and there is the PM2.5 detecting device of warning function and the alarm method of PM2.5 detecting device, so that it is bad to warn people's air quality, need the device taking the precautionary measures.
Technical scheme of the present invention is as follows:
Have the PM2.5 detecting device of warning function, comprise central processing unit, be connected to the PM2.5 detecting sensor on described central processing unit, the numerical value detecting the air PM2.5 drawn is sent to described central processing unit by described PM2.5 detecting sensor; Wherein,
The described PM2.5 detecting device with warning function also comprises the monitoring means be connected on described central processing unit, and the numerical value of the air PM2.5 of reception is sent to described monitoring means by described central processing unit; Described monitoring means stores air quality alarm threshold value; The numerical value of the air PM2.5 of reception compares with air quality alarm threshold value by described monitoring means, and when the numerical value of described air PM2.5 is greater than described air quality alarm threshold value, described monitoring means sends warning message to described function module activation unit;
Described function module activation unit connects central processing unit and alarm unit respectively, and after described function module activation unit receives warning message, activate described alarm unit, described alarm unit sends alerting signal by loudspeaker.
The described PM2.5 detecting device with warning function, wherein, described PM2.5 detecting sensor comprises air sampling pump and dust granules detection module.
The described PM2.5 detecting device with warning function, wherein, also comprise the advertisement playing unit be connected with described function module activation unit, described function module activation unit activates described advertisement playing unit after receiving warning message, and described advertisement playing unit is by display screen and loudspeaker broadcasting advertisement content.
The described PM2.5 detecting device with warning function, wherein, described display screen and loudspeaker are connected on described central processing unit.
The alarm method of PM2.5 detecting device, specifically comprises the following steps:
Steps A, PM2.5 detecting sensor detect the numerical value of the PM2.5 of surrounding air;
The numerical value of step B, monitoring means admission of air PM2.5, and the PM2.5 numerical value of the air of reception is compared with air quality alarm threshold value, judge whether the numerical value of the air PM2.5 received is greater than air quality alarm threshold value; If so, step C is entered;
Step C, described monitoring means send warning message to function module activation unit;
Step D, described function module activation unit activate alarm unit, and described alarm unit sends alerting signal by loudspeaker.
The alarm method of described PM2.5 detecting device, wherein, also comprises after described steps A:
The numerical value of the air PM2.5 of detection is sent to central processing unit by steps A 1, described PM2.5 detecting sensor, and the numerical value of the air PM2.5 of reception is sent to monitoring means by described central processing unit.
The alarm method of described PM2.5 detecting device, wherein, described step D also comprises:
Described function module activation unit activates advertisement playing unit, and described advertisement playing unit is by display screen and loudspeaker broadcasting advertisement content.
Compared with prior art, provided by the invention have the PM2.5 detecting device of warning function and the alarm method of PM2.5 detecting device, judged by monitoring means whether the numerical value of the air PM2.5 detected is greater than same air quality alarm threshold value, when the numerical value of air PM2.5 is greater than air quality alarm threshold value, monitoring means sends warning message to function module activation unit, activate alarm unit by function module activation unit, alarm unit sends alerting signal by loudspeaker again; The present invention, by alarm mechanism, enables user immediately understand the quality condition of surrounding air, immediately takes the precautionary measures when air quality is bad.
Accompanying drawing explanation
Fig. 1 is the illustrative view of functional configuration that the present invention has the PM2.5 detecting device of warning function;
Fig. 2 is the process flow diagram of the alarm method of PM2.5 detecting device of the present invention.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in further detail.
The PM2.5 detecting device 100 with warning function provided by the invention, as shown in Figure 1, comprise central processing unit 110, be connected to the PM2.5 detecting sensor 120 on described central processing unit 110, described PM2.5 detecting sensor 120 is passed through air sampling, to sampling the test of air, drawing the numerical value of air PM2.5, the numerical value detecting the air PM2.5 drawn is sent to described central processing unit 110 by described PM2.5 detecting sensor 120.
The described PM2.5 detecting device 100 with warning function also comprises the monitoring means 130 be connected on described central processing unit 110, the numerical value of the air PM2.5 of reception is sent to described monitoring means 130 by described central processing unit 110, and described monitoring means 130 stores air quality alarm threshold value; The numerical value of the air PM2.5 of reception compares with air quality alarm threshold value by described monitoring means 130, when the numerical value of described air PM2.5 is greater than described air quality alarm threshold value, described monitoring means 130 sends warning message to described function module activation unit 140.
The described PM2.5 detecting device 100 with warning function further also comprises the function module activation unit 140 be connected on described central processing unit 110, and described function module activation unit 140 connects alarm unit 150 and advertisement playing unit 150 respectively; After described function module activation unit 140 receives warning message, activate described alarm unit 150, described alarm unit 150 sends alerting signal by loudspeaker 180; Further, described function module activation unit 140 can also activate described advertisement playing unit 160, and described advertisement playing unit 160 plays corresponding ad content by described display screen 170 and loudspeaker 180.Described advertisement playing unit 160 prestores advertising message, and described advertising message can be changed.
Described display screen 170 and loudspeaker 180 are connected on described central processing unit 110.
Described PM2.5 detecting sensor 120 comprises air sampling pump and dust granules detection module, surrounding air can be sucked sampling pipe by described air sampling pump by described PM2.5 detecting sensor 120, the filter membrane of air in sampling pipe, analyze the dust granules situation on filter membrane again, draw the detection architecture of PM2.5.Described dust granules detection module can adopt the methods such as quartz crystal concussion sedimentation balance method, β rays method or light scattering method to carry out the measuring and calculating of dust granules, does not limit here.
The PM2.5 detecting device with warning function provided by the invention, the numerical value of monitoring means to the air PM2.5 detected is utilized to monitor, when the numerical value superelevation air quality alarm threshold value of air PM2.5, described central processing unit sends warning message to described function module activation unit, and described function module activation unit activates alarm unit and sends alerting signal; The quality condition of the understanding surrounding air that this enables user instant, when air quality is bad, takes the precautionary measures immediately.
The alarm method of PM2.5 detecting device provided by the invention, as shown in Figure 2, comprises the following steps:
Step 201, PM2.5 detecting sensor 120, by air sampling, to the test of sampling air, draw the numerical value of the PM2.5 of PM2.5 detecting device surrounding air.
The numerical value of the air PM2.5 of detection is sent to central processing unit 110 by step 202, described PM2.5 detecting sensor, and the numerical value of the air PM2.5 of reception is sent to monitoring means 130 by described central processing unit 110.
The numerical value of the air PM2.5 of reception compares with air quality alarm threshold value by step 203, described monitoring means 130, judges whether the numerical value of the air PM2.5 received is greater than air quality alarm threshold value.If so, step 204 is entered; If not, described monitoring means 130 maintains the original state, and does not send signal.
Step 204, described monitoring means 130 send warning message to described function module activation unit 140.Preferably, warning message can be sent to described central processing unit 110 by described monitoring means 130, sends to described function module activation unit 140 by described central processing unit 110.
Step 205.
Further, described step 205 can also comprise the following steps:
Described function module activation unit 140 activates advertisement playing unit 160, and described advertisement playing unit 160 is by display screen 170 and loudspeaker 180 broadcasting advertisement content.
The alarm method of PM2.5 detecting device provided by the invention, judged by monitoring means whether the numerical value of the air PM2.5 detected is greater than same air quality alarm threshold value, when the numerical value of air PM2.5 is greater than air quality alarm threshold value, monitoring means sends warning message to function module activation unit, activate alarm unit by function module activation unit, alarm unit sends alerting signal by loudspeaker again; The present invention, by alarm mechanism, enables user immediately understand the quality condition of surrounding air, immediately takes the precautionary measures when air quality is bad.
Should be understood that, the above-mentioned statement for present pre-ferred embodiments is comparatively detailed, and therefore can not think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (7)
1. have the PM2.5 detecting device of warning function, comprise central processing unit, be connected to the PM2.5 detecting sensor on described central processing unit, the numerical value detecting the air PM2.5 drawn is sent to described central processing unit by described PM2.5 detecting sensor; It is characterized in that,
The described PM2.5 detecting device with warning function also comprises the monitoring means be connected on described central processing unit, and the numerical value of the air PM2.5 of reception is sent to described monitoring means by described central processing unit; Described monitoring means stores air quality alarm threshold value; The numerical value of the air PM2.5 of reception compares with air quality alarm threshold value by described monitoring means, and when the numerical value of described air PM2.5 is greater than described air quality alarm threshold value, described monitoring means sends warning message to described function module activation unit;
Described function module activation unit connects central processing unit and alarm unit respectively, and after described function module activation unit receives warning message, activate described alarm unit, described alarm unit sends alerting signal by loudspeaker.
2. the PM2.5 detecting device with warning function according to claim 1, is characterized in that, described PM2.5 detecting sensor comprises air sampling pump and dust granules detection module.
3. the PM2.5 detecting device with warning function according to claim 2, it is characterized in that, also comprise the advertisement playing unit be connected with described function module activation unit, described function module activation unit activates described advertisement playing unit after receiving warning message, and described advertisement playing unit is by display screen and loudspeaker broadcasting advertisement content.
4. the PM2.5 detecting device with warning function according to claim 3, it is characterized in that, described display screen and loudspeaker are connected on described central processing unit.
The alarm method of 5.PM2.5 detecting device, specifically comprises the following steps:
Steps A, PM2.5 detecting sensor detect the numerical value of the PM2.5 of surrounding air;
The numerical value of step B, monitoring means admission of air PM2.5, and the PM2.5 numerical value of the air of reception is compared with air quality alarm threshold value, judge whether the numerical value of the air PM2.5 received is greater than air quality alarm threshold value; If so, step C is entered;
Step C, described monitoring means send warning message to function module activation unit;
Step D, described function module activation unit activate alarm unit, and described alarm unit sends alerting signal by loudspeaker.
6. the alarm method of PM2.5 detecting device according to claim 5, is characterized in that, also comprises after described steps A:
The numerical value of the air PM2.5 of detection is sent to central processing unit by steps A 1, described PM2.5 detecting sensor, and the numerical value of the air PM2.5 of reception is sent to monitoring means by described central processing unit.
7. the alarm method of PM2.5 detecting device according to claim 6, is characterized in that, described step D also comprises:
Described function module activation unit activates advertisement playing unit, and described advertisement playing unit is by display screen and loudspeaker broadcasting advertisement content.
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| CN201310594162.8A CN104655535A (en) | 2013-11-21 | 2013-11-21 | PM2.5 detector and alarm method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112387067A (en) * | 2020-11-23 | 2021-02-23 | 天津市洁净空气质量技术检测有限公司 | Clean air purification device and method for keeping air clean |
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