CN116337157B - Indoor environment intelligent monitoring system based on Internet of things - Google Patents
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Abstract
The application relates to the technical field of indoor environment monitoring, and particularly discloses an indoor environment intelligent monitoring system based on the Internet of things.
Description
Technical Field
The application relates to the technical field of indoor environment monitoring, in particular to an indoor environment intelligent monitoring system based on the Internet of things.
Background
In the current society, the time spent by people living and working in the indoor environment is high in proportion, but the indoor environment is very necessary to be strengthened nowadays because of a plurality of hidden dangers of the indoor environment, serious harm to the physical and mental health of people, and various bad living habits of people and the like.
However, current monitoring of indoor environments has the following drawbacks: first, at present indoor environment monitoring mostly adopts the mode of placing environmental monitoring equipment in the room, wherein the quantity of placing of environmental monitoring equipment is basically fixed by indoor space volume, neglect the influence of indoor air mobility to environmental monitoring equipment quantity of placing, make indoor environment have certain variability when indoor air mobility is great, make indoor environment change little when indoor air mobility is less, if only with the quantity of placing of environmental monitoring equipment by indoor space volume determination, can lead to the quantity of placing of environmental monitoring equipment too much or too little, the cost of placing of environmental monitoring equipment is increased easily when too much, there is the hidden danger that can't satisfy environmental monitoring demand with current environmental monitoring equipment quantity of placing when too little, further influence the degree of accuracy of environmental monitoring result.
The second point is that environmental factors affecting the safety of indoor environment are not single but include a plurality of factors such as formaldehyde concentration, CO 2 The concentration, HCHO concentration, TVOC concentration and the like, each environmental factor needs to be monitored by related monitoring equipment, and when the indoor environment is monitored by the environmental monitoring equipment, various sensors need to be placed indoors, so that on one hand, the placement preparation work of the monitoring equipment before monitoring is increased, and the monitoring efficiency is reduced intangibly; on the other hand, the different environment monitoring devices monitor due to different working principlesThe response time is different, so that the environment parameter monitoring is easy to be asynchronous, and the reading of environment monitoring data is not facilitated.
And thirdly, in order to avoid monitoring errors when the environment monitoring equipment is used for indoor environment monitoring, the monitoring equipment is generally used for monitoring once, so that monitoring personnel can collect a large amount of environment data, but other interference factors such as the placement stability of the monitored equipment are not effective, effective environment data are required to be identified from a large amount of environment data for the monitoring personnel, the monitoring task amount is increased, meanwhile, the problem of identification reliability exists due to artificial identification, and the available value of the identification result of the effective environment data is reduced to a certain extent.
Disclosure of Invention
Therefore, an object of the embodiment of the application is to provide an indoor environment intelligent monitoring system based on the internet of things, which effectively solves the problems mentioned in the background art.
In order to achieve the above purpose, the technical scheme of the application is realized as follows: an indoor environment intelligent monitoring system based on the internet of things, comprising: and the target room space volume acquisition module is used for measuring the length, the width and the height of the target room, thereby acquiring the target room volume.
And the air fluidity collection and analysis module is used for uniformly setting a plurality of collection points in the target room and collecting the air flow velocity of each collection point so as to analyze the indoor air fluidity of the target room.
The environment monitoring point layout determining module is used for determining the layout number and the layout positions of the environment monitoring points according to the indoor air fluidity of the target room and the volume of the target room.
The environment parameter monitoring module is used for numbering the laid environment monitoring points, placing indoor environment monitors at each environment monitoring point in the target room, and monitoring the environment parameters of the corresponding environment monitoring points according to the set time interval from the beginning of monitoring.
And the effective environment data identification module is used for comparing the environment parameters of each environment monitoring point at each monitoring moment with each other at adjacent monitoring moment, and identifying the effective environment parameters corresponding to each environment monitoring point.
And the cloud database is used for storing the distribution density of the environment monitoring points corresponding to each air fluidity.
And the indoor environment quality analysis module is used for analyzing the environment quality coefficient corresponding to the target room based on the effective environment parameters corresponding to the environment monitoring points.
The environment monitoring display model construction marking module is used for constructing a target room three-dimensional model according to the length, the width and the height of the target room, and further marking the effective environment parameters corresponding to the environment monitoring points in the target room three-dimensional model.
And the environment monitoring data uploading and displaying module is used for uploading and displaying the marked three-dimensional model of the target room and the environment quality coefficient corresponding to the target room on the user interface.
In an alternative embodiment, the specific setting manner of uniformly setting a plurality of acquisition points in the target room is to divide the target room according to a space gridding manner to obtain each acquisition sub-area, and then take the central point of each acquisition sub-area as the acquisition point.
In an alternative embodiment, the analysis target room indoor air flow analysis process is as follows: and numbering the acquisition points according to a set sequence.
And constructing a two-dimensional coordinate system by taking the serial number sequence of the acquisition points as an abscissa and taking the air flow velocity as an ordinate, marking a plurality of points in the two-dimensional coordinate system according to each acquired air flow velocity to form a target room air flow velocity change curve, and acquiring the slope of the change curve.
Introducing the slope of the change curve into an expressionObtaining the symbolic air flow rate in the target room>Wherein->Air flow rate denoted i-th collection point, i denoted collection point number, +.>N is expressed as the number of acquisition points set in the target room, k is expressed as the slope of the change curve,represented as a set limiting slope.
Comparing the air flow rates of all the collecting points to each other, and screening out the maximum air flow rateAnd minimum air flow +.>And then ∈>Calculating the air flow velocity distribution difference degree corresponding to the target room>。
Substituting the difference between the symbolic air flow velocity in the target room and the air flow velocity distribution corresponding to the target room into an analysis formulaObtaining the air mobility of the indoor air of the target room>Wherein->Expressed as a reference air flow rate, e is expressed as a natural constant.
In an alternative embodiment, the determining the number and location of the environmental monitoring points is described below: and matching the indoor air mobility of the target room with the distribution density of the environmental monitoring points corresponding to each air mobility stored in the cloud database, and matching the distribution density of the environmental monitoring points of the target room.
Utilization formula for combining target room volume with environment monitoring point layout density of target roomAnd obtaining the number of the environmental monitoring points.
And dividing the indoor space of the target room into monitoring subareas according to the arrangement quantity of the environmental monitoring points to obtain a plurality of monitoring subareas.
Counting the number of the collection points contained in each monitoring subarea, recording the numbers of the collection points, comparing the air flow rates of the collection points in each monitoring subarea, and calculating the air flow rate distribution difference degree corresponding to each monitoring subarea according to the air flow rate distribution difference degree calculation mode.
Comparing the air flow velocity distribution difference degree corresponding to each monitoring subarea with a preset value, if the air flow velocity distribution difference degree corresponding to a certain monitoring subarea is not larger than the preset value, taking the central point of the monitoring subarea as the arrangement position of the environmental monitoring points, otherwise, extracting the acquisition point corresponding to the minimum air flow velocity from a plurality of acquisition points contained in the monitoring subarea, and further taking the arrangement position of the acquisition point as the arrangement position of the environmental monitoring points.
In an alternative embodiment, the environmental parameters include formaldehyde concentration, CO 2 Concentration, HCHO concentration, TVOC concentration, and C0 concentration.
In an alternative embodiment, the specific implementation process of identifying the effective environmental parameter corresponding to each environmental monitoring point is as follows: comparing the environmental parameters of each environmental monitoring point at each monitoring time to obtain the comparison value of each environmental monitoring point corresponding to each environmental parameter at each adjacent monitoring timeWherein j is denoted by environmental monitoring point number, +.>T is expressed asMonitoring time number->D is represented as an environmental parameter and d is FC, CC, HC, TC, CI, wherein FC, CC, HC, TC, CI is represented as formaldehyde concentration, CO2 concentration, HCHO concentration, TVOC concentration, C0 concentration, respectively.
Will beSubstitution formulaCounting to obtain the fluctuation degree of the environmental parameters of each environmental monitoring point at each adjacent monitoring moment>Wherein->、、/>、/>、/>Respectively expressed as formaldehyde concentration, HCHO concentration, TVOC concentration, C0 concentration and CO2 concentration contrast values of the j-th environmental monitoring point at the t-1 th and t-th adjacent monitoring moments,、/>、/>、/>、/>respectively expressed as formaldehyde concentration, HCHO concentration, TVOC concentration, C0 concentration and CO2 concentration of the jth environmental monitoring point at the t-1 monitoring moment, wherein R is expressed as a preset constant, and R>2。
And comparing the environmental parameter fluctuation degree of each environmental monitoring point at each adjacent monitoring time with the preset allowable fluctuation degree according to the sequence of the monitoring time, and screening adjacent monitoring time smaller than or equal to the allowable fluctuation degree from the environmental parameter fluctuation degree to serve as the key adjacent monitoring time corresponding to each environmental monitoring point.
And selecting a rear monitoring time from key adjacent monitoring times corresponding to the environment monitoring points, and further taking the environment parameters of the environment monitoring points at the rear monitoring time as effective environment parameters corresponding to the environment monitoring points.
In an alternative embodiment, the specific analysis process of the environmental quality coefficient corresponding to the analysis target room is: and comparing the effective values of the environmental parameters at the environmental monitoring points, and screening the maximum effective value of the environmental parameters from the effective values as the representative value corresponding to the environmental parameters in the target room.
Importing the representative values corresponding to the environmental parameters into a formulaCalculating the environmental quality coefficient corresponding to the target room>In the formula->、/>、/>、/>、/>Respectively expressed as representative values corresponding to the formaldehyde concentration, HCHO concentration, TVOC concentration, C0 concentration and CO2 concentration in the target room,/day->、/>、、/>、/>The formaldehyde concentration, the HCHO concentration, the TVOC concentration, the C0 concentration and the CO2 concentration in the target room are respectively indicated as corresponding proper values.
In an alternative embodiment, the indoor environment pollution area defining module is further included, and is configured to define an indoor environment pollution area according to the effective environmental parameters corresponding to each environmental monitoring point, specifically see the following procedures: and analyzing the effective environmental parameters corresponding to the environmental monitoring points according to the environmental quality coefficient analysis mode corresponding to the target room to obtain the environmental quality coefficient corresponding to the environmental monitoring points.
And comparing the environmental quality coefficient corresponding to each environmental monitoring point with the set ideal environmental quality coefficient, and selecting the environmental monitoring point smaller than the ideal environmental quality coefficient from the environmental quality coefficient as the pollution monitoring point.
Counting the number of pollution monitoring points, and recording the number of the pollution monitoring points, thereby obtaining a monitoring subarea corresponding to the pollution monitoring points.
And combining the monitoring subareas corresponding to the pollution monitoring points to form an indoor environment pollution area.
In an alternative embodiment, the indoor environmental monitor is integrated by a formaldehyde sensor, a TVOC sensor, an HCHO sensor, a C0 sensor, a CO2 sensor.
Compared with the prior art, the application has the following advantages: 1. according to the application, the indoor air mobility of the target room is analyzed by collecting the air flow rate of the target room, and the placement quantity of the environmental monitoring equipment is determined based on the indoor air mobility of the target room and the volume of the target room, so that the accurate and reasonable determination of the placement quantity of the indoor environmental monitoring equipment is realized, the adaptation degree of the placement quantity and the placement requirement of the indoor environmental monitoring equipment is greatly improved, on one hand, the increase rate of the placement cost of the environmental monitoring equipment is effectively reduced, on the other hand, the hidden danger that the placement quantity of the environmental monitoring equipment cannot meet the environmental monitoring requirement is avoided, and the effective support of the placement of the environmental monitoring equipment is provided for the environmental monitoring accuracy.
2. The environment monitor adopted by the indoor environment monitoring is an integrated product of various environment monitoring devices, and the environment monitor can replace the various environment monitoring devices, so that the environment monitoring devices are more convenient and faster to set, the preparation work before monitoring is greatly reduced, the monitoring efficiency is improved to a certain extent, and meanwhile, as one environment monitor can monitor various environment parameters at the same time, the occurrence of the phenomenon of asynchronous monitoring of the environment parameters is avoided to the greatest extent, and the environment monitoring data is simpler and easier to read.
3. According to the application, when a large amount of environmental data is acquired by the environmental monitor, the validity of the environmental data is intelligently and automatically identified according to the change state of the environmental data, and the environmental data is not required to be identified manually, so that the monitoring task amount is reduced, the identification reliability of the effective environmental data is improved, and the availability value of the identification result of the effective monitoring data is improved.
4. The application also increases the demarcation of the indoor environment pollution area based on the environmental quality coefficient of each environmental monitoring point when the effective environmental parameter of each environmental monitoring point is obtained, enriches the additional functions of indoor environment monitoring, can intuitively and vividly show the distribution state of indoor environment pollution to users by demarcating the indoor environment pollution area, provides an imaged and targeted processing azimuth for the subsequent control and regulation of indoor environment pollution, and has good practical value.
5. According to the indoor environment monitoring method and the indoor environment monitoring device, the indoor environment data monitored in the indoor are uploaded and displayed on the user interface, so that the indoor environment data can be more conveniently watched, stored and processed by a user, the learning experience of the user on the indoor environment monitoring result is improved, and the indoor environment monitoring method and the indoor environment monitoring device have the advantage of being more humanized.
Drawings
The application will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the application, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
FIG. 1 is a schematic diagram of a system connection according to the present application.
Fig. 2 is a schematic diagram of the setting of acquisition points in a target room in the present application.
FIG. 3 is a schematic diagram of a target room air flow rate variation curve in the present application.
Reference numerals: a-acquisition sub-area, a-acquisition point.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The application provides an indoor environment intelligent monitoring system based on the Internet of things, which specifically comprises a target room space volume acquisition module, an air fluidity acquisition and analysis module, an environment monitoring point layout determining module, an environment parameter monitoring module, an effective environment data identification module, a cloud database, an indoor environment quality analysis module, an environment monitoring display model construction marking module, an environment monitoring data uploading display module and an indoor environment pollution area demarcation module.
Referring to fig. 1, the connection relationship between the above modules is that the target room space volume acquisition module and the air fluidity acquisition analysis module are both connected with the environmental monitoring point layout determination module, the environmental monitoring point layout determination module is connected with the environmental parameter monitoring module, the environmental parameter monitoring module is connected with the effective environmental data identification module, the effective environmental data identification module is respectively connected with the indoor environmental quality analysis module and the indoor environmental pollution area demarcation module, the target room space volume acquisition module, the effective environmental data identification module and the indoor environmental pollution area demarcation module are all connected with the environmental monitoring display model construction marking module, the indoor environmental quality analysis module and the environmental monitoring display model construction marking module are both connected with the environmental monitoring data uploading display module, and the cloud database is respectively connected with the environmental monitoring point layout determination module and the indoor environmental quality analysis module.
The target room space volume acquisition module is used for measuring the length, the width and the height of a target room, and therefore the target room volume is calculated according to a volume formula.
The air fluidity collection and analysis module is used for uniformly setting a plurality of collection points in the target room and collecting the air flow velocity of each collection point, thereby analyzing the indoor air fluidity of the target room.
In a specific embodiment of the present application, a specific setting manner of uniformly setting a plurality of acquisition points in a target room is to divide the target room according to a spatial gridding manner to obtain each acquisition sub-area, and further, a center point of each acquisition sub-area is taken as an acquisition point, which is shown in fig. 2.
The application operates the collection of the indoor air flow velocity of the target room in a mode of uniformly arranging a plurality of collection points in the room, and the collection mode can fully cover the whole indoor space of the target room, thereby greatly avoiding the unilateral and limited collection range caused by only arranging a single collection point and further ensuring that the collection of the indoor air flow velocity is more real and reliable.
In the above scheme, the analysis process of analyzing the indoor air mobility of the target room is as follows: and numbering the acquisition points according to a set sequence.
And constructing a two-dimensional coordinate system by taking the serial numbers of the acquisition points as the abscissa and the air flow rates as the ordinate, marking a plurality of points in the two-dimensional coordinate system according to the acquired air flow rates to form a target room air flow rate change curve, wherein the change curve slope is obtained by deriving the change curve, as shown in fig. 3.
Introducing the slope of the change curve into an expressionObtaining the symbolic air flow rate in the target room>Wherein->Air flow rate denoted i-th collection point, i denoted collection point number, +.>N is expressed as the number of acquisition points set in the target room, k is expressed as the slope of the change curve,represented as a set limiting slope.
It can be understood that the obtaining of the symbolic air flow rate in the target room is performed by setting a plurality of collection points, so that a plurality of air flow rate data exist, in order to provide convenience for subsequent analysis of the air flow rate in the target room, the symbolic air flow rate value needs to be extracted from the plurality of air flow rate data, the change degree of the air flow rate in the target room is represented by taking the slope of the change curve into consideration when the symbolic air flow rate in the target room is calculated, the average air flow rate in the target room can be taken as a symbolic representation when the change degree of the air flow rate in the target room is not high, the air flow rates of the collection points are indicated to be differentiated when the change degree of the air flow rate in the target room is high, and at the moment, the symbolic air flow rate obtaining is performed by combining the inclination degree of the change curve, so that the accuracy of the symbolic air flow rate in the target room can be greatly improved by carrying out the situation-specific analysis on the symbolic air flow rate in the target room.
Comparing the air flow rates of all the collecting points to each other, and screening out the maximum air flow rateAnd minimum air flow +.>And then ∈>Calculating the air flow velocity distribution difference degree corresponding to the target room>The larger the difference between the maximum air flow rate and the minimum air flow rate, the larger the air flow rate distribution difference degree corresponding to the target room.
Substituting the difference between the symbolic air flow velocity in the target room and the air flow velocity distribution corresponding to the target room into an analysis formulaObtaining the air mobility of the indoor air of the target room>Wherein->Expressed as a reference air flow rate, e is expressed as a natural constant.
According to the method, the indoor air fluidity of the target room is analyzed by integrating the symbolic air flow rate and the air flow rate distribution difference state of the target room, so that the comprehensiveness of analysis is improved to a certain extent, and reliable reference can be provided for subsequent environmental monitoring point arrangement.
The environment monitoring point layout determining module is used for determining the layout quantity and layout positions of the environment monitoring points according to the indoor air fluidity of the target room and the volume of the target room, and specifically comprises the following steps: and matching the indoor air mobility of the target room with the distribution density of the environmental monitoring points corresponding to each air mobility stored in the cloud database, and matching the distribution density of the environmental monitoring points of the target room.
Utilization formula for combining target room volume with environment monitoring point layout density of target roomAnd obtaining the number of the environmental monitoring points.
And dividing the indoor space of the target room into monitoring subareas according to the arrangement quantity of the environmental monitoring points to obtain a plurality of monitoring subareas.
Counting the number of the collection points contained in each monitoring subarea, recording the numbers of the collection points, comparing the air flow rates of the collection points in each monitoring subarea, and calculating the air flow rate distribution difference degree corresponding to each monitoring subarea according to the air flow rate distribution difference degree calculation mode.
Comparing the air flow velocity distribution difference degree corresponding to each monitoring subarea with a preset value, if the air flow velocity distribution difference degree corresponding to a certain monitoring subarea is not larger than the preset value, taking the central point of the monitoring subarea as the arrangement position of the environmental monitoring points, otherwise, extracting the acquisition point corresponding to the minimum air flow velocity from a plurality of acquisition points contained in the monitoring subarea, and further taking the arrangement position of the acquisition point as the arrangement position of the environmental monitoring points.
According to the application, the indoor air mobility of the target room is analyzed by collecting the air flow rate of the target room, and the placement quantity of the environmental monitoring equipment is determined based on the indoor air mobility of the target room and the volume of the target room, so that the accurate and reasonable determination of the placement quantity of the indoor environmental monitoring equipment is realized, the adaptation degree of the placement quantity and the placement requirement of the indoor environmental monitoring equipment is greatly improved, on one hand, the increase rate of the placement cost of the environmental monitoring equipment is effectively reduced, on the other hand, the hidden danger that the placement quantity of the environmental monitoring equipment cannot meet the environmental monitoring requirement is avoided, and the effective support of the placement of the environmental monitoring equipment is provided for the environmental monitoring accuracy.
The environment parameter monitoring module is used for numbering the laid environment monitoring points, and placing indoor environment monitors at each environment monitoring point in the target room, and monitoring the environment parameters of the corresponding environment monitoring points according to the set time interval from the beginning of monitoring.
In one embodiment of the application, the above-mentioned environmental parameters include, but are not limited to, formaldehyde concentration, CO 2 Concentration, HCHO concentration, TVOC concentration, and C0 concentration.
The indoor environment monitor is integrated by a formaldehyde sensor, a TVOC sensor, an HCHO sensor, a C0 sensor and a CO2 sensor.
The environment monitor adopted by the indoor environment monitoring is an integrated product of various environment monitoring devices, and the environment monitor can replace the various environment monitoring devices, so that the environment monitoring devices are more convenient and faster to set, the preparation work before monitoring is greatly reduced, the monitoring efficiency is improved to a certain extent, and meanwhile, as one environment monitor can monitor various environment parameters at the same time, the occurrence of the phenomenon of asynchronous monitoring of the environment parameters is avoided to the greatest extent, and the environment monitoring data is simpler and easier to read.
The effective environment data identification module is used for comparing the environment parameters of each environment monitoring point at each monitoring moment with each other at adjacent monitoring moments, and identifying the effective environment parameters corresponding to each environment monitoring point.
Specifically, preferably, the identification process of the effective environmental parameters is as follows: comparing the environmental parameters of each environmental monitoring point at each monitoring time to obtain the comparison value of each environmental monitoring point corresponding to each environmental parameter at each adjacent monitoring timeWherein j is denoted by environmental monitoring point number, +.>T is denoted as the monitoring time number,d is expressed as an environmental parameterD is FC, CC, HC, TC, CI, wherein FC, CC, HC, TC, CI is expressed as formaldehyde concentration, CO2 concentration, HCHO concentration, TVOC concentration, C0 concentration, respectively.
Will beSubstitution formulaCounting to obtain the fluctuation degree of the environmental parameters of each environmental monitoring point at each adjacent monitoring moment>Wherein->、、/>、/>、/>Respectively expressed as formaldehyde concentration, HCHO concentration, TVOC concentration, C0 concentration and CO2 concentration contrast values of the j-th environmental monitoring point at the t-1 th and t-th adjacent monitoring moments,、/>、/>、/>、/>respectively expressed as the j-th environmental monitoring point at the t-1-th monitoringFormaldehyde concentration, HCHO concentration, TVOC concentration, C0 concentration and CO2 concentration at moment, R is expressed as preset constant, and R>2。
Comparing the environmental parameter fluctuation degree of each environmental monitoring point at each adjacent monitoring time with the preset allowable fluctuation degree according to the sequence of the monitoring time, and screening adjacent monitoring time smaller than or equal to the allowable fluctuation degree from the adjacent monitoring time as a key adjacent monitoring time corresponding to each environmental monitoring point, wherein the key adjacent monitoring time refers to the forefront adjacent monitoring time smaller than or equal to the allowable fluctuation degree, and the situation that a plurality of adjacent monitoring time exist.
And selecting a rear monitoring time from key adjacent monitoring times corresponding to the environment monitoring points, and further taking the environment parameters of the environment monitoring points at the rear monitoring time as effective environment parameters corresponding to the environment monitoring points.
For example, assume that the critical adjacent monitoring time instant is 9:20-9:25, then at 9:25 as effective environmental parameters, since the environmental parameters at the later monitoring moments are more stable with less fluctuation of the environmental parameters at the critical adjacent monitoring moments.
The application recognizes the effective environmental parameters in the target room, and considers that the monitored environmental parameters have certain fluctuation in the early stage when being interfered by the setting of an environmental monitor or other factors, the environmental conditions in the target room are difficult to truly and objectively reflect, and the monitored environmental parameters tend to be stable after the fluctuation is eliminated, and the environmental parameters can truly and objectively reflect the environmental conditions in the target room, so that the application is more effective.
According to the application, when a large amount of environmental data is acquired by the environmental monitor, the change states among the environmental data are analyzed, so that the effectiveness of the environmental data is intelligently and automatically identified, the identification is not needed manually, the monitoring task amount is reduced, the identification reliability of the effective environmental data is improved, and the improvement of the available value of the identification result of the effective monitoring data is facilitated.
The cloud database is used for storing the distribution density of the environmental monitoring points corresponding to the air fluidity and storing the proper values corresponding to the formaldehyde concentration, the HCHO concentration, the TVOC concentration, the C0 concentration and the CO2 concentration in unit space volume.
The indoor environment quality analysis module is used for analyzing the environment quality coefficient corresponding to the target room based on the effective environment parameters corresponding to the environment monitoring points, and the specific analysis process is as follows: and comparing the effective values of the environmental parameters at the environmental monitoring points, and screening the maximum effective value of the environmental parameters from the effective values as the representative value corresponding to the environmental parameters in the target room.
Importing the representative values corresponding to the environmental parameters into a formulaCalculating the environmental quality coefficient corresponding to the target room>In the formula->、/>、/>、/>、/>Respectively expressed as representative values corresponding to the formaldehyde concentration, HCHO concentration, TVOC concentration, C0 concentration and CO2 concentration in the target room,/day->、/>、、/>、/>The method is respectively expressed as proper values corresponding to formaldehyde concentration, HCHO concentration, TVOC concentration, C0 concentration and CO2 concentration in a target room, wherein the representative values of various environmental parameters in the target room are closer to the proper values of the corresponding environmental parameters, and the environmental quality coefficient corresponding to the target room is larger, so that the environmental quality corresponding to the target room is more suitable for life of people.
In the above-described preferred embodiments, the present application provides,、/>、/>、/>、/>the corresponding specific acquisition mode is as follows: and extracting proper values corresponding to the formaldehyde concentration, the HCHO concentration, the TVOC concentration, the C0 concentration and the CO2 concentration in unit space volume from the cloud database.
Multiplying the target room volume by proper values corresponding to formaldehyde concentration, HCHO concentration, TVOC concentration, C0 concentration and CO2 concentration in unit space volume respectively to obtain proper values corresponding to formaldehyde concentration, HCHO concentration, TVOC concentration, C0 concentration and CO2 concentration in the target room.
The indoor environment pollution area demarcation module is used for demarcating an indoor environment pollution area according to the effective environment parameters corresponding to each environment monitoring point, and the specific process is as follows: and analyzing the effective environmental parameters corresponding to the environmental monitoring points according to the environmental quality coefficient analysis mode corresponding to the target room to obtain the environmental quality coefficient corresponding to the environmental monitoring points.
And comparing the environmental quality coefficient corresponding to each environmental monitoring point with the set ideal environmental quality coefficient, and selecting the environmental monitoring point smaller than the ideal environmental quality coefficient from the environmental quality coefficient as the pollution monitoring point.
Counting the number of pollution monitoring points, and recording the number of the pollution monitoring points, thereby obtaining a monitoring subarea corresponding to the pollution monitoring points.
And combining the monitoring subareas corresponding to the pollution monitoring points to form an indoor environment pollution area.
The application also increases the demarcation of the indoor environment pollution area based on the environmental quality coefficient of each environmental monitoring point when the effective environmental parameter of each environmental monitoring point is obtained, enriches the additional functions of indoor environment monitoring, can intuitively and vividly show the distribution state of indoor environment pollution to users by demarcating the indoor environment pollution area, provides an imaged and targeted processing azimuth for the subsequent control and regulation of indoor environment pollution, and has good practical value.
The environment monitoring display model construction marking module is used for constructing a target room three-dimensional model according to the length, the width and the height of the target room, so that effective environment parameters corresponding to all environment monitoring points are marked in the target room three-dimensional model, and meanwhile, a delimited indoor environment pollution area is marked in the target room three-dimensional model.
And the environment monitoring data uploading and displaying module is used for uploading and displaying the marked three-dimensional model of the target room and the environment quality coefficient corresponding to the target room on a user interface.
According to the indoor environment monitoring method and the indoor environment monitoring device, the indoor environment data monitored in the indoor are uploaded and displayed on the user interface, so that the indoor environment data can be more conveniently watched, stored and processed by a user, the learning experience of the user on the indoor environment monitoring result is improved, and the indoor environment monitoring method and the indoor environment monitoring device have the advantage of being more humanized.
The foregoing is merely illustrative and explanatory of the application, as various modifications and additions may be made to the specific embodiments described, or similar arrangements may be substituted by those skilled in the art, without departing from the structure or beyond the scope of the application as defined in the claims.
Claims (8)
1. Indoor environment intelligent monitoring system based on thing networking, its characterized in that includes:
the target room space volume acquisition module is used for measuring the length, the width and the height of a target room, thereby acquiring the target room volume;
the air fluidity collection and analysis module is used for uniformly setting a plurality of collection points in the target room and collecting the air flow velocity of each collection point so as to analyze the indoor air fluidity of the target room;
the analysis process of the indoor air mobility of the analysis target room is as follows:
numbering all the acquisition points according to a set sequence;
constructing a two-dimensional coordinate system by taking the serial number sequence of the acquisition points as an abscissa and taking the air flow rate as an ordinate, marking a plurality of points in the two-dimensional coordinate system according to each acquired air flow rate to form a target room air flow rate change curve, and acquiring the slope of the change curve;
introducing the slope of the change curve into an expressionObtaining the symbolic air flow rate in the target room>Wherein->Air flow rate denoted i-th collection point, i denoted collection point number, +.>N is expressed as the number of acquisition points set in the target room, k is expressed as the slope of the change curve, +.>Represented as a set limiting slope;
comparing the air flow rates of all the collecting points to each other, and screening out the maximum air flow rateAnd minimum air flow +.>And then ∈>Calculating the air flow velocity distribution difference degree corresponding to the target room>；
Substituting the difference between the symbolic air flow velocity in the target room and the air flow velocity distribution corresponding to the target room into an analysis formulaObtaining the air mobility of the indoor air of the target room>Wherein->Expressed as a reference air flow rate, e expressed as a natural constant;
the environment monitoring point layout determining module is used for determining the layout number and the layout positions of the environment monitoring points according to the indoor air fluidity of the target room and the volume of the target room;
the environment parameter monitoring module is used for numbering the laid environment monitoring points, placing indoor environment monitors at each environment monitoring point in the target room, and monitoring environment parameters of the corresponding environment monitoring points according to a set time interval from the beginning of monitoring;
the effective environment data identification module is used for comparing the environment parameters of each environment monitoring point at each monitoring moment with each other at adjacent monitoring moment, and identifying the effective environment parameters corresponding to each environment monitoring point;
the cloud database is used for storing the distribution density of the environmental monitoring points corresponding to each air fluidity;
the indoor environment quality analysis module is used for analyzing the environment quality coefficient corresponding to the target room based on the effective environment parameters corresponding to the environment monitoring points;
the environment monitoring display model construction marking module is used for constructing a target room three-dimensional model according to the length, the width and the height of the target room, and further marking the effective environment parameters corresponding to the environment monitoring points in the target room three-dimensional model;
and the environment monitoring data uploading and displaying module is used for uploading and displaying the marked three-dimensional model of the target room and the environment quality coefficient corresponding to the target room on the user interface.
2. The intelligent indoor environment monitoring system based on the internet of things according to claim 1, wherein: the specific setting mode of uniformly setting a plurality of acquisition points in the target room is to divide the target room according to a space gridding mode to obtain each acquisition subarea, and then the center point of each acquisition subarea is taken as the acquisition point.
3. The intelligent indoor environment monitoring system based on the internet of things according to claim 1, wherein: the number and positions of the environmental monitoring points are determined as follows:
matching the indoor air mobility of the target room with the distribution density of the environmental monitoring points corresponding to each air mobility stored in the cloud database, and matching the distribution density of the environmental monitoring points of the target room;
utilization formula for combining target room volume with environment monitoring point layout density of target roomObtaining the number of the environmental monitoring points;
dividing the indoor space of the target room into monitoring subareas according to the arrangement quantity of the environmental monitoring points to obtain a plurality of monitoring subareas;
counting the number of the collection points contained in each monitoring subarea, recording the numbers of the collection points, comparing the air flow rates of the collection points in each monitoring subarea, and calculating the air flow rate distribution difference degree corresponding to each monitoring subarea according to the air flow rate distribution difference degree calculation mode;
comparing the air flow velocity distribution difference degree corresponding to each monitoring subarea with a preset value, if the air flow velocity distribution difference degree corresponding to a certain monitoring subarea is not larger than the preset value, taking the central point of the monitoring subarea as the arrangement position of the environmental monitoring points, otherwise, extracting the acquisition point corresponding to the minimum air flow velocity from a plurality of acquisition points contained in the monitoring subarea, and further taking the arrangement position of the acquisition point as the arrangement position of the environmental monitoring points.
4. The intelligent indoor environment monitoring system based on the internet of things according to claim 1, wherein: the environmental parameters include formaldehyde concentration, CO 2 Concentration, HCHO concentration, TVOC concentration, and C0 concentration.
5. The intelligent indoor environment monitoring system based on the internet of things as set forth in claim 4, wherein: the specific implementation process of the effective environmental parameters corresponding to the identified environmental monitoring points is as follows:
comparing the environmental parameters of each environmental monitoring point at each monitoring time to obtain the comparison value of each environmental monitoring point corresponding to each environmental parameter at each adjacent monitoring timeWherein j is denoted by environmental monitoring point number, +.>T is denoted as monitoring time number, +.>D is expressed asEnvironmental parameter, d is FC, CC, HC, TC, CI, wherein FC, CC, HC, TC, CI is expressed as formaldehyde concentration, CO2 concentration, HCHO concentration, TVOC concentration, C0 concentration, respectively;
will beSubstitution formulaCounting to obtain the fluctuation degree of the environmental parameters of each environmental monitoring point at each adjacent monitoring moment>Wherein->、、/>、/>、/>Respectively expressed as formaldehyde concentration, HCHO concentration, TVOC concentration, C0 concentration and CO2 concentration contrast values of the j-th environmental monitoring point at the t-1 th and t-th adjacent monitoring moments,、/>、/>、/>、/>respectively expressed as formaldehyde concentration, HCHO concentration, TVOC concentration, C0 concentration and CO2 concentration of the jth environmental monitoring point at the t-1 monitoring moment, wherein R is expressed as a preset constant, and R>2；
Comparing the environmental parameter fluctuation degree of each environmental monitoring point at each adjacent monitoring time with the preset allowable fluctuation degree according to the sequence of the monitoring time, and screening adjacent monitoring time smaller than or equal to the allowable fluctuation degree from the adjacent monitoring time as a key adjacent monitoring time corresponding to each environmental monitoring point;
and selecting a rear monitoring time from key adjacent monitoring times corresponding to the environment monitoring points, and further taking the environment parameters of the environment monitoring points at the rear monitoring time as effective environment parameters corresponding to the environment monitoring points.
6. The intelligent indoor environment monitoring system based on the internet of things according to claim 5, wherein: the specific analysis process of the environmental quality coefficient corresponding to the analysis target room comprises the following steps:
comparing the effective values of the environmental parameters at the environmental monitoring points, and screening the maximum effective value of the environmental parameters from the effective values as the representative value corresponding to the environmental parameters in the target room;
importing the representative values corresponding to the environmental parameters into a formulaCalculating the environmental quality coefficient corresponding to the target room>In the formula->、/>、/>、/>、/>Respectively expressed as representative values corresponding to the formaldehyde concentration, HCHO concentration, TVOC concentration, C0 concentration and CO2 concentration in the target room,/day->、/>、、/>、/>The formaldehyde concentration, the HCHO concentration, the TVOC concentration, the C0 concentration and the CO2 concentration in the target room are respectively indicated as corresponding proper values.
7. The intelligent indoor environment monitoring system based on the internet of things according to claim 1, wherein: the indoor environment pollution area defining module is used for defining an indoor environment pollution area according to the effective environment parameters corresponding to the environment monitoring points, and the method specifically comprises the following steps:
analyzing the effective environmental parameters corresponding to the environmental monitoring points according to the environmental quality coefficient analysis mode corresponding to the target room to obtain the environmental quality coefficients corresponding to the environmental monitoring points;
comparing the environmental quality coefficient corresponding to each environmental monitoring point with the set ideal environmental quality coefficient, and selecting an environmental monitoring point smaller than the ideal environmental quality coefficient from the environmental quality coefficients as a pollution monitoring point;
counting the number of pollution monitoring points, and recording the number of the pollution monitoring points, thereby obtaining a monitoring subarea corresponding to the pollution monitoring points;
and combining the monitoring subareas corresponding to the pollution monitoring points to form an indoor environment pollution area.
8. The intelligent indoor environment monitoring system based on the internet of things according to claim 1, wherein: the indoor environment monitor is integrated by formaldehyde sensor, TVOC sensor, HCHO sensor, C0 sensor and CO2 sensor.
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