CN213240083U

CN213240083U - Temperature and air pressure compensation formaldehyde detection device based on Internet of things

Info

Publication number: CN213240083U
Application number: CN202022331130.7U
Authority: CN
Inventors: 曾昭源; 段星; 谭阳
Original assignee: Chongqing Electric Power College
Current assignee: Chongqing Electric Power College
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-05-18
Anticipated expiration: 2030-10-19

Abstract

The utility model discloses a temperature and air pressure compensation formaldehyde detection device based on the Internet of things, which comprises a shell and a cover body, wherein an air inlet end and an air outlet end are symmetrically arranged on two sides of the shell, a fan is arranged between the air inlet end and the air outlet end, and the fan is fixedly installed at the bottom of an inner cavity of the shell; still set firmly the controller in the inner chamber of casing with formaldehyde detection sensor, temperature atmospheric pressure detection sensor, WIFI module and the power that the controller is connected, formaldehyde detection sensor and the equal fixed mounting of temperature atmospheric pressure detection sensor correspond in the casing inner chamber on the lateral wall of air inlet end one side, formaldehyde detection sensor is used for detecting the formaldehyde value that gets into casing inner chamber air, temperature atmospheric pressure detection sensor is used for detecting the atmospheric pressure value and the temperature value that get into casing inner chamber air, carries out air cycle's active formaldehyde detection mode through the fan, makes its formaldehyde value that records more approach the average value of surrounding environment formaldehyde, has improved the accuracy that formaldehyde detected.

Description

Temperature and air pressure compensation formaldehyde detection device based on Internet of things

Technical Field

The utility model relates to a formaldehyde detects technical field, especially relates to a temperature atmospheric pressure compensation formaldehyde detection device based on thing networking.

Background

With the rising of life quality of people, the decoration of house also becomes more and more luxurious, and various furniture, paint and ornaments of present all can release harmful substance such as formaldehyde in use, and in order better monitoring the concentration of each harmful substance in the room, house after newly finishing generally will install multi-functional formaldehyde detector and detect each harmful substance.

When the existing multifunctional formaldehyde detector is used, the error of the measured formaldehyde value is large due to the difference of the ambient temperature and the atmospheric pressure of a user, and the formaldehyde value cannot be subjected to environmental compensation, so that the reference value of the measured value is not large. Therefore, according to the needs of the existing society, a formaldehyde detector which can be automatically corrected according to different use environments of users needs to be designed, and then the users can be informed in real time, so that the requirements of the users can be better met.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a can carry out atmospheric pressure, temperature compensation's formaldehyde detection device automatically based on thing networking.

In order to solve the problems, the utility model provides a temperature and air pressure compensation formaldehyde detection device based on the internet of things, which comprises a shell and a cover body covered on the shell, wherein the shell is symmetrically provided with an air inlet end and an air outlet end at two sides, the air inlet end is communicated with the air outlet end, a fan is arranged between the air inlet end and the air outlet end, and the fan is fixedly installed at the bottom of the inner cavity of the shell; still set firmly the circuit board in the inner chamber of casing, be equipped with on the circuit board the controller with formaldehyde detection sensor, temperature atmospheric pressure detection sensor, WIFI module and the power that the controller is connected, formaldehyde detection sensor is used for detecting the formaldehyde value that gets into casing inner chamber air, temperature atmospheric pressure detection sensor is used for detecting the atmospheric pressure value and the temperature value that get into casing inner chamber air, the controller is used for calculating the formaldehyde value after reacing the correction according to formaldehyde value, atmospheric pressure value and the temperature value that detect, the WIFI module is used for realizing the communication between determine module and the outside wireless router, the power is used for supplying power for formaldehyde detection device.

The system further comprises a mobile terminal, wherein the mobile terminal is in communication connection with the controller through a wireless router and is used for remotely checking the air pressure value, the temperature value and the corrected formaldehyde value of the detection area.

Furthermore, a display screen connected with the controller is fixedly arranged on the outer wall of the shell and used for displaying the air pressure value and the temperature value of the detection area and the corrected formaldehyde value in real time.

Furthermore, a plurality of indicator lights connected with the controller are fixedly arranged in the inner cavity of the shell, the indicator lights are used for alarming that the formaldehyde value exceeds the standard, and the indicator lights are arranged on the side wall of the inner cavity of the shell at equal intervals.

Further, still be equipped with shift knob on the outer wall of casing, shift knob with the power is connected for the start-up and the closing of control detection subassembly.

Further, all be equipped with a plurality of ventilation inspection holes on air inlet end and the air-out end, the ventilation inspection hole with the inner chamber intercommunication of casing, just the ventilation inspection hole is the trapezoidal distribution of falling.

The utility model has the advantages that:

(1) a formaldehyde detection sensor and a temperature and air pressure detection sensor are arranged to respectively detect a formaldehyde value, a temperature value and an air pressure value of air flowing through the inner cavity of the shell, and the detected formaldehyde value is compensated through the temperature value and the air pressure value to obtain a corrected formaldehyde value which is closer to an average value of formaldehyde content in the surrounding environment;

(2) an air inlet end and an air outlet end are arranged on two sides of the shell, and ventilation detection holes are arranged on the air inlet end and the air outlet end respectively so as to form a channel for air circulation between the external space and the inner cavity of the shell; meanwhile, the fan is arranged between the air inlet end and the air outlet end, convection of the inner cavity of the shell and the external air is promoted, and the influence of the ambient temperature and the air pressure on the formaldehyde content detection is reduced.

Drawings

Fig. 1 is the utility model relates to a temperature atmospheric pressure compensation formaldehyde detection device's preferred embodiment's based on thing networking schematic structure.

Fig. 2 is a schematic structural view of the inner cavity of the housing in fig. 1.

Fig. 3 is the utility model relates to a temperature atmospheric pressure compensation formaldehyde detection device's system structure picture based on thing networking.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the term "connected" is to be interpreted broadly, for example, it may be mechanically or electrically connected, or it may be connected between two elements, directly or indirectly through an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

As shown in fig. 1-3, for the utility model relates to a temperature atmospheric pressure compensation formaldehyde detection device based on thing networking includes casing 1 and lid 2, lid 2 lid is established on casing 1 in order to form the inner chamber of a casing 1 in casing 1 for the circulation of air. The bilateral symmetry of casing 1 is equipped with air inlet end 11 and air-out end 12, all be equipped with a plurality of ventilation inspection holes 10 on air inlet end 11 and the air-out end 12, ventilation inspection hole 10 with the inner chamber intercommunication of casing 1, just ventilation inspection hole 10 is the trapezoidal distribution of falling to form a circulation of air passageway, external air flows in the inner chamber of casing 1 through air inlet end 11 promptly, then flows out the inner chamber of casing 1 through air-out end 12 again. Be equipped with fan 3 between air inlet end 11 and the air-out end 12, fan 3 fixed mounting be in the bottom of 1 inner chamber of casing to drive the circulation flow of 1 inner chamber of casing and outside air, the convection action of the air of 1 inner chamber of casing and external air can be multiplicable in the rotation of fan 3, improves the flow efficiency of air, improves detection efficiency, and then makes the formaldehyde value that detects more approach the average value of formaldehyde content in the surrounding environment.

Set firmly circuit board 4 in casing 1's the inner chamber, be equipped with controller 40 on circuit board 4 and with formaldehyde detection sensor 41, temperature atmospheric pressure detection sensor 42, WIFI module 43 and the power 44 that controller 40 connects, formaldehyde detection sensor 41 and the equal fixed mounting of temperature atmospheric pressure detection sensor 42 correspond in the casing 1 inner chamber on the lateral wall of the 11 one side of air inlet end, formaldehyde detection sensor 41 is used for detecting the formaldehyde value that gets into the air of casing 1 inner chamber, temperature atmospheric pressure detection sensor 42 is used for detecting atmospheric pressure value and the temperature value that gets into the air of casing 1 inner chamber, and in this embodiment, formaldehyde detection sensor 41 adopts the model to be ZE08-CH2O formaldehyde module, temperature atmospheric pressure detection sensor 42 adopts the model to be MPL3115A 2's pressure sensor. Controller 40 is used for calculating the formaldehyde value after reacing the correction according to formaldehyde value, atmospheric pressure value and the temperature value that detect, in this embodiment, controller 40 adopts the model to be ATMEGA328 PB's singlechip, has burnt the record in this singlechip and has calculated the procedure, and it can calculate the formaldehyde value after the correction according to formaldehyde value, atmospheric pressure value and temperature value, and this singlechip can directly purchase, the utility model discloses a protection main points do not lie in the procedure or the algorithm of this singlechip, and is in whole detection device's overall structure, so although the utility model discloses a singlechip, but do not relate to computer program. WIFI module 43 is used for realizing the communication between detecting element and the outside wireless router, in this embodiment, WIFI module 43 adopts the WIFI module that the model is ESP 8266-01. The power source 44 is used for supplying power to the controller 40, the power supply formaldehyde detection sensor 41, the temperature and air pressure detection sensor 42 and the WIFI module 43.

The outer wall of the shell 1 is fixedly provided with a display screen 5 connected with the controller 40, and the display screen 5 is used for displaying the air pressure value, the temperature value and the corrected formaldehyde value of the detection area in real time.

A plurality of indicator lamps 6 connected with the controller 40 are fixedly arranged in the inner cavity of the shell 1, the indicator lamps 6 are used for alarming that the formaldehyde value exceeds the standard, the indicator lamps 6 are arranged on the side wall of the inner cavity of the shell 1 at equal intervals, and when the formaldehyde value exceeds the set standard, the controller 40 controls the electric quantity of the indicator lamps 6 to remind a user that the formaldehyde content in the current detection area exceeds the standard.

The formaldehyde detection device further comprises a mobile terminal 7, wherein the mobile terminal 7 is in communication connection with the controller 40 through a wireless router, so that a user can conveniently remotely check the air pressure value, the temperature value and the corrected formaldehyde value of the detection area, and in the embodiment, the mobile terminal 7 can be a mobile phone or a tablet computer.

And a switch button 8 is further arranged on the outer wall of the shell 1, and the switch button 8 is connected with the power supply 44 and used for controlling the starting and the closing of the detection assembly.

The utility model discloses a theory of operation:

during the use, place this formaldehyde detection device in the room that needs detected, press shift knob 8 and start formaldehyde detection device, fan 3 begins to rotate, with external air by the ventilation inspection hole 10 suction casing 1 inner chamber of air inlet end 11, the air current that gets into casing 1 inner chamber flows through formaldehyde detection sensor 41 and temperature atmospheric pressure detection sensor 42, formaldehyde detection sensor 41 and temperature atmospheric pressure detection sensor 42 detect formaldehyde value in the air respectively, temperature value and atmospheric pressure value, then flow out casing 1 inner chamber via ventilation inspection hole 10 of air-out end 12, in order to realize the circulation and detect.

When the air flows through the formaldehyde detection sensor 41 and the temperature and air pressure detection sensor 42, the formaldehyde value in the air collected by the formaldehyde detection sensor 41 is transmitted to the controller 40, meanwhile, the temperature value and the air pressure value in the air collected by the temperature and air pressure detection sensor 42 are transmitted to the controller 40, the controller 40 compensates the formaldehyde value according to the collected formaldehyde value, the temperature value and the air pressure value by adopting a formaldehyde content correction formula, and then outputs the compensated formaldehyde value, wherein the formaldehyde content correction formula is as follows:

wherein: mg/m³M is the acquired formaldehyde value for the compensated formaldehyde content; t is the collected temperature value, Pa is the collected air pressure value, and PPm represents hundredOne in ten thousandth.

The formaldehyde value after the correction all shows through display screen 5 with gathering temperature value and atmospheric pressure value, and controller 40 still transmits the temperature value that detects, atmospheric pressure value and the formaldehyde value after the correction for mobile terminal 7 through WIFI module 43 to the user can long-rangely look over the formaldehyde content condition in detection area.

The utility model discloses change traditional passive form formaldehyde and detect, by the convection action that sets up fan 3 at 1 inner chamber of casing increase the air, carry out air circulation's active formaldehyde and detect, the formaldehyde value that makes it record more approaches the average value of surrounding environment formaldehyde, has effectively improved the accuracy that formaldehyde detected, has stronger practicality.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings are directly or indirectly applied to other related technical fields, all the same principle is within the patent protection scope of the present invention.

Claims

1. The utility model provides a temperature atmospheric pressure compensation formaldehyde detection device based on thing networking which characterized in that: the air conditioner comprises a shell and a cover body covered on the shell, wherein an air inlet end and an air outlet end are symmetrically arranged on two sides of the shell, the air inlet end is communicated with the air outlet end, a fan is arranged between the air inlet end and the air outlet end, and the fan is fixedly arranged at the bottom of an inner cavity of the shell; still set firmly the circuit board in the inner chamber of casing, be equipped with on the circuit board the controller with formaldehyde detection sensor, temperature atmospheric pressure detection sensor, WIFI module and the power that the controller is connected, formaldehyde detection sensor is used for detecting the formaldehyde value that gets into casing inner chamber air, temperature atmospheric pressure detection sensor is used for detecting the atmospheric pressure value and the temperature value that get into casing inner chamber air, the controller is used for calculating the formaldehyde value after reacing the correction according to formaldehyde value, atmospheric pressure value and the temperature value that detect, the WIFI module is used for realizing the communication between determine module and the outside wireless router, the power is used for supplying power for formaldehyde detection device.

2. The temperature and air pressure compensation formaldehyde detection device based on the Internet of things according to claim 1, characterized in that: the device further comprises a mobile terminal, wherein the mobile terminal is in communication connection with the controller through a wireless router and is used for remotely checking the air pressure value, the temperature value and the corrected formaldehyde value of the detection area.

3. The temperature and air pressure compensation formaldehyde detection device based on the Internet of things according to claim 1, characterized in that: and a display screen connected with the controller is fixedly arranged on the outer wall of the shell and used for displaying the air pressure value and the temperature value of the detection area and the corrected formaldehyde value in real time.

4. The temperature and air pressure compensation formaldehyde detection device based on the Internet of things according to claim 1, characterized in that: the shell is characterized in that a plurality of indicator lamps connected with the controller are fixedly arranged in the inner cavity of the shell, the indicator lamps are used for alarming that the formaldehyde value exceeds the standard, and the indicator lamps are arranged on the side wall of the inner cavity of the shell at equal intervals.

5. The temperature and air pressure compensation formaldehyde detection device based on the Internet of things according to claim 1, characterized in that: still be equipped with shift knob on the outer wall of casing, shift knob with the power is connected for the start-up and the closing of control detection subassembly.

6. The temperature and air pressure compensation formaldehyde detection device based on the Internet of things according to claim 1, characterized in that: the air inlet end and the air outlet end are provided with a plurality of ventilation detection holes, the ventilation detection holes are communicated with the inner cavity of the shell, and the ventilation detection holes are distributed in an inverted trapezoid shape.