CN220019375U - Formaldehyde gas detection equipment - Google Patents
Formaldehyde gas detection equipment Download PDFInfo
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- CN220019375U CN220019375U CN202321078334.1U CN202321078334U CN220019375U CN 220019375 U CN220019375 U CN 220019375U CN 202321078334 U CN202321078334 U CN 202321078334U CN 220019375 U CN220019375 U CN 220019375U
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 171
- 238000001514 detection method Methods 0.000 title claims abstract description 12
- 230000003287 optical effect Effects 0.000 claims abstract description 23
- 238000004891 communication Methods 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims description 24
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 20
- 229910052710 silicon Inorganic materials 0.000 claims description 20
- 239000010703 silicon Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 12
- 238000005259 measurement Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000002798 spectrophotometry method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model provides formaldehyde gas detection equipment, which comprises: the optical acquisition device, the signal amplifier, the analog-to-digital converter and the microprocessor are sequentially connected, and the remote communication module is arranged on the microprocessor; an optical collection device configured to collect transmitted light passing through the target solution, convert the transmitted light into a current signal, and output to a signal amplifier; the target solution is a solution which has absorbed formaldehyde; the signal amplifier is configured to amplify the current signal into a voltage signal and transmit the voltage signal to the analog-to-digital converter; the analog-to-digital converter is configured to convert the voltage signal into digital information and send the digital information to the microprocessor; the microprocessor is configured to calculate the formaldehyde concentration in the air according to the digital information; the remote communication module is configured to send the formaldehyde concentration in the air to the intelligent terminal. The device can collect data and process the data simultaneously, does not need an additional computer to process the data, is simple and convenient to operate, has smaller size and is convenient to carry.
Description
Technical Field
The utility model belongs to the technical field of formaldehyde gas detection equipment, and particularly relates to formaldehyde gas detection equipment.
Background
Along with the improvement of the living standard of people, the demands of people on house decoration are becoming higher and higher, and after house decoration, some non-environment-friendly decorative materials can release toxic gases to rooms successively, and among the toxic gases, formaldehyde is the most harmful to the health of people.
National quality regulations that the formaldehyde concentration in primary buildings is 0.08mg/m 3 0.10mg/m in class II buildings 3 And when the concentration of formaldehyde reaches 0.10mg/m 3 When applied, the health of people is obviously hurt. The current formaldehyde standard measurement method comprises an instrument method, wherein the instrument method comprises a gas chromatography method, a high performance liquid chromatography method and an electrochemical method, and the instrument methods can be realized on a portable instrument, but the portable instrument can only collect data, and the collected data can be processed to obtain formaldehyde concentration by an additional computer, so that the operation is complicated; in addition, although the spectrum analyzer can collect data and process data at the same time, the spectrum analyzer is large and not easy to carry.
Disclosure of Invention
In order to overcome the problems in the related art, the embodiment of the utility model provides formaldehyde gas detection equipment which can collect data and process the data simultaneously, does not need an additional computer to process the data, is simple and convenient to operate, has smaller size and is convenient to carry.
The utility model is realized by the following technical scheme:
in a first aspect, an embodiment of the present utility model provides a formaldehyde gas detection apparatus, including: the device comprises an optical acquisition device, a signal amplifier, an analog-to-digital converter, a data processing device and a remote communication module; the data processing device comprises a microprocessor;
the output end of the optical acquisition device is connected with the input end of the signal amplifier, the output end of the signal amplifier is connected with the input end of the analog-to-digital converter, the output end of the analog-to-digital converter is connected with the microprocessor, and the remote communication module is arranged on the microprocessor;
an optical collection device configured to collect transmitted light passing through the target solution, convert the collected transmitted light into a current signal, and output the current signal to the signal amplifier; the target solution is a solution which has absorbed formaldehyde;
the signal amplifier is configured to amplify the current signal into a voltage signal and transmit the voltage signal to the analog-to-digital converter;
the analog-to-digital converter is configured to convert the voltage signal into digital information and send the digital information to the microprocessor;
the microprocessor is configured to calculate the formaldehyde concentration in the air according to the digital information;
the remote communication module is configured to send the formaldehyde concentration in the air to the intelligent terminal.
In one embodiment, the optical acquisition device comprises a square box body, a light source, a cuvette containing a target solution and a silicon photocell; the cuvette is placed in the square box body, the light source is arranged on the first side surface of the square box body, and the silicon photocell is arranged on the second side surface of the square box body; the first side face and the second side face are oppositely arranged on two sides of the square box body.
In one embodiment, a push-pull box cover is arranged above the square box body, a first circular through hole is formed in the first side surface of the square box body, and a second circular through hole is formed in the second side surface of the square box body; the first round through hole is internally provided with a light source, the second round through hole is internally provided with a silicon photocell, the input end of the current signal processing amplifier is connected with the silicon photocell, and the silicon photocell is used for collecting light signals and outputting current signals.
In one embodiment, the square box is made of opaque material.
In one embodiment, the silicon photovoltaic cell is a photoactive cell having a linear relationship between light intensity and current.
In one embodiment, the current signal processing amplifier includes an OPA657 module and the analog-to-digital converter includes an ADS1256 chip.
In one embodiment, the remote communication module comprises a bluetooth module.
In one embodiment, the data processing device further includes a display module and a storage module;
the display module is connected with the microprocessor;
the storage module is connected with the microprocessor.
In one embodiment, the display module is an LCD.
In one embodiment, the memory module includes an SD card, and the SD card is externally connected to the output end of the microprocessor.
Compared with the prior art, the embodiment of the utility model has the beneficial effects that:
according to the embodiment of the utility model, the data is acquired through the optical acquisition device, the signal amplifier, the analog-to-digital converter and the data processing device, and the microprocessor is arranged in the data processing device to directly process the data, so that the data can be acquired and processed simultaneously, additional computer is not needed to process the data, the operation is simple and convenient, and the use of the instrument is more convenient. Through setting up remote communication module on microprocessor, realize remote monitoring formaldehyde concentration, and whole equipment size is less, portable.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a formaldehyde gas detecting apparatus according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a square box according to an embodiment of the present utility model.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present utility model with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in the present description and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
Furthermore, the terms "first," "second," "third," and the like in the description of the present specification and in the appended claims, are used for distinguishing between descriptions and not necessarily for indicating or implying a relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
In combination with the technical problems of the background art, the utility model aims to provide formaldehyde gas monitoring equipment which has high accuracy, stable effect, portability, safety and low cost, can be free from computer control to improve the accuracy and stability of data processing, and can communicate information with an intelligent terminal.
The utility model is described in further detail below with reference to the drawings and the detailed description.
Fig. 1 is a structural diagram of a formaldehyde gas detecting apparatus according to an embodiment of the present utility model, and referring to fig. 1, the formaldehyde gas detecting apparatus includes: an optical acquisition device 100, a signal amplifier 200, an analog-to-digital converter 300, a data processing device 400, and a remote communication module 500; the data processing device 400 comprises a microprocessor 401.
The output end of the optical acquisition device 100 is connected with the input end of the signal amplifier 200, the output end of the signal amplifier 200 is connected with the input end of the analog-to-digital converter 300, the output end of the analog-to-digital converter 300 is connected with the microprocessor 401, and the remote communication module 500 is arranged on the microprocessor 401.
An optical pickup device 100 configured to collect transmitted light passing through a target solution, convert the collected transmitted light into a current signal, and output the current signal to a signal amplifier 200; the target solution is a solution that has absorbed formaldehyde.
The signal amplifier 200 is configured to amplify the current signal into a voltage signal and transmit the voltage signal to the analog-to-digital converter 300.
The analog-to-digital converter 300 is configured to convert the voltage signal into digital information and transmit the digital information to the microprocessor 401.
The microprocessor 401 is configured to calculate the formaldehyde concentration in the air from the digital information.
The remote communication module 500 is configured to transmit the formaldehyde concentration in the air to the smart terminal.
The digital information includes a parameter of transmitted light, a visible spectrophotometry is used to calculate the formaldehyde concentration in the target solution according to the relation between the transmitted light and the incident light, a linear relation between the absorbance and the formaldehyde concentration in the target solution and related calculation parameters are obtained, and a calculation formula of the formaldehyde concentration in air is further used to obtain the formaldehyde concentration in air.
Illustratively, the microprocessor 401 may directly use an embedded STM32 single-chip microcomputer for result computation, such as a wildfire STM32F429-V2 challenger development board. STM32 singlechip pipe feet are more, can satisfy more peripheral hardware and use simultaneously, and other singlechips, for example 51 series singlechip, the pin is less, can't satisfy more peripheral hardware and use simultaneously to the memory is less unable to store more data. Meanwhile, the STM32 singlechip has strong calculation capability, so that the STM32 singlechip is used as the microprocessor 401 of the utility model, the excellent performance of the microprocessor can be exerted, the test requirement is met, and the efficiency and the accuracy of the test process are improved.
The data is collected through the optical collection device, the signal amplifier, the analog-to-digital converter and the data processing device are used for directly processing the data by arranging the microprocessor in the data processing device, so that the data can be collected and processed simultaneously, additional computer is not needed for processing the data, the operation is simple and convenient, and the use of the instrument is more convenient.
Meanwhile, the remote communication module 500 is arranged on the microprocessor 401, so that the formaldehyde concentration can be remotely monitored, communication with a computer or a mobile phone can be realized, the formaldehyde concentration is not easily affected by the environment when being monitored, the result is relatively stable, and the instrument is more convenient to use; the formaldehyde standard measurement is carried out by utilizing the optical acquisition device 100, so that the accuracy of data can be improved, the cost can be reduced, the operation is easy, the whole equipment is small in size and convenient to carry.
In one embodiment, the optical collection device 100 includes a square box, a light source, a cuvette containing a target solution, and a silicon photocell; the cuvette is placed in the square box body, the light source is arranged on the first side surface of the square box body, and the silicon photocell is arranged on the second side surface of the square box body; the first side face and the second side face are oppositely arranged on two sides of the square box body.
Illustratively, the simple optical acquisition device 100 is used for formaldehyde standard measurement, replaces a spectrum analyzer with high cost and large machine size, and greatly reduces the cost while ensuring the accuracy of data.
In one embodiment, referring to fig. 2, a push-pull box cover 1011 is arranged above the square box body 101, a first circular through hole is arranged on a first side 1012 of the square box body 101, and a second circular through hole is arranged on a second side 1013 of the square box body; the first round through hole is internally provided with a light source, the second round through hole is internally provided with a silicon photocell, the input end of the current signal processing amplifier is connected with the silicon photocell, and the silicon photocell is used for collecting light signals and outputting current signals.
In one embodiment, the square box 101 is made of opaque material, so that the inside of the square box is in a completely dark state after the box cover is closed. The push-pull box cover 1011 is convenient for placing the cuvette containing the target solution into the square box body 101, and the operation is simple. The light of the light source is transmitted through the solution contained in the cuvette in the square box body 101, and the transmitted light reaches the silicon photocell and is subjected to photoelectric conversion by the silicon photocell.
In one embodiment, the silicon photocell is a photosensitive cell with a linear relationship between light intensity and current, so as to simplify the calculation relationship, reduce the operation complexity of the microprocessor 401, and increase the operation speed of the microprocessor 401.
The target solution in the cuvette is a solution absorbing formaldehyde, and the concentration of formaldehyde in the solution is calculated by using the relationship between transmitted light and incident light stored in the microprocessor 401, i.e. the principle of a spectrophotometry of light, so as to obtain the concentration of formaldehyde in the air.
In an embodiment, the target solution in the cuvette may be a solution capable of absorbing other gases, so as to measure the concentration of the other gases in the air. Through the solution in the change cell, utilize this optical acquisition device 100 can realize the concentration measurement of multiple gas, easy operation is convenient.
In one embodiment, the current signal processing amplifier includes an OPA657 module and the analog-to-digital converter 300 includes an ADS1256 chip. Illustratively, the OPA657 module better converts current amplification to voltage, particularly by taking advantage of the lower noise that OPA657-IV modules can provide. The analog-to-digital converter 300 is an a/D conversion circuit.
In one embodiment, referring to fig. 2, the data processing apparatus 400 further includes a display module and a storage module. The display module is connected with the microprocessor 401; the memory module is connected to the microprocessor 401.
In one embodiment, the memory module includes an SD card, which may be externally connected to an output terminal of the microprocessor 401.
In one embodiment, the display module is an LCD.
The storage module is connected to the microprocessor 401, and can send the formaldehyde concentration in the air obtained by the microprocessor 401 to the SD card for storage. The display module is also connected to the microprocessor 401, and can display the formaldehyde concentration stored in the SD card by using an LCD liquid crystal display screen, so that the formaldehyde concentration in the air can be displayed intuitively in real time.
In one embodiment, the remote communication module 500 includes a Bluetooth module. The bluetooth module on the microprocessor 401 is matched with bluetooth on a computer or a mobile phone, and then the obtained formaldehyde concentration data is transmitted to the computer or the mobile phone through the bluetooth module.
For example, the remote communication module 500 may be set to a circulation transmission mode, and the formaldehyde concentration in the air obtained by the microprocessor 401 is automatically transmitted to the intelligent terminal at a preset time interval.
Therefore, the data is collected through the optical collection device, the signal amplifier, the analog-to-digital converter and the data processing device, and the microprocessor is arranged in the data processing device to directly process the data, so that the data can be collected and processed simultaneously, and additional computer is not needed to process the data, the operation is simple and convenient, and the use of the instrument is more convenient; meanwhile, the remote communication module is arranged on the microprocessor, so that the formaldehyde concentration can be monitored remotely, communication can be realized with a computer or a mobile phone, the formaldehyde concentration is not easily affected by the environment when being monitored, the result is stable, and the use is convenient; the formaldehyde standard measurement is carried out by utilizing the optical acquisition device, the structure of the optical acquisition device is very simple, the accuracy of data is ensured, the cost is reduced, the whole equipment consists of a simple box body and small chips, and the optical acquisition device is small in size, convenient to carry and easy to operate.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model.
Claims (10)
1. A formaldehyde gas detecting apparatus, comprising: the device comprises an optical acquisition device, a signal amplifier, an analog-to-digital converter, a data processing device and a remote communication module; the data processing device comprises a microprocessor;
the output end of the optical acquisition device is connected with the input end of the signal amplifier, the output end of the signal amplifier is connected with the input end of the analog-to-digital converter, the output end of the analog-to-digital converter is connected with the microprocessor, and the remote communication module is arranged on the microprocessor;
the optical acquisition device is configured to acquire transmitted light passing through a target solution, convert the acquired transmitted light into a current signal, and output the current signal to the signal amplifier; the target solution is a solution which has absorbed formaldehyde;
the signal amplifier is configured to amplify the current signal into a voltage signal and transmit the voltage signal to the analog-to-digital converter;
the analog-to-digital converter is configured to convert the voltage signal into digital information and send the digital information to a microprocessor;
the microprocessor is configured to calculate the formaldehyde concentration in the air according to the digital information;
the remote communication module is configured to send the formaldehyde concentration in the air to a smart terminal.
2. The formaldehyde gas detection apparatus of claim 1, wherein the optical collection device comprises a square box, a light source, a cuvette containing the target solution, and a silicon photocell; the cuvette is placed in the square box body, the light source is arranged on the first side surface of the square box body, and the silicon photocell is arranged on the second side surface of the square box body; the first side face and the second side face are oppositely arranged on two sides of the square box body.
3. The formaldehyde gas detecting apparatus according to claim 2, wherein a push-pull box cover is provided above the square box body, a first circular through hole is provided on a first side surface of the square box body, and a second circular through hole is provided on a second side surface of the square box body; the light source is arranged in the first circular through hole, the silicon photocell is arranged in the second circular through hole, the input end of the current signal processing amplifier is connected with the silicon photocell, and the silicon photocell is used for collecting light signals and outputting current signals.
4. The formaldehyde gas detecting apparatus according to claim 2, wherein the square box body is an opaque material.
5. The formaldehyde gas detecting apparatus according to claim 2, wherein the silicon photocell is a photo-sensitive cell having a linear relation between light intensity and current.
6. The formaldehyde gas detection apparatus of claim 1, wherein the current signal processing amplifier comprises an OPA657 module and the analog-to-digital converter comprises an ADS1256 chip.
7. The formaldehyde gas detecting apparatus according to claim 1, wherein the remote communication module comprises a bluetooth module.
8. The formaldehyde gas detecting apparatus according to any one of claims 1 to 7, wherein the data processing device further includes a display module and a storage module;
the display module is connected with the microprocessor;
the storage module is connected with the microprocessor.
9. The formaldehyde gas detecting apparatus according to claim 8, wherein the display module is an LCD liquid crystal display.
10. The formaldehyde gas detecting apparatus according to claim 8, wherein the storage module includes an SD card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321078334.1U CN220019375U (en) | 2023-05-08 | 2023-05-08 | Formaldehyde gas detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321078334.1U CN220019375U (en) | 2023-05-08 | 2023-05-08 | Formaldehyde gas detection equipment |
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| Publication Number | Publication Date |
|---|---|
| CN220019375U true CN220019375U (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321078334.1U Active CN220019375U (en) | 2023-05-08 | 2023-05-08 | Formaldehyde gas detection equipment |
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| Country | Link |
|---|---|
| CN (1) | CN220019375U (en) |
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2023
- 2023-05-08 CN CN202321078334.1U patent/CN220019375U/en active Active
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