CN204946273U - A kind of indoor formaldehyde supervisory system based on WiFi - Google Patents

Abstract

The utility model provides an indoor formaldehyde monitoring system based on WiFi, which mainly includes a data acquisition module, a data processing module, a wireless WiFi module and a monitoring host, the data acquisition module includes a plurality of formaldehyde sensors, and the formaldehyde concentration data collected by the data acquisition module is passed After the data processing module is processed, it is uploaded to the monitoring host through the wireless WiFi module. The monitoring host is used to receive and analyze the data sent by the data acquisition module. When the concentration of formaldehyde is high, the alarm device corresponding to the formaldehyde sensor will sound an alarm and display the concentration data. The utility model has a simple structure. By setting a plurality of formaldehyde sensors, it can accurately and effectively detect the formaldehyde concentration in every corner of the room. Effective monitoring of indoor formaldehyde concentration.

Description

A WiFi-based indoor formaldehyde monitoring system

Technical field:

The utility model relates to the field of formaldehyde detection, in particular to an indoor formaldehyde monitoring system based on WiFi.

Background technique:

Formaldehyde is a toxic gas, which widely exists in home decoration materials and endangers people's health. Therefore, the monitoring of formaldehyde is particularly important. In recent years, there are various methods of formaldehyde monitoring on the market. There are formaldehyde self-test boxes , the price is not expensive but the detection data is not accurate. The testing methods used by professional testing companies are precision testing methods, including high-performance liquid chromatography, gas chromatography and spectrophotometry recommended by the World Health Organization. Or a simple assay method, which is mainly used for rapid detection, and its accuracy requirements are not high. With the development of technology, the monitoring of formaldehyde is mainly developed in the direction of real-time response, simplified operation, low power consumption and low cost. At present, some people in China have made instruments for formaldehyde monitoring. They all use foreign electrochemical sensors, that is, to measure the concentration of the detected gas by detecting the color change of the chemical reaction between the gas and the indicator. The cost is relatively high, and , can only be displayed in real time, and users cannot be notified remotely in a timely manner. At the same time, the current monitoring of the indoor environment mainly depends on the monitoring of the environmental indicators of the specific environment by technicians within a certain period of time. Formaldehyde concentration in the area.

Utility model content:

In order to solve the above problems, the utility model provides a simple structure, which can accurately and effectively detect the formaldehyde concentration in each corner of the room, and can transmit the detected formaldehyde concentration signals in each area to the monitoring host in real time, so as to realize the personnel monitoring of the formaldehyde concentration in the room. Technical solution for effective monitoring:

A WiFi-based indoor formaldehyde monitoring system mainly includes a data acquisition module, a data processing module, a wireless WiFi module, and a monitoring host. The data acquisition module includes a plurality of formaldehyde sensors, and the plurality of formaldehyde sensors are mainly the first formaldehyde sensor, the second formaldehyde sensor, the third formaldehyde sensor, and the Nth sensor, N is an integer greater than or equal to 3, the data acquisition module is connected to the data processing module, the data processing module is connected to the monitoring host through the wireless WiFi module, and the monitoring host is respectively connected to multiple alarm devices, display devices, Mobile terminal, mobile terminal is mobile phone, computer.

Preferably, the multiple alarm devices are mainly the first alarm device, the second alarm device, the third alarm device, and the Nth alarm device, N is an integer greater than or equal to 3, and the first alarm device, the second alarm device, the third alarm device The alarm device and the Nth alarm device correspond to the numbers of the first formaldehyde sensor, the second formaldehyde sensor, the third formaldehyde sensor and the Nth sensor respectively.

Preferably, the data processing unit includes a main control chip, a signal conditioning module electrically connected to the main control chip, an A/D conversion module electrically connected to the main control chip, a communication module electrically connected to the main control chip, and a storage module electrically connected to the main control chip , the A/D conversion module is electrically connected to the data acquisition module.

Preferably, the plurality of formaldehyde sensors are TiO2 gas sensitive material sensors, which are rectangular parallelepiped with a size of 3 cm to 6 cm in length, 2 cm to 5 cm in width, and 1 cm to 2 cm in height.

The beneficial effects of the utility model are:

(1) The utility model is equipped with a plurality of formaldehyde sensors, and the formaldehyde sensors are corresponding to a plurality of alarm devices. When the formaldehyde concentration in a certain area of the room is detected to be high, the corresponding alarm device on the monitoring host will send out an alarm sound , so that the indoor personnel can understand and deal with it in time.

(2) The wireless WiFi module configured by the utility model can transmit the detected formaldehyde concentration signals in each area to the monitoring host in real time, so as to realize the effective monitoring of the indoor formaldehyde concentration by personnel.

Description of drawings:

Fig. 1 is a system schematic diagram of the utility model;

Fig. 2 is a schematic diagram of the data processing module of the present invention.

detailed description:

In order to make the purpose, technical solution and advantages of the utility model clearer, the implementation of the utility model will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1 and Figure 2, a WiFi-based indoor formaldehyde monitoring system mainly includes a data acquisition module 1, a data processing module 2, a wireless WiFi module 3, and a monitoring host 4. The data acquisition module 1 is used to collect data, and the data The processing module 2 is used to preprocess the collected data, the wireless WiFi module 3 is used to send the collected data to the monitoring host 4, the data collection module 1 includes a plurality of formaldehyde sensors, and the plurality of formaldehyde sensors are mainly the first formaldehyde sensor 11 , the second formaldehyde sensor 12, the third formaldehyde sensor 13, the Nth sensor, N is an integer greater than or equal to 3, the data acquisition module 1 is connected to the data processing module 2, and the data processing module 2 is connected to the monitoring host 4 through the wireless WiFi module 3 , the monitoring host 4 is respectively connected to a plurality of alarm devices, a display device 5, and a mobile terminal 6. The mobile terminal 6 is a mobile phone 61 and a computer 62. The multiple alarm devices are mainly the first alarm device 7, the second alarm device 8, and the third alarm device. Device 9, the Nth alarm device, N is an integer greater than or equal to 3, and the first alarm device 7, the second alarm device 8, the third alarm device 9, and the Nth alarm device are respectively connected with the first formaldehyde sensor 11 and the second formaldehyde sensor. The numbers of the sensor 12, the third formaldehyde sensor 13, and the Nth sensor are corresponding. The formaldehyde sensor in this embodiment is a TiO2 gas sensitive material sensor, which is a cuboid structure with a size of 3 cm to 6 cm in length, 2 cm to 5 cm in width, and 1 cm to 2 cm in height, which has high sensitivity and responsiveness to organic gases. Fast time, easy mass production, cheap price and so on.

In this embodiment, the data processing unit 2 includes a main control chip 21, a signal conditioning module 22 electrically connected to the main control chip 21, an A/D conversion module 23 electrically connected to the main control chip 21, and a communication module electrically connected to the main control chip 21 24. Electrically connected to the storage module 25 of the main control chip 21, the A/D conversion module 23 is electrically connected to the data acquisition module 1, and the A/D conversion module 23 can convert the input voltage signal into a digital signal with 16-bit precision.

When the utility model works, a plurality of formaldehyde sensors are deployed in every corner of the room, and the formaldehyde concentration signal detected by each formaldehyde sensor is processed by the data processing unit 2, and the analog signal is converted into a digital signal with 16-bit precision, and the signal is transmitted through the wireless WiFi module. 3 is transmitted to the monitoring host 4 for analysis, and the monitoring host 4 sets a safe range value. If the received data exceeds the safe range, the corresponding alarm device will sound an alarm, such as: the first formaldehyde sensor 11 detects that the formaldehyde concentration is high, then the first An alarm device 7 sends out an alarm sound to remind the user, and displays the formaldehyde concentration value on the display device 5. The user finds the corresponding area according to the number of the first alarm device 7 and performs corresponding formaldehyde removal treatment, so that the concentration data slowly returns to the normal value. Keep the indoors in a comfortable state for the human body at all times, adopt their own environmental standards for different areas (kitchen, bedroom, bathroom, etc.) Check the indoor formaldehyde concentration.

The utility model has a simple structure, and a plurality of formaldehyde sensors are arranged, and the formaldehyde sensors are corresponding to a plurality of alarm devices. When the formaldehyde concentration in a certain area of the room is detected to be high, the corresponding alarm device on the monitoring host will send out an alarm sound. , which is convenient for indoor personnel to understand and deal with in a timely manner. At the same time, the configured wireless WiFi module can transmit the detected formaldehyde concentration signals in each area to the monitoring host in real time, so as to realize the effective monitoring of indoor formaldehyde concentration by personnel.

The above-described embodiments are only preferred embodiments of the present utility model, and are not limitations to the technical solutions of the present utility model. As long as the technical solutions that can be realized on the basis of the above-mentioned embodiments without creative work, all should be regarded as falling into the scope of this invention. within the protection scope of utility model patents.

Claims (4)

1. a kind of indoor formaldehyde monitoring system based on WiFi, it is characterized in that: mainly comprise data acquisition module, data processing module, wireless WiFi module and monitoring host computer, described data acquisition module comprises a plurality of formaldehyde sensors, and a plurality of formaldehyde sensors are mainly The first formaldehyde sensor, the second formaldehyde sensor, the third formaldehyde sensor, the Nth sensor, N is an integer greater than or equal to 3, the data acquisition module is connected to the data processing module, and the data processing module passes through the wireless WiFi module The monitoring host is connected, and the monitoring host is respectively connected to a plurality of alarm devices, display devices, and mobile terminals, and the mobile terminals are mobile phones and computers. 2. A kind of indoor formaldehyde monitoring system based on WiFi according to claim 1, is characterized in that: a plurality of alarm devices are mainly the first alarm device, the second alarm device, the third alarm device, the Nth alarm device, N is an integer greater than or equal to 3, and the first alarm device, the second alarm device, the third alarm device, and the Nth alarm device are respectively connected to the first formaldehyde sensor and the second formaldehyde sensor , the number corresponding to the third formaldehyde sensor and the Nth sensor. 3. A kind of indoor formaldehyde monitoring system based on WiFi according to claim 1, characterized in that: the data processing unit comprises a main control chip, a signal conditioning module electrically connected to the main control chip, and a signal conditioning module electrically connected to the main control chip. An A/D conversion module of the control chip, a communication module electrically connected to the main control chip, a storage module electrically connected to the main control chip, and the A/D conversion module is electrically connected to the data acquisition module. 4. A WiFi-based indoor formaldehyde monitoring system according to claim 1, characterized in that: a plurality of said formaldehyde sensors are TiO2 gas sensitive material sensors, which are cuboid structures with a size of 3 cm to 6 cm in length, 2 cm to 5 cm wide and 1 cm to 2 cm high.