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Home environment quality monitoring device based on STM32 single chip microcomputer

A technology of environmental quality and monitoring devices, applied to measuring devices, instruments, etc., can solve problems such as waste, less functions of detectors, and inability to network, and achieve the effects of low cost, cost reduction, and simple operation

Pending Publication Date: 2019-01-15
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the home environment quality monitoring equipment on the market is mostly of the local display type with complete functions, while the detectors that can be viewed at any time generally have fewer functions, can only measure one or two parameters, and cannot be networked
The user cannot choose the parameter he wants to measure. If the user wants to measure a certain parameter, he must purchase all the sensor modules attached to the instrument. The price of the sensor is high, which causes great waste to a certain extent.

Method used

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  • Home environment quality monitoring device based on STM32 single chip microcomputer
  • Home environment quality monitoring device based on STM32 single chip microcomputer
  • Home environment quality monitoring device based on STM32 single chip microcomputer

Examples

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Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the home environment quality monitoring device based on the STM32 single-chip microcomputer of the present embodiment includes a STM32F103 single-chip microcomputer, an environmental quality measurement module, a sensor identification circuit and a Wi-Fi module; connection, the STM32F103 microcontroller is connected to the Wi-Fi module through an IO port. The input end of described sensor identification circuit is provided with the interface that is connected for described each environmental quality measuring module, and the output end of described sensor identification circuit is connected with described STM32F103 single-chip microcomputer by IO port. A button is placed next to the interface of each environmental quality measurement module. After the selected environmental quality measurement module is connected, press the button, and the STM32F103 single-chip microcomputer judges which measurement modules have been connected through the valu...

Embodiment 2

[0034] The difference between this embodiment and the first embodiment is that the home environment quality monitoring device based on the STM32 single-chip microcomputer of this embodiment also includes a carbon monoxide gas sensor, and the carbon monoxide gas sensor is connected to the STM32F103 single-chip microcomputer through the IO port after AD conversion. The carbon monoxide gas sensor includes a heating module 1, a Si substrate 2 arranged above the heating module, a silicon oxide film 3 formed on the Si substrate, a W film 4 arranged on the silicon oxide film, and a silicon oxide film 4 formed on the silicon oxide film. WO3 nanowire film 5 on the W film, SnO2 nanofilm 6 covering the WO3 nanowire film 5, and two Pt electrodes 7 arranged on the SnO2 nanofilm.

[0035] The thickness of the silicon oxide thin film 3 is 400-500 nm, the thickness of the W film 4 is 200-250 nm, and the length of the WO3 nanowire is 1000-1500 nm.

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Abstract

The invention provides a home environment quality monitoring device based on a STM32 single chip microcomputer. The device comprises a STM32F103 single chip microcomputer, an environmental quality measuring module and a Wi-Fi module. Each of the environmental quality measuring modules is respectively connected to the STM32F103 single chip microcomputer through an IO port. The STM32F103 single chipmicrocomputer is connected to the Wi-Fi module through the IO port. According to the use, the AT command is preset in the Wi-Fi module, and then the measurement data is uploaded to China Mobile's OneNet IoT (Internet of Things) platform through the HTTP protocol. Through the APIKey and device coding provided by the IoT platform, the device of the invention can be connected with the product for setting the viewing density value on the loT platform. Through the home environment quality monitoring device based on STM32 single chip microcomputer, personalized, low-cost and distributed measurementcan be realized, and the user can view the air quality of the measuring point in real time through a computer or a mobile phone.

Description

technical field [0001] The invention relates to the field of environmental quality monitoring, in particular to a personalized home environment quality monitoring device that can be viewed online. Background technique [0002] At present, the home environment quality monitoring equipment on the market is mostly of the local display type with complete functions, while the detectors that can be viewed at any time generally have fewer functions, can only measure one or two parameters, and cannot be networked. The user cannot choose the parameter he wants to measure. If the user wants to measure a certain parameter, he must purchase all the sensor modules attached to the instrument. The price of the sensor is high, which causes great waste to a certain extent. [0003] Therefore, how to provide a low-cost home environment quality monitoring device that can be checked anytime and anywhere has become a problem worth solving. Contents of the invention [0004] In view of the abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 林秋岑张冬至郭明勇蔡承轩唐策张旭
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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