Indoor air quality parameter measurement instrument

A technology for indoor air quality and parameter measurement. It is applied in measurement devices, instruments, scientific instruments, etc. It can solve problems such as the reduction of indoor and outdoor air exchange rates, indoor air quality degradation, and poor building syndrome, and achieve good anti-interference and Reliability, portability, low price

Inactive Publication Date: 2018-05-29
周晓萍
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When building a building, people consider energy efficiency and adopt a fully enclosed airtight structure, which has a good heat insulation effect, but reduces indoor ventilation and reduces the rate of indoor a

Method used

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  • Indoor air quality parameter measurement instrument
  • Indoor air quality parameter measurement instrument
  • Indoor air quality parameter measurement instrument

Examples

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Example Embodiment

[0020] The present invention will be further described below with reference to the drawings and embodiments.

[0021] Such as figure 1 , The main control circuit selects STCI2CSA60S2 single-chip microcomputer, its central processing unit is an enhanced 8051 CPU, and its instruction code is fully compatible with the traditional 8051 single-chip microcomputer. It includes all the unit modules needed in data acquisition, processing and control, which can meet the functional requirements of this system. With 8-channel 10-bit precision AD converter, with ISP (in-system programmable) and IAP (in-application programmable) functions, no special programmer is required, 7-channel external interrupt I / O port, support traditional falling edge interrupt and low For interrupts triggered by level, a PCA module that supports rising edge interrupts is newly added to support external wake-up.

[0022] Such as figure 2 , The oxygen sensor amplifier circuit makes certain adjustments to the output si...

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Abstract

The invention relates to an indoor air quality parameter measurement instrument applicable to the household field. The measurement instrument is composed of a master control circuit, an oxygen sensoramplification circuit, a clock circuit, a WIFI module circuit and a power supply circuit. The indoor air quality parameter measurement instrument can meet the needs of detection for sensitivity and accuracy, has the characteristics of compact circuit structure, small volume, simple operation and convenient carrying, can be used for indoor detection and is low in price, improves the work efficiency, and has good anti-interference performance and reliability.

Description

technical field [0001] The invention relates to an indoor air quality parameter measuring instrument, which is suitable for the household field. Background technique [0002] With the continuous improvement of living standards, people's awareness of green and healthy life is also increasing year by year. At the same time, people's demand for indoor air quality testing is also increasing. Nowadays, most interior decoration materials emit formaldehyde and other harmful substances. , coupled with the current high PM2.5 in major cities, have caused serious pollution to indoor air. [0003] Due to the accelerated pace of modern life, people spend more and more time in indoor environments such as living rooms and offices. People spend more than 80%-90% of their time indoors on average, so the quality of indoor air directly affects people's health. When building a building, people consider energy efficiency and adopt a fully enclosed airtight structure, which has a good heat insu...

Claims

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Application Information

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IPC IPC(8): G01N33/00
CPCG01N33/0036
Inventor 周晓萍
Owner 周晓萍
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