Unlock instant, AI-driven research and patent intelligence for your innovation.

A haze detection device and detection method thereof

A detection device and detection method technology, applied in the direction of transmittance measurement, etc., can solve the problems of inappropriate location of pollution sources, omission, pollution severity, etc.

Active Publication Date: 2017-01-11
SICHUAN DINGLIN INFORMATION TECH
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can neither represent the severity of the entire air pollution, but also may be missed (due to regional characteristics, pollutants may not be one of these items detected, and this method will be invalid)
[0017] Second, the air quality index system is not suitable for locating pollution sources
[0039] Therefore, it is feasible, convenient and effective to use the small light characteristics of the atmosphere to determine the concentration of pollutant particles, but so far, there is no effective instrument that can use the above principles to detect haze

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A haze detection device and detection method thereof
  • A haze detection device and detection method thereof
  • A haze detection device and detection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] The smog detection device of this example, such as figure 1 As shown, it includes light emitting module, lens three, beam splitter, lens one, photodetector one, lens two, photodetector two, temperature sensor, humidity sensor and processor connection; wherein, temperature sensor, humidity sensor and processor None shown in the figure. The second lens and the second photodetector form a receiver.

[0101] The light emitting module can be composed of white LED, ultraviolet LED and / or infrared LED, and the spectrum includes visible light and ultraviolet and infrared bands, covering the wavelength range of 200-670nm.

[0102]The light emitting module in this example is a wide-spectrum light source that emits visible light, ultraviolet light and infrared light. The light beam is transformed by lens 3 to convert the light beam into test parallel light; the test parallel light is split by a beam splitter to convert a part of the test parallel light It is transmitted to lens...

Embodiment 2

[0117] The specific implementation of this example is basically the same as that of Example 1, specifically as image 3 As shown, the difference is:

[0118] The receiver in this example consists of a beam splitting device and an array of photodetectors. After the test parallel light passes through the atmosphere to be tested, it is split by the spectroscopic device. The specific performance is that after the test parallel light is divided into beams of various wavelength bands, the beams of each wavelength band are detected by different photodetectors in the photodetector array. , to obtain the power P of the beam in each wavelength band rn , where n is 1, 2, 3.... Each photodetector receives the power of a wavelength band, so that the power of each wavelength band can be obtained. According to the extinction coefficient of each wavelength band, the type of air pollution and the concentration of each can be determined. Finally, the sum of each concentration is The total co...

Embodiment 3

[0122] The specific implementation of this example is basically the same as that of Example 2, specifically as Figure 5 As shown, the difference is:

[0123] The light-receiving module in this example is composed of a light splitting device, a lens four and a CCD. CCD: (Charge-coupledDevice) charge-coupled device, an array composed of multiple detection units (a linear array can be used here)

[0124] After detection by the CCD linear array, different CCD positions detect the optical power of different wavelengths. According to the absorption characteristics of light of different wavelengths, the particle concentration of various pollutants can be calculated separately, and the sum of these pollutant concentrations is the total pollutant concentration.

[0125] Wherein, the light splitting device may be a grating, a prism, or other devices that can be used for light splitting.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an air quality detector, and provides a haze detector for solving the problems in the prior art that the detection of an air quality index system does not represent the severity of the entire air pollution and missing is possible to occur, and the air quality index system is not suitable for locating a source of pollution and has a detection blind region. The haze detector comprises a light emission module, a light beam conversion module, a light splitting module, a first light source power detection module, a second light source power detection module and a processing module. A method for measuring the atmospheric extinction coefficient is adopted to measure the concentration of pollutant particles in the atmosphere; the method is capable of covering all pollutant particles and reflecting the concentration of all the pollutant particles, and no testing blind region exists and all the pollution conditions can be covered; meanwhile, the location of the source of pollution can be determined according to the change of the total pollutant particle concentration. The method is applicable to the haze detection device.

Description

technical field [0001] The invention relates to an air quality detection device, in particular to a haze detection device. Background technique [0002] At present, the air pollution in our country is serious. In many large and medium-sized cities, severe smog has appeared, which has formed a great threat and harm to people's health. [0003] The cause of smog is air pollution, that is, various air pollution emissions. These emissions mainly include SO2, CO, NO2, PM10, PM2.5, Pb, etc. Pollutants enter the atmosphere and interact with each other to form chemical reactions. New pollutants, such as ozone produced by photochemical reactions. But the components of air pollution are far more than the above-mentioned ones, and are much more complex and diverse. [0004] At present, the environmental protection department adopts the international general air quality detection system to detect the degree of air pollution, respectively detect the concentration of SO2, NO2, O3, CO, P...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/59
Inventor 甘志赵国才蔡琴
Owner SICHUAN DINGLIN INFORMATION TECH