Research And Design Of Monitoring System Of Dust Particles

Rapid industrial development on the one hand to promote the prosperity and progress of the economy, it also brings undeniable environmental hazards. Especially in recent years, more and more dust pollution is widespread concern in the community. Therefore, the study of efficient and reliable dust monitoring methods, as well as the distribution and variation of atmospheric dust control, for the protection of the environment, prevention of diseases has important significance.Dust monitoring methods are commonly used sampling and non-sampling method. The biggest advantage is that it’s sampling method measuring principle is simple, but the implementation process is more complicated, and therefore it is not suitable to deal with real-time online measurement, rather than the sampling method can measure distances in real time online, so in recent years has been the non-sampling trends. Among them, the non-sampling measurement of optical measurement method is more prominent. As the light transmission method only when the dust concentration in the larger high accuracy, so now most people using light scattering method for measurement. Light scattering method in the actual measurement rarely affected by external factors, in addition, its accuracy is still relatively high, to achieve real-time monitoring of dust, so the light scattering method has a more broad application prospects.This paper is a comprehensive analysis of all dust monitoring at home and abroad on the basis of the status quo, the establishment of a program to measure the light scattering method, designed for efficient dust monitoring system based MIE theory. The system uses the ARM Cortex-M3core-based high-performance, low-cost, low-power STM32embedded microprocessor, through the acquisition of real-time signal processing and data display, real-time indicators reflect the current dust concentration, at the same time, the system built-sampling filter which can be completed calibration and measurement K values independently in the absence of a standard filter weighing instrument case Experimental data show that the low detection limit of the measuring system, high sensitivity, good reliability, measured data can serve as a useful reference, you can give people more accurate and effective information, while protecting the environment also has a larger significance.Rapid industrial development on the one hand to promote the prosperity and progress of the economy, it also brings undeniable environmental hazards. Especially in recent years, more and more dust pollution is widespread concern in the community. Therefore, the study of efficient and reliable dust monitoring methods, as well as the distribution and variation of atmospheric dust control, for the protection of the environment, such as the prevention of the occurrence of pneumoconiosis has very important significance. This paper is a comprehensive analysis of all dust monitoring at home and abroad on the basis of the status quo, the establishment of a program to measure the light scattering method, designed for efficient dust monitoring system based MIE theory. The system uses the ARM Cortex-M3core-based high-performance, low-cost low-power STM32embedded microprocessor, through the acquisition of real-time signal processing and data display, real-time indicators reflect the current dust concentration, at the same time, the system built-sampling filter which can be completed calibration and measurement K values independently in the absence of a standard filter weighing instrument case. Experimental data show that the low detection limit of the measuring system, high sensitivity, good reliability, measured data can serve as a useful reference, you can give people more accurate and effective information, while protecting the environment also has a larger significance.