Multi-point air quality measuring and controlling system for large space

Abstract

The invention discloses a multi-point air quality measuring and controlling system for a large space. The system comprises a data acquisition module, a data processing module, an upper computer data processing and displaying system, a data communication module and a power supply module; the data acquisition module consists of a plurality of sensor groups; the data processing module comprises a microprocessor, an analog / digital (A / D) conversion module connected with the input end of the microprocessor and used for processing the real-time detection signals output by the sensor groups respectively, and an indicating lamp connected with the output end of the microprocessor and used for indicating the working state of the data processing module; and the data communication module comprises a general packet radio service (GPRS) connected with the microprocessor and GPRS wireless communication modules connected with the upper computer data processing and displaying system, wherein the GPRS wireless communication modules are in wireless communication through a GPRS network. The system is reasonable in design, convenient and fast to operate, high in intellectualization degree, flexible and convenient to use and strong in expandability, has a good using effect, and is convenient to popularize and use.

Description

technical field [0001] The invention belongs to the technical field of air quality monitoring, and in particular relates to a multi-point air quality measurement and regulation system used in a large space. Background technique [0002] Air quality monitoring is the basis of environmental protection, and its purpose is to provide scientific decision-making basis for environmental protection. At present, my country mainly adopts two methods for monitoring the atmospheric environment: one is the traditional manual sampling laboratory analysis method; the other is The online monitoring method adopts the automatic atmospheric environment monitoring imported from abroad. The equipment used in the traditional manual sampling laboratory analysis method is relatively simple. The environmental monitoring personnel place the corresponding gas absorption liquid on the spot to be monitored for a certain period of time, and then take the absorption liquid back to the laboratory with certa...

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Problems solved by technology

The automatic atmospheric environment monitoring station has the characteristics of accurate, sensitive and high-resolution monitoring of the atmospheric environment, but there are also complex structures (composed of multiple devices), expensive (each set costs about 2 million yuan), and localization. Low efficiency (the main equipment is all imported), difficult to maintain (the main equipment can only be shipped abroad for maintenance when it breaks down), high operating costs (the annual operating cost is about 300,000 yuan), and other defects, it is difficult to popularize it on a large scale across the country , now only large cities and their surrounding areas use this method to monitor the atmospheric environment

At the same time, its working environment is harsh, and the main equipment needs to be placed in a constant temperature computer room. It is difficult to meet the requirements on the general environmental monitoring site, and once the site is determined, it is difficult to move again. Monitoring the atmospheric environment in remote areas, factories and mines and other target areas

Especially for the monitoring of sudden air pollution events such as frequent toxic and harmful gas leakage, the automatic air environment monitoring station is even more powerless. In the face of such sudden air pollution events, environmental monitoring personnel have to take measures The method of artificial sampling laboratory analysis at the emergency site is not only harmful to the health and safety of environmental monitoring personnel, but also the monitoring results have a serious lag, and it is difficult to meet the emergency needs of sudden atmospheric environmental pollution incidents.

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