Device and method for acquiring and recording environmental air pollutant transfer wind speed-wind direction data

Abstract

The invention discloses a device and a method for acquiring and recording environmental air pollutant transfer wind speed-wind direction data. The device comprises a module for acquiring wind speed-wind direction transient data, a module for counting various wind speed-wind direction time frames, a module for acquiring pollutant concentration transient data and a module for counting various pollutant concentration time frames. An acquisition input end of the module for acquiring and recording the wind speed-wind direction transient data is connected with a weather instrument, and an output end of the module for acquiring and recording the wind speed-wind direction transient data is connected with the module for counting the various wind speed-wind direction time frames; an acquisition input end of the module for acquiring the pollutant concentration transient data is connected with a monitoring instrument for various pollutants, and an output end of the module for acquiring the pollutant concentration transient data is connected with the module for counting the various pollutant concentration time frames; an output end of the module for counting the various wind speed-wind direction time frames and an output end of the module for counting the various pollutant concentration time frames are connected with a module for recording environment monitoring historical data. The device and the method have the advantage that the original wind speed-wind direction data errors can be eliminated.

Description

technical field [0001] The invention belongs to the technical field of ambient air (atmosphere) monitoring, and in particular relates to an ambient air pollutant transmission wind speed-wind direction data acquisition and recording device and method. Background technique [0002] In order to prevent and control ambient air pollution, my country has established an air pollutant monitoring network with the largest number of automatic monitoring stations in the world. Most of these stations are equipped with weather instruments that continuously measure wind speed-wind direction. However, existing air monitoring stations use data acquisition and recording systems (or software) to mix wind speed-wind direction data belonging to vectors with pollutant concentration data belonging to scalar quantities to calculate the average value of each period; resulting in fallacies and loss of comprehensive analysis Key properties for pollutant transport. Therefore, although the ambient air...

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Problems solved by technology

[0004] (1) The data acquisition and recording system for conventional ambient air monitoring mainly needs to be suitable for the data output characteristics of pollutant monitoring instruments, and collect instantaneous data of all instruments and equipment in a single and long period, usually 30 seconds, which cannot be collected Instantaneous wind speed-wind direction data with sufficient time resolution (enough to represent the actual environment at the site location)

[0005] (2) Similarly, the recording system processes the wind direction and wind speed according to the pollutant concentration (scalar) calculation method, and takes the average value of the instantaneous data in the specified time range as the monitoring results of the conventional 5-minute, 1-hour, 1-day period , which leads to the fallacy of wind speed-wind direction data, and loses the key (vector) attributes for describing and analyzing pollutant transport

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