KR101052630B1 - Real-time scattered dust spill monitoring system - Google Patents

Abstract

The present invention collects the measurement data of meteorological / air quality environmental monitoring station in real time and intelligently identifies the situation in which scattering dust leaks and spreads out of the workplace, and triggers an alarm in real time. A spread alarm system.

According to the present invention, environmental managers can improve the current weather conditions and atmosphere by improving the existing management situation in which scattering dust in the workplace has been determined by sensory function as in the past or the current situation cannot be properly determined by simply measuring data values. Real-time monitoring video screen is provided to scientifically discriminate the concentration level and spatial distribution of pollutants, which greatly improves the accuracy of situation discrimination.

In addition, it calculates the critical frictional wind velocity that actually starts scattering dust, not general wind speed, and determines whether it is generated, and analyzes the wind direction and determines the situation where the scattered dust flows out of the open field storage area and spreads in a specific direction. When scattering dust spills or spreads to the area, comprehensive discrimination information such as various warnings and cautions is provided to enable more efficient environmental management.

Scattering dust, spill spread, critical friction

Description

REAL-TIME DETECTION SYSTEM OF FUGITIVE DUST DIFFUSION}

1 is a block diagram showing a real-time scattering dust spill diffusion monitoring system according to the present invention.

FIG. Is a view showing a software main screen of a real-time scattered dust spill diffusion monitoring system according to the present invention.

Figure 3 is a graph showing the weather / air quality change trend graph of the software of the real-time scattering dust spill diffusion monitoring system according to the present invention.

4A to 4B are diagrams illustrating an example of an alarm issuing by determining the actual scattering dust outflow and spread of the real-time scattering dust spill spread monitoring system according to the present invention.

Figure 5 is a table showing the measurement results according to the Tyler dust particle size inspection process test method of the US Environmental Protection Agency for the yard of the open yard to determine the critical friction wind speed according to the present invention.

The present invention calculates the critical frictional wind velocity in which scattering dust starts to occur by collecting the measurement data of meteorological and air quality environmental measurement stations in real time, and the representative wind velocity of the workplace exceeds this and the representative wind direction of the workplace is directed to the right center region. When the dust concentration observed at the environmental measuring station toward the right center exceeds the preset reference value, it is determined that the scattered dust is spilled and spreaded to the outside, and an alarm is issued to enable immediate response. The present invention relates to an automated real-time scattering dust spreading and spreading alarm system, which transmits the measured data from the meteorological and air quality environmental monitoring stations installed on the site boundary to the monitoring system in real time to determine the occurrence and spread of scattering dust. To provide atmospheric video data By calculating the critical friction wind speed and applying it as a criterion for discrimination, it is possible to immediately respond in terms of environmental management by issuing an alarm when it is determined that the scattered dust actually occurs and the scattered dust is leaked and spread out of the workplace. It relates to a system for providing management information to be made in real time.

As defined by the Ministry of Environment's Atmospheric Conservation Act, scattered dust is "dust directly discharged into the atmosphere without a constant outlet", which is caused by respiratory diseases caused by increased dust concentration and deterioration of the dust, such as dust dome effect and deterioration of equipment In order to prevent damage, the Environmental Regulations stipulates the Dust Dust Generation Project and mandatory appropriate reduction activities in accordance with the Enforcement Decree No. 500 of the Ministry of Environment.

In addition, the Ministry of Environment conducts "Special Inspection of Spring Scattering Dust Occurrence Plants" every spring during the spring season when the construction activity is active. By taking strong administrative measures, such as a list of violators, the Ministry of Environment is committed to improving air quality by reducing scattering dust.

However, unlike dust emitted from stacks, scattering dust is irregularly generated by wind in an open-air workshop without a constant outlet, so scattering dust is detected only by the naked eye. As a result, the occurrence of scattering dust is often not detected, and the determination of the occurrence of scattering dust is often not quantitative based on the subjective judgment of the monitor.

The most innovative management system in the prior art adopts a method of determining that scattered dust can be generated when the wind speed is higher than a certain wind speed by using the wind speed observed from an environmental measuring station located at the site boundary. By specifying empirical or general management criteria in designation, the wind speed at which scattering dust occurs when scattering characteristics according to the characteristics of the open field yard and the correction value due to the difference between the location of the environmental measuring station and the actual workplace is not applied. It is impossible to calculate the exact value of, and in the actual situation, it is necessary to accurately identify the outflow direction that affects the right heart area in addition to the wind speed for effective management.

The present invention receives the real-time measurement data from the meteorological and air quality environmental measurement station installed on the workplace boundary line in the background as described above to provide the environmental manager with the current weather conditions and distribution of specific pollutants on the image screen It enables the administrator to comply with environmental laws and regulations by providing accurate situational information such as safety situation, caution condition and alarm condition by intelligently discriminating spills and spreads of scattering dust. The purpose is to be able to manage the scattering dust generation in real time.

According to the present invention for solving the problems as described above, the real-time scattered dust spill monitoring system according to the present invention is installed on the site boundary line of the workplace, such as an open-air yard where scattered dust is generated, wind direction, wind speed, air pollution Measuring means at a plurality of environmental observation stations for measuring a substance concentration and transmitting the corresponding data; and receiving the transmitted data and displaying the image on a map on a screen in real time, and a graph of time change by the received data. A monitoring system for determining safety, caution, and alarm conditions by comprehensively determining whether the critical friction wind speed and the wind direction range to the right center region and the dust concentration exceeding the reference value of the dust concentration in the right center region are comprehensively displayed on the screen; Characterized in that it comprises a.

Preferably, the monitoring system may be configured to display the wind direction and the wind speed at each measurement position in the direction and length of the vector, respectively, on the map on the screen, and the monitoring system may display the concentration of the air pollutant in a specific color. It can be represented by a circle or a symbol of a specific shape that is set to have a correlation with and size.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

According to the attached FIG. 1, the real-time scattering dust spreading monitoring system according to the present invention includes a plurality of station-side measuring means 10 installed on a site boundary line of a workplace such as an open-air yard where scattering dust is generated, and the station-side. Receives an alarm signal from the monitoring system 20 and the monitoring system 20 connected to the network to perform monitoring by receiving observation data from the measuring means 10 and determines an alarm situation to determine safety, caution and alarm conditions. And an alarm system 30 for issuing an alarm.

Observation station-side measuring means 10 is installed on the site boundary line of the workplace where scattering dust is generated, such as the weather data such as wind direction, wind speed, temperature, and the concentration of air pollutants such as dust, sulfur dioxide, nitrogen dioxide, and ozone. It is configured to transmit the data representing the measured value to the monitoring system 20 in real time, and the monitoring system 20 receives this data to display the current weather situation and the concentration situation for each air pollutant on the screen as shown in FIG. By providing image data along with the measured values, environment managers can make intuitive situation judgment and scientific discrimination.

According to FIG. 2 showing the software main screen of the monitoring system 20 according to the present invention, the meteorological element display window of reference numeral 101 displays the weather data values and the air quality measurement data values observed at each environmental measuring station, such as wind direction and wind speed. Observed weather element values and specific air pollutant concentration values are displayed for each environmental measuring station, and if necessary, by individually selecting the measuring station icon as shown in FIG. 102 (102), the weather during the day as shown in FIG. A new graph screen can be created to analyze the change of the situation and the air pollutant situation.

In the software main screen of FIG. 2, the wind direction and the wind speed are expressed in a vector as shown in FIG. 201 at the measurement position of each measuring station in the observation space that is mapped to observe the current situation in real time with scientific intuition. The wind speed in the direction indicated by the length of the vector allows the environmental manager to easily grasp the current weather conditions and ventilation conditions, and selects various air pollutants measured at the environmental measuring station and displays the concentrations in a specific color as shown in Figure 202. The circle size is represented by the circle, but the size of the circle is proportional to the concentration of air pollutants, so that the environmental manager can provide an image screen for the current air pollutant's spatial distribution and concentration level.

In the main screen of FIG. 2, the environmental manager provides a comprehensive evaluation guideline such as ventilation activation, caution situation, and alarm alert as shown by reference numeral 301 by intelligent discrimination of the current situation along with the current time. Provide scientific judgment data by surveillance system, not subject matter.

FIG. 3 is a graph of recording data of a corresponding day generated when clicking an individual environmental measurement station on the main screen of FIG. 1 (102). The graph shows changes in the wind direction and the wind speed 501 over time and various air pollutants. If the icon set to the number 502 is selected, a time-varying graph of the air pollutant concentration corresponding thereto is outputted, and as shown in the reference number 503, the graph representation can be adjusted according to the user's convenience.

Example

A preferred embodiment of the real-time scattering dust spreading and spreading alarm system according to the present invention is shown in FIG. 4. You will go through a judgment process.

First, the external runoff diffusion of dust is converted to the wind speed observed from each environmental measuring station into the representative wind speed at the representative location of the open-air workshop, and the critical friction at which the converted representative wind speed is determined according to the general properties of the workplace. When the wind speed exceeds a certain time, the generation of scattering dust is started.In this case, the conversion of the representative wind speed is determined by the height from the ground at the representative position of the open-air workshop and the height from the ground of the measuring instrument of the environmental measurement center. From the empirical equation, the wind speed compensation is performed by the height correction and the acceleration or deceleration effect by the nearby feature.

Secondly, the wind direction observed at the environmental measuring station is corrected by the weather statistics analysis method as the wind direction at the representative location of the open-air workplace, and the representative wind direction is calculated and the direction of the bearing range is within the preset wind direction range to the right center region. Therefore, if it lasts for a certain time, it is determined that the possibility of external leakage of scattered dust increases.

Third, when the concentration of dust observed at the environmental measuring station located on the site boundary line in the direction of the right center region is higher than the preset reference value or its concentration rises rapidly with time, I think that is rising.

The final judgment of external dust scattering is defined as satisfying all three conditions, and in this case, an alarm is issued according to the specified method immediately, even though the above three conditions, that is, detection of wind speed exceeding the critical friction wind speed This is true even if this is not the case whether the concentration range of the air direction toward the set right center region and the concentration value of the specific air pollutant observed at the environmental measuring station toward the right center region are higher than the reference set value or are rising with time. If one or two of the conditions are met, the situation is marked as a caution situation where spillage is a concern, and conditions that do not correspond to all three conditions, that is, low dust concentrations and scattering below the reference set value The wind speed is below the critical friction wind speed, which is not a concern. When will indicate that the security situation.

As described above, the preferred embodiments of the present invention have been described in detail, but those skilled in the art may change or change the present invention as many as possible without departing from the spirit and scope of the present invention. It will be appreciated that the true technical protection scope of the present invention should be defined in the claims.

As described above, the present invention improves the existing management situation in which the occurrence of scattering dust in the workplace is determined by the sensory function or the current situation cannot be properly determined by simply measuring data values. It is effective to provide real-time monitoring video screen to scientifically determine the concentration level and spatial distribution of air pollutants.                     

In addition, through the intelligent analysis of the current situation and the analysis of the critical wind speed, it is possible to provide more effective environmental management by providing comprehensive discrimination information such as various warnings and cautions on the spread of external spills of scattering dust.

Claims (5)

delete A plurality of station-side measuring means installed on a site boundary line of a workplace such as an open-air yard where scattering dust is generated and measuring the change in wind direction, wind speed, scattering dust concentration value and time and transmitting corresponding data; After receiving the transmitted data, the wind direction and the wind speed at each measurement position are displayed on the map on the screen in the direction and length of the vector, respectively, in a real-time video screen, and the weather element and scattering dust of the day by the authorized data. Outputs the time-varying graph of density as a circle or symbol of a specific shape that has a correlation between a predetermined color and a size, and outputs an alarm signal or a high possibility of external dust scattering when pre-set external dust scattering conditions are set. Including a monitoring system for outputting a caution signal when determining a situation; In defining the scattering dust external spill situation of the monitoring system, the first condition in which the representative wind speed of the workplace exceeds the critical frictional wind speed, the second condition in which the representative wind direction of the workplace is preset, and the direction of the right heart region Real-time scattered dust spill diffusion monitoring system characterized in that it is determined by the external leakage situation when the dust concentration observed at the environmental measuring station satisfies all three conditions consisting of the third condition that is higher than the preset reference value. 3. The method of claim 2, Real-time scattering dust diffusion monitoring system alarm, if one or more of the above three conditions for determining the outflow of scattering dust fall under two or more conditions system. 3. The method of claim 2, In determining whether the representative wind speed of the workplace exceeds the critical friction wind speed over a predetermined time, the difference between the position between the measurement point and the representative point of the workplace and meteorological conditions Real-time scattered dust diffusion monitoring system characterized by calculating the representative wind speed by correcting the conditional difference, establishing a database of critical friction wind speed according to the characteristics of the yard in the workplace, and applying a separate critical friction wind speed according to the pit situation. . 3. The method of claim 2, In determining whether the representative wind direction of the workplace is directed to the pre-established right center area for a certain period of time, the difference in the position between the measurement point and the representative point of the workplace and meteorological conditions A real-time scattered dust spreading and monitoring system, comprising: calculating a representative wind direction by correcting a difference to determine whether the representative wind direction corresponds to a wind direction angle having a predetermined range set in advance in a right-center region.

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