A construction engineering environmental safety monitoring system

Abstract

The present invention discloses a construction engineering environmental safety monitoring system, which relates to the field of air environment technology, and solves the problem that if no relevant restrictions are imposed on the spray angle of the spray equipment, the air environment humidity in the relevant area outside the construction area will be high, which will cause the external air quality environment to deteriorate. The present invention controls the relevant spray equipment to effectively reduce dust in the relevant area to ensure the overall safety of the environment, and before dust reduction, analyzes whether its spray curve will overflow outside the guardrail of the corresponding construction area. If such a situation exists, it is necessary to set the spray angle used by the corresponding spray equipment in advance, so that the corresponding spray equipment can not only effectively reduce dust, but also ensure that it will not affect the air environment outside the guardrail, so as to achieve a better overall control effect of the safety environment of the construction area.

Description

Technical Field

[0001] The invention relates to the technical field of air environment, and in particular to a construction engineering environment safety monitoring system. Background Art

[0002] During the construction process, measures need to be taken to reduce the impact of construction on the surrounding environment, such as the control of noise, dust, wastewater and other pollution. For dust pollution, corresponding spray equipment is generally required to carry out spray dust reduction to ensure the overall safety of the air environment inside the construction area.

[0003] The application with publication number CN110864938A discloses an intelligent building air environment monitoring and management system, including a dynamic sampling system, an environmental adjustment system, an abnormal warning system and a terminal control system; the present invention obtains the real-time parameter values ​​of the air quality in each area of ​​the building environment in the form of dynamic circulation, ensuring that the detected air circulates evenly and the detection accuracy is high; by obtaining parameters such as particulate matter, harmful gases, microbial content, temperature and humidity, and smoke conditions in the air, the air environment can be fully monitored; at the same time, according to the detection data, the corresponding air environment adjustment can be carried out to control the air environment in a safe and healthy state, and the abnormal state can be reminded in advance by using the abnormal warning system, so as to facilitate timely response measures; the air quality and the operation of related equipment can be understood in real time through the terminal control system, which is convenient for macro-control and conducive to creating a green and healthy construction environment.

[0004] When managing the air environment in the construction area of ​​a construction site, the dust content in the air environment is generally monitored through the corresponding dust monitor, and the spray equipment is controlled based on the monitoring results to complete the overall environmental management of the construction area. However, the management method here only considers the internal area of ​​the construction site, and its spray process will simultaneously affect the external area. Since there are no restrictions on the spray angle of the spray equipment, the air environment humidity in the relevant areas outside the construction area will be higher, which will cause the external air quality environment to deteriorate and cause adverse effects. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a construction project environmental safety monitoring system, which solves the problem that failure to impose relevant restrictions on the spray angle of the spray equipment will lead to high air humidity in the relevant areas outside the construction area, causing the external air quality environment to deteriorate.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A construction engineering environmental safety monitoring system, comprising:

[0007] The data monitoring end is a dust monitoring device installed in the construction area. The dust monitoring device can effectively monitor the dust content, wind speed, wind direction, air humidity and other related air environment indicators in the corresponding area.

[0008] The spray parameter confirmation terminal confirms the working parameters of the spray equipment based on the dust content monitored in the corresponding construction area, and generates the spray curve of the spray equipment based on the confirmed working parameters. The specific method is as follows:

[0009] The dust content monitored in real time is calibrated as H i , where i represents different moments, and the monitored H i Check with the preset value Y1, where Y1 is the preset standard value;

[0010] If H i <Y1, then continue monitoring;

[0011] If H i ≥Y1, the dust content confirmed at this moment is calibrated as WR i , using WR i ×C1=PS i Determine the injection volume per unit time PS at the current moment i , where C1 is the preset fixed coefficient factor;

[0012] Using P i =A×V to determine the spray velocity V of the corresponding spray, where A is the area parameter of the corresponding spray port;

[0013] Based on the determined spray velocity V, the relevant equation of the spray curve associated with the spray velocity V is obtained: , where θ is the spray angle, g is the gravitational acceleration, x is the horizontal coordinate parameter, and y is the vertical coordinate parameter. Based on this related equation, a spray curve related to the spray velocity V is generated;

[0014] Transmitting the generated spray curve to the three-dimensional scene generation end;

[0015] The 3D scene generation end generates a 3D scene of the construction area and places the generated spray curve in the 3D scene. The 3D scene includes the guardrails around the construction area and the spray equipment. The specific method is as follows:

[0016] Based on the monitoring probe at the construction site, the construction scene of this construction area is determined, and the obtained image is compared with the standard model of the spray equipment and the surrounding guardrail to determine the location of the spray equipment and the surrounding guardrail. After the location of the spray equipment and the surrounding guardrail is confirmed, the standard model of the corresponding spray equipment and the surrounding guardrail is moved to the corresponding position to generate a three-dimensional scene of the construction area;

[0017] Determine the location and nozzle of the spray device, align the initial point of the confirmed spray curve with the nozzle, and place the spray curve in the three-dimensional scene;

[0018] The wind speed parameter confirmation terminal performs numerical confirmation on the wind speed and wind direction monitored in the historical data, identifies the different wind forces associated with different wind speeds based on the different wind speeds associated with different wind directions in the historical data, and transmits the confirmed different wind forces to the point translation processing terminal. The specific method is as follows:

[0019] A set of extraction cycles T is defined, where T is a preset value. Based on the current moment, a set of monitoring data with a cycle of T is extracted from the historical data monitored by the data monitoring terminal. Several groups of different wind speeds corresponding to the same wind direction are extracted from the monitoring data. The maximum wind speed is extracted from the several groups of different wind speeds as the pending wind speed of this wind direction.

[0020] Adopt F k =0.0051×Vs 2 , confirm the maximum wind force F generated by the corresponding wind direction within the extraction period T k , where Vs is the undetermined wind speed associated with the corresponding wind direction;

[0021] The maximum wind force F generated by the different wind directions confirmed k Transmitted to the point translation processing end;

[0022] The point translation processing end performs relevant processing on the three-dimensional scene generated in the three-dimensional scene end, identifies the deviation of the spray curve caused by different wind forces in different wind directions, generates its deviation curve, and transmits the generated several groups of deviation curves to the three-dimensional scene generation end. The specific method is as follows:

[0023] Based on the spray direction of the spray curve, the wind vane with an angle less than 90° with the spray direction is set as the selected direction;

[0024] Determine the maximum wind force F associated with the selected direction k , using F k =ma k Determine the acceleration a of the water mist in the corresponding selected direction k , where m is the preset water mist mass;

[0025] Determine the initial point and vertex of the spray curve, mark this part of the line segment as the waiting line segment, determine the spray point corresponding to different unit times in this waiting line segment, and make all subsequent spray points of the initial point move horizontally in the selected direction for one unit time. The translation distance L= (a k× unit time), after the first unit time is over, all subsequent spray points of the second group of spray points are horizontally translated in the selected direction for one unit time, and after the second unit time is over, the related translation of the subsequent other unit times is continued until all subsequent spray points are the last spray point, and the curvature of the curve of the line segment to be changed remains unchanged. After the points are translated one by one, the offset curve of the line segment to be changed is determined;

[0026] Then, the offset curves associated with each group of different selected directions are confirmed one by one, and the confirmed groups of offset curves are calibrated into the three-dimensional scene generation end;

[0027] The assessment center, based on several different groups of offset curves in the 3D scene generation terminal, identifies whether such spray will move outside the guardrail by confirming the height value of the guardrail around the construction area, and generates an identification signal based on the identification result for display; the specific method is:

[0028] Determine the height value GD of the surrounding guardrail from the internal 3D scene of the 3D scene generation end, then identify the height values ​​Gq of different points in the offset curve, and mark the points that satisfy: Gq>GD as the points to be processed;

[0029] Identify the vertical distance CCq between the point to be processed and the plane where the guardrail is located, where q represents different points, and compare the determined groups of vertical distances CCq with the preset value Y2, where Y2 is the preset value. If all vertical distances CCq satisfy: CCq<Y2, no identification signal is generated. If not, a water mist overflow signal is generated for display.

[0030] The present invention provides a construction engineering environmental safety monitoring system. Compared with the prior art, it has the following beneficial effects:

[0031] The present invention monitors the relevant air index parameters in the construction area to identify whether spray dust reduction treatment is needed, thereby ensuring the real-time nature of environmental safety monitoring.

[0032] When the internal air of a construction area needs to be treated for dust reduction, the relevant spray equipment is generally controlled to effectively reduce dust in the relevant area to ensure the overall safety of the environment. Before dust reduction, it is analyzed whether the spray curve will overflow outside the guardrail of the corresponding construction area. If such a situation exists, it is necessary to set the spray angle used by the corresponding spray equipment in advance so that the corresponding spray equipment can not only effectively reduce dust, but also ensure that it will not affect the air environment outside the guardrail, so as to achieve a better overall control effect on the safety environment of the construction area. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the principle framework of the present invention;

[0034] Figure 2 It is a schematic diagram of determining the offset curve of the present invention;

[0035] Figure numerals: 1, spray equipment; 2, line segment to be changed; 3, offset curve; 4, spray curve. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1 , the present application provides a construction engineering environmental safety monitoring system, including a data monitoring terminal, a spray parameter confirmation terminal, a wind speed parameter confirmation terminal, a three-dimensional scene generation terminal, a point translation processing terminal and an assessment center, wherein the data monitoring terminal is electrically connected to the wind speed parameter confirmation terminal or the spray parameter confirmation terminal input node, and the spray parameter confirmation terminal is electrically connected to the three-dimensional scene generation terminal input node, and the wind speed parameter confirmation terminal is electrically connected to the point translation processing terminal input node, wherein the three-dimensional scene generation terminal is bidirectionally connected to the point translation processing terminal, and the three-dimensional scene generation terminal is electrically connected to the assessment center input node;

[0038] Among them, the data monitoring end is a dust monitoring device installed in the construction area, which can effectively monitor the dust content, wind speed, wind direction, air humidity and other related air environment indicators in the corresponding area, and transmit the monitored groups of related air environment indicators to the spray parameter confirmation end or the wind speed parameter confirmation end respectively;

[0039] The spray parameter confirmation end confirms the working parameters of the spray device 1 based on the dust content monitored in the corresponding construction area (specifically, the air content index of PM2.5, PM5 and PM10, that is, the sum of the total number of the three pollutants), and generates a spray curve 4 of the spray device 1 based on the confirmed working parameters, and transmits the generated spray curve 4 to the three-dimensional scene generation end. The specific method of generating the spray curve 4 is:

[0040] The dust content monitored in real time is calibrated as H i , where i represents different moments, and the monitored H i Check with the preset value Y1, where Y1 is the preset standard value, and its specific value is determined by the operator based on experience, generally the dust content in the air without environmental pollution;

[0041] If Hi <Y1, then continue monitoring;

[0042] If H i ≥Y1, the dust content confirmed at this moment is calibrated as WR i , using WR i ×C1=PS i Determine the injection volume per unit time PS at the current moment i , where C1 is a preset fixed coefficient factor, and its specific value is determined by the operator based on experience;

[0043] Using P i =A×V to confirm the corresponding spray velocity V, where A is the area parameter of the corresponding spray port, which is determined in advance by the operator;

[0044] Based on the determined spray velocity V, the relevant equation of the spray curve 4 related to the spray velocity V is obtained: , g is the acceleration of gravity, θ is the spray angle, which is generally a fixed value of 45° and is input in advance by the operator, x is the horizontal coordinate parameter, y is the vertical coordinate parameter, and based on this related equation, a spray curve 4 related to the spray velocity V is generated (only the partial curve of this spray curve 4 from the initial point to the highest point is considered later, and the subsequent curves are not considered. Since the spray target here is for dust spraying, when it reaches the highest point, its spray will spread out, so the subsequent spray curve 4 is actually not accurate, so only the first half of the curve is considered here);

[0045] The generated spray curve 4 is transmitted to the three-dimensional scene generation end.

[0046] Among them, the three-dimensional scene generating end generates a three-dimensional scene of the construction area, and places the generated spray curve 4 in the three-dimensional scene. The three-dimensional scene includes the guardrail around the construction area and the spray equipment 1. The specific execution method is:

[0047] Based on the monitoring probe at the construction site, the construction scene of this construction area is determined, and the obtained image is compared with the standard model of the spray equipment 1 and the surrounding guardrail to determine the location of the spray equipment 1 and the surrounding guardrail. After the location of the spray equipment 1 and the surrounding guardrail is confirmed, the corresponding standard model of the spray equipment 1 and the surrounding guardrail is moved to the corresponding position to generate a three-dimensional scene of the construction area (the standard model is a preset model, which is prepared in advance by the relevant operator. Because it is common in the prior art to generate an overall three-dimensional scene model of the corresponding area based on the collected panoramic image, it will not be described in detail here. The model comparison is generally: using a computer vision algorithm, the processed image is compared with the standard model of the spray equipment 1 and the surrounding guardrail. During the comparison process, the system will calculate the degree of matching between the feature points in the image and the standard model; according to the comparison results, the system can automatically identify and mark the exact location of the spray equipment 1 and the guardrail in the image; this process may involve image processing technologies such as edge detection and shape recognition);

[0048] Combination Figure 2 , determine the location and injection port of the spray device 1, align the initial point of the confirmed spray curve 4 with the injection port, and place the spray curve 4 in this three-dimensional scene (the injection port is pre-marked with relevant marks in the standard model of the spray device 1).

[0049] The wind speed parameter confirmation terminal performs numerical confirmation on the wind speed and wind direction monitored in the historical data, identifies the different wind forces associated with the different wind speeds based on the different wind speeds associated with the different wind directions in the historical data, and transmits the confirmed different wind forces to the point translation processing terminal. The specific method of identification is as follows:

[0050] A set of extraction cycles T is defined, where T is a preset value, and its specific value is determined by the operator based on experience, and is generally 30 minutes. Based on the current moment, a set of monitoring data with a cycle of T is extracted from the historical data monitored by the data monitoring terminal (that is, all monitoring data of a time period T traced back from the current moment), and several groups of different wind speeds corresponding to the same wind direction are extracted from the monitoring data. The maximum wind speed is extracted from several groups of different wind speeds as the pending wind speed of this wind direction, and the wind direction includes eight directions (respectively: east, south, west, north, southeast, southwest, northwest and northeast eight directions);

[0051] Adopt F k =0.0051×Vs 2 , confirm the maximum wind force F generated by the corresponding wind direction within the extraction period T k , where Vs is the undetermined wind speed associated with the corresponding wind direction;

[0052] The maximum wind force F generated by the different wind directions confirmedk Transmitted to the point translation processing end:

[0053] Example: In a certain extraction period T (30 minutes), the monitoring data shows that in the "north" wind direction, the recorded wind speeds are 8, 9, 7 and 10 respectively; according to the steps, 10 is selected as the undetermined wind speed in the "north" wind direction; through calculation, F _k =0.0051×10 2 =0.51N, that is, during this period, the maximum wind force that can be generated by the "north" wind direction is 0.51 Newton;

[0054] In this way, the corresponding maximum wind speed can be calculated for different wind directions and appropriate risk management measures can be taken. This helps to prepare for possible strong wind conditions in advance and reduce losses and risks.

[0055] The point translation processing end performs relevant processing on the three-dimensional scene generated in the three-dimensional scene end, identifies the offset of the spray curve 4 generated by different wind forces in different wind directions, generates its offset curve 3, and transmits the generated several groups of offset curves 3 to the three-dimensional scene generation end. The specific method of generating its offset curve 3 is as follows:

[0056] Based on the spray direction of spray curve 4, the wind vane with an angle less than 90° to its spray direction is set as the selected direction (only the forward interference is considered here, and the reverse interference generated by the wind force will generally place the water mist in the construction area and will not be blown outside the guardrail);

[0057] Determine the maximum wind force F associated with the selected direction k , using F k =ma k Determine the acceleration a of the water mist in the corresponding selected direction k , where m is the preset water mist mass;

[0058] Determine the initial point and vertex of spray curve 4, mark this part of the line segment as the waiting line segment 2, determine the spray points corresponding to different unit times in this waiting line segment 2 (the initial time is the initial point, and the second unit time is the second spray point), make all subsequent spray points of the initial point move horizontally in the selected direction for one unit time, and the translation distance L is (a k× unit time), the unit time is generally 1 second. After the first unit time is over, all subsequent spray points of the second group of spray points are horizontally translated in the selected direction for one unit time. After the second unit time is over, the related translation of the subsequent other unit times is continued until all subsequent spray points are the last spray point. The curvature of the curve of the line segment 2 to be changed remains unchanged. After the points are translated one by one, the offset curve 3 of the line segment 2 to be changed is determined. Specifically, after the spray curve 4 is determined, starting from the first group of points, the second point is translated for one unit distance, and the subsequent curve moves with the second point. After the second point moves, the third point is moved, and then all subsequent points also move with it. By analogy, the offset curve 3 of the line segment 2 to be changed can be determined.

[0059] Then, the offset curves 3 associated with each group of different selected directions are confirmed one by one, and the confirmed groups of offset curves 3 are calibrated into the three-dimensional scene generation end.

[0060] The assessment center, based on several groups of different offset curves 3 existing in the three-dimensional scene generation terminal, identifies whether such spray will move outside the guardrail by confirming the height value of the guardrail around the construction area, and generates an identification signal based on the identification result for display, wherein the specific method of identification is:

[0061] Determine the height value GD of the surrounding guardrail from the internal 3D scene of the 3D scene generation end, then identify the height values ​​Gq of different points in the offset curve 3, and mark the points that satisfy: Gq>GD as the points to be processed;

[0062] Identify the vertical distance CCq between the point to be processed and the plane where the guardrail is located, where q represents different points, and compare the determined groups of vertical distances CCq with the preset value Y2, where Y2 is the preset value, and its specific value is determined by the operator based on experience. If all vertical distances CCq satisfy: CCq<Y2, no identification signal is generated. If not, a water mist overflow signal display is generated.

[0063] Based on the displayed water mist overflow signal, the external operator needs to reduce the originally set spray angle θ until no identification signal is generated;

[0064] Specifically, when dealing with dust at a construction site, it is necessary to use relevant spray equipment 1 to reduce dust, especially in some highway areas where there are a large number of passers-by outside the guardrails. Improper adjustment of the angle of the corresponding spray equipment 1 will cause a large amount of water mist to overflow the guardrails, causing the road passed by external passers-by to be too wet. Although the dust reduction treatment of the area is achieved, it will also affect the surrounding environment at the same time. Therefore, it is necessary to adjust the set spray angle to ensure that the spray can not only achieve the optimal dust reduction effect, but also will not affect the external air environment.

[0065] Some of the data in the above formulas are dimensionless and numerically calculated. Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0066] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A construction engineering environmental safety monitoring system, characterized in that: include: The data monitoring end is a dust monitoring device installed in the construction area, which can effectively monitor the dust content, wind speed, wind direction, and air humidity in the corresponding area; The spray parameter confirmation terminal confirms the working parameters of the spray equipment based on the dust content monitored in the corresponding construction area, and generates the spray curve of the spray equipment based on the confirmed working parameters. The specific method is as follows: The dust content monitored in real time is calibrated as H i , where i represents different moments, and the monitored H i Check with the preset value Y1, where Y1 is the preset standard value; If H i <Y1, then continue monitoring; If H i ≥Y1, the dust content confirmed at this moment is calibrated as WR i , using WR i ×C1=PS i Determine the injection volume per unit time PS at the current moment i , where C1 is the preset fixed coefficient factor; Using PS i =A×V to determine the spray velocity V of the corresponding spray, where A is the area parameter of the corresponding spray port; Based on the determined spray velocity V, the relevant equation of the spray curve associated with the spray velocity V is obtained: , where θ is the spray angle, g is the gravitational acceleration, x is the horizontal coordinate parameter, and y is the vertical coordinate parameter. Based on this related equation, a spray curve related to the spray velocity V is generated; Transmitting the generated spray curve to the three-dimensional scene generation end; The 3D scene generation end generates a 3D scene of the construction area and places the generated spray curve in the 3D scene. The 3D scene includes the guardrails around the construction area and the spray equipment. The specific method is as follows: Based on the monitoring probe at the construction site, the construction scene of this construction area is determined, and the obtained image is compared with the standard model of the spray equipment and the surrounding guardrail to determine the location of the spray equipment and the surrounding guardrail. After the location of the spray equipment and the surrounding guardrail is confirmed, the standard model of the corresponding spray equipment and the surrounding guardrail is moved to the corresponding position to generate a three-dimensional scene of the construction area; Determine the location and nozzle of the spray device, align the initial point of the confirmed spray curve with the nozzle, and place the spray curve in the three-dimensional scene; The wind speed parameter confirmation terminal performs numerical confirmation on the wind speed and wind direction monitored in the historical data, identifies the different wind forces associated with different wind speeds based on the different wind speeds associated with different wind directions in the historical data, and transmits the confirmed different wind forces to the point translation processing terminal. The specific method is as follows: A set of extraction cycles T is defined, where T is a preset value. Based on the current moment, a set of monitoring data with a cycle of T is extracted from the historical data monitored by the data monitoring terminal. Several groups of different wind speeds corresponding to the same wind direction are extracted from the monitoring data. The maximum wind speed is extracted from the several groups of different wind speeds as the pending wind speed of this wind direction. Adopt F k =0.0051×Vs 2 , confirm the maximum wind force F generated by the corresponding wind direction within the extraction period T k , where Vs is the undetermined wind speed associated with the corresponding wind direction; The maximum wind force F generated by the different wind directions confirmed k Transmitted to the point translation processing end; The point translation processing end performs relevant processing on the three-dimensional scene generated in the three-dimensional scene end, identifies the deviation of the spray curve caused by different wind forces in different wind directions, generates its deviation curve, and transmits the generated several groups of deviation curves to the three-dimensional scene generation end. The specific method is as follows: Based on the spray direction of the spray curve, the wind vane with an angle less than 90° with the spray direction is set as the selected direction; Determine the maximum wind force F associated with the selected direction k , using F k =ma k Determine the acceleration a of the water mist in the corresponding selected direction k , where m is the preset water mist mass; Determine the initial point and vertex of the spray curve, mark this part of the line segment as the waiting line segment, determine the spray point corresponding to different unit times in this waiting line segment, and make all subsequent spray points of the initial point move horizontally in the selected direction for one unit time. The translation distance L= (a k × unit time), after the first unit time is over, all subsequent spray points of the second group of spray points are horizontally translated in the selected direction for one unit time, and after the second unit time is over, the related translation of the subsequent other unit times is continued until all subsequent spray points are the last spray point, and the curvature of the curve of the line segment to be changed remains unchanged. After the points are translated one by one, the offset curve of the line segment to be changed is determined; Then, the offset curves associated with each group of different selected directions are confirmed one by one, and the confirmed groups of offset curves are calibrated into the three-dimensional scene generation end; The assessment center, based on several different groups of offset curves in the 3D scene generation terminal, identifies whether such spray will move outside the guardrail by confirming the height value of the guardrail around the construction area, and generates an identification signal based on the identification result for display. The specific method is as follows: Determine the height value GD of the surrounding guardrail from the internal 3D scene of the 3D scene generation end, then identify the height values ​​Gq of different points in the offset curve, and mark the points that satisfy: Gq>GD as the points to be processed; Identify the vertical distance CCq between the point to be processed and the plane where the guardrail is located, where q represents different points, and compare the determined groups of vertical distances CCq with the preset value Y2, where Y2 is the preset value. If all vertical distances CCq satisfy: CCq<Y2, no identification signal is generated. If not, a water mist overflow signal is generated for display.

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