CN112908432B - Hazard zone determination method, hazard zone determination device, computer equipment and storage medium - Google Patents

Hazard zone determination method, hazard zone determination device, computer equipment and storage medium Download PDF

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CN112908432B
CN112908432B CN202011641302.9A CN202011641302A CN112908432B CN 112908432 B CN112908432 B CN 112908432B CN 202011641302 A CN202011641302 A CN 202011641302A CN 112908432 B CN112908432 B CN 112908432B
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董晓波
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Beijing Teamsun Technology Co ltd
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Abstract

The application relates to a hazard zone determination method, a hazard zone determination device, computer equipment and a storage medium. The method comprises the following steps: firstly, storing index systems corresponding to different toxic dose levels and toxic doses; then acquiring current field environment parameters; and finally, determining the toxic dose under the specified toxic dose level according to the index system, and rapidly and accurately determining the hazard area according to the toxic dose, the current environmental parameter and a toxic dose equation, wherein the determined hazard area has high accuracy.

Description

Hazard zone determination method, hazard zone determination device, computer equipment and storage medium
Technical Field
The application relates to the technical field of risk assessment of dangerous chemicals, in particular to a method and a device for determining a hazard area, computer equipment and a storage medium.
Background
Because the hazard of dangerous chemical accidents is large, the analysis and calculation of the hazard degree in emergency treatment are rapid control of the situation development, and the requirements of personnel and property loss are reduced.
At present, the chemical hazard degree is estimated according to subjective experiences of experts and command decision makers in the field of dangerous chemicals, and the result lacks timeliness and stability, and is high in subjectivity, so that the accuracy is low.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a hazard zone determination method, apparatus, computer device, and storage medium capable of improving the accuracy of hazard zone determination.
A hazard zone determination method, the method comprising:
Storing index systems corresponding to different toxic dose levels and toxic doses;
Acquiring current field environment parameters;
Determining a toxic dose at a specified toxic dose level according to the index system, and determining a hazard zone according to the toxic dose, the current environmental parameter and a toxic dose equation.
In one embodiment, determining the hazard zone based on the poison dosage, the current environmental parameter, and a poison dosage equation comprises:
Determining a plurality of two-dimensional coordinates at the poison dosage that satisfy the poison dosage equation;
the plurality of two-dimensional coordinates are connected to form a closed curve, and the area surrounded by the curve is determined as the hazard area.
In one embodiment, after determining the hazard zone, the method further comprises:
And determining a coordinate matrix according to the characteristic points on the curve, and visualizing according to the coordinate matrix.
In one embodiment, the toxic dose equation is:
wherein LC t represents a toxic dose; k 0、k1 is the atmospheric diffusion coefficient of the raman; n is a Rachtmann stability criterion; x and y are coordinates in two directions of space; z 1 is the value of the third direction of the space; t is the time of toxic action on personnel; r is a meteorological stability coefficient;
The field environment parameters include: q, K u, u1, h being the height at z 1; u1 is the wind speed at the z 1 height; q is the leakage amount of toxic gas; k u is the gasification rate of the toxic gas.
A hazard zone determination apparatus, the apparatus comprising:
The storage module is used for storing index systems corresponding to different poisoning dosage levels and poisoning dosages;
the acquisition module is used for acquiring current field environment parameters;
The hazard zone determining module is used for determining the toxic dose under the specified toxic dose level according to the index system and determining the hazard zone according to the toxic dose, the current environmental parameter and the toxic dose equation.
In one embodiment, the hazard zone determination module is further to:
Determining a plurality of two-dimensional coordinates at the poison dosage that satisfy the poison dosage equation;
A plurality of two-dimensional coordinates are connected to form a closed curve, and the area enclosed by the curve is determined as the hazard area.
In one embodiment, the hazard zone determination device further comprises a visualization module for:
And determining a coordinate matrix according to the characteristic points on the curve, and visualizing according to the coordinate matrix.
In one embodiment, the toxic dose equation is:
wherein LC t represents a toxic dose; k 0、k1 is the atmospheric diffusion coefficient of the raman; n is a Rachtmann stability criterion; x and y are coordinates in two directions of space; z 1 is the value of the third direction of the space; t is the time of toxic action on personnel; t is the time of action on personnel; r is a meteorological stability coefficient;
the field environment parameters include: q, K u, u1 and h, wherein h is the height of a field acquisition point; h is the height at z 1; u1 is the wind speed at the z 1 height; q is the leakage amount of toxic gas; k u is the gasification rate of toxic gases.
A computer device comprising a memory storing a computer program and a processor which when executing the computer program performs the steps of:
Storing index systems corresponding to different toxic dose levels and toxic doses;
Acquiring current field environment parameters;
Determining a toxic dose at a specified toxic dose level according to the index system, and determining a hazard zone according to the toxic dose, the current environmental parameter and a toxic dose equation.
A computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
Storing index systems corresponding to different toxic dose levels and toxic doses;
Acquiring current field environment parameters;
Determining a toxic dose at a specified toxic dose level according to the index system, and determining a hazard zone according to the toxic dose, the current environmental parameter and a toxic dose equation.
The method, the device, the computer equipment and the storage medium for determining the hazard area firstly store index systems corresponding to different toxic dose levels and toxic doses; then acquiring current field environment parameters; and finally, determining the toxic dose under the specified toxic dose level according to the index system, and rapidly and accurately determining the hazard area according to the toxic dose, the current environmental parameter and a toxic dose equation, wherein the determined hazard area has high accuracy.
Drawings
FIG. 1 is a flow diagram of a method of hazard zone determination in one embodiment;
FIG. 2 is a flow chart of a visualization step in another embodiment;
FIG. 3 is a block diagram of a hazard zone determination device in one embodiment;
fig. 4 is an internal structural diagram of a computer device in one embodiment.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
Chemical disaster accidents are of various types, wherein the damage of large-scale poison leakage accidents caused by explosion is the largest, and the damage is in time to hundreds of kilometers. Along with the continuous expansion of the production scale of modern chemical enterprises, more and more dangerous articles are produced and stored, wherein toxic, harmful and flammable and explosive chemical substances are not consumed. The embodiment of the application provides a hazard area determination method which can rapidly and accurately determine the hazard area of a hazardous chemical substance leakage accident.
In one embodiment, as shown in fig. 1, a hazard zone determining method is provided, where the method is applied to a terminal to illustrate the hazard zone determining method, it is understood that the method may also be applied to a server, and may also be applied to a system including the terminal and the server, and implemented through interaction between the terminal and the server. In this embodiment, the method includes the steps of:
step 102, storing index systems corresponding to different poisoning dose levels and poisoning doses.
Wherein, the index system refers to the corresponding relation, and the index system corresponding to different toxic dose levels and toxic doses refers to the corresponding relation between different toxic dose levels and toxic doses. The index system can also comprise the corresponding relation between different toxic dose levels and toxic dose under different dangerous chemical categories.
Different dangerous chemicals can be toxic gases such as formaldehyde, sulfur dioxide, chlorine, chloropropene and the like. The different toxic dose levels can be divided into a first toxic dose, a second toxic dose, a third toxic dose and a fourth toxic dose in order from the small to the large according to the hazard size, wherein the first toxic dose represents a slight toxic dose, the second toxic dose represents a moderate toxic dose, the third toxic dose represents a severe toxic dose, and the fourth toxic dose represents a deadly dose.
Specifically, the corresponding relation between different poisoning dosage levels and poisoning dosages of different dangerous chemicals is constructed according to the physicochemical properties and toxicity of the different dangerous chemicals. The corresponding relationship may also contain toxicity levels of different dangerous chemicals, and the dangerous chemicals may be classified according to the toxicity levels of the different dangerous chemicals, for example, the toxicity levels of formaldehyde and sulfur dioxide are positioned at level 1, and the toxicity levels of chlorine and chloropropene are positioned at level 2. The corresponding relation between the different poisoning dosage levels and the poisoning dosages of the established different dangerous chemicals is stored in a database, and can be stored in a two-dimensional table or a key value pair, and the embodiment is not limited herein.
From empirical data of historical hazardous chemical substances accidents, it is known that: the time of the serious injury people contacting the high concentration is generally not more than 30min, the total influence time of the accident is mostly within 60min, and the closer to the leakage source, the higher the concentration, the more serious the injury and death. Therefore, the first hazard area, the second hazard area, the third hazard area and the fourth hazard area can be determined according to the first poisoning dosage, the second poisoning dosage, the third poisoning dosage and the fourth poisoning dosage, and further personnel are reminded to take corresponding measures according to different hazard areas, so that situation development is timely controlled.
Step 104, obtaining the current field environment parameters.
Specifically, the field acquisition device is used for acquiring the field environment data at the current moment, and the environment data is processed to obtain the environment parameters. The environmental parameters may include the elevation of the site collection point, wind speed, temperature, leakage of toxic gases, gasification rate, etc. The height of the site collection point can be detected by the air pressure sensor to detect the change of the atmospheric pressure, so that the change of the height is calculated to obtain the height of the site collection point, and the distance measuring sensor can be used for obtaining the height of the site collection point and the three-dimensional coordinates of the collection point, which is not limited in the embodiment. The wind speed at the site collection point can be measured by an ultrasonic anemometer. The concentration of the toxic gas at the site collection point can be measured by a gas concentration sensor, and parameters such as leakage quantity, gasification rate and the like are determined by measuring the concentration of the toxic gas at a plurality of places and the expression of the concentration of the toxic gas. The gas concentration sensor can be placed at multiple points around the dangerous chemical, the closer to the dangerous chemical placement source, the more accurate the concentration of the toxic gas collected during an accident, the more accurate the calculated environmental parameters, so that the accuracy of a dangerous area is improved. If the concentration of dangerous chemicals of the leakage source can not be acquired during accident, the concentration of toxic gases of the leakage source can be determined by acquiring the concentration of toxic gases of other multiple acquisition points and analyzing big data.
A plurality of environment acquisition sensors can be placed around the dangerous chemical environment, environmental data are acquired in real time, whether the environmental data at the current moment are abnormal or not is analyzed by the terminal, and when abnormal data are found, a dangerous area calculation step is triggered.
When personnel are in a toxic gas field with a certain concentration, the injury will vary with the toxicity and concentration of the gas, the contact time and the individual health quality of the personnel. In general, when the concentration is high, acute poisoning (even fatal) can be caused by short-time contact; however, when the concentration is high, chronic accumulated poisoning may be caused by long-term contact. Therefore, environmental parameters are required to be quickly calculated according to the data acquired on site, so that the hazard area is quickly determined, and the timeliness of determining the hazard area can be improved.
And 106, determining the toxic dose at the specified toxic dose level according to the index system, and determining the hazard area according to the toxic dose, the current environmental parameter and a toxic dose equation.
Specifically, analyzing the substance components of a toxic gas sample collected on site, and determining the types of dangerous chemicals; the method comprises the steps of obtaining a first poisoning dose, a second poisoning dose, a third poisoning dose and a fourth poisoning dose corresponding to different dangerous chemicals from the physical and chemical properties and toxicity of the different dangerous chemicals to construct the corresponding relations between different poisoning dose levels and poisoning doses of the different dangerous chemicals, carrying the current field environmental parameters into one side of a poisoning dose equation according to the first poisoning dose carried into one side of the poisoning dose equation, and solving and determining a hazard area corresponding to the first poisoning dose. The same applies to the determination of the hazard areas corresponding to the second, third, and fourth poisoning doses, and the determination is not repeated here.
In the hazard area determining method, firstly, index systems corresponding to different toxic dose levels and toxic doses are stored; then acquiring current field environment parameters; and finally, determining the toxic dose under the specified toxic dose level according to the index system, and rapidly and accurately determining the hazard area according to the toxic dose, the current environmental parameter and a toxic dose equation, wherein the determined hazard area has high accuracy.
In one embodiment, determining the hazard zone based on the poison dosage, the current environmental parameter, and a poison dosage equation comprises:
Determining a plurality of two-dimensional coordinates at the poison dosage that satisfy the poison dosage equation;
the plurality of two-dimensional coordinates are connected to form a closed curve, and the area surrounded by the curve is determined as the hazard area.
Specifically, according to the wind speed of the site collection point, the abscissa of any point in the downwind direction is obtained, and then the ordinate satisfying the poisoning dose equation under the specified poisoning dose is determined. And determining the ordinate of the plurality of points according to the abscissa of the plurality of points in the downwind direction, so as to obtain a plurality of two-dimensional coordinates. And then connecting the two-dimensional coordinates to form a closed curve, wherein the area around the curve is a hazard area corresponding to the specified toxic dose.
Firstly, collecting current field environmental parameters and dangerous chemical samples, and carrying out toxicity identification according to the collected dangerous chemical samples to determine the types of dangerous chemicals. And then obtaining the poison dosage at the designated poison dosage level from the index system corresponding to the stored different poison dosage levels and the poison dosage, and determining a plurality of two-dimensional coordinates (namely hazard coordinates) meeting the poison dosage equation under the poison dosage. The plurality of two-dimensional coordinates are connected to form a closed curve, and the area surrounded by the curve is determined as the hazard area. Finally, the hazard area is visually presented, as shown in fig. 2, and is a hazard area diagram for the diffusion of the hazardous chemical substances.
In the embodiment, the influence of human subjective factors is reduced through quantitative analysis of the field data of the dangerous chemicals, and the timeliness of auxiliary decision making can be improved through rapid calculation of the dangerous areas.
In one embodiment, after determining the hazard zone, the method further comprises:
And determining a coordinate matrix according to the characteristic points on the curve, and visualizing according to the coordinate matrix.
Specifically, the poison dosage under the designated poison dosage level is obtained from the index system corresponding to the stored different poison dosage levels and the poison dosage, and a plurality of two-dimensional coordinates meeting the poison dosage equation under the poison dosage are determined. And constructing a corresponding coordinate matrix from the obtained two-dimensional coordinates, and visually presenting the coordinate matrix by using a GIS Bezier curve technology according to the wind direction of the on-site acquisition point. In practical application, the coordinate matrix of the hazard areas corresponding to the first poisoning dose, the second poisoning dose, the third poisoning dose and the fourth poisoning dose can be visually presented by using different colors or different marks, so that all the first hazard areas, the second hazard areas, the third hazard areas and the fourth hazard areas corresponding to the different poisoning doses are visually presented. Of course, in practical application, along with the change of the environmental data, the hazard areas corresponding to different toxic dose levels can be updated in real time according to the field environmental data acquired in real time.
In a hazardous chemical accident, the wind speed at the accident site is a major factor affecting the transmission of toxic gases. Corresponding to the actual situation, the wind speed is also the factor which is most easy to change under different meteorological conditions. Thus, the present embodiment visualizes the hazard area according to the real-time wind speed of the on-site collection point, and the direction of the hazard area may be different in different wind directions.
In the embodiment, through visual presentation of the hazard areas corresponding to different toxic dose levels, the hazard areas corresponding to accidents can be displayed more quickly, intuitively and accurately, so that a decision maker can conveniently and quickly take corresponding measures to respond according to the display result, the development of the situation is quickly controlled, and the casualties are reduced.
In one embodiment, the toxic dose equation is:
wherein LC t represents a toxic dose; k 0、k1 is the atmospheric diffusion coefficient of the raman; n is a Rachtmann stability criterion; x and y are coordinates in two directions of space; z 1 is the value of the third direction of the space; t is the time of toxic action on personnel; t is the time of action on personnel; r is a meteorological stability coefficient;
The field environment parameters include: q, K u, u1, h being the height at z 1; u1 is the wind speed at the z 1 height; q is the leakage amount of toxic gas; k u is the gasification rate of the toxic gas.
Specifically, r refers to the meteorological stability coefficient, the value of which is obtainable according to the method recommended by the national GB-3840 standard. The Laherty stability criterion n can take values of1, 2,3, 4, 5 and 6, respectively represent A, B, C, D, E, F six types of stability, and the corresponding coefficient value is automatically judged and selected according to the field environment stability (conditions such as air pressure, wind speed and the like). k 0、k1 is the atmospheric diffusion coefficient of the Raschumann, all related to the Raschumann stability criterion, the diffusion coefficient k 1＝k0 of toxic gases in the horizontal direction on flat ground.
The toxic dose of the dangerous chemical to the human body can be obtained by multiplying the action time of the concentration of the dangerous chemical to the human body, so that the toxic dose equation can be obtained by integrating the expression of the change of the concentration of toxic gas along with the time in the action time. In the embodiment, only the poison gas dosage distribution on the ground is considered, namely, the z value of three direction coordinates of the poison dosage equation is set to be 0; in the toxic dose equation, only x and y are not determined, and the abscissa (x) of any point of the wind direction is taken down, so that the ordinate (y) can be obtained according to the following formula, and a two-dimensional coordinate can be determined, wherein deltat in the expression of y represents the action time of dangerous chemicals on unprotected personnel. A plurality of two-dimensional coordinates are connected to form a closed curve, and the area around the curve is a hazard area corresponding to the specified toxic dose.
In the embodiment, various field data acquisition devices can be placed at the place where the hazardous chemical substance is placed, and surrounding environment data of the hazardous chemical substance is acquired in real time, so that the safety of the hazardous chemical substance is analyzed, once abnormality is found, a hazard area calculation method is immediately triggered, hazard areas corresponding to different toxic dose levels are accurately calculated through the hazard area determination method provided by the invention, and the hazard areas corresponding to the different toxic dose levels are marked and displayed by different colors through a terminal screen, so that related personnel are reminded to take corresponding measures in time to rapidly control the development of events, evacuate personnel in time and reduce casualties.
In order to easily understand the technical solution provided by the embodiments of the present application, the hazard area determining method provided by the embodiments of the present application is briefly described in a complete hazard area determining process:
(1) Storing index systems corresponding to different toxic dose levels and toxic doses;
(2) Acquiring current field environment parameters;
(3) Determining a poisoning dose under a specified poisoning dose level according to the index system, and determining a plurality of two-dimensional coordinates meeting the poisoning dose equation under the poisoning dose according to the poisoning dose, the current environmental parameter and the poisoning dose equation;
The toxic dose equation is:
(4) The two-dimensional coordinates are connected to form a closed curve, and an area surrounded by the curve is determined to be the hazard area;
(5) And determining a coordinate matrix according to the characteristic points on the curve, and visualizing according to the coordinate matrix.
In one embodiment, as shown in fig. 3, there is provided a hazard zone determination apparatus comprising: a storage module 302, an acquisition module 304, and a hazard zone determination module 306, wherein:
the storage module 302 is configured to store index systems corresponding to different toxic dose levels and toxic doses.
The obtaining module 304 is configured to obtain a current field environment parameter.
The hazard zone determination module 306 is configured to determine a toxic dose at a specified toxic dose level according to the indicator system, and determine a hazard zone according to the toxic dose, the current environmental parameter, and a toxic dose equation.
In one embodiment, the hazard zone determination module 306 is further to:
Determining a plurality of two-dimensional coordinates at the poison dosage that satisfy the poison dosage equation;
A plurality of two-dimensional coordinates are connected to form a closed curve, and the area enclosed by the curve is determined as the hazard area.
In one embodiment, the hazard zone determination device further comprises a visualization module for:
And determining a coordinate matrix according to the characteristic points on the curve, and visualizing according to the coordinate matrix.
In one embodiment, the toxic dose equation is:
wherein LC t represents a toxic dose; k 0、k1 is the atmospheric diffusion coefficient of the raman; n is a Rachtmann stability criterion; x and y are coordinates in two directions of space; z 1 is the value of the third direction of the space; t is the time of toxic action on personnel; t is the time of action on personnel; r is a meteorological stability coefficient;
The field environment parameters include: q, K u, u1, h being the height at z 1; u1 is the wind speed at the z 1 height; q is the leakage amount of toxic gas; k u is the gasification rate of toxic gases.
For specific limitations of the hazard zone determination device, reference may be made to the limitations of the hazard zone determination method hereinabove, and no further description is given here. The respective modules in the above-described hazard zone determination apparatus may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, which may be a terminal, and the internal structure of which may be as shown in fig. 4. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a hazard zone determination method. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be keys, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by persons skilled in the art that the architecture shown in fig. 4 is merely a block diagram of some of the architecture relevant to the present inventive arrangements and is not limiting as to the computer device to which the present inventive arrangements are applicable, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
In one embodiment, a computer device is provided comprising a memory and a processor, the memory having stored therein a computer program, the processor when executing the computer program performing the steps of:
Storing index systems corresponding to different toxic dose levels and toxic doses;
Acquiring current field environment parameters;
Determining a toxic dose at a specified toxic dose level according to the index system, and determining a hazard zone according to the toxic dose, the current environmental parameter and a toxic dose equation.
In one embodiment, the processor when executing the computer program further performs the steps of: determining a hazard zone based on the poison dosage, the current environmental parameter, and a poison dosage equation, comprising: determining a plurality of two-dimensional coordinates at the poison dosage that satisfy the poison dosage equation; the plurality of two-dimensional coordinates are connected to form a closed curve, and the area surrounded by the curve is determined as the hazard area.
In one embodiment, the processor when executing the computer program further performs the steps of: after determining the hazard zone, the method further comprises: and determining a coordinate matrix according to the characteristic points on the curve, and visualizing according to the coordinate matrix.
In one embodiment, the processor when executing the computer program further performs the steps of: the toxic dose equation is:
Wherein LC t represents a toxic dose; k 0、k1 is the atmospheric diffusion coefficient of the raman; n is a Rachtmann stability criterion; x and y are coordinates in two directions of space; z 1 is the value of the third direction of the space; t is the time of toxic action on personnel; r is a meteorological stability coefficient; the field environment parameters include: q, K u, u1, h being the height at z 1; u1 is the wind speed at the z 1 height; q is the leakage amount of toxic gas; k u is the gasification rate of the toxic gas.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:
Storing index systems corresponding to different toxic dose levels and toxic doses;
Acquiring current field environment parameters;
Determining a toxic dose at a specified toxic dose level according to the index system, and determining a hazard zone according to the toxic dose, the current environmental parameter and a toxic dose equation.
In one embodiment, the computer program when executed by the processor further performs the steps of: determining a hazard zone based on the poison dosage, the current environmental parameter, and a poison dosage equation, comprising: determining a plurality of two-dimensional coordinates at the poison dosage that satisfy the poison dosage equation; the plurality of two-dimensional coordinates are connected to form a closed curve, and the area surrounded by the curve is determined as the hazard area.
In one embodiment, the computer program when executed by the processor further performs the steps of: after determining the hazard zone, the method further comprises: and determining a coordinate matrix according to the characteristic points on the curve, and visualizing according to the coordinate matrix.
In one embodiment, the computer program when executed by the processor further performs the steps of: the toxic dose equation is:
Wherein LC t represents a toxic dose; k 0、k1 is the atmospheric diffusion coefficient of the raman; n is a Rachtmann stability criterion; x and y are coordinates in two directions of space; z 1 is the value of the third direction of the space; t is the time of toxic action on personnel; t is the time of action on personnel; r is a meteorological stability coefficient; the field environment parameters include: q, K u, u1, h being the height at z 1; u1 is the wind speed at the z 1 height; q is the leakage amount of toxic gas; k u is the gasification rate of the toxic gas.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in various forms such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), etc.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (10)

1. A method of hazard zone determination, the method comprising:
Storing index systems corresponding to different toxic dose levels and toxic doses;
Acquiring current field environment parameters;
Determining a poisoning dose at a specified poisoning dose level according to the index system, and determining a hazard area according to the poisoning dose, the current environmental parameter and a poisoning dose equation, wherein the determining the hazard area according to the poisoning dose, the current environmental parameter and the poisoning dose equation includes: determining a plurality of two-dimensional coordinates at the poison dosage that satisfy the poison dosage equation; the two-dimensional coordinates are connected to form a closed curve, and an area surrounded by the curve is determined to be the hazard area; the toxic dose equation is:
Wherein LC t represents a toxic dose; k 0、k1 is the atmospheric diffusion coefficient of the raman; n is a Rachtmann stability criterion; x and y are coordinates in two directions of space; z 1 is the value of the third direction of the space; t is the time of toxic action on personnel; r is a meteorological stability coefficient; the field environment parameters include: q, K u, u1, h being the height at z 1; u1 is the wind speed at the z 1 height; q is the leakage amount of toxic gas; k u is the gasification rate of the toxic gas.
2. The method of claim 1, wherein after determining the hazard zone, further comprising:
And determining a coordinate matrix according to the characteristic points on the curve, and visualizing according to the coordinate matrix.
3. The method of claim 1, wherein different of said poison dosage levels are divided into a first poison dosage, a second poison dosage, a third poison dosage, and a fourth poison dosage in order of hazard size from small to large.
4. The method of claim 1, wherein said determining a plurality of two-dimensional coordinates at the poison dosage that satisfy said poison dosage equation comprises:
Acquiring the abscissa of a plurality of points in the downwind direction according to the wind speed of the on-site acquisition point;
Determining, based on a plurality of said abscissas, ordinates corresponding to a plurality of said abscissas satisfying said poisoning dose equation at the poisoning dose;
and obtaining a plurality of two-dimensional coordinates based on the abscissas corresponding to the abscissas.
5. The method of claim 1, wherein the horizontally oriented raman atmospheric diffusion coefficient k 1＝k0 of the toxic gas is on a flat ground.
6. The method according to claim 1, wherein the raman stability criterion n has values of 1,2,3,4, 5, 6, and n has values of 1,2,3,4, 5, 6 representing A, B, C, D, E, F types of stability, respectively.
7. A hazard zone determination apparatus, the apparatus comprising:
The storage module is used for storing index systems corresponding to different poisoning dosage levels and poisoning dosages;
the acquisition module is used for acquiring current field environment parameters;
The hazard zone determining module is configured to determine a toxic dose at a specified toxic dose level according to the indicator system, and determine a hazard zone according to the toxic dose, the current environmental parameter, and a toxic dose equation, where the determining the hazard zone according to the toxic dose, the current environmental parameter, and the toxic dose equation includes: determining a plurality of two-dimensional coordinates at the poison dosage that satisfy the poison dosage equation; the two-dimensional coordinates are connected to form a closed curve, and an area surrounded by the curve is determined to be the hazard area; the toxic dose equation is:
Wherein LC t represents a toxic dose; k 0、k1 is the atmospheric diffusion coefficient of the raman; n is a Rachtmann stability criterion; x and y are coordinates in two directions of space; z 1 is the value of the third direction of the space; t is the time of toxic action on personnel; r is a meteorological stability coefficient; the field environment parameters include: q, K u, u1, h being the height at z 1; u1 is the wind speed at the z 1 height; q is the leakage amount of toxic gas; k u is the gasification rate of the toxic gas.
8. The apparatus of claim 7, wherein the hazard zone determination apparatus further comprises a visualization module to:
And determining a coordinate matrix according to the characteristic points on the curve, and visualizing according to the coordinate matrix.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 6 when the computer program is executed.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
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