CN112908432A - Method and device for determining hazardous area, computer equipment and storage medium - Google Patents

Method and device for determining hazardous area, computer equipment and storage medium Download PDF

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CN112908432A
CN112908432A CN202011641302.9A CN202011641302A CN112908432A CN 112908432 A CN112908432 A CN 112908432A CN 202011641302 A CN202011641302 A CN 202011641302A CN 112908432 A CN112908432 A CN 112908432A
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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 method and a device for determining a hazard area, 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 obtaining current field environment parameters; and finally, determining the toxic dose under the designated toxic dose level according to the index system, and quickly and accurately determining the hazard area according to the toxic dose, the current environmental parameters and the toxic dose equation, wherein the determined hazard area has high accuracy.

Description

Method and device for determining hazardous area, computer equipment and storage medium
Technical Field
The application relates to the technical field of dangerous chemical accident risk assessment, in particular to a method and a device for determining a hazardous area, computer equipment and a storage medium.
Background
Because hazardous chemical substance accidents are highly dangerous, analysis and calculation of the degree of harm in emergency treatment is a need to quickly control situation development and reduce personnel and property losses.
At present, the evaluation of the degree of harm of chemicals is estimated according to subjective experiences of experts in the field of hazardous chemicals and decision makers, and the result lacks timeliness and stability, and is high in subjectivity and low in accuracy.
Disclosure of Invention
In view of the above, it is necessary to provide a method, an apparatus, a computer device and a storage medium for determining a hazardous area, which can improve accuracy of determining the hazardous area.
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;
and determining a toxic dose under a specified toxic dose level according to the index system, and determining a hazard area according to the toxic dose, the current environmental parameters and a toxic dose equation.
In one embodiment, determining the hazard zone based on the toxic dose, the current environmental parameter, and a toxic dose equation comprises:
determining a plurality of two-dimensional coordinates satisfying the toxic dose equation under the toxic dose;
the two-dimensional coordinates are connected to form a closed curve, and an area enclosed by the curve is determined as the hazard area.
In one embodiment, after determining the hazard zone, the method further includes:
and determining a coordinate matrix according to the characteristic points on the curve, and performing visualization according to the coordinate matrix.
In one embodiment, the toxic dose equation is:
Figure BDA0002880479610000021
Figure BDA0002880479610000022
Figure BDA0002880479610000023
wherein LCtIndicates a toxic dose; k is a radical of0、k1Is the Lattman atmospheric diffusion coefficient; n is a criterion of the stability of the Rahmen; x and y are coordinates in two directions of the space; z is a radical of1Taking the value in a third spatial direction; t is the time of toxic action on human; r is a meteorological stability coefficient;
the field environment parameters include: q, KuU1, h is z1The height of (d); u1 is said z1Wind speed at altitude; q is the leakage amount of the toxic gas; kuThe vaporization rate of the poisoning gas.
A hazard zone determination apparatus, the apparatus comprising:
the storage module is used for storing different toxic dose levels and index systems corresponding to the toxic doses;
the acquisition module is used for acquiring current field environment parameters;
and the hazard area determining module is used for determining a toxic dose under a specified toxic dose level according to the index system and determining a hazard area according to the toxic dose, the current environmental parameters and a toxic dose equation.
In one embodiment, the hazard zone determination module is further configured to:
determining a plurality of two-dimensional coordinates satisfying the toxic dose equation under the toxic dose;
and 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 apparatus further comprises a visualization module for:
and determining a coordinate matrix according to the characteristic points on the curve, and performing visualization according to the coordinate matrix.
In one embodiment, the toxic dose equation is:
Figure BDA0002880479610000024
Figure BDA0002880479610000025
Figure BDA0002880479610000026
wherein LCtIndicates a toxic dose; k is a radical of0、k1Is the Lattman atmospheric diffusion coefficient; n is a criterion of the stability of the Rahmen; x and y are coordinates in two directions of the space; z is a radical of1Taking the value in a third spatial direction; t is the time of toxic action on human; t is the time of action on the person; r is a meteorological stability coefficient;
the field environment parameters include: q, KuU1 and h, h is the height of the on-site acquisition point; h is z1The height of (d); u1 is said z1Wind speed at altitude; q is the leakage amount of the toxic gas; kuThe gasification rate of the toxic gas.
A computer device comprising a memory storing a computer program and a processor implementing the following steps when the processor executes the computer program:
storing index systems corresponding to different toxic dose levels and toxic doses;
acquiring current field environment parameters;
and determining a toxic dose under a specified toxic dose level according to the index system, and determining a hazard area according to the toxic dose, the current environmental parameters and a toxic dose equation.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
storing index systems corresponding to different toxic dose levels and toxic doses;
acquiring current field environment parameters;
and determining a toxic dose under a specified toxic dose level according to the index system, and determining a hazard area according to the toxic dose, the current environmental parameters and a toxic dose equation.
According to the method, the device, the computer equipment and the storage medium for determining the hazard areas, firstly, index systems with different poison dose levels and corresponding poison doses are stored; then obtaining current field environment parameters; and finally, determining the toxic dose under the designated toxic dose level according to the index system, and quickly and accurately determining the hazard area according to the toxic dose, the current environmental parameters and the toxic dose equation, wherein the determined hazard area has high accuracy.
Drawings
FIG. 1 is a schematic flow chart of a method for determining a hazard zone in one embodiment;
FIG. 2 is a schematic flow chart of the visualization step in another embodiment;
FIG. 3 is a block diagram of the hazardous area determining device in one embodiment;
FIG. 4 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Chemical disaster accidents are various, wherein large-scale poison leakage accidents caused by explosion are the most harmful, and the harm is large and reaches hundreds of kilometers in time. With the continuous expansion of the production scale of modern chemical enterprises, more and more dangerous goods are produced and stored, and toxic, harmful, flammable and explosive chemical substances are not lacked. The embodiment of the application provides a method for determining a hazardous area, which can be used for rapidly and accurately determining the hazardous area of a hazardous chemical leakage accident.
In an embodiment, as shown in fig. 1, a method for determining a hazardous area is provided, and this embodiment is illustrated by applying the method to a terminal, it is to be 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 is implemented by interaction between the terminal and the server. In this embodiment, the method includes the steps of:
and step 102, storing index systems corresponding to different toxic dose levels and toxic doses.
Wherein, the index system refers to the corresponding relationship, and the index system corresponding to different toxic dose levels and toxic doses refers to the corresponding relationship between different toxic dose levels and toxic doses. The index system can also comprise corresponding relations between different toxic dose levels and toxic doses under different hazardous chemical classes.
The different hazardous chemicals can be formaldehyde, sulfur dioxide, chlorine, chloropropene and other toxic gases. The different poisoning dose levels can be divided into a first poisoning dose, a second poisoning dose, a third poisoning dose and a fourth poisoning dose according to the hazard size from small to large, wherein the first poisoning dose represents a slight poisoning dose, the second poisoning dose represents a medium poisoning dose, the third poisoning dose represents a heavy poisoning dose, and the fourth poisoning dose represents a lethal dose.
Specifically, the corresponding relation between different toxic dose levels and toxic doses of different dangerous chemicals is constructed according to the physicochemical properties and toxicity of the different dangerous chemicals. The corresponding relationship may further include toxicity levels of different hazardous chemicals, and the hazardous chemicals may be classified according to the toxicity levels of the different hazardous chemicals, for example, the toxicity levels of formaldehyde and sulfur dioxide are set to 1 level, and the toxicity levels of chlorine and chloropropene are set to 2 levels. The established corresponding relationship between the toxic dose levels and the toxic doses of the different hazardous chemicals is stored in a database, and may be stored in a two-dimensional table form, or may be stored in a key value pair form, which is not limited herein.
According to the empirical data of the historical dangerous chemical accidents, the following steps are known: the time for the people causing serious injury to contact high concentration is generally not more than 30min, the total influence time of accidents is mostly within 60min, the closer to a leakage source, the higher the concentration is, and the heavier the casualties are. 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 dose, the second poisoning dose, the third poisoning dose and the fourth poisoning dose, so that personnel can be reminded to take corresponding measures according to different hazard areas, and the situation development can be controlled in time.
And 104, acquiring current field environment parameters.
Specifically, the field acquisition equipment acquires the field environmental data at the current moment, and the environmental data is processed to obtain the environmental parameters. Environmental parameters may include height of site collection point, wind speed, temperature, and amount of toxic gas leakage, rate of gasification, etc. The height of the field acquisition point may be detected by the barometric sensor to detect a change in atmospheric pressure, so as to calculate the change in height, and obtain the height of the field acquisition point, or the height of the field acquisition point and the three-dimensional coordinates of the acquisition point may be obtained by the distance measurement sensor, which is not limited in this 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 amount, gasification rate and the like are determined by measuring the concentration of the toxic gas at multiple positions and a toxic gas concentration expression. The gas concentration sensor can be placed at multiple points around the dangerous chemical substance, the closer the gas concentration sensor is to the placing source of the dangerous chemical substance, the more accurate the poison gas concentration acquired during accidents, and the more accurate the calculated environmental parameters, so that the accuracy of dangerous areas is improved. If the concentration of dangerous chemicals of the leakage source in the accident can not be collected, the concentration of the toxic gas of the leakage source can be determined by big data analysis through collecting the concentrations of the toxic gas of other multiple collection points.
A plurality of environment acquisition sensors can be arranged around the environment of the hazardous chemical substance to acquire environment data in real time, the terminal analyzes whether the environment data at the current moment is abnormal or not, and when abnormal data is found, a hazardous area calculation step is triggered.
When a person is exposed to a toxic gas field having a concentration, the injury will vary with the toxicity of the gas and the concentration, duration of exposure, and individual health attributes of the person. Generally, at higher concentrations, acute poisoning (even fatal) can occur with short contact times; at higher concentrations, chronic cumulative toxicities may also result from prolonged contact. Therefore, the environmental parameters need to be rapidly calculated according to the data acquired on site, so that the hazard area can be rapidly determined, and the timeliness of determining the hazard area can be improved.
And 106, determining a toxic dose under the designated toxic dose level according to the index system, and determining a harmful 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 constructing corresponding relations between different toxic dose levels and toxic doses of different hazardous chemicals from physicochemical properties and toxicity of the different hazardous chemicals, obtaining a first toxic dose, a second toxic dose, a third toxic dose and a fourth toxic dose corresponding to the hazardous chemicals, bringing the first toxic dose into one side of a toxic dose equation, bringing current field environment parameters into the other side of the toxic dose equation, and solving and determining a hazard region corresponding to the first toxic dose. The same applies to the determination of the hazard regions corresponding to the second poisoning dose, the third poisoning dose, and the fourth poisoning dose, which are not repeated here.
In the method for determining the hazardous area, firstly, index systems with different toxic dose levels and corresponding toxic doses are stored; then obtaining current field environment parameters; and finally, determining the toxic dose under the designated toxic dose level according to the index system, and quickly and accurately determining the hazard area according to the toxic dose, the current environmental parameters and the toxic dose equation, wherein the determined hazard area has high accuracy.
In one embodiment, determining a hazard zone based on the poison dose, the current environmental parameter, and a poison dose equation comprises:
determining a plurality of two-dimensional coordinates satisfying the toxic dose equation under the toxic dose;
the two-dimensional coordinates are connected to form a closed curve, and an area enclosed by the curve is determined as the hazard area.
Specifically, according to the wind speed of a field collection point, the abscissa of any point in the downwind direction is obtained, and then the ordinate meeting the toxic dose equation under the specified toxic dose is determined. And determining the vertical coordinates of the plurality of points according to the horizontal coordinates of the plurality of points in the downwind direction, and further obtaining a plurality of two-dimensional coordinates. And then connecting the plurality of two-dimensional coordinates to form a closed curve, wherein the area enclosed by the curve is the hazard area corresponding to the specified toxic dose.
Firstly, collecting current field environment parameters and dangerous chemical samples, and identifying toxicity according to the collected dangerous chemical samples to determine the types of dangerous chemicals. And then acquiring the poison dose under the appointed poison dose level from a stored index system corresponding to different poison dose levels and poison doses, and determining a plurality of two-dimensional coordinates (namely, hazard coordinates) meeting the poison dose equation under the poison dose. The two-dimensional coordinates are connected to form a closed curve, and an area enclosed by the curve is determined as the hazard area. And finally, visually presenting the hazardous area, as shown in fig. 2, which is a hazardous area map of hazardous chemical substance diffusion.
In the embodiment, the influence of artificial subjective factors is reduced through quantitative analysis of the field data of the hazardous chemical substances, and the timeliness of decision assistance can be improved through rapid calculation of the hazardous 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 performing visualization according to the coordinate matrix.
Specifically, the poison dose at the appointed poison dose level is obtained from the stored index system corresponding to different poison dose levels and poison doses, and a plurality of two-dimensional coordinates meeting the poison dose equation under the poison dose are determined. And then constructing a corresponding coordinate matrix by using the obtained plurality of two-dimensional coordinates, and performing visual presentation on the coordinate matrix by using a GIS Bezier curve technology according to the wind direction of the field acquisition point. In practical application, the coordinate matrixes of the hazard regions 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 of the first hazard region, the second hazard region, the third hazard region and the fourth hazard region corresponding to different poisoning doses can be visually presented. Certainly, in practical application, along with the change of environmental data, the hazard areas corresponding to different poison dose levels can be updated in real time according to the field environmental data collected in real time.
In hazardous chemical accidents, wind speed at the scene of the accident is a major factor affecting the spread of toxic gases. Corresponding to the actual situation, the wind speed is also the most variable factor under different meteorological conditions. Therefore, the present embodiment visualizes the hazardous area according to the real-time wind speed of the on-site collection point, and the direction of the hazardous area may be different under different wind directions.
In the embodiment, the hazard areas corresponding to the accidents can be displayed more quickly, intuitively and accurately by visually displaying the hazard areas corresponding to different poison dose levels, so that a decision maker can conveniently and quickly take corresponding measures to respond according to the display result, the situation development is quickly controlled, and casualties are reduced.
In one embodiment, the toxic dose equation is:
Figure BDA0002880479610000071
Figure BDA0002880479610000072
Figure BDA0002880479610000081
wherein LCtIndicates a toxic dose; k is a radical of0、k1Is the Lattman atmospheric diffusion coefficient; n is a criterion of the stability of the Rahmen; x and y are coordinates in two directions of the space; z is a radical of1Taking the value in a third spatial direction; t is the time of toxic action on human; t is the time of action on the person; r is a meteorological stability coefficient;
the field environment parameters include: q, KuU1, h is z1The height of (d); u1 is said z1Wind speed at altitude; q is the leakage amount of the toxic gas; kuThe vaporization rate of the poisoning gas.
Specifically, r refers to a meteorological stability coefficient, and the value of the stability coefficient can be obtained according to a method recommended by the national GB-3840 standard. The Rahmen stability criterion n can take values of 1, 2, 3, 4, 5 and 6, which respectively represent A, B, C, D, E, F types of stability, and corresponding coefficient values are selected according to the field environment stability (air pressure, wind speed and other conditions). k is a radical of0、k1The diffusion coefficient of the poisonous gas in the horizontal direction on flat ground is k1＝k0。
The toxic dose of the hazardous chemical to the human body can be obtained by multiplying the concentration of the hazardous chemical to the action time of the human body, so that the toxic dose equation can be obtained by integrating the expression of the change of the concentration of the toxic gas along with the time in the action time. In this embodiment, only the toxic gas dose distribution on the ground is considered, that is, the z values of the coordinates in three directions of the toxic dose equation are set to be 0; only x and y in the toxic dose equation are not determined, the abscissa (namely x) of any point of the wind direction is taken down, the ordinate (namely y) can be obtained according to the following formula, and a two-dimensional coordinate can be determined, wherein delta t in the expression of y represents the acting time of the hazardous chemical on unprotected personnel. A closed curve is formed by connecting a plurality of two-dimensional coordinates, and the area enclosed by the curve is the hazard area corresponding to the appointed toxic dose.
Figure BDA0002880479610000082
In the embodiment, various field data acquisition devices can be placed in a place where hazardous chemicals are placed to acquire environmental data around the hazardous chemicals in real time, so that the safety of the hazardous chemicals is analyzed, and once an abnormality is found, the hazard region calculation method is triggered immediately.
In order to easily understand the technical solution provided by the embodiment of the present application, a complete process for determining a hazardous area is used to briefly describe the hazardous area determining method provided by the embodiment of the present application:
(1) storing index systems corresponding to different toxic dose levels and toxic doses;
(2) acquiring current field environment parameters;
(3) determining a toxic dose under a designated toxic dose level according to the index system, and determining a plurality of two-dimensional coordinates meeting the toxic dose equation under the toxic dose according to the toxic dose, the current environmental parameters and the toxic dose equation;
the toxic dose equation is as follows:
Figure BDA0002880479610000091
(4) the two-dimensional coordinates are connected to form a closed curve, and an area surrounded by the curve is determined as the hazard area;
(5) and determining a coordinate matrix according to the characteristic points on the curve, and performing visualization according to the coordinate matrix.
In one embodiment, as shown in fig. 3, there is provided a hazard zone determining apparatus comprising: a storage module 302, an acquisition module 304, and a hazard zone determination module 306, wherein:
and the storage module 302 is used for storing index systems corresponding to different toxic dose levels and toxic doses.
And an obtaining module 304, configured to obtain the current field environment parameter.
A hazard area determination module 306, configured to determine a poison dose at a specified poison dose level according to the index system, and determine a hazard area according to the poison dose, the current environmental parameter, and a poison dose equation.
In one embodiment, the hazard zone determination module 306 is further to:
determining a plurality of two-dimensional coordinates satisfying the toxic dose equation under the toxic dose;
and 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 apparatus further comprises a visualization module to:
and determining a coordinate matrix according to the characteristic points on the curve, and performing visualization according to the coordinate matrix.
In one embodiment, the toxic dose equation is:
Figure BDA0002880479610000101
Figure BDA0002880479610000102
Figure BDA0002880479610000103
wherein LCtIndicates a toxic dose; k is a radical of0、k1Is the Lattman atmospheric diffusion coefficient; n is a criterion of the stability of the Rahmen; x and y are coordinates in two directions of the space; z is a radical of1Taking the value in a third spatial direction; t is the time of toxic action on human; t is the time of action on the person; r is a meteorological stability coefficient;
the field environment parameters include: q, KuU1, h is z1The height of (d); u1 is said z1Wind speed at altitude; q is the leakage amount of the toxic gas; kuThe gasification rate of the toxic gas.
For the specific definition of the hazard zone determination device, reference may be made to the above definition of the hazard zone determination method, which is not described herein again. The various modules in the hazard zone determining apparatus described above may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram 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 comprises a nonvolatile 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 an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication 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, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 4 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain 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 a computer program stored therein, the processor implementing the following steps when executing the computer program:
storing index systems corresponding to different toxic dose levels and toxic doses;
acquiring current field environment parameters;
and determining a toxic dose under a specified toxic dose level according to the index system, and determining a hazard area according to the toxic dose, the current environmental parameters and a toxic dose equation.
In one embodiment, the processor, when executing the computer program, further performs the steps of: determining a hazard area according to the poison dose, the current environmental parameter and a poison dose equation, comprising: determining a plurality of two-dimensional coordinates satisfying the toxic dose equation under the toxic dose; the two-dimensional coordinates are connected to form a closed curve, and an area enclosed 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 area, the method further comprises: and determining a coordinate matrix according to the characteristic points on the curve, and performing visualization 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:
Figure BDA0002880479610000111
Figure BDA0002880479610000112
Figure BDA0002880479610000113
wherein LCtIndicates a toxic dose; k is a radical of0、k1Is the Lattman atmospheric diffusion coefficient; n is a criterion of the stability of the Rahmen; x and y are coordinates in two directions of the space; z is a radical of1Taking the value in a third spatial direction; t is the time of toxic action on human; r is a meteorological stability coefficient; the field environment parameters include: q, KuU1, h is z1The height of (d); u1 is said z1Wind at heightSpeed; q is the leakage amount of the toxic gas; kuThe vaporization rate of the poisoning 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;
and determining a toxic dose under a specified toxic dose level according to the index system, and determining a hazard area according to the toxic dose, the current environmental parameters and a toxic dose equation.
In one embodiment, the computer program when executed by the processor further performs the steps of: determining a hazard area according to the poison dose, the current environmental parameter and a poison dose equation, comprising: determining a plurality of two-dimensional coordinates satisfying the toxic dose equation under the toxic dose; the two-dimensional coordinates are connected to form a closed curve, and an area enclosed 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 area, the method further comprises: and determining a coordinate matrix according to the characteristic points on the curve, and performing visualization 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:
Figure BDA0002880479610000121
Figure BDA0002880479610000122
Figure BDA0002880479610000123
wherein LCtIndicates a toxic dose; k is a radical of0、k1Is the Lattman atmospheric diffusion coefficient; n is a criterion of the stability of the Rahmen; x and y are coordinates in two directions of the space; z is a radical of1Taking the value in a third spatial direction; t is the time of toxic action on human; t is the time of action on the person; r is a meteorological stability coefficient; the field environment parameters include: q, KuU1, h is z1The height of (d); u1 is said z1Wind speed at altitude; q is the leakage amount of the toxic gas; kuThe vaporization rate of the poisoning gas.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A method for hazard zone determination, the method comprising:
storing index systems corresponding to different toxic dose levels and toxic doses;
acquiring current field environment parameters;
and determining a toxic dose under a specified toxic dose level according to the index system, and determining a hazard area according to the toxic dose, the current environmental parameters and a toxic dose equation.
2. The method of claim 1, wherein said determining a hazard zone based on the poison dose, the current environmental parameters, and a poison dose equation comprises:
determining a plurality of two-dimensional coordinates satisfying the toxic dose equation under the toxic dose;
and the two-dimensional coordinates are connected to form a closed curve, and an area surrounded by the curve is determined as the hazard area.
3. The method of claim 2, wherein after determining the hazard zone, further comprising:
and determining a coordinate matrix according to the characteristic points on the curve, and performing visualization according to the coordinate matrix.
4. The method of claim 1, wherein the toxic dose equation is:
Figure FDA0002880479600000011
Figure FDA0002880479600000012
Figure FDA0002880479600000013
wherein LCtIndicates a toxic dose; k is a radical of0、k1Is the Lattman atmospheric diffusion coefficient; n is a criterion of the stability of the Rahmen; x and y are coordinates in two directions of the space; z is a radical of1Taking the value in a third spatial direction; t is the time of toxic action on human; r is a meteorological stability coefficient;
the field environment parameters include: q, KuU1, h is z1The height of (d); u1 is said z1Wind speed at altitude; q is the leakage amount of the toxic gas; kuThe gasification rate of the toxic gas.
5. A hazardous area determining apparatus, characterized in that the apparatus comprises:
the storage module is used for storing different toxic dose levels and index systems corresponding to the toxic doses;
the acquisition module is used for acquiring current field environment parameters;
and the hazard area determination module is used for determining a poison dose under a specified poison dose level according to the index system and determining a hazard area according to the poison dose, the current environmental parameters and a poison dose equation.
6. The apparatus of claim 5, wherein the hazard zone determination module is further to:
determining a plurality of two-dimensional coordinates satisfying the toxic dose equation under the toxic dose;
and the two-dimensional coordinates are connected to form a closed curve, and an area surrounded by the curve is determined as the hazard area.
7. The apparatus of claim 6, 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 performing visualization according to the coordinate matrix.
8. The device of claim 5, wherein the toxic dose equation is:
Figure FDA0002880479600000021
Figure FDA0002880479600000022
Figure FDA0002880479600000023
wherein LCtIndicates a toxic dose; k is a radical of0、k1Is the Lattman atmospheric diffusion coefficient; n is a criterion of the stability of the Rahmen; x and y are coordinates in two directions of the space; z is a radical of1Taking the value in a third spatial direction; t is the time of toxic action on human; r is a meteorological stability coefficient;
the field environment parameters include: q, KuU1, h is z1The height of (d); u1 is said z1Wind speed at altitude; q is the leakage amount of the toxic gas; kuThe gasification rate of the toxic gas.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 4.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 4.
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