Infection source analysis method and system based on livestock distribution

Abstract

The invention discloses an infection source analysis method and system based on livestock distribution, and relates to the technical field of automation control, and the method comprises the steps: collecting infection source information, analyzing the infection source information, obtaining the infection grade of each infection area, judging an infection channel and an infection source according to the infection grade of each infection area, and determining the infection source according to the infection channel and the infection source. The method comprises the following steps: setting a blocking scheme according to an infection channel and an infection source for preventing the transmission of pathogens, after the blocking scheme is implemented, obtaining and analyzing risk data of each monitored area, setting a monitoring scheme according to the risk data, collecting the infection data of each risk area, and finally carrying out early warning prompt according to the infection data of each risk area. According to the method, the monitoring and control capability of the livestock epidemic situation is improved, and the influence of the livestock epidemic situation on the breeding cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of automation control technology, and in particular to a method and system for analyzing infection sources based on poultry and livestock distribution. Background Art

[0002] With the development of my country's economy and the improvement of people's living standards, the livestock industry has developed rapidly. However, the increase in livestock density and the change in population structure have also brought many problems, such as the spread and outbreak of livestock diseases. In order to effectively prevent and control the occurrence of livestock diseases, we need to analyze the livestock distribution data, find the source of infection in time, and take corresponding preventive measures.

[0003] The current method of analyzing the sources of infection in poultry and livestock usually involves analyzing the health conditions of poultry and livestock in a single area. It does not analyze the poultry and livestock infection data in multiple areas from the perspective of poultry and livestock distribution. The information collected about the sources of infection in poultry and livestock may not be comprehensive, resulting in limitations in the analysis results. At the same time, poultry and livestock epidemics will affect poultry and livestock in other areas due to transmission channels. If the source of infection is analyzed on the health conditions of poultry and livestock in a single area, it will be impossible to prevent and control the epidemic of poultry and livestock in other areas in a timely manner, causing the epidemic to spread and causing greater losses. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a method and system for analyzing sources of infection based on poultry and livestock distribution.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides an infection source analysis method based on poultry and livestock distribution, comprising the following steps: Step 1, infection source information collection: According to the target poultry and livestock distribution data in the database, each monitoring area of ​​the target poultry and livestock is set to collect the infection data of each monitoring area of ​​the target poultry and livestock.

[0006] Step 2: Analysis of infection source information: According to the regional infection model, the infection data of each monitoring area of ​​the target poultry and livestock are analyzed to obtain the infection areas and infection levels of each infection area of ​​the target poultry and livestock. The regional information of each infection area of ​​the target poultry and livestock is obtained from the database. According to the regional information of each infection area of ​​the target poultry and livestock, the infection type of each infection area of ​​the target poultry and livestock is judged, so as to obtain the infection source and transmission route of the target poultry and livestock, and then set up a blocking plan.

[0007] Step three: Prevention of poultry and livestock infection. After the implementation of the blocking plan, the risk data of the target poultry and livestock are obtained from the infection sources and transmission routes of the target poultry and livestock. According to the regional risk model, the risk data of the target poultry and livestock are analyzed to obtain the risk areas of the target poultry and livestock and the risk level of each risk area. Then a monitoring plan is set up to collect the infection data of the risk areas of the target poultry and livestock, and early warnings are issued based on the infection data of the risk areas of the target poultry and livestock.

[0008] Preferably, the infection type of each infection area of ​​the target poultry and livestock is judged, and the specific judgment process is as follows: the regional information of each infection area of ​​the target poultry and livestock is obtained from the database, the regional information of each infection area of ​​the target poultry and livestock includes each infection channel type of the target poultry and livestock and the number of each channel area group under each channel type; according to each infection channel type of the target poultry and livestock and the number of each channel area group under each channel type, each infection area with the same number in each channel area group under each channel type is respectively summarized under each channel type; each infection area of ​​the target poultry and livestock is counted according to the corresponding infection level, so as to obtain the number of areas of each infection level in each channel area group under each infection channel type of the target poultry and livestock. , e is the transmission channel type number, , , f is the number of channel area group f, , , g is the infection level number.

[0009] Substitute the number of areas of each infection level in each channel area under each infection channel type of target poultry and livestock into the infection correlation index calculation formula The infection correlation index of the target livestock and poultry e in the f channel area under the transmission channel type is obtained , is the number of regions with the preset infection level g, is the weight factor of the number of areas with the preset infection level g, , .

[0010] The maximum infection correlation index of each channel area group under each transmission channel type of target poultry and livestock is selected as the channel infection correlation index, so as to obtain the channel infection correlation index of each transmission channel type of target poultry and livestock, and the transmission channel type of the target poultry and livestock with the maximum channel infection correlation index is recorded as the target transmission channel type, so as to obtain the target transmission channel, and the channel area group with the maximum infection correlation index under the target transmission channel of the target poultry and livestock is recorded as the target path area group, and the area with the largest infection level in the target path area group of the target poultry and livestock is selected as the source of infection. The type of infection is: the type of infection transmitted through the transmission route with the source of infection of the target poultry and livestock as the source.

[0011] On the other hand, the present invention provides an infection source analysis system based on poultry and livestock distribution, including the following modules: an infection source information collection module, used to set up each monitoring area of ​​the target poultry and livestock according to the target poultry and livestock distribution data in the database, and to collect infection data of each monitoring area of ​​the target poultry and livestock.

[0012] The infection source information analysis module is used to analyze the infection data of each monitoring area of ​​the target poultry and livestock according to the regional infection model, obtain the infection areas of the target poultry and livestock and the infection level of each infection area, obtain the regional information of each infection area of ​​the target poultry and livestock from the database, and judge the infection type of each infection area of ​​the target poultry and livestock based on the regional information of each infection area of ​​the target poultry and livestock, so as to obtain the infection source and transmission route of the target poultry and livestock, and then set up a blocking plan.

[0013] The poultry and livestock infection prevention module is used to obtain the risk data of the target poultry and livestock from the infection sources and transmission routes of the target poultry and livestock after the implementation of the blocking plan, analyze the risk data of the target poultry and livestock according to the regional risk model, obtain the risk areas of the target poultry and livestock and the risk level of each risk area, and then set up a monitoring plan to collect the infection data of the risk areas of the target poultry and livestock, and issue an early warning based on the infection data of the risk areas of the target poultry and livestock.

[0014] The beneficial effects of the present invention are: 1. The present invention first collects information on the source of infection, analyzes and determines the infection level of each monitored area, and obtains the transmission channel of the pathogen according to the infection level analysis of each monitored area, and sets up a blocking plan based on this. After the blocking plan is implemented, the risk data of each monitored area is analyzed, and a monitoring plan is set accordingly, and then the infection data of each risk area is collected, and an early warning is issued based on the infection data of each risk area. The present invention can perform accurate infection source analysis and risk assessment according to the distribution of target poultry and livestock, and then formulate targeted blocking plans and monitoring plans.

[0015] 2. The present invention can obtain the infection level of each monitoring area by analyzing the data such as the abnormal rate and mortality rate of poultry and livestock in each monitoring area. According to these levels, a suitable blocking plan can be set for each area to prevent the spread of pathogens. At the same time, the present invention can further determine high-risk areas by analyzing risk data, and set monitoring plans for these areas, so as to timely detect and control the spread of pathogens. The present invention improves the monitoring and control capabilities of poultry and livestock epidemics and reduces the impact of epidemics on the poultry and livestock economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 The present invention is a schematic flow chart of the steps for implementing the method.

[0018] Figure 2 It is a schematic diagram of the system structure connection of the present invention. DETAILED DESCRIPTION

[0019] 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.

[0020] according to Figure 1 As shown, the present invention provides an infection source analysis method based on poultry and livestock distribution, comprising the following steps: Step 1, infection source information collection: According to the target poultry and livestock distribution data in the database, each monitoring area of ​​the target poultry and livestock is set to collect the infection data of each monitoring area of ​​the target poultry and livestock.

[0021] In a specific embodiment, the setting of each monitoring area of ​​the target poultry and livestock is specifically set up as follows: obtain poultry and livestock distribution data from a database, the poultry and livestock distribution data including the breeding density and breeding quantity of the target poultry and livestock in each breeding center; if the breeding density of the target poultry and livestock in a breeding center is greater than the preset standard breeding density, or the breeding quantity of the target poultry and livestock is greater than the preset standard breeding quantity, the breeding center is recorded as the infection monitoring center of the target poultry and livestock, thereby obtaining each infection monitoring center of the target poultry and livestock, obtaining each infection distance of the target poultry and livestock from the database, calculating the average value of each infection distance of the target poultry and livestock, obtaining the standard infection distance of the target poultry and livestock, and drawing a circle with the center position of each infection monitoring center of the target poultry and livestock as the center and the standard infection distance of the target poultry and livestock as the radius, and the area inside the circle is the monitoring area of ​​the target poultry and livestock.

[0022] In a specific embodiment, the infection data of each monitoring area of ​​the target poultry and livestock are collected, and the specific collection process is as follows: the number of target poultry and livestock is identified by a camera to obtain the number of poultry and livestock in each monitoring area, and the activity distance of each poultry and livestock for a preset time period is collected. If the activity distance of a certain poultry and livestock is less than a preset value, the poultry and livestock is recorded as abnormal poultry and livestock to obtain the number of abnormal poultry and livestock in each monitoring area, and the number of abnormal poultry and livestock in each monitoring area is divided by the target number of poultry and livestock to obtain the abnormal rate of poultry and livestock in each monitoring area. At the same time, the staff inputs the number of abnormal deaths of poultry and livestock to obtain the number of dead poultry and livestock in each monitoring area, and the number of dead poultry and livestock in each monitoring area is divided by the number of livestock to obtain the poultry and livestock mortality rate in each monitoring area.

[0023] It should be noted that unnatural deaths are deaths caused by epidemics, such as avian influenza.

[0024] Step 2: Analysis of infection source information: According to the regional infection model, the infection data of each monitoring area of ​​the target poultry and livestock are analyzed to obtain the infection areas and infection levels of each infection area of ​​the target poultry and livestock. The regional information of each infection area of ​​the target poultry and livestock is obtained from the database. According to the regional information of each infection area of ​​the target poultry and livestock, the infection type of each infection area of ​​the target poultry and livestock is judged, so as to obtain the infection source and transmission route of the target poultry and livestock, and then set up a blocking plan.

[0025] In a specific embodiment, the infection data of each monitoring area of ​​the target poultry and livestock are analyzed, and the specific analysis process is as follows: the infection data of each monitoring area of ​​the target poultry and livestock include the poultry and livestock abnormality rate and the poultry and livestock mortality rate of each monitoring area of ​​the target poultry and livestock, and the infection data of each monitoring area of ​​the target poultry and livestock are input into the regional infection model to obtain the output results of each monitoring area of ​​the target poultry and livestock, and the output results are , .

[0026] If the output result of a certain monitoring area of ​​the target poultry and livestock is equal to 0, it indicates that the monitoring area is a non-infectious area. If the output result of a certain monitoring area of ​​the target poultry and livestock is greater than 0, it indicates that the monitoring area is an infected area, thereby obtaining the infected areas of the target poultry and livestock.

[0027] If the output result of a certain infection area of ​​the target livestock is equal to 1, the infection level of the infection area is recorded as level 1. If the output result of a certain infection area of ​​the target livestock is equal to 2, the infection level of the infection area is recorded as level 2. If the output result of a certain infection area of ​​the target livestock is equal to n, the infection level of the infection area is recorded as level n, where n is the maximum level of the infection level and the infection level is numbered g. , , thereby obtaining the infection level of each infection area of ​​the target poultry and livestock.

[0028] In a specific embodiment, the regional infection model is specifically set up as follows: the infection data of each monitoring area of ​​the target poultry and livestock is input into the regional infection model: , and get the output result of the target livestock monitoring area a , a is the monitoring area number, , , and are the abnormal rate and mortality rate of livestock in the monitoring area a of the target livestock, and They are the abnormal rate of poultry and livestock in the preset monitoring area and the mortality rate of poultry and livestock in the monitoring area. , and are the risk indexes of the monitoring areas with the preset infection levels of g, g+1 and n, respectively. and are respectively the weight factor of the abnormal rate of poultry and livestock in the preset monitoring area and the weight factor of the poultry and livestock mortality rate in the preset monitoring area, , , .

[0029] In a specific embodiment, the infection type of each infection area of ​​the target poultry and livestock is judged, and the specific judgment process is as follows: the regional information of each infection area of ​​the target poultry and livestock is obtained from the database, the regional information of each infection area of ​​the target poultry and livestock includes each infection channel type of the target poultry and livestock and the number of each channel area group under each channel type; according to each infection channel type of the target poultry and livestock and the number of each channel area group under each channel type, each infection area with the same number of each channel area group under each channel type is respectively summarized under each channel type; each infection area of ​​the target poultry and livestock is counted according to the corresponding infection level, so as to obtain the number of areas of each infection level of each channel area group under each infection channel type of the target poultry and livestock. , e is the transmission channel type number, , , f is the number of channel area group f, , , g is the infection level number.

[0030] It should be noted that the transmission channel is the way in which poultry and livestock are infected, such as water source pollution or feed pollution. Each channel area group under each channel type is a combination of areas with the same infection source under each way of poultry and livestock infection. For example, if the water source pollution in the transmission channel is numbered e, then the area group of each monitoring area that drinks the same water source is numbered ef. For example, in the statistical process, each infection area of ​​the f channel area group under the e channel type is summarized separately to obtain each infection area numbered ef. Each infection area numbered ef is counted separately according to the corresponding infection level. For example, the infection area with an infection level of g is counted to obtain the number of infection areas with an infection level of g numbered ef. .

[0031] Substitute the number of areas of each infection level in each channel area under each infection channel type of target poultry and livestock into the infection correlation index calculation formula The infection correlation index of the target livestock and poultry e in the f channel area under the transmission channel type is obtained , is the number of regions with the preset infection level g, is the weight factor of the number of areas with the preset infection level g, , .

[0032] The maximum infection correlation index of each channel area group under each transmission channel type of target poultry and livestock is selected as the channel infection correlation index, thereby obtaining the channel infection correlation index of each transmission channel type of target poultry and livestock, and the transmission channel type of the target poultry and livestock with the maximum channel infection correlation index is recorded as the target transmission channel type, thereby obtaining the target transmission channel, and the channel area group with the maximum infection correlation index under the target transmission channel of the target poultry and livestock is recorded as the target path area group, and the area with the largest infection level in the target path area group of the target poultry and livestock is selected as the source of infection. The infection type of the target poultry and livestock is: the infection type transmitted through the transmission route with the infection source of the target poultry and livestock as the source.

[0033] In a specific embodiment, the blocking plan is set up, and the specific setting process is as follows: the infection distance corresponding to the target transmission channel is obtained from the database, and a circle is drawn with the center position of the infection source as the center and the infection distance as the radius. The area inside the circle is the key transmission area of ​​the infection source, and the staff in each monitoring area within the key transmission area are prompted to block the target transmission channel, and at the same time, normal poultry and livestock are isolated and protected, and abnormal poultry and livestock are harmlessly treated.

[0034] With the center position of each monitoring area in the target path area group as the center and the infection distance as the radius, a circle is drawn to obtain each risk transmission area. The risk transmission areas are merged to obtain the epidemic prevention area, and the staff in each epidemic prevention area are prompted to block the target transmission channel, protect normal poultry and livestock, and isolate and observe abnormal poultry and livestock.

[0035] Step three: Prevention of poultry and livestock infection. After the implementation of the blocking plan, the risk data of the target poultry and livestock are obtained from the infection sources and transmission routes of the target poultry and livestock. According to the regional risk model, the risk data of the target poultry and livestock are analyzed to obtain the risk areas of the target poultry and livestock and the risk level of each risk area. Then a monitoring plan is set up to collect the infection data of the risk areas of the target poultry and livestock, and early warnings are issued based on the infection data of the risk areas of the target poultry and livestock.

[0036] In a specific embodiment, the risk data of the target poultry and livestock are obtained from the infection source and transmission route of the target poultry and livestock. The specific acquisition process is as follows: the center position of each monitoring area is the center of a circle, and a preset range is used as the radius to draw a circle to obtain the preset influence area of ​​each monitoring area, and the maximum number of infection areas of the same channel infection area corresponding to the preset influence area of ​​each monitoring area is obtained from the database.

[0037] It should be noted that the maximum number of infection areas of the same-channel infection areas corresponding to the preset influence area of ​​each monitoring area, for example, there are 10 other monitoring areas in the preset influence area of ​​monitoring area a, and there are 5 infection areas in the 10 other monitoring areas, which means that the number of infection areas within the preset range of monitoring area a is 5, and the area group number of monitoring area a in each infection channel is obtained from the database. If the area group numbers of 6 other monitoring areas in the 10 other monitoring areas in the infection channel b are the same as those of monitoring area a, then these 6 monitoring areas are recorded as the infection areas of the same channel b of monitoring area a. If there are 4 infection areas in these 6 monitoring areas, it means that the number of infection areas of the same channel b of monitoring area a is 4, so as to obtain the number of infection areas of each infection area of ​​the same channel of monitoring area a, and select the maximum value of the number of infection areas of each infection area of ​​the same channel of monitoring area a as the maximum number of infection areas of the same channel infection areas.

[0038] In a specific embodiment, the risk data of the target poultry and livestock are analyzed, and the specific analysis process is as follows: the risk data of the target poultry and livestock are the number of infection areas within the preset range of each monitoring area and the number of infection areas of the maximum infection channel, the risk data of the target poultry and livestock are input into the regional risk model, and the output data of each monitoring area is obtained. The output data of each monitoring area is , .

[0039] If the output data of a monitoring area of ​​the target poultry and livestock is equal to 0, it means that the monitoring area does not need to be strengthened. If the output data of a monitoring area of ​​the target poultry and livestock is greater than 0, it means that the monitoring area needs to be strengthened and is recorded as a risk area for the target poultry and livestock.

[0040] If the output result of a monitoring area of ​​the target livestock is equal to 1, the risk level of the monitoring area is recorded as level 1; if the output result of a monitoring area of ​​the target livestock is equal to 2, the risk level of the monitoring area is recorded as level 2; if the output result of a monitoring area of ​​the target livestock is equal to m, the risk level of the monitoring area is recorded as level m, where m is the maximum level of the risk level and the risk level number is h. , thereby obtaining the risk level of each monitoring area of ​​the target poultry and livestock.

[0041] In a specific embodiment, the regional risk model is specifically set up as follows: risk data of target poultry and livestock is input into the regional risk model: , get the output data of monitoring area a , a is the monitoring area number, , , and are the number of infected areas within the preset range of monitoring area a and the number of infected areas of the maximum infection channel, respectively. and are the preset number of infection areas and the number of infection areas of the maximum infection channel, respectively. , and are the standard risk indices with preset regional risk levels of h, h+1 and m, and are the weight factors of the preset number of infection areas and the weight factors of the preset number of infection areas of the maximum infection channel, respectively. , , .

[0042] In a specific embodiment, the early warning is carried out, and the specific early warning process is as follows: the standard abnormality rate and standard mortality rate of each monitoring level of the target poultry and livestock are obtained from the database. If the monitoring level of a certain monitoring area is equal to a certain monitoring level, it indicates that the standard abnormality rate and standard mortality rate of the monitoring area are the standard abnormality rate and standard mortality rate of the monitoring level, thereby obtaining the standard abnormality rate and mortality rate of each monitoring area of ​​the target poultry and livestock.

[0043] The infection data of each risk area of ​​the target poultry and livestock include the abnormality rate and mortality rate of each risk area of ​​the target poultry and livestock. When the abnormality rate of a risk area is greater than the corresponding standard abnormality rate or the mortality rate is greater than the corresponding standard mortality rate, the staff in the risk area will be prompted. At the same time, the infection distance corresponding to the target infection channel is obtained from the database, and a circle is drawn with the center position of the risk area as the center and the infection distance as the radius to obtain the transmission area of ​​the risk area, and early warning prompts are issued to other monitoring areas within the transmission area.

[0044] according to Figure 2 As shown, the present invention provides an infection source analysis system based on poultry and livestock distribution, comprising the following modules: an infection source information collection module, an infection source information analysis module, a poultry and livestock infection prevention module and a database.

[0045] The infection source information collection module is connected to the infection source information analysis module and the database respectively, and the poultry and livestock infection prevention module is connected to the infection source information analysis module.

[0046] The infection source information collection module is used to set each monitoring area of ​​the target poultry and livestock according to the target poultry and livestock distribution data in the database, and to collect the infection data of each monitoring area of ​​the target poultry and livestock.

[0047] The infection source information analysis module is used to analyze the infection data of each monitoring area of ​​the target poultry and livestock according to the regional infection model, obtain the infection areas of the target poultry and livestock and the infection level of each infection area, obtain the regional information of each infection area of ​​the target poultry and livestock from the database, and judge the infection type of each infection area of ​​the target poultry and livestock based on the regional information of each infection area of ​​the target poultry and livestock, so as to obtain the infection source and transmission route of the target poultry and livestock, and then set up a blocking plan.

[0048] The poultry and livestock infection prevention module is used to obtain the risk data of the target poultry and livestock from the infection sources and transmission routes of the target poultry and livestock after the implementation of the blocking plan, analyze the risk data of the target poultry and livestock according to the regional risk model, obtain the risk areas of the target poultry and livestock and the risk level of each risk area, and then set up a monitoring plan to collect the infection data of the risk areas of the target poultry and livestock, and issue an early warning based on the infection data of the risk areas of the target poultry and livestock.

[0049] The database is used to store the distribution data of target poultry and livestock, the infection distances of target poultry and livestock, the regional information of each infection area of ​​target poultry and livestock, and the infection distances corresponding to the target infection channels.

[0050] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined in this specification, they shall all fall within the protection scope of the present invention.

Claims

1. A method for analyzing infection sources based on poultry and livestock distribution, characterized in that: The steps include: Step 1: Collection of infection source information: According to the target livestock distribution data in the database, set up each monitoring area of ​​the target livestock to collect the infection data of each monitoring area of ​​the target livestock; Step 2: Analysis of infection source information: According to the regional infection model, the infection data of each monitoring area of ​​the target poultry and livestock are analyzed to obtain the infection areas and infection levels of each infection area of ​​the target poultry and livestock, and the regional information of each infection area of ​​the target poultry and livestock is obtained from the database. According to the regional information of each infection area of ​​the target poultry and livestock, the infection type of each infection area of ​​the target poultry and livestock is judged, so as to obtain the infection source and transmission route of the target poultry and livestock, and then set up a blocking plan; Step three: Prevention of poultry and livestock infection. After the implementation of the blocking plan, the risk data of the target poultry and livestock are obtained from the infection sources and transmission routes of the target poultry and livestock. According to the regional risk model, the risk data of the target poultry and livestock are analyzed to obtain the risk areas of the target poultry and livestock and the risk level of each risk area. Then a monitoring plan is set up to collect the infection data of the risk areas of the target poultry and livestock, and early warnings are issued based on the infection data of the risk areas of the target poultry and livestock.

2. The method for analyzing infection sources based on livestock distribution according to claim 1, characterized in that: The specific setting process of setting each monitoring area of ​​target poultry and livestock is as follows: The poultry and livestock distribution data are obtained from the database. The poultry and livestock distribution data include the breeding density and breeding quantity of the target poultry and livestock in each breeding center. If the breeding density of the target poultry and livestock in a breeding center is greater than the preset standard breeding density, or the breeding quantity of the target poultry and livestock is greater than the preset standard breeding quantity, the breeding center is recorded as the infection monitoring center of the target poultry and livestock, thereby obtaining the infection monitoring centers of the target poultry and livestock, obtaining the infection distances of the target poultry and livestock from the database, calculating the average of the infection distances of the target poultry and livestock, and obtaining the standard infection distance of the target poultry and livestock. A circle is drawn with the center position of each infection monitoring center of the target poultry and livestock as the center and the standard infection distance of the target poultry and livestock as the radius. The area inside the circle is the monitoring area of ​​the target poultry and livestock.

3. The method for analyzing infection sources based on poultry and livestock distribution according to claim 1, characterized in that: The infection data of each monitoring area of ​​the target poultry and livestock are analyzed, and the specific analysis process is as follows: The infection data of each monitoring area of ​​the target livestock include the livestock abnormality rate and livestock mortality rate of each monitoring area of ​​the target livestock. The infection data of each monitoring area of ​​the target livestock are input into the regional infection model to obtain the output results of each monitoring area of ​​the target livestock. The output results are , ; If the output result of a certain monitoring area of ​​the target poultry and livestock is equal to 0, it indicates that the monitoring area is a non-infectious area. If the output result of a certain monitoring area of ​​the target poultry and livestock is greater than 0, it indicates that the monitoring area is an infected area, thereby obtaining each infected area of ​​the target poultry and livestock; If the output result of a certain infection area of ​​the target livestock is equal to 1, the infection level of the infection area is recorded as level 1; if the output result of a certain infection area of ​​the target livestock is equal to 2, the infection level of the infection area is recorded as level 2, ..., if the output result of a certain infection area of ​​the target livestock is equal to n, the infection level of the infection area is recorded as level n, n is the maximum level of the infection level, and the infection level is numbered as g, , thereby obtaining the infection level of each infection area of ​​the target poultry and livestock.

4. The method for analyzing infection sources based on livestock distribution according to claim 3, characterized in that: The specific setting process of the regional infection model is as follows: Input the infection data of each monitoring area of ​​the target livestock into the regional infection model: , and get the output result of the target livestock monitoring area a , a is the monitoring area number, , , and are the abnormal rate and mortality rate of livestock in the monitoring area a of the target livestock, and They are the abnormal rate of poultry and livestock in the preset monitoring area and the mortality rate of poultry and livestock in the monitoring area. , and are the risk indexes of the monitoring areas with the preset infection levels of g, g+1 and n, respectively. and are respectively the weight factor of the abnormal rate of poultry and livestock in the preset monitoring area and the weight factor of the poultry and livestock mortality rate in the preset monitoring area, , , .

5. The method for analyzing infection sources based on livestock distribution according to claim 4, characterized in that: The infection type of each infection area of ​​the target poultry and livestock is judged, and the specific judgment process is as follows: The regional information of each infection area of ​​the target poultry and livestock is obtained from the database. The regional information of each infection area of ​​the target poultry and livestock includes each infection channel type of the target poultry and livestock and the number of each channel area group under each channel type. According to each infection channel type of the target poultry and livestock and the number of each channel area group under each channel type, each infection area with the same number of each channel area group under each channel type is summarized under each channel type, and each infection area of ​​the target poultry and livestock is counted according to the corresponding infection level to obtain the number of areas of each infection level of each channel area group under each infection channel type of the target poultry and livestock. , e is the transmission channel type number, , , f is the number of channel area group f, , , g is the infection level number; Substitute the number of areas of each infection level in each channel area under each infection channel type of target poultry and livestock into the infection correlation index calculation formula The infection correlation index of the target livestock and poultry e in the f channel area under the transmission channel type is obtained , is the number of regions with the preset infection level g, is the weight factor of the number of areas with the preset infection level g, , ; The maximum infection correlation index of each channel area group under each transmission channel type of target poultry and livestock is selected as the channel infection correlation index, so as to obtain the channel infection correlation index of each transmission channel type of target poultry and livestock, and the transmission channel type of the target poultry and livestock with the maximum channel infection correlation index is recorded as the target transmission channel type, so as to obtain the target transmission channel, and the channel area group with the maximum infection correlation index under the target transmission channel of the target poultry and livestock is recorded as the target path area group, and the area with the largest infection level in the target path area group of the target poultry and livestock is selected as the source of infection. The type of infection is: the type of infection transmitted through the transmission route with the source of infection of the target poultry and livestock as the source.

6. The method for analyzing infection sources based on livestock distribution according to claim 5, characterized in that: The specific setting process of setting the blocking scheme is as follows: Obtain the infection distance corresponding to the target infection channel from the database, draw a circle with the center of the infection source as the center and the infection distance as the radius. The area inside the circle is the key transmission area of ​​the infection source, and prompt the staff in each monitoring area in the key transmission area to block the target infection channel, isolate and protect normal poultry and livestock, and render abnormal poultry and livestock harmless; A circle is drawn with the center position of each monitoring area in the target path area group as the center and the infection distance as the radius. The area within the park is the risk transmission area. The risk transmission areas are merged to obtain the epidemic prevention area. The staff in each epidemic prevention area are prompted to block the target transmission channel, protect normal poultry and livestock, and isolate and observe abnormal poultry and livestock.

7. The method for analyzing infection sources based on livestock distribution according to claim 1, characterized in that: The risk data of the target poultry and livestock are analyzed, and the specific analysis process is as follows: The risk data of target poultry and livestock are the number of infected areas within the preset range of each monitoring area and the number of infected areas with the maximum infection channel. The risk data of target poultry and livestock are input into the regional risk model to obtain the output data of each monitoring area. The output data of each monitoring area is , ; If the output data of a monitoring area of ​​the target livestock is equal to 0, it means that the monitoring area does not need to be strengthened. If the output data of a monitoring area of ​​the target livestock is greater than 0, it means that the monitoring area needs to be strengthened and is recorded as a risk area for the target livestock. If the output result of a monitoring area of ​​the target livestock is equal to 1, the risk level of the monitoring area is recorded as level 1; if the output result of a monitoring area of ​​the target livestock is equal to 2, the risk level of the monitoring area is recorded as level 2; if the output result of a monitoring area of ​​the target livestock is equal to m, the risk level of the monitoring area is recorded as level m, where m is the maximum level of the risk level and the risk level number is h. , thereby obtaining the risk level of each monitoring area of ​​the target poultry and livestock.

8. The method for analyzing infection sources based on livestock distribution according to claim 7, characterized in that: The specific setting process of the regional risk model is as follows: Input the risk data of target livestock into the regional risk model: , get the output data of monitoring area a , a is the monitoring area number, , , and are the number of infected areas within the preset range of monitoring area a and the number of infected areas of the maximum infection channel, respectively. and are the preset number of infection areas and the number of infection areas of the maximum infection channel, respectively. , and are the standard risk indices with preset regional risk levels of h, h+1 and m, and are the weight factors of the preset number of infection areas and the weight factors of the preset number of infection areas of the maximum infection channel, respectively. , , .

9. The method for analyzing infection sources based on poultry and livestock distribution according to claim 1, characterized in that: The specific early warning process is as follows: Obtaining the standard abnormality rate and standard mortality rate of each monitoring level of the target poultry and livestock from the database. If the monitoring level of a certain monitoring area is equal to a certain monitoring level, it indicates that the standard abnormality rate and standard mortality rate of the monitoring area are the standard abnormality rate and standard mortality rate of the monitoring level, thereby obtaining the standard abnormality rate and mortality rate of each monitoring area of ​​the target poultry and livestock; The infection data of each risk area of ​​the target poultry and livestock include the abnormality rate and mortality rate of each risk area of ​​the target poultry and livestock. When the abnormality rate of a risk area is greater than the corresponding standard abnormality rate or the mortality rate is greater than the corresponding standard mortality rate, the staff in the risk area will be prompted. At the same time, the infection distance corresponding to the target infection channel is obtained from the database, and a circle is drawn with the center position of the risk area and the infection distance as the radius to obtain the transmission area of ​​the risk area, and early warning prompts are issued to other monitoring areas within the transmission area.

10. An infection source analysis system based on livestock distribution using the infection source analysis method based on livestock distribution according to any one of claims 1 to 9, characterized in that: Includes the following modules: The infection source information collection module is used to set each monitoring area of ​​the target poultry and livestock according to the target poultry and livestock distribution data in the database, and to collect the infection data of each monitoring area of ​​the target poultry and livestock; The infection source information analysis module is used to analyze the infection data of each monitoring area of ​​the target poultry and livestock according to the regional infection model, obtain the infection areas of the target poultry and livestock and the infection level of each infection area, obtain the regional information of each infection area of ​​the target poultry and livestock from the database, and judge the infection type of each infection area of ​​the target poultry and livestock according to the regional information of each infection area of ​​the target poultry and livestock, so as to obtain the infection source and transmission route of the target poultry and livestock, and then set a blocking plan; The poultry and livestock infection prevention module is used to obtain the risk data of the target poultry and livestock from the infection sources and transmission routes of the target poultry and livestock after the implementation of the blocking plan, analyze the risk data of the target poultry and livestock according to the regional risk model, obtain the risk areas of the target poultry and livestock and the risk level of each risk area, and then set up a monitoring plan to collect the infection data of the risk areas of the target poultry and livestock, and issue an early warning based on the infection data of the risk areas of the target poultry and livestock.

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