CN117592790B - Regional alarm method and system - Google Patents
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Abstract
The invention provides a regional alarm method and a regional alarm system, which belong to the technical field of community management and specifically comprise the following steps: the method comprises the steps of determining the decomposition security risks of different time periods based on the flow rate and the detention time of people in different areas in each time period of a current date, dividing the time period into a risk time period and other time periods through decomposition security risks, determining the initial evaluation quantity of the security risks of the current date through decomposition security risks of the risk time period and other time periods, determining the evaluation quantity of the security risks of the current date in combination with the evaluation security risks, determining the comprehensive security risk evaluation quantity of a designated community on the current date according to the date of the security risks, the security risk evaluation quantity of different dates and the security risk evaluation quantity of the current date in the latest preset time, and determining whether an early warning signal needs to be sent according to the comprehensive security risk evaluation quantity, so that the comprehensiveness and accuracy of the evaluation of the security risks are improved.
Description
Technical Field
The invention belongs to the technical field of community management, and particularly relates to a regional alarm method and a regional alarm system.
Background
For large communities in cities, particularly communities with more leasing personnel, the difficulty of safety management in communities is increased due to more external mobile personnel, so that the technical problem of how to identify and alarm management mobile personnel in monitoring areas in communities is urgent to be solved.
In order to realize the identification and alarm management of mobile personnel in a monitoring area in a community, the monitoring of a mobile population is realized through a video monitoring device in the prior art, and risk analysis is carried out according to a monitoring result, specifically, a plurality of alarm kiosks are arranged in CN202110564703.7 'an artificial intelligent early warning system for mobile population based on cloud computing', so that multi-point coverage is realized, the diversity of acquired data is ensured, the real-time performance and accuracy of risk early warning are ensured, but the following technical problems exist:
in the prior art, the judgment of comprehensive risks of the people flow in different places is ignored, specifically, the theft risks of specific places in the community, such as an express placement area, a vehicle parking area and the like, are obviously higher, and therefore if the judgment of comprehensive risks cannot be carried out by combining the people flow in different areas, the accurate assessment of the safety state of the community cannot be accurately realized.
When the risk early warning is carried out, the determination of the risk early warning is neglected by combining the safety risks of different dates in the adjacent time, the real safety state cannot be truly reflected in the traffic of a certain period of a certain day, the safety risks of different dates in the adjacent time can more accurately reflect the safety state of a community, and meanwhile, whether the safety measures meet the requirements or not can be accurately reflected, so that if the differential risk early warning can not be carried out by combining the factors, the safety of the community can not be ensured.
Aiming at the technical problems, the invention provides a regional alarm method and a regional alarm system.
Disclosure of Invention
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
according to one aspect of the present invention, a zone alarm method is provided.
The regional alarm method is characterized by comprising the following steps of:
s1, determining the estimated safety risk of the designated community based on the people flow on the current date and the people flow with the detention time of different areas larger than the preset time, and entering the next step when the safety risk exists in the designated community based on the estimated safety risk;
s2, dividing the current date into a plurality of time periods based on preset time length, determining decomposition security risks of different time periods according to the flow rate and the residence time of people in different areas in each time period, and dividing the time period into a risk time period and other time periods according to the decomposition security risks;
s3, determining the initial evaluation amount of the security risk of the current date through the decomposition security risk of the risk time period and other time periods, determining the evaluation amount of the security risk of the designated community on the current date by combining the evaluation security risk, determining whether the designated community has the security risk or not through the evaluation amount of the security risk, outputting an alarm signal if yes, and entering the next step if no;
s4, determining the comprehensive security risk assessment value of the designated community on the current date according to the date with the security risk in the latest preset time, the security risk assessment values of different dates and the security risk assessment value of the current date, and determining whether an early warning signal needs to be sent or not according to the comprehensive security risk assessment value.
The invention has the beneficial effects that:
1. the safety risk assessment method has the advantages that the safety risk assessment of the designated community is determined based on the people flow on the current date and the people flow with the detention time of different areas larger than the preset time, the people flow data on the current date are considered, meanwhile, the detention time of the people flow on the current date is comprehensively considered, the date with the safety risk is screened, and the technical problem of low assessment efficiency caused by uniformly adopting the same safety risk assessment mode is avoided.
2. The time-division assessment of the safety risk of the current date is realized by decomposing the safety risk and dividing the risk time period and other time periods, the difference of the safety risks of different time periods of the same date is fully considered, and meanwhile, a foundation is laid for further realizing the screening of the date with high safety risk by determining the risk time period.
3. The method has the advantages that the initial evaluation of the safety risk on the current date and the evaluation of the safety risk are integrated to determine the safety risk evaluation quantity of the designated community on the current date, so that the single evaluation safety risk on the current date, namely the overall risk analysis condition, is considered, and meanwhile, the safety risk conditions of different moments on the current date are considered, and the reliable evaluation of the safety risk on the current date is realized.
4. According to the method, the comprehensive security risk assessment of the designated community on the current date is determined according to the date with the security risk, the security risk assessment of different dates and the security risk assessment of the current date in the latest preset time, so that the technical problem of low assessment accuracy caused by the original single security risk on the current date is avoided, the comprehensive assessment of the security risks of a plurality of dates in a certain time is realized, and the reliable early warning of the security risk is realized.
The further technical scheme is that the current-date people flow is determined according to the monitoring device of the appointed community, and particularly the current-date people flow is determined according to the analysis result of the monitoring image of the monitoring device.
The further technical scheme is that the security risk of the designated community is determined based on the evaluation security risk, and the method specifically comprises the following steps:
and when the evaluated security risk is greater than a preset security risk, determining that the designated community has the security risk.
The further technical scheme is that the preset time length is determined according to the people flow of the appointed community and the people flow peak value in unit time, wherein the larger the people flow of the appointed community is, the larger the people flow peak value in unit time is, the shorter the preset time length is.
The further technical scheme is that the method for determining the security risk assessment amount of the appointed community on the current date comprises the following steps:
when the initial evaluation of the security risk on the current date is larger than the evaluation of the security risk, determining the evaluation of the security risk of the designated community on the current date through the initial evaluation of the security risk on the current date;
and when the initial evaluation quantity of the security risk on the current date is not larger than the evaluation security risk, determining the security risk evaluation quantity of the designated community on the current date through the average value of the initial evaluation quantity of the security risk and the evaluation security risk.
The further technical scheme is that the method for determining the comprehensive security risk assessment amount of the appointed community on the current date comprises the following steps:
when the security risk assessment value of the current date is smaller than a preset value:
determining the comprehensive security risk assessment amount of the designated community on the current date through the security risk assessment amount on the current date;
when the security risk assessment value of the current date is not smaller than a preset value:
when the date with the safety risk does not exist in the latest preset time and the date with the safety risk assessment value not smaller than the preset value does not exist:
determining the comprehensive security risk assessment amount of the designated community on the current date through the average value of the security risk assessment amounts of different dates in the latest preset time and the security risk assessment amount of the current date;
when the latest preset time has a date with safety risk or a date with safety risk assessment value not smaller than a preset value:
determining the comprehensive security risk assessment amount of the time nearby the current date according to the number of the date with the security risk in the latest preset time, the security risk assessment amount, the number of the date with the security risk assessment amount not smaller than the preset value and the security risk assessment amount;
and determining the comprehensive security risk assessment amount of the current date through the security risk assessment amount of the current date and the comprehensive security risk assessment amount of the nearby time of the current date.
In a second aspect, the present invention provides an area alarm system, which adopts the area alarm method, and specifically includes:
an evaluation security risk determination module; a time period dividing module; a security risk assessment determination module; the early warning signal output module;
the evaluation security risk determination module is responsible for determining the evaluation security risk of the designated community based on the current date of the people flow and the people flow of different areas with the detention time longer than the preset time;
the time period dividing module is responsible for dividing the current date into a plurality of time periods based on preset time length, determining decomposition security risks of different time periods according to the flow rate and the residence time of people in different areas in each time period, and dividing the time period into a risk time period and other time periods according to the decomposition security risks;
the security risk assessment amount determining module is responsible for determining the initial security risk assessment amount of the current date through the decomposition security risk of the risk time period and other time periods, and determining the security risk assessment amount of the designated community on the current date by combining the assessment security risk;
the early warning signal output module is responsible for determining the comprehensive security risk assessment of the designated community on the current date according to the date of the security risk in the latest preset time, the security risk assessment of different dates and the security risk assessment of the current date, and determining whether an early warning signal needs to be sent or not according to the comprehensive security risk assessment.
Additional features and advantages will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings;
FIG. 1 is a flow chart of a zone alarm method;
FIG. 2 is a flow chart of a method of determining an assessed security risk for a specified community;
FIG. 3 is a flow chart of a method of resolving a determination of security risk for a time period;
FIG. 4 is a flow chart of a method of determining an initial assessment of security risk for a current date;
FIG. 5 is a block diagram of a zone alarm system.
Detailed Description
In order to make the technical solutions in the present specification better understood by those skilled in the art, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only some embodiments of the present specification, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present disclosure.
The applicant finds that for monitoring the safety risk of communities, particularly large communities, the prior art scheme usually realizes the determination of the safety risk of personnel flowing through the setting and analysis of a monitoring device, but ignores that for communities with potential safety hazards, the safety risk of a single day cannot accurately reflect the real safety state, and meanwhile, for different areas of the communities, the probability and the risk of the safety risk are different, so that if the judgment of the safety risk of the large communities cannot be realized by integrating the safety risks of different areas, the accurate evaluation of the safety risk cannot be realized.
In order to solve the technical problems, the applicant adopts the following technical scheme:
firstly, determining the estimated safety risk of the community on the current date through the traffic of people on the current date and the traffic of people with the retention time of different areas being longer than a certain time, specifically, determining the estimated safety risk of different areas through the traffic of people with the retention time of different areas being longer than a certain time, determining the traffic safety risk of the community through the traffic of people on the current date, determining the estimated safety risk of the community on the current date through the maximum value of the estimated safety risk of different areas and the maximum value of the traffic safety risk of the community, and when the estimated safety risk of the community on the current date is larger, the probability of the safety risk is higher at the moment, and entering the next step;
determining the decomposition security risks of different time periods according to the people flow and the detention time of different areas of different time periods of the current date, specifically determining the decomposition security risks according to the quantity of people flow meeting the requirements of the detention time of different areas of different time periods, and dividing the time periods into risk time periods and other time periods through the decomposition security risks;
and determining the safety risk assessment amount of the designated community on the current date through the decomposition safety risks and the assessment safety risks of the risk time periods and other time periods, specifically, determining the safety risk initial assessment amount of the community on the current date through the average value of the decomposition safety risks and the duty ratio of the risk time periods in the risk time periods, determining the safety risk assessment amount of the community on the current date through the safety risk initial assessment amount and the maximum value of the assessment safety risks, directly outputting an early warning signal when the safety risk is determined to exist through the safety risk assessment amount, and determining the safety risk of the community on the current date through the assessment condition of the safety risks of the further nearby date when the safety risk cannot be determined.
The following will describe in detail both from the point of view of the method class embodiment and the system class embodiment.
In order to solve the above-mentioned problems, according to one aspect of the present invention, as shown in fig. 1, there is provided a region alarm method according to one aspect of the present invention, which is characterized by comprising:
s1, determining the estimated safety risk of the designated community based on the people flow on the current date and the people flow with the detention time of different areas larger than the preset time, and entering the next step when the safety risk exists in the designated community based on the estimated safety risk;
in this embodiment, the method is mainly used for implementing preliminary screening of security risks of different dates, so as to avoid the technical problem of low evaluation efficiency caused by evaluating security risks of all dates of a designated date.
The current date of the people flow is determined according to the monitoring device of the designated community, and specifically, the current date of the people flow is determined according to the analysis result of the monitoring image of the monitoring device.
In one possible embodiment, as shown in fig. 2, the method for determining the estimated security risk of the specified community in the step S1 is as follows:
s11, acquiring the people flow of a designated community on the current date through a monitoring device of the designated community, and entering a step S13 if the people flow of the designated community on the current date is larger than a preset people flow or not, and entering a next step if the people flow of the designated community on the current date is not larger than the preset people flow;
s12, determining that the detention time of the appointed community in different areas on the current date is longer than the preset time according to the image analysis result of the monitoring device of the appointed community, taking the detention time as the detention time, judging whether the appointed community has an area with the detention time not meeting the requirement, if so, entering the next step, and if not, determining that the appointed community has no safety risk;
s13, determining the security risks of different areas according to the people flow rate of the different areas of the appointed community and the people flow rate with the detention time longer than the preset time, and determining the security risks of the areas of the appointed community according to the types of the different areas;
s14, determining the evaluation security risk of the designated community through the current date of the people flow of the designated community and the regional security risk of the designated community.
In one possible embodiment, the determination of the total people traffic safety risk of the current date is performed through the people traffic of the current date of the designated community, and the determination of the assessment safety risk of the designated community is performed with the maximum value in the regional safety risks of the designated community.
It should be noted that, based on the evaluation of the security risk, determining that the designated community has the security risk specifically includes:
and when the evaluated security risk is greater than a preset security risk, determining that the designated community has the security risk.
In another possible embodiment, the method for determining the estimated security risk of the specified community in the step S1 is as follows:
acquiring the people flow of a specified community on a current date and the people flow of different areas on the current date through a monitoring device of the specified community;
when the people flow rate of the appointed community on the current date and the people flow rates of different areas on the current date are all within the preset people flow rate range:
determining that the specified community does not have a security risk;
when any one of the people flow rate of the specified community on the current date and the people flow rate of different areas on the current date is not in the preset people flow rate range:
determining the flow of people with the residence time of the appointed community being longer than the preset time on the current date and the flow of people with the residence time of different areas being longer than the preset time according to the image analysis result of the monitoring device of the appointed community;
when the detention time of the appointed community on the current date is larger than the people flow of the preset time and the detention time of different areas is larger than the people flow of the preset time, the detention time is within the preset detention people flow range:
determining that the specified community does not have a security risk;
when the detention time of the appointed community on the current date is larger than the people flow of the preset time and the detention time of the different areas is larger than the people flow of the preset time, any one of the people flows is not in the range of the preset detention people flow:
and determining the security risks of different areas according to the people flow rate of different areas of the appointed community and the people flow rate with retention time longer than the preset time, determining the security risks of the areas of the appointed community according to the types of the different areas, and determining the evaluation security risks of the appointed community according to the people flow rate of the current date of the appointed community and the security risks of the areas of the appointed community.
In this embodiment, the determination of the security risk of the designated community is performed based on the traffic of people on the current date and the traffic of people with the retention time of different areas greater than the preset time, so that not only the traffic data on the current date is considered, but also the retention time of the traffic on the current date is comprehensively considered, the screening of the dates with the security risk is realized, and the technical problem of low evaluation efficiency caused by uniformly adopting the same security risk evaluation mode is avoided.
S2, dividing the current date into a plurality of time periods based on preset time length, determining decomposition security risks of different time periods according to the flow rate and the residence time of people in different areas in each time period, and dividing the time period into a risk time period and other time periods according to the decomposition security risks;
it should be further noted that, in the step S2, the preset duration is determined according to the traffic of the specified community and the peak value of the traffic in the unit time, where the larger the traffic of the specified community is, the larger the peak value of the traffic in the unit time is, and the shorter the preset duration is.
In one possible embodiment, as shown in fig. 3, the method for determining the decomposition security risk of the time period in the step S2 is as follows:
s21, acquiring the people flow of a designated community in the time period, determining whether the time period has safety risk or not based on the people flow of the designated community, if so, entering a step S23, and if not, entering a step S22;
s22, acquiring the people flow of different areas of the appointed community in the time period, determining whether areas with the people flow larger than a preset number exist in the time period based on the people flow of the different areas of the appointed community in the time period, if so, entering the next step, and if not, determining the decomposition security risk in the time period through the people flow of the appointed community in the time period;
s23, determining the overall security risk of the designated community in the time period through the people flow of the designated community in the time period, the residence time of the people flow and the people flow with the residence time being greater than the preset time, determining whether the security risk exists in the time period or not based on the overall security risk, if so, entering the next step, and if not, determining the decomposition security risk in the time period through the overall security risk;
s24, determining regional security risks of different regions in the time period according to the people flow rate of the different regions of the designated community in the time period, the detention time of the people flow rate and the people flow rate with the detention time greater than the preset time, dividing the regions into risk regions and risk-free regions according to the regional security risks, judging whether the risk regions exist, if so, entering the next step, and if not, determining the decomposition security risks in the time period according to the overall security risks;
s25, determining the overall security risk of the area of the designated community in the time period according to the number of the risk areas, the area security risk, the number of the risk-free areas and the area security risk, and determining the decomposition security risk of the designated community in the time period by combining the overall security risk.
Further, dividing the time period into a risk time period and other time periods by decomposing the security risk specifically includes:
and when the decomposition security risk of the time period does not meet the requirement, determining the time period as a risk time period, and when the decomposition security risk of the time period meets the requirement, determining the time period as other time periods.
In another possible embodiment, the method for determining the decomposition security risk of the time period in the step S2 is as follows:
acquiring the people flow of the appointed community in the time period, wherein the detention time of the people flow is longer than the preset time, and the people flow of different areas of the appointed community in the time period, wherein the detention time of the people flow is longer than the preset time; determining the overall security risk of the designated community in the time period through the traffic of the designated community in the time period, the detention time of the traffic of the people and the traffic of the people with the detention time greater than the preset time;
when the area with the detention time greater than the preset time and the people flow greater than the set quantity threshold exists in the time period or the total security risk of the designated community in the time period is greater than the security risk of the preset interval:
determining the regional security risks of different regions in the time period according to the people flow rate of different regions of the designated community in the time period, the detention time of the people flow rate and the people flow rate with the detention time greater than the preset time, dividing the regions into risk regions and risk-free regions according to the regional security risks, judging whether the risk regions exist, if so, entering the next step, and if not, determining the decomposition security risks in the time period according to the overall security risks;
determining the overall security risk of the area of the designated community in the time period according to the number of the risk areas, the area security risk, the number of the risk-free areas and the area security risk, and determining the decomposition security risk of the designated community in the time period by combining the overall security risk;
when the time period has an area with the detention time being larger than the preset time and the people flow being not larger than the set quantity threshold value and the total security risk of the designated community in the time period is not larger than the preset interval security risk:
determining the resolved security risk in the time period through the overall security risk.
In this embodiment, the time-division assessment of the security risk on the current date is realized by decomposing the security risk and dividing the risk time period and other time periods, the difference of the security risks in different time periods on the same date is fully considered, and meanwhile, a foundation is laid for further realizing the screening of the date with high security risk by determining the risk time period.
S3, determining the initial evaluation amount of the security risk of the current date through the decomposition security risk of the risk time period and other time periods, determining the evaluation amount of the security risk of the designated community on the current date by combining the evaluation security risk, determining whether the designated community has the security risk or not through the evaluation amount of the security risk, outputting an alarm signal if yes, and entering the next step if no;
in the embodiment, the community with larger security risk can be screened through the determination of the security risk assessment amount, so that the processing efficiency of risk alarms is improved, and the intrinsic safety management of the community is realized.
In one possible embodiment, as shown in fig. 4, the method for determining the initial evaluation amount of the security risk of the current date in the step S3 is as follows:
s31, judging whether a risk time period exists in the current date, if so, entering a next step, and if not, determining the initial evaluation quantity of the safety risk of the current date through the maximum value of the decomposed safety risks of other time periods of the current date;
s32, obtaining the maximum value of the decomposition security risk of the risk time period of the current date, judging whether the maximum value of the decomposition security risk of the risk time period is larger than a set risk threshold, if so, entering the next step, and if not, entering the step S34;
s33, judging whether the number of the risk time periods of the current date is larger than the number of the preset time periods, if so, determining the initial evaluation quantity of the safety risk of the current date through the maximum value of the decomposed safety risks of the risk time periods of the current date, and if not, entering the next step;
s34, determining an initial evaluation amount of the security risk of the risk period of the current date according to the number of the risk period of the current date, the maximum value of the decomposition security risk of the risk period and the average value;
s35, obtaining the number of other time periods of the current date and the maximum value of the resolved security risk, and determining the security risk assessment amount of the current date by combining the security risk initial assessment amount of the risk time period of the current date.
Before the determination of the initial evaluation amount of the security risk in the risk period of the current date in the above step S34, it is further determined whether the number of risk periods of the current date is smaller than the number of preset time periods and the maximum value of the resolved security risks in the risk periods is smaller than the set risk threshold, if yes, the determination of the initial evaluation amount of the security risk is performed by the average value of the resolved security risks in the risk periods, and if no, the determination of the initial evaluation amount of the security risk in the risk period of the current date is performed.
In another possible embodiment, the method for determining the initial evaluation amount of the security risk of the current date in the step S3 is as follows:
when the initial evaluation of the security risk on the current date is larger than the evaluation of the security risk, determining the evaluation of the security risk of the designated community on the current date through the initial evaluation of the security risk on the current date;
and when the initial evaluation quantity of the security risk on the current date is not larger than the evaluation security risk, determining the security risk evaluation quantity of the designated community on the current date through the average value of the initial evaluation quantity of the security risk and the evaluation security risk.
In this embodiment, the determination of the security risk assessment amount of the designated community on the current date is performed by integrating the security risk initial assessment amount on the current date and the security risk assessment amount, so that not only is the single security risk assessment on the current date, namely the overall risk analysis condition considered, but also the security risk conditions at different moments on the current date are considered, and the reliable assessment of the security risk on the current date is realized.
S4, determining the comprehensive security risk assessment value of the designated community on the current date according to the date with the security risk in the latest preset time, the security risk assessment values of different dates and the security risk assessment value of the current date, and determining whether an early warning signal needs to be sent or not according to the comprehensive security risk assessment value.
The method for determining the comprehensive security risk assessment amount of the designated community on the current date is as follows:
when the security risk assessment value of the current date is smaller than a preset value:
determining the comprehensive security risk assessment amount of the designated community on the current date through the security risk assessment amount on the current date;
when the security risk assessment value of the current date is not smaller than a preset value:
when the date with the safety risk does not exist in the latest preset time and the date with the safety risk assessment value not smaller than the preset value does not exist:
determining the comprehensive security risk assessment amount of the designated community on the current date through the average value of the security risk assessment amounts of different dates in the latest preset time and the security risk assessment amount of the current date;
when the latest preset time has a date with safety risk or a date with safety risk assessment value not smaller than a preset value:
determining the comprehensive security risk assessment amount of the time nearby the current date according to the number of the date with the security risk in the latest preset time, the security risk assessment amount, the number of the date with the security risk assessment amount not smaller than the preset value and the security risk assessment amount;
and determining the comprehensive security risk assessment amount of the current date through the security risk assessment amount of the current date and the comprehensive security risk assessment amount of the nearby time of the current date.
In this embodiment, the comprehensive security risk assessment of the designated community on the current date is determined according to the date of the security risk in the latest preset time, the security risk assessment of different dates and the security risk assessment of the current date, so that the technical problem of low assessment accuracy caused by the original single security risk on the current date is avoided, the comprehensive assessment of the security risks from a plurality of dates in a certain time is realized, and the reliable early warning of the security risk is realized.
On the other hand, as shown in fig. 5, the present invention provides an area alarm system, which adopts an area alarm method as described above, and specifically includes:
an evaluation security risk determination module; a time period dividing module; a security risk assessment determination module; the early warning signal output module;
the evaluation security risk determination module is responsible for determining the evaluation security risk of the designated community based on the current date of the people flow and the people flow of different areas with the detention time longer than the preset time;
the time period dividing module is responsible for dividing the current date into a plurality of time periods based on preset time length, determining decomposition security risks of different time periods according to the flow rate and the residence time of people in different areas in each time period, and dividing the time period into a risk time period and other time periods according to the decomposition security risks;
the security risk assessment amount determining module is responsible for determining the initial security risk assessment amount of the current date through the decomposition security risk of the risk time period and other time periods, and determining the security risk assessment amount of the designated community on the current date by combining the assessment security risk;
the early warning signal output module is responsible for determining the comprehensive security risk assessment of the designated community on the current date according to the date of the security risk in the latest preset time, the security risk assessment of different dates and the security risk assessment of the current date, and determining whether an early warning signal needs to be sent or not according to the comprehensive security risk assessment.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for apparatus, devices, non-volatile computer storage medium embodiments, the description is relatively simple, as it is substantially similar to method embodiments, with reference to the section of the method embodiments being relevant.
The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
The foregoing is merely one or more embodiments of the present description and is not intended to limit the present description. Various modifications and alterations to one or more embodiments of this description will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of one or more embodiments of the present description, is intended to be included within the scope of the claims of the present description.
Claims (8)
1. The regional alarm method is characterized by comprising the following steps of:
determining the estimated safety risk of a designated community based on the people flow on the current date and the people flow in different areas with the detention time longer than the preset time, and entering the next step when the estimated safety risk determines that the designated community has the safety risk;
dividing the current date into a plurality of time periods based on preset time length, determining decomposition security risks of different time periods according to the flow rate and the residence time of people in different areas in each time period, and dividing the time period into a risk time period and other time periods according to the decomposition security risks;
determining the initial evaluation amount of the security risk of the current date through the decomposition security risk of the risk time period and other time periods, determining the evaluation amount of the security risk of the designated community on the current date by combining the evaluation security risk, determining whether the designated community has the security risk or not through the evaluation amount of the security risk, outputting an alarm signal if yes, and entering the next step if no;
determining a comprehensive security risk assessment value of a designated community on the current date according to the date with the security risk in the latest preset time, security risk assessment values of different dates and security risk assessment values of the current date, and determining whether an early warning signal needs to be sent or not according to the comprehensive security risk assessment value;
the method for determining the evaluation security risk of the designated community comprises the following steps:
s11, acquiring the people flow of a designated community on the current date through a monitoring device of the designated community, and entering a step S13 if the people flow of the designated community on the current date is larger than a preset people flow or not, and entering a next step if the people flow of the designated community on the current date is not larger than the preset people flow;
s12, determining that the detention time of the appointed community in different areas on the current date is longer than the preset time according to the image analysis result of the monitoring device of the appointed community, taking the detention time as the detention time, judging whether the appointed community has an area with the detention time not meeting the requirement, if so, entering the next step, and if not, determining that the appointed community has no safety risk;
s13, determining the security risks of different areas according to the people flow rate of the different areas of the appointed community and the people flow rate with the detention time longer than the preset time, and determining the security risks of the areas of the appointed community according to the types of the different areas;
s14, determining the evaluation security risk of the appointed community according to the current date people flow of the appointed community and the regional security risk of the appointed community;
the method for determining the decomposition security risk of the time period comprises the following steps:
acquiring the people flow of the appointed community in the time period, wherein the detention time of the people flow is longer than the preset time, and the people flow of different areas of the appointed community in the time period, wherein the detention time of the people flow is longer than the preset time; determining the overall security risk of the designated community in the time period through the traffic of the designated community in the time period, the detention time of the traffic of the people and the traffic of the people with the detention time greater than the preset time;
when the area with the detention time greater than the preset time and the people flow greater than the set quantity threshold exists in the time period or the total security risk of the designated community in the time period is greater than the security risk of the preset interval:
determining the regional security risks of different regions in the time period according to the people flow rate of different regions of the designated community in the time period, the detention time of the people flow rate and the people flow rate with the detention time greater than the preset time, dividing the regions into risk regions and risk-free regions according to the regional security risks, judging whether the risk regions exist, if so, entering the next step, and if not, determining the decomposition security risks in the time period according to the overall security risks;
determining the overall security risk of the area of the designated community in the time period according to the number of the risk areas, the area security risk, the number of the risk-free areas and the area security risk, and determining the decomposition security risk of the designated community in the time period by combining the overall security risk;
when the time period has an area with the detention time being larger than the preset time and the people flow being not larger than the set quantity threshold value and the total security risk of the designated community in the time period is not larger than the preset interval security risk:
determining the resolved security risk in the time period through the overall security risk.
2. The regional alarm method of claim 1, wherein the current date of the traffic is determined according to a monitoring device of the designated community, and specifically the current date of the traffic is determined according to an analysis result of a monitoring image of the monitoring device.
3. The regional alert method of claim 1, wherein determining that the specified community has a security risk based on the assessed security risk, comprises:
and when the evaluated security risk is greater than a preset security risk, determining that the designated community has the security risk.
4. The regional alarm method of claim 1, wherein the preset duration is determined according to the traffic of the designated community and a peak value of traffic per unit time, and the larger the traffic of the designated community, the larger the peak value of traffic per unit time, the shorter the preset duration.
5. The regional alert method of claim 1, wherein the time period is divided into a risk time period and other time periods by the decomposing security risk, specifically comprising:
and when the decomposition security risk of the time period does not meet the requirement, determining the time period as a risk time period, and when the decomposition security risk of the time period meets the requirement, determining the time period as other time periods.
6. The area alarm method as set forth in claim 1, wherein the method for determining the initial evaluation amount of the security risk on the current date is as follows:
s31, judging whether a risk time period exists in the current date, if so, entering a next step, and if not, determining the initial evaluation quantity of the safety risk of the current date through the maximum value of the decomposed safety risks of other time periods of the current date;
s32, obtaining the maximum value of the decomposition security risk of the risk time period of the current date, judging whether the maximum value of the decomposition security risk of the risk time period is larger than a set risk threshold, if so, entering the next step, and if not, entering the step S34;
s33, judging whether the number of the risk time periods of the current date is larger than the number of the preset time periods, if so, determining the initial evaluation quantity of the safety risk of the current date through the maximum value of the decomposed safety risks of the risk time periods of the current date, and if not, entering the next step;
s34, determining an initial evaluation amount of the security risk of the risk period of the current date according to the number of the risk period of the current date, the maximum value of the decomposition security risk of the risk period and the average value;
s35, obtaining the number of other time periods of the current date and the maximum value of the resolved security risk, and determining the security risk assessment amount of the current date by combining the security risk initial assessment amount of the risk time period of the current date.
7. The regional alarm method of claim 6, wherein before determining the initial evaluation amount of the risk period of the current date, it is further determined whether the number of risk periods of the current date is smaller than a preset period number and the maximum value of the resolved security risks of the risk period is smaller than a set risk threshold, if yes, the initial evaluation amount of the risk of the current date is determined by the average value of the resolved security risks of the risk period, and if not, the initial evaluation amount of the risk period of the current date is determined.
8. A zone alarm system employing a zone alarm method according to any one of claims 1-7, comprising:
an evaluation security risk determination module; a time period dividing module; a security risk assessment determination module; the early warning signal output module;
the evaluation security risk determination module is responsible for determining the evaluation security risk of the designated community based on the current date of the people flow and the people flow of different areas with the detention time longer than the preset time;
the time period dividing module is responsible for dividing the current date into a plurality of time periods based on preset time length, determining decomposition security risks of different time periods according to the flow rate and the residence time of people in different areas in each time period, and dividing the time period into a risk time period and other time periods according to the decomposition security risks;
the security risk assessment amount determining module is responsible for determining the initial security risk assessment amount of the current date through the decomposition security risk of the risk time period and other time periods, and determining the security risk assessment amount of the designated community on the current date by combining the assessment security risk;
the early warning signal output module is responsible for determining the comprehensive security risk assessment of the designated community on the current date according to the date of the security risk in the latest preset time, the security risk assessment of different dates and the security risk assessment of the current date, and determining whether an early warning signal needs to be sent or not according to the comprehensive security risk assessment.
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