Campus safety management evaluation method and system

Abstract

The invention relates to a campus safety management evaluation method and system, and relates to the field of data processing technology, and the method comprises the steps: obtaining a demand monitoring region and an overall monitoring region; when the required monitoring area is completely located in the overall monitoring area, determining a historical interval and obtaining an effective monitoring image; determining personnel popularity parameters according to the effective monitoring images; determining a reference demand quantity according to the personnel popularity parameter; binding appliances are defined according to the position points, and counting is carried out according to the binding appliances to determine the effective monitoring number; defining the position points when the effective monitoring number is not smaller than the corresponding reference demand number as effective points, and determining the number of effective point positions according to the effective points; determining the overall point location number according to the location points in the area needing to be monitored, and determining an effective monitoring proportion according to the effective point location number and the overall point location number; and determining and outputting a management evaluation result according to the effective monitoring proportion. The method and the device have the effect of improving the evaluation effect of the campus safety management evaluation operation.

Description

Technical Field

[0001] The present application relates to the field of data processing technologies, and in particular, to a campus security management evaluation method and system. Background Art

[0002] With the increasingly serious problems of campus security, campus security management has become a relatively active topic at present. Among them, for the personal safety management of students, it is generally achieved by installing monitors on campus. Through campus monitors, all-round and full-HD video three-dimensional management and monitoring of school places can be carried out, so that when external personnel enter the campus, student bullying, student fighting, etc. occur, the management personnel can timely learn the specific situation to take reasonable countermeasures.

[0003] Currently, in order to ensure the safety of teachers and students and improve the level of campus security, patent evaluation agencies will conduct comprehensive inspections and evaluations on campus security management systems. Taking campus monitors as an example, when conducting evaluations, the monitored area range will be determined, and based on the size of the monitored area range, it can be known whether the areas that need to be monitored on campus are covered, so as to effectively evaluate the campus security management situation.

[0004] In the above related technologies, when evaluating the role of campus monitors in campus security management, the popularity of personnel in each area of the campus is different, and at this time, the monitoring intensity required for each area is also different. If only considering the monitoring coverage range, it may be that areas with a higher monitoring intensity requirement can also obtain better evaluation results with a lower monitoring intensity, resulting in a poor evaluation effect and still having room for improvement. Summary of the Invention

[0005] In order to improve the evaluation effect of campus security management evaluation operations, the present application provides a campus security management evaluation method and system.

[0006] In a first aspect, the present application provides a campus security management evaluation method, adopting the following technical solution:

[0007] A campus security management evaluation method includes:

[0008] Obtain the overall distribution area of the campus and the effective monitoring areas of each monitoring device;

[0009] Determine the required monitoring areas in the overall distribution area of the campus according to the preset monitoring division rules, and determine the overall monitoring area based on all the effective monitoring areas;

[0010] Judge whether the required monitoring areas are completely within the overall monitoring area;

[0011] If the required monitoring areas are not completely within the overall monitoring area, output a management poor signal to a preset display end;

[0012] If the demand monitoring area is completely within the overall monitoring area, a historical interval with the current time point as the backend point and a width of a preset historical duration is constructed on the preset time axis;

[0013] Obtain the effective monitoring images acquired by the monitoring devices within the historical interval, and determine the personnel heat parameters of each position point in the demand monitoring area based on each effective monitoring image;

[0014] Determine the benchmark demand quantity corresponding to the personnel heat parameter according to the preset heat matching relationship;

[0015] Define the monitoring devices corresponding to the effective monitoring areas containing the position points as bound devices, and count according to the bound devices corresponding to each position point to determine the effective monitoring quantity;

[0016] Define the position points when the effective monitoring quantity is not less than the corresponding benchmark demand quantity as effective points, and count according to the effective points to determine the effective point quantity;

[0017] Count according to the position points in the demand monitoring area to determine the overall point quantity, and calculate based on the effective point quantity and the overall point quantity to determine the effective monitoring ratio;

[0018] Determine the management evaluation result corresponding to the effective monitoring ratio according to the preset evaluation matching relationship, and output the current management evaluation result to the display end.

[0019] Optionally, after the poor management signal is output, the campus security management evaluation method further includes:

[0020] Define the demand monitoring area not within the overall monitoring area as an invalid supervision area;

[0021] Randomly generate compensation points in the overall campus distribution area, and determine the local compensation area according to the preset compensation range at the compensation points;

[0022] Determine the compensation plan based on all the compensation points, and determine the overall compensation area according to the local compensation areas of each compensation point in the compensation plan;

[0023] Define the compensation plan corresponding to when the overall compensation area includes the invalid supervision area as an effective plan, and count according to the compensation points in the effective plan to determine the compensation quantity;

[0024] Determine the compensation quantity with the smallest value according to the preset sorting rule, and define the effective plan corresponding to the compensation quantity with the smallest value as a reasonable plan, and synchronously output the reasonable plan to the display end.

[0025] Optionally, after determining the compensation quantity, the campus security management evaluation method further includes:

[0026] Determine whether there are at least two effective solutions with the same and minimum compensation quantity;

[0027] If there are not at least two effective solutions with the same and minimum compensation quantity, define the effective solution corresponding to the minimum compensation quantity as the reasonable solution;

[0028] If there are at least two effective solutions with the same and minimum compensation quantity, define the effective solution corresponding to the minimum compensation quantity as the alternative solution;

[0029] In each alternative solution, define the overall compensation area not in the demand monitoring area as the redundant monitoring area, and determine the overall redundant area based on all the redundant monitoring areas;

[0030] Determine the overall redundant area with the minimum value according to the sorting rule, and define the alternative solution corresponding to the overall redundant area as the reasonable solution.

[0031] Optionally, the steps of determining the personnel heat parameter at each position point in the demand monitoring area according to each effective monitoring image include:

[0032] Take the position point as the center and a preset unit distance as the radius to delimit an equivalent area, and delimit an equivalent local image in the effective monitoring image according to the equivalent area;

[0033] Randomly delimit a unit interval with a width of a preset unit time length in the historical interval, and perform feature analysis according to each equivalent local image in the unit interval to determine the number of personnel in the interval;

[0034] Determine the number of personnel in the interval with the maximum value according to the sorting rule, define the number of personnel in the interval as the upper limit number of personnel, and calculate according to the upper limit number of personnel and the unit time length to determine the personnel heat parameter.

[0035] Optionally, after determining the upper limit number of personnel, the campus security management evaluation method further includes:

[0036] Calculate according to the upper limit number of personnel and a preset approximate number to construct an approximate interval, and define the unit interval corresponding to the number of personnel in the interval within the approximate interval as the equivalent interval;

[0037] Determine the equivalent specific date according to the equivalent interval, and count according to each equivalent specific date to determine the number of equivalent dates;

[0038] Judge whether the number of equivalent dates is greater than the preset number of benchmark dates;

[0039] If the number of equivalent dates is greater than the number of benchmark dates, the currently determined upper limit of the number of personnel is maintained;

[0040] If the number of equivalent dates is not greater than the number of benchmark dates, the currently determined upper limit of the number of personnel is excluded, and the upper limit of the number of personnel is re-determined from the remaining number of personnel in the interval.

[0041] Optionally, after the management evaluation result is determined, the campus safety management evaluation method further includes:

[0042] Define the position point where the effective monitoring quantity is less than the corresponding benchmark demand quantity as an invalid point;

[0043] Calculate the difference based on the effective monitoring quantity of the invalid point and the corresponding benchmark demand quantity to determine the monitoring difference quantity;

[0044] Determine the monitoring deviation coefficient corresponding to the monitoring difference quantity according to the preset deviation matching relationship, and calculate the mean value of all the monitoring deviation coefficients to determine the mean deviation coefficient;

[0045] Determine the evaluation adjustment parameter corresponding to the mean deviation coefficient and the effective monitoring ratio according to the preset adjustment matching relationship, and update the current management evaluation result according to the evaluation adjustment parameter.

[0046] Optionally, after the management evaluation result is updated, the campus safety management evaluation method further includes:

[0047] Judge whether the management evaluation result is within the preset correction result range;

[0048] If the management evaluation result is not within the correction result range, output the current management evaluation result to the display terminal;

[0049] If the management evaluation result is within the correction result range, randomly generate virtual points in the overall campus distribution area, and determine the local virtual area according to the compensation range at the virtual points;

[0050] Count the invalid points within the local virtual area to determine the internal invalid quantity, and calculate according to the internal invalid quantity and the preset overall virtual quantity to determine the filling invalid ratio;

[0051] Define the virtual points corresponding to the filling invalid ratio greater than the preset benchmark demand ratio as permission points, and combine all the permission points to construct a permission set;

[0052] Randomly select any number of permission points from the permission set to form a virtual processing plan, and determine the permission separation distance according to any two permission points in the virtual processing plan;

[0053] Define a virtual processing solution where there is no licensed separation distance less than the preset theoretical separation distance as a licensed processing solution, and count according to the licensed points in the licensed processing solution to determine the number of licenses;

[0054] Determine the license quantity with the largest value according to the sorting rule, and define the license processing solution corresponding to this license quantity as the optional processing solution;

[0055] In the optional processing solution, calculate the average invalid ratio according to the filling invalid ratio corresponding to each licensed point to determine the average invalid ratio, and define the optional processing solution corresponding to the largest average invalid ratio as the modified processing solution, and synchronously output the current management evaluation result and the modified processing solution to the display end.

[0056] In a second aspect, the present application provides a campus safety management evaluation system, adopting the following technical solution:

[0057] A campus safety management evaluation system, including:

[0058] An acquisition module, configured to acquire the overall campus distribution area and the effective monitoring areas of each monitoring device;

[0059] A processing module, connected to the acquisition module and the judgment module, for storing and processing information;

[0060] A judgment module, connected to the acquisition module and the processing module, for judging information;

[0061] The processing module determines the required monitoring area according to the preset monitoring division rule in the overall campus distribution area, and determines the overall monitoring area according to all the effective monitoring areas;

[0062] The judgment module judges whether the required monitoring area is completely within the overall monitoring area;

[0063] If the judgment module determines that the required monitoring area is not completely within the overall monitoring area, the processing module outputs a management poor signal to the preset display end;

[0064] If the judgment module determines that the required monitoring area is completely within the overall monitoring area, the processing module constructs a historical interval on the preset time axis with the current time point as the rear end point and a width of the preset historical duration;

[0065] The acquisition module acquires the effective monitoring images obtained by the monitoring devices within the historical interval, and enables the processing module to determine the personnel heat parameters of each position point in the required monitoring area according to each effective monitoring image;

[0066] The processing module determines the benchmark demand quantity corresponding to the personnel heat parameter according to the preset heat matching relationship;

[0067] The processing module defines the monitoring devices corresponding to the effective monitoring areas containing location points as bound devices, and counts according to the bound devices corresponding to each location point to determine the effective monitoring quantity;

[0068] The processing module defines the location points when the effective monitoring quantity is not less than the corresponding benchmark requirement quantity as effective points, and counts according to the effective points to determine the effective point quantity;

[0069] The processing module counts according to the location points in the required monitoring area to determine the overall point quantity, and calculates according to the effective point quantity and the overall point quantity to determine the effective monitoring ratio;

[0070] The processing module determines the management evaluation result corresponding to the effective monitoring ratio according to the preset evaluation matching relationship, and outputs the current management evaluation result to the display end.

[0071] In summary, the present application includes at least one of the following beneficial technical effects:

[0072] 1. When evaluating campus safety management, determine the personnel heat situation in each area of the campus according to historical data, and determine the number of required monitoring devices according to the personnel heat situation in each area, so as to fully consider the relationship between personnel heat and the number of monitoring devices, and improve the evaluation effect of campus safety management evaluation operations;

[0073] 2. When it is detected that the area to be monitored in the campus is not fully monitored, a plan to assist school management personnel in rectification can be automatically generated to facilitate subsequent rectification operations;

[0074] 3. When determining the personnel heat situation, exclude the situations where activities may gather in a short period of time to improve the accuracy of personnel heat determination. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] Figure 1 is a flowchart of the campus safety management evaluation method.

[0076] Figure 2 is a module flowchart of the campus safety management evaluation method. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0077] In order to make the purpose, technical solutions and advantages of the present application clearer, the following is a further detailed description of the present application in combination with Figure 1 - Figure 2 and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0078] The following further describes the embodiments of the present application in conjunction with the accompanying drawings of the specification.

[0079] An embodiment of the present application discloses a method for evaluating campus safety management. Referring to Figure 1 , the method flow of the campus safety management evaluation method includes the following steps:

[0080] Step S100: Obtain the overall distribution area of the campus and the effective monitoring areas of each monitoring device.

[0081] The overall distribution area of the campus is the campus area input by the management personnel according to the campus distribution map, and the effective monitoring area is the area that can be monitored by the monitoring devices currently installed on the campus.

[0082] Step S101: Determine the required monitoring areas according to the preset monitoring division rules in the overall distribution area of the campus, and determine the overall monitoring area according to all the effective monitoring areas.

[0083] The required monitoring areas are the areas in the campus that need to be monitored for campus safety. The monitoring division rules are the rules set by the staff for dividing the areas that need to be monitored in the overall distribution area of the campus. For example, they are divided according to the area names. In the overall distribution area of the campus, each area has a corresponding area name, such as classrooms, playgrounds, corridors, rooms, etc. Among them, the monitoring division rules are which areas corresponding to the area names need to be monitored and which areas corresponding to the area names do not need to be monitored. Specifically, it is set by the staff according to the actual situation; the overall monitoring area is all the areas that can be monitored by the monitoring devices in the campus currently.

[0084] Step S102: Determine whether the required monitoring areas are completely within the overall monitoring area.

[0085] The purpose of the determination is to know whether the areas that need to be monitored in the campus are completely monitored.

[0086] Step S1021: If the required monitoring areas are not completely within the overall monitoring area, output a poor management signal to a preset display terminal.

[0087] When the required monitoring areas are not completely within the overall monitoring area, it means that there are still areas that need to be monitored and managed that are not monitored, that is, the current campus safety management level is poor. Output a poor management signal to identify this situation and output it to the display terminal so that the evaluation personnel can know the evaluation result; the corresponding display terminal is the output port for the user to know the evaluation result, such as a display screen.

[0088] Step S1022: If the required monitoring areas are completely within the overall monitoring area, construct a historical interval on the preset time axis with the current time point as the rear endpoint and a width of the preset historical duration.

[0089] When the demand monitoring area is completely within the overall monitoring area, it indicates that all areas in the campus that need to be monitored are monitored by surveillance cameras. At this time, the safety of teachers and students can be guaranteed to a certain extent, and then the monitoring level analysis can be continued; the time axis is an axis formed by combining each time point. This axis points from the time points that have passed to the time points that have not yet arrived. Among them, the time points that have passed are on the left side of this time axis, and the left side is defined as the front end of the time axis; the historical duration is the duration set by the staff for obtaining data on the personnel situation in each area of the campus. By constructing a historical interval, it is convenient to obtain and analyze the data within the historical duration.

[0090] Step S103: Obtain the effective monitoring images acquired by the monitoring devices within the historical interval, and determine the personnel heat parameters of each position point in the demand monitoring area based on each effective monitoring image.

[0091] The effective monitoring images are the monitoring images acquired by each monitoring device at each time point within the historical interval; the personnel heat parameter is a heat parameter that reflects the heat of each teacher and student at the corresponding position point under normal activities. The larger this heat parameter is, the more people pass through this position point, that is, the higher the degree of monitoring required. Among them, the determination method of the personnel heat parameter can be implemented through steps S400 - S402.

[0092] Step S104: Determine the benchmark demand quantity corresponding to the personnel heat parameter according to the preset heat matching relationship.

[0093] The benchmark demand quantity is the minimum number of monitoring devices required to perform better monitoring and management of the position points of the personnel heat parameter. When the personnel heat parameter is larger, it indicates that there are more people at this position point, and the corresponding monitoring difficulty is greater. At this time, the required benchmark demand quantity is larger. The heat matching relationship between the two is determined by the staff in advance based on multiple tests and will not be elaborated here.

[0094] Step S105: Define the monitoring devices corresponding to the effective monitoring areas containing the position points as the bound devices, and count according to the bound devices corresponding to each position point to determine the effective monitoring quantity.

[0095] Defining the bound devices to distinguish the monitoring devices that can monitor the position points is convenient for subsequent analysis; the effective monitoring quantity is the total number of monitoring devices that can monitor a single position point.

[0096] Step S106: Define the position points when the effective monitoring quantity is not less than the corresponding benchmark demand quantity as the effective points, and count according to the effective points to determine the effective point quantity.

[0097] When the number of effective detections is not less than the corresponding benchmark requirement quantity, it indicates that this location point can be well monitored and managed. Therefore, it is defined as an effective point for identification; the number of effective positions is the total number of the identified effective points.

[0098] Step S107: Count the location points in the demand monitoring area to determine the total number of points, and calculate based on the number of effective positions and the total number of points to determine the effective monitoring ratio.

[0099] The total number of points is the total number of location points in the determined demand monitoring area. The effective monitoring ratio is the ratio of the location points that are effective points in the demand monitoring area to all location points, which is determined by dividing the number of effective positions by the total number of points.

[0100] Step S108: Determine the management evaluation result corresponding to the effective monitoring ratio according to the preset evaluation matching relationship, and output the current management evaluation result to the display terminal.

[0101] The management evaluation result is the evaluation result used to output the specific situation of campus safety management. When the effective monitoring ratio is higher, it indicates that the number of location points effectively monitored in the demand monitoring area is larger, that is, the safety management effect is better, and the corresponding management evaluation result is better at this time. The evaluation matching relationship between the two is pre-entered and stored by the evaluator according to the specific situation.

[0102] After the output of the poor management signal, the campus safety management evaluation method further includes:

[0103] Step S200: Define the demand monitoring area that is not within the overall monitoring area as an ineffective supervision area.

[0104] Defining the ineffective supervision area is to distinguish different demand monitoring areas, which is convenient for subsequent analysis.

[0105] Step S201: Randomly generate compensation points in the overall campus distribution area, and determine the local compensation area according to the preset compensation range at the compensation points.

[0106] The compensation points are the location points randomly generated in the overall campus distribution area for simulating the installation of monitoring devices. The compensation range is the range that the installed area can monitor, and the local compensation area is the area that the monitoring device installed at the compensation point can monitor.

[0107] Step S202: Determine the compensation plan based on all the compensation points, and determine the overall compensation area according to the local compensation areas of each compensation point in the compensation plan.

[0108] The compensation scheme is a simulation scheme composed of simultaneously generated compensation points. The overall compensation area is the monitoring area that can be covered when installing monitoring devices according to the compensation points in the compensation scheme.

[0109] Step S203: Define the compensation scheme corresponding to the situation where the overall compensation area includes the ineffective supervision area as the effective scheme, and count according to the compensation points in the effective scheme to determine the compensation quantity.

[0110] When the overall compensation area includes the ineffective supervision area, it indicates that the current compensation scheme can enable the areas that need to be monitored on campus to be monitored. At this time, define it as the effective scheme for identification to facilitate subsequent analysis; the compensation quantity is the total number of compensation points in the determined effective scheme.

[0111] Step S204: Determine the compensation quantity with the smallest value according to the preset sorting rule, and define the effective scheme corresponding to the compensation quantity with the smallest value as the reasonable scheme, and synchronously output the reasonable scheme to the display end.

[0112] The sorting rule is a method set by the staff to sort the numerical values, such as the bubble sort method. Through the sorting rule, the compensation quantity with the smallest value can be determined, that is, the number of monitoring devices that need to be added and used under the corresponding effective scheme is the least at this time. At this time, determine it as the reasonable scheme and output it to the display end so that the management personnel can know this situation, thereby providing a reference for the monitoring adjustment of the campus management personnel.

[0113] After the compensation quantity is determined, the campus safety management evaluation method further includes:

[0114] Step S300: Determine whether there are at least two effective schemes with the same and smallest compensation quantity.

[0115] The purpose of the determination is to know whether there are multiple effective schemes that meet the requirements, so as to determine the only reasonable scheme.

[0116] Step S3001: If there are not at least two effective schemes with the same and smallest compensation quantity, define the effective scheme corresponding to the smallest compensation quantity as the reasonable scheme.

[0117] When there are not at least two effective schemes with the same and smallest compensation quantity, it means that there is only a unique effective scheme that meets the requirements. At this time, determine it as the reasonable scheme.

[0118] Step S3002: If there are at least two effective schemes with the same and smallest compensation quantity, define the effective scheme corresponding to the smallest compensation quantity as the alternative scheme.

[0119] When there are at least two valid solutions with the same and smallest compensation amount, it means that there are multiple valid solutions that meet the requirements. In this case, they are defined as alternative solutions and marked for subsequent analysis.

[0120] Step S301: in each alternative solution, the entire compensation area that is not within the required monitoring area is defined as a redundant monitoring area, and the entire redundant area is determined based on all the redundant monitoring areas.

[0121] Redundant monitoring areas are defined to identify areas that do not need to be monitored, and the overall redundant area is the total area of ​​all redundant monitoring areas.

[0122] Step S302: determining the overall redundant area with the smallest value according to the sorting rule, and defining the alternative solution corresponding to the overall redundant area as a reasonable solution.

[0123] The sorting rules can be used to determine the overall redundant area with the smallest value, which means that the area that does not need to be monitored under the corresponding alternative plan is the smallest, and the monitoring range of the monitoring equipment can be adjusted to the area that needs to be monitored as much as possible. The overall effect is better, so it can be determined as a reasonable plan.

[0124] The steps of determining the personnel heat parameters of each location point in the required monitoring area according to each effective monitoring image include:

[0125] Step S400: defining an equivalent area with the location point as the center point and a preset unit distance as the radius, and defining an equivalent local image in the effective monitoring image according to the equivalent area.

[0126] The unit distance is the maximum distance between a point closer to the location point and the location point set by the staff. The equivalent area is delineated to identify the area near the location point; the equivalent local image is the actual image of the equivalent area in the effective monitoring image.

[0127] Step S401: randomly defining a unit interval with a width of a preset unit time length in the historical interval, and performing feature analysis on each equivalent local image in the unit interval to determine the number of people in the interval.

[0128] The unit duration is a fixed duration set by the staff, such as 30 minutes, 1 hour, etc. The maximum unit duration is not more than 2 hours and the minimum is not less than 20 minutes. By constructing a unit interval, it is convenient to obtain and analyze the data within the unit duration; the number of people in the interval is the total number of people passing through the equivalent area in the unit interval. Specific feature analysis methods may include R-CNN series algorithms, YOLO deep learning algorithms, etc.

[0129] Step S402: Determine the number of personnel in the interval with the largest value according to the sorting rule, define the number of personnel in this interval as the upper limit of the number of personnel, and calculate according to the upper limit of the number of personnel and the unit time length to determine the personnel heat parameter.

[0130] Through the sorting rule, the number of personnel in the interval with the largest value can be determined, that is, the number of personnel in this interval is the highest number of personnel that will appear at this position point under normal circumstances. At this time, the upper limit of the number of personnel is defined for identification, and the personnel heat parameter is determined by dividing the upper limit of the number of personnel by the unit time length.

[0131] After the upper limit of the number of personnel is determined, the campus safety management evaluation method further includes:

[0132] Step S500: Calculate according to the upper limit of the number of personnel and the preset similar number to construct a similar interval, and define the unit interval corresponding to the number of personnel in the interval within the similar interval as the equivalent interval.

[0133] When the upper limit of the number of personnel is determined, it is possible that the upper limit of the number of personnel is the parameter obtained during activities held on campus and cannot objectively reflect the daily situation on campus. Therefore, further analysis is required; the similar number is the maximum difference allowed between the number of personnel in the interval set by the staff that is relatively close to the upper limit of the number of personnel and the upper limit of the number of personnel. The similar interval is the interval where the remaining data relatively close to the upper limit of the number of personnel needs to be located. The lower endpoint of the similar interval is determined by subtracting the similar number from the upper limit of the number of personnel, and the upper endpoint of the similar interval is the upper limit of the number of personnel; the equivalent interval is defined to identify the unit intervals with similar data for subsequent analysis.

[0134] Step S501: Determine the equivalent specific date according to the equivalent interval, and count according to each equivalent specific date to determine the number of equivalent dates.

[0135] The equivalent specific date is the actual date where the equivalent interval is located, and the number of equivalent dates is the total number of different equivalent specific dates determined.

[0136] Step S502: Judge whether the number of equivalent dates is greater than the preset number of benchmark dates.

[0137] The number of benchmark dates is the minimum number of equivalent dates set by the staff when it is determined that the current upper limit of the number of personnel does not occur accidentally. The purpose of the judgment is to know whether the determined upper limit of the number of personnel appears accidentally.

[0138] Step S5021: If the number of equivalent dates is greater than the number of benchmark dates, maintain the currently determined upper limit of the number of personnel.

[0139] When the number of equivalent dates is greater than the number of benchmark dates, it indicates that the currently determined upper limit of the number of people can objectively reflect the actual popularity of this location point on campus. At this time, the determined data can be maintained normally.

[0140] Step S5022: If the number of equivalent dates is not greater than the number of benchmark dates, then exclude the currently determined upper limit of the number of people, and re-determine the upper limit of the number of people from the remaining number of people in the interval.

[0141] When the number of equivalent dates is not greater than the number of benchmark dates, it indicates that the currently determined upper limit of the number of people cannot reflect the actual popularity of this location point on campus. Therefore, it can be excluded to re-determine the upper limit of the number of people, so as to improve the accuracy of popularity determination.

[0142] After the management evaluation result is determined, the campus security management evaluation method further includes:

[0143] Step S600: Define the location points where the effective monitoring quantity is less than the corresponding benchmark demand quantity as invalid points.

[0144] Defining invalid points can distinguish different location points, which is convenient for subsequent analysis.

[0145] Step S601: Calculate the difference based on the effective monitoring quantity of the invalid points and the corresponding benchmark demand quantity to determine the monitoring difference quantity.

[0146] The monitoring difference quantity is the number of monitoring devices lacking at the invalid points, which is determined by subtracting the effective monitoring quantity from the benchmark demand quantity.

[0147] Step S602: Determine the monitoring deviation coefficient corresponding to the monitoring difference quantity according to the preset deviation matching relationship, and calculate the mean deviation coefficient based on all the monitoring deviation coefficients.

[0148] The monitoring deviation coefficient is a parameter reflecting the impact caused by the lacking monitoring quantity at the location point. The larger this value is, the greater the impact caused, that is, the worse the evaluation result. The larger the monitoring difference quantity, the larger the corresponding monitoring deviation coefficient. The deviation matching relationship between the two is determined by the staff through multiple tests in advance and will not be elaborated here; the mean deviation coefficient is the average value of the determined monitoring deviation coefficients.

[0149] Step S603: Determine the evaluation adjustment parameter corresponding to the mean deviation coefficient and the effective monitoring ratio according to the preset adjustment matching relationship, and update the current management evaluation result according to the evaluation adjustment parameter.

[0150] The evaluation adjustment parameter is the parameter value for adjusting the management evaluation result based on the invalid points. Under different mean deviation coefficients and effective monitoring ratios, the corresponding evaluation adjustment parameters are also different. The adjustment matching relationship among the three is determined by the staff through multiple experiments in advance. It only needs to ensure that the larger the mean deviation coefficient, the larger the corresponding evaluation adjustment parameter, and the larger the effective monitoring ratio, the smaller the corresponding evaluation adjustment parameter. By subtracting the evaluation adjustment parameter from the management evaluation result, a more accurate determination of the management evaluation result can be achieved. For the convenience of calculating the management evaluation result, a percentage system can be used to output the management evaluation result, where 100 points is the highest score and 0 points is the lowest score.

[0151] After the management evaluation result is updated, the campus security management evaluation method further includes:

[0152] Step S700: Determine whether the management evaluation result is within the preset correction result range.

[0153] The correction result range is the range that the management evaluation result needs to be within when the staff determines that the campus security monitoring management effect is poor and subsequent adjustments are required. The purpose of the judgment is to know whether the current monitoring effect is good.

[0154] Step S7001: If the management evaluation result is not within the correction result range, output the current management evaluation result to the display terminal.

[0155] When the management evaluation result is not within the correction result range, it means that the evaluation result is good. At this time, the corresponding evaluation result can be output normally.

[0156] Step S7002: If the management evaluation result is within the correction result range, randomly generate virtual points in the overall campus distribution area, and determine local virtual areas according to the compensation range at the virtual points.

[0157] When the management evaluation result is within the correction result range, it means that there is still room for improvement in the current monitoring management situation. Therefore, further analysis can be carried out. The virtual points are the position points simulated for installing monitoring devices, and the local virtual areas are the range areas that can be monitored by the monitoring devices installed at the virtual points.

[0158] Step S701: Count the invalid points within the local virtual area to determine the internal invalid quantity, and calculate according to the internal invalid quantity and the preset overall virtual quantity to determine the filling invalid ratio.

[0159] The internal invalid quantity is the total quantity of invalid points within the local virtual area, that is, the quantity of position points capable of realizing the repair of the monitoring situation; the overall virtual quantity is the quantity of position points within the area that can be covered by a monitoring device. The filling invalid ratio is the ratio of the position points that can be repaired to all position points, which is determined by dividing the internal invalid quantity by the overall virtual quantity.

[0160] Step S702: Define the virtual points corresponding to the filling invalid ratio greater than the preset benchmark requirement ratio as permitted points, and combine all the permitted points to construct a permitted set.

[0161] The benchmark requirement ratio is the minimum filling invalid ratio required for the monitoring device added by the staff to achieve a good monitoring effect. By defining permitted points to distinguish different virtual points, it is convenient for subsequent analysis; the permitted set is the combination formed by all the defined permitted points.

[0162] Step S703: Randomly select any quantity of permitted points from the permitted set to form a virtual processing plan, and determine the permitted separation distance based on any two permitted points in the virtual processing plan.

[0163] The virtual processing plan is a simulated plan for adding a monitoring device; the permitted separation distance is the linear distance value between two permitted points.

[0164] Step S704: Define the virtual processing plan without a permitted separation distance less than the preset theoretical separation distance as a permitted processing plan, and count according to the permitted points in the permitted processing plan to determine the permitted quantity.

[0165] The theoretical separation distance is the maximum permitted separation distance between two monitoring devices when the working ranges of the two monitoring devices are relatively repetitive and cannot achieve a good monitoring effect. When there is no situation where the permitted separation distance is less than the theoretical separation distance, it means that installing monitoring devices at each permitted point in this virtual processing plan can achieve good effects. Therefore, define the permitted processing plan to distinguish different virtual processing plans; the permitted quantity is the total quantity of permitted points in the determined permitted processing plan.

[0166] Step S705: Determine the permitted quantity with the largest value according to the sorting rule, and define the permitted processing plan corresponding to this permitted quantity as an optional processing plan.

[0167] Through the sorting rule, the permitted quantity with the largest value can be determined, that is, the largest number of monitoring devices with good monitoring effects are added at this time, and the management adjustment effect is the best. Therefore, it can be defined as an optional processing plan. Among them, there must be multiple optional processing plans and further screening is required.

[0168] Step S706: Calculate the mean value of the filling invalid ratios corresponding to each permission point among the optional processing solutions to determine the mean invalid ratio, define the optional processing solution corresponding to the largest mean invalid ratio as the modification processing solution, and synchronously output the current management evaluation result and the modification processing solution to the display terminal.

[0169] The mean invalid ratio is the average of the corresponding filling invalid ratios. The larger this value is, the better the effect of the entire solution. At this time, define the optional processing solution corresponding to the largest mean invalid ratio as the modification processing solution to synchronously output, which can provide improvement suggestions for campus security management personnel, so as to add campus monitoring subsequently to improve the evaluation score and achieve effective management of campus security.

[0170] Refer to Figure 2 , based on the same inventive concept, an embodiment of the present invention provides a campus security management evaluation system, including:

[0171] An acquisition module, configured to acquire the overall distribution area of the campus and the effective monitoring areas of each monitoring device;

[0172] A processing module, connected to the acquisition module and the judgment module, for storing and processing information;

[0173] A judgment module, connected to the acquisition module and the processing module, for judging information;

[0174] The processing module determines the required monitoring area according to the preset monitoring division rules in the overall distribution area of the campus, and determines the overall monitoring area according to all the effective monitoring areas;

[0175] The judgment module judges whether the required monitoring area is completely within the overall monitoring area;

[0176] If the judgment module judges that the required monitoring area is not completely within the overall monitoring area, the processing module outputs a poor management signal to the preset display terminal;

[0177] If the judgment module judges that the required monitoring area is completely within the overall monitoring area, the processing module constructs a historical interval on the preset time axis with the current time point as the rear end point and a width of the preset historical duration;

[0178] The acquisition module acquires the effective monitoring images obtained by the monitoring devices within the historical interval, and enables the processing module to determine the personnel heat parameters of each position point in the required monitoring area according to each effective monitoring image;

[0179] The processing module determines the benchmark demand quantity corresponding to the personnel heat parameter according to the preset heat matching relationship;

[0180] The processing module defines the monitoring devices corresponding to the effective monitoring areas containing location points as bound devices, and counts according to the bound devices corresponding to each location point to determine the effective monitoring quantity;

[0181] The processing module defines the location points when the effective monitoring quantity is not less than the corresponding benchmark requirement quantity as effective points, and counts according to the effective points to determine the effective point quantity;

[0182] The processing module counts according to the location points in the required monitoring area to determine the overall point quantity, and calculates according to the effective point quantity and the overall point quantity to determine the effective monitoring ratio;

[0183] The processing module determines the management evaluation result corresponding to the effective monitoring ratio according to the preset evaluation matching relationship, and outputs the current management evaluation result to the display end;

[0184] The compensation situation analysis module analyzes and determines the compensation plan for the situation where the areas that need to be monitored on campus are not fully monitored;

[0185] The effective plan screening module is used to screen and process multiple effective plans that meet the requirements;

[0186] The personnel heat determination module is used to determine the personnel heat parameter;

[0187] The upper limit personnel quantity analysis module analyzes the determined upper limit personnel quantity;

[0188] The management evaluation result update module updates the management evaluation result according to the specific situation of the points where the monitoring degree does not meet the requirements;

[0189] The change processing plan determination module determines the change processing plan when the management evaluation result is not good.

[0190] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the above division of each functional module is used as an example. In actual applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working processes of the system, device and unit described above can refer to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

Claims

1. A campus safety management evaluation method, characterized in that: include: Obtain the overall distribution area of ​​the campus and the effective monitoring area of ​​each monitoring device; Determine the required monitoring area according to the preset monitoring division rules in the overall distribution area of ​​the campus, and determine the overall monitoring area according to all effective monitoring areas; Determine whether the required monitoring area is completely within the overall monitoring area; If the required monitoring area is not completely within the overall monitoring area, a poor management signal is output to the preset display terminal; If the required monitoring area is completely within the overall monitoring area, a historical interval with the current time point as the rear end point and a width of the preset historical duration is constructed on the preset time axis; Obtain valid monitoring images acquired by monitoring equipment within the historical interval, and determine the personnel heat parameters of each location point in the required monitoring area based on each valid monitoring image; Determine the baseline demand quantity corresponding to the personnel heat parameters according to the preset heat matching relationship; The monitoring devices corresponding to the effective monitoring area including the location point are defined as binding devices, and the binding devices corresponding to each location point are counted to determine the effective monitoring quantity; The location point where the effective monitoring quantity is not less than the corresponding benchmark demand quantity is defined as a valid point, and the valid points are counted to determine the number of valid points; Count the location points in the required monitoring area to determine the overall number of points, and calculate the effective monitoring ratio based on the number of effective points and the overall number of points; The management evaluation results corresponding to the effective monitoring ratio are determined according to the preset evaluation matching relationship, and the current management evaluation results are output to the display terminal.

2. The campus safety management evaluation method according to claim 1 is characterized in that: After managing the poor signal output, the campus safety management evaluation method also includes: Demand monitoring areas that are not within the overall monitoring area are defined as invalid supervision areas; Randomly generate compensation points in the overall distribution area of ​​the campus, and determine the local compensation area at the compensation point according to the preset compensation range; Determine a compensation scheme based on all compensation points, and determine an overall compensation area based on the local compensation areas of each compensation point in the compensation scheme; The compensation scheme corresponding to the invalid supervision area when the overall compensation area includes the invalid supervision area is defined as a valid scheme, and the compensation points in the valid scheme are counted to determine the compensation amount; The compensation quantity with the smallest value is determined according to a preset sorting rule, and the effective solution corresponding to the compensation quantity with the smallest value is defined as a reasonable solution, and the reasonable solution is synchronously output to the display end.

3. The campus safety management evaluation method according to claim 2 is characterized in that: After the compensation amount is determined, the campus safety management assessment method also includes: Determine whether there are at least two effective solutions with the same and minimum compensation amount; If there are no at least two effective solutions with the same and minimum compensation amount, the effective solution corresponding to the minimum compensation amount is defined as a reasonable solution; If there are at least two effective solutions with the same and minimum compensation amount, the effective solution corresponding to the minimum compensation amount is defined as the alternative solution; In each alternative plan, the entire compensation area that is not within the required monitoring area is defined as the redundant monitoring area, and the overall redundant area is determined based on all the redundant monitoring areas; The overall redundant area with the smallest value is determined according to the sorting rules, and the alternative plan corresponding to the overall redundant area is defined as a reasonable plan.

4. The campus safety management evaluation method according to claim 1 is characterized in that: The steps of determining the personnel heat parameters of each location point in the required monitoring area according to each valid monitoring image include: An equivalent area is defined with the location point as the center point and the preset unit distance as the radius, and an equivalent local image is defined in the effective monitoring image according to the equivalent area; Randomly demarcate a unit interval with a width of a preset unit time length in the historical interval, and perform feature analysis on each equivalent local image in the unit interval to determine the number of people in the interval; The number of people in the interval with the largest value is determined according to the sorting rules, and the number of people in this interval is defined as the upper limit number of people. The personnel heat parameter is determined by calculation based on the upper limit number of people and the unit time.

5. The campus safety management evaluation method according to claim 4 is characterized in that: After the upper limit of the number of personnel is determined, the campus safety management assessment method also includes: Calculate based on the upper limit number of personnel and the preset similar number to construct a similar interval, and define the unit interval corresponding to the number of interval personnel in the similar interval as an equivalent interval; Determine the equivalent specific dates based on the equivalent intervals, and count each equivalent specific date to determine the number of equivalent dates; Determine whether the number of equivalent dates is greater than the number of preset base dates; If the number of equivalent dates is greater than the number of base dates, the currently determined upper limit number of personnel will be maintained; If the number of equivalent dates is not greater than the number of base dates, the currently determined upper limit number of personnel will be excluded, and the upper limit number of personnel will be re-determined within the remaining interval number of personnel.

6. The campus safety management evaluation method according to claim 2 is characterized in that: After the management assessment results are determined, the campus safety management assessment method also includes: The location point where the effective monitoring quantity is less than the corresponding benchmark demand quantity is defined as an invalid point; The difference calculation is performed based on the effective monitoring quantity of the invalid point and the corresponding benchmark demand quantity to determine the monitoring difference quantity; Determine the monitoring deviation coefficient corresponding to the number of monitoring difference values ​​according to the preset deviation matching relationship, and perform mean calculation based on all monitoring deviation coefficients to determine the mean deviation coefficient; The preset adjustment matching relationship is used to determine the mean deviation coefficient and the evaluation adjustment parameters corresponding to the effective monitoring ratio, and the current management evaluation results are updated based on the evaluation adjustment parameters.

7. The campus safety management evaluation method according to claim 6 is characterized in that: After the management evaluation results are updated, the campus safety management evaluation method also includes: Determine whether the management evaluation results are within the preset correction result range; If the management evaluation result is not within the correction result range, the current management evaluation result is output to the display terminal; If the management evaluation result is within the correction result range, a virtual point is randomly generated in the overall distribution area of ​​the campus, and a local virtual area is determined at the virtual point according to the compensation range; Count the invalid points in the local virtual area to determine the internal invalid quantity, and calculate the invalid filling ratio based on the internal invalid quantity and the preset overall virtual quantity; The virtual point corresponding to the point where the proportion of ineffective filling is greater than the preset proportion of baseline demand is defined as a permission point, and all the permission points are combined to construct a permission set; Randomly select any number of permitted points in the permitted set to form a virtual treatment plan, and determine the permitted distance between any two permitted points in the virtual treatment plan; A virtual treatment plan in which there is no permitted separation distance less than a preset theoretical separation distance is defined as a permitted treatment plan, and the permitted points are counted in the permitted treatment plan to determine the permitted quantity; Determine the maximum number of licenses according to the sorting rule, and define the license processing scheme corresponding to the maximum number of licenses as an optional processing scheme; Among the optional processing schemes, the average is calculated according to the corresponding invalid filling ratio of each permission point to determine the average invalid ratio, and the optional processing scheme corresponding to the average invalid ratio with the largest value is defined as the modified processing scheme, and the current management evaluation results and the modified processing scheme are synchronously output to the display terminal.

8. A campus safety management and evaluation system, characterized in that: include: The acquisition module is used to obtain the overall distribution area of ​​the campus and the effective monitoring area of ​​each monitoring device; A processing module, connected to the acquisition module and the judgment module, for storing and processing information; A judgment module, connected with the acquisition module and the processing module, for judging the information; The processing module determines the required monitoring area according to the preset monitoring division rules in the overall distribution area of ​​the campus, and determines the overall monitoring area according to all the effective monitoring areas; The judgment module judges whether the required monitoring area is completely within the overall monitoring area; If the judgment module determines that the required monitoring area is not completely within the overall monitoring area, the processing module outputs a poor management signal to a preset display terminal; If the judgment module determines that the required monitoring area is completely within the overall monitoring area, the processing module constructs a historical interval with the current time point as the rear end point and a width of the preset historical length on the preset time axis; the acquisition module acquires the valid monitoring images acquired by the monitoring device within the historical interval, and enables the processing module to determine the personnel heat parameters of each position point in the required monitoring area based on each valid monitoring image; The processing module determines the baseline demand quantity corresponding to the personnel heat parameter according to the preset heat matching relationship; The processing module defines the monitoring devices corresponding to the effective monitoring area including the location point as binding devices, and counts the binding devices corresponding to each location point to determine the effective monitoring quantity; The processing module defines the position point when the effective monitoring quantity is not less than the corresponding reference demand quantity as a valid point, and counts the valid points to determine the number of valid points; The processing module counts the location points in the required monitoring area to determine the overall number of points, and calculates the effective monitoring ratio based on the number of effective points and the overall number of points; The processing module determines the management evaluation result corresponding to the effective monitoring ratio according to the preset evaluation matching relationship, and outputs the current management evaluation result to the display terminal.

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