Authority management method and system for access control system of building hall

Abstract

The invention discloses an authority management method and system for an access control system of a building hall, and relates to the technical field of authority management, and the authority management method comprises the following steps: associatively storing personnel identity information and corresponding authority levels to form an authority database, and adjusting the authority in real time according to time, events and personnel demands; the access control terminal reads the personnel identity recognition information, dynamically evaluates the credibility of the personnel identity recognition information, and judges whether the personnel are allowed to pass the access control according to the credibility; the permission verification server performs matching in a permission database according to the received identity recognition information to search a corresponding permission level; and according to the searched authority level, monitoring the number of times of accessing areas and floors exceeding the authority level of the person, and the access time of the person, and timely giving an alarm for abnormal behaviors according to a monitoring result. According to the invention, by integrating multiple security authentication means, the problems of single identity authentication form and low security are solved, and the security protection capability of the system is improved.

Description

Technical Field

[0001] This invention relates to the field of access control technology, and more specifically, to a method and system for access control in building and public facilities. Background Technology

[0002] Access control systems for government buildings and public facilities typically refer to the technical means used to manage and control personnel access to specific locations (such as office buildings, government agencies, and enterprises). Currently, access control systems for government buildings and public facilities employ relatively traditional methods, usually using simple, fixed permission assignment. For example, permissions are assigned solely based on personnel's position or department, making it difficult to flexibly adjust according to actual usage scenarios and times. This results in situations such as ad-hoc meetings or equipment maintenance where it is impossible to quickly and accurately assign appropriate permissions to relevant personnel, reducing management efficiency. The shortcomings of existing technologies include:

[0003] Existing methods for identity authentication are simplistic, relying heavily on card swiping or passwords, resulting in limited security and susceptibility to issues such as unauthorized access. Furthermore, their data recording and analysis capabilities are weak, failing to provide robust support for subsequent management decisions. Therefore, this invention provides a method and system for access control in building and public facility access control systems.

[0004] To address the above problems, this invention proposes a solution. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide a method and system for access control of building and public facilities, thereby solving the problems mentioned in the background art through a method for access control of building and public facilities.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A method for access control in building management systems includes the following steps:

[0008] Collect personnel information, associate and store personnel identity information with corresponding permission levels to form a permission database, and adjust permissions in real time according to time, events and personnel needs;

[0009] When personnel enter the building, they trigger the access control system. The access control terminal reads the personnel's identification information and dynamically assesses the credibility of the identification information. Based on the credibility, it determines whether to allow the personnel to pass through the access control system.

[0010] The access control terminal sends the read identity information to the permission verification server. The permission verification server matches and searches for the corresponding permission level in the permission database based on the received identity information.

[0011] Based on the identified permission level, monitor the number of times the person accesses areas and floors beyond their permission level, as well as the time of their entry and exit, and issue timely alerts for abnormal behavior based on the monitoring results.

[0012] In a preferred embodiment, the step of associating and storing personnel identity information with corresponding permission levels includes:

[0013] Based on personnel identity and needs, a comprehensive permission system is configured for different personnel, including time permissions, area permissions, floor access permissions, and personnel-specific permissions;

[0014] The time permissions set the specific time period that personnel can access, the area permissions specify the building areas that can be entered, the floor permissions restrict the floors that can be reached, and the personnel permissions are set according to the special permission needs of specific personnel.

[0015] In a preferred embodiment, the process of adjusting permissions in real time based on time, events, and personnel needs is as follows:

[0016] Based on actual needs, system administrators pre-enter various event information and corresponding permission templates into the management platform;

[0017] When an event occurs, the administrator selects the corresponding event in the system, and the system automatically assigns permissions to the relevant personnel according to the preset template and sets the validity period of the permissions;

[0018] Once the permission expires, the system will automatically revoke the permission. If an extension is needed, administrators can do so within the system.

[0019] In a preferred embodiment, the process by which the access control terminal reads personnel identification information is as follows:

[0020] When a person approaches the access control device, they place their card in the card reader area. The access control device reads the card information and sends the information to the authentication server.

[0021] The access control device activates its biometric identification function and compares the information with the information in the database;

[0022] After the authentication server verifies the card information and biometric information, it sends a dynamic password to the mobile phone associated with the person.

[0023] Personnel enter a dynamic password on the access control device, and the authentication server verifies it again.

[0024] In a preferred embodiment, the process for dynamically assessing the credibility of personnel identification information is as follows:

[0025] The system collects data in real time during the authentication process, including the number of card swipes, the time for facial feature data collection, and the speed of password input.

[0026] Machine learning algorithms are used to analyze this data and dynamically assess the credibility of the person's identity.

[0027] In a preferred embodiment, the process of determining whether to allow personnel to pass through the access control system based on credibility is as follows:

[0028] If the credibility is less than the first preset threshold, passage is allowed.

[0029] If the value is greater than the first preset threshold and less than the second preset threshold, then secondary authentication is performed;

[0030] If the value exceeds the second threshold, passage is denied and the abnormal situation is recorded.

[0031] Both the first threshold and the second threshold are greater than 0.

[0032] In a preferred embodiment, the process of matching and searching for the corresponding permission level in the permission database is as follows:

[0033] The access control terminal packages the collected identity information into a data packet and sends it to the authorization verification server via the network;

[0034] After receiving the identity information, the authorization verification server decodes and parses the information to confirm its integrity and correctness.

[0035] The acquired personnel identity information is compared with the pre-stored permission data;

[0036] Once the identity is confirmed, the verification server will look up the user's permission level in the permission database based on the identity information;

[0037] The access permission levels include allowed access time, allowed access area, and allowed access floor.

[0038] In a preferred embodiment, the process of monitoring the number of times a person accesses areas and floors beyond their permission level, as well as the person's entry and exit times, is as follows:

[0039] If the access control system does not record the time a person leaves within the specified access time, it will record that the person exceeded the permitted access time.

[0040] It also retrieves the number of times a person attempted to access areas or floors beyond their permission level during the access period;

[0041] Based on the time the user exceeds the allowed access period, an access warning assessment coefficient is obtained.

[0042] In a preferred embodiment, the process of issuing timely alarms for abnormal behavior based on monitoring results is as follows:

[0043] The access warning assessment coefficient is compared and analyzed with the preset warning threshold. If the access warning assessment coefficient is greater than the preset warning threshold, it indicates that the severity of the abnormal behavior of the person is relatively high. It is necessary to issue an alarm to the person in a timely manner and take security measures immediately, such as locking the account and notifying security personnel.

[0044] If the access warning assessment coefficient is less than the preset warning threshold, it indicates that the severity of the abnormal behavior of the person is relatively low, and there is no need to issue an alarm for the person at this time. The person's behavior needs to be continuously monitored.

[0045] An access control system for building and public facilities includes:

[0046] The data collection module is used to collect personnel information, associate and store personnel identity information with corresponding permission levels to form a permission database, and adjust permissions in real time according to time, events and personnel needs.

[0047] The identification module is used to trigger access control when people enter buildings and facilities. The access control terminal reads the personnel's identification information and dynamically evaluates the credibility of the personnel's identification information. Based on the credibility, it determines whether to allow the personnel to pass through the access control.

[0048] The matching module is used by the access control terminal to send the read identity recognition information to the permission verification server. The permission verification server matches the received identity recognition information in the permission database to find the corresponding permission level.

[0049] The early warning module is used to monitor the number of times a person accesses areas and floors beyond their authorized level, as well as the time of their entry and exit, based on the found permission level, and to issue timely alarms for abnormal behavior based on the monitoring results.

[0050] This invention discloses a method for access control in building management systems, along with the system's technical effects and advantages:

[0051] 1. This invention ensures that only authorized personnel can enter specific areas through identity authentication and access permission allocation. The system can precisely control the personnel entering different areas and update personnel permissions in real time. The system can record and monitor every access control operation in real time, ensuring that all entry and exit behaviors are traceable, and abnormal situations can be reported and handled immediately. The system supports flexible permission settings, allowing different permissions to be assigned to different personnel based on different floors, areas, or time periods. By integrating multiple security authentication methods, the system's security protection capabilities are improved, avoiding the vulnerabilities of traditional access control methods.

[0052] 2. This invention automates personnel access control through efficient access management, reducing the need for manual intervention and improving management efficiency. Administrators can easily set and manage permissions through the software backend, eliminating the need to manually issue keys or paper passes. The access control system has data analysis capabilities, automatically identifying any potential security risks. It combines multiple authentication methods, reducing the risk of relying on a single authentication method and ensuring higher authentication accuracy. All entry and exit records are uploaded and archived in real time for easy post-event review and auditing. Managers can use data analysis to optimize access control strategies, improving the precision and scientific nature of management. The system provides a user-friendly access management interface, reducing manual intervention and improving user experience and ease of operation. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the access control method for a building access control system according to the present invention.

[0054] Figure 2 This is a schematic diagram of the access control system structure for a building access control system according to the present invention. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0056] Example 1, Figure 1 This invention presents a method for access control management in a building access control system.

[0057] S10: Collect personnel information, associate and store personnel identity information and corresponding permission levels to form a permission database, and adjust permissions in real time according to time, events and personnel needs.

[0058] Based on personnel identity and needs, a comprehensive permission system is configured for different personnel, including time permissions, area permissions, floor access permissions, and personnel-specific permissions;

[0059] Among them, time permissions set the specific time period that personnel can access, area permissions specify the building and hall areas that can be entered, floor permissions restrict the floors that can be reached, and personnel permissions are set according to the special permission needs of specific personnel.

[0060] Based on actual needs, system administrators pre-enter various event information and corresponding permission templates into the management platform. For example, different permission settings are assigned to events such as meetings and maintenance.

[0061] When an event occurs, the administrator selects the corresponding event in the system, and the system automatically assigns permissions to the relevant personnel according to the preset template and sets the validity period of the permissions;

[0062] Once the permission expires, the system will automatically revoke the permission. If an extension is needed, administrators can do so within the system.

[0063] Update personnel permissions, including modifying time permissions, area permissions, floor permissions, and personnel permissions; after the permissions are updated, they are synchronized to all terminals of the access control system in real time to ensure the timeliness and accuracy of permission management.

[0064] For example, when holding ad-hoc meetings, the system automatically grants participants access to the corresponding meeting room and surrounding areas during the meeting; equipment maintenance personnel are granted temporary access to the equipment area when performing tasks, and the access is automatically revoked after the task is completed; the system automatically matches the initial permission level according to the personnel's category, such as assigning basic office area access to ordinary employees by default; department heads can also access specific file storage areas within their department in addition to the basic office area.

[0065] The system monitors the distribution of people, environmental conditions (such as fire alarms and emergency evacuation signals), and time factors in real time within the building. Based on this real-time data, it uses intelligent algorithms to dynamically adjust personnel permissions. For example, when a fire alarm is triggered, it automatically adjusts the permissions of all personnel to allow them to quickly access the nearest safe exit; during non-working hours, it automatically restricts access to certain areas.

[0066] To address the need for temporary visitor access, the system introduces a social relationship verification mechanism. Visitors can send temporary access invitations to visitors through their social media accounts linked to the access control system. Once the visitor accepts the invitation and verifies their identity on the social media platform, they will receive the corresponding temporary time-based, area-based, and floor-based access permissions, enabling quick and convenient visitor access management.

[0067] The collected personnel identity information and the set permission level information are stored in the permission database according to a specific data structure.

[0068] For example, use a unique identifier for a person (such as an ID card number) as the primary key, and store other identity information and permission levels as fields to ensure the uniqueness and relevance of the data.

[0069] Regularly back up the permissions database to prevent data loss, and set strict data access permissions so that only authorized administrators can operate on the database.

[0070] S20: When personnel enter the building, they trigger the access control system. The access control terminal reads the personnel's identification information and dynamically assesses the credibility of the personnel's identification information. Based on the credibility, it determines whether to allow the personnel to pass through the access control system.

[0071] It integrates three authentication methods: card swiping, facial recognition, and dynamic password;

[0072] When a person approaches the access control system, the system first reads the card information, then performs biometric identification, and finally sends a dynamic password to the associated mobile phone. Only when all three verifications are successful can the person pass through, which greatly improves security.

[0073] When a person approaches the access control device, they place their card in the card reader area. The access control device reads the card information and sends the information to the authentication server.

[0074] At the same time, the access control equipment activates its biometric identification function, collects facial images of personnel, and compares them with information in the database.

[0075] After the authentication server verifies the card information and biometric information, it sends a dynamic password to the mobile phone associated with the person.

[0076] Personnel enter a dynamic password into the access control device, and the authentication server verifies it again;

[0077] The system employs three authentication methods: card swiping, facial recognition, and password input. It collects various data in real time during the authentication process, including the number of card swipings, the time taken to collect facial feature data, and the speed of password input.

[0078] Machine learning algorithms are used to analyze this data and dynamically assess the credibility of personnel identities.

[0079] The specific formula for calculating the credibility is as follows: In the formula, K represents the credibility of the person's identity, and t represents the time of facial feature data collection. This is a weighting factor for the acquisition time of facial feature data, where v is the speed of password input. This is the speed weighting factor for password input, where c is the number of card swipes. It is a weighting factor for the number of card swipes, among which , , All are greater than 0;

[0080] If the credibility is less than the first preset threshold, passage is allowed.

[0081] If the value is greater than the first preset threshold and less than the second preset threshold, then secondary authentication is performed;

[0082] If the value exceeds the second threshold, passage is denied and the abnormal situation is recorded.

[0083] Both the first threshold and the second threshold are greater than 0.

[0084] Dynamically assessing the credibility of personnel identities plays a crucial role in access control systems for government buildings and facilities, specifically in the following aspects:

[0085] Enhanced security: Dynamic identity verification assesses an individual's credibility in real time based on factors such as behavior, location, and time, reducing potential security risks such as identity theft and forgery. For example, by comprehensively analyzing employees' entry and exit times and historical behavioral patterns, the system can identify abnormal behaviors that do not conform to normal patterns, thereby preventing unauthorized personnel from entering important areas.

[0086] Flexible access control: Dynamic assessment is not just a static identity verification process; it allows for real-time adjustments to personnel permissions as time and context change. For example, certain high-risk areas may require higher levels of identity verification (such as fingerprint or facial recognition dual authentication), while simpler verification methods can be used in ordinary areas. This flexible access control ensures that access is not overly restricted while also guaranteeing the security of high-risk areas.

[0087] Risk-based access control: Dynamic assessment can help evaluate the credibility of personnel identities based on actual circumstances and the current environment, thereby enabling risk-based access control. For example, if a person enters a high-risk area during a specific time period (such as at night or on holidays), the system can automatically enhance the authentication level and conduct stricter identity checks to prevent unauthorized personnel from entering.

[0088] Monitoring and auditing functions: By dynamically assessing identity credibility, the access control system can establish complete monitoring and auditing records, which is of great significance for later investigations and tracing the course of events. The system can record information such as the specific time, area, and verification method of personnel entry. In the event of an anomaly, potential security problems can be quickly identified by comparing and evaluating the data.

[0089] Intelligent and automated management: Access control systems that dynamically assess identity credibility can intelligently and automatically process identity verification, reducing manual intervention and improving efficiency. In large buildings such as government buildings, traditional manual identity verification is prone to errors, while dynamic assessment, through real-time data feedback and intelligent decision-making, ensures that only highly authenticated personnel can enter specific areas.

[0090] Enhancing user experience: Dynamic assessment, by introducing diverse identity verification methods (such as facial recognition, behavioral analysis, and geolocation verification), makes access control systems more intelligent, reducing waiting times for people entering and exiting and providing a smoother access experience. Simultaneously, by assessing the credibility of identities in real time, it's possible to more accurately control which personnel have access to which areas, avoiding unnecessary restrictions or obstructions.

[0091] S30, the access control terminal sends the read identity recognition information to the permission verification server. The permission verification server matches and searches for the corresponding permission level in the permission database based on the received identity recognition information.

[0092] The access control terminal packages the collected identity information into data packets and sends them to the authorization verification server via a network (such as a local area network, Wi-Fi, or wired communication).

[0093] After receiving the identity information, the authorization verification server decodes and parses the information to confirm its integrity and correctness.

[0094] The acquired personnel identity information is compared with the pre-stored permission data.

[0095] Once the identity is confirmed, the verification server will look up the user's permission level in the permission database based on the identity information;

[0096] The permission database typically contains basic user information, role information, permission scope, validity period, etc. The permission verification server obtains the corresponding permission data based on the matching user information.

[0097] The access permission levels include allowed access time, allowed access area, and allowed access floor.

[0098] S40: Based on the found permission level, monitor the number of times the person accesses areas and floors beyond their permission level, as well as the time of the person's entry and exit, and issue timely alarms for abnormal behavior based on the monitoring results.

[0099] The access control system collects and records personnel entry and exit logs in real time, including the time of each passage, the identity of the person, the area and floor accessed;

[0100] At the same time, monitor whether personnel have exceeded the time limit for leaving, and whether they have accessed unauthorized areas, and record these abnormal situations in detail.

[0101] If the access control system does not record the time a person leaves within the specified access time, it will record that the person exceeded the permitted access time.

[0102] It also retrieves the number of times a person attempted to access areas or floors beyond their authorized access level during the access period; combined with the time the person exceeded their permitted access, an access warning assessment coefficient is obtained, calculated using the following formula: In the formula, P is the access control warning evaluation coefficient. This refers to the number of times a person attempts to access areas or floors beyond their authorized access level. W represents the weight of the number of times a person attempts to access an area or floor beyond their permission level, and W is the time the person exceeds their allowed access time. It is the weight of the time that a person exceeds the allowed access time;

[0103] The access warning assessment coefficient is compared and analyzed with the preset warning threshold. If the access warning assessment coefficient is greater than the preset warning threshold, it indicates that the severity of the abnormal behavior of the person is relatively high. It is necessary to issue an alarm to the person in a timely manner and take security measures immediately, such as locking the account and notifying security personnel.

[0104] If the access warning assessment coefficient is less than the preset warning threshold, it indicates that the severity of the abnormal behavior of the person is relatively low, and there is no need to issue an alarm for the person at this time. The person's behavior needs to be continuously monitored.

[0105] Example 2, Figure 2 This invention presents an access control system for building and public facilities, which is a permission management system.

[0106] The data collection module is used to collect personnel information, associate and store personnel identity information with corresponding permission levels to form a permission database, and adjust permissions in real time according to time, events and personnel needs.

[0107] The identification module is used to trigger access control when people enter buildings and facilities. The access control terminal reads the personnel's identification information and dynamically evaluates the credibility of the personnel's identification information. Based on the credibility, it determines whether to allow the personnel to pass through the access control.

[0108] The matching module is used by the access control terminal to send the read identity recognition information to the permission verification server. The permission verification server matches the received identity recognition information in the permission database to find the corresponding permission level.

[0109] The early warning module is used to monitor the number of times a person accesses areas and floors beyond their authorized level, as well as the time of their entry and exit, based on the found permission level, and to issue timely alarms for abnormal behavior based on the monitoring results.

[0110] The above formulas are all dimensionless calculations. The formulas are derived from software simulations based on a large amount of collected data to obtain the most recent real-world results. The preset parameters in the formulas are set by those skilled in the art according to the actual situation.

[0111] The above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, in the form of a computer program product.

[0112] Those skilled in the art will recognize that the modules and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0113] In addition, the functional modules in the various embodiments of this application can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module.

[0114] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0115] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for access control management in a building / hall access control system, characterized in that, Includes the following steps: Collect personnel information, associate and store personnel identity information with corresponding permission levels to form a permission database, and adjust permissions in real time according to time, events and personnel needs; When personnel enter the building, they trigger the access control system. The access control terminal reads the personnel's identification information and dynamically assesses the credibility of the identification information. Based on the credibility, it determines whether to allow the personnel to pass through the access control system. The access control terminal sends the read identity information to the permission verification server. The permission verification server matches and searches for the corresponding permission level in the permission database based on the received identity information. Based on the identified permission level, monitor the number of times the person accesses areas and floors beyond their permission level, as well as the time of their entry and exit, and issue timely alerts for abnormal behavior based on the monitoring results.

2. The access control method for a building access control system according to claim 1, characterized in that, The method of associating and storing personnel identity information with corresponding permission levels includes: Based on personnel identity and needs, a comprehensive permission system is configured for different personnel, including time permissions, area permissions, floor access permissions, and personnel-specific permissions; The time permissions set the specific time period that personnel can access, the area permissions specify the building areas that can be entered, the floor permissions restrict the floors that can be reached, and the personnel permissions are set according to the special permission needs of specific personnel.

3. The access control method for a building access control system according to claim 2, characterized in that, The process of adjusting permissions in real time based on time, events, and personnel needs is as follows: Based on actual needs, system administrators pre-enter various event information and corresponding permission templates into the management platform; When an event occurs, the administrator selects the corresponding event in the system, and the system automatically assigns permissions to the relevant personnel according to the preset template and sets the validity period of the permissions; Once the permission expires, the system will automatically revoke the permission. If an extension is needed, administrators can do so within the system.

4. The access control method for a building access control system according to claim 3, characterized in that, The process by which the access control terminal reads personnel identification information is as follows: When a person approaches the access control device, they place their card in the card reader area. The access control device reads the card information and sends the information to the authentication server. The access control device activates its biometric identification function and compares the information with the information in the database; After the authentication server verifies the card information and biometric information, it sends a dynamic password to the mobile phone associated with the person. Personnel enter a dynamic password on the access control device, and the authentication server verifies it again.

5. The access control method for a building access control system according to claim 4, characterized in that, The process for dynamically assessing the credibility of personnel identification information is as follows: The system collects data in real time during the authentication process, including the number of card swipes, the time for facial feature data collection, and the speed of password input. Machine learning algorithms are used to comprehensively analyze the number of card swipes, the time for collecting facial feature data, and the speed of password input to dynamically assess the credibility of a person's identity.

6. The access control method for a building access control system according to claim 5, characterized in that, The process of determining whether to allow personnel to pass through the access control system based on credibility is as follows: If the credibility is less than the first preset threshold, passage is allowed. If the value is greater than the first preset threshold and less than the second preset threshold, then secondary authentication is performed; If the value exceeds the second threshold, passage is denied and the abnormal situation is recorded. Both the first threshold and the second threshold are greater than 0.

7. The access control method for a building access control system according to claim 6, characterized in that, The process of matching and searching for the corresponding permission level in the permission database is as follows: The access control terminal packages the collected identity information into a data packet and sends it to the authorization verification server via the network; After receiving the identity information, the authorization verification server decodes and parses the information to confirm its integrity and correctness. The acquired personnel identity information is compared with the pre-stored permission data; Once the identity is confirmed, the verification server will look up the user's permission level in the permission database based on the identity information; The access permission levels include allowed access time, allowed access area, and allowed access floor.

8. The access control method for a building access control system according to claim 7, characterized in that, The process of monitoring the number of times a person accesses areas and floors beyond their authorized access level, as well as the person's entry and exit times, is as follows: If the access control system does not record the time a person leaves within the specified access time, it will record that the person exceeded the permitted access time. It also retrieves the number of times a person attempted to access areas or floors beyond their permission level during the access period; Based on the time the user exceeds the allowed access period, an access warning assessment coefficient is obtained.

9. The access control method for a building access control system according to claim 8, characterized in that, The process of issuing timely alerts for abnormal behavior based on monitoring results is as follows: The access warning assessment coefficient is compared and analyzed with the preset warning threshold. If the access warning assessment coefficient is greater than the preset warning threshold, it indicates that the severity of the abnormal behavior of the personnel is relatively high. It is necessary to issue an alarm to the personnel in a timely manner and take safety measures immediately. If the access warning assessment coefficient is less than the preset warning threshold, it indicates that the severity of the abnormal behavior of the person is relatively low, and there is no need to issue an alarm for the person at this time. The person's behavior needs to be continuously monitored.

10. An access control system for building and public facilities, characterized in that, It includes a data acquisition module, an identification module, a matching module, and an early warning module, and these modules are interconnected. The data collection module is used to collect personnel information, associate and store personnel identity information with corresponding permission levels to form a permission database, and adjust permissions in real time according to time, events and personnel needs. The identification module is used to trigger access control when people enter buildings and facilities. The access control terminal reads the personnel's identification information and dynamically evaluates the credibility of the personnel's identification information. Based on the credibility, it determines whether to allow the personnel to pass through the access control. The matching module is used by the access control terminal to send the read identity recognition information to the permission verification server. The permission verification server matches the received identity recognition information in the permission database to find the corresponding permission level. The early warning module is used to monitor the number of times a person accesses areas and floors beyond their authorized level, as well as the time of their entry and exit, based on the found permission level, and to issue timely alarms for abnormal behavior based on the monitoring results.

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