Intelligent access control system based on automatic identification

Abstract

The intelligent access control system based on automatic identification comprises an authority registration module and a temporary authorization module, the permission registration module comprises a registration authentication unit, a data checking unit and an authorization binding unit; the registration authentication unit records unauthorized and authenticated personnel as foreign personnel and records identity data of the foreign personnel; the data checking unit checks the identity information of the external personnel, and registers and records the identity information as temporary access personnel after the identity information passes; the authorization binding unit obtains information of foreign personnel and inputs the information into an authorization library of the identification system, and grants access authority to the foreign personnel; the temporary authorization module comprises a route prediction unit and a time checking unit; the route prediction unit predicts the route of the temporary access personnel, and the time checking unit predicts the residence time of the temporary access personnel and compares the residence time with the actual residence time so as to generate different signals. According to the invention, the access control management efficiency can be improved, and the waste of human resources is reduced.

Description

Technical Field

[0001] The invention relates to an access control system, in particular to an intelligent access control system based on automatic identification. Background Art

[0002] The intelligent access control system is an important part of modern security management. It integrates advanced automatic identification technology and information management methods to provide efficient and convenient access control solutions for various places. The system authenticates the identity of people entering and leaving through card readers, password input, biometrics and other methods to ensure that only authorized personnel can pass. The intelligent access control system can not only record the information of people entering and leaving in real time, but also work with alarm systems, fire protection systems, etc. to provide all-round security protection and improve the safety and management efficiency of the place.

[0003] In daily life scenarios, smart access control systems are usually installed at the entrances and exits of residential areas and communities to record the information of people entering and leaving, and to block unauthorized or unregistered people from entering and leaving. On the other hand, with the rapid development of the takeaway industry, express delivery industry and letter transportation industry, practitioners in related industries need to frequently enter and exit different communities to complete their work. However, the existing smart access control system cannot manage the entry and exit of related practitioners well, and generally relies on manual release. It is difficult to effectively record the entry and exit of related practitioners, which seriously affects the convenience of door-to-door meal delivery and door-to-door delivery, and has certain safety hazards and defects. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an intelligent access control system based on automatic identification, which can effectively solve the problem that the intelligent access control system in the prior art has defects in the access management of non-residents inside the community.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The intelligent access control system based on automatic identification includes an identification system and an electric gate, which records the managed area as the control area, and also includes a permission registration module and a temporary authorization module;

[0007] The permission registration module includes a registration authentication unit, a data verification unit and an authorization binding unit;

[0008] The registration and authentication unit records persons who are not authorized by the identification system and are prohibited from passing through the electric gate as outsiders. After confirmation by the management personnel, the registration and authentication unit registers and authenticates outsiders who enter for the first time, and records the identity data of outsiders to form an information set;

[0009] The data checking unit checks the data in the information set of the outsider, and after the verification is passed, the outsider is registered as a temporary in-and-out person, and the current time is recorded as the registration time;

[0010] The authorization binding unit identifies the means of transportation of temporary entrants and in-and-out personnel within a certain period of time at the time of registration and binds the information of the temporary entrants and in-and-out personnel;

[0011] The temporary authorization module grants the temporary entry and exit personnel access rights when the data of the temporary entry and exit personnel and the transportation tools bound to them obtained by the identification system are matched and passed, and manages the entry and exit rights of the temporary entry and exit personnel;

[0012] The temporary authorization module includes a route prediction unit and a time verification unit;

[0013] The route prediction unit plans and predicts the routes of temporary in-and-out personnel based on their destinations and map data of the control area;

[0014] The time verification unit calculates the passage time required for temporary entry and exit personnel based on the predicted route, compares the estimated time with the actual stay time of the temporary entry and exit personnel, and generates different signals to control whether the identification system grants access rights.

[0015] Registration and certification unit registration and certification, including:

[0016] 1) Obtain facial information, fingerprint information, contact number and work certification information of outsiders;

[0017] 2) Save the work authentication information of outsiders, record the fingerprint information, name, contact number, work unit and work number of outsiders in the same data set, record it as an information set, and enter it into the identification system's verification database.

[0018] The data verification unit verification includes:

[0019] 1) Obtain the fingerprint information of the outsider and compare it with the fingerprint information in the preset dangerous person fingerprint database one by one, and calculate the similarity of each comparison;

[0020] 2) Extract the maximum similarity and compare it with the preset similarity threshold. When the maximum similarity is less than the similarity threshold, obtain the work unit and work number of the outsider;

[0021] 3) A unit information database is preset. When a matching work unit and work number exist in the unit information database, the name of the outsider is checked against the name corresponding to the work number in the unit information database, and the outsider is recorded as a temporary entrant and the current time is recorded as the registration time.

[0022] Authorization binding unit binding, specifically including:

[0023] 1) The authorization binding unit obtains the facial information and fingerprint information of temporary entrants and enters them into the authorization library of the recognition system, granting entry and exit rights to temporary entrants;

[0024] 2) When the temporary entrant passes through the identification system, he / she will be authenticated for right of passage and the electric gate will be opened to let him / her pass. When the temporary entrant passes through the identification system for the first time, the license plate number of the vehicle used by the temporary entrant will be obtained through the automatic license plate recognition technology;

[0025] 3) At the same time, the time difference between the current time and the registration time of the temporary entry and exit personnel is calculated as the registration time difference, and a registration time difference threshold is set. The calculation formula of the registration time difference threshold t is Wherein, L represents the distance between the temporary entry and exit personnel information registration location and the current identification system location, and v is the preset walking speed value;

[0026] 4) When the registration time difference is less than the registration time difference threshold, the license plate number is bound to the temporary entry and exit personnel;

[0027] 5) When the registration time difference is greater than or equal to the registration time difference threshold, a binding abnormality signal is generated, and the staff will check and verify the temporary entry and exit personnel and their means of transportation. After the temporary entry and exit personnel and their means of transportation pass the check, the license plate number is bound to the temporary entry and exit personnel.

[0028] 6) When personal information and transportation information are verified to be correct, access permission will be granted.

[0029] The route prediction unit plans the predicted route, including:

[0030] 1) Obtain the destination data of temporary in-and-out personnel, which includes the building number and floor; the system is preset with all the building numbers and floor information in the control area to form a floor database. When passing through the identification system, temporary in-and-out personnel enter the building number and floor they need to go to to form the destination data. The destination data entered by the temporary in-and-out personnel is compared with the data in the floor database. When all the data in the destination data can find the corresponding data in the floor database and match it, go to step 2), otherwise, generate a data abnormality signal;

[0031] 2) Obtain the building number data in the destination data and record it as the target building number. A plane map of the control area is preset, and the plane map has the corresponding positions of all building numbers. The target building number is marked in the plane map and recorded as the middle point. The number of middle points is recorded as N;

[0032] 3) When N is equal to 1, mark all exits of the control area on the plane map, select the exit closest to the middle point as the end point, draw the shortest route through the entrance, middle point, and end point and record it as the shortest path;

[0033] 4) When N is greater than 1, select the nearest midpoint to the temporary entrance for people to enter and exit as the initial point, mark all exits of the control area in the plane map, extract the nearest midpoint to each exit and calculate its distance to the nearest exit as the nearest distance value, extract the nearest exit corresponding to the midpoint with the smallest nearest distance value except the initial point as the end point, take the entrance as the starting point, the end point as the end point, and all the midpoints as the passing points, and calculate the shortest path through the starting point, the end point and all the passing points through the shortest path model algorithm;

[0034] 5) Display the plan map of the control area and the route map corresponding to the shortest path to temporary entrants and control the opening of the electric gate, and record the current time as the entry time;

[0035] 6) When a data abnormality signal is generated, the electric gate is closed and the access rights of temporary entrants are locked. An abnormality verification instruction is sent to the nearest staff member's handheld terminal. The staff member verifies the temporary entrants. After verification, 1)-5) are repeated.

[0036] Time verification unit verification, including:

[0037] 1) Obtain the shortest path and calculate the distance of the shortest path, which is recorded as the total distance S;

[0038] 2) Obtain the total number of floors L' corresponding to all waypoints and all floor data L corresponding to each waypoint i , calculate the floor influence value LD of each passing point,

[0039] Where: i is the serial number of each floor data, i = 1, 2, ..., j, j is the total number of floor data;

[0040] 3) Calculate the sum of all floor impact values ​​and record it as the floor duration parameter T L , the total distance S and floor time parameter T L Substitute into the formula Calculate in and get the estimated time length T′;

[0041] Among them: μ1 is the preset weight coefficient;

[0042] 4) The authorized access time for temporary entrants is limited to T′, starting from the moment of entry; within the authorized access time, temporary entrants are allowed to leave through the electric gate at the exit of the control area after being identified and authenticated by the identification system; when the authorized access time is exceeded, the access rights of temporary entrants are locked and a data anomaly signal is generated when they pass through the identification system, and an abnormality verification instruction is sent to the nearest staff member's handheld terminal.

[0043] It also includes a passage checking module, which checks the routes taken by temporary in and out personnel;

[0044] The passage verification module includes a feature recognition unit and a verification analysis unit;

[0045] The feature recognition unit captures and recognizes the features of temporary entrants when they enter the control area;

[0046] The verification and analysis unit records and monitors the routes of temporary in and out personnel through the second high-definition camera at all building entrances in the control area, and verifies the routes of temporary in and out personnel based on the recorded data.

[0047] The feature recognition unit obtains a full-frame image of temporary entrants through a first high-definition camera at the entrance of the control area, and establishes a feature sequence based on the full-frame image.

[0048] The characteristic sequence is established, including:

[0049] 1) Identify the color of the person's outline in the full picture;

[0050] 2) There are multiple color labels preset, the proportion of different color labels in the full picture is obtained and a proportion bar chart is established to obtain the contour area proportion value D of the person in the full picture;

[0051] 3) Extract the three color labels with the highest proportion and form the first set [(A, a), (B, b), (C, c)] in order of proportion, where A, B, C represent the color labels with the first, second, and third proportions respectively, a, b, c represent the proportion values ​​of A, B, and C respectively, and the first set is combined with the contour area proportion value D to form the feature sequence [(A, a), (B, b), (C, c), D].

[0052] The verification and analysis unit verifies the route, including:

[0053] 1) Record the characteristic number series of temporary in-and-out personnel as the target characteristic number series, obtain the full-frame images of all personnel entering the camera range through the second high-definition camera in front of each building, and establish the corresponding characteristic number series as the comparison characteristic number series;

[0054] 2) Compare the comparison feature sequence with the target feature sequence; when the comparison feature sequence is the same as the target feature sequence, obtain the recording time and the corresponding building number of the comparison feature sequence, so as to draw the movement route of the temporary in-and-out personnel according to the recording time sequence and the building number;

[0055] 3) When the moving route is compared with the predicted route map; when the two are completely consistent, a route consistency signal is generated; when all the building numbers corresponding to the waypoints of the two are consistent but the sequence is inconsistent, a route change signal is generated; when the building numbers of the corresponding waypoints of the two are inconsistent, a route abnormality signal is generated.

[0056] The present invention provides an intelligent access control system based on automatic identification, which has the following technical effects:

[0057] 1) The registration and authentication unit and the data verification unit in the present invention can register and verify the information of outsiders, thereby ensuring that the access control system can grant access rights to authorized personnel on the premise that the information of the authorized personnel meets the requirements. The authorization binding unit can more quickly and conveniently bind temporary entrants and the transportation vehicles they use, so that temporary entrants can more conveniently take the vehicle through the access control to complete their work.

[0058] 2) The route prediction unit in the present invention can plan the route of temporary entrants according to their destination data. On the one hand, it can facilitate the route planning of temporary entrants and recommend suitable routes for them when they are not familiar with the internal roads of the community; on the other hand, it can also help predict the routes of temporary entrants and exits, and reasonably predict the stay time of temporary entrants and exits in the control area according to the distance of their routes and the floor-related data of the destination, thereby realizing lateral management and supervision of their behavior, and effectively preventing temporary entrants and exits from staying excessively in the control area; compared with the management method in the prior art, it is more intelligent, and there is no need for management personnel to guard at all times. Only when abnormal situations occur, the auxiliary verification of management personnel is required, which improves the efficiency of access control management and reduces the waste of human resources.

[0059] 3) The present invention can establish different feature number sequences for different temporary entrants and exits by setting feature number sequences, thereby facilitating differentiation and identification. Then, the movement routes of temporary entrants and exits are checked according to the unique feature number sequences of the temporary entrants and exits, so that the movement routes of temporary entrants and exits in the control area can be monitored more conveniently. When the temporary entrants and exits have abnormal movements, route abnormality signals are generated, which are convenient for management personnel to verify and supervise, thereby better ensuring the safety in the control area. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0061] Figure 1It is a flowchart of the present invention. DETAILED DESCRIPTION

[0062] Example 1

[0063] like Figure 1 As shown, the intelligent access control system based on automatic identification includes at least: an identification system and an electric gate. The identification system controls the opening and closing of the electric gate, and the identification system identifies the information of the passers-by and releases the passers-by who have obtained the right of passage through the information identification.

[0064] A certain area such as a residential area or community under access control management in this system is recorded as a control area, and also includes a permission registration module and a temporary authorization module.

[0065] The permission registration module includes a registration authentication unit, a data verification unit and an authorization binding unit.

[0066] The registration and authentication unit records persons who are not authorized and prohibited from passing through the electric gate controlled by the identification system as outsiders and records the identity data of the outsiders.

[0067] After confirmation by the management staff, the registration and authentication unit will register and authenticate the outsiders who enter for the first time. The registration and authentication process is as follows:

[0068] 1) Obtain the facial information, fingerprint information, contact number and work certification information of the outsider. Work certification information includes mobile phone screenshots, certificate proof, work badge and copy, etc., which can identify the work unit and work number of the outsider.

[0069] 2) Save the work authentication information of outsiders, record the fingerprint information, name, contact number, work unit and work number of outsiders in the same data set as an information set and enter it into the identification system's verification database.

[0070] The data verification unit verifies the identity information of outsiders, and after passing the verification, they are registered as temporary entrants.

[0071] The data verification unit verifies the information set in the identification system's to-be-verified database. The verification process is as follows:

[0072] 1) Obtain the fingerprint information of the outsider and compare it with the fingerprint information in the preset dangerous person fingerprint database one by one, calculate the similarity of each comparison, extract the maximum similarity and compare it with the preset similarity threshold.

[0073] 2) When the maximum similarity is less than the similarity threshold, the work unit and work number of the outsider are obtained.

[0074] 3) A unit information database is preset to compare the work unit and work number of outsiders with the data in the unit information database.

[0075] The unit information database contains multiple work units, each work unit contains multiple staff IDs, and each staff ID is bound to a name (by dividing the entry information into different levels, the errors caused by information overlap, such as duplicate names, can be avoided as much as possible during the information verification process).

[0076] 4) When there is a matching work unit and work number in the unit information database, the name of the outsider is checked against the name corresponding to the work number in the unit information database, the outsider is recorded as a temporary entrant and the current time is recorded as the registration time.

[0077] It should be noted that the name of the work unit and the work number are public information, which are actively uploaded by the company to which the work unit belongs or obtained through online search methods. The work unit entered into the unit information database must be authenticated by the management personnel and must be a formal, compliant and registered work unit with the relevant departments.

[0078] The authorization binding unit obtains the facial information and fingerprint information of temporary entrants and enters it into the authorization library of the identification system, granting entry and exit permissions to temporary entrants.

[0079] When the temporary entrant passes through the identification system, he / she is authenticated for right of passage and the electric gate is opened to let him / her pass. Furthermore, the temporary entrant's means of transportation is identified and bound.

[0080] When temporary entrants pass through the identification system, their personal information (fingerprint information or facial information) and transportation information are verified. When both personal information and transportation information are verified correctly, entry and exit permissions are granted.

[0081] The specific process of binding transportation information is as follows:

[0082] 1) When a temporary entrant passes through the identification system for the first time, the license plate number of the temporary entrant is obtained through the automatic license plate recognition technology.

[0083] 2) At the same time, the time difference between the current time and the registration time of the temporary entry and exit personnel is calculated as the registration time difference, and a registration time difference threshold is set (the calculation formula of the registration time difference threshold t is Where L represents the distance between the temporary entry and exit personnel information registration location and the current identification system location, and v is the preset walking speed value).

[0084] 3) When the registration time difference is less than the registration time difference threshold, the license plate number is bound to the temporary entry and exit personnel.

[0085] 4) When the registration time difference is greater than or equal to the registration time difference threshold, a binding abnormality signal is generated, and the staff will check and verify the temporary entrants and their means of transportation. After the temporary entrants and their means of transportation pass the verification, the license plate number will be bound to the temporary entrants.

[0086] By limiting the time difference between the current time and the registration time of the temporary entrant, the means of transportation bound to the temporary entrant can be limited to their usual means of transportation to a certain extent.

[0087] It should be noted that in actual application, the registration of outsiders is generally carried out through machines in the guard hall or property hall, and general means of transportation cannot enter the room, which makes it impossible to register the data of both at the same time. Staff need to enter the data manually and it is difficult to verify the authenticity of the license plate, affecting the efficiency of authority registration and authentication. The authorization binding unit can more quickly and conveniently bind temporary entrants and the transportation vehicles they use, so that temporary entrants can more conveniently take the vehicle through the access control to complete their work.

[0088] The temporary authorization module grants the temporary entry and exit personnel permission when the data of the temporary entry and exit personnel and their bound transportation tools obtained by the identification system match and pass.

[0089] Furthermore, the entry and exit rights of temporary entrants are managed, and the routes and times of temporary entrants are predicted based on their destinations. When temporary entrants pass through the identification system, the passing time is recorded and verified.

[0090] The temporary authorization module includes a route prediction unit and a time verification unit. The route prediction unit predicts the route of the temporary in-and-out personnel; the time verification unit predicts the stay time of the temporary in-and-out personnel and compares it with the actual stay time of the temporary in-and-out personnel, thereby generating different signals.

[0091] The route prediction unit plans and predicts the routes of temporary in-and-out personnel when they enter the control area. The specific process is as follows:

[0092] 1) Obtain the destination data of temporary in-and-out personnel, including the building number and floor. The system is pre-set with all the building numbers and floor information in the control area to form a floor database. When passing through the identification system, temporary in-and-out personnel enter the building number and floor they need to go to to form the destination data. The destination data can contain multiple floors and multiple building numbers. The destination data entered by the temporary in-and-out personnel is compared with the data in the floor database. When all the data in the destination data can find the corresponding data in the floor database and match it, go to step 2). Otherwise, a data abnormality signal is generated.

[0093] 2) Obtain the building number data in the destination data and record it as the target building number. A plane map of the control area is preset. The plane map has the corresponding positions of all building numbers. The target building number is marked in the plane map and recorded as the middle point. The number of middle points is recorded as N.

[0094] 3) When N is equal to 1, mark all exits of the control area on the plane map, select the exit closest to the middle point as the end point, draw the shortest route through the entrance (the location where temporary entrants enter and exit personnel enter the destination data, that is, the location where temporary entrants enter and exit the control area), the middle point, and the end point and record it as the shortest path.

[0095] 4) When N is greater than 1, select the midpoint closest to the entrance for temporary entry and exit (the location where temporary entry and exit personnel enter their destination data) as the initial point, mark all exits of the control area on the plane map, extract the midpoint closest to each exit and calculate its distance to the nearest exit as the nearest distance value, extract the nearest exit corresponding to the midpoint with the smallest nearest distance value except the initial point as the end point, take the entrance as the starting point, the end point as the end point, and all the midpoints as the waypoints, and calculate the shortest path through the starting point, the end point and all the waypoints through the shortest path model algorithm.

[0096] It should be noted that the shortest path model algorithm is an existing technology, which can calculate the shortest path passing through each point when the coordinates of each point are known.

[0097] 5) Display the floor plan of the control area and the route map corresponding to the shortest path to temporary entrants and exits, control the opening of the electric gate and record the current time as the entry time. By displaying the route map corresponding to the shortest path, temporary entrants and exits can plan their routes, thereby reducing their stay time and facilitating the entry and exit management of temporary entrants and exits.

[0098] Planning the routes of temporary in-and-out personnel based on their destination data can, on the one hand, facilitate route planning for temporary in-and-out personnel and recommend suitable routes for them when they are not familiar enough with the internal roads of the community. On the other hand, it can also help predict the routes of temporary in-and-out personnel, which is helpful for management in subsequent processes.

[0099] 6) When a data abnormality signal is generated, the electric gate is closed and the access rights of temporary entrants are locked. An abnormality verification instruction is sent to the nearest staff handheld terminal (which can be a walkie-talkie, mobile phone or other mobile device). The staff verifies the temporary entrants. After the verification is passed, steps 1) to 5) are repeated.

[0100] Time verification unit verification, including:

[0101] 1) Obtain the shortest path and calculate the distance of the shortest path, which is recorded as the total distance S.

[0102] 2) Obtain the total number of floors L' corresponding to all waypoints (i.e. building numbers) and all floor data L corresponding to each waypoint i , where i is the serial number of each floor data, i=1, 2, ..., j, and j is the total number of floor data.

[0103] For example, if the input destination data is "Building 2, 4th, 7th, 13th floors", the corresponding building number is 2, and the floor data is L1=4, L2=6, L3=12. If the building with building number 2 has 18 floors, then the total number of floors L′=18.

[0104] 3) Calculate the floor impact value LD of each passing point. The calculation formula is: Calculate the sum of all floor impact values ​​and record it as the floor duration parameter T L .

[0105] 4) The total distance S and floor time parameter T L Substitute into the formula Calculation is performed to obtain the estimated duration T′, where μ1 is a preset weight coefficient.

[0106] 5) The authorized access time for temporary access personnel is limited to T', starting from the time of entry. Temporary access personnel are allowed to leave through the electric gate at the exit of the control area after being identified and authenticated by the identification system within the authorized access time. When the authorized access time is exceeded, the access rights of temporary access personnel are locked and a data abnormality signal is generated when they pass through the identification system, and an abnormality verification instruction is sent to the nearest staff handheld terminal.

[0107] It should be noted that the same building number in the input destination data may contain multiple floors, so all floor data need to be considered, while the total number of floors of each building is known data.

[0108] By predicting the routes of temporary entrants and exits, and based on the distance of their routes and the floor data of their destinations, the length of time they stay in the controlled area can be reasonably predicted, thereby achieving indirect management and supervision of their behavior, effectively preventing temporary entrants and exits from staying excessively in the controlled area. Compared with the management methods in the existing technology, this is more intelligent, and does not require management personnel to monitor at all times. Management personnel's assistance and verification is only required when abnormal situations occur, which improves the efficiency of access control management and reduces the waste of human resources.

[0109] Embodiment 2

[0110] Although the intelligent access control system based on automatic identification in Example 1 can predict the routes of temporary in and out personnel and estimate their stay time based on the predicted route, thereby managing their entry and exit, this method can only be managed based on the registration and recording of the entry and exit time, and cannot record the information during the route travel process, and still has certain defects.

[0111] In view of the above-mentioned deficiencies, this embodiment proposes further improvements, which are different from the first embodiment in that it also includes a passage verification module, which verifies the routes taken by temporary in and out personnel.

[0112] The passage verification module includes a feature recognition unit and a verification analysis unit.

[0113] The feature recognition unit captures and identifies the features of temporary entrants when they enter the controlled area.

[0114] The verification and analysis unit records and monitors the routes of temporary in and out personnel through the second high-definition camera at all building entrances in the control area, and verifies the routes of temporary in and out personnel based on the recorded data.

[0115] The feature recognition unit obtains a full-frame picture of temporary entrants through the first high-definition camera at the entrance of the control area (the full-frame picture includes the means of transportation, and the verification picture is directly obtained when the temporary entrants pass through the electric gate), and establishes a feature sequence based on the full-frame picture.

[0116] The process of establishing the feature sequence is as follows:

[0117] 1) Identify the color of the person's outline (the outline recognition technology is an existing image processing technology) in the full picture, and preset multiple color labels.

[0118] 2) Obtain the proportion of different color labels in the full-frame image and establish a proportion bar chart to obtain the contour area proportion value D of the personnel in the full-frame image (i.e., the proportion of the contour area of ​​temporary in and out personnel to the total area of ​​the full-frame image).

[0119] 3) Extract the three color labels with the highest proportion and form the first set [(A, a), (B, b), (C, c)] in order of proportion, where A, B, C represent the color labels with the first, second, and third proportions respectively, and a, b, c represent the proportion values ​​of A, B, and C respectively. The first set is combined with the contour area proportion value D to form the feature sequence [(A, a), (B, b), (C, c), D].

[0120] It should be noted that the high-definition cameras are set in positions where they can fully capture the full-frame images of people entering and leaving temporarily. The configuration parameters used by each high-definition camera are the same, thereby ensuring that the captured images do not have differences in color, aspect ratio, etc. By setting feature series, different feature series can be established for different temporary people entering and leaving, thereby facilitating distinction and identification.

[0121] The verification and analysis unit verifies the route of temporary entrants from the time they enter the control area until they leave through the identification system.

[0122] The route verification process is as follows:

[0123] 1) Record the feature sequence of temporary in-and-out personnel as the target feature sequence, obtain the full-frame image of all personnel entering the camera range through the second high-definition camera in front of each building, and establish the corresponding feature sequence as the comparison feature sequence.

[0124] 2) Compare the comparison feature sequence with the target feature sequence. When the comparison feature sequence is the same as the target feature sequence, obtain the recording time and the corresponding building number of the comparison feature sequence, so as to draw the movement route of the temporary in and out personnel according to the recording time sequence and the building number.

[0125] 3) When the moving route is compared with the predicted route map; when the two are completely consistent, a route consistency signal is generated (that is, all the building numbers passed through are the same, and the order of passing is consistent with the predicted plan); when all the building numbers corresponding to the passing points of the two are consistent but the order is inconsistent, a route change signal is generated; when the building numbers of the corresponding passing points of the two are inconsistent (that is, entering an unregistered building), a route abnormality signal is generated.

[0126] By checking the movement routes of temporary entrants, it is possible to more conveniently monitor the movement routes of temporary entrants within the control area, and when abnormal movements occur among temporary entrants, route abnormality signals are generated to facilitate verification and supervision by management personnel, thereby better ensuring safety within the control area.

Claims

1. Intelligent access control system based on automatic identification, including identification system and electric control gate, characterized by: The managed area is recorded as the control area, which also includes the permission registration module and the temporary authorization module; The permission registration module includes a registration authentication unit, a data verification unit and an authorization binding unit; The registration and authentication unit records persons who are not authorized by the identification system and are prohibited from passing through the electric gate as outsiders. After confirmation by the management personnel, the registration and authentication unit registers and authenticates outsiders who enter for the first time, and records the identity data of outsiders to form an information set; The data checking unit checks the data in the information set of the outsider, and after the verification is passed, the outsider is registered as a temporary in-and-out person, and the current time is recorded as the registration time; The authorization binding unit identifies the means of transportation of temporary entrants and in-and-out personnel within a certain period of time at the time of registration and binds the information of the temporary entrants and in-and-out personnel; The temporary authorization module grants the temporary entry and exit personnel access rights when the data of the temporary entry and exit personnel and the transportation tools bound to them obtained by the identification system are matched and passed, and manages the entry and exit rights of the temporary entry and exit personnel; The temporary authorization module includes a route prediction unit and a time verification unit; The route prediction unit plans and predicts the routes of temporary in-and-out personnel based on their destinations and map data of the control area; The time verification unit calculates the passage time required for temporary entry and exit personnel based on the predicted route, compares the estimated time with the actual stay time of the temporary entry and exit personnel, and generates different signals to control whether the identification system grants access rights.

2. The intelligent access control system based on automatic identification according to claim 1 is characterized in that: Registration and certification unit registration and certification, including: 1) Obtain facial information, fingerprint information, contact number and work certification information of outsiders; 2) Save the work authentication information of outsiders, record the fingerprint information, name, contact number, work unit and work number of outsiders in the same data set, record it as an information set, and enter it into the identification system's verification database.

3. The intelligent access control system based on automatic identification according to claim 1 is characterized in that: The data verification unit verification includes: 1) Obtain the fingerprint information of the outsider and compare it with the fingerprint information in the preset dangerous person fingerprint database one by one, and calculate the similarity of each comparison; 2) Extract the maximum similarity and compare it with the preset similarity threshold. When the maximum similarity is less than the similarity threshold, obtain the work unit and work number of the outsider; 3) A unit information database is preset. When a matching work unit and work number exist in the unit information database, the name of the outsider is checked against the name corresponding to the work number in the unit information database, and the outsider is recorded as a temporary entrant and the current time is recorded as the registration time.

4. The intelligent access control system based on automatic identification according to claim 1 is characterized in that: Authorization binding unit binding, specifically including: 1) The authorization binding unit obtains the facial information and fingerprint information of temporary entrants and enters them into the authorization library of the recognition system, granting entry and exit rights to temporary entrants; 2) When the temporary entrant passes through the identification system, he / she will be authenticated for right of passage and the electric gate will be opened to let him / her pass. When the temporary entrant passes through the identification system for the first time, the license plate number of the vehicle used by the temporary entrant will be obtained through the automatic license plate recognition technology; 3) At the same time, the time difference between the current time and the registration time of the temporary entry and exit personnel is calculated as the registration time difference, and a registration time difference threshold is set. The calculation formula of the registration time difference threshold t is Wherein, L represents the distance between the temporary entry and exit personnel information registration location and the current identification system location, and v is the preset walking speed value; 4) When the registration time difference is less than the registration time difference threshold, the license plate number is bound to the temporary entry and exit personnel; 5) When the registration time difference is greater than or equal to the registration time difference threshold, a binding abnormality signal is generated, and the staff will check and verify the temporary entry and exit personnel and their means of transportation. After the temporary entry and exit personnel and their means of transportation pass the check, the license plate number is bound to the temporary entry and exit personnel. 6) When personal information and transportation information are verified to be correct, access permission will be granted.

5. The intelligent access control system based on automatic identification according to claim 1 is characterized in that: The route prediction unit plans the predicted route, including: 1) Obtain the destination data of temporary in-and-out personnel, which includes the building number and floor; the system is preset with all the building numbers and floor information in the control area to form a floor database. When passing through the identification system, temporary in-and-out personnel enter the building number and floor they need to go to to form the destination data. The destination data entered by the temporary in-and-out personnel is compared with the data in the floor database. When all the data in the destination data can find the corresponding data in the floor database and match it, go to step 2), otherwise, generate a data abnormality signal; 2) Obtain the building number data in the destination data and record it as the target building number. A plane map of the control area is preset, and the plane map has the corresponding positions of all building numbers. The target building number is marked in the plane map and recorded as the middle point. The number of middle points is recorded as N; 3) When N is equal to 1, mark all exits of the control area on the plane map, select the exit closest to the middle point as the end point, draw the shortest route through the entrance, middle point, and end point and record it as the shortest path; 4) When N is greater than 1, select the nearest midpoint to the temporary entrance for people to enter and exit as the initial point, mark all exits of the control area in the plane map, extract the nearest midpoint to each exit and calculate its distance to the nearest exit as the nearest distance value, extract the nearest exit corresponding to the midpoint with the smallest nearest distance value except the initial point as the end point, take the entrance as the starting point, the end point as the end point, and all the midpoints as the passing points, and calculate the shortest path through the starting point, the end point and all the passing points through the shortest path model algorithm; 5) Display the plan map of the control area and the route map corresponding to the shortest path to temporary entrants and control the opening of the electric gate, and record the current time as the entry time; 6) When a data abnormality signal is generated, the electric gate is closed and the access rights of temporary entrants are locked. An abnormality verification instruction is sent to the nearest staff member's handheld terminal. The staff member verifies the temporary entrants. After verification, 1)-5) are repeated.

6. The intelligent access control system based on automatic identification according to claim 5 is characterized in that: Time verification unit verification, including: 1) Obtain the shortest path and calculate the distance of the shortest path, which is recorded as the total distance S; 2) Obtain the total number of floors L' of the building corresponding to all the waypoints and all the floor data L corresponding to each waypoint i , calculate the floor influence value LD of each passing point, Where: i is the serial number of each floor data, i = 1, 2, ..., j, j is the total number of floor data; 3) Calculate the sum of all floor impact values ​​and record it as floor duration parameter T L , the total distance S and floor time parameter T L Substitute into the formula Calculate in and get the estimated time length T′; Among them: μ1 is the preset weight coefficient; 4) The authorized access time for temporary entrants is limited to T′, starting from the moment of entry; within the authorized access time, temporary entrants are allowed to leave through the electric gate at the exit of the control area after being identified and authenticated by the identification system; when the authorized access time is exceeded, the access rights of temporary entrants are locked and a data anomaly signal is generated when they pass through the identification system, and an abnormality verification instruction is sent to the nearest staff member's handheld terminal.

7. The intelligent access control system based on automatic identification according to claim 1 is characterized in that: It also includes a passage checking module, which checks the routes taken by temporary in and out personnel; The passage verification module includes a feature recognition unit and a verification analysis unit; The feature recognition unit captures and recognizes the features of temporary entrants when they enter the control area; The verification and analysis unit records and monitors the routes of temporary in and out personnel through the second high-definition camera at all building entrances in the control area, and verifies the routes of temporary in and out personnel based on the recorded data.

8. The intelligent access control system based on automatic identification according to claim 7 is characterized in that: The feature recognition unit obtains a full-frame image of temporary entrants through the first high-definition camera at the entrance of the control area, and establishes a feature sequence based on the full-frame image.

9. The intelligent access control system based on automatic identification according to claim 8 is characterized in that: The characteristic series is established, including: 1) Identify the color of the person's outline in the full picture; 2) There are multiple color labels preset, the proportion of different color labels in the full picture is obtained and a proportion bar chart is established to obtain the contour area proportion value D of the person in the full picture; 3) Extract the three color labels with the highest proportion and form the first set [(A, a), (B, b), (C, c)] in order of proportion, where A, B, C represent the color labels with the first, second, and third proportions respectively, a, b, c represent the proportion values ​​of A, B, and C respectively, and the first set is combined with the contour area proportion value D to form the feature sequence [(A, a), (B, b), (C, c), D].

10. The intelligent access control system based on automatic identification according to claim 9 is characterized in that: The verification and analysis unit verifies the route, including: 1) Record the characteristic number series of temporary in-and-out personnel as the target characteristic number series, obtain the full-frame images of all personnel entering the camera range through the second high-definition camera in front of each building, and establish the corresponding characteristic number series as the comparison characteristic number series; 2) Compare the comparison feature sequence with the target feature sequence; when the comparison feature sequence is the same as the target feature sequence, obtain the recording time and the corresponding building number of the comparison feature sequence, so as to draw the movement route of the temporary in-and-out personnel according to the recording time sequence and the building number; 3) When the moving route is compared with the predicted route map; when the two are completely consistent, a route consistency signal is generated; when all the building numbers corresponding to the waypoints of the two are consistent but the sequence is inconsistent, a route change signal is generated; when the building numbers of the corresponding waypoints of the two are inconsistent, a route abnormality signal is generated.

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