KR101553229B1 - The access control system using real time-log data - Google Patents

Abstract

The present invention relates to an access control system using log data which can analyze access pattern information of a user using real-time event log data and can perform room management as to a specific space on the basis of the access pattern information. Specifically, the access control system of the present invention includes: more than one access control equipment which is comprised in plural spaces divided in a designated area, and allows access of a previously registered user as to a corresponding space, and generates real-time event log data according to the access of the user; a database which stores the real-time event log data transmitted from the access control equipment and information of the previously registered user; an operation software which registers or deletes the user information to give access right of the user and then stores the same in the database, and performs room management as to each space on the basis of the access pattern information by grasping the access pattern information of the user by extracting and analyzing the real-time event log data stored in the database; and a communication server for transmitting and receiving data among the access control equipment, the database and the operation software.

Description

[0001] The present invention relates to an access control system using real-time log data,

The present invention relates to an access control system for managing access to and control of access to a specific space. More specifically, the present invention relates to an access control system for managing access control of a specific space by analyzing user access pattern information using log data, The present invention relates to an access control system using real-time log data.

In recent years, many companies have established access control systems to control the access of outsiders or to control the access of insiders to places where confidentiality is required, and also restrict access to employees selectively It is strengthening access control measures.

In this access control system, the passengers have to bring in the access card or enter the preset password in order to authenticate the passengers. In recent years, security has been strengthened by using biometrics including fingerprint recognition or fingerprint recognition.

For example, in the case of an access control system using fingerprint recognition, when a fingerprint of a visitor is input, the fingerprint information is read and the fingerprint information is converted into minutia data. The fingerprint information data thus converted and the previously registered fingerprint information data are compared and analyzed, And the door is unlocked only to the authorized person who has been authenticated.

However, in the case of the conventional access control system, the reader information generated at the entrance and exit is used only as information for controlling the door, and in the case of a fire detection sensor or a forced door sensor connected to the system and a user authentication error Only alarms are generated.

As described above, the conventional access control system has a problem that it is vulnerable to additional functions other than access control as an output generation concept for intuitive input rather than processing based on application technology or data analysis.

Korean Patent No. 0917771

Disclosure of Invention Technical Problem [8] The present invention has been made in order to solve the above problems of the related art, and it is an object of the present invention to provide a method and system for analyzing access pattern information of a user using real- And an access control system using real-time log data that can be performed.

In order to accomplish the above object, the access control system using real-time log data according to the present invention is provided in each of a plurality of divided spaces in a designated area, and permits access of a pre-registered user to the corresponding space, One or more access control devices for generating real-time event log data; A database storing real-time event log data transmitted from the access control device and information of pre-registered users; The user information is registered or deleted so as to grant the access right of the user and stored in the database, and the real-time event log data stored in the database is extracted and analyzed to grasp the user's access pattern information, Operating software that performs redundant management of each space; And a communication server for transmitting and receiving data between the access control device and the database and operating software.

As an example, the log data may include information on a corresponding access control device, user specific information, time information, and leader information according to a user's access.

As an example, the operating software may include a communication module for providing a communication network with the communication server; A data analyzer for analyzing log data received through the communication module and analyzing access pattern information including the access count for each access control device; And an integrated controller for receiving input pattern information analyzed by the data analyzer and comparing the analyzed pattern data with the set reference data to generate a control signal for executing a command set by the manager for the space.

In one example, the integrated control unit analyzes the access pattern information output from the data analysis unit, and when it detects that the access of the specific access control device whose access is restricted during the first period is relatively increased, the access control device And an alarm generating module for outputting a control signal for informing an alarm.

As an example, the integrated control unit may analyze the access pattern information output from the data analysis unit, and if the long-term access of the specific access control device is not detected to the user during the first period of time, And an access restriction module for outputting pattern information and a control signal for limiting entry and exit.

As one example, the integrated control unit may determine whether the user enters or exits a specific space through the entrance / exit pattern information output from the data analysis unit, And a control module.

As an example, the data analyzing unit may correct the access pattern information in real time through log data accumulated in the database by the communication server.

As one example, the access control device stores setting information transmitted from the operating software, detects a communication failure with the operating software, and generates log data generated during the communication failure period based on the stored setting information And the log data accumulated at the time of communication resumption can be transmitted to the operating software.

As one example, the operating software sets an access permission period for the user and transfers setting information to the access control device. The access control device stores setting information transmitted from the operating software, It is possible to selectively control the access of the user.

Therefore, the access control system using the real-time log data according to the present invention analyzes the access pattern information of the user by using the real-time event log data generated at the entrance and exit, and based on the access pattern information, There is an advantage in that redundant management such as generation, access restriction, and illumination control can be performed.

1 is a block diagram showing a configuration of an access control system using real-time log data of the present invention.
2 is a block diagram showing a configuration of an access control device as one embodiment of the present invention.
3 is a block diagram showing the configuration of operating software as one configuration of the present invention;
4 is a block diagram showing the configuration of an integrated control unit which is a constitution of the present invention;
5 is a block diagram illustrating an example of operation of an alarm generation module according to an embodiment of the present invention;
6 is a block diagram illustrating an operation example of an access restriction module according to an embodiment of the present invention;
7 is a block diagram illustrating a voltage sensing module according to an embodiment of the present invention.
8A to 8C are views showing the voltage detection sensor of Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of an access control system using log data according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the access control system is provided in each of a plurality of divided spaces 100 within a designated area. The access control system permits access of the registered user to the space 100, (20) for storing real-time event log data and pre-registered user information transmitted from the access control equipment (10), and a database And stores the user information in the database 20, extracts and analyzes the real-time event log data stored in the database 20 to grasp the user's access pattern information, An operation software (40) for performing redundancy management for each space (100) based on pattern information, And a communication server 30 for transmitting and receiving data between the equipment 10 and the database 20 and the operating software 40.

The access control device 10 authenticates a user who requests access to the access control device in a configuration for permitting or limiting the access of the user, and judges whether or not the access is permitted according to the result. The access control device 10 generates and stores real-time event log data according to user access.

2, the access control device 10 includes a door lock device 110, a memory 120, a recognition means 130, a comparison analysis module 140, a communication module 150, (160).

The door lock device 110 is driven by receiving an external control signal through a conventional locking device to physically lock or open a door provided in each space 100.

The memory 120 stores user information of the database 20 transmitted from the communication server 30. The user information may be user information registered by the operation software 40 described below.

The recognition means 130 identifies the user as a registered user by inputting user information requesting entrance and exit. At this time, the recognition of the user information may be performed by using a number key, an access card using RFID or the like, May be applicable.

The comparison and analysis module 140 compares the information of the requesting user input through the recognition unit 130 with the previously registered or previously authorized or temporarily registered previously registered user information stored in the memory 120 Thereby determining whether the user is an authenticated user or an unauthenticated user, and finally controlling the door lock device 110 by outputting a control signal for allowing or limiting entrance and exit.

The log data generation module 160 outputs real-time event log data generated by the access control equipment 10 including the recognition unit 130 and the like to the memory 120 according to the user's access.

Here, the log data may include information on the access control device 10, user-specific information, time information, reader information, etc. according to the user's access.

The real-time event log data stored in the memory 120 is transmitted to the operation software 40 through the communication server 30 so as to be used as data for analyzing access pattern information.

The communication module 150 performs data communication with the communication server 30 and transmits management data including the abnormality of the door lock device 110 as well as log data stored in the memory 120 to the communication server 30, (30).

The communication module 150 may be configured to provide a wired or wireless communication network. For example, the communication module 150 may include a serial module (UART) and a LAN port for connecting wired lines such as a dedicated line and an xDSL. And may include a serial module for wireless connection.

On the other hand, the communication server 30 is for linking the access control equipment 10, the database 20, and the operation software 40, and includes software for communication so that mutual data can be transmitted and received stably do.

The communication server 30 may include a gateway device for connecting different kinds of communication devices to each other in performing data communication. The communication server 30 may refer to the type and network information of each access control device 10, Select communication equipment and lines.

The communication server 30 also has a function of processing the real-time event log data stored in the access control device 10 and storing the real-time event log data in the database 20 and transmitting the real-time event log data to the operation software 40 .

The database 20 stores real-time event log data and pre-registered user information transmitted from the access control equipment 10 and the database 20 is shared with the communication server 30 and the operating software 40. [ Lt; / RTI >

On the other hand, the operation software 40 registers or deletes the user so that the entrance / exit of the access control equipment 10 is permitted or restricted. The operation software 40 receives the real-time event log data transmitted from the communication server 30 and displays the real-time event log data in real time, thereby allowing the administrator to monitor the real-time event log data.

The operation software 40 performs an access control report and an output control function and stores the information related to the registration and deletion of the user as well as the setting information according to the setting of the access control equipment 10 in the database 20 The access control device 10 transmits the access control device 10 through the communication server 30 as described above so that the memory 120 of the access control device 10 can be updated.

The operation software 40 directly outputs a command signal for controlling the access control equipment 10 without a user authentication procedure and the command signal is transmitted to the access control equipment 10 through the communication server 30 So that the access control device 10 can be controlled.

In addition, the operation software 40 can set an access permission period for the user. For example, the operation software 40 can set a user card expiration period in units of years, months, and days .

The operation software 40 may transmit the set access permission period information, that is, the setting information, to the access control equipment 10.

The access control device 10 stores the setting information transmitted from the operation software 40 in the memory 120 and selectively compares the access information with the setting information and the user information at the time of access, It can be controlled to be disallowed.

Particularly, in the present invention, the operation software 40 analyzes the real-time event log data transmitted from the communication server 30 to calculate access pattern information including the access count information in each access control device 10, So that redundancy management for each space 100 based on access pattern information can be implemented.

That is, the operation software 40 analyzes access control device information, user information, time information, log information, and the like included in the log data to identify each access control device 10, 10) can be confirmed.

3, the operation software 40 may include a communication module 400, a data analysis unit 410, and an integrated control unit 420. [

The communication module 400 receives data transmitted from the communication server 30 and transmits a control signal processed by the operation software 40. The communication module 400 is also connected to the communication module of the access control device 10 150 and a serial module (UART) for connecting a wired line such as xDSL and a LAN port so as to provide a wired / wireless communication network, and may include a wireless module such as a WIFI or GPRS modem have.

The data analyzer 410 analyzes the log data received through the communication module 400 and analyzes the access pattern information including the access count for each access control device 10. As described above, the data analyzing unit 410 analyzes access pattern information, and provides access pattern information analyzed by the access control equipment 10.

Here, the data analyzing unit 410 corrects the access pattern information in real time through one of cumulative log data selected from a temporal unit, a day unit, or a week unit in addition to the temporary log data transmitted through the communication server 30 It is preferable to improve the reliability of the access pattern information.

The integrated control unit 420 receives the access pattern information analyzed by the data analysis unit 410 and compares the access pattern information with the set reference data to generate a control signal so that the command set by the manager is executed on the space 100 So that redundant management of the plurality of spaces 100 can be performed.

For example, the integrated control unit 420 analyzes the access pattern information output from the data analysis unit 410 and detects that access to the specific access control equipment 10 whose access is limited during the first period is relatively increased And an alarm generation module 421 for outputting access pattern information for the access control device 10 and a control signal for informing an alarm.

This corresponds to the access control equipment 10 having almost no access to the space 100 requiring security. When the access to the space 100 occurs frequently than usual, it is determined that the access is abnormal and the administrator is notified So that follow-up measures can be taken quickly.

As shown in FIG. 5, the alarm generating module 421 analyzes the entrance / exit pattern information to determine the number of accesses to / from the access control device 10 during the first period. The control unit compares the reference data determined as the abnormal access state and outputs a control signal indicating the alarm when the access count according to the access pattern information analysis result exceeds the reference data as an abnormal access state. The alarm-related control signal thus outputted is reported to the manager through an alarm means and the like so that the manager can recognize the alarm-related control signal.

Here, the first period may be any one selected from the group consisting of a time unit, a day unit, and a week unit.

As another example, the integrated control unit 420 may analyze the access pattern information output from the data analysis unit 410, and if the access control device 10 is not detected by the user during the first period, And an access restriction module 422 for outputting access pattern information on the control equipment 10 and a control signal for limiting access.

The control signal of the access restriction module 422 may be applied in the form of a user card expiration in the case of a card access system.

The access restriction module 422 restricts access to and from the access control device 10 in which access does not occur. The access restriction module 422 also analyzes the access pattern information of the data analysis unit 410 like the alarm generation module 421 described above to check the access number of the specific access control device 10 during the first period .

As shown in FIG. 6, the reference data at this time may be "0" in which access does not occur, and it is also possible to compare the access count information obtained by the access restriction module 422 with the reference data, It is judged that there is an abnormal access situation in which access does not occur. In this case, the access restriction module 422 determines that there is no access of the access control device 10 for a long time, and outputs a control signal for limiting access to the access control device 10, So that the door lock device 110 of the control device 10 can be controlled.

On the other hand, if the access count information is larger than the reference data, the access control device 10 is judged as a normal access state.

Here, the first period may be any one selected from the group consisting of a time unit, a day unit, and a week unit.

In addition, the integrated control unit 420 includes a lighting control module 423 that determines whether the user enters the room through the entrance / exit pattern information, and selectively controls the lighting device according to each situation.

The lighting control module 423 analyzes the access pattern information output from the data analysis unit 410 to determine whether the user enters the specific space 100 and leaves the space 100, And outputs a control signal for turning on or off the lighting device for the space 100.

For this, the lighting control module 423 is electrically connected to lighting devices provided in the respective spaces 100, and one or more switching devices for independently turning on / off each lighting device in response to an output control signal .

As described above, the operation software 40 judges various entrance and exit situations through the access pattern information analyzed by itself, and performs automatic control so as to be suitable for the security, thereby enhancing security for each space 100 and providing convenience to the user .

In the present invention, the access control device 10 can be configured to be smoothly operated without the control of the operation software 40 even in an emergency situation such as a communication failure between the devices.

In the case of the access control device 10, access control setting information for each space 100 can be received from the operation software 40 and stored in the memory 120.

At this time, the setting information may include access right information of the accessing person, and the access control equipment 10 can selectively restrict access and permit access based on the setting information.

The setting information can also be modified in the operation software 40 such as new registration and deletion.

Accordingly, the access control device 10 does not receive new or changed setting information from the operation software 40, and can maintain the driving state according to existing pre-stored setting information.

The access control device 10 may include a sensing unit (not shown) for sensing a communication failure with the operation software 40. The sensing unit may sense the communication failure from the time of detecting the communication failure to the time of restarting communication The generated log data can be accumulated.

The accumulated log data may be temporarily stored in the memory 120 and may be collectively transmitted to the operation software 40 when the access control device 10 recognizes the resumption time of the communication. Accordingly, the access control device 10 can be smoothly operated even in the case of a communication failure. In the operation software 40, not only the status of the access control device 10 during the communication failure period, By receiving the log data, it is possible to more accurately calculate the access pattern information for the redundant management.

Meanwhile, the operating software 40 may be configured to further include an administrator terminal (not shown).

The administrator terminal monitors the information analyzed and controlled by the operation software 40 in real time, and inputs or sets an administrator authority command.

Such an administrator terminal can be configured as a PC type or mobile type terminal equipped with an input means and an output means, and outputs information according to a request of information provided by an administrator.

On the other hand, it is preferable that the access control device 10 is constructed so as to provide electrical stability together with mechanical stability so that an electrical failure such as a communication failure is prevented.

 In general, the housing 10 itself is made of synthetic resin for insulation, but it may include a metallic housing according to its internal circuit structure, and may be connected to an electric power source such as a self- An unstable voltage or current may be supplied.

For this reason, the access control device 10 is required to protect the access control device 10 from internal or external electrical influences and to protect the access control device 10 from the electrical effects. The provision of the protection means prevents communication failure of the access control device 10, It is possible to prevent shortening.

According to an embodiment of the present invention, when the access control device 10 is an electric facility including a metallic housing, a portion of the access control device 10, which is attached to the outer surface of each metallic housing and is generated by internal partial discharge inside the metallic housing, A voltage sensing module 60 for sensing a surface voltage according to a surface current generated in the metallic housing by a discharge pulse and transmitting the sensed surface voltage may be configured.

The voltage analysis unit 50 is configured to derive the stability rating of the electric facility, that is, the access control equipment 10, using the voltage transmitted from the voltage sensing module 60, and transmit the stability rating to the application software 40 do.

Specifically, in an electric facility such as the access control equipment 10, local insulation breakdown may occur in the insulation of a device such as a switchgear or a breaker. Such a local insulation breakdown causes an internal discharge phenomenon.

The internal discharge causes deterioration of the apparatus, and such deterioration can determine the durability (remaining life) of the apparatus (facility), but it is not easy to detect it. These internal discharges are mainly discharged through gaps or joints in the metallic housing. When the surface voltage across the metallic housing occurs between the grounds, the ground voltage changes instantly and temporarily. The time it takes is very instantaneous.

Thus, in the present embodiment, the voltage detection module 60 detects and detects the surface voltage applied to the metallic housing to derive the stability rating of the access control device 10. [

The voltage sensing module 60 is attached to the outer surface of the metallic housing of the access control device 10. The voltage sensing module 60 may include an internal partial discharge phenomenon generated by locally breaking the insulation provided in the transformer, As shown in FIG.

That is, when the surface current is generated in the metallic housing by the partial discharge pulse rather than directly detecting the discharge electromagnetic wave, the surface voltage is caught by the surface current. The surface voltage is sensed to recognize the internal partial discharge.

The voltage detection module 60 includes a voltage detection sensor 61 for accumulating and sensing a surface voltage as shown in FIG. 7, and a voltage detector 60 for detecting a surface voltage sensed by the voltage detection sensor 61, And a transmitting unit 62 for transmitting the data to the mobile station.

The voltage analyzer 50 is configured to detect an internal partial discharge pulse using the surface voltage sensed by the voltage sensing module 60. The voltage analyzer 50 determines whether the discharge is caused by the internal partial discharge pulse or the like, The degree of deterioration of the electric facility is determined according to the discharge status and the type of discharge, and the stability level of the electric facility can be determined. By transmitting the stability level information to the operation software 40, (30) displays related information or notifies the administrator, and maintains the corresponding access control device (10) which has a problem or a future problem.

The method of determining the discharge status and the discharge type in the electric facility using the surface voltage in this way can be performed by various well-known techniques, so that the description thereof is omitted.

As a result, according to the present invention, it is possible to grasp the stability level of the electric facility, that is, the access control equipment 10, and to grasp the stability of the access control equipment 10 through the stability rating of the electric facility, It is possible to protect the access control apparatus 10 from an electrical influence that may be generated inside or outside of the apparatus.

In the present invention, an embodiment of the voltage detecting sensor 61 is shown in FIGS. 8A to 8C. The voltage detecting sensor 61 of this embodiment may be configured to include the detecting electrode 611, the ground electrode 612, the dielectric 613, and the BNC connecting terminal 614. [

The detection electrode 611 may be formed of a circular copper plate, and the ground electrode 612 may be formed of a circular copper plate.

The dielectric 613 is interposed between the detecting electrode 611 and the ground electrode 612 and may be made of epoxy resin. That is, the detecting electrode 611 and the ground electrode 612 are bonded to both ends of the dielectric 613.

The BNC connection terminal 614 may be configured to be coupled to the detection electrode 611 protruding through the dielectric 613 and the ground electrode 612 from the center of the detection electrode 611. The detection signal of the voltage detection sensor 61 is detected through the BNC connection terminal 614. [

The surface voltage detected by the voltage detection sensor 61 is transmitted to the voltage analysis unit 50 by the transmission unit 62.

An electric field concentration mitigation unit 615 is disposed at the edges of the detection electrode 611 and the ground electrode 612. The electric field concentration mitigation unit 615 is provided between the detection electrode 611 and the ground electrode 612, To control the phenomenon that the electric field is concentrated on the edge and the electric field is distorted. That is, to derive an accurate surface voltage value.

Here, the electric field concentration relaxation part 615 includes 5 to 10 parts by weight of antimony oxide, 5 to 10 parts by weight of aluminum powder, 3 to 5 parts by weight of polybutadiene, and 0.5 to 2 parts by weight of palladium, based on 100 parts by weight of the epoxy resin Feature.

The antimony oxide is added to the epoxy resin as a main component so as to function as a flame retardant.

The aluminum powder may cause microcracks when the subject epoxy resin shrinks with decreasing temperature. Such microcracks can function as an electric field concentration point and function to control the temperature shrinkage of the epoxy resin, In particular, the heat dissipation function is imparted by the material of the aluminum powder.

That is, when the electric field concentration relaxation unit 615 is exposed to heat, the shape of the electric field concentration relaxation unit 615 is distorted and a point at which electric field concentration occurs may be generated. The heat accumulated in the electric field concentration relaxation unit 615, So as to prevent the distortion of the shape.

Further, polybutadiene and palladium are further added to control the surface voids that can be generated in the electric field concentration mitigation portion 615. When the electric field concentration relaxation part 615 is exposed to heat, the epoxy resin reacts with other composition or the like to generate hydrogen gas. When the hydrogen employment ability is supersaturated, hydrogen is released to the outside during the temperature lowering process, It is possible to cause fine surface voids to be generated in the fine holes 615, and such fine surface voids can act as a point of electric field concentration.

In the present invention, polybutadiene is added so that the polybutadiene has a double bond that is opened in the presence of the palladium, which facilitates the fixation of hydrogen to the open double bond. Therefore, in the present invention, polybutadiene and palladium are mixed with the composition of the electric field concentration relaxation portion 615 to absorb hydrogen generated in the paste to control the formation of the surface voids.

While the present invention has been described with reference to the particular embodiments and drawings, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Various modifications and changes may be made.

10: Access control equipment 20: Database
30: communication server 40: operation software
50: voltage analysis unit 60: voltage detection module
61: voltage detection sensor 61:
400: communication module 410: data analysis unit
420: integrated controller 421: alarm generating module
422: access restriction module 423: lighting control module

Claims (13)

One or more access control devices respectively provided in the plurality of divided spaces in the designated area, allowing the access of the pre-registered user to the corresponding space, and generating the real-time event log data according to the entrance and exit of the user;
A database storing real-time event log data transmitted from the access control device and information of pre-registered users;
The user information is registered or deleted so as to grant the access right of the user and stored in the database, and the real-time event log data stored in the database is extracted and analyzed to grasp the user's access pattern information, Operating software that performs redundant management of each space; And
And a communication server for transmitting and receiving data between the access control device and the database and the operating software,
If the access control equipment is an electrical installation including a metallic housing,
A voltage sensing module attached to an outer surface of each metallic housing and sensing a surface voltage according to a surface current generated in the metallic housing by a partial discharge pulse generated by an internal partial discharge inside the metallic housing and transmitting the sensed surface voltage; And
And a voltage analyzer for deriving a stability class of the access control equipment using the voltage transmitted from the voltage sensing module and transmitting the stability class to the operating software.
The method according to claim 1,
Wherein the log data includes information on a corresponding access control device, user specific information, time information, and leader information according to a user's access.
3. The method of claim 2,
The operating software,
A communication module for providing the communication server and a wired and wireless communication network;
A data analyzer for analyzing log data received through the communication module and analyzing access pattern information including the access count for each access control device; And
And an integration controller for receiving the access pattern information analyzed by the data analyzer and comparing the analyzed access pattern information with the set reference data to generate a control signal for executing an instruction set by the manager on the space. Access control system using data.
The method of claim 3,
The integrated control unit,
When the control unit detects that the entrance and exit of a specific access control device having a limited access during the first period of time is relatively increased by analyzing the access pattern information output from the data analysis unit, And an alarm generation module for outputting a signal to the access control module.
The method of claim 3,
The integrated control unit,
If the entrance and exit of the specific access control device is not detected for the user during the first period of time which is set by analyzing the access pattern information output from the data analyzing section, the access pattern information for the access control device and the control signal for limiting access are output And an access restriction module for accessing the real-time log data.
The method of claim 3,
The integrated control unit,
And a lighting control module for judging that the user enters or exits from a specific space through the entrance / exit pattern information output from the data analyzing unit and selectively controlling an illumination device for the corresponding space based on the information. Access control system using log data.
The method of claim 3,
The data analysis unit may include:
And the access pattern information is corrected in real time through the log data accumulated in the database by the communication server.
The method according to claim 1,
The access control device includes:
Storing configuration information transmitted from the operating software, detecting a communication failure with the operating software, accumulating log data generated during a communication failure period based on pre-stored configuration information, And transmits the data to the operating software.
The method according to claim 1,
The operation software sets an access permission period for the user and transmits setting information to the access control device,
Wherein the access control device stores setting information transmitted from the operating software and selectively controls access to the user based on the setting information.
delete The method according to claim 1,
The voltage sensing module includes:
A voltage detecting sensor for accumulating and sensing the surface voltage; and a transmitter for transmitting the surface voltage sensed by the voltage detecting sensor to the voltage analyzer.
12. The method of claim 11,
The voltage detection sensor includes:
A detection electrode formed of a copper plate, a ground electrode formed of a copper plate, a dielectric inserted between the detection electrode and the ground electrode, and a detection electrode protrusion protruding from the center of the detection electrode through the dielectric and the ground electrode And a BNC connection terminal to which the real-time log data is input.
13. The method of claim 12,
An electric field concentration mitigation section is formed at the edge of the detection electrode and the ground electrode,
Wherein the electric field concentration relaxation part comprises 5 to 10 parts by weight of antimony oxide, 5 to 10 parts by weight of aluminum powder, 3 to 5 parts by weight of polybutadiene and 0.5 to 2 parts by weight of palladium, based on 100 parts by weight of the epoxy resin. Access control system using log data.

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