KR20030056886A - Entrance Control System using a Portable Contactless Recording Medium - Google Patents

Abstract

PURPOSE: A system for controlling an entrance using a portable non-contact type recording medium is provided to control entrance status normally even if the recording medium normally issued is lost or robbed. CONSTITUTION: A sensor(104) detects that a user passes the entrance. A reader(106) reads, deletes, or records the information recorded on the recording medium held by the user. An entrance controller(108) judges the permission of the entrance and controls the entrance based on a detection signal from the sensor(104) and the information read by the reader(106). A database(110) is used for storing and operating an intrinsic code and the related information to permit the entrance by linking with the entrance controller(108). An alarm tool(118) indicates the entrance permission to a manager in case that the entrance is permitted or not permitted by the entrance controller(108).

Description

Access Control System using a Portable Contactless Recording Medium

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an access notification system using a portable recording medium, and more particularly, to an access control system for controlling access of an accessor using a contactless portable recording medium.

As a conventional access control system, a wide variety of things are known, from inputting a password to recognizing a part of a human body. Among those related to the access control system of the present invention, a system using a non-contact recording medium that does not require physical contact with the reader is mentioned.

First, a non-contact recording medium will be described. As representative examples of these, radio frequency identification (RF ID) cards using radio frequencies are already known. 1 is a diagram conceptually showing the internal structure of an RF ID card as an example of such a conventional contactless recording medium. As shown in the drawing, the conventional RF ID card 10 forms an antenna 12 having a predetermined shape on a card body 11 made of a synthetic resin or the like by using a copper thin film or an aluminum thin film. After bonding to the card body 11, the antenna 12 and the memory chip 13 are electrically connected.

Information necessary for use is recorded in the memory chip 13 of the RF ID card 10. When reading the information recorded in the memory chip 13, a radio wave of a specific frequency is emitted through the antenna of the reader, and if the frequency of the radio wave matches the resonance frequency of the antenna 12 of the RF ID card 10 and the internal circuit, The information recorded in the memory chip 13 is read out. Using a similar method, it is also possible to update by erasing or rewriting information written to the memory chip 13.

Unlike other contact recording media, the RF ID card 10 does not require time for the user to insert or contact the card in the reader, and thus there is no physical contact between the two, so that there is no damage due to friction, etc. It is characterized by low impact. In addition, since the user does not need to bring the card 10 into contact with the reader, it is also easy to store in a bag, a wallet, or the like, and is convenient for carrying by other methods. In addition, although the card-shaped recording medium is illustrated in the example shown in FIG. 1, the RF ID type contactless recording medium may be formed in a coin shape, or may be formed in a band shape that is easily wound around a wrist and carried. It may be.

Details of the technology related to such an RF ID contactless recording medium are well known and thus will be omitted.

Next, referring to FIG. 2, FIG. 2 is a block diagram for explaining the concept of a conventional access management system using such a contactless recording medium. First, an antenna ANT for transmitting and receiving radio frequency (RF) signals is connected to the card reader. The antenna transmits an RF signal generated from the card reader to the card, or receives and transmits an RF signal generated from the card to the card reader. The RF signal generated by the card is a signal in which the unique symbol assigned to the card is modulated. The card reader recognizes the unique symbols of the card by receiving and decoding the RF signal generated from the card. The card reader reads the unique symbol of the received card to determine whether the door is opened or closed. The actual door opening and closing is made by the door driving unit. The door driver opens or closes the door according to a control signal generated from the card reader.

However, in the conventional access management system as described above, there is a problem that it is impossible to control the person who uses the RF ID card if it is lost or stolen.

In addition, there is a problem in that a new card can be issued to an original user who is lost or stolen because the card cannot be recovered by simply deleting a unique symbol of the issued RF ID card.

The present invention has been made to solve the above problems, and an object of the present invention, in the access control system using a contactless portable recording medium, the access can be normally controlled even if the normally issued recording medium is lost or stolen To provide a control system.

The present invention has been made to solve the above problems, an object of the present invention, in the access control system using a non-contact portable recording medium, access that can recover even if the normally issued recording medium is lost or stolen To provide a control system.

1 conceptually illustrates the structure of a conventional wireless identification card.

2 conceptually illustrates an example of a conventional access control system;

3 is a block diagram conceptually illustrating an embodiment of an access control system according to the present invention;

4 is a block diagram conceptually illustrating an access control unit of the access control system of FIG.

5 is a flow chart showing the operation of the access control system according to an embodiment of the present invention.

* Explanation of symbols in the main parts of the drawings

102: portable recording medium 104: sensor

106: reader 108: access controller

110: database 112: driver

114: green warning light 116: red warning light

118: Alarm

In order to achieve the above object, the present invention, an access control system for controlling the entrance of the person carrying a portable non-contact recording medium, comprising: a sensor for detecting whether or not the person passes through a predetermined entrance; A reader for reading the information recorded on the recording medium possessed by the visitor, erasing the information recorded thereon, or recording new information therein; An entrance controller for determining whether to permit the entrance and exit of the person and controlling the entry based on the detection signal from the sensor and the information read by the reader; A database interlocked with the access controller and used to store and operate a unique symbol and information related thereto for allowing access; And a driver for driving an alarm means for instructing an administrator whether or not to allow the entry when the entry is permitted or not allowed by the entry controller.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, referring to FIG. 3, FIG. 3 is a block diagram conceptually illustrating an embodiment of an access control system to which the present invention is applied. The access control system 100 according to the present invention is recorded in the recording medium 102 possessed by the accessor when an accessor carrying a portable non-contact recording medium (hereinafter, simply referred to as a "recording medium") 102 passes through a predetermined passage. The information is read, and it is determined based on the read information whether to permit passage of the person.

As shown in FIG. 3, the access control system 100 of the present invention includes a sensor 104 for detecting whether an access person passes through a predetermined entrance. The sensor 104 may be able to detect the access of the person in a physical state not in contact with the person. Since the sensor 104 can be easily implemented by the known infrared sensor, the details thereof will be omitted.

The access control system 100 is connected to a reader 106 that reads information recorded on the recording medium 102 possessed by the visitor, erases information recorded therein, or records new information therein. Since the recording medium 102 and the reader 106 can be easily implemented using known technical ideas, details thereof will be omitted.

The access control system 100 further includes an access controller 108 for determining whether to permit the access of the access person and controlling the access based on the signal sensed by the sensor 104 and the information read by the reader 106. do. Details of the access controller 108 will be described later with reference to FIG. 4.

The access control system 100 further includes a database 110 interlocked with the access controller 108 and used to store and operate a unique symbol for allowing access and information related thereto. The unique symbol means an identification symbol uniquely assigned to each recording medium 102 to uniquely identify each of the recording media. The unique symbol of each recording medium 102 is preferably recorded in the database 110 by an administrator whenever it is produced.

In addition, as information operated by the database 110, information related to the unique symbol means that a lost or stolen person who has normally received and possessed the recording medium 102 is lost or stolen. Means information registered about theft. When the loss or theft has occurred, each person is notified to the administrator of the loss or theft to register it. The registration of the information relating to the unique symbol can be easily performed by previously storing information on the unique symbol of the recording medium 102 and its normal holder in the database 110 in advance.

Since the configuration of the access control system 100 for operating the database 110 can be easily implemented using a technique known in the related art, a detailed description thereof will be omitted except where necessary.

The access control system 100 may be configured to drive an alarm means such as a warning light 114 or 116 or an alarm 118 to instruct an administrator whether or not to allow the entry when the entry is permitted or not allowed by the entry controller 108. It further includes a driver 112. For example, when the driver 112 is allowed to enter under the control of the access controller 108, the driver 112 notifies the manager that the person allowed to enter is passing by driving the green beacon 114. On the contrary, when a person who is not allowed access is passing through, for example, the access controller 108 causes the driver 112 to drive both the red warning lamp 116 and the alarm 118 to confirm whether the manager is a lost or stolen recording medium. Take necessary action.

Next, an embodiment of an access controller included in the access control system according to the present invention will be described in detail with reference to FIG. 4. 4 is a block diagram conceptually illustrating a structure of an access controller 108 according to an embodiment of the present invention.

As shown, the access controller 108 includes a sensor signal processing unit 108.2 that generates a control signal for controlling whether to perform an access control operation in response to an output signal from the sensor 104. For example, the sensor 104 may generate an output that is logic low when no person trying to pass through the entrance is detected, and may generate an output that is logic high when the person is detected. In this case, the sensor signal processing unit 108.2 controls not to supply power to the remaining components while the output of the logic low is input from the sensor 104, and the entrance control when the output of the logic high is input from the sensor 104. By generating a trigger signal to perform the operation, the overall power consumption can be reduced.

The access controller 108 determines whether there is a valid RF signal emitted from the recording medium, and if there is a valid RF signal, read information analysis unit 108.4 which analyzes the information read by the reader 106 and extracts digital information. It further includes. The information extracted by the read information analysis unit 108.4 is preferably a unique symbol of each recording medium 102.

The access controller 108 further includes a unique symbol operating unit 108.6 which inquires from the database 110 of the unique symbol extracted by the reader 106 and determines whether or not it is normally registered. According to another embodiment of the present invention, when the unique symbol operating unit 108.6 is newly issued, the newly issued recording medium 102 reads the newly issued recording medium 102 into the reader 106, and by the read information analysis unit 108.4. The apparatus may further include a new unique symbol registration mode that registers the extracted unique symbol of the newly issued recording medium 102 in the database 110.

The access controller 108 determines whether or not the unique symbol related information is registered in the database 110 with respect to the unique symbol registered in the database 110 by the unique symbol operating unit 108.6, indicating that the recording medium 102 is lost or stolen. The related information operating unit 108.8. Only when it is determined by the related information operating unit 108.8 that the related information has not been registered, access of the person carrying the currently read recording medium 102 is allowed.

The driver 112 controls which alarm device is to be driven, respectively, according to a case where an entry or exit of an occupant carrying the recording medium 102 currently read by the related information operating unit 108.8 is permitted or disallowed.

The access controller 108 further includes a bus 108.16 through which internal components can transmit and receive data to configure an internal communication scheme.

Furthermore, the access controller 108 may be implemented by a general personal computer. In this case, in addition to the above components, the access controller 108 may further include components such as various hardware 108.12 and software 108.14, such as an operating system, required to operate the personal computer. It may include.

Alternatively, when the access controller 108 is implemented as separate hardware having the above-described components individually, in addition to the above-described components of the present invention, a known hardware such as a power supply unit and the like to perform the operation and Naturally, it may include software. Details of these known components are already well known in the art and thus will be omitted.

Further, the access controller 108 may be implemented by programming a microprocessor whose hardware configuration is well known to include the above units. In this case, the respective units described as included in the access controller 108 of the present invention are implemented as program code units in the microprocessor. Details of the hardware configuration of the microprocessor or its programming tasks are already well known to those skilled in the art, and thus will be omitted.

Next, with reference to Figure 5 will be described in detail with respect to an embodiment of the operation of the access control system of the present invention configured as described above. 5 is a flowchart showing the operation of the access control system according to an embodiment of the present invention.

First, when the operation is started in step 500, the sensor 104 monitors whether there is a person who wants to enter or exit. When an accessor is detected by the sensor 104 (step 502), the reader 106 emits RF radio waves to the recording medium 102, and the access controller 108 determines whether there is an RF signal emitted from the recording medium 102 ( Step 504). At this time, if it is determined that no valid RF signal exists, the red beacon and the alarm among the alarm devices are operated in order to disallow entry and exit of the person (step 514).

Next, if it is determined that a valid RF signal exists, the reader 106 reads the information recorded on the recording medium 102 (step 506). Next, the access controller 108 analyzes the read information to extract the unique symbol of the recording medium 102 (step 508).

Next, the access controller 108 performs an authentication procedure (step 510) for determining whether to allow an entrance or exit of the person, and the authentication procedure includes the following steps. That is, it is first checked whether the extracted unique symbol is normally registered in the database 110 (step 510.2). If it is not confirmed as normally registered, the authentication is judged not to allow access, and the authentication fails (step 510.8) and the alarm devices (red beacon 116 and alarm 118) which do not allow access (step 514) are activated.

If it is confirmed that it is normally registered, it is checked whether lost or stolen facts are registered as information related to the unique symbol (step 510.4). If a lost or stolen fact is registered, then the authentication also fails (step 510.8) and activates the alarm devices (red beacon 116 and alarm 118) which are not allowed (step 514).

If the lost or stolen fact is not registered, authentication succeeds (step 510.6) and allows passage (e.g., activates green beacon 114) (step 512).

Finally, control is returned (step 516).

Therefore, the administrator can easily recognize that the user is normally authenticated when the green beacon 114 is activated, and easily identify the person who has lost or stolen the recording medium when the red beacon 116 and the alarm 118 are operated. Can be. In this case, therefore, a lost or stolen recording medium can be easily recovered.

In addition, in the case of the present invention, since there is no device for forcibly closing the entrance and there is no contact device for controlling the entrance and exit of the entrance, it is necessary to install a facility in which many people pass the entrance at a time such as a movie theater or a playground Suitable for use

According to the present invention, in the access control system using the non-contact portable recording medium, access control can be normally performed even if the normally issued recording medium is lost or stolen.

In addition, according to the present invention, in the access control system using the non-contact portable recording medium, it is possible to recover even if the normally issued recording medium is lost or stolen.

Claims (6)

An access control system for controlling access of a person carrying a portable contactless recording medium, A sensor for detecting whether or not the person passes through the predetermined entrance; A reader for reading the information recorded on the recording medium possessed by the visitor, erasing the information recorded thereon, or recording new information therein; An entrance controller for determining whether to permit the entrance and exit of the person and controlling the entry based on the detection signal from the sensor and the information read by the reader; A database interlocked with the access controller and used to store and operate a unique symbol and information related thereto for allowing access; And And a driver for driving an alarm means for instructing an administrator whether or not to allow the entry when the entry is permitted or not allowed by the entry controller. The method of claim 1, The unique symbol is an identification symbol uniquely assigned to each recording medium to uniquely identify each of the recording mediums, and is recorded in the database each time the recording medium is produced. And the information related to the unique symbol is information registered about such lost or stolen facts when an accessor who normally receives and possesses the recording medium loses or stolen his own recording medium. The method of claim 2, The access controller is, A sensor signal processing unit configured to generate a control signal for controlling whether an entrance control operation is performed in response to an output signal from the sensor; A read information analyzing unit which determines whether there is a valid RF signal emitted from the recording medium, and extracts digital information by analyzing information read by the reader when a valid RF signal exists; A unique symbol operating unit which inquires from the database 110 of the unique symbol extracted by the reader 106 and determines whether or not it is registered normally; And With respect to the unique symbols registered in the database by the unique symbol operating unit, it is determined whether the unique symbol related information, which means that the recording medium is lost or stolen, is registered in the database, and it is determined that the related information is not registered. An access control system, comprising only a relevant information operating unit allowing access of an occupant carrying a currently read recording medium. The method of claim 3, And the information extracted by the read information analyzing unit is a unique symbol of each recording medium. The method of claim 3, The unique symbol operating unit, When the recording medium is newly issued, a new unique symbol registration which reads the newly issued recording medium into the reader and registers the unique symbol of the newly issued recording medium extracted by the reading information analysis unit in the database. An access control system further comprising a mode. The method of claim 3, The driver, And an alarm control system for controlling which alarm device is to be driven, respectively, according to a case where an accessor having a recording medium currently read by the related information operating unit is allowed or not allowed.