KR101762625B1 - Device for detecting door opening and closing using nfc tag and security system including the same - Google Patents
Device for detecting door opening and closing using nfc tag and security system including the same Download PDFInfo
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- KR101762625B1 KR101762625B1 KR1020150148498A KR20150148498A KR101762625B1 KR 101762625 B1 KR101762625 B1 KR 101762625B1 KR 1020150148498 A KR1020150148498 A KR 1020150148498A KR 20150148498 A KR20150148498 A KR 20150148498A KR 101762625 B1 KR101762625 B1 KR 101762625B1
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- South Korea
- Prior art keywords
- signal
- nfc
- door
- closing
- nfc tag
- Prior art date
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00571—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/016—Personal emergency signalling and security systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Alarm Systems (AREA)
- Lock And Its Accessories (AREA)
Abstract
A door opening / closing determination device using an NFC tag includes an NFC transceiver, a memory, a key generator for generating an encryption key, an ID generator for generating and storing the ID of the first NFC tag, reading the ID from the memory, An NFC transceiver for transmitting the encrypted ID to the NFC transceiver for encrypting the ID and writing the encrypted ID to the first NFC tag; and a transmitter for receiving a response signal through the NFC transceiver, An NFC reader that decodes the response signal, compares the decoded response signal with the ID, and generates an acknowledgment signal indicating whether the door is opened or closed according to a result of the comparison; and an NFC reader capable of communicating with a wireless access point capable of communicating with the server A wireless communication module, and an NFC writer and an NFC reader, Wherein the notification signal corresponding to the personal number comprises a controller that is transmitted to the wireless communication module.
Description
An embodiment according to the concept of the present invention relates to an apparatus for confirming whether a door is opened or closed using an NFC (Near Field Communication) tag, and more particularly, The present invention relates to a door opening / closing confirmation device for controlling the operation of an alarm on the basis of an opening / closing signal, and a security system including the same.
The conventional door opening / closing detector determines that the door is open when a magnet installed at the door is separated from the door. Such a magnetic door opening / closing detector can disable the function of the magnetic door opening / closing detector by using an obstacle magnet even if the access is not allowed.
To overcome such disadvantages, there is a problem in that a complicated structure of electronic circuits is required to manufacture a sensor having immunity to disturbing magnets, and the manufacturing cost of the electronic circuits increases.
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method and apparatus for transmitting a periodic detection signal to an NFC tag installed at a door, receiving a response signal including an ID encrypted from the NFC tag, And a control unit for controlling the operation of the alarm on the basis of whether the opening and closing of the door is normal or not based on the checked opening and closing state and the opening and closing signals output from the door opening and closing apparatus, System.
An apparatus for checking whether a door is opened or closed through communication with a first NFC tag installed in a door according to an embodiment of the present invention includes an NFC transceiver, a memory, a key generator for generating a cryptographic key, An ID of the first NFC tag is generated and stored in the memory, the ID is read out from the memory, the ID is encrypted using the encryption key, the encryption is performed to write the encrypted ID in the first NFC tag, An NFC transceiver for receiving the response signal through the NFC transceiver, decoding the response signal using the encryption key, comparing the decoded response signal with the ID, An NFC reader for generating an acknowledgment signal indicating whether or not the door is opened or closed according to the received information, a wireless access point capable of communicating with the server, Controlling any one of the enable from the wireless communication module and the NFC writer and the NFC reader, which can communicate, and a controller for transmitting a notification signal corresponding to the confirmation signal to the wireless communication module.
When the response signal is a signal transmitted from the first NFC tag and the decoded ID included in the decoded response signal matches the ID, the NFC reader generates the confirmation signal indicating the closing of the door, The controller may transmit the notification signal corresponding to the confirmation signal indicating the closing of the door to the wireless communication module.
When the response signal is a signal transmitted from a second NFC tag different from the first NFC tag, and the decoded ID included in the decoded response signal is different from the ID, the NFC reader transmits the acknowledgment And the controller may transmit the notification signal corresponding to the confirmation signal indicating the contact of the unregistered NFC tag to the wireless communication module.
The controller can control the operation of the alarm in response to the alarm signal received via the wireless communication module. When the response signal is a signal reflected from an object and the decoded ID included in the decoded response signal is different from the ID, the NFC reader generates the confirmation signal indicating opening of the door, The notification signal against the confirmation signal indicating opening of the door can be transmitted to the wireless communication module.
The controller may receive an open / close signal output from an entrance door opening / closing device for controlling the opening / closing of the door, and may transmit the opening / closing signal and the notification signal to the wireless communication module. The controller can control the operation of the alarm in response to the alarm signal received via the wireless communication module. The door opening / closing confirmation device may further include a random number generator for generating a random number using a secret value, and the key generator may generate the encryption key using the random number.
The security system for determining whether the door is opened or closed through communication with a first NFC tag installed at a door according to an embodiment of the present invention includes a wireless access point capable of wireless communication with the door opening / And a server capable of communicating with the access point via a network, wherein the door opening / closing confirmation device comprises: an NFC transceiver; a memory; a key generator for generating a cryptographic key; And for transmitting the encrypted ID to the NFC transceiver for writing the encrypted ID in the first NFC tag, the NFC transceiver for reading the encrypted ID from the memory, Writer, receives the response signal through the NFC transceiver, decodes the response signal using the encryption key An NFC reader that compares the decoded response signal with the ID and generates an acknowledgment signal indicating whether the door is open or closed according to a result of the comparison; a wireless communication module that performs wireless communication with the wireless access point; And a controller for controlling an enable of the NFC reader and transmitting a notification signal corresponding to the confirmation signal to the wireless communication module.
When the response signal is a signal transmitted from the first NFC tag and the decoded ID included in the decoded response signal matches the ID, the NFC reader generates the confirmation signal indicating the closing of the door, The controller transmits the notification signal corresponding to the confirmation signal indicating the closing of the door to the wireless communication module and the response signal is a signal transmitted from a second NFC tag different from the first NFC tag, When the included decoded ID and the ID are different from each other, the NFC reader generates the confirmation signal indicating the contact of the unregistered NFC tag, and the controller notifies the notification Transmits a signal to the wireless communication module, and the response signal is a signal reflected from the object The NFC reader generates the confirmation signal indicating the opening of the door when the decoded ID included in the base decoded response signal is different from the ID, And transmits the notification signal to the wireless communication module.
The server responds to the notification signal corresponding to the confirmation signal indicating the contact of the unregistered NFC tag received via the network with the wireless access point or the notification signal corresponding to the confirmation signal indicating the opening of the door And the controller is capable of operating the alarm in response to the alarm signal received via the network, the wireless access point, and the wireless communication module. The server may transmit an alarm message corresponding to the alarm signal to the wireless communication device.
The door opening / closing determination device according to an embodiment of the present invention identifies an NFC tag through an encrypted ID and prevents an attempt to open a door using another NFC tag because the alarm operates when an unregistered NFC tag is accessed. Since the ID of the tag is encrypted and used, the NFC tag can not be copied by another user.
The door opening / closing confirmation device according to an embodiment of the present invention uses an NFC tag that can be realized in a very thin form, so that it can be easily installed in a door opening.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to more fully understand the drawings recited in the detailed description of the present invention, a detailed description of each drawing is provided.
1 shows a security system according to an embodiment of the present invention.
Fig. 2 shows a table for explaining the operation of the security system shown in Fig.
3 is a block diagram of a door opening / closing confirmation device according to an embodiment of the present invention.
4 is a flowchart illustrating an operation of the door opening / closing confirmation device shown in FIG.
It is to be understood that the specific structural or functional description of embodiments of the present invention disclosed herein is for illustrative purposes only and is not intended to limit the scope of the inventive concept But may be embodied in many different forms and is not limited to the embodiments set forth herein.
The embodiments according to the concept of the present invention can make various changes and can take various forms, so that the embodiments are illustrated in the drawings and described in detail herein. It should be understood, however, that it is not intended to limit the embodiments according to the concepts of the present invention to the particular forms disclosed, but includes all modifications, equivalents, or alternatives falling within the spirit and scope of the invention.
The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms may be named for the purpose of distinguishing one element from another, for example, without departing from the scope of the right according to the concept of the present invention, the first element may be referred to as a second element, The component may also be referred to as a first component.
It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like are used to specify that there are features, numbers, steps, operations, elements, parts or combinations thereof described herein, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.
Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings attached hereto.
1 shows a security system according to an embodiment of the present invention. 1, the
The door opening /
The
The door opening /
The door opening /
Since the output signal of the door opening /
The door opening /
The door opening /
Fig. 2 shows a table for explaining the operation of the security system shown in Fig. Referring to FIGS. 1 and 2, the door opening /
When the door is opened, even if the door opening /
When the door opening /
The door opening /
In Case 1 (CASE 1), the
When the door opening /
The door opening /
In Case 2 (CASE 2), the
When the door is opened in a normal way (CASE 3), the door opening /
The door opening /
When the door is opened in an abnormal manner (CASE 4), the door opening /
The door opening /
3 is a block diagram of a door opening / closing confirmation device according to an embodiment of the present invention. 1 to 3, the door opening /
The NFC transceiver 110 may refer to a hardware module that forms a magnetic field between the NFC transceiver 110 and the
For example, the NFC transceiver 110 transmits an encrypted ID (ID) output by the
The
The
The
For the write operation (WRITE), the
According to the control of the
The enabled
The
The
As described above, the
The
Under the control of the
The
4 is a flowchart illustrating an operation of the door opening / closing confirmation device shown in FIG.
1 to 4, the door opening /
The door opening /
The door opening /
The door opening /
The
The door opening /
When the
When the NFC tag communicating with the door opening /
The
When the door opening / closing signal indicates that the door is closed because the door is abnormally opened and the door opening /
As described with reference to FIG. 2, the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.
10: Security system
100: Checking whether the door is opened or closed
110: NFC transceiver
120: Memory
130: key generator
140: NFC writer
150: NFC reader
160: Wireless communication module
170: Controller
180: Alarm
190: random number generator
200: First NFC tag (registered tag)
200-1: second NFC tag (unregistered tag)
300: Door opening / closing device
400: Wireless access point
500: Server
Claims (12)
NFC transceiver;
Memory;
A key generator for generating an encryption key;
The method comprising: generating an ID of the first NFC tag, storing the ID in the memory, reading the ID from the memory, encrypting the ID using the encryption key, and writing the encrypted ID into the first NFC tag An NFC writer for transmitting the encrypted ID to the NFC transceiver;
Receiving the response signal through the NFC transceiver, decrypting the response signal using the encryption key, comparing the decrypted response signal with the ID, generating an acknowledgment signal indicating whether the door is opened or closed according to a result of the comparison An NFC reader;
A wireless communication module capable of communicating with a wireless access point capable of communicating with a server; And
And a controller for controlling the enable of either the NFC writer or the NFC reader and transmitting a notification signal corresponding to the confirmation signal to the wireless communication module.
When the response signal is a signal transmitted from the first NFC tag and the decoded ID included in the decoded response signal matches the ID, the NFC reader generates the confirmation signal indicating the closing of the door,
Wherein the controller transmits the notification signal corresponding to the confirmation signal indicating the closing of the door to the wireless communication module.
When the response signal is a signal transmitted from a second NFC tag different from the first NFC tag, and the decoded ID included in the decoded response signal is different from the ID, the NFC reader transmits the acknowledgment Signal,
Wherein the controller transmits the notification signal corresponding to the confirmation signal indicating the contact of the unregistered NFC tag to the wireless communication module.
Wherein the controller controls the operation of the alarm in response to the alarm signal received through the wireless communication module.
When the response signal is a signal reflected from a floor or an object and the decoded ID included in the decoded response signal is different from the ID, the NFC reader generates the confirmation signal indicating opening of the door,
Wherein the controller transmits the notification signal against the confirmation signal indicating opening of the door to the wireless communication module.
Closing signal output from the door opening / closing device for controlling the opening and closing of the door,
Wherein the opening / closing signal and the notification signal are transmitted to the wireless communication module.
Wherein the controller controls the operation of the alarm in response to the alarm signal received through the wireless communication module.
And a random number generator for generating a random number using a secret value,
Wherein the key generator generates the encryption key using the random number.
A wireless access point capable of wireless communication with the door opening / closing confirmation device;
And a server capable of communicating with the wireless access point via a network,
The door opening / closing confirmation device includes:
NFC transceiver;
Memory;
A key generator for generating an encryption key;
The method comprising: generating an ID of the first NFC tag, storing the ID in the memory, reading the ID from the memory, encrypting the ID using the encryption key, and writing the encrypted ID into the first NFC tag An NFC writer for transmitting the encrypted ID to the NFC transceiver;
Receiving the response signal through the NFC transceiver, decrypting the response signal using the encryption key, comparing the decrypted response signal with the ID, generating an acknowledgment signal indicating whether the door is opened or closed according to a result of the comparison An NFC reader;
A wireless communication module for performing the wireless communication with the wireless access point; And
And a controller for controlling the enable of either the NFC writer or the NFC reader and transmitting a notification signal corresponding to the confirmation signal to the wireless communication module.
When the response signal is a signal transmitted from the first NFC tag and the decoded ID included in the decoded response signal matches the ID, the NFC reader generates the confirmation signal indicating the closing of the door,
The controller transmits the notification signal corresponding to the confirmation signal indicating the closing of the door to the wireless communication module,
When the response signal is a signal transmitted from a second NFC tag different from the first NFC tag, and the decoded ID included in the decoded response signal is different from the ID, the NFC reader transmits the acknowledgment Signal,
The controller transmits the notification signal corresponding to the confirmation signal indicating the contact of the unregistered NFC tag to the wireless communication module,
When the response signal is a signal reflected from an object and the decoded ID included in the decoded response signal is different from the ID, the NFC reader generates the confirmation signal indicating opening of the door,
Wherein the controller transmits the notification signal against the confirmation signal indicating opening of the door to the wireless communication module.
The server responds to the notification signal corresponding to the confirmation signal indicating the contact of the unregistered NFC tag received via the network with the wireless access point or the notification signal corresponding to the confirmation signal indicating the opening of the door Generates an alarm signal,
Wherein the controller operates the alarm in response to the alarm signal received via the network, the wireless access point, and the wireless communication module.
Wherein the server transmits an alarm message corresponding to the alarm signal to a wireless communication device of a security manager managing the door opening / closing confirmation device.
Priority Applications (1)
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KR1020150148498A KR101762625B1 (en) | 2015-10-26 | 2015-10-26 | Device for detecting door opening and closing using nfc tag and security system including the same |
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KR1020150148498A KR101762625B1 (en) | 2015-10-26 | 2015-10-26 | Device for detecting door opening and closing using nfc tag and security system including the same |
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KR20170047874A KR20170047874A (en) | 2017-05-08 |
KR101762625B1 true KR101762625B1 (en) | 2017-08-03 |
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Families Citing this family (3)
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CN107393106B (en) * | 2017-09-19 | 2020-06-26 | 北京百悟科技有限公司 | Access control data writing method, NFC source device, access control method and system |
KR102463630B1 (en) * | 2020-09-25 | 2022-11-04 | (주) 듀얼아이 | Entrance control device |
KR102437263B1 (en) * | 2020-12-02 | 2022-08-26 | 주식회사 에스원 | Preventing Method of Security Clear Mistake by Using UWB sensor and System thereof |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005115409A (en) | 2003-10-02 | 2005-04-28 | Inax Corp | Abnormality detecting apparatus for opening and closing structure |
JP2006285863A (en) | 2005-04-04 | 2006-10-19 | Matsushita Electric Works Ltd | Locking monitoring device |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005115409A (en) | 2003-10-02 | 2005-04-28 | Inax Corp | Abnormality detecting apparatus for opening and closing structure |
JP2006285863A (en) | 2005-04-04 | 2006-10-19 | Matsushita Electric Works Ltd | Locking monitoring device |
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