JP2001317248A - Security system and method for controlling the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the reliability of a security system in terms of security, the security system setting and releasing an electric lock, based on information recorded in a card. SOLUTION: The security system 1 is comprised of a server 2 set in a room, the electric lock device 5 installed in a door 4, for locking the door 4, and a card 3 corresponding to the server 2, and functions such that ID information is transmitted by radio waves from the card 3 when the card 3 approaches the electric lock device 5. The server 2 receives the ID information transmitted from the card 3, and determines whether the ID information is suitable. Only when it is determined that the ID information is suitable, the server 2 transmits an unlocking control signal to the electric lock device 5. Upon reception of the unlocking control signal, the electric lock device 5 releases locking of the door 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security system for identifying a resident and controlling locking and unlocking of a door, and a control method therefor.

[0002]

2. Description of the Related Art Conventionally, cards which record information, such as credit cards used in financial institutions, have been widely used.
Such cards are mainly of the contact type that reads information by contacting a magnetic head, but recently, non-contact cards that can read information without directly contacting a card reader have been used. Was.

[0003] For example, Japanese Patent No. 2749525 has a function of a conventional contact card reader for reading magnetic information recorded on a magnetic card and a function of a card reader for reading a non-contact IC card without contact. Card readers have been proposed.

[0004] The use of cards on which information is recorded has also been widespread, such as the use for controlling electric locks. An electric lock is a lock that is unlocked and locked by electrical control, and is locked and unlocked by a motor operation, and an electromagnetic lock that locks and unlocks by operation of a solenoid or the like, depending on the operation mode. Divided into motor locks. Electric locks have different characteristics depending on the operation mode, and are therefore installed according to the usage of the building or room.

Japanese Patent Application Laid-Open No. Hei 7-26808 discloses that an electric lock of each type of an electromagnetic lock and a motor lock is controlled by a control program corresponding to each type, so that it is suitable for various uses regardless of the type. There is disclosed a control method for causing such an operation.

For controlling such an electric lock based on information recorded on a card, for example, Japanese Patent Laid-Open No.
There is a building management device disclosed in JP-A-350808. This device has a card reader at the entrance of the building and controls the electronic locks of a plurality of rooms based on the information read by the card reader, and it is not necessary to provide a card reader for each room. Have.

As described above, when a building is managed by using a card and an electric lock, unlocking / unlocking is performed based on a relatively large amount of information.
Because the lock can be performed, security reliability has been improved.

[0008]

However, when controlling an electric lock using a card, a card reader is installed near or adjacent to the electric lock, and the card reader authenticates and decrypts the read information. Locking / locking control is performed. Authentication in this case is the card information,
This is performed by collating the information with the card reader.
For this reason, there is a problem in that a card reader holding information on authentication is present outside the room, and there is an anxiety factor in security.

Also, since the amount of information that can be stored in the card reader is limited, it has been difficult to improve security reliability. Furthermore, if the information related to the authentication possessed by the card reader is made rewritable, a countermeasure against unauthorized rewriting is required when the card reader is installed outdoors. However,
If the information of the card reader cannot be updated, there is a problem that processing such as updating of a password cannot be performed, and reliability cannot be improved.

It is an object of the present invention to improve the reliability of a security system for locking and unlocking an electric lock based on information recorded on a card.

[0011]

The present invention has the following features in order to solve such a problem. In the following description of the means, a configuration corresponding to the embodiment is shown by parentheses as an example. Reference numerals and the like are reference numerals and the like in the drawings described later.

According to the first aspect of the present invention, an entrance (for example,
A lock device (for example, an electric lock device 5 shown in FIG. 1) for holding the door 4) shown in FIG. 1 in an impassable state, and a control device for controlling the lock device (for example, the server 2 shown in FIG. 1). And an identification information transmitting device (for example, a card 3 shown in FIG. 1) for wirelessly transmitting the identification information, wherein the control device transmits the identification information wirelessly transmitted from the identification information transmitting device. Receiving means for receiving information (for example, the wireless communication device 26 shown in FIG. 2 and the CPU 21 performing the processing shown in step S1 of FIG. 5)
Determining means for determining whether or not the identification information received by the receiving means is appropriate (for example, the CPU 21 performing the processing shown in step S3 of FIG. 5); and determining that the identification information is appropriate by the determining means. Transmission means for transmitting a release signal to the lock device when it is determined (for example, FIG.
, And the CPU 21 that performs the processing shown in step S4 of FIG. 5), and the lock device receives a release signal transmitted from the transmission device of the control device (for example, Wireless receiver 5 shown in FIG.
2) and a lock means (for example, a lock control unit 51 and an electric lock 53) for making the entrance accessible only when a release signal is received by the receiving means.

According to a fifth aspect of the present invention, there is provided a lock device for maintaining a state in which a doorway cannot be passed, a control device for controlling the lock device, and an identification information transmitting device for wirelessly transmitting identification information. A control method of a security system, wherein the control device receives identification information wirelessly transmitted from the identification information transmitting device, determines whether the received identification information is appropriate, and determines that the identification information is appropriate. If determined, a release signal is transmitted to the lock device,
The lock device receives a release signal transmitted from the control device, and makes it possible to pass through the entrance only when the release signal is received.

Here, the doorway may be, for example, a door at the entrance of a building or a gate, but may be a doorway on a flat ground such as a parking lot. good. Further, as the locking means, for example, an electric lock attached to an entrance door or a gate may be mentioned, but a chain or a car stop for restricting a vehicle from entering or exiting a parking lot or the like may be used.

Therefore, the control device determines whether or not the identification information transmitted from the identification information transmitting device is appropriate. Only when the identification information is appropriate, a release signal is transmitted to the lock device, and the entrance and exit are passed. It becomes possible. For this reason, the user who passes through the entrance can be limited to only the user having the identification information transmitting device that can transmit appropriate identification information, and a highly reliable security system can be provided. Further, the lock device enables passage through the entrance by receiving the release signal from the control device. Therefore, the lock device itself does not perform processing such as determination of identification information. That is, since the lock device operates only under the control of the control device and the lock device is not directly operated, a failure or a malfunction is less likely to occur, and the reliability can be further improved. Further, the identification information is wirelessly transmitted from the identification information transmitting device to the control device, and there is no need to wire-connect the two devices. For this reason, a failure or a malfunction is less likely to occur, and the reliability can be further improved.

According to a second aspect of the present invention, in the security system according to the first aspect, the control device further includes storage means (for example, a storage device 23 shown in FIG. 2) for storing predetermined identification information, The discriminating means of the control device, the identification information received by the receiving means,
It is characterized in that it is determined whether or not the identification information is appropriate by determining whether or not the identification information matches the identification information stored in the storage means.

Therefore, it is determined whether the identification information is appropriate by determining whether the identification information stored in advance matches the identification information transmitted wirelessly, so that appropriate identification information can be easily obtained. Can manage. That is, by storing a plurality of pieces of identification information, it is easy to allow a plurality of users to pass through the entrance, and when changing the users who can pass, it is sufficient to update the storage contents of the storage means. .
Therefore, a highly reliable security system that is easy to manage can be provided.

The third aspect of the present invention is the first or second aspect.
In the security system described above, the lock device includes a power supply unit that generates an AC voltage having a predetermined frequency (for example, the power supply unit 54 illustrated in FIG. 4), and a magnetic field based on the AC voltage generated by the power supply unit. A power transmitting unit (for example, a power transmitting unit 55 shown in FIG. 4) for generating the power, and the identification information transmitting device includes a power receiving unit (for example, an electromotive force induced by a magnetic field generated by the power transmitting unit of the lock device).
A power receiving unit 34) shown in FIG. 3 is further provided, and the identification information is transmitted using an electromotive force induced in the power receiving unit as a power supply.

Here, the power transmitting section and the power receiving section include, for example, those having a ferrite core and a coil and operating as a kind of transformer. In this case, the power transmitting unit operates as the primary side of the transformer, and the power receiving unit operates as the secondary side.

Therefore, the identification information transmitting device automatically operates upon receiving power supply when approaching the lock device, so that there is no need to provide a power source on the identification information transmitting device side. For this reason, it is easy to make the identification information transmitting device a thin or small configuration such as a card type. In addition, if the identification information transmission device is configured to be operable only by an electromotive force obtained by a magnetic field generated by a specific lock device and is not operated by a magnetic field generated by a power transmission unit having a different frequency or voltage value, the identification information transmission device may have It operates only in the vicinity of the lock device. For this reason, the reliability can be further improved by reducing the opportunity to transmit the identification information without impairing the convenience.

According to a fourth aspect of the present invention, in the security system according to any one of the first to third aspects, the control device transmits a release signal to the lock device by the transmission means after a lapse of a predetermined time. Transmitting a lock start signal to the lock device, receiving means of the lock device receiving a lock start signal transmitted from the control device, and the lock means receiving a lock start signal by the receiving means Thereafter, the entrance is kept in an impassable state.

Therefore, after a certain period of time from when the doorway can be passed by the lock device, the doorway is automatically disabled from passing. For this reason, it becomes even more difficult to pass without an appropriate identification information transmitting device. For this reason, the user who passes can be reliably limited to only the user having the appropriate identification information transmitting device, and a more reliable security system can be provided.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS.

First, the configuration will be described. FIG. 1 is an external view showing a configuration of a security system 1 according to an embodiment of the present invention. The security system 1 is installed in a building having a door 4. As shown in FIG. 1, the security system 1 includes an electric lock device 5 attached to the door 4,
A card 3 used as a key for the electric lock device 5, and
The server 2 is installed indoors and controls the electric lock device 5. The server 2, the card 3, and the electric lock device 5 can communicate with each other via a wireless communication line.

The server 2 performs wireless communication with various electronic devices A, B,... Provided in a building to which the security system 1 is attached, and controls the operation of these electronic devices A, B,. I do. The electronic devices A, B,... Include lighting devices inside and outside the building, telephones, facsimiles, televisions, video tape recorders / players, CD players, various cooking utensils, bath control devices, and the like.
Any device that includes a receiving device that receives a wireless signal and that can operate in accordance with a control signal received by the receiving device may be used.

FIG. 2 is a block diagram showing the internal configuration of the server 2. As shown in FIG. 2, the server 2 has a CPU
(Central Processing Unit) 21, RAM (Random A)
ccessMemory) 22, a storage device 23, an input device 24, a display device 25, a wireless communication device 26, and the like. These components are connected by a bus 27.

The CPU 21 reads and executes various control programs stored in the storage device 23 in accordance with an instruction input from the input device 24, controls each part of the server 2, and displays the input contents and the like in the input device 24. And display information to be output to the display device 25 for display on the display screen. Further, the CPU 21
Based on the information received by the wireless communication device 26, the electric lock device 5, the electronic devices A, B,.
To transmit a control signal wirelessly.

Specifically, when the CPU 21 receives the ID information wirelessly transmitted from the card 3 by the wireless communication device 26, the CPU 21 compares the received ID information with the ID in the storage device 23.
Check with the ID information stored in the storage area 23a,
If the ID information is appropriate, the wireless communication device 26 transmits an unlock control signal to the door 4 to unlock the electric lock 53 of the electric lock device 5. Also, the I received from the card 3
If the D information is inappropriate, the CPU 21 ends this processing as it is.

If the ID information received from the card 3 is appropriate, the CPU 21 acquires information on the operation set in the corresponding operation area 23b in association with the ID information, The control signal is wirelessly transmitted to the devices A, B,.

Then, the CPU 21 transmits the unlock control signal to the electric lock device 5 and transmits a lock control signal after a lapse of a predetermined time or more to lock the electric lock 53.

The RAM 22 forms a work area for temporarily storing programs executed by the CPU 21, data relating to these programs, and the like.

The storage device 23 has a storage medium in which programs, data and the like are stored in advance, and this storage medium is constituted by a magnetic or optical recording medium or a semiconductor memory. The storage medium is fixedly provided in the storage device or is detachably mounted. The storage medium includes a control program executed by the CPU 21, various application programs, and data related to each program. And so on.

The storage device 23 has storage areas for an ID storage area 23a, a corresponding operation area 23b, and a control information storage area 23c. ID storage area 23
In a, an I about a person who is allowed to enter the inside of the door 4 is shown.
Only the person holding the card 3 in which the D information is stored and the ID information stored in the ID storage area 23a is recorded can enter the inside of the door 4.

The corresponding operation area 23b stores, for each piece of ID information stored in the ID storage area 23a, an operation to be executed when the ID information is received by the wireless communication device 26. Here, the operation stored in the corresponding operation area 23b specifically refers to the electronic devices A, B,.
The operations include, for example, turning on / off a lighting device, turning on / off a television power supply, and the like. Therefore, the ID information stored in the ID storage area 23a is stored in the wireless communication device 26.
Is received, the CPU 21 causes the wireless communication device 26 to transmit a control signal for executing an operation corresponding to the ID information.

Information regarding the electronic devices A, B,... Is stored in the control information storage area 23c. For example, information such as the power consumption of each device and the type of each device, or information on the protocol of a control signal transmitted to each device is stored. Thereby, a wider variety of devices can be controlled by the control signal transmitted from the wireless communication device 26. Also, for example, it is possible to prevent a situation in which a device having a large power consumption is simultaneously activated and exceeds an allowable power amount, or a device having a heat source is operated unattended for a long time. Control can be performed.

The input device 24 includes a keyboard having numeric keys, character keys, various function keys, and the like, or a pointing device such as a mouse, a tablet, and a touch panel. When an operation is performed by the user, an operation signal indicating the content of the operation is generated and output to the CPU 21.

The display device 25 is a CRT (Cathode Ray Tu).
be) and a display screen such as an LCD (liquid crystal display screen).
The input contents in U21 and the contents stored in the storage device 23 are displayed on the display screen.

The wireless communication device 26 includes an antenna, a modulation / demodulation circuit, an RF, an encoding / decoding circuit, and the like, receives signals transmitted from various devices such as the card 3 and the door 4, and sends the signals to the CPU 21. Output to the CPU 21
Wirelessly transmits the control signal generated by the above to the various devices.

FIG. 3 is a block diagram showing the internal circuit configuration of the card 3. Card 3 is an IC (Integrated Circuit)
so-called non-contact type IC with integrated circuit (it: integrated circuit)
The card is a thin main body including a microcomputer 31, an ID memory 32, a wireless transmission unit 33, and a power reception unit 34.

The microcomputer 31 starts operating when power is supplied from the power receiving unit 34, reads out the ID information stored in the ID memory 32, and causes the wireless transmitting unit 33 to transmit the information wirelessly.

The ID memory 32 is constituted by a semiconductor storage element such as a flash memory and stores ID information.
The ID information stored in the ID memory 32 may have a rewritable configuration.

The radio transmission unit 33 includes an antenna, a modulation circuit, and the like, and has an ID memory 32 input from the microcomputer 31.
Wirelessly transmit the ID information in the box.

The power receiving unit 34 includes a ferrite core, a coil, and the like, and an electromotive force is induced by an electromagnetic induction phenomenon in a magnetic field generated by the power transmitting unit 55 of the electric lock device 5. That is, the power receiving unit 34 and the power transmitting unit 46 form a kind of transformer, and the power receiving unit 34 functions as a power receiving side. Then, the power receiving unit 34 outputs the induced electromotive force to the microcomputer 31.
Output to Therefore, the microcomputer 31 of the card 3 is supplied with power when the power receiving unit 34 approaches the power transmitting unit 55,
Operate.

FIG. 4 is a block diagram showing an internal circuit configuration of the electric lock device 5. As shown in FIG. 1, the electric lock device 5 is provided near the door knob 41 of the door 4 and locks and fixes the door 4. In the front of the door 4, there is no keyhole or the like near the door knob 41 for physically setting a key to perform locking / unlocking.

As shown in FIG. 4, the electric lock device 5 includes a lock control unit 51, a radio reception unit 52, an electric lock 53, and a power supply unit 54.
And a power transmission unit 55.

When the lock control unit 51 receives the unlock control signal wirelessly transmitted from the server 2 by the wireless receiving unit 52, the lock control unit 51 drives and unlocks the electric lock 53 and shifts to a state where the door 4 can be opened and closed. Let it. When the lock control unit 51 receives the lock control signal wirelessly transmitted from the server 2 by the wireless reception unit 52, the lock control unit 51 controls and locks the electric lock 53 so that the door 4 cannot be opened or closed.

The wireless receiving section 52 includes an antenna, a modulation / demodulation circuit, RF, an encoding / decoding circuit, and the like, and transmits an unlock control signal and a lock control signal wirelessly transmitted from the wireless communication device 26 of the server 2. It receives and outputs it to the lock control unit 51.

The electric lock 53 is an electric lock that performs a locking / unlocking operation under the control of the lock control unit 51, and may be either an electromagnetic lock electric lock or a motor lock electric lock.

The power supply unit 54 is connected to an AC power supply (not shown), a battery, and the like, and generates an AC voltage having a predetermined frequency.
The power is supplied to the power transmission unit 55. Here, the frequency and voltage value of the AC voltage generated by the power supply unit 54 are preset values.

The power transmission unit 55 includes a ferrite core, a coil, and the like, and generates a magnetic field based on the AC voltage supplied from the power supply unit 54.

The security system 1 configured as described above firstly includes the electric lock device 5 attached to the door 4.
When the card 3 approaches, the electromotive force is induced in the power receiving unit 34 by the magnetic field generated by the power transmitting unit 55, the microcomputer 31 operates, and the ID information in the ID memory 32 is wirelessly transmitted by the wireless transmitting unit 33. . The transmitted ID information is received by the wireless communication device 26 of the server 2, and the server 2 receives the ID information received by the wireless communication device 26.
The information is collated, and a control signal is wirelessly transmitted to the electric lock device 5 according to the result. In the electric lock device 5, the electric lock 53 is unlocked / locked according to the control signal received by the wireless receiving unit 52.

Therefore, in the security system 1, the electric lock device 5 is locked / unlocked by the card 3, so that the card 3 functions as a key in the security system 1.

In order to operate the card 3, the card 3 needs to approach the electric lock device 5.
The distance between the power lock unit 5 and the electric lock device 5 depends on the frequency and voltage value of the AC voltage in the power supply unit 54, and the power supply unit 54 and the power receiving unit 3.
4 can be arbitrarily configured depending on the coil winding ratio and size. That is, the operation may be performed only when the user brings the card 3 close enough to contact the door knob 41, or may be operated even when the card 3 is in the user's baggage. Is also good.

Here, the operation of the server 2 will be described in detail with reference to FIG. FIG. 5 is a flowchart showing the operation of the server 2. In FIG. 5, first, the ID information transmitted by the wireless transmission unit 33 of the card 3 is received by the wireless communication device 26 (step S1).

The CPU 21 analyzes the received ID information and compares it with the ID information stored in the ID storage area 23a in the storage device 23 (step S2). And CP
U21 determines that the ID information received by the wireless communication device 26 matches (step S3; Ye)
s), and proceed to step S4. If the ID information does not match (step S3; No), the process ends.

At step S 4, the CPU 21 generates an unlock control signal and causes the wireless communication device 26 to transmit the signal to the electric lock device 5. In the electric lock device 5, the electric lock 53 is unlocked based on the unlock control signal.

The CPU 21 analyzes the I analyzed in step S2.
The setting of the corresponding operation stored in the corresponding operation area 23b in association with the D information is read (step S5). And
The CPU 21 generates a control signal for causing the electronic devices A, B,... To execute the operation read in step S5,
The wireless communication device 26 wirelessly transmits the electronic devices A, B,... (Step S6).

Thereafter, the CPU 21 waits until a predetermined time elapses (step S7). After the predetermined time elapses, the CPU 21 generates a locking control signal, and
6 to the electric lock device 5 (step S
8). Thereby, in the electric lock device 5, the electric lock 5
3 is locked and the door 4 is locked.

Therefore, the ID storage area 23a of the server 2
Since the door 4 can be opened only by using the card 3 that can transmit the ID information stored in the security system 1, a highly reliable security system 1 can be provided.

For the user who can open the door 4, by managing the setting contents in the ID storage area 23a, a plurality of pieces of ID information can be changed to appropriate ID information or appropriate ID information can be updated. Easy. That is, it is possible to provide the security system 1 which is easy to manage and has high reliability.

In the security system 1, ID information is wirelessly transmitted from the card 3 to the server 2. For this reason, since it is not necessary to provide a hole in the door 4 or expose the wiring, a failure or malfunction can be prevented, and reliability can be improved. In addition, the electric lock device 5 operates only in accordance with the control signal wirelessly transmitted from the server 2 and is not directly operated, so that failure and malfunction can be prevented,
The reliability can be further improved.

Further, the CPU 21 can read out the operation stored in the corresponding operation area 23b in association with the received ID information and control the electronic devices A, B,. For example, it is possible to turn on a lighting device, control ON / OFF of a television or a video tape recorder, and the like. Thus, the security system 1 having both reliability and convenience can be provided.

Further, the CPU 21 locks the electric lock 53 after the electric lock 53 of the electric lock device 5 is unlocked or after a certain period of time, so that the reliability can be further improved.

Since the card 3 operates using the electromotive force induced in the power receiving unit 34 as a power supply in the magnetic field generated by the power transmitting unit 55, it is not necessary to incorporate a power supply in the card 3. Therefore, the card 3 can be easily made thinner and smaller, and the convenience can be improved. Further, the microcomputer 31 is configured to correspond only to the electromotive force induced in the power receiving unit 34 by the magnetic field generated by the specific power transmitting unit 55,
That is, if the configuration does not operate with another magnetic field, it operates near the specific electric lock device 5 and does not operate with an unrelated magnetic field. Therefore, without sacrificing convenience,
Transmission of the ID information is restricted, and the reliability of the security system 1 can be improved.

In the above-described embodiment, the security system 1 has a configuration in which the opening and closing of the door 4 of the building is restricted by the electric lock device 5, but the present invention is not limited to this. Alternatively, the configuration may be such that the opening and closing of the gate is restricted, or the entry and exit of the vehicle to the parking lot is restricted by a chain, a car stop, or the like.

In the security system 1, a lock control signal is transmitted from the wireless communication device 26 after a predetermined time has passed since the electric lock 53 was unlocked, and
Although the lock 3 is configured to be locked, the present invention is not limited to this. For example, a configuration may be adopted in which a timer is built in the lock control unit 51 and the unlocked state of the electric lock 53 is maintained for a fixed time only. Alternatively, the passage of the user at the door 4 may be detected, and the electric lock 53 may be locked again after the passage of the user.

Further, the electric lock device 5 is provided with an infrared sensor or the like, and only when a person approaches the vicinity of the door 4,
If the power supply unit 54 supplies power to generate a magnetic field, the amount of power consumption in the electric lock device 5 can be reduced.

When the ID information transmitted by the card 3 is not stored in the ID storage area 23a, the CPU 21 does not perform any processing.
For example, a camera is installed on the door 4 and the ID storage area 2
When ID information that is not stored in 3a is transmitted, a configuration may be adopted in which shooting is performed, or guidance that the ID information is not appropriate may be notified by a speaker or the like.

The shape of the card 3 and the position of the electric lock device 5 on the door 4 are arbitrary.
Needless to say, the specific detailed configuration can be appropriately changed.

[0070]

According to the security system of the first aspect of the present invention and the control method of the security system of the fifth aspect of the present invention, a user passing through an entrance / exit can transmit appropriate identification information. Only a user having the device can be provided, and a highly reliable security system can be provided. Further, the lock device itself does not perform processing such as identification information determination and operates only under the control of the control device, and is not directly operated. Therefore, a failure or a malfunction is less likely to occur, and the reliability is further improved. Can be planned. In addition, there is no need to connect the identification information transmitting device and the control device by wire, and a failure or malfunction does not easily occur, and further improvement in reliability can be achieved.

According to the second aspect of the present invention, by storing a plurality of identification information, a plurality of users can be allowed to pass through the entrance and exit, and when the user who can pass is changed, the information is stored. What is necessary is just to update the storage contents of the means, and it is possible to provide a highly reliable security system that is easy to manage.

According to the third aspect of the present invention, there is no need to provide a power supply on the identification information transmitting apparatus side, and the identification information transmitting apparatus can be easily formed into a thin or small configuration such as a card type. Further, by making the identification information transmitting device operate only in the vicinity of the specific lock device, it is possible to reduce the chance of transmitting the identification information without impairing the convenience, and to further improve the reliability.

According to the fourth aspect of the invention, it is made more difficult to pass without having an appropriate identification information transmitting device,
Since users who pass through can be reliably limited to only those who have an appropriate identification information transmitting device, a more reliable security system can be provided.

[Brief description of the drawings]

FIG. 1 is an external view showing a configuration of a security system 1 according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an internal configuration of a server 2 shown in FIG.

FIG. 3 is a block diagram showing an internal circuit configuration of the card 3 shown in FIG.

FIG. 4 is a block diagram showing an internal circuit configuration of the door 4 shown in FIG.

FIG. 5 is a flowchart showing an operation of the security system 1 shown in FIG.

[Explanation of symbols]

 Reference Signs List 1 security system 2 server 21 CPU 22 RAM 23 storage device 23a ID storage area 23b corresponding operation area 23c control information storage area 24 input device 25 display device 26 wireless communication device 3 card 31 microcomputer 32 ID memory 33 wireless transmission unit 34 power reception unit 4 Door 41 Door knob 42 Electric lock 43 Locking control unit 44 Wireless receiving unit 45 Power supply unit 46 Power transmission unit

Claims (5)

[Claims] 1. A security system comprising a lock device that keeps a doorway inaccessible, a control device that controls the lock device, and an identification information transmitting device that wirelessly transmits identification information. A receiving unit for receiving the identification information wirelessly transmitted from the identification information transmitting device; a determining unit for determining whether or not the identification information received by the receiving unit is appropriate; And transmitting means for transmitting a release signal to the lock device when it is determined that the lock device is appropriate, the lock device receiving means for receiving a release signal transmitted from the transmission means of the control device, Lock means for enabling the entrance to pass only when a release signal is received by the receiving means. Tee system. 2. The control device further comprises storage means for storing predetermined identification information, wherein the determination means of the control device stores the identification information received by the reception means in the storage means. 2. The security system according to claim 1, wherein whether or not the identification information is appropriate is determined by determining whether or not the identification information matches the identification information. 3. The lock device further includes a power supply unit that generates an AC voltage having a predetermined frequency, and a power transmission unit that generates a magnetic field based on the AC voltage generated by the power supply unit. The transmitting device further includes a power receiving unit in which an electromotive force is induced by a magnetic field generated by a power transmitting unit of the lock device, and transmits the identification information using the electromotive force induced in the power receiving unit as a power supply. 3. The security system according to claim 1, wherein 4. The control device transmits a lock start signal to the lock device after a lapse of a predetermined time after transmitting a release signal to the lock device by the transmission device, and the receiving device of the lock device includes: 2. A lock start signal transmitted from said control device is received, and said lock means keeps said entrance / exit impassable after receiving the lock start signal by said reception means. 4. The security system according to any one of claims 1 to 3. 5. A control method for a security system, comprising: a lock device for holding a door in an impassable state; a control device for controlling the lock device; and an identification information transmitting device for wirelessly transmitting identification information. Receiving, by the control device, identification information wirelessly transmitted from the identification information transmitting device, determining whether the received identification information is appropriate, and when determining that the received identification information is appropriate, releasing the release signal Transmitting the lock signal to the lock device, receiving the release signal transmitted from the control device by the lock device, and making the entrance / exit only passable when the release signal is received. How to control the system.