JP2007056642A - Electric lock system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric lock system 1 which can prevent a suspicious person from breaking into a residence by utilizing the condition that a door is in an unlocked state while a resident is within a communication area of a questioning device while on the road. <P>SOLUTION: The electric lock system 1, which is provided with an electric lock drive part 22, an answering device, and the questioning device, temporarily unlocks an electric lock 50 by the electric lock drive part 22 when identifying information obtained by the questioning device is brought into agreement with the preregistered identifying information. The electric lock drive part 22 locks or unlocks the electric lock 50 provided to the door, and individual identifying information is registered to the answering device beforehand. Then the questioning device is provided with a non-contact communication part which is provided outside of the door and which obtains the identifying information from the answering device by carrying out non-contact communications with the answering device within the communication area. Then the electric lock drive part 22, which is provided with a going-out detector 10 for detecting a person going out from an entrance of a residence, locks the electric lock 50 when the going-out person is detected by the going-out detector 10. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electric lock system.

  Conventionally, an electric lock system as shown in Patent Document 1 has been used in ordinary houses and the like. This electric lock system is a non-contact ID tag which is a responder by performing data communication by electromagnetic induction between a non-contact ID tag in which ID code information which is individual identification information is written and a non-contact ID tag ID having pre-registered ID code information read by the reader device, including a reader device that is an interrogator that reads ID code information from the door and an electric lock drive unit that locks or unlocks the electric lock provided on the entrance door When the code information coincides with the code information, the electric lock driving unit locks or unlocks the electric lock.

  In this electric lock system, when a resident who has gone out has a non-contact ID tag and approaches the entrance of the building and enters the communication area of the reader device, electromagnetic induction occurs between the reader device and the non-contact ID tag. Data communication is performed in a non-contact manner, and the reader device reads the ID code information written in the non-contact ID tag and outputs it to the electric lock control device. In the electric lock control device, the ID code information input from the reader device is collated with the ID code information registered in advance, and if the ID code information input from the reader device is registered, the electric lock is fixed. Since unlocking is performed after unlocking for a period of time, a resident can enter the house while the electric lock is unlocked.

In addition, this electric lock system has a problem that power consumption is large because a radio wave is constantly transmitted from the reader device and a response from a non-contact ID tag entering the communication area is waiting to be received. Therefore, a human detection sensor that detects the presence or absence of a person in the detection area set near the entrance of the building is provided, and when this human detection sensor does not detect a human body, the reader device stops transmitting radio waves, When the human detection sensor detects a human body, the reader device transmits radio waves to perform data communication with the non-contact ID tag by electromagnetic induction, thereby reducing the power consumption of the reader device. Systems have been proposed in the past.
Japanese Patent Laid-Open No. 11-161747

  In the latter electric lock system described above, when the communication distance between the reader device and the non-contact ID tag is short, the user must take out the non-contact ID tag one by one and bring the non-contact ID tag close to the reading unit of the reader device. There was a problem that it was not easy to use. Therefore, by increasing the transmission power of the reader device and extending the communication distance, non-contact communication between the reader device and the non-contact ID tag can be performed without bringing the non-contact ID tag close to the reader unit of the reader device. However, in this case, the following problems occur.

  That is, while a resident with a non-contact ID tag goes out and stays in the communication area of the reader device when going out, the electric lock is temporarily unlocked and is therefore hidden near the door. There is a bug that allows suspicious people to enter the residence.

  The present invention was invented in view of the background art described above, and its purpose is that the door is unlocked while the resident is in the communication area of the interrogator when going out. It is providing the electric lock system which can prevent that a suspicious person penetrate | invades in a residence.

  In order to solve the above-mentioned problems, the present invention provides an electric lock drive unit that locks or unlocks an electric lock provided on a door, a responder in which individual identification information is registered in advance, and an outside of the door An interrogator having a non-contact communication unit that obtains identification information from the transponder by performing non-contact communication with the transponder in the communication area, and the identification obtained by the interrogator When the information matches the pre-registered identification information, in the electric lock system that temporarily unlocks the electric lock by the electric lock drive unit, the outing detection device for detecting the person going out from the door, When the outing detecting device detects a person going out, the electric lock driving unit locks the electric lock.

  In the electric lock system of the present invention, it is provided with an outing detection device that detects the person's outing at the entrance of the dwelling unit, and when detecting the person's outing with the outing detection device, the electric lock is locked by the electric lock driving unit. While the resident is in the communication area of the interrogator when going out, the suspicious person can be prevented from entering the residence by utilizing the door being unlocked.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a system configuration diagram of an electric lock system 1 according to an embodiment corresponding to claims 1 to 5 of the present invention.

  The electric lock system 1 used in this embodiment includes an electric lock drive unit 22 that locks or unlocks the electric lock 50 provided on the door, a responder in which individual identification information is registered in advance, and an outer side of the door. An interrogator having a non-contact communication unit that obtains identification information from the transponder by performing non-contact communication with the transponder in the communication area. When the identification information matches the previously registered identification information, in the electric lock system 1 in which the electric lock 50 is temporarily unlocked by the electric lock driving unit 22, the outing detection device 10 that detects that a person goes out of the door. When the going-out detection device 10 detects that the person has gone out, the electric lock driving unit 22 locks the electric lock 50.

  Moreover, the electric lock system 1 used in this embodiment includes the opening / closing detection unit 13 that detects whether the outing detection device 10 opens and closes the door, and the human detection unit 12 that detects a person outside the door. Thus, when the person detection unit 12 detects a person after the opening / closing detection unit 13 detects that the door has been opened, the detection processing is performed as a person going out.

  Moreover, the electric lock system 1 used in this embodiment is configured to perform non-contact communication only when the interrogator detects a person with the human detection unit 12.

  Moreover, the electric lock system 1 used in this embodiment is configured to generate a warning sound when the interrogator detects that a person has gone out by the outing detection device 10 and identification information is not returned from the responder. Means.

  Further, in the electric lock system 1 used in this embodiment, the electric lock drive unit 22 detects that the person has gone out by the outing detection device 10 and the identification information is not returned from the responder. Thus, the unlocked state of the electric lock 50 is maintained.

  Hereinafter, the electric lock system 1 of this embodiment will be described more specifically. As shown in FIG. 1, an electric lock system 1 of this embodiment is a system for locking or unlocking an electric lock 50 installed at a front door of a house. As shown in the block diagram of FIG. The electric lock control device 20 including the lock drive unit 22, the reader device 30 (interrogator), the portable transmitter 40 (response device), the outing detection device 10, and the electric lock 50 are provided as main components. It is what.

  The electric lock control device 20 includes a CPU 21, a data transmission / reception unit 23 that performs data communication between the reader device 30 and the outing detection device 10, and an electric lock 50 provided on the entrance door according to a control signal input from the CPU 21. And an electric lock drive unit 22 that locks or unlocks.

  The reader device 30 modulates and amplifies the CPU 31, the signal input from the CPU 31, and transmits the electromagnetic wave through the antenna 36 including the coil 34 and the capacitor 33, and the antenna 36. A low power receiving module 35 (signal receiving unit) that receives a specific low power wireless signal, a data transmitting / receiving unit 38 that performs data communication with the electric lock control device 20, and a buzzer unit 37. is there.

  The portable transmitter 40 receives a signal by electromagnetic induction via an antenna 46 composed of a CPU 41, a coil 44 and a capacitor 43, and demodulates the received signal, and an antenna 46 through the antenna 46. A low-power transmission module 45 (signal transmission unit) that transmits a specific low-power wireless signal, an operation SW 47 (unlocking operation unit) for performing an unlocking operation, and a battery 48 that supplies power to an internal circuit are provided. In addition, individual identification information is preset in the portable transmitter 40 and is stored in a memory (not shown). Here, compared with the non-contact communication part comprised by LF band transmission IC32 and LF band reception IC42, the communication distance of the low power reception module 35 and the low power transmission module 45 is long, and the non-contact communication part Low power communication can be performed from outside the communication area.

  The outing detection device 10 is for detecting a person who goes out of the house from the door of the entrance where the electric lock 50 is installed outside the house. The CPU 11, the human detection unit 12, the open / close detection unit 13, And a data transmission unit 14 for transmitting a signal to the electric lock control device 20. The human detection unit 12 includes a pyroelectric sensor that detects the presence or absence of a person by detecting heat rays radiated from the human body, for example, and detects the presence or absence of a person in a detection area set near the entrance door outside the house. To do. In the detection area of the human detection unit 12, non-contact communication can be performed by the above-described non-contact communication unit (consisting of the LF band transmission IC 32 and the LF band reception IC 42). In addition, the open / close detection unit 13 installs a magnetic sensor on the door frame of the entrance door, and a permanent magnet at the position of the door main body in the vicinity of the magnetic sensor when the door is closed, for example. Open / close is detected.

  The electric lock system 1 of the present embodiment has the above-described configuration, and the operation of the electric lock system 1 will be described with reference to the flowchart of FIG. First, about the processing flow of this electric lock system 1 when a resident goes out, in the state where the resident who has the portable transmitter 40 does not exist in the detection area of the human detection unit 12 of the outing detection device 10. The CPU 31 of the reader device 30 does not transmit radio waves from the LF band transmission IC 32, and the reader device 30 enters a standby state (S1). In the standby state, the electric lock 50 is normally locked by the electric lock control device 20. In this standby state, when a resident enters the detection area of the human detection unit 12 of the outing detection device 10, the human detection unit 12 detects the resident (S2), and the CPU 11 immediately before that, the outing detection device 10 The door opening / closing detection unit 13 confirms whether the door opening / closing is detected (S3). When the door opening / closing is detected, an outing detection signal is generated and the data transmission unit 14 outputs the outing detection signal. It transmits to the lock control apparatus 20 (S4). In the electric lock control device 20, when the data transmission / reception unit 23 receives the outing detection signal transmitted from the outing detection device 10, the outing detection signal is transferred to the reader device 30, and the outing detection signal of the outing detection device 10 is The data is transmitted to the reader device 30 via the lock control device 20 (S4). In the reader device 30, when the data transmitting / receiving unit 38 receives the outing detection signal transmitted from the outing detection device 10, the CPU 31 generates an activation signal triggered by the reception of the outing detection signal, and the LF band transmission IC 32 generates the activation signal. Modulation, amplification, and transmission with an LF-band radio signal via the antenna 36 (S5). When the LF band reception IC 42 of the portable transmitter 40 of the resident receives the activation signal, the CPU 41 reads out its own ID code from the memory and causes the small power transmission module 45 to transmit its own ID code signal. At this time, in the reader device 30, the low power receiving module 35 receives this ID code signal, and the CPU 31 causes the data transmission / reception unit 38 to transmit the received ID code signal to the electric lock control device 20 (S6, S7). In the electric lock control device 20, when the data transmitting / receiving unit 23 receives the ID code signal transmitted from the reader device 30, the CPU 21 compares the received ID code signal with the ID code signal registered in advance in the memory. ID authentication is performed (S8). As a result of the ID authentication, if the ID code signal transmitted from the reader device 30 matches the ID code signal registered in the memory (authentication OK), the CPU 21 unlocks the electricity when the resident goes out of the door. The lock 50 is locked by the electric lock drive unit 22 (S10), and returns to the standby state.

  On the other hand, when the low power receiving module 35 of the reader device 30 cannot receive the ID code signal of the portable transmitter 40, the ID code signal of the portable transmitter 40 transmitted from the reader device 30 is registered in the memory. If it does not match the code signal (authentication NG), the data transmitting / receiving unit 38 of the reader device 30 that has not received the ID code signal of the portable transmitting device 40 transmits an error signal to the electric lock control device 20 or authentication. The CPU 21 of the electric lock control device 20 that has failed to transmit the error signal from the data transmission / reception unit to the reader device 30 does not carry the portable transmission device 40 having an ID code that can be authenticated by the resident who has gone out. This is recognized by both the reader device 30 and the electric lock control device 20. Then, the CPU 31 of the reader device 30 sounds a warning sound at the buzzer unit 37 in response to the error signal (S11), so that the portable transmission device 40 is not carried around the person in front of the entrance door. This is a notification. Further, the electric lock drive unit 22 of the electric lock control device 20 holds the state (unlocked state) of the electric lock 50 unlocked when the resident goes out of the door as it is (S12), and is in a standby state. Return to.

  Next, a processing flow of the electric lock system 1 when a resident returns home will be described. In a state where the resident with the portable transmitter 40 does not exist in the detection area of the human detection unit 12 of the outing detector 10, the CPU 31 of the reader device 30 does not transmit radio waves from the LF band transmission IC 32, The reader device 30 enters a standby state (S1). Also, in the standby state, when the low power receiving module 35 of the reader device 30 cannot receive the ID code signal of the portable transmitter 40 when going out, or the ID code of the portable transmitter 40 transmitted from the reader device 30. The electric lock 50 is locked unless the signal does not match the ID code signal registered in the memory. In this standby state, when a resident enters the detection area of the human detection unit 12 of the outing detection device 10, the human detection unit 12 detects the resident (S2), and the CPU 11 immediately before that, the outing detection device 10 It is confirmed that the door opening / closing detection unit 13 has not detected the opening / closing of the door (S3), an entrance detection signal is generated, and the data transmission unit 14 transmits the entrance / exit detection signal to the electric lock control device 20. In the electric lock control device 20, when the data transmission / reception unit 23 receives the entry detection signal transmitted from the outing detection device 10, the entry detection signal is transferred to the reader device 30. It is transmitted to the reader device 30 via the lock control device 20 (S13). In the reader device 30, when the data transmission / reception unit 38 receives the entry detection signal transmitted from the outing detection device 10, the CPU 31 generates an activation signal triggered by the reception of the entry detection signal, and the LF band transmission IC 32 generates this activation signal. Modulation, amplification, and transmission with an LF band radio signal via the antenna 36 (S14). When the LF band reception IC 42 of the portable transmitter 40 of the resident receives the activation signal, the CPU 41 reads out its own ID code from the memory and causes the small power transmission module 45 to transmit its own ID code signal. At this time, in the reader device 30, the low power receiving module 35 receives this ID code signal, and the CPU 31 causes the data transmission / reception unit 38 to transmit the received ID code signal to the electric lock control device 20 (S14, S15). In the electric lock control device 20, when the data transmitting / receiving unit 23 receives the ID code signal transmitted from the reader device 30, the CPU 21 compares the received ID code signal with the ID code signal registered in advance in the memory. ID authentication is performed (S16). As a result of the ID authentication, if the ID code signal transmitted from the reader device 30 matches the ID code signal registered in the memory (authentication OK), the CPU 21 causes the electric lock drive unit 22 to hold the electric lock 50 for a certain period of time. After unlocking only, it is locked again (S19), and it returns to the standby state.

  On the other hand, when the low power module of the reader device 30 cannot receive the ID code signal of the portable transmitter 40, or the ID code signal of the portable transmitter 40 transmitted from the reader device 30 is registered in the memory If it does not match (authentication NG), the data transmission / reception unit 38 of the reader device 30 that has not received the ID code signal of the portable transmission device 40 transmits an error signal to the electric lock control device 20 or fails in authentication. The CPU 21 of the electric lock control device 20 does not carry the portable transmission device 40 having an ID code that can be authenticated by the resident who has returned home, for example, by transmitting an error signal from the data transmission / reception unit 23 to the reader device 30. Is recognized by both the reader device 30 and the electric lock control device 20. And the electric lock drive part 22 of the electric lock control apparatus 20 maintains the state as it is (normally locked state), and returns to a standby state.

  By providing the above configuration, the electric lock system 1 used in this embodiment includes the outing detection device 10 that detects that a person goes out from the door, and when the outing detection device 10 detects a person going out, Since the electric lock 50 is locked by the electric lock drive unit 22, a suspicious person uses the fact that the door is unlocked while the resident is in the communication area of the interrogator when going out. Can be prevented from entering the house.

  Moreover, the electric lock system 1 used in this embodiment includes the opening / closing detection unit 13 that detects whether the outing detection device 10 opens and closes the door, and the human detection unit 12 that detects a person outside the door. When the person detection unit 12 detects a person after detecting that the door has been opened by the open / close detection unit 13, the detection process is performed as a person going out. Even if the detection sensor is not installed inside or outside the door, it is possible to detect the resident's going out or returning home, and the outing detecting device 10 can be made inexpensive.

  In addition, the electric lock system 1 used in this embodiment is configured to perform non-contact communication only when the interrogator detects a person with the human detection unit 12, and thus is used in the outing detection device 10. The human detection unit 12 is also used for detection when returning home, so that the interrogator does not always need to try non-contact communication, and the power consumption of the interrogator is reduced.

  Moreover, the electric lock system 1 used in this embodiment is configured to generate a warning sound when the interrogator detects that a person has gone out by the outing detection device 10 and identification information is not returned from the responder. Since the means is provided, it is possible to prevent the resident from forgetting to carry the transponder and going out.

  In the electric lock system 1 used in this embodiment, when the electric lock driving unit 22 detects that a person has gone out by the outing detection device 10 and identification information is not returned from the responder, the electric lock driving unit 22 Since the unlocked state of the lock 50 is maintained, it is possible to prevent a resident from entering the residence when he / she forgets to carry the transponder and goes out.

The system block diagram of the electric lock system which concerns on embodiment of this invention. The flowchart figure regarding operation | movement of the electric lock system of FIG.

Explanation of symbols

1 Electric Lock System 10 Outing Detection Device 11 CPU
12 Human detection unit 13 Open / close detection unit 14 Data transmission unit 20 Electric lock control device 21 CPU
22 Electric Lock Drive Unit 23 Data Transmission / Reception Unit 30 Reader Device 31 CPU
32 LF band transmission IC
33 Capacitor 34 Coil 35 Low-power receiving module 36 Antenna 37 Buzzer unit 38 Data transmission / reception unit 40 Portable transmitter 41 CPU
42 LF band receiver IC
43 Capacitor 44 Coil 45 Low power transmission module 46 Antenna 47 Operation SW
48 battery 50 electric lock

Claims (5)

Between an electric lock drive unit that locks or unlocks an electric lock provided on the door, a responder in which individual identification information is registered in advance, and a responder provided outside the door and in the communication area A non-contact communication unit that acquires identification information from a responder by performing non-contact communication, and when the identification information acquired by the interrogator matches the pre-registered identification information, In the electric lock system that temporarily unlocks the electric lock by the electric lock drive unit,
An electric lock system comprising an outing detection device for detecting a person going out from the door, and when the outing detection device detects a person going out, the electric lock driving unit locks the electric lock.   The outing detection device includes an opening / closing detection unit that detects opening / closing of a door and a human detection unit that detects a person outside the door, and the person who has detected that the door has been opened by the opening / closing detection unit. The electric lock system according to claim 1, wherein when a person is detected by the feeling detection unit, detection processing is performed as a person going out.   The electric lock system according to claim 2, wherein the interrogator is configured to perform non-contact communication only when a human detection unit detects a person.   The said interrogator is equipped with the warning sound sounding means which sounds a warning sound, when a going-out detection apparatus detects a person's going out and identification information is not returned from a responder. Electric lock system.   The electric lock driving unit holds the unlocked state of the electric lock by the electric lock driving unit when the outing detecting device detects the going out of the person and the identification information is not returned from the responder. Item 2. The electric lock system according to Item 1.

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