JP2019031891A - Door control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress unexpected communication of a signal used for door control with a simple configuration. SOLUTION: A door control system 1 controls a door by controlling an electric lock device 2 provided on the door when unique identification information is authenticated from a portable device 3a and 3b. The outdoor reader 4 is located outside the room with respect to the door, transmits a response request signal, and receives a response signal from the portable device 3a that responds to the response request signal, and authenticates whether the identification information of the response signal is valid or not. The door control unit 12 and the door control unit such as the electric lock control unit 13 that controls the door by controlling the electric lock device 2 and the like when the response signal is authenticated are provided, and the indoor reader 5 is provided. The jamming signal generation unit 5a generates a jamming signal that disturbs the response request signal, and the indoor reader 5 transmits the jamming signal to the door at least on the indoor side. [Selection diagram] Fig. 1

Description

  The present invention relates to a door control system that controls locking / unlocking or opening / closing of a door when authentication information unique to the portable device is authenticated.

  Conventionally, at entrances and entrances of commercial or public facilities such as hotels and office buildings, entrances and entrances of apartment buildings or general houses, etc. An electric lock system that controls the electric lock of the door when the identification information stored in a non-contact key (portable device) such as a remote controller or IC card is authenticated, and controls the opening and closing of the door when the identification information is authenticated A door control system such as an automatic door system is employed.

  The door control system includes a reader that reads identification information from a portable device near the door or near the door, and the reader constantly transmits a response request signal toward the portable device near the door. In response to the response request signal, the portable device transmits a response signal including unique identification information to the reader. For example, an electric lock system as a door control system can unlock the electric lock when the reader authenticates the identification information read from the portable device. In the electric lock system, the unlocked electric lock is locked automatically after a predetermined time has elapsed or by operating a locking operation means provided near the door.

  For example, the lock control system disclosed in Patent Document 1 includes a motion detection sensor, and outputs a response wireless signal including motion information from the motion detection sensor when a predetermined response request wireless signal is received. And a lock control device that outputs a response request radio signal to the portable device, and controls the unlocking of the electric lock on the condition that authentication for the response radio signal from the portable device is established and the presence of the motion signal exists.

JP 2009-133137 A

  However, in the door control system as described above, for example, when the user who owns the portable device is in the entrance room and in the communicable area of the reader, the portable device receives the response request signal from the reader. Because the response signal is sent to the device, the identification information of the response signal is authenticated without the intention of the user, allowing the unlocking of the electric lock and the opening of the automatic door, thereby allowing unauthorized entry. . For example, even if the reader is installed outdoors and the portable device is in the room, the response request signal or response signal is not completely blocked by the door or wall, but communicates indoors and outdoors through a window near the door. It may be done.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a door control system that suppresses unexpected communication of signals used for door control with a simple configuration.

  In order to solve the above-described problem, a first door control system of the present invention is a door control system that controls a door when unique identification information is authenticated from a portable device. And a reader that transmits a response request signal and receives a response signal from the portable device in response to the response request signal, and an authentication unit that authenticates whether the identification information of the response signal is valid And a door control unit that controls the door when the response signal is authenticated, generates a disturbance signal that obstructs the response request signal, and transmits the disturbance signal at least on the other side to the door It is characterized by doing.

  According to the first door control system of the present invention described above, even if the leakage signal of the response request signal from the reading device on one side is transmitted to the portable device on the other side, the interference signal interferes with the leakage signal. The signal content of the leakage signal is destroyed by the interference signal. Therefore, the portable device on the other side does not transmit a response signal to the reading device on one side according to the leakage signal, and the identification information of the portable device is not authenticated via the reading device on the one side. Therefore, even when a user who has a portable device enters the other side or when the portable device on the other side is placed near the door, the device for controlling the door is controlled in response to the portable device on the other side. Without any unauthorized entry.

  In the door control system, the interference signal may be generated as a signal in the same frequency band as the response request signal.

  Thereby, it is possible to easily generate an interference signal peculiar to the response request signal from the reading device.

  Further, the second door control system of the present invention is the above-described first door control system of the present invention, wherein the disturbance signal is switched and transmitted on either the one side or the other side, and the authentication unit Determining whether the portable device is on the one side or the other side based on the switching timing of transmission of the interference signal and the reception timing of the response signal from the portable device. And

  According to the second door control system of the present invention described above, it is possible to determine whether or not it is appropriate as a communication partner for each of the reading devices on the one side and the other side, depending on the position of the portable device. Based on this, appropriate control of the door can be performed.

  Moreover, the 3rd door control system of this invention is the 1st door control system of this invention mentioned above, The said reader is provided with the start part for starting transmission of the said response request signal, The said When it is arranged on both the one side and the other side with respect to the door and the start of the reading device on the one side or the other side is instructed to start, the reading on the one side or the other side is performed. The apparatus starts transmitting the response request signal, and starts transmitting the jamming signal on the other side or the one side.

  According to the above-described third door control system of the present invention, the door operation using the portable device can be reliably performed, while the non-operation side on one side or the other side with respect to the door (the side where the start portion is not provided). If there is a portable device on the other side, even if the start portion is instructed by the starter without holding the portable device on the other side or one operation side with respect to the door, a disturbance signal is transmitted to the non-operation side. Therefore, on the non-operation side, the portable device does not receive a response request signal from the reading device, and the reading device does not receive a response signal from the portable device. Thereby, unauthorized entry by a person who does not have a portable device can be suppressed.

  In the door control system, the start unit of the reading device may be an activation button of the reading device.

  As a result, the start button of the reading device is used to start transmission of a response request signal and an interference signal, so that the configuration can be simplified. Since the power supply is not performed without starting the reading device while the door control system is not used, energy saving and cost reduction can be realized.

  Further, in the door control system, even when the authentication unit authenticates the identification information of the response signal and the door is controlled, transmission of the response request signal and transmission of the disturbance signal are stopped. Good.

  Thereby, transmission of a response request signal and an interference signal can be suppressed to the minimum necessary.

  Further, in the door control system, the transmission of the response request signal may be started after a predetermined time has elapsed from the start of transmission of the disturbance signal.

  As a result, the effect of the interference signal can always be exhibited while the response request signal is transmitted.

  Further, in the door control system, the response request signal is composed of a pulse having a predetermined period transmitted at predetermined time intervals, and the interference signal interferes with a part of the predetermined period of the pulse. May be generated.

  As a result, the effect of the interference signal can be exhibited with the minimum necessary configuration.

  The fourth door control system of the present invention is the door control system according to any one of the first to third of the present invention described above, wherein the door control unit controls the locking and unlocking of the electric lock provided on the door. It is comprised so that it may be comprised.

  According to a fifth door control system of the present invention, in any one of the first to third door control systems of the present invention described above, the door control unit is configured to control opening and closing of the door. Features.

  According to the present invention, unexpected communication of signals used for door control is suppressed with a simple configuration.

It is a block diagram showing the outline of the door control system concerning a 1st embodiment of the present invention. It is a top view which shows typically the door control system which concerns on 1st Embodiment of this invention. It is a block diagram which shows the outline of the door control system which concerns on the further embodiment of this invention. It is a top view which shows typically the door control system which concerns on the further embodiment of this invention. It is a block diagram which shows the outline of the door control system which concerns on 2nd Embodiment of this invention. It is a block diagram which shows the outline of the door control system which concerns on the further embodiment of this invention.

  A door control system according to an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing an outline of the configuration of the door control system according to the first embodiment of the present invention, and FIG. 2 is a schematic top view of the door control system according to the first embodiment of the present invention.

  The door control system 1 of 1st Embodiment is the non-contact which memorize | stored the identification information which is unique ID, and the electric lock apparatus 2 (electric lock) which automatically locks / unlocks the door which restrict | limits the entrance / exit of a room electrically It includes portable devices 3a and 3b such as keys, and an outdoor reader 4 (reading device) and an indoor reader 5 (reading device) that read identification information from the portable devices 3a and 3b. The door control system 1 also includes a control unit 6 that controls the electric lock device 2 according to the authentication result of the identification information received by the outdoor reader 4 or the indoor reader 5. That is, the door control system 1 of the first embodiment is an electric lock system that locks and unlocks the door electric lock device 2 by authenticating identification information.

  The electric lock device 2 includes, for example, a dead bolt (not shown) and a locking / unlocking mechanism 7 including an electric actuator (not shown) for moving the dead bolt, and a drive unit 8 such as a motor for driving the electric actuator. And is configured. The dead bolt moves so as to protrude from the door tip of the door and is fixed in the strike of the door frame to lock the door so that it cannot be opened, and on the other hand, the dead bolt moves so as to be removed from the strike. The door is unlocked by being pulled in, so that the door can be opened. The electric lock device 2 is connected to the control unit 6, receives a control signal for instructing locking or unlocking from the control unit 6, and the drive unit 8 drives the electric actuator in accordance with the control signal.

  The portable devices 3a and 3b are provided with electronic parts such as an IC chip having a storage area for storing various information in a readable / writable manner. In particular, user information is used as information necessary for authentication of permission to unlock the door. Is stored in the storage area. The portable devices 3a and 3b can perform non-contact communication (short-range wireless communication) with the outdoor reader 4 and the indoor reader 5 by electromagnetic waves, magnetic field coupling, or electric field coupling, and communicate within a predetermined communication radius (communication range). Signals can be sent and received. The portable devices 3a and 3b are activated in response to a response request signal transmitted from the outdoor reader 4 or the indoor reader 5, and transmit a response signal including identification information to the outdoor reader 4 or the indoor reader 5.

  These portable devices 3a and 3b include, for example, a card-like storage medium such as an IC card provided with a passive tag that generates electric power in response to electromagnetic waves, magnetic field coupling, or electric field coupling from the outdoor reader 4 or the indoor reader 5. A remote key having an active tag to which power is supplied from a power source such as a battery may be used. The portable devices 3a and 3b are not limited to these devices as long as they can be contactlessly communicated with the outdoor reader 4 and the indoor reader 5 and can be carried by the user.

  The outdoor reader 4 and the indoor reader 5 are respectively provided on the surface of the door or the wall surface around it on the outside and inside of the room. The outdoor reader 4 and the indoor reader 5 are readers or transmission / reception devices capable of contactless communication with the portable devices 3a and 3b by electromagnetic waves, magnetic field coupling, or electric field coupling, and can communicate within a predetermined communication radius (communication range). it can. For example, the outdoor reader 4 and the indoor reader 5 transmit a response request signal for activating the portable devices 3a and 3b, and can receive a response signal from the portable devices 3a and 3b according to the response request signal. ing. For example, the outdoor reader 4 and the indoor reader 5 send, for example, a response request signal by electromagnetic waves in a predetermined frequency band (for example, 134 MHz), magnetic field coupling, or electric field coupling to the door on the outdoor side and the indoor side, respectively. And 3b are transmitted with a communication radius of 1 to 2 m. For example, the response request signal is generated with a pulse with a predetermined cycle, and the outdoor reader 4 and the indoor reader 5 transmit the pulse with the predetermined cycle at predetermined time intervals. The outdoor reader 4 and the indoor reader 5 may transmit the response request signal periodically or in response to a button operation. The outdoor reader 4 and the indoor reader 5 are connected to the control unit 6, read identification information from the response signal received from the portable device 3 a or 3 b, and transmit the identification information to the control unit 6.

  The indoor reader 5 includes an interference signal generation unit 5a that generates an interference signal that interferes with the response request signal. In order to respond to the response request signal at least indoors with respect to the door, an interference signal such as a jamming signal is provided. Send. The interference signal generation unit 5a generates an interference signal in the same frequency band as the response request signal, and the indoor reader 5 transmits the interference signal. The indoor reader 5 may transmit a disturbance signal while the outdoor reader 4 and the indoor reader 5 are transmitting a response request signal. More preferably, the indoor reader 5 transmits the disturbance signal immediately before transmitting the response request signal. The transmission of the interference signal may be stopped after the transmission of the response request signal is started. The interference request signal is invalidated by causing the interference signal generated by the interference signal generation unit 5a to interfere with the response request signal. In addition to being in the same frequency band as the response request signal, the interference signal may be a signal having a phase or peak different from that of the response request signal. For example, the jamming signal is generated so as to jam a part of a predetermined period of the response request signal pulse.

  For example, as shown in FIG. 2, the outdoor reader 4 transmits a response request signal within a predetermined transmission range R <b> 1 to correspond to the outdoor portable device 3 a with respect to the door. At this time, there is a possibility that the response request signal from the outdoor reader 4 may leak into the room without being blocked by the door or wall. When the leak signal S of the response request signal is received by the indoor portable device 3b as described above, the portable device 3b transmits a response signal to the outdoor reader 4 in accordance with the leak signal S. However, since the indoor reader 5 transmits the interference signal to the indoor transmission range R2, the interference signal interferes with the leakage signal S, and the signal content of the leakage signal S is destroyed by the interference signal. For example, an interference signal is superimposed on the leakage signal S, so that it is impossible to determine the presence or absence of the normal amplitude of the response request signal, and the pulse width cannot be determined. Therefore, even if the portable device 3b receives the leakage signal S, the leakage signal S does not have a legitimate signal content as a response request signal, so the portable device 3b transmits a response signal according to the leakage signal S. There is nothing. Therefore, even if the leak signal S of the response request signal from the outdoor reader 4 is transmitted to the indoor portable device 3b, the outdoor reader 4 does not receive the response signal from the portable device 3b and reads the identification information. Nor. The indoor reader 5 may stop transmitting the response request signal while transmitting the interference signal, and the door lock mechanism 7 of the electric lock device 2 is manually moved from the indoor side to the indoor side with respect to the door. A mechanism such as a thumb turn or key cylinder that can be locked and unlocked may be provided.

  The control unit 6 includes a control unit 10 such as a CPU (Central Processing Unit) that performs overall control of the overall operation of the door control system 1, and a storage medium such as a ROM or RAM that stores information necessary for control by the control unit 10 And a storage unit 11.

  The control unit 10 includes, for example, an authentication unit 12 and an electric lock control unit 13 (door control unit). The authentication unit 12 and the electric lock control unit 13 may be configured by a program stored in the storage unit 11 and executed by the control unit 10. Moreover, the memory | storage part 11 memorize | stores the one or more authentication information 14 used for the authentication of the identification information of the portable devices 3a and 3b, for example.

  The authentication unit 12 compares the identification information of the portable device 3a or 3b received by the control unit 10 from the outdoor reader 4 or the indoor reader 5 with the authentication information 14 stored in the storage unit 11, and authenticates that the identification information is valid. Determine if you can.

  The electric lock control unit 13 controls the electric lock device 2 in accordance with the determination result by the authentication unit 12. For example, when the identification information is authenticated as valid, a control signal for unlocking the electric lock device 2 is sent. It transmits to the electric lock device 2. In addition, the electric lock control unit 13 transmits a control signal for locking the electric lock device 2 to the electric lock device 2 when a predetermined time has elapsed since the control signal for unlocking was transmitted to the electric lock device 2. To do.

  In the first embodiment described above, an example in which the door control system 1 of the present invention is applied to an electric lock system that locks and unlocks the electric lock device 2 of the door by authenticating identification information has been described. It is not limited to examples. For example, in the second embodiment, the door control system 30 of the present invention can be applied to an automatic door system that controls opening and closing of a door (automatic door) provided in an entrance or the like. Hereinafter, the door control system 30 of the second embodiment will be described with reference to FIG. 5, but the description of the same configuration and function as those of the door control system 1 of the first embodiment shown in FIG. 1 will be omitted. To do.

  As shown in FIG. 5, the door control system 30 of the second embodiment includes, for example, a door opening and closing device 31 in addition to the portable devices 3a and 3b, the outdoor reader 4, the indoor reader 5 and the control unit 6 (control device). Prepare. Also in the second embodiment, the indoor reader 5 includes an interference signal generation unit 5a that generates an interference signal that interferes with the response request signal, as in the first embodiment. The control unit 6 of the second embodiment includes a door opening / closing control unit 32 (door control unit) that controls the door opening / closing device 31 in addition to the control unit 10, the storage unit 11, and the authentication unit 12. The door opening / closing control unit 32 may be configured by a program stored in the storage unit 11 and executed by the control unit 10.

  The identification information of the portable devices 3a and 3b is information necessary for authentication of permission to open and close the door, and the storage unit 11 authenticates identification information of the portable devices 3a and 3b permitted to open and close the door opening and closing device 31. The information 33 is stored in advance. For example, the storage unit 11 may store one or more authentication information 33 corresponding to the identification information of one or more portable devices 3a and 3b. The authentication unit 12 compares the identification information of the portable device 3a or 3b received by the control unit 10 from the outdoor reader 4 or the indoor reader 5 with the authentication information 33 stored in the storage unit 11, and the identification information is valid. It is determined whether or not it can be authenticated.

  The door opening / closing device 31 is a mechanism that is controlled by the control unit 6 (door opening / closing control unit 34) to automatically open and close the automatic door electrically. The automatic door may be configured by either a sliding door or a hinged door. In the case of a hinged door, an obstacle sensor (not shown) that detects an obstacle to the opening and closing of the automatic door is provided, and the door opening and closing device 31 opens and closes the automatic door when there is no obstacle.

  The door opening / closing control unit 32 of the second embodiment opens and closes the door (door opening / closing device 31) with respect to the electric lock control unit 23 of the first embodiment that controls locking and unlocking of the door (electric locking device 2). Although it differs in the point which controls a door and a closing, it is comprised substantially the same.

  The door opening / closing control unit 32 controls the door opening / closing device 31 according to the determination result by the authentication unit 12. For example, when the identification information is authenticated as valid, a control signal for opening the door opening / closing device 31 is given. It transmits to the door opening and closing device 31. The door opening / closing control unit 32 transmits a control signal for opening the door to the door opening / closing device 31 (when the door is opened), and a control signal for closing the door opening / closing device 31 when a predetermined time has elapsed. Is transmitted to the door opening and closing device 31.

  As described above, when the door control systems 1 and 30 according to the present embodiment authenticate the unique identification information from the portable devices 3a and 3b, the electric lock device 2 (electric lock) provided on the door or the door opening and closing is provided. It is an electric lock system or an automatic door system that controls the door by controlling the device 31. The door control systems 1 and 30 are arranged at least on the outdoor side (one side) with respect to the door, and transmit the response request signal and receive the response signal from the portable device 3a in response to the response request signal ( Reading device), the authentication unit 12 for authenticating whether the identification information of the response signal is valid, and the door by controlling the electric lock device 2 or the door opening / closing device 31 when the response signal is authenticated. Door control units such as the electric lock control unit 13 and the door opening / closing control unit 32, and the interference signal generation unit 5a of the indoor reader 5 generates an interference signal that interferes with the response request signal. The interference signal is transmitted to the door at least on the indoor side (the other side).

  For example, the door control unit is an electric lock control unit 13 configured to control locking / unlocking of the electric lock device 2 provided on the door, or door opening / closing configured to control opening / closing of the door. It is the control unit 32.

  With such a configuration, in the door control systems 1 and 30, even if the leakage signal S of the response request signal from the outdoor reader 4 is transmitted to the indoor portable device 3b, the interference signal interferes with the leakage signal S. The signal content of the leakage signal S is destroyed by the interference signal. Therefore, the portable device 3b does not transmit a response signal to the outdoor reader 4 in response to the leakage signal S, and the identification information of the portable device 3b is not authenticated via the outdoor reader 4. Therefore, even when the user having the portable device 3b enters the room indoors or when the portable device 3b is placed near the door, the device for controlling the door such as the electric lock device 2 or the door opening / closing device 31 is the indoor side. It is not controlled in response to the portable device 3b, and unauthorized entry can be prevented. In this way, it is possible to provide door control systems 1 and 30 that suppress unexpected communication of signals used for door control by the electric lock device 2 and the door opening and closing device 31 with a simple configuration.

  The interference signal generator 5a may generate an interference signal in the same frequency band as the response request signal. With such a configuration, it is possible to easily generate an interference signal peculiar to the response request signal from the outdoor reader 4.

  In the above-described embodiment, the door control systems 1 and 30 include the interference signal generation unit 5a in the indoor reader 5 to transmit an interference signal on the indoor side, and the response request signal from the outdoor reader 4 leaks to the indoor side. Although the example which suppresses the unauthorized unlocking and unauthorized opening resulting from the signal S was demonstrated, this invention is not limited to this. For example, in another embodiment, the door control systems 1 and 30 include an interference signal generation unit 5a for the outdoor reader 4 to transmit an interference signal on the outdoor side, and send a response request signal from the indoor reader 5 to the outdoor side. Unauthorized unlocking and unauthorized opening due to the leakage signal S may be suppressed.

  In the above-described embodiment, the door control systems 1 and 30 have been described with the example in which the indoor reader 5 or the outdoor reader 4 includes the interference signal generation unit 5a and transmits the interference signal indoors or outdoors. Is not limited to this. For example, in another embodiment, the door control systems 1 and 30 include interference signal generation units 4a and 5a in both the outdoor reader 4 and the indoor reader 5 (see FIGS. 3 and 6). Then, the control for simultaneously transmitting the response request signal by the outdoor reader 4 and the transmission of the interference signal by the indoor reader 5 and the control for simultaneously transmitting the interference signal by the outdoor reader 4 and the transmission of the response request signal by the indoor reader 5 are performed. Each time a response request signal is transmitted, it is switched. And the authentication part 12 of the control unit 6 is based on the switching timing of the transmission of the interference signal of the outdoor reader 4 and the indoor reader 5, and the reception timing of the response signal from the portable devices 3a and 3b. Is determined to be on the outdoor side or the indoor side.

  For example, while the indoor reader 5 is transmitting a disturbance signal, the outdoor reader 4 is receiving a response signal from the portable devices 3a and 3b, and the outdoor reader 4 is transmitting a disturbance signal. When the indoor reader 5 has not received a response signal from the portable devices 3a and 3b, the authentication unit 12 determines that the portable devices 3a and 3b are outside the room. While the outdoor reader 4 does not receive a response signal from the portable devices 3a and 3b while the indoor reader 5 is transmitting a disturbance signal, and while the outdoor reader 4 is transmitting a disturbance signal, When the indoor reader 5 receives the response signal from the portable devices 3a and 3b, the authentication unit 12 determines that the portable devices 3a and 3b are on the indoor side.

  The outdoor reader 4 and the indoor reader 5 may transmit different transmission source identification information to the response request signal in order to identify the transmission side of the response request signal. And portable device 3a, 3b adds the recognition result of transmission origin identification information to a response signal, and transmits. Thus, when the response request signal is switched and transmitted as described above, it is determined whether the response signal from the portable device 3a, 3b is a response to the response request signal of the outdoor reader 4 or the indoor reader 5. Thus, the reception timing of the response signal can be accurately determined.

  For example, the outdoor reader 4 and the indoor reader 5 add the reader information that identifies itself to the response request signal as transmission source identification information. Upon receiving the response request signal to which the reader information is added, the portable devices 3a and 3b recognize whether the response request signal is transmitted from the outdoor reader 4 or the indoor reader 5 based on the reader information. For example, reader information is added to the response signal and transmitted. When the response signals are received from the portable devices 3a and 3b within a predetermined response period for the response request signals transmitted by the outdoor reader 4 and the indoor reader 5, the outdoor reader 4 and the indoor reader 5 or the authentication unit 12 of the control unit 6 Based on the reader information of the response signal, it can be determined which of the outdoor reader 4 and the indoor reader 5 is a response to the response request signal, and the reception timing of the response signal can be accurately determined.

  Alternatively, the outdoor reader 4 and the indoor reader 5 add different encryption codes to the response request signal as transmission source identification information. The code may be set in advance in the outdoor reader 4 and the indoor reader 5 or may be randomly generated. When receiving the response request signal to which the encryption code is added, the portable devices 3a and 3b encrypt using the encryption code and the identification information of the mobile device 3a and 3b and transmit the result as a response signal. When the outdoor reader 4 and the indoor reader 5 receive the response signal from the portable devices 3a and 3b, the outdoor reader 4 and the indoor reader 5 or the authentication unit 12 of the control unit 6 decodes the response signal, and the decoding result (recognition result). ) To determine which response request signal the outdoor reader 4 or indoor reader 5 is responding to, and accurately determine the reception timing of the response signal.

  With such a configuration, it is possible to determine whether or not the outdoor reader 4 or the indoor reader 5 is appropriate as a communication partner depending on the positions of the portable devices 3a and 3b. Based on the determination result, appropriate control of the door (electrical Appropriate locking and unlocking of the locking device 2 and appropriate opening and closing of the door opening and closing device 31 can be performed. For example, when the authentication unit 12 authenticates a response signal received by the outdoor reader 4 from the portable devices 3a and 3b determined to exist outside the door, the unlocking or door opening / closing device 31 of the electric lock device 2 is used. When the response signal received by the outdoor reader 4 from the portable devices 3a and 3b determined to be present indoors is authenticated, the unlocking of the electric lock device 2 or the door opening and closing device 31 is permitted. Do not allow opening.

  In a further embodiment, as shown in FIGS. 3 and 6, the door control systems 1 and 30 have outdoor signal generators 4a and 5a in both the outdoor reader 4 and the indoor reader 5, respectively. The reader 4 and the indoor reader 5 include activation buttons 4b and 5b, respectively. By operating one of the activation buttons 4b and 5b, both the outdoor reader 4 and the indoor reader 5 are activated by receiving power supply from a built-in battery (not shown). The outdoor reader 4 and the indoor reader 5 may enter a start / stop state or a sleep state after a predetermined time has elapsed from the start, or by re-operation of the start buttons 4b and 5b or operation of a stop button (not shown). It may be in a start-stop or sleep state.

  When the outdoor reader 4 and the indoor reader 5 are activated by operating the activation button 4b or 5b, the outdoor reader 4 or the indoor reader 5 on the side (operation side) on which the activation button 4b or 5b is operated starts transmitting a response request signal. . That is, the start buttons 4b and 5b are start units for starting transmission of response request signals. When the start unit is instructed to start by operating the start buttons 4b and 5b, the response request signals are sent to the door. On the other hand, it is transmitted only to the operation side. The start unit may include a start button that starts transmission of a response request signal instead of the start buttons 4b and 5b, and the start unit is instructed to start by operating the start button. Alternatively, the start unit may be configured by a detection device such as an infrared sensor that detects the user, and the start unit is instructed to start by detection of the detection device.

  When the outdoor reader 4 and the indoor reader 5 are activated by operating the activation button 4b or 5b, the outdoor reader 4 or the indoor reader 5 on the side opposite to the operation side (non-operation side) starts transmission of the interference signal. That is, the interference signal is transmitted only to the non-operation side with respect to the door.

  With such a configuration, the door operation (unlocking operation or opening operation) using the portable device 3a or 3b can be reliably performed, while the portable device 3a or 3b is provided on the non-operating side, Even if the start button 4b or 5b is operated without the portable device 3a or 3b, an interference signal is transmitted to the non-operation side. Therefore, on the non-operation side, the portable device 3a or 3b does not receive a response request signal from the outdoor reader 4 or the indoor reader 5, and the outdoor reader 4 or indoor reader 5 receives a response signal from the portable device 3a or 3b. There is nothing. Thereby, unauthorized entry by a person who does not have the portable device 3a or 3b can be suppressed.

  For example, as shown in FIG. 4, immediately after the user who has the portable device 3b enters the room, or when the portable device 3b is left in the room, the portable device 3b is placed near the indoor reader 5 on the indoor side. There may be. In this case, when the activation button 4b of the outdoor outdoor reader 4 is operated, the outdoor reader 4 transmits a response request signal to the outdoor transmission range R3, and the indoor reader 5 transmits to the indoor transmission range R4. Send a jamming signal. Therefore, on the indoor side, even when the response request signal leaks, the normal response request signal is not received by the portable device 3b due to the interference signal, and the unlocking or opening of the door by the portable device 3b is suppressed. be able to. Further, if the portable device 3a or 3b is possessed outside, the portable device 3a or 3b transmits a response signal having identification information to the response request signal to the outdoor reader 4, so that the door is unlocked or opened. It is possible to door. On the other hand, if the portable device 3a or 3b is not possessed on the outdoor side, a response signal having identification information cannot be transmitted to the outdoor reader 4, so the door cannot be unlocked or opened, and unauthorized entry is suppressed. Become.

  Further, the response request signal is composed of pulses having a predetermined cycle transmitted at predetermined time intervals, and the interference signal may be generated so as to interfere with a part of the predetermined cycle of the pulse of the response request signal. Good. With such a configuration, it is possible to exhibit the effect of the interference signal with the minimum necessary configuration.

  In addition, since the start buttons 4b and 5b of the outdoor reader 4 and the indoor reader 5 are used to start transmission of a response request signal and an interference signal, the configuration can be simplified. Since the outdoor reader 4 and the indoor reader 5 are not activated while the door control systems 1 and 30 are not used, power is not supplied, so that energy saving and cost reduction can be realized.

  Similar to the above-described embodiment, the indoor reader 5 or the outdoor reader 4 may transmit the disturbance signal while the outdoor reader 4 or the indoor reader 5 transmits the response request signal. For example, immediately before the outdoor reader 4 or the indoor reader 5 transmits a response request signal (predetermined time), the indoor reader 5 or the outdoor reader 4 starts transmission of a disturbance signal, and the outdoor reader 4 or the indoor reader 5 receives the response request signal. After stopping the transmission (after a predetermined time), the indoor reader 5 or the outdoor reader 4 stops the transmission of the interference signal. As a result, the effect of the interference signal can always be exhibited while the response request signal is transmitted.

  When the outdoor reader 4 or the indoor reader 5 on the operation side of the start button 4b or 5b receives a response signal from the portable device 3a or 3b and the identification information of the response signal is authenticated as valid by the authentication unit 12, The lock control unit 13 controls the unlocking of the electric lock device 2, or the door opening / closing control unit 32 controls the door opening / closing device 31 to open. At this time, the outdoor reader 4 and the indoor reader 5 may stop the transmission of the response request signal and the transmission of the disturbance signal after unlocking the electric lock device 2 or opening the door opening / closing device 31. Thereby, transmission of a response request signal and an interference signal can be suppressed to the minimum necessary.

  Moreover, in 1st Embodiment, when the authentication part 12 authenticates the identification information of the portable device 3a or 3b, the electric lock control part 13 controls the electric lock apparatus 2 directly, and is used as an electric lock system. Although the structure of the door control system 1 was demonstrated, the structure of the door control system 1 as an electric lock system is not limited to this. For example, the door control system 1 as an electric lock system according to another embodiment includes an unlock button and a lock button for operating the unlock and lock of the electric lock device 2 near the door, and the authentication unit 12 is a portable device. When the identification information 3a or 3b is authenticated, the operation of the unlock button or the lock button may be validated, and in other cases, the operation of the unlock button or the lock button may be invalidated. Alternatively, the door control system 1 as an electric lock system includes an operation handle for opening the door, and enables the operation of the operation handle only when the authentication unit 12 authenticates the identification information of the portable device 3a or 3b. You may comprise as follows.

  Further, in the second embodiment, when the authentication unit 12 authenticates the identification information of the portable device 3a or 3b, the door opening / closing control unit 32 directly controls the door opening / closing device 31 to open or close the door. However, the configuration of the door control system 30 as an automatic door system is not limited to this. For example, the door control system 30 as an automatic door system according to another embodiment includes an opening button and a closing button for operating the opening and closing of the door opening and closing device 31 near the door, and the authentication unit 12 is a portable device. When the identification information 3a or 3b is authenticated, the operation of the opening button or the closing button may be validated, and in other cases, the operation of the opening button or the closing button may be invalidated.

  The door control systems 1 and 30 of the present invention are configured such that a control unit 6 having an authentication function is provided for each of a plurality of doors, and the portable devices 3a and 3b are commonly used for the doors to be unlocked or unlocked or opened and closed. You can also In addition, the door control systems 1 and 30 of the present invention include not only entrances and entrances of commercial facilities or public facilities such as hotels and office buildings, entrances and entrances of apartment houses or general houses, but also hospitals, recreational facilities, stores, It can be applied to various buildings such as shopping centers and schools.

  The present invention can be appropriately changed without departing from the spirit or concept of the invention which can be read from the claims and the entire specification, and a door control system with such a change is also a technical idea of the present invention. include.

DESCRIPTION OF SYMBOLS 1,30 Door control system 2 Electric lock device 3a, 3b Portable device 4 Outdoor reader (reading device)
5 Indoor reader (reading device)
4a, 5a Interference signal generation unit 6 Control unit 10 Control unit 11 Storage unit 12 Authentication unit 13 Electric lock control unit (door control unit)
14, 33 Authentication information 31 Door opening / closing device 32 Door opening / closing control unit (door control unit)

Claims (5)

A door control system that controls a door when authenticating unique identification information from a portable device,
A reader that is arranged on at least one side with respect to the door, transmits a response request signal, and receives a response signal from the portable device in response to the response request signal;
An authentication unit for authenticating whether the identification information of the response signal is valid;
A door control unit that controls the door when the response signal is authenticated, and
A door control system that generates a disturbance signal that obstructs the response request signal and transmits the disturbance signal at least on the other side to the door. The jamming signal is switched and transmitted on either the one side or the other side,
The authentication unit determines whether the portable device is on the one side or the other side based on a switching timing of transmission of the interference signal and a reception timing of the response signal from the portable device. The door control system according to claim 1. The reading device includes a start unit for starting transmission of the response request signal, and is disposed on both the one side and the other side with respect to the door,
When the start unit of the reading device on the one side or the other side is instructed to start, the reading device on the one side or the other side starts transmission of the response request signal, and the other side or The door control system according to claim 1, wherein transmission of the interference signal is started on the one side.   The door control system according to any one of claims 1 to 3, wherein the door control unit is configured to control locking and unlocking of an electric lock provided on the door.   The door control system according to claim 1, wherein the door control unit is configured to control opening and closing of the door.

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