JP2020111985A - Remote control device, opening/closing control system, and opening/closing control method - Google Patents

Abstract

To prevent a control signal of an opening/closing body device from being duplicated when the control signal is wirelessly transmitted.SOLUTION: When transmitting a control signal transmitted according to the operation of an operation element of a remote control device, an authentication key transmitted in advance from a remote control transceiver of opening/closing means is received, a control signal including identification information is transmitted together with the received authentication key or a newly generated authentication key. The authentication key uses a disposable one-time password which is valid only once. A challenge-response method is used to generate the one-time password. This can effectively prevent the control signal including the identification information from being duplicated. Note that at least when the remote control device transmits a control signal related to the opening operation in response to the operation of the opening operation element, the authentication key is transmitted and received. When the control signal related to the closing operation or the stopping operation is transmitted, the transmission/reception of the authentication key may be omitted.SELECTED DRAWING: Figure 4

Description

The present invention relates to a remote control device, an opening/closing control system and an opening/closing control method for controlling an opening/closing device installed in an opening such as a window or a doorway of a structure body including a building such as a house, a building, a factory, and a warehouse. In particular, the present invention relates to a remote control device, an opening/closing control system, and an opening/closing control method configured to wirelessly transmit a control signal related to the operation of the opening/closing body device.

For shutter devices such as shutters and doors that are installed in the openings of structures such as buildings, factories, and warehouses, electric shutters and electric doors that electrically perform each opening/closing operation are used. Often. As described above, the opening/closing device that electrically performs the opening/closing operation includes a wired or wireless 3-point type or 1-point type dedicated switch equipped with the 3 types of switches (operators) for the opening/closing. A predetermined opening/closing operation is executed according to the control signal of. In the case of a portable wireless dedicated switch, a plurality of wireless dedicated switches can be registered for an opening/closing device, such as a garage shutter device, which needs to be operated by a plurality of persons.

Further, in Japanese Patent Laid-Open No. 2004-242242, when the operator means, which is a dedicated switch, is connected to the child machine control means and the parent machine control means, respectively, an operator ID assigned to the operator means (specific to the operator means (Identification information) is read and stored in the slave unit control unit and the master unit control unit side, and the stored operator ID is used as a key for establishing a communication line, and is stored between the master unit control unit and the slave unit control unit. A device that establishes (pairs) a connection of a wireless communication line has been proposed. The invention described in Patent Document 1 uses the identification information (operator ID) of a small-sized operator means that is convenient to carry as a key for system construction, so that a work space for system construction is not necessary and the installation site This has an excellent effect that the slave device control means can be appropriately set to the master device control means such as the centralized communication device at the time of construction.

JP, 2016-220015, A

As the opening/closing device, there have been proposed many devices configured to be able to control the opening/closing operation by using a remote control transmission device having a built-in wireless transmitter. For example, in a garage shutter device, a wireless remote control transmitter is widely applied because it is convenient for a user to open and close the shutter without getting off the vehicle.
In the case of such a wireless remote control transmitter, a receiving antenna is attached to the wall near the garage shutter device or its storage box, and the remote control transmitter/receiver is configured to receive radio waves from the remote control transmitter. Has been done. Further, in the opening/closing control system described in Patent Document 1, the radio wave from the master control means is received by the slave unit control means (remote control transceiver) provided in the garage shutter device.

This remote controller transceiver demodulates an electric signal (for example, an ASK modulated signal or an FSK modulated signal) received and converted by a receiving antenna by a receiving unit and transmitted by an original transmitter transmitted by a remote controller transmitter or a master unit control means. The transmission signal (demodulation signal) is given to the reception control unit. The reception control unit of the remote control transmitter/receiver decodes the original transmission signal, and based on the identification information (operator ID) inserted in the signal, the remote control transmission device and the master unit control means as the transmission source of the original transmission signal It authenticates whether or not it can issue operation instructions to the remote control transceiver. After that, the shutter device is driven based on the control signal for instructing the opening operation, the closing operation, or the stopping operation of the shutter device based on the instruction content inserted in the original transmission signal. As a result, each operation of opening and closing the shutter intended by the user is executed.

In this way, when signals are transmitted from the remote control transmitter and the master unit control means to the remote controller transceiver by a wireless system, the operator ID of the remote controller transmitter may be registered in advance in the remote controller transceiver as identification information. is necessary. Based on this identification information (operator ID), the opening/closing body device authenticates whether the remote control transmitting device and the master unit control means can issue an operation instruction.

Since the remote control transmission device and the master unit control means always transmit the identification information (operator ID) of the corresponding remote control transmission device when transmitting the control signal, the remote control transmitter/receiver incorporated in the opening/closing device is Separately, a remote control transmitter/receiver is prepared, and when the remote control transmission device and the master unit control means receive the transmission signal when the control signal is transmitted, the identification information (operator ID) inserted in the transmission signal There is a risk that the control signal itself including “” will be duplicated. In this way, when the control signal including the identification information is copied by another device, it can be continuously used. Therefore, a third party who is completely unrelated to the owner of the opening/closing device, the remote controller transmitting device and the master unit control means uses another remote controller transceiver and transmitter to duplicate the control signal and It may be possible to control the opening movement. As a countermeasure against such a duplication of the control signal, it is possible to use a rolling code that changes the code in a specific pattern, but in this case, if empty transmission is performed, the operation will not be performed when actually operating the opening/closing device. It may not be possible, and it may be necessary to perform the remote control operation several times before the operation becomes possible, which may take time and effort.

The present invention has been made in view of the above points, and a remote control device, an opening/closing control system, and an opening/closing control method capable of preventing duplication of a control signal when a control signal of the opening/closing device is wirelessly transmitted. To provide.

A first feature of the remote control device according to the present invention is that the remote control device transmits a control signal related to the operation of the opening/closing means together with identification information unique to the remote control device to the remote control transceiver of the opening/closing means by the wireless system. The remote control transceiver is provided with a receiving unit for receiving a signal, and the receiving unit receives the authentication key whose value changes every time transmitted from the remote control transceiver, and receives the authentication key according to the operation of the operator of the remote control device. Then, the control signal including the identification information is transmitted together with the authentication key or the newly generated authentication key.
This is because, when transmitting a control signal transmitted in response to an operation of an operator of the remote control device, an authentication key transmitted in advance from the remote control transceiver of the opening/closing body means is received, and the received authentication key or a new authentication key is received. A control signal including identification information is transmitted together with the generated authentication key. The authentication key uses a disposable one-time password that is valid only once. It is preferable to use the challenge response method for generating the one-time password. In the challenge-response method, the value calculated by combining the authentication key sent from the remote control transceiver (authentication server) and the password held by the remote control device (client) is used as the newly generated authentication key, and the remote control transceiver ( It is a method to authenticate by returning to the (authentication server). According to this method, it is possible to effectively prevent the control signal including the identification information from being duplicated. In this case, at least when the remote control device transmits a control signal related to the opening operation according to the operation of the opening operation element, the authentication key is transmitted and received, and when the control signal related to the closing operation or the stop operation is transmitted, The transmission and reception of the authentication key may be omitted. The received authentication key may be transmitted as it is together with the control signal including the identification information.

A second feature of the remote control device according to the present invention is the remote control device according to the first feature, wherein the authentication key is transmitted to the remote control device by the remote control transceiver in response to a request from the remote control device. The remote control device that has received the authentication key transmits the control signal together with the authentication key or the newly generated authentication key.
This is because the remote control transmitter/receiver generates an authentication key in response to a request from the remote control device, transmits the generated authentication key to the remote control device, and the remote control device that receives the authentication key generates the authentication key or the newly generated authentication key. The control signal is transmitted together with the authentication key. That is, the remote control device performs a process of requesting the authentication key each time the control signal is transmitted, receiving the authentication key, and transmitting the authentication key. This can effectively prevent the control signal including the identification information from being duplicated.

A third feature of the remote control device according to the present invention is the remote control device according to the second feature, wherein the authentication key causes the opening/closing body means to end an operation corresponding to the control signal received from the remote control device. The remote control device transmitted from the remote control transmitter/receiver to the remote control device at the time of receiving the authentication key receives the authentication key from the next time onward without requesting the authentication key. Together with transmitting the control signal.
In this system, the remote controller transceiver transmits an authentication key to be used next time or later when the opening/closing body device finishes the operation corresponding to the control signal. By this, it is not necessary to request the authentication key from the next time onward, and the authentication key is requested and received by transmitting the control signal together with the authentication key transmitted at the end of the operation or the newly generated authentication key. The process can be omitted, and the control signal can be transmitted quickly without exchanging the authentication key. This can effectively prevent the control signal including the identification information from being duplicated.

A fourth feature of the remote control device according to the present invention is that in the remote control device according to the first feature, the remote control device receives the communication request signal transmitted from the remote control transceiver in the receiving means. A signal requesting the authentication key is transmitted to the remote controller transceiver, the authentication key transmitted from the remote controller transceiver is received in response to a request for the authentication key from the remote controller, and the authentication key received Alternatively, the control signal is transmitted together with the newly generated authentication key.
This relates to the case where the remote control device is composed of an in-vehicle automatic opening/closing remote control device, and the conventional in-vehicle automatic opening/closing remote control device continuously transmits the control signal including the identification information while being mounted in the vehicle. However, according to the present invention, the remote controller transmitter/receiver always sends a communication request signal, and the vehicle-mounted automatic open/close remote controller does not always send a control signal. Then, the in-vehicle automatic opening/closing remote control device that has received the communication request signal from the remote control transmitter/receiver requests the authentication key from the remote control transmitter/receiver, and receives the authentication key, so that the authentication key or the newly generated authentication key is received. The control signal is transmitted to the remote control transceiver to execute the opening operation of the opening/closing means. This can effectively prevent the control signal including the identification information from being duplicated.

A first feature of the opening/closing control system according to the present invention is that a control signal related to each operation of opening/closing of the opening/closing body means is transmitted to a transmitter/receiver of the opening/closing body means in a wireless manner together with unique identification information, and the transmission/reception is performed. In an opening/closing control system including a communication device that receives a signal from a transmitter, the communication device receives an authentication key whose value changes every time transmitted from the transceiver, and receives the authentication key or newly generates the authentication key. The control signal including the identification information is transmitted together with the generated authentication key.
As in the opening/closing control system described in Patent Document 1, the transmitter/receiver of the child device control means, the communication device of the parent device control means, and the control signal related to each operation of the opening/closing stop of the opening/closing means are uniquely identified. When wirelessly transmitting with information, the communication device receives the authentication key whose value changes each time transmitted from the transceiver, and controls including the identification information together with the received authentication key or the newly generated authentication key. It is designed to transmit a signal. This can effectively prevent the control signal including the identification information from being duplicated. The authentication key uses a disposable one-time password that is valid only once. It is preferable to use the above-mentioned challenge response method for generating the one-time password. According to this method, it is possible to effectively prevent the control signal including the identification information from being duplicated. In this case, at least when the communication device transmits the control signal related to the opening operation, the authentication key transmission/reception is performed, and when the control signal related to the closing operation or the stop operation is transmitted, the transmission/reception of the authentication key is omitted. Good.

A second feature of the opening/closing control system according to the present invention is the opening/closing control system according to the first feature, wherein the authentication key is transmitted to the communication device by the transceiver in response to a request from the communication device. The communication device having received the authentication key transmits the control signal together with the authentication key or the newly generated authentication key.
This is because the transceiver generates an authentication key in response to a request from the communication device, sends the generated authentication key to the communication device, and the communication device that receives the authentication key sends the authentication key or the newly generated authentication key. A control signal is transmitted together with this. That is, the communication device performs a process of requesting the authentication key each time the control signal is transmitted, receiving the authentication key, and transmitting the authentication key. This can effectively prevent the control signal including the identification information from being duplicated.

A third feature of the opening/closing control system according to the present invention is the opening/closing control system according to the second feature, wherein the authentication key performs an operation corresponding to the control signal received from the communication device. Is completed, the communication device, which is transmitted from the transceiver to the communication device and receives the authentication key, does not request the authentication key from the next time onward, and the authentication key or a newly generated authentication. It is to send the control signal together with the key.
This is because when the communication device requests the authentication key when transmitting the control signal, and when it receives and transmits the authentication key, the authentication to be used from the next time onward when the opening/closing device finishes the operation corresponding to the control signal. The key is transmitted and received by the transceiver. By this, it is not necessary to request the authentication key from the next time onward, and the authentication key is requested and received by transmitting the control signal together with the authentication key transmitted at the end of the operation or the newly generated authentication key. The process can be omitted, and the control signal can be transmitted quickly without exchanging the authentication key. This can effectively prevent the control signal including the identification information from being duplicated.

A fourth feature of the opening/closing control system according to the present invention is that, in the opening/closing control system according to the first feature, the communication device that receives the signal of the communication request transmitted from the transceiver is the authentication. A signal requesting a key is transmitted to the transceiver, the authentication key transmitted from the transceiver is received in response to the request for the authentication key from the communication device, and the received authentication key or a newly generated authentication key is received. And transmitting the control signal together with the authentication key.
This is related to the case where the communication device is configured by an in-vehicle automatic opening/closing remote control device, and the communication device configured by the conventional in-vehicle automatic opening/closing remote control device is a control device that always includes identification information when mounted in the vehicle. Although the signal is continuously transmitted, in the present invention, the transmitter/receiver of the opening/closing means always transmits the signal of the communication request, and the communication device does not constantly transmit the control signal. Then, the communication device, which has received the signal of the communication request from the transceiver of the opening/closing means, requests the authentication key to the transceiver of the opening/closing means, and receives the authentication key to obtain the authentication key or the newly generated authentication. A control signal is transmitted to the transmitter/receiver of the opening/closing body means together with the key to execute the opening operation of the opening/closing body means. This can effectively prevent the control signal including the identification information from being duplicated.

A first feature of the opening/closing control method according to the present invention is that, using a communication device, a control signal regarding each operation of opening/closing of the opening/closing body unit and a transceiver of the opening/closing body unit are wirelessly combined with unique identification information. In the opening/closing control method for controlling the opening/closing operation of the opening/closing body means by transmitting to the communication device, the communication device receives an authentication key whose value changes every time transmitted from the transceiver, and receives the authentication key or It is to transmit a control signal including the identification information together with a newly generated authentication key.
This is an invention of an opening/closing control method corresponding to the first feature of the opening/closing control system.

A second feature of the opening/closing control method according to the present invention is the opening/closing control method according to the first feature, wherein the authentication key is transmitted to the communication device by the transceiver in response to a request from the communication device. The communication device having received the authentication key transmits the control signal together with the authentication key or the newly generated authentication key.
This is an invention of an opening/closing control method corresponding to the second feature of the opening/closing control system.

A third feature of the opening/closing control method according to the present invention is the opening/closing control method according to the second feature, wherein the authentication key performs an operation corresponding to the control signal received from the communication device. Is completed, the communication device, which is transmitted from the transceiver to the communication device and receives the authentication key, does not request the authentication key from the next time onward, and the authentication key or a newly generated authentication. It is to send the control signal together with the key.
This is an invention of an opening/closing control method corresponding to the third feature of the opening/closing control system.

A fourth feature of the opening/closing control method according to the present invention is that, in the opening/closing control method according to the first feature, the communication device that receives the signal of the communication request transmitted from the transceiver is the authentication. A signal requesting a key is transmitted to the transceiver, the authentication key transmitted from the transceiver is received in response to the request for the authentication key from the communication device, and the received authentication key or a newly generated authentication key is received. And transmitting the control signal together with the authentication key.
This is an invention of an opening/closing control method corresponding to the fourth feature of the opening/closing control system.

According to the remote control device, the opening/closing control system, and the opening/closing control method of the present invention, it is possible to prevent the control signal from being duplicated when the control signal of the opening/closing body device is wirelessly transmitted.

It is a figure which shows the external appearance of the shutter apparatus provided with the opening/closing body apparatus of this invention. FIG. 2 is a partial perspective view of the opening/closing body device of FIG. 1 seen from the front. It is a figure which shows the outline of the control system of the opening/closing body apparatus which concerns on this invention. It is a flowchart figure which shows an example of the transmission/reception process which a remote control device and a remote control transceiver perform. FIG. 6 is a flowchart showing another example of transmission/reception processing executed by the remote control device and the remote control transceiver of FIG. 4. It is a flowchart figure which shows the detail of the process of step S47 of FIG. 4 or step S58 of FIG. It is a flowchart figure which shows an example of the transmission/reception process which the vehicle-mounted automatic opening/closing remote control apparatus and remote control transceiver set to the automatic opening/closing mode.

Preferred embodiments of a remote control device, an opening/closing control system, and an opening/closing control method according to the present invention will be described below with reference to the accompanying drawings. In this embodiment, as an opening/closing device controlled by the opening/closing control system, a shutter device that is controlled to be opened/closed up and down with the upper direction being the opening direction and the lower direction being the closing direction will be described as an example.

FIG. 1 is a view showing the outer appearance of a shutter device including the opening/closing body device of the present invention. FIG. 2 is a partial perspective view of the opening/closing body device of FIG. 1 as seen from the front. FIG. 3 is a diagram showing an outline of a control system for an opening/closing body apparatus according to the present invention. Usually, the shutter device is provided in the opening of a structure such as a building or a garage, and basically, the shutter case 1, the shutter curtain 2, the guide rails 3, 4, the remote control device 5, and the photoelectric sensors 6, 7 are used. Composed.

The guide rails 3 and 4 are provided at both ends of the opening of the building so as to contact both ends of the shutter curtain 2, and a guide groove having a U-shaped cross-section extending from the lintel to the floor is provided. It is composed of a metal member. The shutter curtain 2 ascends and descends along the guide grooves of the guide rails 3 and 4 to open and close the opening. A winding shaft 11 is rotatably provided in the shutter case 1, and the shutter curtain 2 is wound and unwound on the winding shaft 11. Further, a motor 13 is provided in the shutter case 1, and the take-up shaft 11 is rotated by the rotational driving force of the motor 13 to control the opening/closing operation of the shutter curtain 2.

As shown in FIG. 2, in the shutter case 1, a winding shaft 11, a chain 12, a motor 13, a position detection device 14, and a shutter opening/closing device control device 15 are provided. The winding shaft 11 is rotatably provided in the shutter case 1, and winds or rewinds the shutter curtain 2. The chain 12 connects the main sprocket provided on the rotary shaft of the motor 13 and the driven sprocket provided on the rotary shaft of the winding shaft 11. Therefore, the rotational driving force of the motor 13 is transmitted to the winding shaft 11 side through the chain 12, and when the motor 13 rotates, the winding shaft 11 rotates through the chain 12 and the opening/closing operation of the shutter curtain 2 is controlled. It is supposed to be done.

The motor 13 is provided with a position detection device 14 for detecting its rotational position, that is, the open/close position and the open/closed state of the shutter curtain 2. The position detecting device 14 is composed of a pulse-generating rotary encoder or the like. Since a pulse signal corresponding to the rotation of the motor 13 is output to the shutter opening/closing controller 15, the pulse is generated at the rotational position of the motor 13, the position at the opening of the front end of the shutter curtain 2 on the closing side, and the operating state. The shutter opening/closing device control device 15 calculates the value based on the situation.

The shutter opening/closing device control device 15 has a microcomputer configuration and is supplied with electric power via a power supply line (not shown). The shutter opening/closing device control device 15 receives a control signal corresponding to the operation state of each operation switch on the remote control device 5 by the remote control transceiver, and controls the rotation of the motor 13 based on the control signal.

The remote control transceiver 21 is connected to the remote control device 5 in a predetermined frequency band (for example, 426 or 429 [MHz]). At this time, the remote control device 5 performs bidirectional communication with the remote control transmitter/receiver 21, and communicates via an authentication key (for example, a 6-digit number) that becomes a one-time password whose value changes each time communication connection is made. The state is to be established.

That is, the conventional remote control device only performs transmission, and the remote control transceiver 21 establishes a communication state based on the operator ID transmitted from the remote control device. On the other hand, the remote control device 5 according to the present embodiment is provided with a communication device that performs bidirectional communication with the remote control transceiver 21, and a one-time password whose value changes each time communication connection is made. The communication state is established based on the authentication key. This authentication key uses a disposable one-time password that is valid only once. The challenge-response method is used to generate the one-time password. It is preferable to use the challenge response method for generating the one-time password. In the challenge-response method, a value calculated by combining an authentication key sent from the remote control transceiver 21 and a password held by the remote control device 5 is returned to the remote control transceiver 21 as a newly generated authentication key for authentication. Is a method of performing.

Therefore, since the remote control device 5 has the open switch 5a for opening, the stop switch 5b for stopping, and the close switch 5c for closing, it corresponds to the operating states of the respective switches 5a to 5c for opening and closing. The above-mentioned authentication key is simultaneously output to the remote control transceiver 21 of the shutter opening/closing controller 15 together with the control signals related to each operation of opening/closing. The shutter open/close controller 15 executes the operation based on the control signal from the remote controller 5 by receiving the control signal including the authentication key.

The photoelectric sensors 6 and 7 are obstacle detection devices used for confirming the passing state of people and automobiles and the presence of objects and the like, and are provided at the lower left and right ends of the opening. In addition, in the figure, it is provided at one of the predetermined positions before and after the opening, but it may be provided both before and/or above the opening. The photoelectric sensor 6 is composed of a prismatic projector support member, and the photoelectric sensor 7 composed of a light receiver support member of the same shape is provided on the opposite side so as to form a pair. These photoelectric sensors 6 and 7 are arranged apart from each other by a distance corresponding to the longitudinal dimension of the seat plate of the shutter curtain 2 or the lateral width dimension of the opening.

The photoelectric sensor 6 supports a light projector 6a including a light emitting element that emits light such as infrared rays. On the other hand, the photoelectric sensor 7 supports a light receiver 7a including a light receiving element that senses the light itself. The light projector 6a of the photoelectric sensor 6 and the light receiver 7a of the photoelectric sensor 7 are arranged to face each other, and form an optical path 8 of a light beam for object detection that runs along the seat plate at a position below the opening. When the photoelectric sensors 6 and 7 detect a person or an object (automobile) in the optical path 8, the detection signal is transmitted to the shutter open/close controller 15 by the switching mechanism of the photoelectric sensor amplifiers 6b and 7b. In FIG. 1, the optical path 8 schematically shows the object sensing area of the photoelectric sensors 6 and 7.

FIG. 4 is a flowchart showing an example of transmission/reception processing executed by the remote control device and the remote control transceiver. The conventional remote control device performs only transmission, but the remote control device 5 according to this embodiment has a built-in communication device that performs bidirectional communication with the remote control transceiver 21. The communication state is established by transmitting and receiving an authentication key (for example, a 6-digit number) that becomes a one-time password whose value is changed each time connection is made. In FIG. 4, the processing performed by the remote control device 5 is shown on the right side, and the processing performed by the remote control transceiver 21 is shown on the left side.

In step S41, the remote control device 5 transmits a control signal for requesting an authentication key to the remote control transceiver 21 via the communication line 1a in response to the operation of each of the switches 5a to 5c in the open/close state.
In step S42, the remote controller transceiver 21 determines whether the identification information (operator ID) included in the control signal from the remote controller device 5 received via the communication line 1a matches the ID registered in the remote controller transceiver 21. Whether or not they match (yes), the process proceeds to the next step S43, and if they do not match, the process immediately returns.

In step S43, the remote control transmitter/receiver 21 generates an authentication key which is a one-time password, and transmits it to the remote control device 5 via the communication line 1b. Since this one-time password becomes invalid within about 10 to 30 seconds, the remote control device 5 that has received this authentication key must send a control signal together with the authentication key within this predetermined time.

In step S44, the remote control device 5 determines whether or not the authentication key is received from the remote control transmitter/receiver 21, and if received (yes), the process proceeds to the next step S45, and if not received, the reception confirmation is performed. The process of is repeatedly executed.
In step S45, the remote control device 5 transmits a control signal (operation signal) corresponding to the operation switch together with the proper identification information (operator ID) and the authentication key to the remote control transceiver 21 via the communication line 1c. The remote control device 5 transmits the value calculated by combining the authentication key received via the communication line 1b and the password that the remote control device 5 has in advance as a newly generated authentication key. That is, the remote control device 5 generates an authentication key of the one-time password by the challenge response method.

In step S46, the remote control transmitter/receiver 21 determines that the identification information (operator ID) and the authentication key included in the control signal from the remote control device 5 received via the communication line 1c have the ID and step registered in the remote controller transceiver 21. It is determined whether or not it matches the authentication key generated in S43. If they match (yes), the process proceeds to the next step S47, and if they do not match, the process immediately returns. Here, the matching of the authentication keys means that the authentication key generated by the remote control device 5 by the challenge response method is correct. If the remote control device 5 has a different password in advance, the authentication keys do not match and communication is not established.

In step S47, the remote control transmitter/receiver 21 executes processing of each operation of opening/closing stop corresponding to the received operation signal.
In step S48, it is determined whether or not the processing of each operation of opening and closing has been completed. If it is completed (yes), the process proceeds to step S49, and if not completed (no), the process returns to step S47 to perform the operation. The processing corresponding to the signal is continued.
In step S49, the remote control transmitter/receiver 21 transmits an operation end signal indicating that the process corresponding to the operation signal has ended to the remote control device 5 via the communication line 1d.

In the process of FIG. 4, when each of the switches 5a to 5c of the opening/closing stop of the remote control device 5 is operated, when a control signal regarding each operation of the opening/closing stop corresponding to the operation state is transmitted to the remote control transceiver 21. , A process of generating and transmitting an authentication key to be a one-time password is executed, but when the stop switch 5b and the close switch 5c of the remote control device 5 are operated, the authentication key is not generated, When it is determined that the operator IDs match, the process relating to the stop operation or the closing operation corresponding to the operation state may be directly executed. That is, the series of processes in FIG. 4 may be executed only when the open switch 5a of the remote control device 5 is operated.

FIG. 5 is a flowchart showing another example of transmission/reception processing executed by the remote control device and the remote control transceiver of FIG. In the embodiment of FIG. 4, if the identification information (operator ID) included in the control signal received via the communication line 1a matches, the authentication key can be received from the remote control transceiver 21. Therefore, another remote controller transceiver that is not related to the remote controller transceiver 21 is prepared, and when the remote controller device 5 transmits the control signal, the transmission signal is received and the identification information inserted in the transmission signal is received. If the (operator ID) and the password that the remote control device 5 has in advance can be duplicated, a suspicious person or the like unrelated to the control of the opening/closing body device may illegally control the opening/closing body device.

Therefore, in the embodiment shown in FIG. 5, even if the operator ID or the like is duplicated, a suspicious person or the like cannot execute bidirectional communication using the authentication key. That is, in the embodiment of FIG. 5, the authentication key used in the next communication is transmitted to the remote control device 5 in advance together with the operation end signal indicating that the process corresponding to the operation signal is completed, and next time the authentication key and the authentication key are transmitted. By transmitting the identification information (operator ID), the bidirectional communication is established with the remote control transceiver 21. The details of the flowchart of FIG. 5 will be described below.

In step S50, the remote control device 5 determines whether or not the registration switch is in the ON state. If the registration switch is in the ON state (yes), the process proceeds to the next step S51, and if not (no), the process jumps to step S56. The registration switch is provided, for example, on a surface such as a side surface of the remote control device 5, is operated when initializing the authentication key, and is in an off state during other normal operations.

On the other hand, in step S51, the remote control transceiver 21 determines whether or not the dip switch DSWK is "1", and if "1" (yes), the process proceeds to the next step S52, otherwise (no). If so, jump to step S55. The DIP switch DSWK is set to "1" when initially setting the authentication key in the remote control device 5, and is set to "0" in other normal operations.
Therefore, when the remote control device 5 does not store the authentication key, the registration switch of the remote control device 5 is set to the ON state, and further, the dip switch DSWK of the remote control transceiver 21 is set to "1", and the remote control device 5 is set. It is necessary to perform the initial setting of the authentication key to 5. That is, the remote control device 5 which has not been initialized cannot be connected to the remote control transceiver 21.

In step S52, the remote control device 5 transmits a control signal for requesting the authentication key to the remote control transceiver 21 via the communication line 2a in response to the operation of any of the switches 5a to 5c that are open or closed. ..
In step S53, the remote control transceiver 21 determines whether the identification information (operator ID) included in the control signal from the remote control device 5 received via the communication line 2a matches the ID registered in the remote control transceiver 21. Whether or not they match (yes), the process proceeds to the next step S54, and if they do not match, the process immediately returns.

In step S54, the remote control transmitter/receiver 21 generates an authentication key to be used next time and transmits it to the remote control device 5 via the communication line 2b. This authentication key is transmitted by the remote control device 5 together with the operation signal including the operator ID from the next time onward, and the remote controller transceiver 21 that has received the operation signal including the operator ID together with this authentication key will give a predetermined signal corresponding to the operation signal. Perform the operation of.

In step S55, the remote control device 5 determines whether or not the authentication key is received from the remote control transceiver 21, and if received (yes), the process proceeds to the next step S56, and if not received, the reception confirmation is performed. The process of is repeatedly executed. If this authentication key cannot be received, the remote control device 5 cannot be connected to the remote control transceiver 21.

In step S56, the remote control device 5 transmits a control signal (operation signal) corresponding to the operation switch together with the proper identification information (operator ID) and the authentication key to the remote control transceiver 21 via the communication line 2c. The remote control device 5 transmits the value calculated by combining the authentication key received via the communication line 2b and the password that the remote control device 5 has in advance as a newly generated authentication key. That is, the remote control device 5 generates an authentication key of the one-time password by the challenge response method.

In step S57, the remote control transmitter/receiver 21 determines that the identification information (operator ID) and the authentication key included in the control signal from the remote control device 5 received via the communication line 2c have the operator ID registered in the remote controller transceiver 21. Then, it is determined whether or not it matches the authentication key. If they match (yes), the process proceeds to the next step S58, and if they do not match, the process immediately returns. Here, the matching of the authentication keys means that the authentication key generated by the remote control device 5 by the challenge response method is correct. If the remote control device 5 has a different password in advance, the authentication keys do not match and communication is not established.

In step S58, the remote control transmitter/receiver 21 executes processing of each operation of opening/closing stop corresponding to the received operation signal.
In step S59, it is determined whether or not the processing of each operation of opening and closing has been completed, and when it is completed (yes), the process proceeds to step S5A, and when it is not completed (no), the process returns to step S58 and the operation is performed. The processing corresponding to the signal is continued.
In step S5A, the remote control transmitter/receiver 21 transmits the next authentication key to the remote control device 5 via the communication line 2d together with the operation end signal indicating that the process corresponding to the operation signal has ended.

In step S5B, the remote control device 5 records the authentication key received via the communication line 2d, and in the next process of step S56, the normal identification information (operator ID) and the authentication key together with the operation switch. The control signal (operation signal) corresponding to is transmitted to the remote control transceiver 21 via the communication line 2c. As a result, from the next time onward, bidirectional communication will be established based on the authentication key issued when the processing corresponding to the operation signal is completed and the newly generated authentication key. Since the authentication key cannot be obtained even if the copy is duplicated, a suspicious person or the like unrelated to the control of the opening/closing device cannot illegally control the opening/closing device.

In step S5C, the remote control transmitter/receiver 21 sequentially records the history of processing corresponding to the operation signal of step S58. By viewing this history, it is possible to confirm when and what operation the remote control device 5 has performed, and it is possible to discover an opening/closing operation using an unauthorized remote control device.

In the above-described embodiment, the case where the authentication key is initially set in steps S51 to S55 has been described, but the password used in the challenge response method in the initial setting process is the remote control transceiver 21 and the remote control device 5. Both may be set or changed. Further, when the communication connection is established, the passwords of both the remote control transceiver 21 and the remote control device 5 may be automatically and periodically changed.

FIG. 6 is a flowchart showing details of the processing in step S47 of FIG. 4 or step S58 of FIG. That is, FIG. 6 shows a case where the identification information (operator ID) and the authentication key included in each control signal transmitted from the remote control device 5 match the operator ID and the authentication key registered in the remote control transceiver 21. FIG. 8 is a flowchart showing an example of processing executed by the shutter opening/closing control apparatus on the basis of the control signal, and shows processing executed by the shutter opening/closing control apparatus 15 which has received control signals regarding each operation of opening/closing.

In step S61, it is determined whether or not the signal received by the remote control transceiver 21 is a stop signal corresponding to the operation of the stop switch 5b, and if the stop signal is received (yes), the process proceeds to the next step S62, and other than the stop signal. In the case of (no), the process proceeds to step S64.
In step S62, it is determined whether or not the current operation of the shutter curtain 2 is the opening/closing operation (stop). If the opening/closing operation is being performed (yes), the process proceeds to the next step S63, and if it is being stopped (no). Will return.
In step S63, since the shutter curtain is being opened and closed, the operation is stopped and the process returns. Note that, here, the movement of the shutter curtain 2 during the opening operation is referred to as the forward movement, and the movement during the closing operation is referred to as the backward movement.

In step S64, it is determined whether or not the signal received by the remote control transceiver 21 is the open signal corresponding to the operation of the open switch 5a. If the open signal is received (yes), the process proceeds to the next step S65 to open. When the signal is other than the signal (no), the process proceeds to step S68.
In step S65, it is determined whether or not the current operation of the shutter curtain 2 is the closing operation (opening operation or stopped). If the closing operation is in progress (yes), the process proceeds to the next step S66, and the opening operation is in progress. Alternatively, if it is stopped (no), the process proceeds to step S67.

In step S66, since it is determined in step S65 that the closing operation is being performed, the closing operation is stopped, the opening operation is started after the closing operation is stopped, and the process returns.
In step S67, since it is determined in step S65 that the opening operation is being performed, the opening operation is continued as it is, and if it is stopped, the opening operation is started and the process returns.

In step S68, it is determined whether or not the signal received by the remote controller transceiver 21 is a closed signal corresponding to the operation of the closing switch 5c. If the signal is a closing signal (yes), the process proceeds to the next step S69, and the closing signal is closed. Otherwise (no) returns.
In step S69, it is determined by the photoelectric sensors 6 and 7 whether or not a person or an object (automobile) is in a sensing state. If the sensing state (yes), the process proceeds to step S65, and if the sensing state is not (no), step S6A. Proceed to.

In step S6A, it is determined whether or not the current operation of the shutter curtain 2 is the opening operation (closing operation or stop). If the opening operation is in progress (yes), the process proceeds to step S6C, and the closing operation or stop operation is performed. In the case of medium (no), the process proceeds to step S6B.
In step S6B, if the closing operation is in progress, the closing operation is continued as it is, and if it is stopped, the closing operation is started and the process returns.
In step S6C, since the opening operation is being performed, the opening operation is stopped, the closing operation is started after the opening operation is stopped, and the process returns.

In the above-described embodiment, the case where the remote control device 5 is a three-point type switch has been described, but also in the case of a one-point type remote control device or the like, when the control signal is similarly transmitted to the remote control transceiver, the authentication key acquired in advance is used. It suffices to transmit a control signal including the.

Recently, there is a vehicle-mounted automatic opening/closing remote control device capable of controlling the operation of a vehicle opening/closing device (garage shutter device) by being inserted into a USB or power socket of a vehicle. This in-vehicle automatic opening/closing remote control device has a built-in wireless transmitter, and continuously transmits a control signal similar to that of the remote control device 5 at random timing, and the garage shutter device receiving the control signal controls the opening/closing operation. Is configured to. Therefore, the user can control the opening and closing of the garage shutter device without getting out of the vehicle and operating the open/close switch, which is very convenient.

On the other hand, since this on-vehicle automatic opening/closing remote control device continuously transmits the control signal including the operator ID while being plugged into the USB or power socket of the vehicle, it duplicates the control signal including the operator ID. There is a risk of being destroyed. Therefore, the in-vehicle automatic opening/closing remote control device is also provided with a receiving function as in the above-described embodiment, and the remote controller transceiver 21 in the garage shutter device periodically sends a communication request signal to the in-vehicle automatic opening/closing remote control device. When the vehicle-mounted automatic opening/closing remote control device receives the signal from the remote-control transceiver 21, the remote-control transceiver 21 transmits the authentication key to the vehicle-mounted automatic opening/closing remote control device.

FIG. 7 is a flowchart showing an example of transmission/reception processing executed by the vehicle-mounted automatic opening/closing remote controller and the remote controller transceiver set in the automatic opening/closing mode.
In step S70, the remote control transmitter/receiver 21 in the garage shutter device periodically transmits a communication request to the on-vehicle automatic opening/closing remote control device via the communication line 3a.
In step S71, it is determined whether or not a communication request from the remote controller transceiver 21 is received. If received (yes), the process proceeds to the next step S72, and if not received (no), the process returns.

In step S72, the in-vehicle automatic opening/closing remote controller receives the communication request from the remote controller transceiver 21, and therefore transmits the control signal for requesting the authentication key to the remote controller transceiver 21 via the communication line 3b.
In step S73, the remote control transceiver 21 determines that the identification information (operator ID) included in the control signal from the in-vehicle automatic opening/closing remote control device received via the communication line 3b matches the ID registered in the remote control transceiver 21. Whether or not to perform is determined. If they match (yes), the process proceeds to the next step S74, and if they do not match, the process immediately returns.

In step S74, the remote control transmitter/receiver 21 generates an authentication key which is a one-time password, and transmits it to the in-vehicle automatic opening/closing remote control device via the communication line 3c. Since this one-time password becomes invalid within about 10 to 30 seconds, the vehicle-mounted automatic opening/closing remote control device that has received this authentication key must send a control signal together with the authentication key within this predetermined time.

In step S75, the in-vehicle automatic opening/closing remote controller determines whether or not the authentication key is received from the remote controller transceiver 21, and if received (yes), proceeds to next step S76, and if not received, This reception confirmation process is repeatedly executed.
In step S76, the in-vehicle automatic opening/closing remote control device transmits the control signal (operation signal) corresponding to the opening operation together with the proper identification information (operator ID) and the authentication key to the remote control transceiver 21 via the communication line 3d. .. The in-vehicle automatic opening/closing remote control device transmits a value calculated by combining the authentication key received via the communication line 3c and the password that the in-vehicle automatic opening/closing remote control device has in advance as a newly generated authentication key. That is, the on-vehicle automatic opening/closing remote control device generates an authentication key of the one-time password by the challenge response method.

In step S77, the remote control transmitter/receiver 21 determines that the identification information (operator ID) and the authentication key included in the control signal from the in-vehicle automatic opening/closing remote controller received via the communication line 3d have been registered in the remote controller transceiver 21. It is determined whether or not the ID and the authentication key generated in step S74 match. If they match (yes), the process proceeds to the next step S78, and if they do not match, the process immediately returns. Here, the matching of the authentication keys means that the authentication key generated by the in-vehicle automatic opening/closing remote control device by the challenge response method is correct. If the in-vehicle automatic opening/closing remote controller has a different password in advance, the authentication keys do not match and communication is not established.

In step S78, the remote control transmitter/receiver 21 executes the process of the opening operation corresponding to the received opening operation signal.
In step S79, it is determined whether or not the processing of the opening operation is completed. If it is completed (yes), the process proceeds to step S80, and if it is not completed (no), the process returns to step S78 and the opening operation signal is output. Continue the corresponding processing.
In step S80, the remote controller transceiver 21 transmits an operation end signal indicating that the process corresponding to the open operation signal has ended to the in-vehicle automatic opening/closing remote controller via the communication line 3e.

The transmission/reception processing of FIG. 7 shows an example when the in-vehicle automatic opening/closing remote control device is set to the automatic opening/closing mode. Even if the remote control transceiver 21 requests communication, if there is no response from the in-vehicle automatic opening/closing remote control device, the in-vehicle automatic opening/closing remote control device is in an off state, or a place where radio waves from the remote control transceiver 21 cannot reach. In this case, the closing operation of the garage shutter device is executed because it corresponds to any one of the moving state. When the on-vehicle automatic opening/closing remote control device is set to the operation mode using the normal opening/closing stop switch, the transmission/reception process of FIG. 4 or 5 is executed.

In the above embodiments, the challenge-response method has been described as a method of generating/sharing the one-time password, but a method using SMS of the mobile phone, a time synchronization method, matrix authentication, or the like may be used.
In addition, when sending the authentication key, one or more authentication keys may be sent, and when sending multiple authentication keys, the first one of them or the one in a specific order is used, It may be used randomly.
In the above-described embodiment, the shutter curtain that is extended and lowered is described as an example, but the same applies even if the shutter-like opening and closing member is extended in a horizontal pulling manner or is extended in a horizontal manner. Can be applied to. Further, as the opening/closing body device, for example, a shutter device, an overhead door, a window shutter device, a blind device, a roll screen device, a hanging device, a sliding door device, a moving partition device, an awning device, a waterproof plate device, etc. can be applied. ..

DESCRIPTION OF SYMBOLS 1... Shutter case 11... Winding shaft 12... Chain 13... Motor 14... Position detection device 15... Shutter opening/closing control device 2... Shutter curtain 21... Remote control transceiver 3, 4... Guide rail 5... Remote control device 5a... Open switch 5b... Stop switch 5c... Closed switch 6, 7... Photoelectric sensor 6a... Emitter 7a... Photoreceiver 6b, 7b... Photoelectric sensor amplifier 8... Optical path

Claims (12)

In a remote control device for transmitting a control signal related to the operation of the opening/closing member means to a remote controller transceiver of the opening/closing member means by wireless with identification information unique to the remote controller device,
The remote control transmitter/receiver is provided with receiving means for receiving a signal, and the authentication key transmitted from the remote control transmitter/receiver whose value changes each time is received by the receiving means to operate an operator of the remote control device. In response, a control signal including the identification information is transmitted together with the authentication key or a newly generated authentication key. The remote control device according to claim 1, wherein the authentication key is transmitted to the remote control device by the remote control transceiver in response to a request from the remote control device, and the remote control device that receives the authentication key is the authentication key. Alternatively, a remote control device that transmits the control signal together with a newly generated authentication key. The remote control device according to claim 2, wherein the authentication key is transmitted from the remote control transceiver to the remote control device at the time when the opening/closing member means completes an operation corresponding to the control signal received from the remote control device. The remote control device that has received the authentication key transmits the control signal together with the authentication key or a newly generated authentication key without requesting the authentication key from the next time onward. 2. The remote control device according to claim 1, wherein the remote control device which has received the communication request signal transmitted from the remote control transceiver by the receiving means transmits a signal requesting the authentication key to the remote control transceiver. Then, in response to the request for the authentication key from the remote controller, the authentication key transmitted from the remote controller transceiver is received, and the control signal is transmitted together with the received authentication key or the newly generated authentication key. A remote control device characterized in that Opening/closing control provided with a communication device that wirelessly transmits a control signal related to each opening/closing operation of the opening/closing means to the transceiver of the opening/closing means together with unique identification information and receives a signal from the transceiver. In the system,
The communication device receives an authentication key whose value changes each time transmitted from the transceiver, and transmits a control signal including the identification information together with the received authentication key or a newly generated authentication key. A characteristic opening/closing control system. The opening/closing control system according to claim 5, wherein the authentication key is transmitted to the communication device by the transceiver in response to a request from the communication device, and the communication device that receives the authentication key is the authentication key. Alternatively, the opening/closing control system is characterized in that the control signal is transmitted together with a newly generated authentication key. 7. The opening/closing control system according to claim 6, wherein the authentication key is transmitted from the transceiver to the communication device at the time when the opening/closing body unit ends the operation corresponding to the control signal received from the communication device. The opening/closing control system, wherein the communication device that receives the authentication key transmits the control signal together with the authentication key or a newly generated authentication key without requesting the authentication key from the next time onward. .. The opening/closing control system according to claim 5, wherein the communication device that has received the communication request signal transmitted from the transceiver transmits a signal requesting the authentication key to the transceiver, and the communication device. Opening and closing, characterized in that the authentication key transmitted from the transceiver is received in response to a request for the authentication key from, and the control signal is transmitted together with the received authentication key or a newly generated authentication key. Control system. A communication device is used to control the opening/closing operation of the opening/closing body means by transmitting a control signal regarding each operation of opening/closing of the opening/closing body means to the transceiver of the opening/closing body means by a wireless method together with unique identification information. In the opening and closing control method,
The communication device receives an authentication key whose value changes each time transmitted from the transceiver, and transmits a control signal including the identification information together with the received authentication key or a newly generated authentication key. A characteristic opening/closing control method. The opening/closing control method according to claim 9, wherein the authentication key is transmitted to the communication device by the transceiver in response to a request from the communication device, and the communication device that receives the authentication key is the authentication key. Alternatively, the opening/closing control method is characterized in that the control signal is transmitted together with a newly generated authentication key. The opening/closing control method according to claim 10, wherein the authentication key is transmitted from the transceiver to the communication device when the opening/closing body unit ends an operation corresponding to the control signal received from the communication device. The communication device that has received the authentication key transmits the control signal together with the authentication key or a newly generated authentication key without requesting the authentication key from the next time onward. .. 10. The switching control method according to claim 9, wherein the communication device that has received the communication request signal transmitted from the transceiver transmits a signal requesting the authentication key to the transceiver, and the communication device. Opening and closing, characterized in that the authentication key transmitted from the transceiver is received in response to a request for the authentication key from, and the control signal is transmitted together with the received authentication key or a newly generated authentication key. Control method.

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