JP2021093696A - Remote control transmission device, open/close control system, and open/close control method - Google Patents

Abstract

To prevent duplication of a control signal of an open/close device when the control signal is wirelessly transmitted.SOLUTION: When a control signal is transmitted in response to the operation of an operator of a remote control transmission device, a current number of operations n of the operator is encoded (encrypted) according to a predetermined rule, and is transmitted as a random ID together with the control signal. Since the number of operations n is incremented for each operation, a value n is different in each transmission. Therefore, the number of operations n is encoded (encrypted) according to a predetermined rule and transmitted, and a receiver compares a previous number of operations n-1 with the decrypted value n and authenticates whether the remote control transmission device is normal. Since the control signal of an open/close device is transmitted wirelessly together with the random ID, duplication of the control signal can be prevented.SELECTED DRAWING: Figure 4

Description

The present invention relates to a remote control transmission device, an open / close control system, and an open / close control method for controlling an open / close device installed in an opening such as a window or an entrance / exit of a structure including a building such as a house, a building, a factory, or a warehouse. In particular, the present invention relates to a remote control transmitter, an open / close control system, and an open / close control method configured to wirelessly transmit a control signal relating to the operation of the open / close device.

Electric shutters and electric doors that electrically perform each operation of opening and closing are used for opening and closing devices such as shutters and doors installed in the openings of structural frames including buildings such as buildings, factories, and warehouses. Often. In this way, the opening / closing device that electrically performs each operation of opening / closing is from a wired or wireless three-point type or one-point type dedicated switch equipped with three types of switches (operators) for 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 that needs to be operated by a plurality of people, such as a garage shutter device.

Further, in Patent Document 1, when the operator means, which is a dedicated switch, is connected to the slave unit control means and the master unit control means, respectively, the transmitter ID assigned to the operator means (unique to the operator means). The identification information) is read and stored on the slave unit control means and the master unit control means side, and the stored transmitter ID is used as a key for establishing a communication line between the master unit control means and the slave unit control means. A device that establishes (pairs) a wireless communication line connection has been proposed. The invention described in Patent Document 1 eliminates the need for a work space for system construction by using the identification information (transmitter ID) of a small operator means that is convenient to carry as a key for system construction, and at the installation site. This is an excellent effect that the slave unit control means can be appropriately set as the master unit control means such as the centralized communication device at the time of construction in the above.

Japanese Unexamined Patent Publication No. 2016-220015

Many open / close devices have been proposed so as to be configured to control the open / close operation by using a remote control transmitter 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 because the user can open and close the shutter without getting out of the vehicle.
In the case of such a wireless remote control transmitter, a receiving antenna is installed on the wall surface near the garage shutter device or in the storage box thereof, and the remote controller is configured to receive radio waves from the remote controller. Has been done. Further, in the open / close control system described in Patent Document 1, radio waves from the parent control means are received by the slave unit control means (remote control transceiver) provided in the garage shutter device.

This remote control transmitter / receiver demodulates an electric signal (for example, ASK modulated signal, FSK modulated signal, etc.) received and converted by the receiving antenna by the receiving unit, and transmits the original transmitted by the remote control transmitter or the transmitter of the master unit control means. A 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 the remote control transmission device and the master unit control means, which are the sources of the original transmission signal, are based on the identification information (transmitter ID) inserted in the signal. Authenticates whether or not it is possible to issue an operation instruction to the remote controller transceiver. After that, the shutter device is driven based on the control signal instructing the opening operation, closing operation, or stopping operation of the shutter device based on the instruction content inserted in the original transmission signal. As a result, each operation of opening / closing / stopping the shutter intended by the user is executed.

When transmitting signals from the remote control transmitter and the master unit control means to the remote controller transmitter / receiver wirelessly in this way, it is necessary to register the transmitter ID of the remote controller transmitter as identification information in the remote controller transmitter / receiver in advance. is necessary. Based on this identification information (transmitter ID), the opening / closing body device authenticates whether or not the remote control transmitting device and the master unit control means can issue an operation instruction.

Since the remote control transmitter and the master unit control means always transmit the identification information (transmitter ID) of the corresponding remote control transmitter when transmitting the control signal, the remote controller and the remote controller built in the opening / closing device are used. Separately prepares a remote control transmitter / receiver, and when the remote control transmitter and the master unit control means transmit the control signal, the identification information (transmitter ID) inserted in the transmission signal is received by receiving the transmission signal. There is a risk that the control signal itself including the above will be duplicated. In this way, when the control signal including the identification information is duplicated by another device, it can be continuously used.

Therefore, a third party who has nothing to do with the owner of the opening / closing device, the remote control transmitting device, and the master unit control means uses another remote control transmitter / receiver and the transmitter to duplicate the control signal, and the opening / closing device There is a risk that the opening operation can be controlled. As a countermeasure against such control signal duplication, it is conceivable to use a rolling code that changes the code in a specific pattern, but in this case, once blank transmission is executed at another location, the opening / closing body is actually opened and closed. When operating the device, there is a possibility that the operation cannot be performed, and it is necessary to perform the remote control operation several times before the device can be operated, which may take time and effort.

The present invention has been made in view of the above points, and is a remote control transmission device, an open / close control system, and an open / close control capable of preventing duplication of the control signal when transmitting the control signal of the open / close device in a wireless manner. To provide a method.

The first feature of the remote control transmitter according to the present invention is to wirelessly transmit a control signal related to the operation of the opening / closing body means corresponding to the operation of the operator to the receiver of the opening / closing body means together with unique identification information. In the remote control transmission device, when transmitting the control signal, the current number of operations n of the operator is encoded according to a predetermined rule, and the encoded random ID is transmitted together with the control signal.
In this method, when a control signal is transmitted in response to an operation of an operator of a remote control transmitter, the number of operations n of the operator at the present time is encoded (encrypted) according to a predetermined rule, and this is controlled as a random ID. It is intended to be transmitted together with the signal. Since the number of operations of the operator is incremented each time the operation is performed, a different value n is obtained each time the operation is performed. Therefore, by encoding (encrypting) the number of operations n according to a predetermined rule and transmitting the signal, the receiver compares the previous number of operations n-1 with the decrypted value n to transmit the remote controller. It is possible to authenticate whether the device is legitimate.

The second feature of the remote control transmitter according to the present invention is that when the number of operations n of the operator is expressed by the Y digit of the X-ary number (X and Y are even numbers), the value of two adjacent digits of the Y digit can be obtained. , The encoded random ID is created by converting according to the second conversion map group of the (Y / 2) type selected from the first conversion map group consisting of a plurality of conversion maps. It is in.
This relates to a rule in which the remote control transmitter encodes the number of operations n into a random ID. Since the number of operations n is generally displayed as a decimal number, this decimal number is represented by the Y digit of the X-ary number. In the embodiment, the number of operations n is 528, and when this is expressed in 6 hexadecimal digits, it becomes "000210h". Converts two adjacent Y-digit values with a (Y / 2) type of conversion map. Since the two adjacent digits of "000210h" are "00h", "02h", and "10h", the number of operations n is converted into a random ID by converting these values with three types of conversion maps. be able to.

A third feature of the remote control transmitter according to the present invention is that the number of operations n of the operator is displayed in 6 hexadecimal digits, and the 6 digits are adjacent to each other in the upper 2 digits, the middle 2 digits, and the lower 2 digits. The coded random ID is created by converting the value of according to a second map group consisting of three types of conversion maps selected from the first map group consisting of 256 types of conversion maps. There is.
This is a concrete embodiment of the predetermined rule described in the second feature according to the embodiment. The number of operations n is displayed in 6 hexadecimal digits. Based on three types of second map groups selected from the first map group consisting of 256 types of upper two digits, middle two digits, and lower two digits of the 6-digit display operation count n, respectively. Convert to a hexadecimal value. By transmitting the converted hexadecimal 6-digit random ID, the receiving side decodes the operation count n from the random ID based on the second map group. Since the first map group is assigned to each remote control transmission device from 256 types, if the three types of maps assigned to the remote control transmission device cannot be found, the number of operations n cannot be decoded. Can not. Further, even if three types of maps are found, the number of operations n takes a different value each time the transmission is performed. Therefore, by decoding the number of operations n and comparing it with the previous number of operations n-1, the normal remote control transmission device can be used. It is possible to recognize that, and it is possible to effectively prevent the fraudulent duplication of the control signal.

The fourth feature of the remote control transmitter according to the present invention is that in the remote control transmitter according to the second or third feature, the conversion map sets a value that can be taken by one of the two adjacent digits. Then, the converted numerical value is randomly assigned to each component of the matrix whose column is the value that the other digit can take.
This is a concrete configuration of the conversion map used for coding and decoding according to the embodiment. The transformation map consists of random numbers assigned to each component of the matrix. At this time, the value that one digit of the two digits can take and the value that the other digit can take are 16 in the case of hexadecimal numbers from "0h" to "Fh", so 16 rows x 16 columns (256 components). ) Is represented by a matrix. When the number of operations n is converted into a random ID with such three types of conversion maps, about 16.77 million random IDs are created, so that fraud such as duplication of the control signal can be effectively prevented.

The fifth feature of the remote control transmitter according to the present invention is that in the remote control transmitter according to the second, third or fourth feature, the receiver stores the first map group and transmits the remote controller. The device is to store the second map group.
In this method, the receiver side stores a large number of types of the first conversion map group, and the remote control transmitter stores only a few selected types of the second conversion map group. Even if the conversion map of the remote control transmitter is illegally duplicated, since it is only a part of the first conversion map group, the fraud can be effectively prevented. Further, since the different number of operations n is converted into a random ID and transmitted each time the transmission is performed, fraud can be effectively prevented by comparing the number of operations n with the previous number of transmissions n-1 on the receiver side.

The first feature of the opening / closing control system according to the present invention is to wirelessly transmit a control signal regarding the operation of the opening / closing body means in response to the operation of the operator to the receiver of the opening / closing body means together with unique identification information. In an open / close control system including a transmitter, the transmitter encodes the current number of operations n of the operator according to a predetermined rule, transmits the encoded random ID together with the control signal, and the receiver The purpose is to decode the number of operations n based on the received random ID.
This is an invention of an open / close control system corresponding to the first feature of the remote control transmitter.

The second feature of the open / close control system according to the present invention is that in the open / close control system according to the first feature, the transmitter sets the number of operations n of the operator to the Y digit of the X-ary number (X, Y are The value of two adjacent digits of the Y digit when expressed by (even) is the second conversion map consisting of (Y / 2) types of conversion maps selected from the first map group consisting of a plurality of conversion maps. The encoded random ID is created by converting each according to the map group, and the receiver is to decode the operation number n using the second map group.
This is an invention of an open / close control system corresponding to the second feature of the remote control transmitter.

The third feature of the open / close control system according to the present invention is that in the open / close control system described in the second feature, the number of operations n of the operator is displayed in 6 hexadecimal digits, and is adjacent to the 6 digits. The matching upper two-digit, middle two-digit, and lower two-digit values are converted according to the second map group consisting of three types of conversion maps selected from the first map group consisting of 256 types of conversion maps. By doing so, the encoded random ID is created, and the receiver is to decode the operation number n using the second map group.
This is an invention of an open / close control system corresponding to the third feature of the remote control transmitter.

The fourth feature of the open / close control system according to the present invention is that in the open / close control system according to the second or third feature, the conversion map sets a value that can be taken by one of the two adjacent digits. It is configured by randomly assigning the converted numerical value to each component of the matrix whose column is the value that the other digit can take.
This is an invention of an open / close control system corresponding to the fourth feature of the remote control transmitter.

The fifth feature of the open / close control system according to the present invention is that in the open / close control system according to the second, third or fourth feature, the receiver stores the first map group and the front transmitter. Is to store the second map group.
This is an invention of an open / close control system corresponding to the fifth feature of the remote control transmitter.

The first feature of the opening / closing control method according to the present invention is that a control signal relating to the operation of the opening / closing body means according to the operation of the operator is transmitted to the opening / closing body means by a wireless method together with unique identification information. In the opening / closing control method for controlling the opening / closing operation of the opening / closing body means, the current number of operations n of the operator is encoded according to a predetermined rule, and the encoded random ID is transmitted to the opening / closing body means together with the control signal. The opening / closing body means that has received the random ID is to decode the number of operations n based on the random ID.
This is an invention of an opening / closing control method corresponding to the first feature of the opening / closing control system.

The second feature of the open / close control method according to the present invention is that in the open / close control method described in the first feature, the number of operations n of the operator is expressed by the Y digit of the X-ary number (X and Y are even numbers). In this case, the adjacent two-digit values of the Y digits are converted according to the second map group consisting of (Y / 2) types of conversion maps selected from the first map group consisting of a plurality of conversion maps. By doing so, the encoded random ID is created, and the number of operations n is decoded using the second map group.
This is an invention of an opening / closing control method corresponding to the second feature of the opening / closing control system.

The third feature of the open / close control method according to the present invention is that in the open / close control method described in the second feature, the number of operations n of the operator is displayed in 6 hexadecimal digits and is adjacent to the 6 digits. The matching upper two-digit, middle two-digit, and lower two-digit values are converted according to the second map group consisting of three types of conversion maps selected from the first map group consisting of 256 types of conversion maps. By doing so, the encoded random ID is created, and the number of operations n is decoded using the second map group.
This is an invention of an opening / closing control method corresponding to the third feature of the opening / closing control system.

The fourth feature of the open / close control method according to the present invention is that in the open / close control method according to the second or third feature, the conversion map sets a value that can be taken by one of the two adjacent digits. It is configured by randomly assigning a converted numerical value to each component of a matrix whose column is a value that can be taken by the other digit.
This is an invention of an opening / closing control method corresponding to the fourth feature of the opening / closing control system.

The fifth feature of the open / close control method according to the present invention is that in the open / close control method according to the second, third or fourth feature, the receiving side stores the first map group and the second map. The sender remembers the group.
This is an invention of an opening / closing control method corresponding to the fifth feature of the opening / closing control system.

According to the remote control transmission device, the open / close control system, and the open / close control method of the present invention, there is an effect that duplication of the control signal can be prevented when the control signal of the open / close device is transmitted wirelessly.

It is a figure which shows the appearance of the shutter device provided with the opening / closing body device of this invention. It is a partial perspective view of the opening / closing body device of FIG. 1 as viewed from the front. It is a figure which shows the outline of the control system of the opening / closing body device which concerns on this invention. It is a figure which shows an example of the data conversion map for random ID generation. It is a flowchart which shows an example of the remote control processing executed by a remote control transmission device. FIG. 5 is a flowchart showing an example of processing executed by the shutter switch control device based on each control signal transmitted from the remote control transmission device by the remote control processing of FIG.

Hereinafter, preferred embodiments of the remote control transmitter, the open / close control system, and the open / close control method according to the present invention will be described with reference to the accompanying drawings. In this embodiment, as an opening / closing body device controlled by an opening / closing control system, a shutter device that is controlled to open / close up / down with an opening direction at the top and a closing direction at the bottom will be described as an example.

FIG. 1 is a diagram showing the appearance of a shutter device including the opening / closing device of the present invention. FIG. 2 is a partial perspective view of the opening / closing body device of FIG. 1 as viewed from the front. FIG. 3 is a diagram showing an outline of a control system for an opening / closing device according to the present invention. Normally, 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 and 4, the remote control transmitter 5 and the photoelectric sensors 6 and 7 are provided. Consists of.

The guide rails 3 and 4 are provided on both ends of the opening of the building so as to be in contact with both ends of the shutter curtain 2, and have a U-shaped guide groove having a cross-sectional shape extending from the forage portion to the floor surface. It is composed of a metal member having a rail. The shutter curtain 2 rises and falls along the guide grooves of the guide rails 3 and 4, and opens and closes the opening. A take-up shaft 11 is rotatably provided in the shutter case 1, and the shutter curtain 2 is taken up or rewound on the take-up shaft 11. Further, a motor 13 is provided in the shutter case 1, and the winding 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, a take-up shaft 11, a chain 12, a motor 13, a position detection device 14, and a shutter switch control device 15 are provided in the shutter case 1. The take-up shaft 11 is rotatably provided in the shutter case 1 and winds up and rewinds the shutter curtain 2. The chain 12 connects a main sprocket provided on the rotating shaft of the motor 13 and a driven sprocket provided on the rotating shaft of the take-up shaft 11. Therefore, the rotational driving force of the motor 13 is transmitted to the take-up shaft 11 side via the chain 12, and when the motor 13 rotates, the take-up shaft 11 rotates via 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 detecting device 14 for detecting the rotational position, that is, the open / closed position and the open / closed state of the shutter curtain 2. The position detection device 14 is composed of a pulse generation type rotary encoder or the like. Since a pulse signal corresponding to the rotation of the motor 13 is output to the shutter switch control device 15, this pulse is generated at the rotation position of the motor 13, the position at the opening of the closing end of the shutter curtain 2, and the operating state. The shutter opening / closing device control device 15 calculates the result based on the situation.

The shutter switch control device 15 has a microcomputer configuration, and power is supplied 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 transmission device 5 at the remote control receiver, and controls the rotation of the motor 13 based on the control signal. The remote controller receiver 21 is connected to the remote controller transmitter 5 in a predetermined frequency band (for example, 426 [MHz]), and is connected to the remote controller receiver 21 via a transmitter ID and a random ID peculiar to the remote controller transmitter 5, respectively. It has become.

The remote control transmitter 5 has an open switch 5a for opening, a stop switch 5b for stopping, and a closing switch 5c for closing, and each of the opening / closing stops corresponding to the operating states of the respective switches 5a to 5c of the opening / closing stop. A control signal (including a transmitter ID and a random ID) related to the operation is output to the remote controller receiver 21 of the shutter switch control device 15. The remote controller receiver 21 executes each operation of opening / closing / stopping only when the transmitter ID included in the control signal is registered and the random ID matches a predetermined ID. It should be noted that the shutter opening / closing device control device 15 may be configured to transmit a control signal using a wired operation switch or the like to perform the opening / closing operation.

Since the transmitter ID is unique to the remote controller transmitter 5, it can be determined whether or not it has been registered by registering it in the remote controller receiver 21 in advance. On the other hand, the random ID is a random ID generated each time the remote control transmission device 5 transmits a control signal. That is, the random ID is an ID that is updated for each transmission operation of the remote controller transmission device 5, is not unique like the transmitter ID, but is an ID that changes according to specific conditions. The remote control receiver 21 has a function of generating the same ID as the random ID generated on the remote control transmission device 5 side.

The photoelectric sensors 6 and 7 are obstacle detection devices used for confirming the passing state of a person, an automobile or the like, and the presence of an object or the like, and are provided on the lower left and right ends of the opening. In the figure, it is provided at a predetermined position on either the front or the back of the opening, but it may be provided both on the front and back and / or above the opening. The photoelectric sensor 6 is composed of a prismatic floodlight support member, and a photoelectric sensor 7 composed of a receiver support member having the same shape is provided on the opposite side thereof so as to be paired. 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 floodlight 6a including a light emitting element that emits light such as infrared rays by itself. On the other hand, the photoelectric sensor 7 supports a light receiver 7a including a light receiving element that receives and senses light by itself. The projector 6a of the photoelectric sensor 6 and the receiver 7a of the photoelectric sensor 7 are arranged so as to face each other, and form an optical path 8 of a light ray for detecting an object 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 switch control device 15 by the switching mechanism of the photoelectric sensor amplifiers 6b and 7b. In FIG. 1, the optical path 8 schematically shows an object sensing region of the photoelectric sensors 6 and 7.

FIG. 4 is a diagram showing an example of a data conversion map for generating a random ID. In this embodiment, using the three types of data conversion maps M1 to M3 shown in FIG. 4, the number of operations n of the transmitter is converted into a random ID, and the transmitter ID and the open / close operation code are transmitted together. There are 256 types of data conversion maps M1 to M256, which are stored in the memory area of the remote controller receiver 21. Any three types selected from the 256 types of data conversion maps stored in the remote control receiver 21 are stored in the remote control transmitter 5. In FIG. 3, three types of data conversion maps M1 to M3 out of 256 types are stored in the memory area of the remote controller transmission device 5. The remote control receiver 21 stores which remote control transmission device stores which data conversion map.

The data conversion maps M1 to M3 convert the number of operations n of the transmitter into a random ID having a 24-bit configuration. That is, since the number of operations n is a decimal number, this is converted into a 6-digit hexadecimal number (HEX conversion). The data conversion map M1 has the upper 8 bits (6th and 5th digits) of the 6-digit hexadecimal number, the data conversion map M2 has the middle 8 bits (4th and 3rd digits), and the data conversion map M3 has the lower 8 bits. 8 bits (2nd digit, 1st digit) are converted into different 8 bits. The data conversion maps M1 to M3 each have 16 possible values (0h, 1h, 2h ... Fh) of the upper 4 bits of 8 bits in a row, and 16 possible values (0h, 0h,) of the lower 4 bits. 1h, 2h ... Fh) are associated with each column, and the converted numerical value is randomly assigned to each component of each matrix.

For example, when the number of operations n of the transmitter is 528 times, converting "528" into a 6-digit hexadecimal number gives "000210h". The data conversion map M1 converts the upper 8 bits (6th digit, 5th digit) "00h" into another 8-bit data, and the map number is 203. In the data conversion map M1 of FIG. 4, since both the upper 4 bits (6th digit) and the lower 4 bits (5th digit) are "0h", the converted value is "35h".

The data conversion map M2 converts the intermediate 8-bit (fourth digit, third digit) "02h" into another 8-bit data, and the map number is 25. In the data conversion map M2 of FIG. 4, the upper 4 bits (4th digit) are "0h" and the lower 4 bits (3rd digit) are "2h", so the converted value is "32h".

The data conversion map M3 converts the lower 8 bits (second digit, first digit) "10h" into another 8 bits, and the map number is 242. In the data conversion map M3 of FIG. 4, the upper 4 bits (second digit) are "1h" and the lower 4 bits (first digit) are "0h", so the converted value is "2Ah". Therefore, the hexadecimal number "000210h", which has 528 operations, is converted into the random ID "35322Ah" and transmitted to the remote controller receiver 21.

The remote control receiver 21 that has received the random ID sets the random ID to the number of operations n of the remote control transmission device 5 based on the data conversion map corresponding to the map numbers 203, 25, 242 stored in the remote control transmission device 5. By decoding, the number of operations n = 528 is acquired. Since the remote controller 21 stores the number of operations of the previous random ID, the value n-1 of the number of operations is compared with the number of operations n of this time, and the number of operations n of this time is the number of operations n of the previous time. If it is within 3 counts with respect to -1, the remote control transmitter 5 recognizes that the transmitter is correct. On the other hand, when the number of operations n is smaller than the number of times n-1 of the previous operations or 4 counts or more, the remote controller transmission device 5 does not execute the process as invalid.

FIG. 5 is a flowchart showing an example of remote control processing executed by the remote control transmission device. In FIG. 5, when each switch 5a to 5c of the open / close stop of the remote control transmitter 5 is operated, a control signal relating to each operation of the open / close stop corresponding to the operation state is transmitted to the remote controller receiver 21 together with the above-mentioned random ID. Will be done.

In step S51, it is determined whether or not the stop switch 5b has been operated. If the stop switch 5b is operated (yes), the process proceeds to the next step S52, and if it is other than the stop switch 5b (no), the process proceeds to step S53. move on.
In step S52, the control signal and the random ID related to the stop operation corresponding to the stop switch 5b are transmitted to the remote control receiver 21 together with the regular identification information (transmitter ID) corresponding to the remote control transmission device 5.

In step S53, it is determined whether or not the open switch 5a has been operated. If the open switch 5a is operated (yes), the process proceeds to the next step S54, and if it is other than the open switch 5a (no), the process proceeds to step S55. move on.
In step S54, the control signal and the random ID related to the open operation corresponding to the open switch 5a are transmitted to the remote controller receiver 21 together with the regular identification information (transmitter ID) corresponding to the remote control transmitter 5.

In step S55, it is determined whether or not the close switch 5c has been operated. If the close switch 5c is operated (yes), the process proceeds to the next step S56, and if it is other than the close switch 5c (no), the process returns.
In step S56, the control signal and the random ID related to the closing operation corresponding to the closing switch 5c are transmitted to the remote control receiver 21 together with the regular identification information (transmitter ID) corresponding to the remote control transmitting device 5.
In step S57, an increment process of adding 1 to the current number of operations n is executed.

In this remote control process, a case where a random ID is transmitted together with a control signal for each operation of opening / closing / stopping has been described, but in the case of a control signal corresponding to the stop switch 5b or the closing switch 5c, the random ID may not be transmitted. A separate remote control receiver, which has nothing to do with the remote control receiver 21, is prepared, and when the remote control transmitter 5 transmits a control signal, the transmission signal is received, and the identification information inserted in the transmission signal, that is, transmission. Even if the control signal including the machine ID and the random ID can be duplicated, even if the remote control receiver 21 receives the control signal related to the stop operation or the close operation, the problem is that the remote receiver 21 only executes the stop operation or the close operation. Absent. Further, when the control signal for the open operation is transmitted, if the normal remote control transmitter 5 is used, the random ID corresponding to the number of operations n is simultaneously transmitted, so that the remote control receiver 21 counts 3 times the number of operations n. Since it is possible to determine whether it is normal or incorrect depending on whether or not it is within the range, there is no problem even if the control signal and the random ID related to the open operation are duplicated.

FIG. 6 is a flowchart showing an example of processing executed by the shutter switch control device based on each control signal transmitted from the remote control transmission device by the remote control processing of FIG. That is, FIG. 6 describes the process executed by the shutter switch control device 15 that has received the control signal for each operation of the opening / closing stop.

In step S60, whether or not the remote control transmitter 5 is a legitimate transmitter, that is, the value (number of operations n) obtained by decoding the random ID corresponding to the number of received operations n becomes the previous number of operations n-1. On the other hand, it is determined whether or not it is within 3 counts, and if it is normal (yes), the process of the next step S61 or less is executed, and if it is not normal (no), it returns immediately.
In step S61, it is determined whether or not the signal received by the remote controller receiver 21 is a stop signal corresponding to the operation of the stop switch 5b. If the stop signal is received (yes), the process proceeds to the next step S62, 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 in the opening / closing operation (stopped), and if the opening / closing operation is in progress (yes), the process proceeds to the next step S63, and in the case of stopping (no). Returns.
In step S63, since the shutter curtain is in the opening / closing operation, the operation is stopped and the shutter curtain returns. Here, the movement of the shutter curtain 2 during the opening operation is referred to as a forward movement, and the movement during the closing operation is referred to as a reverse movement.

In step S64, it is determined whether or not the signal received by the remote control receiver 21 is the reception of the open signal corresponding to the operation of the open switch 5a, and in the case of the open signal reception (yes), the process proceeds to the next step S65 to open. If it is not a 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 in the closed operation (opening or stopped), and if it is in the closing operation (yes), the process proceeds to the next step S66, and the opening operation is in progress. Alternatively, if the shutter is stopped (no), the process proceeds to step S67.

In step S66, since it was determined in step S65 that the closing operation is in progress, 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 was determined in step S65 that the open operation is in progress or stopped, the open operation is continued as it is when the open operation is in progress, and the open operation is started and returned when the operation is stopped.

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

In step S6A, it is determined whether or not the current operation of the shutter curtain 2 is open (closed or stopped), and if it is open (yes), the process proceeds to step S6C, and the shutter curtain 2 is closed or stopped. If it is medium (no), the process proceeds to step S6B.
In step S6B, when the closing operation is in progress, the closing operation is continued as it is, and when the closing operation is stopped, the closing operation is started and returned.
In step S6C, since the opening operation is in progress, the opening operation is stopped, the closing operation is started after the opening operation is stopped, and the process returns to step S60.

In the above-described embodiment, the number of operations n of the decimal number is displayed in 6 digits of the hexadecimal number, and the values of the upper 2 digits, the middle 2 digits, and the lower 2 digits of the 6 digits adjacent to each other are displayed from 256 types of conversion maps. A case where a coded random ID is created by converting according to three types of map groups of map numbers 203, 25, and 242 selected from the map groups of map numbers 0 to 255 will be described as a predetermined rule. However, these numbers are just an example and are generally expressed as the following rules.
When the number of operations n is expressed by the Y digit of the X-ary number (X and Y are even numbers), the value of two adjacent digits of the Y digit is selected from the first map group consisting of a plurality of conversion maps ( Y / 2) Create a coded random ID by converting according to a second map group consisting of various types of conversion maps.
Further, the types of conversion maps are not limited to 256 types, and it is sufficient that the types of the first map group are larger than those of the second map group. Further, the second map group is preferably configured to include different types of maps, but may be configured to include the same map.

In the above-described embodiment, the shutter curtain that is extended by the vertical elevating method has been described as an example, but the same applies even if the shutter-shaped opening / closing member is extended by the horizontal pulling method or the horizontal method. Can be applied to. Further, as the opening / closing device, for example, it can be applied to a shutter device, an overhead door, a window shutter device, a blind device, a roll screen device, a hanging curtain device, a sliding door device, a moving partition device, an awning device, a waterproof plate device, and the like. ..

1 ... Shutter case 11 ... Winding shaft 12 ... Chain 13 ... Motor 14 ... Position detection device 15 ... Shutter switch control device 2 ... Shutter curtain 21 ... Remote control receivers 3 and 4 ... Guide rail 5 ... Remote control transmission device 5a ... Open Switch 5b ... Stop switch 5c ... Close switch 6, 7 ... Photoelectric sensor 6a ... Floodlight 7a ... Receiver 6b, 7b ... Photoelectric sensor amplifier 8 ... Optical path M1 to M3 ... Data conversion map

Claims (15)

In a remote control transmitter that wirelessly transmits a control signal related to the operation of the opening / closing body means corresponding to the operation of the operator to the receiver of the opening / closing body means together with unique identification information.
A remote control transmission device characterized in that, when transmitting the control signal, the number of operations n of the operator at the present time is encoded according to a predetermined rule, and the encoded random ID is transmitted together with the control signal. In the remote control transmission device according to claim 1, when the number of operations n of the operator is expressed by the Y digit of the X-ary number (X and Y are even numbers), a plurality of adjacent two-digit values of the Y digit are set. The feature is that the encoded random ID is created by converting according to each of the (Y / 2) types of second conversion map groups selected from the first conversion map group consisting of conversion maps. Remote control transmitter. In the remote controller transmitting device according to claim 2, the number of operations n of the operator is displayed in 6 hexadecimal digits, and the adjacent upper 2 digits, middle 2 digits, and lower 2 digits of the 6 digits are displayed. The coded random ID is created by converting according to a second map group consisting of three types of conversion maps selected from the first map group consisting of 256 types of conversion maps. Remote control transmitter. In the remote control transmitter according to claim 2 or 3.
The conversion map is configured by randomly assigning converted numerical values to each component of a matrix whose rows are the values that can be taken by one of the two adjacent digits and whose columns are the values that can be taken by the other digit. A remote control transmitter characterized by being In the remote control transmission device according to claim 2, 3 or 4, the receiver stores the first map group, and the remote control transmission device stores the second map group. apparatus. In an open / close control system including a transmitter that wirelessly transmits a control signal related to the operation of the open / close body means in response to an operation of an operator to a receiver of the open / close body means in a wireless manner.
The transmitter encodes the current number of operations n of the operator according to a predetermined rule, and transmits the encoded random ID together with the control signal.
The receiver is an open / close control system characterized in that the number of operations n is decoded based on the received random ID. In the open / close control system according to claim 6,
In the transmitter, when the number of operations n of the operator is expressed by the Y digit of the X-ary number (X and Y are even numbers), the value of two adjacent digits of the Y digit is converted into a first conversion map composed of a plurality of conversion maps. The encoded random ID is created by converting according to a second map group consisting of (Y / 2) types of conversion maps selected from the map groups of.
The receiver is an open / close control system characterized by decoding the number of operations n using the second map group. In the open / close control system according to claim 7, the number of operations n of the operator is displayed in 6 hexadecimal digits, and the adjacent upper 2 digits, middle 2 digits, and lower 2 digits of the 6 digits are displayed. The encoded random ID is created by converting according to the second map group consisting of three types of conversion maps selected from the first map group consisting of 256 types of conversion maps.
The receiver is an open / close control system characterized by decoding the number of operations n using the second map group. In the open / close control system according to claim 7 or 8.
The conversion map is configured by randomly assigning converted numerical values to each component of a matrix whose rows are the values that can be taken by one of the two adjacent digits and whose columns are the values that can be taken by the other digit. An open / close control system characterized by being used. The opening / closing control system according to claim 7, 8 or 9, wherein the receiver stores the first map group and the front transmitter stores the second map group. .. In the opening / closing control method for controlling the opening / closing operation of the opening / closing body means by wirelessly transmitting a control signal regarding the operation of the opening / closing body means according to the operation of the operator to the opening / closing body means together with unique identification information.
The current number of operations n of the operator is encoded according to a predetermined rule, and the encoded random ID is transmitted to the opening / closing body means together with the control signal.
The opening / closing control method, wherein the opening / closing body means that has received the random ID decodes the number of operations n based on the random ID. In the opening / closing control method according to claim 11,
When the number of operations n of the operator is expressed by the Y digit of the X-ary number (X and Y are even numbers), the two adjacent two-digit values of the Y digit are represented in the first map group composed of a plurality of conversion maps. The encoded random ID is created by converting according to a second map group consisting of (Y / 2) types of conversion maps selected from.
An opening / closing control method comprising decoding the number of operations n using the second map group. In the open / close control method according to claim 12, the number of operations n of the operator is displayed in 6 hexadecimal digits, and the adjacent upper 2 digits, middle 2 digits, and lower 2 digits of the 6 digits are displayed. The encoded random ID is created by converting according to the second map group consisting of three types of conversion maps selected from the first map group consisting of 256 types of conversion maps.
An opening / closing control method comprising decoding the number of operations n using the second map group. In the opening / closing control method according to claim 12 or 13.
The conversion map is configured by randomly assigning converted numerical values to each component of a matrix whose rows are the values that can be taken by one of the two adjacent digits and whose columns are the values that can be taken by the other digit. An opening / closing control method characterized by being performed. The opening / closing control method according to claim 11, 12 or 13, wherein the receiving side stores the first map group and the transmitting side stores the second map group.

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