JP6425920B2 - Blind control system - Google Patents

Description

  The present invention relates to a blind and a blind control system, and more particularly to a blind whose control of various states such as height and angle of the blind is automatically controlled.

  There is known a motorized blind that is automatically controlled from control means provided on the blind body and external control means (see Patent Document 1). The automatic control of a conventional motorized blind is outlined with reference to FIG. In FIG. 8, reference numeral 10 denotes the contents of control by the control means, and reference numeral 20 denotes the memory contents of the storage means provided in the motorized blind. When the control means changes the state of the blind from state A to state E in a predetermined cycle, the changed states A to E are overwritten and stored in the storage means.

  In such automatic control, it may be changed to a state different from automatic control in the middle of automatic control. As a case where the state of the blind is changed, for example, it is separated by the controller which can separate the blind from the object of automatic control and can change the state of the blind to a desired state, or in case of emergency such as fire It becomes a state controlled in conjunction with the device, and may be changed by performing interrupt control different from automatic control.

Japanese Patent Application Laid-Open No. 3-169997

  By the way, when the state of a blind is changed by automatic control, it may not necessarily be in a desired state. In addition, after being changed to a state different from the automatic control in the middle of the automatic control, the state of the blind when returning to the automatic control may not be the desired state. In such a case, there is a problem that even if it is desired to return to the blind state at a certain point in time, the blind state is stored by overwriting, so that it can not be restored to the desired blind state in the past. Especially in automatic control, there is solar control as control based on the outdoor illuminance, and general solar control is controlled only by the slat angle depending on the position of the sun and the presence of direct light, so When the height of the blind has been changed, even if the automatic control returns to the automatic control, although the angle of the blind can be returned to the desired angle by the automatic control, the height of the blind becomes the desired height by the automatic control I could not go back.

  Therefore, the present invention has been made in view of such a problem, and the object of the present invention is to return to the desired blind state when the state of the blind changed by the automatic control or the like is not the desired state. To provide a blind and blind control system that can

  In order to solve the above problems, according to a first aspect of the present invention, a state control means for controlling the state of a blind, and a state information storage means for storing state information related to the state of the blind at any time The state control means receives the state restoration signal instructing restoration of the state of the blind, and based on the state information stored in the state information storage means, the state of the blind is set to the state at the arbitrary time point. A blind is provided, characterized in that it controls.

  According to this configuration, regardless of the state of the blind, the state of the blind can be controlled based on the state information stored in the state information storage unit by receiving the state restoration signal.

  In the blind of the present invention, the state information storage means can store a plurality of the state information, and the state restoration signal includes one of a plurality of state information stored in the state information storage means. Information for selection may be included. By storing a plurality of pieces of state information, it is possible to select and restore a desired one of the plurality of states.

  The state information storage means may store state information on the state of the blind at the time of reception when receiving a signal instructing to store state information on the state of the blind at the arbitrary time. Good. By being able to store the state of the blind at any point in time, it can be restored to the stored desired state at any point thereafter.

  In order to solve the above problems, according to a second aspect of the present invention, there are provided a plurality of blinds, a central control device connected to the plurality of blinds to control the state of the blinds, and one or more blinds. A controller connected to the respective blinds, wherein each blind is provided with a blind control system in which a state control signal for controlling the state of the blinds is transmitted from the central control unit or the controller. In the blind control system of the present invention, each of the blinds includes state control means for controlling the state of the blinds, and state information storage means for storing state information on the state of the blind at any time, the state control means And after storing state information on the state of the blind, when receiving a state restoration signal instructing restoration of the blind state from the central control unit or the controller, based on the state information stored in the state information storage means , And control the state of the blind.

  According to this configuration, by storing the state information on the state of the blind at any time, even if there is a change in the state of the blind by automatic control by the central control unit, the blind is based on the state information at the stored time Can control the state of

  In the blind control system of the present invention, the state information storage means can store a plurality of the state information, and the state restoration signal includes one of a plurality of state information stored in the state information storage means. Information for selecting one may be included. By storing a plurality of pieces of state information, it is possible to select and restore a desired one of the plurality of states.

  Further, the system further comprises an external control unit for controlling the blind in conjunction with the central control unit, and at the time of the interlocking transmission of the notification signal from the external control unit to the central control unit, the time when the notification signal is transmitted. The state information may be stored in the state information storage means, and the central control device may transmit the state restoration signal when interlocking between the central control device and the external control device is released. . According to such a configuration, the state information of the blind at the time when the notification signal is transmitted from the external control device can be stored, so that when the interlock with the external control device is released, it is stored by the state restoration signal. The state of the blind can be controlled based on the state information.

  Further, the central control unit transmits control signals to the respective blinds at a predetermined cycle, and each of the blinds has a remote mode in which control from the central control unit is prioritized, and control from the controller is prioritized. Controlled in any of the selected local modes, and in the remote mode, when the notification signal is transmitted from the external control device, the state of the blind at the time of receiving the notification signal or the control signal transmitted in the predetermined cycle When at least one of the states of the blinds is stored in the state information storage means and the central control unit and the external control unit are released from the interlock after receiving the notification signal, each of the blinds is The state stored in the state information storage means may be the last. According to this configuration, in the remote mode, at least one of the blind state at the time of receiving the notification signal or the blind state based on the control signal transmitted at a predetermined cycle can be stored in the storage unit. When the interlock with the external control device is released, the state of the blind can be controlled based on the stored state information. Therefore, the open / close state reflecting the automatic control can be made.

  Further, the central control unit transmits control signals to the respective blinds at a predetermined cycle, and each of the blinds has a remote mode in which control from the central control unit is prioritized, and control from the controller is prioritized. Controlled in any one of the local modes, and in the local mode, when the notification signal is transmitted from the external control device, the state of the blind at the time of receiving the notification signal or the control signal transmitted in the predetermined cycle When at least one of the states of the blinds is stored in the state information storage means and the central control unit and the external control unit are released from the interlock after receiving the notification signal, each of the blinds is The state at the time of receiving the notification signal may be set. According to this configuration, in the local mode, at least one of the blind state at the time of receiving the notification signal or the blind state based on the control signal transmitted at a predetermined cycle can be stored in the storage unit. When the linkage with the external control device is released, even if there is a change in the state of the brine, the state of the blind can be controlled based on the last stored state information. Therefore, the state of the blind reflecting the operation at hand can be obtained.

  According to the present invention, when the state of the blind changed by the automatic control or the like is not the desired state, it is possible to return to the desired blind state. The other effects of the present invention will also be described in the section of embodiments for carrying out the present invention.

It is a figure showing composition of a blind control system concerning a 1st embodiment. It is a block diagram which shows the structure of a blind. It is a figure which shows control of a blind. It is a figure which shows the structure of the blind control system concerning 2nd Embodiment. It is a block diagram which shows the structure of a blind. It is a figure which shows control of a blind. It is a figure which shows the application example of the blind control system concerning 2nd Embodiment. It is a figure which shows control of the conventional blind.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present specification and the drawings, components having substantially the same functional configuration will be assigned the same reference numerals and redundant description will be omitted.

First Embodiment
A first embodiment of the present invention will be described with reference to FIGS. 1 to 3. In this embodiment, a case where a central control unit controls a plurality of blinds arranged across a plurality of floors in a building will be described as an example.

  As shown in FIG. 1, the blind control system 100 according to the present embodiment includes a sunshine detecting device 110 installed on the roof of a building, a floor relay device 120 installed in the building, a blind communication line 130, and a central control. A device 140 and a blind 150 are provided. Note that FIG. 1 shows only the configuration necessary for the description of the present embodiment. The following will be described in order.

  The sunshine detecting device 110 measures the illuminance, and for example, the sunshine detecting device described in Japanese Patent Application Laid-Open No. 2007-101501 is installed.

  The floor relay device 120 is provided on each floor, converts the signal from the central control device 140 and transmits it to the blind 150 of the corresponding floor, or temporarily stores the state of the blind 150 of the corresponding floor. To The floor relay device 120 is connected to the sunshine detection device 110, and temporarily stores the illuminance value of the sunshine detection device 110.

  The blind communication line 130 connects the sunshine detection device 110, the floor relay device 120, the central control device 140, and the blind 150, and is a communication line for transmitting a signal related to control of the blind 150.

(Central control unit 140)
The central controller 140 manages control and status of the blinds 150. The central control unit 140 has at least the same functional units as general electronic computers such as arithmetic means (CPU), storage means (for example, ROM, RAM, etc.), and transfers data, performs operations, temporarily according to a predetermined program. Data storage or main program storage. The central control device 140 also performs data input / output with the blinds 150 via the floor relay device 120 and stores data and programs. More specifically, the central control unit 140 determines the brightness or fog based on the illuminance value measured by the sunlight detection unit 110, and calculates the rotation angle of the slat 158, which will be described later, of the blind 150. It also sends data of automatic control to the blinds 150, manages a schedule, controls blinds throughout the building, and acquires the state of the blinds.

  In addition to the control signal for controlling the state of the blind 150, the central control device 140 also instructs a signal to store the current state of the blind 150 as a control signal specific to the present embodiment (hereinafter referred to as a state holding signal And a signal instructing the state restoration of the blind 150 (hereinafter referred to as a state restoration signal) to the control unit 154 of the blind 150, respectively. This point will be further described later.

(Blind 150)
The blinds 150 are, for example, horizontal blinds that open and close electrically, and a plurality of blinds are provided on each floor as shown in FIG.

The details of the blind 150 will be described with reference to FIG.
As shown in FIG. 2, the blind 150 receives the controller 152 with which the user optionally transmits a command regarding the state of the blind 150, and the signal from the controller 152 or the instruction from the central controller 140 to receive the state of the blind 150. Control unit 154 that controls the state of the blind 150, a storage unit 156 (first and second storage units 156-1 and 156-2) that stores state information related to the state of the blind 150, and a slat whose open / close state is controlled by the control unit 154 And 158. In FIG. 2, only the configuration necessary for the description of the present embodiment is illustrated. The following will be described in order.

  The controller 152 is for operating the blinds 150 at hand and is provided for each of the one or more blinds 150 (see also FIG. 1). The controller 152 transmits a signal similar to the signal transmitted by the central control device 140 described above to the control unit 154 in the subsequent stage. That is, in addition to the control signal for controlling the state of the blind 150, the controller 152 instructs, as a control signal specific to the present embodiment, the current state of the blind 150, and the state of the blind 150 A state restoration signal for instructing restoration is transmitted to the control unit 154 of the blind 150, respectively. This point will be further described later.

  The controller 154 receives a signal from the central controller 140 or the controller 152, and controls the state of the blind 150 based on the signal. The control unit 154 performs periodic automatic control by the central control device 140 and also performs manual control by the controller 152. The cycle of automatic control by central controller 140 can be arbitrarily set, and is set, for example, to 60 minutes.

  Further, when the control unit 154 receives the state holding signal from the central control unit 140 or the controller 152, the control unit 154 stores the current state of the blind 150 in the second storage unit 156-2 described later. Furthermore, when receiving the state restoration signal from the central control device 140 or the controller 152, the control unit 154 controls the state of the blind 150 based on the state information stored in the second storage unit 156-2. Here, the state of the blind 150 is a state such as the degree of rotation angle of the slat 158 and the degree of elevation height of the slat 158.

  The storage unit 156 is configured by a RAM or the like, which is a rewritable memory, and includes a first storage unit 156-1 and a second storage unit 156-2. The first storage unit 156-1 overwrites and stores the state of the blind 150 sequentially changed by the control unit 154 by the automatic control or the manual control when it is changed.

  On the other hand, when the control unit 154 receives the status holding signal from the central control unit 140 or the controller 152, the second storage unit 156-2, which is a characteristic component of this embodiment, receives the blind at the time of reception. Memorize 150 states. The second storage unit 156-2 overwrites the changed state of the blind 150 even if the state of the blind 150 is changed by the automatic control or the manual control and the storage content of the first storage unit 156-1 is changed. I do not remember in

  The configuration of the blind control system 100 according to the present embodiment has been described above. Next, control of the blind 150 in the blind control system 100 will be described with reference to FIG.

  When the control unit 154 performs automatic control to change the state of the blind 150 to state A, state B,... According to an instruction from the central control unit 140, as shown in FIG. 1 stores the state A, the state B,...

  Then, when the control unit 154 receives a state holding signal from the central control unit 140 or the controller 152 when the control state of the control unit 154 is the state C, as shown in FIG. 2 stores this state C. The state information stored in the second storage unit 156-2 at this time is the rotation angle of the slat 158 in the state C and the height of the blind 150. The second storage unit 156-2 stores the state at the time of reception only when the control unit 154 receives the state holding signal, and does not store other states.

  Thereafter, when the control state in the control unit 154 is changed to the state D, the state E,..., The first storage unit 156-1 changes the state D, the state E,. It will memorize by overwriting sequentially. On the other hand, the second storage unit 156-2 holds the stored contents in the state C. When the control unit 154 receives a state restoration signal from the central control device 140 or the controller 152 when the control state of the control unit 154 is the state E, the control unit 154 stores the second storage unit 156-2. Read out the status C. Then, the control unit 154 controls the state of the blind 150 based on the state C.

(Effects of the first embodiment)
As described above, according to the present embodiment, the state information regarding the state of the blind 150 at the past time is stored in the second storage unit 156-2 in which the stored contents are not overwritten. Even if there is a change in the state of the blind 150 by control, it is possible to return to the desired blind 150 state based on the state information at the past time point.

Second Embodiment
A second embodiment of the present invention will be described with reference to FIGS. In this embodiment, an external control device is connected to the central control device that controls the control and status of the blinds, and interlock control is performed by the external control device to change the status of the blinds to a status different from the status of control by the central control device. It is designed to perform interrupt control. In the present embodiment, parts different from the first embodiment will be mainly described.

  The blind control system 200 of the present embodiment, as shown in FIG. 4, includes a sunshine detection device 210 installed on the roof of a building, a floor relay device 220 installed in the building, a blind communication line 230, and central control. A device 240, a blind 250, an external controller 260, and an external communication line 270 are provided.

  Among the components of the blind control system 200, the sunlight detection device 210, the floor relay device 220, the blind communication line 230, and the central control device 240 are the sunlight detection device 110 in the first embodiment (FIG. 1). Substantially the same as the floor repeater 120, the blind communication line 130, and the central controller 140 can be used.

  As shown in FIG. 5, the blind 250 includes a controller 252, a control unit 254, a storage unit 256 (first and second storage units 256-1 and 256-2), and a slat 258. Be done. These can be substantially similar to the controller 152, the control unit 154, the first and second storage units 156-1 and 156-2, and the slat 158 in the first embodiment (FIG. 2). .

(External controller 260)
The external control device 260 which is a characteristic configuration in the present embodiment will be described.
The external control device 260 transmits a notification signal to the central control device 240 based on information such as air conditioning, lighting, disaster prevention, etc., for example, and causes the central control device 240 to perform interlocking control temporarily. By this interlocking control, the height of the blind 250 and the rotation angle of the slat 258 are controlled. As such an external control device 260, for example, BACnet (Building Automation and Control Networking protocol), which is a communication standard for an intelligent building network, can be used.

  As shown in FIG. 4, the external control device 260 is connected to the central control device 240 by the external communication line 270, and signals are transmitted and received between the external control device 260 and the central control device 240. When the external control device 260 and the central control device 240 are interlocked, a predetermined display can be made on the controller 252 of the blind 250 so that the user can know that. For example, the controller 252 may be provided with a light emitting diode (LED) to blink the LED when the external control device 260 and the central control device 240 are interlocked.

  The configuration of the blind control system 200 according to the present embodiment has been described above. Next, control of the blind 250 in the blind control system 200 will be described with reference to FIG.

  In the control of this embodiment, there are two control modes, remote mode and local mode. In the remote mode, in each blind 250, control by the central controller 240 is prioritized. In the local mode, in each blind 250, control by the controller 252 is prioritized. First, the remote mode will be described.

(Remote mode)
When the control unit 254 performs automatic control to change the state of the blind 250 to state A, state B,... In accordance with an instruction from the central control unit 240, as shown in FIG. 1 stores the state A, the state B,...

  Then, when the external control device 260 transmits a notification signal to the central control device 240 when the state in the control unit 254 is the state C, the control unit 254 performs interlocking control by the signal from the central control device 240. Thereby, the blind 250 is controlled such that the height and the rotation angle of the slat 258 are based on the notification signal. For example, the height of the blind 250 controlled based on the notification signal is 1, and the angle is 15.

  At the same time, the control unit 254 stores the state C in the second storage unit 256-2. The data stored in the second storage unit 256-2 at this time is a value of height: 8, angle: 8, which is the height of the blind 250 in state C and the rotation angle of the slat 258. The second storage unit 256-2 stores the state of automatic control at the time when the control unit 254 starts interlocked control, and does not store other states. Therefore, the second storage unit 256-2 stores only the state C.

  Thereafter, interlock control is performed in the control unit 254, so the state of the blind 150 is changed to height: 1, angle: 15. The state D is stored in the first storage unit 256-1 in an overwrite manner, but is not stored in the second storage unit 256-2. Further, since automatic control is interrupted during interlocking control, the control unit 254 does not receive automatic control data from the central control device 240. For this reason, the control unit 254 does not receive the data of the angle: 7 from the central control device 240 at the next cycle of automatic control, and remains in the state D under interlocked control from the external control device 260.

  Since interlocked control is still performed in the next automatic control cycle, the control unit 254 receives only interlocked control data from the external control device 260 without receiving data of the angle: 5 from the central control device 240. . Thereby, the state of automatic control in the control unit 254 is changed to the state E. This state E is stored in the first storage unit 256-1 as being overwritten, but is not stored in the second storage unit 256-2.

  Then, when the transmission of the notification signal ends in the middle of the cycle in which the state is changed from the state E to the next state, the interlocking between the external control device 260 and the central control device 253 is released. As a result, the blind 250 returns to automatic control by the control unit 254, and at this timing, the central control device 240 transmits a state restoration signal to the control unit 254. Thereby, as shown in FIG. 6, the control unit 254 reads the state C stored in the second storage unit 256-2 and controls the state of the blind 250 based on the state C.

  If the state restoration signal is not transmitted from central control unit 240 to control unit 254 at the timing when interlock control returns to automatic control, control unit 254 reads state E from first storage unit 256-1, and blind 250 , State E will be controlled. The height of this state is the state before the interlock control starts, and the height of the blind 250 when the automatic control of the main body is continued may be significantly different from 8: the state of the blind 250 is The possibility of not being in the desired state (height) is high.

  However, in the present embodiment, since the control unit 254 can control the state of the blind 250 based on the state C at the timing when the interlock control returns to the automatic control, the state of the blind 250 returned to the automatic control is desired. In the next automatic control cycle, it is possible to restore the original automatic control to the blind state.

  In the above description, when interlocking with the external control device 260, the state of the blind 250 at the time when interlocking control is started is automatically stored, but a state retention signal is transmitted to the control unit 254 at an arbitrary timing. And the state at that time may be stored. Further, the state recovery signal may be transmitted to the control unit 254 at an arbitrary timing.

  The control of the remote mode has been described above. Next, control of the local mode will be described.

(Local mode)
In the local mode, when interlocking between the external control device 260 and the central control device 240 is released, control by the controller 252 has priority over control by the central control device 240 in each blind 250. The user transmits a state holding signal and a state restoring signal at an arbitrary timing from the controller 252 to the control unit 254 to store the state of the blind 250 at an arbitrary time point in the second storage means 255 or automatically from interlock control. Even after returning to control, the state of the blind 250 can be restored at any timing.

(Effect of the second embodiment)
As described above, according to this embodiment, the state information on the state of the blind 250 at the time when the notification signal is transmitted from the external control device 260 can be stored in the second storage unit 256-2 in which the stored contents are not overwritten. Thus, when the interlock with the external control device 260 is released, the state of the blind 250 can be returned to the desired state based on the state information at the time the notification signal is transmitted from the external storage device 260. It is possible.

  In the remote mode, at least one of the state of the blind 250 at the time of receiving the notification signal or the state of the blind 250 based on the control signal transmitted at a predetermined cycle may be stored in the second storage unit 256-2. Therefore, when the interlocking with the external control device 260 is released, the state of the blind 250 can be controlled based on the stored state information. Therefore, the open / close state reflecting the automatic control can be made.

  Furthermore, in the local mode, at least one of the state of the blind at the time of receiving the notification signal or the state of the blind based on the control signal transmitted in a predetermined cycle can be stored in the second storage unit 256-2. When the interlock with the external control device 260 is released, even if there is a change in the state of the blind 250, the state of the blind 250 can be controlled based on the stored state information. Therefore, the state of the blind 250 reflecting the operation at hand can be made.

  In addition, although the structure shown in FIG. 4 was demonstrated as a blind control system 200 in this embodiment, it is good also as a structure as shown in FIG. In the configuration example shown in FIG. 7, the external control device 260 is connected not only to the central control device 240 but also to each floor relay device 220 by the external communication line 270. With this configuration as well, control similar to that of the configuration shown in FIG. 4 is possible.

  Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the appended claims, and of course these also fall within the technical scope of the present invention. It is understood.

  For example, in the above embodiment, one second storage unit (156-2, 256-2) whose stored contents are not overwritten is provided in the storage unit (156, 256), and one state (state C) is stored. Although the present invention has been described, the present invention is not limited thereto. A plurality of storage units corresponding to the second storage unit may be provided to store a plurality of state information. And controlling the state of the blind based on one of the plurality of state information by including information for selecting one of the plurality of stored state information in the state restoration signal. It is possible. In the above embodiment, automatic control is interrupted during interlocking control with the external control device 260, but the control unit 254 receives each state data under automatic control from the central control device 240 and stores it in the storage unit. It may be made to be able to memorize. According to this, since the latest automatic control data is stored in the storage unit, it is possible to restore the desired open / close state immediately upon automatic control return.

  Moreover, in the said embodiment, although the "height" and the "angle" of the blind were demonstrated to the example as a blind's state decompress | restored by a state decompression | restoration signal, this invention is not limited to this. Other states of the blind may be restored as an object to be restored by the state restoration signal, and further, various devices of the blind control system, for example, various states of the central control unit and the controller (for example Invalidation, change of operation mode, priority of operation, etc. may be restored.

  Furthermore, although the example which controls several blinds by a central control unit was demonstrated in the said embodiment, this invention is not limited to this. Even when automatic control is performed by the blind alone without using the central control unit, it is possible to store the state of the blind and restore the stored state as in the above embodiment.

  Moreover, although the said embodiment mentioned and mentioned as an example the horizontal blind, this invention is not limited to this, It can apply to arbitrary motorized switchgears, such as a vertical blind, a roll screen, a curtain, and a shutter. . In the case of such a blind, for example, in the case of a vertical blind, the degree of the rotation angle of the louver and the degree of the movement position of the louver can be used as the state of the blind to be controlled. Further, in the roll clone, the degree of elevation height of the screen, the degree of movement position of the fabric in the curtain, the degree of elevation height of the shutter in the shutter, and the like can be used.

100 blind control system (first embodiment)
110 sunshine detection apparatus 120 floor relay apparatus 130 blind communication line 140 central control apparatus 150 blind 152 controller 154 control section 156-1 first storage section 156-2 second storage section 158 slat 200 blind control system (second embodiment)
260 External control unit 270 External communication line

Claims (5)

With multiple blinds (150, 250),
A central controller (140, 240) connected to the plurality of blinds to control the condition of the blinds;
A controller (152, 252) connected to one or more blinds;
Equipped with
In each of the blinds, in the blind control system, a state control signal for controlling the state of the blinds is transmitted from the central controller or the controller.
Each blind is
State control means (154, 254) for controlling the state of the blind;
State information storage means (156-2, 256-2) for storing state information related to the state of the blind at any time;
Equipped with
The state control means stores the state information on the state of the blind, and then stores the state restoration signal for instructing restoration of the state of the blind from the central control unit or the controller, the state information stored in the state information storage means Control the state of the blind based on the state information,
It further comprises an external controller (260) for controlling the blinds in conjunction with the central controller,
When the notification signal is transmitted from the external control device to the central control device, the state information at the time when the notification signal is transmitted is stored in the state information storage means.
The blind control system, wherein the central control unit transmits the state restoration signal when the central control unit and the external control unit are released from interlocking. With multiple blinds (150, 250),
A central controller (140, 240) connected to the plurality of blinds to control the condition of the blinds;
A controller (152, 252) connected to one or more blinds;
Equipped with
In each of the blinds, in the blind control system, a state control signal for controlling the state of the blinds is transmitted from the central controller or the controller.
Each blind is
State control means (154, 254) for controlling the state of the blind;
State information storage means (156-2, 256-2) for storing state information related to the state of the blind at any time;
Equipped with
When the state control means stores state information on the state of the blind and then receives a state restoration signal instructing restoration of the state of the blind, the state control means stores the state information of the blind based on the state information stored in the state information storage means. Control the state,
It further comprises an external controller (260) for controlling the blinds in conjunction with the central controller,
When the notification signal is transmitted from the external control device, the state information at the time when the notification signal is transmitted is stored in the state information storage means,
A blind control system, wherein a blind receives the state recovery signal when the interlock with the external control device is released. The state information storage means can store a plurality of the state information,
The blind control according to claim 1 or 2 , wherein the state restoration signal includes information for selecting one of a plurality of state information stored in the state information storage means. system. The central controller transmits a control signal to each of the blinds at a predetermined cycle,
Each of the blinds is controlled by either a remote mode in which control from the central control unit is prioritized or a local mode in which control from the controller is prioritized;
In the remote mode, when the notification signal is transmitted from the external control device, at least one of the state of the blind at the time of receiving the notification signal or the state of the blind based on the control signal transmitted in the predetermined cycle is Stored in the state information storage means,
When the interlock between the central control unit and the external control unit is released after receiving the notification signal, the blinds are finally stored in the state information storage unit. The blind control system according to any one of claims 1 to 3 . The central controller transmits a control signal to each of the blinds at a predetermined cycle,
Each of the blinds is controlled by either a remote mode in which control from the central control unit is prioritized or a local mode in which control from the controller is prioritized;
In the local mode, when the notification signal is transmitted from the external control device, at least one of the state of the blind at the time of receiving the notification signal or the state of the blind based on the control signal transmitted in the predetermined cycle is Stored in the state information storage means,
After receiving the notification signal, the integration with the central control unit and the external control device is released, each blind is characterized by a state of the notification signal reception time, claims 1 to 4 Blind control system according to any of the.