JP7655804B2 - Control device - Google Patents

Description

This embodiment relates to controlling the raising and lowering of a shielding material in an electric shielding device.

Conventionally, there is known an electric shielding device that can raise and lower upper and lower shielding materials that are vertically connected in the same direction (see Patent Document 1). When this electric shielding device receives a further raising signal while the upper shielding material is rising, the lower shielding material also begins to rise. Furthermore, the electric shielding device stops the rising operation of the upper shielding material when the upper shielding material reaches its upper limit position, and stops the rising operation of the lower shielding material when the lower shielding material is in the same position as the upper shielding material within a predetermined range. However, with this electric shielding device, the upper and lower shielding materials are always raised and lowered at a constant speed, so in many cases the upper and lower shielding materials reach their stop positions at different times.

JP 2020-033802 A

We provide a technology that can roughly synchronize the timing at which the rising and falling upper and lower shielding materials reach their stopping positions.

In order to solve the above-mentioned problems, one aspect of the present invention is a control device that controls an electric shielding device in which a first moving member provided below the lower shielding member of two shielding members provided in a vertically connected arrangement, and a second moving member provided between the upper shielding member and the lower shielding member of the two shielding members, can be raised and lowered independently by the driving force of a motor, and includes a speed calculation unit that calculates the lifting and lowering speed of at least one of the first moving member and the second moving member as an adjustment speed based on a first moving distance that is the distance from the current position of the first moving member to the target position of the first moving member and a second moving distance that is the distance from the current position of the second moving member to the target position of the second moving member, so that the first moving member and the second moving member reach their target positions approximately simultaneously, and a lifting and lowering control unit that lifts and lowers the at least one moving member at the calculated adjustment speed.

According to the present invention, the timing at which the rising and falling upper and lower shielding materials reach their stopping positions can be roughly synchronized.

FIG. 1 is a front view showing a configuration of an electric shading device according to an embodiment. 1 is a schematic plan view perspective view showing a configuration of an electric shading device according to an embodiment. FIG. 2 is a schematic diagram showing a configuration of a first operating device. FIG. 4 is a schematic diagram showing a configuration of a second operating device. FIG. 2 is a block diagram showing a hardware configuration of a control device. FIG. 2 is a block diagram showing a functional configuration of a control device. 4 is a flowchart showing the operation of the control device. 13 is a flowchart showing an operation of a bottom rail control process. 13 is a flowchart showing the operation of an intermediate bar control process. 13 is a flowchart showing the operation of a collective control process. 13 is a flowchart showing the operation of a speed adjustment process. 13 is an explanatory diagram for calculating the ascending speed when the bottom rail is accelerated or the intermediate bar is decelerated. FIG. 13 is an explanatory diagram for calculating the descent speed when the bottom rail is accelerated or the intermediate bar is decelerated. FIG. 13 is an explanatory diagram for calculating the rising speed when the intermediate bar is accelerated or the bottom rail is decelerated. FIG. 13 is an explanatory diagram for calculating the descent speed when the intermediate bar is accelerated or the bottom rail is decelerated. FIG.

The following describes an embodiment of the present invention with reference to the drawings. In this embodiment, an electric shading device to which the present invention is applied is taken as an example for a shading material, a pleated screen equipped with two types of screens that can be raised and lowered. In this embodiment, the surface facing the room when the electric shading device is installed is referred to as the front, the surface facing the outside of the room as the back, the direction consisting of the front and back is referred to as the front-to-rear direction, and the longitudinal direction of the electric shading device is referred to as the left-to-right direction. In this specification and drawings, components having substantially the same functions are given the same reference numerals to avoid redundant description.

(Overall configuration) The overall configuration of the electric shading device according to this embodiment will be described. Figures 1 and 2 are a front view and a schematic plan view perspective view, respectively, showing the configuration of the electric shading device according to this embodiment. Note that Figure 1 shows the electric shading device with the bottom rail lowered to the lower end position, and only the inside of the head box is shown.

As shown in Figures 1 and 2, the electric shading device 1 according to this embodiment includes a head box 2, a bottom rail 31 as a first moving member, two lifting cords 32 formed in the shape of strings or tapes, a screen 33 as a lower shading material, an intermediate bar 41 as a second moving member, two dimmer cords 42 formed in the shape of strings or tapes, and a screen 43 as an upper shading material.

The head box 2 is formed in a generally rectangular parallelepiped shape that defines an internal storage space, and is fixed to a window frame (not shown) or the like via multiple brackets 21. The head box 2 accommodates a first drive shaft 201A, two first winding drums 202A, a first motor 203A, a second drive shaft 201B, two second winding drums 202B, a second motor 203B, a power supply unit 204, and a control device 3.

The first drive shaft 201A, the two first winding drums 202A, and the first motor 203A constitute a first drive system that raises and lowers the bottom rail 31. The second drive shaft 201B, the two second winding drums 202B, and the second motor 203B constitute a second drive system that raises and lowers the intermediate bar 41. In this embodiment, the first drive system is arranged on the rear side, and the second drive system is arranged on the front side, and the first drive system and the second drive system are arranged side by side at different positions in the front-to-rear direction. Note that here, the number of first winding drums 202A and second winding drums 202B is two each, but three or more may be provided.

The first drive shaft 201A and the second drive shaft 201B are rectangular columnar members extending in the left-right direction, and are rotatably supported by the first motor 203A and the second motor 203B in the head box 2 with their axial centers facing the left-right direction. The two first winding drums 202A are each passed through the first drive shaft 201A so as to rotate together with the first drive shaft 201A, and one end of the corresponding one of the two lifting cords 32 is connected to the first drive shaft 201A so as to be able to be wound and unwound. The two second winding drums 202B are each passed through the second drive shaft 201B so as to rotate together with the second drive shaft 201B, and one end of the corresponding one of the two light control cords 42 is connected to the second drive shaft 201B so as to be able to be wound and unwound.

The bottom rail 31 is a member formed long in the left-right direction, to which the other ends of the two lifting cords 32 are connected, suspended from the head box 2 so as to be located at the lowest end of the motorized shading device 1. The intermediate bar 41 is a member formed long in the left-right direction, to which the other ends of the two dimmer cords 42 are connected, suspended from the head box 2 so as to be located between the head box 2 and the bottom rail 31 in the up-down direction.

The screen 33 is a shielding member whose upper end is connected to the underside of the intermediate bar 41 and whose lower end is connected to the upper surface of the bottom rail 31, formed in a pleat shape that can be folded up and down, and through which two lifting cords 32 are partially inserted in the vertical direction. The screen 43 is a shielding member whose upper end is connected to the underside of the head box 2 and whose lower end is connected to the upper surface of the intermediate bar 41, formed in a pleat shape that can be folded up and down, and through which two dimmer cords 42 are partially inserted in the vertical direction.

The first motor 203A drives the bottom rail 31 to move up and down by rotating the first drive shaft 201A. The second motor 203B drives the intermediate bar 41 to move up and down by rotating the second drive shaft 201B. Each of the first motor 203A and the second motor 203B is provided with an encoder capable of detecting the amount of rotation, the direction of rotation, and the speed of rotation. The power supply unit 204 supplies power obtained via the outlet plug 205 led out to the outside of the head box 2 to the first motor 203A, the second motor 203B, and the control device 3. The control device 3 controls the direction of rotation and the speed of rotation of the first motor 203A and the second motor 203B, as described in detail later, to control the lifting and lowering of the bottom rail 31 and the intermediate bar 41.

(Configuration of the operation device)
The configuration of the operation device will be described below. Figures 3 and 4 are schematic diagrams showing the configurations of the first and second operation devices, respectively.

As shown in FIG. 3, the first operating device 4A is connected by wire or wirelessly to the electric shading device 1, specifically the control device 3, so as to be able to communicate with it, and transmits to the control device 3 control signals indicating operation instructions relating to the lifting and lowering control of the bottom rail 31 and the middle bar 41. The first operating device 4A includes a bottom rail up switch 401, a bottom rail down switch 402, a full stop switch 403, a middle bar up switch 411, and a middle bar down switch 412.

When the bottom rail up switch 401 is pressed, a rise signal is sent to raise the bottom rail 31. When the bottom rail down switch 402 is pressed, a fall signal is sent to lower the bottom rail 31. When the full stop switch 403 is pressed, a full stop signal is sent to stop the raising and lowering of the bottom rail 31 and middle bar 41. When the middle bar up switch 411 is pressed, a rise signal is sent to raise the middle bar 41. When the middle bar down switch 412 is pressed, a fall signal is sent to lower the middle bar 41.

In addition, when either the bottom rail raising switch 401 or the middle bar raising switch 411 is pressed and held, a raising signal is sent to raise the bottom rail 31 and middle bar 41. This raising signal may be sent when the bottom rail raising switch 401 and middle bar raising switch 411 are pressed simultaneously, or when a separate dedicated switch is pressed. Note that, although the above-mentioned switch operation is used to send a raising signal to raise the bottom rail 31 and middle bar 41, this is not necessarily a limitation. For example, a control unit (not shown) connected to the control device 3 may determine that the bottom rail 31 and middle bar 41 are to be raised when it detects the above-mentioned switch operation.

In addition, when either the bottom rail lowering switch 402 or the intermediate bar lowering switch 412 is pressed and held, a lowering signal is sent to lower the bottom rail 31 and intermediate bar 41. This lowering signal may be sent when the bottom rail lowering switch 402 and intermediate bar lowering switch 412 are pressed simultaneously, or when a separate dedicated switch is pressed. Note that, although the above-mentioned switch operation is used to send a lowering signal to lower the bottom rail 31 and intermediate bar 41, this is not necessarily a limitation. For example, a control unit (not shown) connected to the control device 3 may determine that the bottom rail 31 and intermediate bar 41 are to be lowered when it detects the above-mentioned switch operation.

As shown in FIG. 4, the second operating device 4B is wired or wirelessly connected to at least one or more control devices 3 for communication, and is different from the first operating device 4A in that it further includes a selection switch group 50. The selection switch group 50 includes eight switches for individually designating specific electric shading devices 1 as a means for transmitting control signals, and one switch for designating all electric shading devices 1 connected to the second operating device 4B.

The above-mentioned control signals transmitted by the first operating device 4A and the second operating device 4B may be transmitted by a central control device communicatively connected to at least one or more electric shading devices 1. In the following description, the first operating device 4A and the second operating device 4B will not be distinguished from each other, and will be collectively referred to as the operating device 4. The various control signals described above may be contact signals or commands.

(Configuration of the control device)
The hardware configuration and the functional configuration of the control device will be described below. Fig. 5 and Fig. 6 are block diagrams showing the hardware configuration and the functional configuration of the control device, respectively.

As shown in FIG. 5, the control device 3 includes, as hardware, a CPU (Central Processing Unit) 311, a memory 312, and an input/output IF (Interface) 313. The CPU 311 and memory 312 work together to execute various functions. The input/output IF 313 inputs and outputs data to and from the first motor 203A, the second motor 203B, and the operating device 4, which are communicatively connected to the control device 3.

As shown in FIG. 6, the control device 3 has the following functions: a signal receiving unit 301, a state determination unit 303, a distance determination unit 304, a speed calculation unit 305, an elevation control unit 306, and a mode setting unit 307.

The signal receiving unit 301 receives a control signal transmitted by the operating device 4. The state determining unit 303 determines the control target and type of the control signal received by the signal receiving unit 301, thereby determining the drive status of the bottom rail 31 and the intermediate bar 41. The control target may be the bottom rail 31, the intermediate bar 41, or the bottom rail 31 and the intermediate bar 41. The types may be an up signal, a down signal, or a full stop signal. For simplicity, the full stop signal will not be taken into consideration in the following explanation.

The distance determination unit 304 performs a comparison determination based on the distance between the current position of the bottom rail 31 and the stop position and the distance between the current position of the intermediate bar 41 and the stop position. Based on the determination result by the distance determination unit 304, the speed calculation unit 305 calculates an adjustment speed, which is an ascent/descent speed that is increased or decreased from the set speed, so that the timing at which the bottom rail 31 or the intermediate bar 41 reach the stop position is approximately the same. Here, the set speed is a preset ascent/descent speed.

The lifting/lowering control unit 306 drives the first motor 203A or the second motor 203B to raise and lower the bottom rail 31 and the intermediate bar 41 at a set speed or an adjusted speed. The mode setting unit 307 sets the motorized shading device 1 to either an increased speed mode or a decreased speed mode based on the selection of the user or the manufacturer. In the increased speed mode, the adjusted speed is calculated as the increased lifting/lowering speed, and in the decreased speed mode, the adjusted speed is calculated as the decreased lifting/lowering speed.

(Operation of the control device)
The operation of the control device will now be described with reference to a flowchart of FIG 7.

As shown in FIG. 7, first, the state determination unit 303 determines whether or not a control signal has been received by the signal receiving unit 301 (S101).

If a control signal is received (S101, YES), the state determination unit 303 determines whether the control object of the received control signal is the bottom rail 31 and the intermediate bar 41 (S102).

If the control object is not the bottom rail 31 or the intermediate bar 41 (S102, NO), the state determination unit 303 determines whether the control object by the control signal is only the bottom rail 31 (S103).

If the control target is only the bottom rail 31 (S103, YES), the bottom rail control process described below is executed (S104), and the state determination unit 303 again determines whether or not a control signal has been received by the signal receiving unit 301 (S101).

On the other hand, if the control object is not only the bottom rail 31, i.e., if the control object is only the intermediate bar 41 (S103, NO), the intermediate bar control process described below is executed (S105), and the state determination unit 303 again determines whether or not a control signal has been received by the signal receiving unit 301 (S101).

Also, in step S102, if the control object is the bottom rail 31 and the intermediate bar 41 (S102, YES), the collective control process described below is executed (S106), and the state determination unit 303 again determines whether or not a control signal has been received by the signal receiving unit 301 (S101).

Also, in step S101, if a control signal is not received (S101, NO), the state determination unit 303 again determines whether or not a control signal has been received by the signal receiving unit 301 (S101).

(Bottom rail control process)
The bottom rail control process will now be described with reference to a flowchart of FIG.

As shown in FIG. 8, first, the state determination unit 303 determines whether the type of the received control signal is an up signal (S201).

If the type of the control signal is an up signal (S201, YES), the state determination unit 303 determines whether the bottom rail 31 can be driven up (S202). Specifically, the state determination unit 303 determines that the bottom rail 31 can be driven up when the bottom rail 31 is located below the first upper limit position and is located below the position of the intermediate bar 41 by a predetermined distance or more. Here, the first upper limit position is located at the upper end of the lifting range of the bottom rail 31, and may be set in advance prior to operation of the motorized shading device 1, or may be set appropriately after use begins. The predetermined distance here corresponds to the folding allowance when the screen 33 is folded to the maximum, and is the distance when the intermediate bar 41 and the bottom rail 31 are closest to each other.

If the bottom rail 31 can be driven upward (S202, YES), the state determination unit 303 determines whether the intermediate bar 41 is being driven upward (S203).

If the intermediate bar 41 is being driven upward (S203, YES), the speed adjustment process described below is executed (S204), and the lift control unit 306 starts driving the bottom rail 31 upward to reach the first upper limit position based on the processing result of the speed adjustment process (S205), and the bottom rail control process is terminated.

On the other hand, if the intermediate bar 41 is not being driven upward (S203, NO), the lifting control unit 306 starts driving the bottom rail 31 upward to approach the intermediate bar 41 at the set speed (S206), and the bottom rail control process is terminated.

Also, in step S202, if the bottom rail 31 cannot be driven upward (S202, NO), the bottom rail control process is terminated.

In addition, in step S201, if the control signal is not an up signal, i.e., if the control signal is a down signal (S201, NO), the state determination unit 303 determines whether the bottom rail 31 can be driven downward (S210). Specifically, the state determination unit 303 determines that the bottom rail 31 can be driven downward when the bottom rail 31 is located above the first lower limit position. Here, the first lower limit position is located at the lower end of the lifting range of the bottom rail 31, and may be set in advance prior to operation of the motorized shading device 1, or may be set appropriately after use begins.

If the bottom rail 31 can be driven downward (S210, YES), the state determination unit 303 determines whether the intermediate bar 41 is being driven downward (S211).

If the intermediate bar 41 is being driven downward (S211, YES), the speed adjustment process described below is executed (S212), and the lift control unit 306 starts driving the bottom rail 31 downward to reach the first lower limit position based on the processing result of the speed adjustment process (S213), and the bottom rail control process is terminated.

On the other hand, if the intermediate bar 41 is not being driven downward (S211, NO), the lifting control unit 306 starts driving the bottom rail 31 downward to reach the first lower limit position at the set speed (S214), and the bottom rail control process is terminated.

Also, in step S210, if the bottom rail 31 cannot be driven downward (S210, NO), the bottom rail control process is terminated.

(Intermediate bar control process)
The intermediate bar control process will now be described with reference to a flowchart of FIG.

As shown in FIG. 9, first, the state determination unit 303 determines whether the type of the received control signal is an up signal (S301).

If the type of the control signal is an up signal (S301, YES), the state determination unit 303 determines whether the intermediate bar 41 can be driven to rise (S302). Specifically, the state determination unit 303 determines that the intermediate bar 41 can be driven to rise when the intermediate bar 41 is located below the second upper limit position. Here, the second upper limit position is located at the upper end of the lifting range of the intermediate bar 41, and may be set in advance prior to operation of the motorized shading device 1, or may be set appropriately after use begins.

If the intermediate bar 41 can be driven upward (S302, YES), the state determination unit 303 determines whether the bottom rail 31 is being driven upward (S303).

If the bottom rail 31 is being driven upward (S303, YES), the speed adjustment process described below is executed (S304), and the lift control unit 306 starts driving the intermediate bar 41 upward to reach the second upper limit position based on the results of the speed adjustment process (S305), and the intermediate bar control process is terminated.

On the other hand, if the bottom rail 31 is not being driven upward (S303, NO), the lifting control unit 306 starts driving the intermediate bar 41 upward to reach the second upper limit position at the set speed (S306), and the intermediate bar control process is terminated.

Also, in step S302, if the intermediate bar 41 cannot be driven upward (S302, NO), the intermediate bar control process is terminated.

In addition, in step S301, if the control signal is not an up signal, i.e., if the control signal is a down signal (S301, NO), the state determination unit 303 determines whether the intermediate bar 41 can be driven downward (S310). Specifically, the state determination unit 303 determines that the intermediate bar 41 can be driven downward when it is located above the second lower limit position and above the bottom rail 31 by a predetermined distance or more. Here, the second lower limit position is located at the lower end of the lifting range of the intermediate bar 41, and may be set in advance prior to operation of the motorized shading device 1, or may be set appropriately after use begins. In addition, the predetermined distance corresponds to the folding allowance when the screen 33 is folded to the maximum, and is the distance when the intermediate bar 41 and the bottom rail 31 are closest to each other.

If the intermediate bar 41 can be driven downward (S310, YES), the state determination unit 303 determines whether the bottom rail 31 is being driven downward (S311).

If the bottom rail 31 is being driven downward (S311, YES), the speed adjustment process described below is executed (S312), and the lift control unit 306 starts driving the intermediate bar 41 downward to reach the second lower limit position based on the results of the speed adjustment process (S313), and the intermediate bar control process is terminated.

On the other hand, if the bottom rail 31 is not being driven downward (S311, NO), the lifting control unit 306 starts driving the intermediate bar 41 downward to reach the second lower limit position at the set speed (S314), and the intermediate bar control process is terminated.

Also, in step S310, if the intermediate bar 41 cannot be driven downward (S310, NO), the intermediate bar control process is terminated.

(Collective control processing)
The general control process will now be described with reference to a flowchart of FIG.

As shown in FIG. 10, first, the state determination unit 303 determines whether the type of the received control signal is an up signal (S401).

If the type of the control signal is an up signal (S401, YES), the state determination unit 303 determines whether the bottom rail 31 and the intermediate bar 41 can be driven up (S402). Specifically, the state determination unit 303 determines that the bottom rail 31 and the intermediate bar 41 can be driven up when the bottom rail 31 is located below the first upper limit position and the intermediate bar 41 is located below the second upper limit position.

If the bottom rail 31 and the intermediate bar 41 can be driven upward (S402, YES),
The speed adjustment process described below is executed (S404), and the lifting control unit 306 starts the upward drive of the bottom rail 31 to reach the first upper limit position and the upward drive of the intermediate bar 41 to reach the second upper limit position based on the processing result of the speed adjustment process (S405), and the collective control process is terminated.

On the other hand, if the bottom rail 31 and the intermediate bar 41 cannot be driven upward (S402, NO), the collective control process is terminated.

In addition, in step S401, if the control signal is not an up signal, i.e., if the control signal is a down signal (S401, NO), the state determination unit 303 determines whether the bottom rail 31 and the intermediate bar 41 can be driven downward (S410). Specifically, the state determination unit 303 determines that the bottom rail 31 and the intermediate bar 41 can be driven downward when the bottom rail 31 is above the first lower limit position and the intermediate bar 41 is above the second lower limit position.

If the bottom rail 31 and intermediate bar 41 can be driven downward (S410, YES), the speed adjustment process described below is executed (S412), and the lift control unit 306 starts the downward drive of the bottom rail 31 to reach the first lower limit position and the downward drive of the intermediate bar 41 to reach the second lower limit position based on the processing result of the speed adjustment process (S413), and the collective control process is terminated.

On the other hand, in step S410, if the bottom rail 31 and the intermediate bar 41 cannot be driven downward (S410, NO), the collective control process is terminated.

(Speed adjustment process)
The speed adjustment process will be described. Fig. 11 is a flow chart showing the operation of the speed adjustment process. Figs. 12 and 13 are explanatory diagrams for calculating the rising speed and the falling speed when the bottom rail is accelerated or the intermediate bar is decelerated, respectively. Figs. 14 and 15 are explanatory diagrams for calculating the rising speed and the falling speed when the intermediate bar is accelerated or the bottom rail is decelerated.

As shown in FIG. 11, first, the state determination unit 303 determines whether the bottom rail 31 and the intermediate bar 41 are close to each other (S501). Here, the state where the bottom rail 31 and the intermediate bar 41 are close to each other indicates a state where the distance between the bottom rail 31 and the intermediate bar 41 is within a predetermined distance range.

When the bottom rail 31 and the intermediate bar 41 are close to each other (S501, YES), the state determination unit 303 determines whether the bottom rail 31 and the intermediate bar 41 are targets for upward drive (S502). Here, an upward drive target indicates that the target is controlled by an upward signal. Similarly, a downward drive target indicates that the target is controlled by a downward signal.

On the other hand, if the bottom rail 31 and the intermediate bar 41 are not close to each other (S501, NO), the distance determination unit 304 determines whether the first movement distance ML1 and the second movement distance ML2 are equal (S505). If the first movement distance ML1 and the second movement distance ML2 are equal (S505, YES), the state determination unit 303 determines whether the bottom rail 31 and the intermediate bar 41 are to be driven upward (S502).

Now, the first movement distance and the second movement distance will be explained. As shown in Figures 12 to 15, the first movement distance ML1 is the distance from the current position CP1 of the bottom rail 31 to the first upper limit position UL1 or the first lower limit position LL1 as the position reached by the upward drive or downward drive. The second movement distance ML2 is the distance from the current position CP2 of the intermediate bar 41 to the second upper limit position UL2 or the second lower limit position LL2 as the position reached by the upward drive or downward drive.

The first upper limit position UL1, the first lower limit position LL1, the second upper limit position UL2, and the second lower limit position LL2 can all be changed by the user to other positions. The first upper limit position UL1 can be changed to any position between the pre-change first upper limit position UL1 and the pre-change first lower limit position LL1. FIG. 14 shows the first upper limit position MUL1 changed by the user as an example. The first lower limit position LL1 can also be changed to any position between the pre-change second lower limit position LL2 and the pre-change first lower limit position LL1. That is, the user can change the first upper limit position UL1 and the first lower limit position LL1 to any position within the maximum range in which the bottom rail 31 can be raised and lowered.

The second upper limit position UL2 can be changed to any position between the pre-change second upper limit position UL2 and the pre-change second lower limit position LL2. The second lower limit position LL2 can be changed to any position between the pre-change second upper limit position UL2 and the pre-change second lower limit position LL2. FIG. 13 shows an example of a second lower limit position MLL2 changed by a user. That is, the user can change the second upper limit position UL2 and the second lower limit position LL2 to any position within the maximum range in which the intermediate bar 41 can be raised and lowered.

If the bottom rail 31 and the intermediate bar 41 are to be driven upward (S502, YES), the lifting control unit 306 drives only the intermediate bar 41 upward a predetermined distance (S503). On the other hand, if the bottom rail 31 and the intermediate bar 41 are not to be driven upward, i.e., if the bottom rail 31 and the intermediate bar 41 are to be driven downward (S502, NO), the lifting control unit 306 drives only the bottom rail 31 downward a predetermined distance (S504). This ensures a predetermined distance between the bottom rail 31 and the intermediate bar 41.

In this way, when the bottom rail 31 and the intermediate bar 41 are close to each other or when the first travel distance ML1 and the second travel distance ML2 are equal, only the intermediate bar 41 is driven upward when an upward drive is performed, and only the bottom rail 31 is driven downward when a downward drive is performed, so that the bottom rail 31 and the intermediate bar 41 can be separated from each other prior to the upward drive or downward drive of the bottom rail 31 and the intermediate bar 41. This makes it possible to prevent a situation in which the bottom rail 31 and the intermediate bar 41 come closer to each other than a certain distance during the upward and downward drive by adjusting the drive speed.

As shown in FIG. 11, after execution of steps S503 and S504, or in step S505, if the first moving distance ML1 and the second moving distance ML2 are not equal (S505, NO), the distance determination unit 304 determines whether the first moving distance ML1 is greater than the second moving distance ML2 (S512).

If the first movement distance ML1 is greater than the second movement distance ML2 (S512, YES), the speed calculation unit 305 determines whether the mode setting unit 307 has set the motorized shading device 1 to deceleration mode (S513).

If the deceleration mode is set (S513, YES), the speed calculation unit 305 calculates an adjustment speed for decelerating the lifting and lowering speed of the intermediate bar 41 based on the first moving distance ML1 and the second moving distance ML2 (S514), and the speed adjustment process is terminated. On the other hand, if the deceleration mode is not set, that is, if the acceleration mode is set (S513, NO), the speed calculation unit 305 calculates an adjustment speed for increasing the lifting and lowering speed of the bottom rail 31 based on the first moving distance ML1 and the second moving distance ML2 (S515), and the speed adjustment process is terminated.

Here, the calculation of the specific adjustment speed when the intermediate bar 41 is decelerated or the bottom rail 31 is accelerated will be described with reference to Figures 12 and 13. Figure 12 shows a state in which the first movement distance ML1 at the start of the ascending drive of the bottom rail 31 and the intermediate bar 41 is greater than the second movement distance ML2, that is, the bottom rail 31 is located farther from the arrival position than the intermediate bar 41. In this case, the speed calculation unit 305 calculates the ascending speed of the decelerated intermediate bar 41 or calculates the ascending speed of the accelerated bottom rail 31 so that the bottom rail 31 and the intermediate bar 41 reach the arrival position (first upper limit position UL1, second upper limit position UL2) at the same time. Specifically, the ascending speed of the decelerated intermediate bar 41 is calculated by multiplying the value obtained by dividing the second movement distance ML2 by the first movement distance ML1 by the predetermined ascending speed. In addition, the accelerated ascent speed of the bottom rail 31 is calculated by multiplying the value obtained by dividing the first movement distance ML1 by the second movement distance ML2 by a preset ascent speed.

13 shows a state in which the first moving distance ML1 at the start of the downward drive of the bottom rail 31 and the intermediate bar 41 is greater than the second moving distance ML2, i.e., the bottom rail 31 is located farther from the destination position than the intermediate bar 41. In this case, the speed calculation unit 305 calculates the accelerated downward speed of the bottom rail 31 or the decelerated downward speed of the intermediate bar 41 so that the bottom rail 31 and the intermediate bar 41 reach the destination position (first lower limit position LL1, changed second lower limit position MLL2) at the same time. Specifically, the accelerated downward speed of the bottom rail 31 is calculated by multiplying the value obtained by dividing the first moving distance ML1 by the second moving distance ML2 by the preset downward speed. Also, the decelerated downward speed of the intermediate bar 41 is calculated by multiplying the value obtained by dividing the second moving distance ML2 by the first moving distance ML1 by the preset downward speed.

As shown in FIG. 11, in step S512, if the first moving distance ML1 is not greater than the second moving distance ML2, i.e., if the first moving distance ML1 is less than the second moving distance ML2 (S512, NO), the speed calculation unit 305 determines whether the mode setting unit 307 has set the motorized shading device 1 to the deceleration mode (S523).

If the deceleration mode is set (S523, YES), the speed calculation unit 305 calculates an adjustment speed for decelerating the lifting and lowering speed of the bottom rail 31 based on the first moving distance ML1 and the second moving distance ML2 (S524), and the speed adjustment process is terminated. On the other hand, if the deceleration mode is not set, that is, if the acceleration mode is set (S523, NO), the speed calculation unit 305 calculates an adjustment speed for increasing the lifting and lowering speed of the intermediate bar 41 based on the first moving distance ML1 and the second moving distance ML2 (S525), and the speed adjustment process is terminated.

Here, the calculation of the specific adjustment speed when the bottom rail 31 is decelerated or the intermediate bar 41 is accelerated will be described with reference to Figs. 14 and 15. Fig. 14 shows a state in which the first movement distance ML1 at the start of the ascending drive of the bottom rail 31 and the intermediate bar 41 is smaller than the second movement distance ML2, that is, the intermediate bar 41 is located farther from the arrival position than the bottom rail 31. At this time, the speed calculation unit 305 calculates the ascending speed of the decelerated bottom rail 31 or the ascending speed of the accelerated intermediate bar 41 so that the bottom rail 31 and the intermediate bar 41 reach the arrival position (the changed first upper limit position MUL1, the second upper limit position UL2) at the same time. Specifically, the ascending speed of the decelerated bottom rail 31 is calculated by multiplying the value obtained by dividing the first movement distance ML1 by the second movement distance ML2 by the predetermined ascending speed. In addition, the accelerated ascent speed of the intermediate bar 41 is calculated by multiplying the second movement distance ML2 divided by the first movement distance ML1 by a preset ascent speed.

15 shows a state in which the first moving distance ML1 at the start of the downward drive of the bottom rail 31 and the intermediate bar 41 is smaller than the second moving distance ML2, that is, the intermediate bar 41 is located farther from the destination position than the bottom rail 31. In this case, the speed calculation unit 305 calculates the decelerated descent speed of the bottom rail 31 or calculates the accelerated descent speed of the intermediate bar 41 so that the bottom rail 31 and the intermediate bar 41 reach the destination positions (first lower limit position LL1, second lower limit position LL2) at the same time. Specifically, the decelerated descent speed of the bottom rail 31 is calculated by multiplying the value obtained by dividing the first moving distance ML1 by the second moving distance ML2 by the preset descent speed. Also, the accelerated descent speed of the intermediate bar 41 is calculated by multiplying the value obtained by dividing the second moving distance ML2 by the first moving distance ML1 by the preset descent speed.

As described above, according to the electric shading device 1 of this embodiment, the bottom rail 31 and the intermediate bar 41 can be moved so that they reach the target position at approximately the same time by decelerating one of the bottom rail 31 and the intermediate bar 41 that is closer to the target position and accelerating the other that is farther from the target position. In addition, by decelerating one of the bottom rail 31 and the intermediate bar 41, it is possible to reduce power consumption without increasing the time required for the lift control of the electric shading device 1, and to achieve quieter operation sounds associated with the lift control. In addition, by accelerating the other of the bottom rail 31 and the intermediate bar 41, it is possible to shorten the time required for the lift control of the electric shading device 1.

In this embodiment, the motorized shading device 1 is a pleated screen equipped with two types of screens, but it can be anything that has two shading materials connected in the vertical direction and can be electrically raised and lowered. An example of such a motorized shading device 1 is a blind that has two groups of slats that are connected in the vertical direction, each of which includes multiple slats.

In addition, in this embodiment, the lifting and lowering speed of either the bottom rail 31 or the intermediate bar 41 is adjusted, but the lifting and lowering speeds of both the bottom rail 31 and the intermediate bar 41 may be adjusted simultaneously if they reach their final positions at approximately the same time. In other words, the lifting and lowering speeds of both the bottom rail 31 and the intermediate bar 41 may be adjusted so that they reach their final positions at approximately the same time.

The present invention can be embodied in various other forms without departing from the spirit or main characteristics thereof. Therefore, the above-described embodiments are merely illustrative in all respects and should not be interpreted as limiting. The scope of the present invention is defined by the claims and is not limited in any way by the text of the specification. Furthermore, all modifications, improvements, substitutions and alterations within the scope of the claims are within the scope of the present invention.

1 Electric shading device 3 Control device 31 Bottom rail (first moving member)
33 Screen (lower shielding material)
41 Intermediate bar (second moving member)
44 Screen (upper shielding material)
301 Signal receiving unit 303 State determination unit 304 Distance determination unit 305 Speed calculation unit 306 Lifting control unit

Claims (13)

A control device for controlling an electric shielding device in which a first moving member provided below a lower shielding member of two shielding members provided in a vertically connected arrangement and a second moving member provided between an upper shielding member of the two shielding members and the lower shielding member can be independently raised and lowered by a driving force of a motor,
a speed calculation unit that calculates an elevation speed of at least one of the first moving member and the second moving member as an adjustment speed based on a first moving distance that is a distance from a current position of the first moving member to a target position of the first moving member and a second moving distance that is a distance from a current position of the second moving member to a target position of the second moving member so that the first moving member and the second moving member reach their target positions at approximately the same time;
a lifting control unit that lifts and lowers the at least one moving member at the calculated adjustment speed. a signal receiving unit that receives control signals for respectively raising and lowering the first moving member and the second moving member;
a state determination unit that determines whether the first moving member and the second moving member are raised and lowered in the same direction based on the received control signal,
The control device described in claim 1, characterized in that when it is determined that the first moving member and the second moving member are raised and lowered in the same direction, the speed calculation unit calculates the adjustment speed so that the first moving member and the second moving member reach the arrival position at approximately the same time. the speed calculation unit calculates an elevation speed of one of the first moving member and the second moving member as the adjustment speed,
The control device according to claim 1 or 2, characterized in that the lifting control unit lifts and lowers one of the movable members at the calculated adjusted speed, and lifts and lowers the other movable member at a set speed that is a preset lifting speed. a distance determination unit that compares the first movement distance with the second movement distance,
4. The control device according to claim 1, wherein the speed calculation unit calculates the adjustment speed based on a result of comparison between the first movement distance and the second movement distance. The control device described in claim 4, which cites claim 3, characterized in that when it is determined that the first moving distance is greater than the second moving distance, the speed calculation unit calculates an ascent/descent speed that is an increase in the set speed as the adjustment speed of the first moving member, or calculates an ascent/descent speed that is a decrease in the set speed as the adjustment speed of the second moving member. The control device described in claim 4 or claim 5, which cites claim 3, characterized in that when it is determined that the second moving distance is greater than the first moving distance, the speed calculation unit calculates an ascent /descent speed that increases the set speed as the adjustment speed of the second moving member, or calculates an ascent/descent speed that decreases the set speed as the adjustment speed of the first moving member. 7. The control device according to claim 5 , wherein the speed calculation unit calculates the adjusted speed by multiplying the set speed by a ratio between the first moving distance and the second moving distance. The control device according to claim 7, characterized in that, when it is determined that the first moving distance is greater than the second moving distance, the speed calculation unit calculates the adjustment speed of the first moving member by multiplying the set speed by a value obtained by dividing the first moving distance by the second moving distance, or calculates the adjustment speed of the second moving member by multiplying the set speed by a value obtained by dividing the second moving distance by the first moving distance. The control device according to claim 7 or 8, characterized in that, when it is determined that the second moving distance is greater than the first moving distance, the speed calculation unit calculates the adjustment speed of the second moving member by multiplying the set speed by a value obtained by dividing the second moving distance by the first moving distance, or calculates the adjustment speed of the first moving member by multiplying the set speed by a value obtained by dividing the first moving distance by the second moving distance. the distance determination unit further determines whether or not a distance between the current position of the first movable member and the second movable member is within a predetermined distance range;
The control device described in claim 4, characterized in that when it is determined that the separation distance is within the distance range, the lifting control unit lowers only the first moving member or raises only the second moving member so as to separate the first moving member and the second moving member prior to calculating the adjustment speed. The control device according to claim 10, characterized in that, when it is determined that the first moving member and the second moving member are raised and the separation distance is determined to be within the distance range, the lift control unit raises only the second moving member prior to calculating the adjustment speed. The control device according to claim 10 or 11, characterized in that, when it is determined that the first moving member and the second moving member are to be lowered and the separation distance is determined to be within the distance range, the lift control unit lowers only the first moving member prior to calculating the adjustment speed. The signal receiving unit receives a control signal transmitted by an operating device,
The control device according to claim 2, characterized in that the operating device has at least five input means corresponding to each of the following: sending a control signal to raise the first moving member, sending a control signal to lower the first moving member, sending a control signal to raise the second moving member, sending a control signal to lower the second moving member, and sending a control signal to stop the raising and lowering of the first moving member and the second moving member.