Control System

Abstract

To provide a control system that enables the user to increase the usability of an opening / closing gear.SOLUTION: A control system 50 includes: an opening / closing movement control unit that controls the opening / closing movement of an opening / closing body 30 based on an operation instruction received via an operation device 60 and is capable of performing first opening / closing control and second opening / closing control; a return setting unit for setting a first limit position P1 and a second limit position P2 for when the setting timing arrives. When the setting timing arrives, the opening / closing movement control unit performs the first opening / closing control to open / close and move the open / closing body 30 by a predetermined amount or for a predetermined time when the first operation instruction is received via the operation device 60, and then performs the second opening / closing control, and the return setting unit sets a first limit position P1 and a second limit position P2 by regarding as a trigger the closing direction side end of the opening / closing body 30 having reached a reference position PP by the second opening / closing control.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a control system. [Background technology]

[0002] Conventionally, a technology has been proposed for a shutter device attached to an opening in a building, in which the fully closed and fully open positions of the opening / closing body and a reference position for controlling the opening / closing position of the opening / closing body have been set, and then the reference position setting is lost when the power to the shutter device is turned off (for example, due to a power outage, etc.). This technology allows for resetting the fully closed and fully open positions.

[0003] In such a technique, for example, when a first operation instruction (an instruction to move the opening / closing body so that the position of the end of the opening / closing body in the closing direction approaches a reference position) is received after the power supply to the shutter device is restored after a power outage, the opening / closing body is moved open or closed so that the position of the end of the opening / closing body in the closing direction approaches the reference position, and when the position of the end of the opening / closing body in the closing direction reaches the reference position, a predetermined operation amount is subtracted or added to the reference position, thereby calculating and setting a fully closed position and a fully open position (see, for example, Patent Document 1). Also, with this technique, when a second operation instruction (an instruction to move the opening / closing body so that the position of the end of the opening / closing body in the closing direction moves away from the reference position) is received after the power supply to the shutter device is restored after a power outage, the opening / closing movement of the opening / closing body is restricted (specifically, by preventing the opening / closing body from moving open or closed), making it possible to suppress damage to the opening / closing body. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-35221 Summary of the Invention [Problem to be solved by the invention]

[0005] In the conventional technology, as described above, when the second operation instruction is received after the power supply to the shutter device is restored after a power outage, the opening / closing movement of the opening / closing body is restricted. Therefore, for example, even if the second operation instruction is received, the opening / closing body cannot be moved open or closed, which may lead to a user mistaking the shutter device for a malfunction. In particular, when the reference position is located above the fully open position and the end of the opening / closing body in the closing direction is positioned at the fully open position immediately after the power supply to the shutter device is restored after a power outage, the opening / closing body cannot be moved closed even if the second operation instruction is received. This may lead to a user mistaking the shutter device for a malfunction, making it difficult to smoothly reset the fully closed position and the fully open position. Therefore, there is room for improvement in terms of usability of the opening / closing device.

[0006] The present invention is intended to solve the above-mentioned problems in the prior art, and has an object to provide a control system that can improve the usability of a switching device. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems and achieve the object, the control system according to claim 1 is a control system for controlling an opening and closing device having an opening and closing body that opens and closes an opening of a building, the control system comprising: an operating means for receiving an operation instruction related to the opening and closing device; and an opening and closing movement control means for controlling the opening and closing movement of the opening and closing body based on the operation instruction received via the operating means, the control means performing a first opening and closing control that is a control for moving the opening and closing body so that an end portion of the opening and closing body on the closing direction side moves away from a reference position that is a reference position preset in the control system and serves as a reference for controlling the opening and closing movement of the opening and closing body; and a second opening and closing control that is a control for moving the opening and closing body so that the end portion of the opening and closing body on the closing direction side approaches the reference position. and a return setting means for setting the limit position when a setting timing arrives, the limit position being a limit position preset in the control system and used to limit the opening / closing movement of the opening / closing body. When the setting timing arrives, if a first operation instruction, which is the operation instruction to perform the first opening / closing control, is received via the operation means, the opening / closing movement control means performs the first opening / closing control to move the opening / closing body open or closed by a predetermined amount or for a predetermined time, and then performs the second opening / closing control. The return setting means sets the limit position when triggered by the second opening / closing control causing the end of the opening / closing body on the closing direction side to reach the reference position.

[0008] The control system of claim 2 is the control system of claim 1, further comprising an overload detection means for detecting whether or not the drive means for moving the opening / closing body to open or close is in an overload state, and when the first opening / closing control is being performed by receiving the first operation instruction via the operation means after the set timing has arrived and the overload detection means detects that the drive means is in an overload state, the opening / closing movement control means stops the first opening / closing control and performs the second opening / closing control.

[0009] The control system of claim 3 is the control system of claim 2, wherein the overload detection means detects whether the drive means is in an overload state during the first opening / closing control, and detects whether the drive means is in an overload state during the second opening / closing control, and the detection sensitivity of the overload detection means during the first opening / closing control is made higher than the detection sensitivity of the overload detection means during the second opening / closing control.

[0010] The control system of claim 4 is a control system of any one of claims 1 to 3, wherein when the setting timing arrives, if a second operation instruction, which is the operation instruction to perform the second opening / closing control, is received via the operation means, the opening / closing movement control means performs the second opening / closing control without performing the first opening / closing control, and the return setting means sets the limit position when triggered by the second opening / closing control causing the end of the opening / closing body on the closing direction side to reach the reference position. [Effects of the Invention]

[0011] According to the control system of claim 1, when the setting timing arrives, if the first operation instruction is received via the operation means, the opening / closing movement control means performs the first opening / closing control to move the opening / closing body open or closed by a predetermined amount or for a predetermined time, and then performs the second opening / closing control, and the return setting means sets the limit position when the end of the opening / closing body on the closing direction side reaches the reference position by the second opening / closing control, which is a trigger, so that the opening / closing movement of the opening / closing body can be reliably performed when the setting timing arrives, compared to the prior art (a technology that restricts the opening / closing movement of the shutter curtain when the second operation instruction is received after the power supply to the shutter device is restored after a power outage). Therefore, when the setting timing arrives, it is possible to reliably set the limit position, and it is possible to avoid the user mistaking the opening / closing device for a malfunction, thereby improving the usability of the opening / closing device.

[0012] According to the control system described in claim 2, when the opening / closing movement control means performs the first opening / closing control by receiving the first operation instruction via the operation means after the set timing has arrived, if the overload detection means detects that the drive means is in an overload state, the first opening / closing control is stopped and the second opening / closing control is performed.Therefore, when the first opening / closing control is being performed and an overload state of the drive means is detected, the first opening / closing control can be stopped and the second opening / closing control can be performed, making it easier to avoid malfunctions of the opening / closing body and / or drive means (for example, the opening / closing body being pressed against the floor surface of a building, etc., causing part of the opening / closing body to bend).

[0013] According to the control system described in claim 3, the detection sensitivity of the overload detection means during the first opening / closing control is set higher than the detection sensitivity of the overload detection means during the second opening / closing control, so that the detection sensitivity of the overload detection means during the first opening / closing control can be set relatively high, making it even easier to avoid failures in the opening / closing body and / or driving means.

[0014] According to the control system described in claim 4, when the setting timing arrives, if the second operation instruction is received via the operation means, the opening / closing movement control means performs the second opening / closing control without performing the first opening / closing control, and the return setting means sets the limit position when the end of the opening / closing body in the closing direction reaches the reference position due to the second opening / closing control, so when the second operation instruction is received when the setting timing arrives, the second opening / closing control can be performed without performing the first opening / closing control, and the limit position can be set again more smoothly than when the first operation instruction is received when the setting timing arrives. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a diagram conceptually showing an opening and closing device according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram showing the electrical configuration of a control device. [Figure 3]4 is a flowchart of an opening / closing process according to the first embodiment. [Figure 4] 10 is a flowchart of a first control mode process. [Figure 5] 10 is a flowchart of a second control mode process. [Figure 6] 10 is a flowchart of a third control mode process. [Figure 7] 10 is a flowchart of a fourth control mode process. [Figure 8] FIG. 10 is a diagram conceptually showing an opening and closing device according to a second embodiment. [Figure 9] 10 is a flowchart of a fourth control mode process according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0016] An embodiment of a control system according to the present invention will be described in detail below with reference to the accompanying drawings. First, [I] the basic concept of the embodiment will be described, then [II] specific details of the embodiment will be described, and finally, [III] modifications to the embodiment will be described. However, the present invention is not limited to the embodiment.

[0017] [I] Basic Concept of the Embodiment First, the basic concept of the embodiment will be described. The embodiment generally relates to a control system for controlling an opening and closing device having an opening and closing body that opens and closes an opening in a building.

[0018] Here, the term "building" refers to any specific structure or type, but is a concept that includes, for example, a detached house, a housing complex such as an apartment or condominium, an office building, a commercial facility, and a public facility.

[0019] Furthermore, an "opening in a building" is an opening formed in a part of the building's framework (for example, a wall, floor, ceiling, etc.) for installing an entrance or window.

[0020] An opening and closing device is a device attached to an opening in a building for the purpose of crime prevention and fire prevention, and is a concept that includes all types of shutter devices and door devices that can be electrically driven, such as heavy shutters. The opening and closing directions of an opening and closing device include, for example, up and down, left and right, and front and back.

[0021] Furthermore, the "open / closed state of the opening / closing body" is a concept that includes, for example, a "fully closed state," a "fully open state," and a "half-open state."

[0022] Of these, the "fully closed state" is a state in which the opening is fully closed by the opening / closing body, and the position of the opening / closing body in this fully closed state is referred to as the "fully closed position." The "fully open state" is a state in which the opening is fully opened by the opening / closing body, and the position of the opening / closing body in this fully open state is referred to as the "fully open position." The "half-open state" is a state in which the opening / closing body is positioned between the fully closed position and the fully open position, and the position of the opening / closing body in the half-open state is referred to as the "half-open position."

[0023] In the following embodiments, a case will be described in which the opening and closing device is an electric shutter of the up and down opening and closing type provided at the entrance and exit of a garage of a building such as a detached house.

[0024] [II] Specific details of the embodiment Next, specific details of the embodiment will be described.

[0025] First Embodiment First, a description will be given of a control system according to embodiment 1. In this embodiment 1, the reference position is a position above the limit position.

[0026] (composition) First, the configuration of a switching device to which the control system according to the first embodiment is applied will be described.

[0027] In the following description, the X direction in FIG. 1 is referred to as the left-right direction of the opening and closing device (the -X direction is the left direction of the opening and closing device, and the +X direction is the right direction of the opening and closing device), the Y direction in FIG. 1 is referred to as the up-down direction of the opening and closing device (the +Y direction is the up direction of the opening and closing device, and the -Y direction is the down direction of the opening and closing device), and the direction perpendicular to the X and Y directions is referred to as the front-to-back direction (the direction leading to the front side of the page in FIG. 1 is the front direction of the opening and closing device (toward the outside of the building), and the direction leading to the back side of the page in FIG. 1 is the rear direction of the opening and closing device (toward the inside of the building)).

[0028] 1, the opening and closing device 1 generally includes a storage section 10, a guide rail 20, an opening and closing body 30, an opening and closing machine 40, a winding shaft (not shown), and a control system 50. Note that unless otherwise specified, the configuration of the opening and closing device 1 is the same as that of the conventional device, and therefore description thereof will be omitted.

[0029] The connection configuration of each component constituting this switchgear 1 is set as shown below. That is, a control device 90 of a control system 50 (described later) is electrically connected to each of the switchgear 40, an operating device 60 of the control system 50 (described later), a position detection unit 70, and a rotation speed detection unit 80 via wiring 3. This allows communication or power supply directly or indirectly between the control device 90 (described later) and the switchgear 40, an operating device 60 (described later), a position detection unit 70 (described later), or a rotation speed detection unit 80 (described later).

[0030] The method of attaching (or connecting) the various components that make up the opening and closing device 1 to each other is arbitrary, but for example, a method is used in which the attachment side component is attached (or connected) to the attachment side component via an attachment hole (for example, a rivet hole, a screw hole, a screw hole, etc.) formed in the attachment side component or the attachment side component using a fastener (for example, a rivet, an attachment screw, a screw, etc.), welding, an adhesive, double-sided tape, etc.

[0031] (Configuration - Storage section) The storage section 10 is a hollow body for storing each part of the opening / closing device 1. As shown in Fig. 1 , the storage section 10 is installed above the upper end of the opening 2 in the wall of a building. The storage section 10 also stores the opening / closing machine 40, the winding shaft, and a position detection section 70, a rotation speed detection section 80, and a control device 90 of the control system 50, which will be described later. When the opening / closing body 30 is wound up by the winding shaft, at least a part of the opening / closing body 30 is also stored inside the storage section 10.

[0032] (Configuration - Guide rail) The guide rail 20 guides the opening / closing body 30 to move along the opening / closing direction (vertical direction) of the opening 2. The guide rail 20 is an elongated body formed so that its cross section is roughly U-shaped, and is disposed at each of the left and right ends of the opening / closing device 1 in a direction roughly along the vertical direction, and is fixed directly to the wall of the building or indirectly via a base material (not shown).

[0033] (Configuration - Opening and closing body) The opening / closing body 30 is a shielding means that is moved to a closed or opened state by the winding shaft, thereby changing the opening / closing state of the opening / closing body 30 to a fully open state, a fully closed state, or a half open state. As shown in Fig. 1, the opening / closing body 30 is configured with a plurality of slats 31, and the plurality of slats 31 are fitted and connected to each other via fitting portions (not shown) formed on both the upper and lower ends of each slat 31.

[0034] In addition, each of the left and right ends of this opening / closing body 30 is inserted into the inside of the guide rail 20 through the U-shaped open end of the guide rail 20, and is able to slide inside the guide rail 20 in the vertical direction, and is restricted from falling out of the guide rail 20 in the front-to-back direction.

[0035] A seat plate 32 is connected to the end portion of the opening / closing body 30 on the closing direction side (specifically, the lower end portion of the opening / closing body 30; hereinafter referred to as the "closing direction side end portion"). The seat plate 32 is disposed so as to be in close proximity to or in contact with the floor surface of the building in the fully closed state, and is formed over the entire length of the closing direction side end portion of the opening / closing body 30 in the left-right direction.

[0036] (Configuration - Opening and closing mechanism) The opening / closing device 40 is a driving means for rotating the winding shaft to open and close the opening / closing body 30. The opening / closing device 40 is configured using, for example, a known opening / closing device, and is configured with an output shaft, a drive unit, a brake unit, a power supply unit, and a control unit (all of which are not shown).

[0037] Of these, the output shaft is for transmitting the rotational force transmitted from the drive unit to the winding shaft via a clutch (not shown). The brake unit acts on the output shaft to brake the rotation of the winding shaft. The drive unit drives the opening / closing body 30 by electrically rotating the output shaft. The power supply unit supplies power supplied from a commercial power source (not shown) to each part of the opening / closing device 40. The control unit is a control means for controlling each part of the opening / closing device 40, and also controls the opening and closing of the opening / closing body 30 based on output from a control device 90 (described later).

[0038] Furthermore, the specific operation of the opening / closing device 40 is arbitrary, but in the first embodiment, when the opening / closing device 40 and the winding shaft are connected via the clutch by manual operation, a signal indicating this (hereinafter referred to as a "clutch connection signal") is output to the control device 90, which will be described later. Furthermore, when the connection between the opening / closing device 40 and the winding shaft by the clutch is released by manual operation, a signal indicating this (hereinafter referred to as a "clutch release signal") is output to the control device 90, which will be described later.

[0039] (Configuration - Winding shaft) The winding shaft is a rotating shaft for closing or opening the opening / closing body 30. This winding shaft is configured using, for example, a known winding shaft or the like, and is installed along the left-right direction.

[0040] In addition, a connecting slat (not shown) connected to the upper end of the opening / closing body 30 is connected to this winding shaft, and by rotating this winding shaft, the opening / closing body 30 can be moved to close or open via the connecting slat.

[0041] In addition, the left end (or right end) of this winding shaft is connected to the output shaft of the opening / closing machine 40 via a chain (not shown) and a clutch, so the winding shaft can be rotated in conjunction with the rotation of the output shaft of the opening / closing machine 40.

[0042] (Configuration-Control System) Next, the configuration of the control system 50 will be described.

[0043] The control system 50 is for controlling the opening and closing device 1, and includes an operating device 60, a position detection unit 70, a rotation speed detection unit 80, and a control device 90, as shown in FIG.

[0044] (Configuration - Control System - Operation Device) The operating device 60 is an operating means for receiving operating instructions related to the opening / closing device 1. As shown in Fig. 1, this operating device 60 is provided near the opening 2, and is configured using, for example, a known operating device for a shutter device. Specifically, it is equipped with an open button that commands the opening / closing body 30 to be electrically moved to an open position, a close button that commands the opening / closing body 30 to be electrically moved to a closed position, and a stop button that commands the stopping of the electrically moved to close or open position (all of which are not shown).

[0045] Furthermore, the specific operation of the operating device 60 is arbitrary, but in the first embodiment, it is as follows.

[0046] In other words, when the open button, close button, or stop button is pressed by a user, an operation signal (i.e., open signal, close signal, stop signal) corresponding to the pressed button is output to the opening / closing device 40 via the control device 90, so that the opening / closing device 40 can electrically move the opening / closing body 30 to close or open, or electrically stop the opening or closing movement of the opening / closing body 30.

[0047] Furthermore, if the open button, close button, or stop button is operated multiple times within a specified time (for example, pressing the close button three times while pressing the stop button), a signal corresponding to the operation can be output to the control device 90, thereby setting the first restriction position P1 described below and the second restriction position P2 described below.

[0048] In the first embodiment, the operation device 60 is described as communicating with the control device 90 via a wired connection, but this is not limiting, and for example, the operation device 60 may communicate with the control device 90 wirelessly. Furthermore, both the wired and wireless operation devices 60 may be provided.

[0049] (Configuration - Control system - Position detection unit, rotation speed detection unit) The position detection unit 70 is a position detection means for detecting the position of the closing direction end of the opening / closing body 30 and outputting a signal indicating the detected position (hereinafter referred to as a "position signal") at a predetermined period, and is provided in the vicinity of the opening / closing device 40 as shown in Figure 1.

[0050] The rotation speed detection unit 80 is a rotation speed detection means for detecting the rotation speed of the drive unit of the opening / closing device 40 (hereinafter referred to as "rotation speed of the drive unit") and outputting a signal indicating the detected rotation speed (hereinafter referred to as "rotation speed signal") at a predetermined period, and is provided in the vicinity of the opening / closing device 40 as shown in FIG. 1.

[0051] Furthermore, the specific configurations of the position detection unit 70 and the rotation speed detection unit 80 are arbitrary, but in the first embodiment, they are configured using a Hall IC or the like that has the functions of both the position detection unit 70 and the rotation speed detection unit 80. However, this is not limiting, and for example, the position detection unit 70 may be configured using a potentiometer or the like, and the rotation speed detection unit 80 may be configured using a tachogenerator or the like.

[0052] The "rotation speed of the drive unit" mentioned above corresponds to the "load amount of the drive means." Specifically, the higher the rotation speed of the drive unit, the lower the load amount of the drive unit, and vice versa.

[0053] (Configuration - Control System - Control Device) The control device 90 is a device that interconnects the various parts of the switching device 1, and includes an input unit 91, an output unit 92, a power supply unit 93, a control unit 94, and a storage unit 95, as shown in FIG.

[0054] (Configuration - Control system - Control device - Input section) The input unit 91 is an input means that receives input of various signals (e.g., operation signals, position signals, rotation speed signals, clutch engagement signals, clutch release signals, etc.) from the operation device 60, the position detection unit 70, the rotation speed detection unit 80, or the opening / closing machine 40, and is configured using, for example, known input terminals, etc.

[0055] (Configuration - Control system - Control device - Output section) The output unit 92 is an output means for outputting various signals to the switch 40 and the like, and is configured using, for example, known output terminals and the like.

[0056] (Configuration - Control system - Control device - Power supply unit) The power supply unit 93 is a power supply means that supplies power from a commercial power source or a battery (e.g., a battery, etc.) not shown to each part of the control device 90, as well as to the operating device 60, the position detection unit 70, and the rotation speed detection unit 80.

[0057] (Configuration - Control system - Control device - Control unit) The control unit 94 is a control means that controls each unit of the control device 90. Specifically, the control unit 94 is a computer that includes a CPU, various programs that are interpreted and executed on the CPU (including basic control programs such as an OS, and application programs that are started on the OS and realize specific functions), and an internal memory such as a RAM for storing the programs and various data.

[0058] As shown in FIG. 2, the control unit 94 conceptually includes an opening / closing movement control unit 94a, a return setting unit 94b, and an overload detection unit 94c.

[0059] (Configuration - Control system - Control device - Control unit - Opening / closing movement control unit) The opening / closing movement control unit 94a is an opening / closing movement control means that controls the opening / closing movement of the opening / closing body 30 based on operation instructions received via the operating device 60, and is an opening / closing movement control means that is capable of performing first opening / closing control and second opening / closing control.

[0060] Here, the "first opening / closing control" refers to the control performed in the fourth control mode described later, which moves the opening / closing body 30 to open or close so that the closing direction side end of the opening / closing body 30 moves away from the reference position PP previously set in the control system 50 (in the first embodiment, the reference position PP set in the second control mode processing described later).

[0061] In addition, the "second opening / closing control" refers to the control performed in the fourth control mode described later, which moves the opening / closing body 30 to open or close so that the closing direction side end of the opening / closing body 30 approaches the reference position PP.

[0062] Furthermore, the "reference position PP" refers to a reference position for controlling the opening and closing movement of the opening / closing body 30, and in embodiment 1, as shown in FIG. 1, is described as a position above the limiting position described below, where the closing direction side end of the opening / closing body 30 abuts against the lower end of the storage section 10 (or the ceiling of the building).

[0063] (Configuration - Control system - Control device - Control unit - Reset setting unit) The return setting unit 94b is a return setting means for setting the limit position when the setting timing arrives.

[0064] Here, "setting timing" means the timing at which the limiting position previously set in the control system 50 (in the first embodiment, the limiting position set in the first control mode processing described later) is set again, and is a concept that includes, for example, the timing at which the power supply to the opening / closing device 1 is turned off due to a power outage or manually, and / or the timing at which the connection between the opening / closing device 40 and the winding shaft is released by the clutch of the opening / closing device 40.

[0065] Moreover, the "restriction position" refers to a position for restricting the opening / closing movement of the opening / closing body 30, and in the first embodiment, this corresponds to the first restriction position P1 and the second restriction position P2.

[0066] Of these, the "first limit position P1" will be described as an upper limit position for limiting the opening movement of the opening / closing body 30 (for example, a fully open position or a position nearby thereto), as shown in FIG.

[0067] Further, the "second limit position P2" will be described as a lower limit position for limiting the closing movement of the opening / closing body 30 (for example, a fully closed position or a position nearby thereto), as shown in FIG.

[0068] (Configuration - Control system - Control device - Control unit - Overload detection unit) The overload detection unit 94c detects whether or not the switchgear 40 is in an overload state. The "overload detection unit 94c" and the "rotation speed detection unit 80" correspond to the "overload detection means" in the claims.

[0069] The processing executed by the control unit 94 will be described in detail later.

[0070] (Configuration - Control system - Control device - Storage unit) The storage unit 95 is a storage means for storing programs and various data required for the operation of the control device 90, and is configured using a rewritable recording medium, and may be a non-volatile recording medium such as a flash memory.

[0071] (Opening and closing process) Next, a description will be given of the opening and closing process executed by the control unit 94 of the control device 90 of the control system 50. In the following description, steps will be abbreviated as "S" in the description of each process shown in Figs.

[0072] The opening / closing process is a process for controlling the opening / closing movement of the opening / closing body 30. The timing for executing this opening / closing process is arbitrary, but in the first embodiment, it will be described as being started after the power of the opening / closing device 1 is turned on.

[0073] In addition, the premise of this opening / closing process is that the opening / closing state of the opening / closing body 30 is in a fully closed state, and the first restricted position information described later, the second restricted position information described later, and the reference position information described later are not stored in the memory unit 95.

[0074] In the first embodiment, the control modes of the control system 50 will be described as including a "first control mode," a "second control mode," a "third control mode," and a "fourth control mode."

[0075] Of these, the "first control mode" is a control mode for setting the first restriction position P1 and the second restriction position P2.

[0076] In addition, the "second control mode" is a control mode for linking the control position of the opening / closing body 30 with the load amount of the drive unit of the opening / closing device 40 that drives the opening / closing body 30 (specifically, the rotation speed of the drive unit).

[0077] The "third control mode" is a control mode for opening and closing the opening / closing body 30 (a so-called normal control mode).

[0078] The "fourth control mode" is a control mode for resetting the first restriction position P1 and the second restriction position P2 after the setting timing has arrived.

[0079] When the opening / closing process is started, as shown in FIG. 3, the control unit 94 sets the control mode to the first control mode at SA1 and starts the first control mode process.

[0080] (Open / close processing - 1st control mode processing) Next, the first control mode process of SA1 in FIG. 3 will be described.

[0081] The first control mode process is a process for setting the first restriction position P1 and the second restriction position P2.

[0082] When the first control mode process is started, as shown in FIG. 4, the control unit 94 sets the first limit position P1 (specifically, the upper limit position) in SB1.

[0083] The first limit position P1 may be set in any manner, but in the first embodiment it is set as follows.

[0084] That is, first, the opening / closing movement control unit 94a moves the opening / closing body 30 (specifically, the closing direction side end of the opening / closing body 30) to a predetermined position. Specifically, the opening / closing body 30 is moved to open or close based on an operation signal (specifically, an open signal, a close signal, or a stop signal) input from the operation device 60 by a predetermined operation. Note that the details of the control of this opening / closing movement are substantially the same as the specific processing of SD5 described later, and specifically, the opening / closing movement of the opening / closing body 30 corresponding to the push-off operation described later is controlled.

[0085] However, the present invention is not limited to this, and for example, the opening / closing movement control unit 94a may automatically move the opening / closing body 30 to the predetermined position in an open state without relying on the operation signal at the same time as the start of processing of SB1. In this case, the opening movement may be stopped when a stop signal is received.

[0086] Next, when the opening / closing body 30 reaches the above-mentioned predetermined position, the control unit 94 sets the predetermined position as the first restriction position P1 based on the first setting signal (a signal for determining the first restriction position P1) received as input from the operating device 60 by a predetermined operation, and stores information indicating the set first restriction position P1 (hereinafter referred to as "first restriction position information") in the memory unit 95.

[0087] In SB2, the control section 94 sets the second limit position P2 (specifically, the lower limit position), and then ends the first control mode process, returning to the opening / closing process of FIG.

[0088] The second limit position P2 may be set in any manner, but in the first embodiment it is set as follows.

[0089] That is, first, the opening / closing movement control unit 94a opens / closes the opening / closing body 30 to a predetermined position different from the first limit position P1. Specifically, the opening / closing body 30 is opened / closed based on an operation signal input from the operation device 60 by a predetermined operation. The details of the control of this opening / closing movement are substantially the same as the specific processing of SD5 described later, and specifically, the opening / closing movement of the opening / closing body 30 corresponding to the push-off operation described later is controlled.

[0090] However, the present invention is not limited to this, and for example, the opening / closing movement control unit 94a may automatically close the opening / closing body 30 to the predetermined position without relying on the operation signal at the same time as the start of processing SB2. In this case, the closing movement may be stopped when a stop signal is received.

[0091] Next, when the opening / closing body 30 reaches the above-mentioned predetermined position, the control unit 94 sets the predetermined position as the second restriction position P2 based on the second setting signal (a signal for determining the second restriction position P2) input from the operating device 60 by a predetermined operation, and stores information indicating the set second restriction position P2 (hereinafter referred to as ``second restriction position information'') in the memory unit 95.

[0092] By the first control mode process as described above, the first restricting position P1 and the second restricting position P2 can be set via the operating device 60. Therefore, compared to when the first restricting position P1 and the second restricting position P2 are automatically set, the first restricting position P1 and the second restricting position P2 can be set in accordance with the needs of the user, thereby improving the usability of the opening and closing device 1.

[0093] Returning to FIG. 3, at SA2, the control unit 94 switches the control mode from the first control mode to the second control mode and starts the second control mode process.

[0094] (Open / close processing - second control mode processing) Next, the second control mode process of SA2 in FIG. 3 will be described.

[0095] The second control mode process is a process for linking the control position of the opening / closing body 30 with the load amount of the drive unit of the opening / closing device 40.

[0096] When the second control mode process is started, the control unit 94 sets the reference position PP in SC1 as shown in FIG.

[0097] The method for setting this reference position PP is arbitrary, but in the first embodiment, it is set as follows.

[0098] That is, first, the opening / closing movement control unit 94a moves the opening / closing body 30 to a predetermined position (specifically, a position where the closing direction side end of the opening / closing body 30 abuts the lower end of the storage section 10) (note that in the first embodiment, the opening / closing movement of the opening / closing body 30 is not stopped based on the first limiting position P1 and the second limiting position P2 until the processing of SC1 is completed). Specifically, the opening / closing body 30 is moved to an opening or closing position based on an operation signal input from the operating device 60 by a predetermined operation. Note that the details of the control of this opening / closing movement are substantially the same as the specific processing of SD5 described later, and specifically, the opening / closing movement of the opening / closing body 30 corresponding to the self-holding operation described later is controlled.

[0099] However, the present invention is not limited to this, and for example, the opening / closing movement control unit 94a may automatically move the opening / closing body 30 to the predetermined position in an opening manner without relying on the operation signal at the same time as the start of processing of SC1. In this case, as will be described later, the opening movement may be stopped after it is determined that the number of rotations of the drive unit of the opening / closing device 40 is less than a threshold value.

[0100] Next, while continuing the opening and closing movement, the control unit 94 determines whether the rotation speed of the drive unit of the opening and closing device 40 is below a threshold value based on the rotation speed signal received as input from the rotation speed detection unit 80.

[0101] Next, when it is determined that the difference is less than the threshold value, the control unit 94 sets the predetermined position as the reference position PP based on the position signal received as input from the position detection unit 70, and stores information indicating the set reference position PP (hereinafter referred to as "reference position information") in the memory unit 95. Thereafter (specifically, after processing SC2, which will be described later), the opening / closing body 30 is automatically moved from the reference position PP to the first limit position P1 to close.

[0102] At SC2, the control unit 94 calculates the first distance and the second distance.

[0103] Specifically, to calculate the first distance, the distance from the first restriction position P1 set in SB1 to the reference position PP set in SC1 is calculated, the calculated distance is set as the first distance, and information indicating the first distance (hereinafter referred to as "first distance information") is stored in memory unit 95.

[0104] Furthermore, the calculation of the second distance is performed by calculating the distance from the second restriction position P2 set in SB2 to the reference position PP set in SC1, setting the calculated distance as the second distance, and storing information indicating the second distance (hereinafter referred to as "second distance information") in the storage unit 95. However, without being limited to this, for example, the calculation may be performed by calculating the distance from the first restriction position P1 set in SB1 to the second restriction position P2 set in SB2, and setting the calculated distance as the second distance.

[0105] For example, to clarify the directionality of the distances for the first and second distances set above, plus and minus signs may be added to the first distance information and second distance information. As an example, the first distance information may be information indicating "-200 pulses" when the first limit position P1 is 1 m downward from the reference position PP, or information indicating "+200 pulses" when the first limit position P1 is 1 m upward from the reference position PP.

[0106] In SC3, the control unit 94 executes a process (hereinafter referred to as "cording process") to link the control position of the opening / closing body 30 with the load amount of the drive unit of the opening / closing device 40. Thereafter, the second control mode process ends, and the process returns to the opening / closing process of FIG.

[0107] The processing content of this linking process is arbitrary, but in the first embodiment, it is as follows.

[0108] That is, based on a closing signal received as input from the operating device 60, the opening / closing body 30 is moved to the closed position from the first restricting position P1 to the second restricting position P2 (for example, the closing movement may be performed by controlling the opening / closing movement of the opening / closing body 30 corresponding to the "self-holding operation". However, this is not limited to this, and the closing movement may also be performed automatically at the same time as the start of processing SC3).

[0109] In parallel with the closing movement, based on the position signal and rotation speed signal received as input from the position detection unit 70 and the rotation speed detection unit 80, information indicating the control position of the opening / closing body 30 (hereinafter referred to as "control position information"), information indicating the rotation speed of the drive unit (hereinafter referred to as "rotation speed information"), and information indicating a threshold value (the rotation speed of the drive unit minus a predetermined value) used to determine whether the opening / closing device 40 is in an overload state in the third control mode (hereinafter referred to as "first threshold information") are stored in memory unit 95 in association with each other.

[0110] Then, when the position of the closing direction side end of the opening / closing body 30 reaches the second limit position P2, the closing movement of the opening / closing body 30 is stopped, and storage of the control position information, rotation speed information, and first threshold information is also stopped.

[0111] By the second control mode process as described above, the control position of the opening / closing body 30 and the load amount of the drive unit of the opening / closing device 40 can be linked, and the third control mode process can be performed accurately and safely.

[0112] Returning to FIG. 3, at SA3, the control unit 94 switches the control mode from the second control mode to the third control mode and starts the third control mode process.

[0113] (Open / close processing - 3rd control mode processing) Next, the third control mode process of SA3 in FIG. 3 will be described.

[0114] The third control mode process is a process for performing opening and closing movement of the opening-closing body 30.

[0115] When the third control mode process is started, as shown in FIG. 6, the control unit 94 determines in SD1 whether or not the setting timing has arrived.

[0116] There is no particular limitation on the method for determining whether the set timing has arrived, but in the first embodiment, from the viewpoint of accurately determining whether the set timing has arrived, the determination is made based on whether a signal indicating that power supply from the commercial power source has been stopped (hereinafter referred to as a "power supply stop signal") has been received from the power supply unit 93, or whether a clutch release signal has been received from the switch 40. Here, if the power supply stop signal or the clutch release signal has been received, it is determined that the set timing has arrived, and if the power supply stop signal or the clutch release signal has not been received, it is determined that the set timing has not arrived.

[0117] However, the present invention is not limited to this, and the determination may be made based solely on whether or not the input of the power supply stop signal has been received.

[0118] Then, if the control unit 94 determines that the setting timing has arrived (SD1, Yes), it proceeds to SD2, and if it determines that the setting timing has not arrived (SD1, No), it proceeds to SD4.

[0119] In the first embodiment, it has been described that only SD1 determines whether the setting timing has arrived, but this is not limiting. For example, it may be determined whether the setting timing has arrived in processes other than SD1 (for example, the process of SD4) among the third control mode processes and / or in each process of the fourth control mode process, and if it is determined that the setting timing has arrived, the process may proceed to SD2.

[0120] In SD2, the control unit 94 determines whether or not the timing has come to return to the state before it was determined in SD1 that the setting timing had arrived (hereinafter referred to as "return timing").

[0121] There is no particular limitation on the method for determining whether the return timing has arrived, but in the first embodiment, from the viewpoint of accurately determining whether the return timing has arrived, the determination is made based on whether a signal indicating that power is being supplied from a commercial power source (hereinafter referred to as a "power supply signal") has been input from the power supply unit 93, or whether a clutch connection signal has been input from the switchgear 40. Here, if the input of the power supply signal or the clutch connection signal has been received, it is determined that the return timing has arrived, and if the input of the power supply signal or the clutch connection signal has not been received, it is determined that the return timing has not arrived.

[0122] However, the present invention is not limited to this, and the determination may be made based solely on whether or not only the input of the power supply signal has been received.

[0123] The control unit 94 then waits until it is determined that the return timing has arrived (SD2, No), and if it is determined that the return timing has arrived (SD2, Yes), it switches the control mode from the third control mode to the fourth control mode and starts the fourth control mode process (SD3). Details of the fourth control mode process will be described later.

[0124] In the first embodiment, the fourth control mode process (SD3) can be executed after the processes of SD1 and SD2 have been executed (specifically, it becomes possible to accept a first operation instruction and a second operation instruction, which will be described later). In light of this, the setting timing according to the first embodiment essentially means the timing after the processes of SD1 and SD2 have been executed (the same applies to the setting timing according to the second embodiment).

[0125] In SD4, the control unit 94 determines whether or not an input of an operation signal from the operation device 60 has been accepted.

[0126] Then, if the control unit 94 determines that the input of the operation signal has been accepted (SD4, Yes), it proceeds to SD5, and if it determines that the input of the operation signal has not been accepted (SD4, No), it proceeds to SD6.

[0127] In SD5, the opening / closing movement control unit 94a opens or closes the opening / closing body 30 or stops the opening / closing movement of the opening / closing body 30 based on the operation signal input and accepted in SD4.

[0128] Specifically, when SD4 receives an input of a closing signal or an opening signal, it outputs a control signal corresponding to the closing signal, etc. to the opening / closing device 40 via the output unit 92, thereby electrically releasing the brake unit of the opening / closing device 40 and driving the drive unit of the opening / closing device 40, thereby electrically moving the opening / closing body 30 to the closing or opening position.

[0129] Here, in the first embodiment, even when the acceptance of inputs such as a closing signal is stopped, the drive unit of the opening / closing device 40 is driven by continuing to output the control signal, thereby continuing the closing or opening movement of the opening / closing body 30. In other words, the opening / closing movement of the opening / closing body 30 is controlled in accordance with a so-called "self-holding operation." However, without being limited to this, for example, when the acceptance of inputs such as a closing signal is stopped, the closing or opening movement of the opening / closing body 30 may also be stopped. In other words, the opening / closing movement of the opening / closing body 30 may be controlled in accordance with a so-called "push-off operation."

[0130] In addition, if a stop signal is received while the opening / closing body 30 is moving to close or open, a control signal corresponding to the stop signal is output to the opening / closing machine 40 via the output unit 92, thereby stopping the drive unit of the opening / closing machine 40 from operating, and actuating the brake unit of the opening / closing machine 40 to stop the electrically driven closing or opening movement of the opening / closing body 30.

[0131] In SD6, the overload detection unit 94c determines whether the opening / closing device 40 is in an overload state in order to confirm whether there is a factor in the opening 2 that is hindering the opening / closing movement of the opening / closing body 30 (for example, an obstacle such as a person or object passing through the opening 2).

[0132] While any method may be used to determine whether or not the overload state has occurred, in the first embodiment, SC3 determines whether or not the rotation speed of the drive unit indicated by the rotation speed signal received as input from the rotation speed detection unit 80 when processing SD6 is less than a threshold value (specifically, the threshold value of the first threshold value information corresponding to the position of the closing direction side end of the opening / closing body 30 in the position signal received as input from the position detection unit 70 when processing SD6) based on the control position information, rotation speed information, and first threshold value information stored in the storage unit 95. If the rotation speed is less than the threshold value, it is determined that the overload state has occurred, and if the rotation speed is not less than the threshold value, it is determined that the overload state has not occurred.

[0133] If the overload detection unit 94c determines that the above-mentioned overload state exists (SD6, Yes), it proceeds to SD7, and if it determines that the above-mentioned overload state does not exist (SD6, No), it proceeds to SD8.

[0134] In SD7, if the opening / closing movement of the opening / closing body 30 is continuing immediately before the processing of SD7, the opening / closing movement control unit 94a stops the opening / closing movement, and then the process proceeds to SD1.

[0135] Here, the method for stopping the opening / closing movement of the opening / closing body 30 is arbitrary, but in embodiment 1, the opening / closing movement of the opening / closing body 30 is temporarily stopped, and then the opening / closing body 30 is moved to open so that the position of the closing direction side end of the opening / closing body 30 is higher than its current position, and then this opening movement is stopped (a so-called ``touch-up operation'' is performed).

[0136] However, the present invention is not limited to this, and for example, the opening / closing movement of the opening / closing body 30 may simply be stopped (a so-called "touch stop operation" may be performed).

[0137] In SD8, the control unit 94 determines whether the position of the closing direction side end of the opening / closing body 30 has reached either the first limit position P1 or the second limit position P2.

[0138] While any method can be used to determine whether the first or second limit position P1 or P2 has been reached, in the first embodiment, the determination is made based on whether the position of the closing direction side end of the opening / closing body 30 indicated by the position signal received as input from the position detection unit 70 during processing in SD8 matches the first or second limit position P1 or P2 set in SB1 or SB2 (or the first or second limit position P1 or P2 set in SE6, which will be described later). If the position matches the first or second limit position P1 or P2, it is determined that either the first or second limit position P1 or P2 has been reached, and if the position does not match either the first or second limit position P1 or P2, it is determined that neither the first or second limit position P1 or P2 has been reached.

[0139] If the control unit 94 determines that either the first limit position P1 or the second limit position P2 has been reached (SD8, Yes), the process proceeds to SD7, where the opening / closing movement control unit 94a stops the opening / closing movement of the opening / closing body 30. On the other hand, if it determines that neither the first limit position P1 nor the second limit position P2 has been reached (SD8, No), the process proceeds to SD1, and the processes from SD1 to SD8 are repeated in the same manner.

[0140] By the above-described third control mode process, the opening / closing body 30 can be opened or closed, and the open / closed state of the opening / closing body 30 can be changed depending on the situation.

[0141] (Open / close processing - 4th control mode processing) Next, a fourth control mode process of SD3 in Fig. 6 will be described. The fourth control mode process is a process for setting (resetting) the first limit position P1 and the second limit position P2 after the setting timing has arrived.

[0142] Here, the first restriction position P1 and the second restriction position P2 are set after the setting timing has arrived for the following two reasons.

[0143] First, the first reason is as follows. That is, when the power supply of the opening / closing device 1 is turned off, the connection between the opening / closing device 40 and the winding shaft by the clutch of the opening / closing device 40 may be released in order to manually operate the opening / closing device 40. In this case, when the opening / closing device 40 is manually operated, the position of the closing direction end of the opening / closing body 30 may be shifted, and the position detection unit 70 may not be able to accurately detect the position of the closing direction end of the opening / closing body 30. For this reason, there is a risk that the opening / closing movement of the opening / closing body 30 may not be accurately stopped at the first limit position P1 and the second limit position P2 set in the first control mode processing, and this is to avoid the occurrence of such a problem.

[0144] Although the opening / closing device 40 is not necessarily manually operated after the opening / closing device 1 is powered off, the control device 90 cannot receive a clutch release signal when the opening / closing device 1 is powered off, and therefore the control device 90 cannot recognize the connection state between the opening / closing device 40 and the winding shaft. Therefore, in the first embodiment, the fourth control mode process is executed simply when the power to the opening / closing device 1 is turned off and then restored (specifically, when the power is turned on).

[0145] The second reason is as follows: That is, when the power supply of the opening / closing device 1 is on and the connection between the opening / closing device 40 and the winding shaft by the clutch of the opening / closing device 40 is released in order to manually operate the opening / closing device 40, as described above, the position of the closing direction side end of the opening / closing body 30 may be shifted due to manual operation of the opening / closing device 40, and the position detection unit 70 may not be able to accurately detect the position of the closing direction side end of the opening / closing body 30 (in this case, the control device 90 receives a clutch release signal). Therefore, there is a risk that the opening / closing movement of the opening / closing body 30 may not be accurately stopped at the first limit position P1 and the second limit position P2 set in the first control mode process, and this is to avoid the occurrence of such a problem.

[0146] When the fourth control mode process is started, the opening / closing movement control section 94a determines whether or not the first operation instruction has been received via the operation device 60 in SE1, as shown in FIG.

[0147] Here, the "first operation instruction" refers to an operation instruction received via the operating device 60 that instructs to perform the first opening / closing control, and in embodiment 1, this corresponds to the instruction indicated by the closing signal (i.e., an instruction to move the opening / closing body 30 in the closing direction away from the reference position PP by moving the opening / closing body 30 in the closing direction).

[0148] Furthermore, the method for determining whether or not the first operation instruction has been accepted is arbitrary, but in the first embodiment, the determination is made based on whether or not a close signal has been input from the operation device 60. Here, if a close signal has been input, it is determined that the first operation instruction has been accepted, and if a close signal has not been input, it is determined that the first operation instruction has not been accepted.

[0149] Then, if it is determined that the first operation instruction has been accepted (SE1, Yes), the opening / closing movement control unit 94a proceeds to SE2, and if it is determined that the first operation instruction has not been accepted (SE1, No), it proceeds to SE8.

[0150] In SE2, the opening / closing movement control section 94a executes the first opening / closing control.

[0151] Specifically, the opening / closing movement control unit 94a moves the opening / closing body 30 in the closing direction so that the closing direction side end of the opening / closing body 30 moves away from the reference position PP based on the first operation instruction (more specifically, the instruction indicated by the closing signal) received in SE1 until the processing of SE4 described below is started.

[0152] Furthermore, regarding the details of the control content of this first opening / closing control, in embodiment 1, the opening / closing movement of the opening / closing body 30 corresponding to the self-holding operation is controlled (the same applies to the first opening / closing control in embodiment 2).

[0153] In addition, in embodiment 1, if an operation instruction other than the first operation instruction (for example, an instruction indicated by a stop signal or an instruction indicated by an open signal) is received via the operating device 60 while the first opening / closing control is being executed, the opening / closing movement control unit 94a stops the opening / closing movement of the opening / closing body 30 by the first opening / closing control and then returns to the processing of SE1 (the same applies to the fourth control mode processing according to embodiment 2).

[0154] In SE3, the opening / closing movement control section 94a determines whether or not the opening / closing body 30 has been opened or closed by a predetermined amount or for a predetermined time by the first opening / closing control in SE2.

[0155] Here, the method for setting the "predetermined amount" and "predetermined time" is arbitrary, but in embodiment 1, they are set to values ​​that allow the user to easily see that the opening / closing body 30 is moving open and closed, and that will not cause malfunction of the opening / closing body 30 or opening / closing mechanism 40 even if the opening / closing body 30 is pressed against the floor of a building, etc.

[0156] For example, the "predetermined amount" may be set to approximately 100 mm to 200 mm, and the "predetermined time" may be set to approximately 1 second to 3 seconds.

[0157] Furthermore, the method for determining whether the opening-closing body 30 has been moved open or closed by this predetermined amount or for a predetermined period of time is arbitrary, but in the first embodiment, the determination is made based on whether the difference between the position of the closing direction end of the opening-closing body 30 indicated by the position signal received as input from the position detection unit 70 during processing of SE2 and the position of the closing direction end of the opening-closing body 30 indicated by the position signal received as input from the position detection unit 70 during processing of SE3 reaches the predetermined amount, or whether a predetermined time has elapsed since processing of SE2 began. Here, if the difference reaches the predetermined amount or the predetermined time has elapsed, it is determined that the opening-closing body 30 has been moved open or closed by the predetermined amount or for the predetermined period of time, and if the difference does not reach the predetermined amount or the predetermined time has not elapsed, it is determined that the opening-closing body 30 has not been moved open or closed by the predetermined amount or for the predetermined period of time.

[0158] However, the present invention is not limited to this, and the determination may be made based solely on whether the difference has reached the predetermined amount, or based solely on whether the predetermined time has elapsed.

[0159] Then, if the opening / closing movement control unit 94a determines that the opening / closing body 30 has been moved open or closed by a predetermined amount or for a predetermined time (SE3, Yes), it proceeds to SE4, and if it determines that the opening / closing body 30 has not been moved open or closed by a predetermined amount or for a predetermined time (SE3, No), it proceeds to SE7.

[0160] In SE4, the opening / closing movement control section 94a executes the second opening / closing control.

[0161] Specifically, when the processing of SE4 is performed immediately after the processing of SE3 or immediately after it is determined that the opening / closing device 40 is in an overload state in the processing of SE7 described below, the opening / closing movement control unit 94a stops the opening / closing movement of the opening / closing body 30 by the first opening / closing control regardless of the type of operation instruction received via the operating device 60 (except for a stop signal instruction) until the processing of SE6 described below is started, and then moves the opening / closing body 30 to open so that the closing direction side end of the opening / closing body 30 approaches the reference position PP (i.e., moves the opening / closing body 30 to open even if a close signal instruction has been received).

[0162] In addition, in embodiment 1, if a stop signal instruction is received via the operating device 60 during processing of SE4 or while the second opening / closing control is being executed, the opening / closing movement control unit 94a stops the opening / closing movement of the opening / closing body 30 and then returns to processing of SE1 (the same applies to the fourth control mode processing according to embodiment 2).

[0163] Furthermore, when processing SE4 is performed immediately after processing SE8, the opening / closing movement control unit 94a moves the opening / closing body 30 in the opening direction so that the closing direction side end of the opening / closing body 30 approaches the reference position PP based on the second operation instruction described below that is received in SE8 via the operation device 60 until processing SE6 described below is started.

[0164] Furthermore, regarding the details of the control content of these second opening / closing controls, in embodiment 1, the opening / closing movement of the opening / closing body 30 corresponding to the self-holding operation is controlled (the same applies to the second opening / closing control in embodiment 2).

[0165] In SE5, the return setting unit 94b determines whether or not the position of the closing direction side end of the opening / closing body 30 has reached the reference position PP as a result of the second opening / closing control in SE4.

[0166] There is no particular limitation on the method for determining whether the reference position PP has been reached, but in the first embodiment, the determination is made based on whether the overload detection unit 94c has detected that the switchgear 40 is in an overload state (specifically, that the rotation speed of the drive unit indicated by the rotation speed signal received as input from the rotation speed detection unit 80 during processing of SE5 is less than a threshold value). If the overload state is detected, it is determined that the reference position PP has been reached, and if the overload state is not detected, it is determined that the reference position PP has not been reached.

[0167] Furthermore, the method for setting the threshold value is arbitrary, but in embodiment 1, the detection sensitivity of the overload detection unit 94c during the second opening / closing control is set to be relatively low, and for example, the threshold value may be set to a threshold value of the second threshold value information pre-stored in the memory unit 95 that indicates a relatively low value (for example, a threshold value that is approximately the same as the threshold value used in the processing of SC1).

[0168] Then, the return setting unit 94b waits until it is determined that the reference position PP has been reached (SE5, No), and if it is determined that the reference position PP has been reached (SE5, Yes), the process proceeds to SE6.

[0169] Here, for example, if it is determined that the reference position PP has been reached, the setting of the reference position PP processed in SC2 may be retained as is. Specifically, the position indicated by the reference position information stored in the memory unit 95 may be set (reset) as the reference position PP. Alternatively, the setting of the reference position PP processed in SC2 may not be retained. Specifically, the position of the closing direction side end of the opening / closing body 30 indicated by the position signal received as input from the position detection unit 70 during the processing of SE5 may be set (reset) as the reference position PP.

[0170] In SE6, the return setting unit 94b sets (resets) the first limiting position P1 and the second limiting position P2 based on the first distance and the second distance calculated in SC2.

[0171] Specifically, to set the first restriction position P1, a position that is a first distance away from the reference position PP set during processing of SE5 is calculated based on the first distance information stored in the memory unit 95, and the calculated position is set as the first restriction position P1.

[0172] Furthermore, when setting the second restriction position P2, if the second distance is the distance from the second restriction position P2 set in SB2 to the reference position PP set in SC1, a position that is the second distance away from the reference position PP set during processing of SE5 is calculated based on the second distance information stored in the memory unit 95, and the calculated position is set as the second restriction position P2.

[0173] However, this is not limited to this. For example, if the second distance is the distance from the first restriction position P1 set in SB1 to the second restriction position P2 set in SB2, a position that is the second distance away from the first restriction position P1 set in SE6 may be calculated, and the calculated position may be set as the second restriction position P2.

[0174] Thereafter, the control unit 94 ends the fourth control mode process, switches the control mode from the fourth control mode to the third control mode, returns to the third control mode process of Fig. 6, and proceeds to SD1. Thereafter, the control unit 94 similarly repeats the processes from SD1 to SD8.

[0175] These processes from SE1 to SE6 make it possible to reliably perform the opening and closing movement of the opening / closing body 30 when the setting timing arrives, compared to the conventional technology (technology that restricts the opening and closing movement of the shutter curtain when a second operation instruction is received after the power supply to the shutter device has been restored after a power outage). Therefore, when the setting timing arrives, it is possible to reliably set the limit position again, and it is possible to prevent the user from mistaking the opening and closing device 1 for a malfunction, thereby improving the usability of the opening and closing device 1.

[0176] In embodiment 1, while processing from SE2 to SE5 and SE7 described below is being performed, in order to notify the user that the restriction position is being re-set, the control unit 94 continuously or intermittently outputs notification information indicating this via an output means (e.g., an audio output means and / or a display means) (the same applies to the opening and closing processing in embodiment 2).

[0177] Returning to FIG. 7, in SE7 the overload detection unit 94c determines whether or not the opening / closing device 40 is in an overload state in order to avoid failure of the opening / closing body 30 and / or the opening / closing device 40 during the first opening / closing control.

[0178] While any method can be used to determine whether or not an overload state exists, in the first embodiment, the determination is made based on whether or not the rotation speed of the drive unit indicated by the rotation speed signal received as input from the rotation speed detection unit 80 during processing of SE7 is less than a threshold value. If the rotation speed is less than the threshold value, it is determined that an overload state exists, and if the rotation speed is not less than the threshold value, it is determined that an overload state does not exist.

[0179] Here, the method for setting the above threshold value is arbitrary, but in embodiment 1, the detection sensitivity of the overload detection unit 94c during the first opening / closing control is set to be higher than the detection sensitivity of the overload detection unit 94c during the second opening / closing control (in other words, the detection sensitivity of the overload detection unit 94c during the first opening / closing control is set to be higher than the detection sensitivity of the overload detection unit 94c during the second opening / closing control).

[0180] For example, the threshold value may be set to a relatively high value (for example, a threshold value approximately two to five times the threshold value of the second threshold value information) that is the threshold value of the third threshold value information pre-stored in the storage unit 95.

[0181] This allows the detection sensitivity of the overload detection unit 94c to be set relatively high during the first opening / closing control, making it easier to avoid malfunctions of the opening / closing body 30 and / or opening / closing mechanism 40 (for example, the opening / closing body 30 being pressed against the floor of a building, etc., causing part of the opening / closing body 30 to bend).

[0182] If the overload detection unit 94c determines that the switch 40 is not in an overload state (SE7, No), it proceeds to SE3. On the other hand, if the overload detection unit 94c determines that the switch 40 is in an overload state (SE7, Yes), it stops the first opening and closing control and proceeds to SE4 (i.e., it stops the first opening and closing control and performs the second opening and closing control).

[0183] By processing SE2 to SE4 and SE7 in this manner, if an overload state of the opening / closing device 40 is detected while the first opening / closing control is being performed, the first opening / closing control can be stopped and the second opening / closing control can be performed, making it easier to avoid malfunctions of the opening / closing body 30 and / or the opening / closing device 40.

[0184] In SE8, the opening / closing movement control unit 94a determines whether the second operation instruction has been received via the operation device 60.

[0185] Here, the "second operation instruction" refers to an operation instruction received via the operating device 60 that instructs to perform a second opening / closing control, and in embodiment 1, this corresponds to the instruction indicated by the opening signal (i.e., an instruction to move the opening / closing body 30 in an opening direction, thereby bringing the closing direction side end of the opening / closing body 30 closer to the reference position PP).

[0186] Furthermore, the method for determining whether or not the second operation instruction has been accepted is arbitrary, but in the first embodiment, the determination is made based on whether or not an open signal has been input from the operation device 60. Here, if an open signal has been input, it is determined that the second operation instruction has been accepted, and if an open signal has not been input, it is determined that the second operation instruction has not been accepted.

[0187] If it is determined that the second operation instruction has been received (SE8, Yes), the opening / closing movement control unit 94a proceeds to SE4 (i.e., performs the second opening / closing control without performing the first opening / closing control). After that, if it is determined in SE5 that the position of the closing direction side end of the opening / closing body 30 has reached the reference position PP due to the opening / closing movement of the opening / closing body 30, the first limit position P1 and the second limit position P2 are set in SE6.

[0188] On the other hand, if it is determined that the second operation instruction has not been accepted (SE8, No), the opening / closing movement control unit 94a proceeds to SE1, and thereafter similarly repeats the processing from SE1 to SE8.

[0189] By processing SE8, SE4 to SE6 in this manner, if the second operation instruction is accepted when the setting timing arrives, the second opening / closing control can be performed without performing the first opening / closing control, and the limit position can be set again more smoothly than if the first operation instruction is accepted when the setting timing arrives.

[0190] In addition, in embodiment 1, while the processing of SE8, SE4, SE5, and SE7 is being performed, the control unit 94 outputs the above-mentioned notification information continuously or intermittently via the output means in order to notify the user that the restriction position is being re-set (the same applies to the opening and closing processing in embodiment 2).

[0191] By performing the opening and closing process described above, when the setting timing arrives, the first restricting position P1 and the second restricting position P2 can be easily set while avoiding the user from mistakenly believing that the opening and closing device 1 is malfunctioning, and the setting work for the first restricting position P1 and the second restricting position P2 can be performed easily and smoothly.

[0192] (Effects of the First Embodiment) Thus, according to the first embodiment, when the setting timing arrives, if the first operation instruction is received via the operation device 60, the opening / closing movement control unit 94a performs the first opening / closing control to move the opening / closing body 30 open or closed by a predetermined amount or for a predetermined time, and then performs the second opening / closing control, and the return setting unit 94b sets the limit position when the end of the opening / closing body 30 on the closing direction side reaches the reference position PP as a trigger by the second opening / closing control. Therefore, compared to the conventional technology (technology that restricts the opening / closing movement of the shutter curtain when the second operation instruction is received after the power supply to the shutter device is restored after a power outage), the opening / closing movement of the opening / closing body 30 can be reliably performed when the setting timing arrives. Therefore, when the setting timing arrives, the limit position can be reliably set, and the user's misidentification of a malfunction of the opening / closing device 1 can be avoided, thereby improving the usability of the opening / closing device 1.

[0193] Furthermore, when the opening / closing movement control unit 94a is performing the first opening / closing control by receiving the first operation instruction via the operating device 60 after the set timing has arrived, if the overload detection means detects that the opening / closing machine 40 is in an overload state, the first opening / closing control is stopped and the second opening / closing control is performed.Therefore, when the first opening / closing control is being performed and an overload state of the opening / closing machine 40 is detected, the first opening / closing control can be stopped and the second opening / closing control can be performed, making it easier to avoid malfunctions of the opening / closing body 30 and / or the opening / closing machine 40 (for example, when the opening / closing body 30 is pressed, causing a part of the opening / closing body 30 to bend).

[0194] Furthermore, since the detection sensitivity of the overload detection means during the first opening / closing control is set higher than the detection sensitivity of the overload detection means during the second opening / closing control, the detection sensitivity of the overload detection means during the first opening / closing control can be set relatively high, making it even easier to avoid malfunctions of the opening / closing body 30 and / or opening / closing machine 40.

[0195] Furthermore, when the setting timing arrives, if the opening / closing movement control unit 94a receives the second operation instruction via the operating device 60, it performs the second opening / closing control without performing the first opening / closing control, and the return setting unit 94b sets the limit position when the end of the opening / closing body 30 on the closing direction side reaches the reference position PP as a trigger due to the second opening / closing control. Therefore, when the setting timing arrives and the second operation instruction is received, the second opening / closing control can be performed without performing the first opening / closing control, and the limit position can be set again more smoothly than when the setting timing arrives and the first operation instruction is received.

[0196] Second Embodiment Next, a control system according to a second embodiment will be described. In this second embodiment, the reference position is a position between the first limit position and the second limit position. However, the configuration of this second embodiment is substantially the same as the configuration of the first embodiment, except where otherwise specified. Therefore, the configuration that is substantially the same as the configuration of the first embodiment will be assigned the same symbols and / or names as those used in the first embodiment as necessary, and the description thereof will be omitted.

[0197] (composition) First, the configuration of a switching device 100 according to the second embodiment will be described.

[0198] As shown in Fig. 8, the switching device 100 according to the second embodiment is configured in a manner similar to that of the switching device 1 according to the first embodiment. However, the details of the configuration of the control system 50 are modified as follows.

[0199] (Configuration - Details of the control system configuration) Next, the configuration of the control system 50 will be described in detail.

[0200] As shown in FIG. 8, the control system 50 according to the second embodiment includes an operating device 60, a position detector 70, a rotation speed detector 80, a passage detector 110, and a control device 90.

[0201] (Configuration - Control System - Operation Device) The operating device 60 has substantially the same configuration as the operating device 60 according to the first embodiment.

[0202] (Configuration - Control system - Position detection unit, rotation speed detection unit) The position detection unit 70 has substantially the same configuration as the position detection unit 70 according to the first embodiment.

[0203] Moreover, the rotation speed detection unit 80 has substantially the same configuration as the rotation speed detection unit 80 according to the first embodiment.

[0204] (Configuration - Control System - Passage Detection Unit) The passage detection unit 110 is a passage detection means that detects whether or not the closing direction side end of the opening / closing body 30 has passed through the reference position PP. This passage detection unit 110 is configured using, for example, a known detection means (e.g., a mechanical limit), and is provided in the vicinity of the opening / closing device 40 as shown in FIG.

[0205] Here, in the second embodiment, the "reference position PP" is described as a position between the first restricting position P1 (in FIG. 8, the fully open position or a position nearby thereto, etc.) and the second restricting position P2 (in FIG. 8, the fully closed position or a position nearby thereto, etc.) as shown in FIG. 8 (for example, a position a predetermined distance (for example, about 500 mm) away from the first restricting position P1, etc.).

[0206] Furthermore, when the passage detector 110 is a mechanical limiter, the detection operation is arbitrary, but for example, it is as follows.

[0207] In other words, when the position of the closing direction side end of the opening / closing body 30 is between the first limit position P1 and the reference position PP, the contact state of the microswitch of the passage detection unit 110 is set to the off state, and when the position of the closing direction side end of the opening / closing body 30 is between the second limit position P2 and the reference position PP, the contact state of the microswitch of the mechanical limit is set to the on state.When the opening / closing body 30 is moved to close so that the position of the closing direction side end of the opening / closing body 30 is changed from a position above the reference position PP to a position below the reference position PP, and the contact state of the microswitch is switched from the off state to the on state, a signal indicating that the closing direction side end of the opening / closing body 30 has passed the reference position PP (hereinafter referred to as the "passage signal") is output.

[0208] In addition, when the opening / closing body 30 is moved to open so that the position of the closing direction side end of the opening / closing body 30 is changed from a lower position to an upper position above the reference position PP, the contact state of the microswitch is switched from an on state to an off state, and a passing signal is output.

[0209] On the other hand, if the opening and closing movement of the opening and closing body 30 is performed so that the position of the closing direction side end of the opening and closing body 30 remains lower (or higher) than the reference position PP, and the contact state of the microswitch cannot be switched, no passing signal is output.

[0210] In addition, when the position of the closing direction side end of the opening / closing body 30 is located below the reference position PP (closing direction side), a signal indicating this (hereinafter referred to as the ``closing direction side signal'') is output, and when the position of the closing direction side end of the opening / closing body 30 is located above the reference position PP (opening direction side), a signal indicating this (hereinafter referred to as the ``opening direction side signal'') is output.

[0211] (Configuration - Control System - Control Device) The control device 90 has substantially the same configuration as the control device 90 according to the first embodiment.

[0212] (Opening and closing process) Next, the opening and closing process executed by the control unit 94 of the control device 90 of the control system 50 will be described.

[0213] In the opening and closing process according to the second embodiment, similarly to the opening and closing process according to the first embodiment, at SA1 the control unit 94 sets the control mode to the first control mode and starts the first control mode process.

[0214] (Open / close processing - 1st control mode processing) Next, the first control mode process of SA1 will be described.

[0215] The first control mode process according to embodiment 2 is substantially the same as the first control mode process according to embodiment 1, and therefore a description thereof will be omitted. After the process at SB2, the control unit 94 switches the control mode from the first control mode to the second control mode at SA2 and starts the second control mode process.

[0216] (Open / close processing - second control mode processing) Next, the second control mode process of SA2 will be described.

[0217] SC2 and SC3 in the second control mode processing according to the second embodiment are similar to SC2 and SC3 in the second control mode processing according to the first embodiment, and therefore a description thereof will be omitted.

[0218] In addition, in SC1, the control unit 94 sets the reference position PP.

[0219] The method for setting this reference position PP is arbitrary, but in the second embodiment, it is set as follows.

[0220] That is, first, the opening / closing movement control unit 94a moves the opening / closing body 30 to a predetermined position (specifically, a position where the closing direction side end of the opening / closing body 30 is between the first limit position P1 and the second limit position P2) (note that in the second embodiment, the opening / closing movement of the opening / closing body 30 is not stopped based on the first limit position P1 and the second limit position P2 until the processing of SC1 is completed). Specifically, the opening / closing body 30 is moved to an opening or closing position based on an operation signal input from the operating device 60 by a predetermined operation. Note that the details of the control of this opening / closing movement are substantially the same as the specific processing of SD5, and specifically, the opening / closing movement of the opening / closing body 30 corresponding to the push-off operation is controlled.

[0221] Next, after the opening / closing body 30 has moved to the above-mentioned predetermined position and stopped, if a predetermined setting operation related to the passage detection unit 110 is accepted in a predetermined manner, the control unit 94 sets the above-mentioned predetermined position as a reference position PP and stores reference position information indicating the set reference position PP in the memory unit 95. Thereafter, the opening / closing body 30 is automatically moved to the open position from the reference position PP to the first limit position P1.

[0222] After the process of SC3, the control unit 94 switches the control mode from the second control mode to the third control mode in SA3, and starts the third control mode process.

[0223] (Open / close processing - 3rd control mode processing) Next, the second control mode process of SA3 will be described.

[0224] SD1, SD2, and SD4 to SD8 in the third control mode processing according to the second embodiment are similar to SD1, SD2, and SD4 to SD8 in the third control mode processing according to the first embodiment, respectively, and therefore description thereof will be omitted.

[0225] Furthermore, if it is determined in SD2 that the return timing has arrived (SD2, Yes), the control unit 94 switches the control mode from the third control mode to the fourth control mode and starts the fourth control mode process (SD3).

[0226] (Open / close processing - 4th control mode processing) Next, the fourth control mode process of SD3 will be described.

[0227] When the fourth control mode process is started, the opening / closing movement control section 94a determines whether or not the first operation instruction has been received via the operation device 60 in SF1, as shown in FIG.

[0228] Here, in embodiment 2, the "first operation instruction" refers to the instruction indicated by the opening signal when the closing direction side end of the opening / closing body 30 is positioned above the reference position PP (i.e., an instruction to move the opening / closing body 30 in an opening direction to move the closing direction side end of the opening / closing body 30 away from the reference position PP).

[0229] Furthermore, when the position of the closing direction side end of the opening / closing body 30 is lower than the reference position PP, the instruction indicated by the closing signal (i.e., an instruction to move the opening / closing body 30 in the closing direction away from the reference position PP by moving the opening / closing body 30 in the closing direction) applies.

[0230] Furthermore, the method of determining whether or not the first operation instruction has been accepted is arbitrary, but in the second embodiment, the judgment is made based on whether or not an input of an open signal has been accepted from the operating device 60 when an opening direction side signal is output from the passage detection unit 110 during the processing of SF1, or whether or not an input of a close signal has been accepted from the operating device 60 when a closing direction side signal is output from the passage detection unit 110 during the processing of SF1. Here, if an input of an open signal has been accepted when the opening direction side signal has been output, or if an input of a close signal has been accepted when the closing direction side signal has been output, it is determined that the first operation instruction has been accepted. Furthermore, if an input of an open signal has not been accepted when the opening direction side signal has been output, or if an input of a close signal has not been accepted when the closing direction side signal has been output, it is determined that the first operation instruction has not been accepted.

[0231] Then, if it is determined that the first operation instruction has been accepted (SF1, Yes), the opening / closing movement control unit 94a transitions to SF2, and if it is determined that the first operation instruction has not been accepted (SF1, No), it transitions to SF8.

[0232] In SF2, the opening / closing movement control section 94a executes the first opening / closing control.

[0233] Specifically, when an opening direction side signal is output from the passage detection unit 110 during processing of SF1 (i.e., when the position of the closing direction side end of the opening / closing body 30 is higher than the reference position PP), the opening / closing body 30 is moved in an opening direction so that the closing direction side end of the opening / closing body 30 moves away from the reference position PP based on the first operation instruction received in SF1 (more specifically, the instruction indicated by the opening signal).

[0234] Furthermore, if a closing direction side signal is output from the passage detection unit 110 during processing of SF1 (i.e., if the position of the closing direction side end of the opening / closing body 30 is lower than the reference position PP), the opening / closing body 30 is moved in the closing direction so that the closing direction side end of the opening / closing body 30 moves away from the reference position PP based on the first operation instruction (more specifically, the instruction indicated by the closing signal) received in SF1.

[0235] In SF3, the opening / closing movement control section 94a determines whether the opening / closing body 30 has been opened or closed by a predetermined amount or for a predetermined time by the first opening / closing control in SF2, in substantially the same manner as in the processing in SE3.

[0236] Then, if the opening / closing movement control unit 94a determines that the opening / closing body 30 has been moved open or closed by a predetermined amount or for a predetermined time (SF3, Yes), it transitions to SF4, and if it determines that the opening / closing body 30 has not been moved open or closed by a predetermined amount or for a predetermined time (SF3, No), it transitions to SF7.

[0237] In SF4, the opening / closing movement control section 94a executes the second opening / closing control.

[0238] Specifically, when processing SF4 is performed immediately after processing SF3, the opening / closing movement control unit 94a moves the opening / closing body 30 in an opening / closing direction so that the closing direction side end of the opening / closing body 30 approaches the reference position PP, regardless of the type of operation instruction received via the operating device 60 (except for stop signal instructions), until processing SF6 described below is started.

[0239] More specifically, if an opening direction side signal is output from the passage detection unit 110 during processing of SF1 (i.e., if the position of the closing direction side end of the opening / closing body 30 is higher than the reference position PP), the opening / closing body 30 is moved in the closing direction so that the closing direction side end of the opening / closing body 30 approaches the reference position PP.

[0240] Furthermore, if a closing direction side signal is output from the passage detection unit 110 during processing of SF1 (i.e., if the position of the closing direction side end of the opening / closing body 30 is lower than the reference position PP), the opening / closing body 30 is moved to the open position so that the closing direction side end of the opening / closing body 30 approaches the reference position PP.

[0241] Furthermore, when processing SF4 is performed immediately after processing SF8, the opening / closing movement control unit 94a moves the opening / closing body 30 to open or close so that the closing direction side end of the opening / closing body 30 approaches the reference position PP based on the second operation instruction received via the operating device 60 in SF8 until processing SF6 described below is started.

[0242] In SF5, the return setting unit 94b determines whether or not the position of the closing direction side end of the opening / closing body 30 has reached the reference position PP by the second opening / closing control in SF4.

[0243] While any method can be used to determine whether or not the reference position PP has been reached, in the second embodiment, the determination is made based on whether or not a passing signal has been received by the input unit 91. If a passing signal has been received, it is determined that the reference position PP has been reached, and if a passing signal has not been received, it is determined that the reference position PP has not been reached.

[0244] Then, the return setting unit 94b waits until it is determined that the reference position PP has been reached (SF5, No), and if it is determined that the reference position PP has been reached (SF5, Yes), the process proceeds to SF6.

[0245] In SF6, the return setting unit 94b sets (resets) the first limiting position P1 and the second limiting position P2 in substantially the same manner as in the processing in SE6.

[0246] Thereafter, the control unit 94 ends the fourth control mode process, switches the control mode from the fourth control mode to the third control mode, returns to the third control mode process of Fig. 6, and proceeds to SD1. Thereafter, the control unit 94 similarly repeats the processes from SD1 to SD8.

[0247] Returning to FIG. 9, in SF7, the overload detection unit 94c determines whether or not the switchgear 40 is in an overload state, in substantially the same manner as in the processing in SE7.

[0248] If the overload detection unit 94c determines that the switch 40 is not in an overload state (SF7, No), the process shifts to SF3. On the other hand, if the overload detection unit 94c determines that the switch 40 is in an overload state (SF7, Yes), the first opening / closing control is stopped and the process shifts to SF4.

[0249] In SF8, the opening / closing movement control section 94a determines whether the second operation instruction has been received via the operation device 60.

[0250] Here, in embodiment 2, the "second operation instruction" refers to the instruction indicated by the closing signal when the closing direction side end of the opening / closing body 30 is positioned above the reference position PP (i.e., an instruction to move the opening / closing body 30 in the closing direction, thereby bringing the closing direction side end of the opening / closing body 30 closer to the reference position PP).

[0251] Furthermore, when the position of the closing direction side end of the opening / closing body 30 is lower than the reference position PP, the instruction indicated by the opening signal (i.e., an instruction to move the opening / closing body 30 in the opening direction, thereby bringing the closing direction side end of the opening / closing body 30 closer to the reference position PP) applies.

[0252] Furthermore, the method for determining whether the second operation instruction has been accepted is arbitrary, but in the second embodiment, the judgment is made based on whether a close signal input has been accepted from the operating device 60 when an opening direction side signal is output from the passage detection unit 110 during processing of SF8, or whether an open signal input has been accepted from the operating device 60 when a closing direction side signal is output from the passage detection unit 110 during processing of SF8. Here, if the close signal input has been accepted when the opening direction side signal has been output, or if the open signal input has been accepted when the closing direction side signal has been output, it is determined that the second operation instruction has been accepted. Furthermore, if the close signal input has not been accepted when the opening direction side signal has been output, or if the open signal input has not been accepted when the closing direction side signal has been output, it is determined that the second operation instruction has not been accepted.

[0253] If it is determined that the second operation instruction has been received (SF8, Yes), the opening / closing movement control unit 94a proceeds to SF4 (i.e., performs the second opening / closing control without performing the first opening / closing control). After that, if it is determined in SF5 that the position of the closing direction side end of the opening / closing body 30 has reached the reference position PP due to the opening / closing movement of the opening / closing body 30, the first limit position P1 and the second limit position P2 are set in SF6.

[0254] On the other hand, if it is determined that the second operation instruction has not been accepted (SF8, No), the opening / closing movement control unit 94a proceeds to SF1, and thereafter similarly repeats the processes from SF1 to SF8.

[0255] By the above-described opening and closing process, similar to the opening and closing process according to embodiment 1, when the setting timing arrives, the first restriction position P1 and the second restriction position P2 can be automatically set while avoiding the user from mistakenly believing that the opening and closing device 100 is malfunctioning, and the setting work of the first restriction position P1 and the second restriction position P2 can be performed easily and smoothly.

[0256] (Effects of the second embodiment) According to the second embodiment, similarly to the control system 50 according to the first embodiment, when the setting timing arrives, if the first operation instruction is received via the operating device 60, the opening / closing movement control unit 94a performs a first opening / closing control for moving the opening / closing body 30 open or closed by a predetermined amount or for a predetermined time, and then performs a second opening / closing control, and the return setting unit 94b sets the limit position when the end of the opening / closing body 30 on the closing direction side reaches the reference position PP as a trigger by the second opening / closing control. Therefore, compared to the prior art, the opening / closing movement of the opening / closing body 30 can be reliably performed when the setting timing arrives. Therefore, when the setting timing arrives, the limit position can be reliably set, and the user's misidentification of a malfunction of the opening / closing device 100 can be avoided, thereby improving the usability of the opening / closing device 100.

[0257] [III] Modifications to the embodiment Although the embodiments of the present invention have been described above, the specific configurations and means of the present invention can be modified and improved as desired within the scope of the technical ideas of the inventions set forth in the claims. Such modifications will be described below.

[0258] (About the problem to be solved and the effects of the invention) First, the problems that the invention aims to solve and the effects of the invention are not limited to those described above, and the present invention may solve problems that are not described above or achieve effects that are not described above, or may solve only some of the problems that are described or achieve only some of the effects that are described.

[0259] (Regarding decentralization and integration) Furthermore, the electrical components described above are merely functional concepts and do not necessarily need to be physically configured as illustrated. In other words, the specific form of distribution or integration of each component is not limited to that shown in the figure, and all or part of the components can be functionally or physically distributed or integrated in any unit depending on various loads, usage conditions, etc. Furthermore, the term "device" in this application is not limited to a single device but also includes a configuration consisting of multiple devices. For example, the control device 90 may be distributed across multiple devices configured to be able to communicate with each other, with a control unit 94 provided in some of the multiple devices and a memory unit 95 provided in other of the multiple devices.

[0260] (shape, numbers, structure, time series) The components illustrated in the embodiments and drawings may be modified and improved as desired within the scope of the technical concept of the present invention in terms of shape, numerical value, or the structure or chronological relationship of multiple components.

[0261] (Regarding the reference position) In the above-described first embodiment, the reference position PP is described as being above the limit position, but is not limited to this, and may be, for example, below the limit position.

[0262] In this case, in SE2 of the opening / closing process, the opening / closing movement control unit 94a may move the opening / closing body 30 in the opening direction so that the closing direction side end of the opening / closing body 30 moves away from the reference position PP based on the first operation instruction (more specifically, the instruction indicated by the opening signal). Also, in SE4 of the opening / closing process, the opening / closing movement control unit 94a may move the opening / closing body 30 in the closing direction so that the closing direction side end of the opening / closing body 30 moves closer to the reference position PP, regardless of the type of operation instruction.

[0263] (Regarding control systems) In the above-mentioned first and second embodiments, the control system 50 has been described as including the rotation speed detection unit 80, but this is not limited thereto. For example, any detection means capable of detecting the load amount of the drive unit of the switchgear 40 may be used, and as one example, a detection device capable of detecting the voltage value or current value of the drive unit of the switchgear 40 may be used. Note that with regard to the voltage value or current value of this drive unit, a higher voltage value or current value indicates a higher load amount of the drive unit, and a lower voltage value or current value indicates a lower load amount of the drive unit.

[0264] Furthermore, in the above-mentioned second embodiment, the control system 50 was described as being equipped with a rotation speed detection unit 80 and an overload detection unit 94c, but this is not limited thereto, and for example, instead of the rotation speed detection unit 80 and the overload detection unit 94c, the control system 50 may be equipped with a seat plate switch (obstacle detection means) provided on the seat plate 32.

[0265] In this case, in SD6 and SF7 of the opening / closing process, the control unit 94 may determine whether or not an obstacle (e.g., a person or object passing through the opening 2) is present based on whether or not an obstacle detection signal is received from the seat switch.

[0266] (Overload detection section) In the above embodiment 1, it was explained that the detection sensitivity of the overload detection unit 94c during the first opening / closing control is set higher than the detection sensitivity of the overload detection unit 94c during the second opening / closing control, but this is not limited to this, and it may be set, for example, to be lower than the detection sensitivity of the overload detection unit 94c during the second opening / closing control.

[0267] (Regarding setting timing) In the above-described first and second embodiments, the setting timing is essentially the timing after the processes of SD1 and SD2 have been executed, but this is not limited thereto. For example, even if the power supply from the commercial power source to the switchgear 1 is stopped during execution of the third control mode process of SA3, if the fourth control mode process can be executed using the power of the power supply unit 93 of the control device 90 and / or an emergency power supply unit (not shown), the fourth control mode process (SD3) may be executed after the process of SD1, omitting the process of SD2. In other words, the setting timing may simply be the timing after the process of SA1 has been executed.

[0268] (About opening and closing process) In the above-described first and second embodiments, the first control mode process and the second control mode process are described as being performed before the third control mode process, but this is not limiting. For example, if a predetermined operation is accepted via the operation device 60 during the third control mode process (or the fourth control mode process), the control unit 94 may stop the third control mode process (or the fourth control mode process), switch the control mode from the third control mode (or the fourth control mode) to the first control mode (or the second control mode), and perform the first control mode process (or the second control mode process) again.

[0269] In the above-described first and second embodiments, the reference position PP is set after the first and second restriction positions P1 and P2 are set, but this is not limiting. For example, the reference position PP may be set before the first and second restriction positions P1 and P2 are set.

[0270] Furthermore, in the above embodiment 1, it was explained that the processing of SE7 is executed in the fourth control mode processing, but this is not limited to this, and for example, the processing of SE7 may be omitted (the same applies to the fourth control mode processing according to embodiment 2).

[0271] Furthermore, in the above-described first embodiment, it has been described that the first limit position P1 and the second limit position P2 are set in SE6 based on the first distance and the second distance calculated in SC2. However, this is not limiting. For example, either the first limit position P1 or the second limit position P2 may be set based on the first distance or the second distance calculated in SC2. Alternatively, the other of the first limit position P1 or the second limit position P2 may be set by a method that is not based on the first distance or the second distance calculated in SC2 (for example, a method in which, while moving the opening / closing body 30 to open or close via the operating device 60, the position of the closing direction end of the opening / closing body 30 indicated by a position signal received as input from the position detection unit 70 at a predetermined timing is set as the limit position).

[0272] (Addendum) The control system of Supplementary Note 1 is a control system for controlling an opening / closing device having an opening / closing body that opens and closes an opening of a building, the control system comprising: an operating means for receiving an operation instruction related to the opening / closing device; and an opening / closing movement control means for controlling the opening / closing movement of the opening / closing body based on the operation instruction received via the operating means, the opening / closing movement control being capable of performing a first opening / closing control that is a control for opening / closing the opening / closing body so that an end portion of the opening / closing body on the closing direction side moves away from a reference position that is a reference position preset in the control system and serves as a reference for controlling the opening / closing movement of the opening / closing body; and a second opening / closing control that is a control for opening / closing the opening / closing body so that the end portion of the opening / closing body on the closing direction side approaches the reference position. and a return setting means for setting the limit position when a setting timing arrives, the limit position being a limit position preset in the control system and for limiting the opening / closing movement of the opening / closing body. When the setting timing arrives, if a first operation instruction, which is the operation instruction to perform the first opening / closing control, is received via the operation means, the opening / closing movement control means performs the first opening / closing control to move the opening / closing body open or closed by a predetermined amount or for a predetermined time, and then performs the second opening / closing control. The return setting means sets the limit position when triggered by the second opening / closing control causing the end of the opening / closing body on the closing direction side to reach the reference position.

[0273] The control system of Appendix 2 is the control system described in Appendix 1, and further includes an overload detection means for detecting whether or not the drive means for moving the opening / closing body to open or close is in an overload state, and when the first opening / closing control is being performed as a result of the first operation instruction being accepted via the operation means after the set timing has arrived, if the overload detection means detects that the drive means is in an overload state, the opening / closing movement control means stops the first opening / closing control and performs the second opening / closing control.

[0274] The control system of Appendix 3 is the control system described in Appendix 2, wherein the overload detection means detects whether the drive means is in an overload state during the first opening / closing control, and detects whether the drive means is in an overload state during the second opening / closing control, and the detection sensitivity of the overload detection means during the first opening / closing control is made higher than the detection sensitivity of the overload detection means during the second opening / closing control.

[0275] The control system of Supplementary Note 4 is a control system described in any one of Supplementary Notes 1 to 3, wherein when the setting timing arrives, if a second operation instruction, which is the operation instruction to perform the second opening / closing control, is received via the operation means, the opening / closing movement control means performs the second opening / closing control without performing the first opening / closing control, and the return setting means sets the limit position when triggered by the second opening / closing control causing the end of the opening / closing body on the closing direction side to reach the reference position.

[0276] (Effect of supplementary notes) According to the control system described in Supplementary Note 1, when the setting timing arrives, if the first operation instruction is received via the operation means, the opening / closing movement control means performs the first opening / closing control to move the opening / closing body open or closed by a predetermined amount or for a predetermined time, and then performs the second opening / closing control, and the return setting means sets the limit position when the end of the opening / closing body on the closing direction side reaches the reference position by the second opening / closing control, which is a trigger. Therefore, compared to the conventional technology (technology that restricts the opening / closing movement of the shutter curtain when the second operation instruction is received after the power supply to the shutter device is restored after a power outage), the opening / closing movement of the opening / closing body can be reliably performed when the setting timing arrives. Therefore, when the setting timing arrives, it is possible to reliably set the limit position, and it is possible to avoid the user mistaking the opening / closing device for a malfunction, thereby improving the usability of the opening / closing device.

[0277] According to the control system described in Appendix 2, when the opening / closing movement control means performs the first opening / closing control by receiving the first operation instruction via the operation means after the set timing has arrived, if the overload detection means detects that the drive means is in an overload state, the first opening / closing control is stopped and the second opening / closing control is performed.Therefore, when the first opening / closing control is being performed and an overload state of the drive means is detected, the first opening / closing control can be stopped and the second opening / closing control can be performed, making it easier to avoid malfunctions of the opening / closing body and / or drive means (for example, the opening / closing body being pressed against the floor surface of a building, etc., causing part of the opening / closing body to bend).

[0278] According to the control system described in Appendix 3, the detection sensitivity of the overload detection means during the first opening / closing control is set higher than the detection sensitivity of the overload detection means during the second opening / closing control, so that the detection sensitivity of the overload detection means during the first opening / closing control can be set relatively high, making it even easier to avoid failures in the opening / closing body and / or driving means.

[0279] According to the control system described in Appendix 4, when the setting timing arrives, if the second operation instruction is received via the operation means, the opening / closing movement control means performs the second opening / closing control without performing the first opening / closing control, and the return setting means sets the limit position when the end of the opening / closing body on the closing direction side reaches the reference position as a trigger due to the second opening / closing control.Therefore, when the second operation instruction is received when the setting timing arrives, the second opening / closing control can be performed without performing the first opening / closing control, and the limit position can be set again more smoothly than when the first operation instruction is received when the setting timing arrives. [Explanation of symbols]

[0280] 1 Switchgear 2 Opening 3 Wiring 10 Storage area 20 Guide rail 30 Opening and closing body 31 Slats 32 Seat board 40 Opening and Closing Machine 50 Control System 60 Operating device 70 Position detection unit 80 Rotation speed detection unit 90 Control device 91 Input section 92 Output section 93 Power supply section 94 Control Unit 94a Opening / closing movement control section 94b Return setting section 94c Overload detection section 95 Memory section 100 Switchgear 110 Passage detection unit P1 First limit position P2 Second limit position PP reference position

Claims

1. A control system for controlling an opening and closing device having an opening and closing body that opens and closes an opening in a building, an operation means for receiving an operation instruction regarding the opening and closing device; an opening / closing movement control means for controlling the opening / closing movement of the opening / closing body based on the operation instruction received via the operation means, a first opening / closing control that is a control for moving the opening / closing body so that an end portion of the opening / closing body on the closing direction side moves away from a reference position that is a reference position preset in the control system and serves as a reference for controlling the opening / closing movement of the opening / closing body; an opening / closing movement control means capable of performing a second opening / closing control, which is a control for opening and closing the opening / closing body so that the end of the opening / closing body on the closing direction side approaches the reference position; a restoring setting means for resetting the limiting position, which is preset in the control system and which limits the opening / closing movement of the opening / closing body, when a setting timing arrives for resetting the limiting position, When the set timing arrives, when a first operation instruction, which is the operation instruction instructing to perform the first opening / closing control, is received via the operation means, the opening / closing movement control means performs the first opening / closing control to open or close the opening / closing body by a predetermined amount or for a predetermined time, and then performs the second opening / closing control; the return setting means sets the limit position when the end of the opening / closing body in the closing direction reaches the reference position by the second opening / closing control. Control system.

2. an overload detection means for detecting whether or not a drive means for moving the opening / closing body to open or close is in an overload state; The opening / closing movement control means When the first opening / closing control is being performed by receiving the first operation instruction via the operation means after the set timing has arrived, if the overload detection means detects that the drive means is in an overload state, the first opening / closing control is stopped and the second opening / closing control is performed. The control system of claim 1 .

3. the overload detection means detects whether the drive means is in an overload state during the first opening / closing control, and detects whether the drive means is in an overload state during the second opening / closing control, The detection sensitivity of the overload detection means during the first opening and closing control is set higher than the detection sensitivity of the overload detection means during the second opening and closing control. The control system of claim 2 .

4. When the set timing arrives, when a second operation instruction, which is the operation instruction instructing to perform the second opening / closing control, is accepted via the operation means, the opening / closing movement control means performs the second opening / closing control without performing the first opening / closing control, the return setting means sets the limit position when the end of the opening / closing body in the closing direction reaches the reference position by the second opening / closing control. A control system according to any one of claims 1 to 3.

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