JP2016223076A - Opening and closing body device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening and closing body device with improved reliability of an obstacle detection signal that is wirelessly sent.SOLUTION: A receiving sensitivity level of a detection signal received from an obstacle detector 40 is visibly displayed. Thus an operator can move a detection signal receiver 20 in a shutter case 11 while visually inspecting the detection signal level displayed on a level display device 23, select a position where the detection signal strength level is the highest and dispose the detection signal receiver at the position. Therefore the work of the operator can be considerably reduced. The level display device 23 comprises an LED light emitting device and/or a liquid crystal display element, which are installed on the detection signal receiver 20, a wall surface that surrounds an opening, side faces of an attention light and a fire-retarding door, a remote control device switch 30 or the like.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an opening / closing body device installed at an entrance or an opening of a structure housing including a building such as a house, a building, a factory, or a warehouse, and in particular, an opening / closing body that wirelessly transmits a detection signal of an obstacle detection device. The present invention relates to a device and a reception sensitivity display method.

  Electric shutters and doors that open and close electrically are used for opening and closing devices such as shutter curtains and doors installed at the openings of structures including buildings such as buildings, factories, and warehouses. Many. Some devices that electrically open and close in this way include a wireless remote control transmitter of a wireless system for controlling the operation by remote control in recent years. This is largely due to the reduction of electrical problems caused by wired control, which has been conventionally performed, by adopting a wireless system.

  In the wireless system, an operation signal is transmitted and received by using any one of radio waves, infrared rays, ultrasonic waves, flash, or the like as a carrier medium, a signal is sent to a control device, and an electric shutter opening / closing device is operated. In the case where the shutter curtain is operated electrically, if there is an obstacle at the time of unwinding, there is a possibility that the shutter curtain may come into contact with the obstacle to cause a malfunction.

  In order to deal with these obstacles, an obstacle detector is generally provided on the shutter seat plate, and when any obstacle is detected, a certain avoidance action such as stopping the descent of the shutter curtain is performed. ing. As a method of sending a detection signal from an obstacle detector provided on the seat plate portion to the control device, a wireless signal such as infrared rays is used in addition to the wired method.

As what transmits the detection signal from an obstacle detector to a control apparatus by a radio | wireless system, what is shown to patent document 1, 2 is known.
Patent Document 1 describes that both the shutter opening / closing operation and the obstacle detection operation are performed by wireless communication.
The thing of patent document 2 uses a radio wave for transmission / reception of the detection of an obstruction, and can perform this now stably.
JP-A-10-061354 JP 09-317358 A

The thing of patent document 1 is receiving the obstruction detection signal and the operation signal with the same receiver. However, they are susceptible to strong electromagnetic waves such as illegal radio and arc welding. That is, in the prior art, signals are received using one type of carrier medium, but in Patent Document 1, signals are received using two or more types of carrier media.
In addition, the device described in Patent Document 2 can stably receive the detection signal by changing the transmission frequency of the obstacle detection signal in a predetermined frequency range during the transmission of the detection signal.

By the way, the surrounding environment of the shutter curtain in the building structure once installed often varies between construction and actual operation. For example, if electronic equipment or metal furniture or office supplies are installed near the shutter curtain, these electronic equipment, furniture, office supplies, etc. interfere with the signal emitted from the obstacle detection device, The transmission signal level may be attenuated.
If the transmission signal level is attenuated, the detection state in the obstacle detection device is hindered, and there is a possibility that the obstacle avoidance operation malfunctions when the shutter curtain is opened and closed. For this reason, there has been a strong demand at the building management site where the shutter curtains are installed to always visually confirm (view) the signal reception level during shutter operation after construction.
On the other hand, the device described in Patent Document 1 causes a malfunction when the receiving device receives various signals other than the operation signal and the obstacle detection signal in the installation space of the electric shutter. Although there is a description that two types of carrier media (for example, radio waves and infrared rays) are used because there is a fear, it is possible to visually recognize the reception state (level) of the receiving device and prevent the above-described malfunctions in advance. There is no description at all.
In addition, Patent Document 2 has a description of preventing the attenuation of radio waves that occur when environmental conditions change due to the opening / closing height position of the shutter curtain, but the reception state (level) is the same as in Patent Document 1. There is no mention of making it visible. Therefore, the present situation is that the reliability of the obstacle detection signal transmitted by the radio wave system has not been improved by a simple method.

  The present invention has been made in view of the above points, and it is an object of the present invention to provide an opening / closing body device and a reception sensitivity display method capable of improving the reliability of an obstacle detection signal transmitted by a radio wave radio system. .

The first feature of the opening / closing body device according to the present invention is that it is provided at an opening / closing body means for opening and closing an opening, and a closing-side tip of the opening / closing body means, and a detection signal is converted into a radio wave system when an obstacle is detected. Obstacle detection means for transmitting, detection signal reception means for receiving the detection signal from the obstacle detection means, level display means for displaying the level of the detection signal received from the obstacle detection means in a visible manner, and It is in having.
Opening and closing means is composed of members such as shutter curtains that open and close doorways and windows, or openings such as internal passages and spaces in buildings and structures such as buildings, houses, factories, and warehouses. Is done. When the opening / closing member means is a shutter curtain, for example, the shutter curtain is housed in an upper part of an opening of a building or the like, and the shutter curtain is lowered through a lintel or the like to close the opening. In addition to this, there is also a type in which the opening / closing body means is housed in the side portion of the opening and opened and closed by a horizontal pulling method, or is housed in the lower part of the opening and moved in an opening and closing manner. The opening / closing body means includes those that can be fully closed by closing and those that cannot be fully closed.
The obstacle detection means is provided at the closing end of the opening / closing body means and moves together with the opening / closing body means. For example, the obstacle detection means detects the presence of an obstacle on the moving path during the closing operation. The obstacle detection means transmits the detection signal to the opening / closing body control means provided in the storage box or the like of the opening / closing body means by a radio wave method. The opening / closing body control means that has received the detection signal from the obstacle detection means performs an obstacle avoidance operation or the like according to the detection signal. However, when an electronic device or a metal locker is installed in the vicinity of the opening / closing body, the signal from the obstacle detection means becomes weak and may cause a malfunction.
In this invention, the reception sensitivity level of the detection signal received from the obstacle detection means is displayed so as to be visible. As a result, the operator moves the detection signal receiving means variously in the shutter case while visually observing the level of the detection signal of the level display means, and selects and arranges the position where the intensity level of the received detection signal is the strongest. As a result, the operator's work can be greatly reduced.

A second feature of the switchgear device according to the present invention is the switchgear device according to the first feature, wherein the level display means is an LED light emitting element and / or a liquid crystal display provided in the detection signal receiving means. It consists of elements.
In this configuration, the level display means is provided directly on the detection signal receiving means. Thus, the detection signal receiving means can be installed at an optimum location while visually checking the signal level.

A third feature of the switchgear device according to the present invention is the switchgear device according to the first feature, wherein the level display means includes at least one of a wall surface around the opening, a warning light, and a side surface of the fire door. In other words, the LED light-emitting element and / or the liquid crystal display element are provided at the location.
In this case, the level display means is provided on the wall surface in the vicinity of the opening that is opened and closed by the opening / closing body means, the warning light provided on the ceiling, and / or the side surface of the fire door. Thus, by attaching the level display means to easy-to-see positions such as a wall surface, a warning light, and a fire door, the signal level can be easily visually confirmed.

A fourth feature of the switchgear device according to the present invention is the switchgear device according to the first feature, wherein the level display means outputs an operation signal relating to the opening and closing to the switchgear means. The LED light emitting device and / or the liquid crystal display device provided in the device.
In this case, the level display means is provided in the operation means for outputting an operation signal for opening / closing the opening / closing body means. The operation means corresponds to one provided on the wall surface or a remote control device switch. Since the signal level is displayed on the operation means that is always used during the opening / closing operation of the opening / closing body means, it can be easily confirmed at hand.

According to a fifth feature of the switchgear device according to the present invention, in the switchgear device according to the second, third, or fourth feature, the level display means corresponds to the level of the detection signal, and The level of the detection signal is visibly displayed by changing the lighting or blinking state of the LED light emitting element.
In this case, the level of the detection signal is displayed so as to be visible by changing the lighting or blinking state of the LED light emitting element. For example, when the LED light emitting element is a single element, it can be dealt with by changing the number of times of lighting or blinking, the time of lighting or blinking, and / or the light emission intensity at the time of lighting or blinking. In addition, when there are a plurality of LED light emitting elements, various level displays can be made possible by changing the emission color, the shape of the light emitter and the like in addition to these modes.

A sixth feature of the switchgear device according to the present invention is that, in the switchgear device according to the fifth feature, the number of times of lighting or flashing, the time of lighting or flashing, as the lighting or flashing state of the LED light emitting element. And / or changing the light emission intensity during lighting or flashing.
This corresponds to the case where a single LED light emitting element is used, and various levels can be displayed by variously changing the number of times of lighting or flashing, the time of lighting or flashing, and / or the light emission intensity at the time of lighting or flashing. It is what.

According to a seventh feature of the switchgear device according to the present invention, in the switchgear device according to any one of the first to sixth features, an interfering radio wave signal having a different frequency band as the detection signal is transmitted to the radio wave. In the case of reception by a wireless system, there is provided display means for displaying information on the received date and time.
This is because the information about the date and time when the jamming signal is received is stored, and then connected to a PC for output or output to an external memory or the like. Based on the information such as the occurrence time of the jamming signal, It is designed to be useful for tracking where from what device the jamming wave is generated. For example, if an interfering radio signal is generated at a specific time, it is easy to identify that the interfering radio signal is generated from a device that moves at that time. effective.

The first feature of the reception sensitivity display method according to the present invention is that a detection signal is received by a radio wave system from an obstacle detection means provided at a closing end of an opening / closing body means for opening and closing an opening. When transmitted to the means, the level of the detection signal received from the obstacle detection means is displayed so as to be visible.
This is an invention of a reception sensitivity display method corresponding to the first feature of the opening / closing body device.

According to a second aspect of the reception sensitivity display method of the present invention, in the reception sensitivity display method according to the first feature, an LED light emitting element and / or a liquid crystal display element provided in the detection signal receiving unit is used. The level of the detection signal is displayed so as to be visible.
This is an invention of a reception sensitivity display method corresponding to the second feature of the opening / closing body device.

A third feature of the reception sensitivity display method according to the present invention is the reception sensitivity display method according to the first feature, wherein the reception sensitivity display method is provided on at least one of the wall surface around the opening, the warning light, and the side surface of the fire door. The level of the detection signal is visibly displayed using the LED light emitting element and / or the liquid crystal display element.
This is an invention of a reception sensitivity display method corresponding to the third feature of the opening / closing body device.

A fourth feature of the reception sensitivity display method according to the present invention is the reception sensitivity display method according to the first feature, wherein the reception sensitivity display method is provided in an operation means for outputting an operation signal relating to the opening and closing to the opening / closing body means. The level of the detection signal is visibly displayed using an LED light emitting element and / or a liquid crystal display element.
This is an invention of a reception sensitivity display method corresponding to the fourth feature of the opening / closing body device.

According to a fifth aspect of the reception sensitivity display method of the present invention, in the reception sensitivity display method according to the second, third, or fourth feature, the LED light-emitting element corresponds to the level of the detection signal. By changing the lighting or blinking state, the level of the detection signal is visibly displayed.
This is an invention of a reception sensitivity display method corresponding to the fifth feature of the open / close device.

A sixth feature of the reception sensitivity display method according to the present invention is the reception sensitivity display method according to the fifth feature, wherein the LED light emitting element is turned on or blinked, the number of times of lighting or blinking, lighting or blinking. And / or changing the light emission intensity during lighting or blinking.
This is an invention of a reception sensitivity display method corresponding to the sixth feature of the opening / closing device.

A seventh feature of the reception sensitivity display method according to the present invention is the reception sensitivity display method according to any one of the first to sixth features, wherein an interference radio wave signal having a different frequency band as the detection signal is received. In the case of reception by the radio wave system, information on the date and time of reception is displayed.
This is an invention of a reception sensitivity display method corresponding to the seventh feature of the opening / closing device.

  According to the opening / closing body device of the present invention, since the reception state of the obstacle detection signal can be easily seen, the reliability of the obstacle detection signal transmitted by the radio wave radio system can be improved, and the malfunction is detected. There is an effect that a factor can be eliminated and prompt action can be taken.

It is a figure which shows schematic structure of the shutter apparatus which concerns on this invention. It is a flowchart figure which shows an example of the radio wave monitoring process which the radio wave monitoring control part and opening-closing body control apparatus of FIG. 1 perform. It is a perspective view which shows the outline | summary of the inside of a building provided with the shutter apparatus which concerns on embodiment of this invention. It is a figure which shows the time chart of operation specification according to reception sensitivity, and reception sensitivity display. FIG. 5 is a flowchart showing an example of reception sensitivity determination processing corresponding to the operation specification and time chart of FIG. 4 executed by a detection signal receiver. It is a figure which shows the modification of this embodiment.

  Preferred embodiments of an opening / closing body device according to the present invention will be described below with reference to the accompanying drawings. In this embodiment, a shutter device that is controlled to be opened and closed (lifted up and down) as an opening and closing body will be described as an example. The closing direction of the opening / closing body may be not only closing by normal lowering but also closing by raising. In the present embodiment, a case where the downward descent from the upper side is the closing direction will be described as an example.

  FIG. 1 is a diagram showing a schematic configuration of a shutter device according to the present invention. This shutter device is provided in an opening of a building, and basically, a shutter case 11, a shutter curtain 12, guide rails 13 and 14, a motor 15, a shutter drive circuit 16, an opening / closing body control device 17, an operation signal reception. Machine 18, detection signal receiver 20, radio wave monitoring controller 22, remote control switch 30, obstacle detector 40, and the like. Other winding shafts and chains are not shown.

  The guide rails 13 and 14 are provided on both ends of the opening of the building so as to contact both ends of the shutter curtain 12, and the cross-sectional shape spanned from the lintel to the floor surface is a U-shaped guide groove. It is comprised with the metal member which has. The shutter curtain 12 moves up and down along the guide grooves of the guide rails 13 and 14, and opens and closes the opening. A winding shaft (not shown) is rotatably provided at both end sides of the shutter case 11 located above the opening, and winds up or rewinds the shutter curtain 12. A chain (not shown) connects a main sprocket provided on the rotating shaft of the motor 15 and a driven sprocket provided on the rotating shaft of the winding shaft. Therefore, the rotational driving force of the motor 15 is transmitted to the winding shaft side through the chain, and when the motor 15 rotates, the winding shaft rotates through the chain so that the opening / closing operation of the shutter curtain 12 is controlled. It has become.

  The shutter drive circuit 16 is constituted by a microcomputer and is supplied with power via a power line (not shown). The shutter drive circuit 16 controls the rotation of the motor 15 based on a control signal from the opening / closing body control device 17. The opening / closing body control device 17 receives an operation signal receiver 18 including a remote control antenna 19 for receiving a control signal from the remote control operation switch 30, that is, a control radio signal, and a detection signal from the obstacle detector 40, that is, a detection radio signal. A detection signal connected to a detection signal receiver 20 having a detection antenna 21 for receiving, a control signal corresponding to the operation state of each operation button of the remote control operation switch 30, and a detection signal indicating the detection state of the obstacle detector 40 Is output to the shutter drive circuit 16.

  The remote control operation switch 30 is a wireless-type operator dedicated to the shutter device having an open button, a stop button, and a close button. The operation switch may be a wired operator provided on a wall surface or the like. The obstacle detector 40 is provided on the seat plate portion of the shutter curtain 12, and oscillates (transmits) an electromagnetic wave detection signal when an obstacle is detected.

  The detection signal receiver 20 receives the electromagnetic wave detection signal from the obstacle detector 40 via the detection antenna 21, and outputs the detection signal to the opening / closing body control device 17 in response to the detection signal, and the shutter drive circuit 16. To control the rotation of the motor 15, that is, the control when the shutter curtain 12 is raised and lowered. Further, the detection signal receiver 20 includes a level display device 23. The level display device 23 is composed of an LED light emitting element or the like, and as an example, displays the reception sensitivity level of a signal emitted from the obstacle detector 40 by the number of LED issuances. Details of the level display device 23 will be described later.

  The radio wave monitoring control unit 22 captures signals input to the operation signal receiver 18 and the detection signal receiver 20 as needed, and prevents malfunctions using an encryption code signal included in the signals. In addition, the radio wave monitoring control unit 22 receives a unique code signal for determining a transmitter such as the remote control operation switch 30 and the obstacle detector 40 and a code signal corresponding to the operation of the shutter curtain. The certainty of operation is guaranteed and the malfunction is prevented. However, since radio waves are used as a carrier medium for operation signals and detection signals, accidental malfunctions may occur due to various radio waves flying in the surrounding space of the shutter device, for example, strong electromagnetic waves such as illegal radio and arc welding. There is a risk that.

  That is, the radio wave monitoring controller 22 determines whether the signals input to the operation signal receiver 18 and the detection signal receiver 20 are appropriate signals from the remote control operation switch 30 and the obstacle detector 40 or other abnormal signals (interferences). If an abnormal signal (disturbing radio signal) is received, an abnormal environment is detected by applying a buzzer sound, displaying a lamp, wording, etc., and restricting the operation. The shutter is not normally operated in the state. The jamming wave here is a signal in the same frequency band as the detection signal transmitted from the obstacle detector 40, but does not have a unique code signal. This is because it is difficult to receive a detection signal when an appropriate detection signal is transmitted while receiving such an interference radio wave.

  FIG. 2 is a flowchart showing an example of radio wave monitoring processing executed by the radio wave monitoring controller 22 and the opening / closing body control device 17 in FIG. Hereinafter, an example of the operation of the radio wave monitoring control unit 22 and the opening / closing body control device 17 will be described using this flowchart.

  In step S20, it is determined whether or not the radio wave received via the detection antenna 21 shown in FIG. 1 is an interfering radio signal. If the radio wave signal is not an interfering radio signal (no), the process proceeds to step S21 and the interfering radio signal is transmitted. If (yes), the process proceeds to step S23. Here, the determination as to whether or not the signal is a jamming radio wave is that the radio wave received via the detection antenna 21 exceeds a predetermined specified value (code deciding level), and that the obstacle detector 40 It is the same as the transmission frequency band, and further, it is determined whether or not it matches the unique code for transmitter identification. If all these conditions are met, it is determined that there is no interfering radio wave signal, and at least one of these If one of the conditions is not satisfied, it is determined that the signal is a jamming signal.

In step S21, the abnormal environment flag is reset because it is determined that the radio wave received in the previous step S20 is not a jamming radio wave signal but a legitimate signal. This abnormal environment flag indicates that the radio wave being received via the detection antenna 21 is an interfering radio wave signal and is in an abnormal environment state.
In step S22, since it is not currently in an abnormal environment state, a normal state in which each operation of opening / closing of the opening / closing body corresponding to the operation of the remote control operation switch 30 and its own weight closing (descent) operation at the time of disaster prevention signal input can be performed. . The opening / closing body device in the normal state is in an effective state in which the operation of the automatic closing device that is lowered by its own weight when the operation of the opening / closing operation or the disaster prevention signal is input electrically by using the remote control operation switch 30 is effective.

In step S23, since it is determined that the radio wave being received via the detection antenna 21 is an interfering radio wave signal, it is determined whether or not the current operation state of the shutter curtain 12 is stopped. ), The process proceeds to step S24, and if the elevator is not stopped, the process proceeds to step S31.
In step S24, in order to indicate that a jamming wave is currently being received, a visual and / or audible abnormal environment is notified and the push-off operation is enabled. That is, although the jamming wave is being received, when the operation is performed with the remote control operation switch 30, the closing operation is enabled by pressing the operation button. This is because the operator of the remote control operation switch 30 can operate the remote control switch 30 near the shutter curtain 12 while confirming safety.

  The push-off operation is an operation corresponding to the operation button only when the operation button is pressed. If the control unit can recognize that the radio wave and its contents are normal by operating with the remote control operation switch 30 while the jamming radio wave is being received, the push-off operation is performed. In the state of receiving the jamming radio wave, the operation of the remote control operation switch 30 may not be normally transmitted to the control unit. Therefore, in order to perform the push-off operation more reliably, it is equivalent to the remote control operation switch 30. It is preferable to provide a switch having an instruction function and transmit it to the control unit by wire.

In step S25, it is determined whether or not a disaster prevention signal has been input. If it has been input (yes), the process proceeds to step S26, and if not (no), the process returns.
In step S26, the disaster prevention signal is input during the reception of the jamming radio wave signal, but the weight is not immediately lowered. That is, when the radio wave being received via the detection antenna 21 is a jamming radio wave, it is difficult to receive the obstacle signal even if the obstacle detector 40 transmits the detection signal. In addition, you may make it carry out weight fall immediately prioritizing closure.

In step S27, it is determined whether or not the reception state of the jamming signal is continued. If it is continued (yes), the process proceeds to step S28, and if not, the process proceeds to step S38.
In step S28, it is determined whether or not a predetermined time T1 has elapsed since the reception of the jamming radio wave via the detection antenna 21. If yes (YES), the process proceeds to step S29. If not (no), the process returns to step S26 so that the weight cannot be lowered until the predetermined time T1 has elapsed. Here, the predetermined time T1 is, for example, 30 seconds.

In step S29, since a predetermined time T1 has elapsed since the state in which the jamming signal is received via the detection antenna 21, for example, a descent operation for 5 seconds is performed and a stop operation for 10 seconds is performed. A descent process is performed in which the shutter curtain 12 is safely lowered and the opening is closed while repeating the descent operation and the stop operation, such as performing a descent operation for 5 seconds.
In step S30, "1" is set in the abnormal environment flag, indicating that the current environment is abnormal, and recording the information of the date and time when the jamming signal was received, and the process returns. In this date / time information, it is preferable to record the date / time at which the reception of the jamming signal was started and / or the date / time at which it was terminated.

In step S31, since it is determined that the shutter is not stopped in the previous step S23, it is determined whether or not the shutter is being lowered. If the shutter is being lowered (yes), the process proceeds to step S32, and if it is not rising (no). In this case, even if no detection signal is input from the obstacle detector 40, there is no effect on the ascending operation, and the process returns here without any processing.
In step S32, it is determined whether or not “1” is set in the abnormal environment flag. If the flag is set (yes), the abnormal environment flag is set in the process of step S30 described above or step S37 described later. This means that the descent process is being performed in an abnormal environment state, so the process immediately returns, and if it is not set (no), the process proceeds to step S33.

In step S33, since it is determined that the abnormal environment flag is not set, the detection antenna 21 is turned on during a normal closing (descent) operation by operating the remote control operation switch 30 or during a weight drop by inputting a disaster prevention signal. This means that the interfering radio wave signal has been received via the terminal, so that the closing (descent) operation is temporarily stopped.
In step S34, it is determined whether or not the reception state of the jamming signal is continued. If it is continued (yes), the process proceeds to step S35, and if not, the process proceeds to step S38.

  In step S35, it is determined whether or not a predetermined time T2 has elapsed since the jamming signal is received via the detection antenna 21, and if it has elapsed (yes), the process proceeds to step S36. If not (no), the process returns to step S33, and the closing (lowering) operation is stopped until a predetermined time T1 has elapsed. Here, the predetermined time T2 may be the same as the above-mentioned predetermined time T1, for example, 30 seconds, or may be a value smaller than the predetermined time T1, for example, 10 to 20 seconds because the closing (descent) operation is being performed.

In step S36, since the predetermined time T2 has elapsed since the jamming signal is received via the detection antenna 21, for example, a descent operation is performed for 5 seconds, and a stop operation is performed for 10 seconds. A descent process is performed in which the shutter curtain 12 is safely lowered and the opening is closed while repeating the descent operation and the stop operation, such as performing a descent operation for 5 seconds.
In step S37, "1" is set in the abnormal environment flag, indicating that the current environment is abnormal, and recording the information of the date and time when the jamming signal was received, and the process returns. In this date / time information, it is preferable to record the date / time at which the reception of the jamming signal was started and / or the date / time at which it was terminated.

  In step S38, the fact that it has been determined in step S27 that the reception state of the jamming radio wave signal has not continued means that the dead weight lowering process could not be started in response to the input of the disaster prevention signal. As soon as the signal disappears, the process for resuming its own weight lowering operation is performed, and it is determined in step S34 that the reception state of the jamming radio wave signal has not been continued. This means that the lowering operation is temporarily stopped during the closing (descent) operation. This means that the process for resuming the closing (descent) operation is performed as soon as the interfering radio wave signal disappears. It should be noted that the stoppage determination in step S23 does not include the stop operations in step S29 and step S36.

  FIG. 3 is a perspective view showing an outline of the interior of a building provided with the shutter device according to the embodiment of the present invention. In FIG. 3, the fire door 50 for forming a fire prevention compartment is provided along with the shutter apparatus of FIG. The fire door 50 is provided with a submerged door that can be passed for evacuation or the like. In this embodiment, a level display device 23 for displaying the reception sensitivity level from the detection signal receiver 20 is attached to the upper side surface (front surface in the figure) of the fire door 50. In general, the detection signal receiver 20 is housed in a wall surface or in a shutter case 11 around which the shutter curtain 12 is wound. In this embodiment, the level display device 23 is attached to the upper wall surface of the fire door 50. Therefore, it is possible to visually check at all times. The level display device 23 may be provided on the back surface (rear surface in the figure) of the fire door 50.

  Further, the warning light 60 is attached to the upper ceiling surface, and operates when the shutter curtain 12 is raised and lowered to notify that it is operating. In general, the warning light 60 warns that the red light rotates when the shutter curtain 12 moves up and down. Therefore, in this embodiment, a level display device 61 that displays the reception sensitivity level from the detection signal receiver 20 is provided on the side surface of the warning light 60. When the level display device 61 is provided on the side surface of the warning light 60, the level display device 23 is provided in the same wall surface as the detection signal receiver 20 or in the shutter case 11 so that it can be seen during construction or maintenance. May be. Since the warning light 60 is generally installed in combination with the shutter curtain 12, it can be easily realized without the need to separately attach the level display device 23 to the wall surface or the side surface of the fire door.

FIG. 4 is a diagram showing an operation specification for each reception sensitivity and a time chart for reception sensitivity display.
In this operation specification for each reception sensitivity, an example of the reception sensitivity level of the signal emitted from the obstacle detector 40 is shown on the horizontal axis. When the reception sensitivity level is −70 [dBm] or higher, the detection signal receiver 20 determines that the sensitivity is “high” that is optimal for practical use, and accordingly, the LED of the level display device 23 is lit continuously three times. . The detection signal receiver 20 has a practical problem when the reception sensitivity level is in the range of −70 [dBm] to −85 [dBm] (smaller than −70 [dBm] and larger than −85 [dBm]). It is determined that there is no sensitivity, and the LED of the level display device 23 is continuously lit twice. When the reception sensitivity level is −85 [dBm] or less, the detection signal receiver 20 determines that the sensitivity is “weak”, which is a practical problem, and turns on the LED of the level display device 23 only once.

  In FIG. 4, the reception sensitivity display time chart shows the above-described LED lighting timing. As shown in this time chart, the detection signal receiver 20 measures the reception sensitivity level in response to ON / OFF of the signal emitted from the obstacle detector 40. This signal is transmitted about 10 times in a short time, and in the figure, the signal first detected by the detection signal receiver 20 is displayed. As a result of the measurement, if the sensitivity is determined to be “strong” as described above, the LED blinks three times repeatedly at intervals of 0.2 seconds, and if the sensitivity is determined to be “medium”, the LED is also set to 0. When blinking twice at 2-second intervals and determining that the sensitivity is “weak”, the LED is lit once for 0.2 seconds. The lighting and extinguishing times are merely examples, and can be set arbitrarily. For example, when the sensitivity is “strong”, “medium”, and “weak”, the entire blinking time is made equal, and when the sensitivity is “strong”, it is blinked three times in one second. Alternatively, it may be blinked twice in one second, and if it is “weak”, it may continue to light for one second. Further, the blinking process may be executed not only once but a plurality of times at predetermined intervals.

FIG. 5 is a flowchart showing an example of reception sensitivity determination processing corresponding to the operation specification and time chart for each reception sensitivity of FIG. 4 executed by the detection signal receiver.
In step S50, it is determined whether or not the reception sensitivity level from the obstacle detector 40 is −70 dBm or more. If yes, the process proceeds to step S51. If no, the process jumps to step S52.
In step S51, since it was determined in the previous step S50 that the reception sensitivity level is −70 [dBm] or higher, the level display device 23 is set to 3 to notify that the sensitivity is “strong” optimum for practical use. Flash once.

In step S52, it is determined whether or not the reception sensitivity level is in a range of −70 [dBm] to −85 [dBm] (smaller than −70 [dBm] and larger than −85 [dBm]). Advances to step S53, and if no, jumps to step S54.
In step S53, since it was determined in the previous step S52 that the reception sensitivity level is within the predetermined range, the level display device 23 is operated twice in order to notify that the sensitivity is “medium” without any practical problem. Blink.

In step S54, it is determined whether or not the reception sensitivity level is −85 [dBm] or less. If yes, the process proceeds to step S55, and if no, the process returns.
In step S55, since it was determined in the previous step S54 that the reception sensitivity level is within the predetermined range, the level display device 23 is turned on once to notify that the sensitivity is “weak” which is a practical problem. Just blink.

  According to this embodiment, even if the received signal level changes due to a change in the surrounding environment where the shutter curtain is installed, the reception sensitivity level of the radio signal can be easily confirmed by the number of blinks of the level display device 23. . As a result, malfunction of the shutter curtain can be prevented in advance.

  FIG. 6 is a diagram showing a modification of this embodiment. In the above-described embodiment, the case where the LED light emitting element is used as the level display device 23 and the reception sensitivity level is simply displayed by the number of blinks has been described. However, as shown in FIG. A signal reception sensitivity display unit 30d constituted by a liquid crystal panel may be provided as the level display device 23 below the stop switches 30a, 30b, and 30c. The signal reception sensitivity display section 30d displays the reception sensitivity levels “strong”, “medium”, and “weak” in the size of a triangular horizontal bar on the liquid crystal panel. In addition to the liquid crystal display, for example, as the level display device 23, multicolor LEDs such as red, green, and blue may be used. You may display using the antenna mark and WiFi mark which are used with the smart phone etc. By providing the signal reception sensitivity display unit 30d in the remote control operation switch 30 in this way, the sensitivity state can be easily confirmed at hand, so that it is extremely easy to see and the malfunction prevention can be dealt with promptly. Such a liquid crystal panel can also be applied as a level display device 23 provided integrally with the detection signal receiver 20. Further, a liquid crystal panel may be provided on the upper side surface of the fire door 50.

  In the above-described embodiment, the shutter curtain that is extended by the up-and-down lifting method has been described as an example, but the same applies even if the shutter-like opening and closing member is extended by the horizontal pulling method or by the horizontal method. Can be applied to. Moreover, as an opening / closing body apparatus, it is applicable also to a shutter apparatus, a window shutter apparatus, a blind apparatus, a roll screen apparatus, a hanging curtain apparatus, a sliding door apparatus, a moving partition apparatus, an awning apparatus, a waterproof board apparatus etc., for example.

DESCRIPTION OF SYMBOLS 11 ... Shutter case 12 ... Shutter curtain 13, 14 ... Guide rail 15 ... Motor 16 ... Shutter drive circuit 17 ... Opening / closing body control device 18 ... Operation signal receiver 19 ... Remote control antenna 20 ... Detection signal receiver 21 ... Detection antenna 22 ... Radio wave monitoring control unit 23 ... Level display device 30 ... Remote control switch 30d ... Signal reception sensitivity display unit 40 ... Obstacle detector 50 ... Emergency exit door 60 ... Warning light 61 ... Level display device

Claims (14)

Opening and closing body means for opening and closing the opening;
Obstacle detection means provided at the closed end of the opening / closing body means, for transmitting a detection signal by radio wave method when detecting an obstacle,
Detection signal receiving means for receiving the detection signal from the obstacle detection means;
An opening / closing body device comprising: level display means for displaying the level of the detection signal received from the obstacle detection means so as to be visible. The opening / closing body device according to claim 1,
The opening / closing body device, wherein the level display means includes an LED light emitting element and / or a liquid crystal display element provided in the detection signal receiving means. The opening / closing body device according to claim 1,
The level display means comprises an LED light emitting element and / or a liquid crystal display element provided in at least one place on a wall surface around the opening, a warning light, and a side surface of the fire door. The opening / closing body device according to claim 1,
The level display means comprises an LED light emitting element and / or a liquid crystal display element provided in an operation means for outputting an operation signal relating to the opening and closing to the opening / closing means. In the opening-closing body apparatus of Claim 2, 3 or 4,
The level display means displays the level of the detection signal in a visually recognizable manner by changing a lighting or blinking state of the LED light emitting element in accordance with the level of the detection signal. apparatus. The opening / closing body device according to claim 5,
An opening / closing body device characterized by changing the number of times of lighting or flashing, the time of lighting or flashing, and / or the light emission intensity at the time of lighting or flashing as the lighting or flashing state of the LED light emitting element. The opening / closing body device according to any one of claims 1 to 6,
An opening / closing device comprising: display means for displaying information on the date and time of reception when an interfering radio wave signal having a different frequency band as the detection signal is received by the radio wave radio system.   Received from the obstacle detection means when the detection signal is transmitted to the detection signal reception means by radio wave from the obstacle detection means provided at the closing end of the opening / closing body means for opening and closing the opening. A reception sensitivity display method for displaying the level of the detected signal so as to be visible. The reception sensitivity display method according to claim 8,
A reception sensitivity display method, wherein the level of the detection signal is visibly displayed using an LED light emitting element and / or a liquid crystal display element provided in the detection signal receiving means. The reception sensitivity display method according to claim 8,
The level of the detection signal is visibly displayed using an LED light emitting element and / or a liquid crystal display element provided at least at one place on the wall surface around the opening, the warning light, and the side surface of the fire door. Reception sensitivity display method. The reception sensitivity display method according to claim 8,
Receiving characterized in that the level of the detection signal is visibly displayed using an LED light emitting element and / or a liquid crystal display element provided in an operating means for outputting an operating signal relating to the opening and closing to the opening / closing body means. Sensitivity display method. The reception sensitivity display method according to claim 9, 10 or 11,
A reception sensitivity display method, wherein the level of the detection signal is displayed in a visually recognizable manner by changing a lighting or blinking state of the LED light emitting element corresponding to the level of the detection signal. The reception sensitivity display method according to claim 12,
A reception sensitivity display method characterized by changing the number of times of lighting or blinking, the time of lighting or blinking, and / or the light emission intensity at the time of lighting or blinking as the state of lighting or blinking of the LED light emitting element. The reception sensitivity display method according to any one of claims 8 to 13,
A reception sensitivity display method, comprising: displaying information related to a received date and time when an interfering radio wave signal having a different frequency band as the detection signal is received by the radio wave radio system.

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