JP7353641B2 - Door opening/closing control system - Google Patents

Description

The present invention relates to, for example, a door opening/closing control system for opening and closing automatic doors.

Conventionally, when a part of the human body touches or comes close to a touch switch installed on an automatic door or other door (including those installed around the door), a touch signal is sent from the touch switch. A door opening/closing control system that opens a door by opening the door is known. Touch switches are often used in high-traffic areas to open the door only to those who intend to pass through it, and to open the door to those who do not intend to pass through the door. It is used for the purpose of preventing malfunction.

Note that in such a door opening/closing control system, a timer or the like is used to measure the time after the door is opened, and the door is closed after a certain period of time has elapsed. In this case, a person who cannot pass through the door within the certain period of time may be trapped by the door. Therefore, a door opening/closing control system is known that separately includes a so-called safety sensor that detects an object such as a person on the opening/closing trajectory of the door and closes the door after the object has passed. This safety sensor allows the door to close after no one is in the door's opening/closing trajectory. In addition to this safety sensor, even if an area sensor is used that detects surrounding objects, including those in the immediate vicinity of the door, based on detection waves such as infrared rays from the objects, even if the above-mentioned certain period of time has elapsed, Since the door can be closed by detecting that the person passing through the door has completed the passage, it is possible to ensure safety not only on the opening/closing track but also around the door. AIR sensors [Active Infra-Red Sensors] are mainly used as safety sensors and area sensors. Note that instead of the AIR sensor, a sensor whose detection principle is a hot wire type, ultrasonic type, MW type, or image type may be used.

While touch switches are used for the above purposes, people who use wheelchairs, use strollers or trolleys, or whose hands are occupied due to luggage or children may find it difficult to press the touch switch and open the door. It has been pointed out that there is. Furthermore, if a visually impaired person cannot find the touch switch, or if a foreigner or the like does not know how to use the touch switch, it may be difficult to open the door. On the other hand, Patent Document 1 discloses an automatic door device that uses an area sensor to open a door when an object is detected within its detection range.

It has also been pointed out that touch switches can suffer from malfunctions due to component deterioration or mechanical wear, making it impossible to open the door. In addition, with wireless touch switches, problems may occur due to external noise, dead batteries, etc., and it may become impossible to open the door. On the other hand, Patent Document 2 discloses an automatic door that opens the door using an optical sensor such as an area sensor when a malfunction of a sensor such as a touch switch is detected.

Patent No. 3779644 Japanese Patent Application Publication No. 2017-014719

However, the automatic door device disclosed in Patent Document 1 only discloses safety when the door closes, and does not disclose under what conditions the door is opened. Further, Patent Document 2 also does not disclose anything about the conditions under which the door is opened. In order to open the door only to those who intend to pass through the door in a busy place as mentioned above, it is also necessary to open the door unnecessarily to those who have no intention of passing through the door. In order to prevent malfunctions that may occur, the conditions under which the door is opened are important.

SUMMARY OF THE INVENTION Therefore, the present invention solves the above-mentioned drawbacks of the prior art and provides a door opening/closing control system that can open the door without using a touch switch. The purpose is to provide a control system.

As a result of various studies, the present inventors have found that the above object can be achieved by the following present invention.

The door opening/closing control system according to the present invention includes:
a touch switch provided on the door and transmitting a touch signal upon contact or proximity of a part of the human body;
an area sensor forming a detection area that detects objects around the door based on detection waves from the objects;
a receiver that receives a touch signal from the touch switch and outputs a door opening control signal;
activating means for opening the door when receiving the door opening control signal;
A door opening/closing control system comprising:
When the area sensor continues to detect the object in an area near the door in the detection area when the door is in a closed state, the area sensor outputs the door open control signal when Outputs the output command of
The receiver also outputs the door opening control signal when receiving the output command.

According to this configuration, in the door opening/closing control system, when the door is in a closed state, the area sensor detects the object in a nearby area near the door in the detection area for at least a predetermined period that is a normal length. If the detection continues, the receiver outputs a command to output the door open control signal, and the receiver outputs the door open control signal even if the receiver receives the output command. Therefore, the above-mentioned drawbacks of the prior art can be solved, the door can be opened without using the touch switch, and in addition, the door can be opened even when the touch switch is malfunctioning. For example, if the touch switch is difficult to press and the door is difficult to open, if you do not know how to use the touch switch, or if the touch switch itself has a problem due to component deterioration or mechanical wear, etc. Malfunctions may occur due to the movement of people who have no intention of passing through the door at a distance, or objects that momentarily pass near the door, such as newspapers blown by the wind or passersby who cross the door. The door can be opened without pressing a touch switch while reducing the number of operations, that is, reducing the possibility of inadvertent opening of the door.

In the above configuration, when the area sensor detects the target object in the nearby area without detecting it in a distant area other than the nearby area from a non-detection state, the area sensor may take the predetermined time longer than the normal length. It is preferable to do so. This can further reduce the possibility that the door will be inadvertently opened without pressing the touch switch due to a cross-intruder who suddenly passes near the door.

In the above configuration,
The area sensor is
The area sensor frequency is the output frequency of the door opening control signal based on the output command output from the area sensor within a predetermined period, and the door is based on the touch signal sent from the touch switch within the predetermined period. Calculate the touch switch frequency, which is the output frequency of the open control signal,
If the area sensor frequency is higher than the touch switch frequency, the normal length of the predetermined time is shortened;
When the area sensor frequency is lower than the touch switch frequency, it is preferable to return the normal length of the predetermined time to a standard value.
This can reduce the possibility that the comfort of using the door will be impaired for visually impaired people, wheelchair users, stroller and trolley users, and the like.

In the above configuration, it is preferable that the area sensor is provided around the door including a corner of the door and a ceiling. As a result, the area sensor can detect objects both near and far, and the installation location does not become an obstacle.

In the above configuration,
The touch switch may be a mechanical switch that sends the touch signal upon contact with the part of the human body, or may detect the part of the human body in a touch detection area near the touch switch to detect the proximity of the part of the human body. It is preferable that the touch signal is an optical sensor that sends out the touch signal according to the method. This makes it possible to open the door not only by contact but also by non-contact.

The door opening/closing control system according to the present invention solves the above-mentioned drawbacks of the prior art and can open the door without using a touch switch, and can also open the door even when the touch switch is malfunctioning.

1 is a schematic side view of a door opening/closing control system according to an embodiment of the present invention. It is a conceptual block diagram of the control part of the door opening/closing control system. FIG. 3 is a plan view for explaining a cross-cutting mode of the door opening/closing control system. It is a normal output waveform diagram from the area sensor of the same door opening/closing control system. FIG. 2 is an output waveform diagram from an area sensor of the same door opening/closing control system at the time of crossing. It is a figure explaining touch switch frequency and area sensor frequency of the same door opening/closing control system. It is a figure explaining touch switch frequency and area sensor frequency of the same door opening/closing control system. It is a flow diagram for explaining the operation of the same door opening/closing control system.

Embodiments of the present invention will be described below based on the drawings. Note that the same reference numerals in each figure indicate the same or corresponding parts, and unless there is a special explanation of changes, the explanation will be omitted as appropriate.

<Basic configuration and basic operation of the door opening/closing control system>
FIG. 1 shows a schematic side view of a door opening/closing control system 1 that opens and closes a door 500 according to an embodiment of the present invention. The door opening/closing control system 1 of this embodiment performs door opening/closing control such as opening an automatic door. That is, in the present embodiment, the door 500 is a sliding double-opening or single-opening automatic door, and is suspended and supported by a door 400 that is a horizontal member such as a threshold or a lintel. The door opening/closing control system 1 according to the present embodiment can be applied, for example, to door opening/closing control such as opening an automatic door as described above, but is not limited to this automatic door. It can also be applied to lock/unlock control that performs unlocking, etc.

The door 500 is equipped with a touch switch 210 that sends out a touch signal TS (FIG. 2) when a part of the human body comes into contact with or approaches the door 500, as shown in FIG. On the main surface of the door, it is provided near the edge that faces the passageway when the door is opened. By sending out the touch signal TS from the touch switch 210, the door 500 of the automatic door is opened as described later (this door opening is referred to as "touch switch door opening"). Therefore, a person who intends to pass through the automatic door presses the touch switch 210.

The touch switch 210 of this embodiment is a mechanical switch that sends out a touch signal TS in response to contact with a part of the human body. Note that the touch switch 210 may be an optical sensor that detects a part of the human body in a touch detection area near the touch switch and sends out a touch signal TS due to the proximity of the part of the human body. In this case, it becomes possible to open the door not only by contact but also by non-contact.

In the same figure, an area sensor 300 is further provided in the blind 400 of the door 500. The area sensor 300 forms a detection area that detects objects around the door 500 based on detection waves from the objects. In this embodiment, the area sensor 300 is, for example, an AIR sensor [Active Infra-Red Sensor: active infrared sensor], and in the detection areas D1 to D6 in the same figure, the infrared rays contained in the detection waves from the target object 600 are detected. , and the object 600 around the door 500 is detected. In this embodiment, the target object 600 is a human body, and includes, for example, a visually impaired person, a wheelchair user, a stroller or trolley user, or a person whose hands are occupied due to luggage, children, etc.

The detection areas D1 to D6 are areas in a column direction parallel to the lower edge of the door 500, and are arranged adjacent to each other. Detection area D1 is located closest to door 500, detection areas D2 to D5 move away from door 500 in this order, and detection area D6 is the detection area furthest from door 500. In this way, the area sensor 300 can detect the object 600 at least in the column direction parallel to the lower edge of the door 500. That is, the area sensor 300 is capable of detecting at least the distance of the object 600 from the door 500. In this case, the area sensor 300 can detect the movement MV (approaching direction and receding direction) of the object 600 with respect to the door 500.

Hereinafter, among the detection areas D1 to D6, the detection areas D1 and D2 near the door 500 will be referred to as nearby areas. Further, detection areas D3 to D6 other than the detection areas D1 and D2 near the door 500 are referred to as far areas. Note that the boundary between the nearby area and the far area is not limited to between the detection areas D2 and D3, and can be changed. In the figure, the detection range in which detection waves (infrared rays) from objects can be detected in detection areas D1 and D2, which are nearby areas, and the detection waves (infrared rays) from objects in detection areas D3 to D6, which are distant areas, are shown. The detection range where it can be detected is indicated by separate hatching. Here, in the present embodiment, each of the column-shaped detection areas D1 to D6 is capable of detecting an object in the lateral direction with respect to the door 500 (or in the row direction perpendicular to the column direction), as shown in FIG. A plurality of spot-shaped individual detection areas DA are included. This can be realized, for example, by the area sensor 300 being configured with an 8×6 matrix of infrared sensing elements (sensors).

As shown in FIG. 2, the touch signal TS, which is a wireless signal, is sent from the touch switch 210 to a receiver 200, which is a so-called touch switch sensor. Upon receiving the touch signal TS, the receiver 200 outputs a door opening control signal DS to the door controller 100. The door controller 100, which is a starting means, opens the door 500 upon receiving the door opening control signal DS. Specifically, upon receiving the door opening control signal DS, the door controller 100 outputs an opening drive command for driving the motor to open the door 500 of the automatic door to the opening/closing drive section DD, which includes a motor that drives the door 500 to open and close. This causes the door 500 to be opened. As described above, when a person who intends to pass through the automatic door presses the touch switch 210, the automatic door 500 is opened. Note that the activation means may include the opening/closing drive unit DD that drives the door 500 to open and close.

The touch switch sensor 200 measures time using a timer or the like after the door is opened, and when a certain period of time such as an output holding time, which is usually a short time such as 0.5 seconds, has elapsed, the touch switch sensor 200 notifies the door controller 100 of this fact, and the door is opened. The controller 100 closes the door 500 by outputting a closing drive command to the opening/closing drive section DD (note that the controller 100 may set the opening time of the door 500 using a so-called opening timer). . At this time, in this embodiment, an area sensor 300, which will be described later, is used to detect an object 600 such as a person on the opening/closing trajectory of the door 500 and around the door, and to change the closing operation of the door 500 to an opening operation. , to prevent the object 600 from being caught in the door 500. Note that the area sensor 300 forms a detection area on the opening/closing track (not shown in FIG. 1) in order to ensure safety on the opening/closing track. Since this area sensor 300 is used in combination with the touch switch sensor 200 in this embodiment, it will also be referred to as a combination sensor 300 below.

<Combination sensor door opening conditions>
The combination sensor 300 of this embodiment detects the object 600 in the detection areas D1 and D2, which are nearby areas among the detection areas D1 to D6, for at least a predetermined period of time, which is a normal length, when the door 500 is in a closed state. (hereinafter also referred to as "combined sensor door opening condition"), the output command OC of the door opening control signal DS is output. The normal length refers to, for example, at least the length of time it takes for an ordinary person, such as a healthy person, to press the touch switch after being detected in the vicinity area near the door, or longer. In other words, the normal length is the minimum value that makes it difficult for the combined sensor 300 to open the door 500 inadvertently (this door opening is referred to as "combined sensor door opening") when the combined sensor door opening condition is satisfied, for example. There is. Note that the normal length is set to an initial value at the time of shipment, and is, for example, 2 seconds. Here, "a predetermined time that is at least the normal length" means that the predetermined time is, in principle, the normal length, but the predetermined time may be changed from the normal length, for example, in the cross-cutting countermeasure mode described later. There is.

In this configuration, the receiver 200 outputs the door opening control signal DS even when receiving the output command OC. That is, if the combined sensor 300 continues to detect the object 600 in the nearby area for more than the predetermined period of time, the receiver 200 detects the object 600 from the combined sensor 300 even if it does not receive the touch signal TS from the touch switch 210. Upon receiving the output command OC, the door opening control signal DS is output to the door controller 100. With this configuration, in situations where it is difficult to press the touch switch and open the door, in situations where you do not know how to use the touch switch, or in cases where the touch switch itself has a malfunction due to component deterioration or mechanical wear, etc. Doors outside the area Malfunctions caused by the movement of people who have no intention of passing through the door at a distance, or objects that momentarily pass near the door, such as flying objects such as newspapers blown by the wind or passersby who cross the door. The door 500 can be opened without pressing the touch switch 210, while reducing malfunctions due to erroneous operation, that is, while reducing inadvertent opening of the door. In this case, since it is also possible to open the door 500 using the touch switch 210 (the touch switch door opening), the door 500 can be opened by pressing the touch switch 210 without waiting for the door 500 to be opened by the combined sensor door opening. is also possible.

Note that the door controller 100, receiver 200, and combined sensor 300 may be connected in a relay communication type in a cascade as shown in the conceptual block diagram of FIG. 2, but they may not be connected in a bus communication type. It's okay. For example, CAN (Controller Area Network) communication can be used as the bus communication. In CAN communication, a node ID is assigned to each device connected on the CAN bus. When CAN communication is used, for example, the door controller 100 is used as a bus master, and the receiver 200, combined sensor 300, etc. are used as slaves (slave devices). The door controller 100 of the bus master sets the output device for outputting the safety detection signal when closing the door and the output device for the door opening start signal when opening the door, the normal length of the predetermined time described below, and the slave device. The node ID, etc. of the node are managed. This configuration has the advantage of allowing settings to be made from a terminal device such as a smartphone instead of the previous settings using a DIP (Dual In-line Package) switch, improving the amount of information transmitted, enabling constant life-or-death monitoring, and requiring complicated wiring. This has the advantage that it is not necessary. Note that even in the case of bus communication, the opening of the door 500 from the combined sensor 300 based on the above combined sensor door opening conditions is not performed by directly outputting the door open control signal DS from the combined sensor 300 to the door controller 100, but by the combined sensor 300. By outputting the output command OC to the receiver 200, the combined sensor 300 outputs the door opening control signal DS to the door controller 100 via the receiver 200. Note that other provided sensors (not shown) are also connected to the bus such as the CAN bus.

<Cross-cutting prevention mode>
As described above, if the combined sensor door opening conditions described above are satisfied, it is possible to open the door 500 without pressing the touch switch 210. However, if the same conditions are satisfied, it is possible to open the door 500 without pressing the touch switch 210. However, the door 500 may be opened inadvertently without pressing the touch switch 210. Therefore, the combination sensor 300 makes the predetermined time longer than the normal length (this predetermined time (The state where the length is longer than the normal length is also referred to as the "cross-cutting prevention mode.") When making the predetermined time longer than the normal length, for example, extend it by a predetermined multiple, add a predetermined value, or set it to an infinite value. This can further reduce the possibility that the door 500 will be inadvertently opened without pressing the touch switch 210 due to a cross-intruder who suddenly passes near the door. This will be explained in detail below.

As shown in FIG. 3, when the object 600 approaches the door 500 in a normal motion rather than crossing, that is, the object 600 approaches the door 500 from the detection area D6 included in the far area toward the detection area D1 included in the nearby area. When a target object 600 is detected, among the infrared detection elements corresponding to the row direction that detect each detection area D1 to D6 in the column direction (8 in each detection area in the figure), some of the elements that detected the object 600 are detected. The detected waveform is a rectangular waveform diagram as shown in FIG. In the figure, the horizontal axis (not shown) is the time axis, and when the target object 600 is detected, a signal rises in the vertical axis (not shown) direction and is asserted (or made valid). According to the figure, when the object 600 approaches the door 500 in a normal motion rather than crossing, the signal is asserted in order from the waveform diagram of the detection area D6 to the waveform diagram of the detection area D1 over time. To go.

On the other hand, as shown in FIG. 3, when the target object 600 is in a traverse motion, that is, the target object 600 does not enter the detection areas D3 to D6 in the far area, and the target object only appears in the detection areas D1 and D2 in the nearby area. 600 enters, the waveform diagram will be as shown in Figure 5, and the signal will not be asserted in the waveform diagram of the detection areas D3 to D6 in the far area, but the signal will be asserted only in the detection areas D1 and D2 in the nearby area. be done. In this way, when the object 600 is not detected in the non-detection state and is detected in the nearby area without being detected in the distant area, the cross-cutting approach of the object 600 is detected. When the cross-crossing approach of the object 600 is detected, the cross-crossing countermeasure mode is applied, and the combination sensor 300 makes the predetermined time longer than the normal length to prevent the door 500 from being opened unnecessarily. Note that in this embodiment, the cross-cutting prevention mode is a mode that is applied only once from when the object 600 is detected in the detection area until it is no longer detected, and when the object 600 is not detected in the detection area. Once it is gone, the mode returns to normal operation, such as the basic operation described above.

<Normal length change mode>
As described above, it is possible to open the door 500 without pressing the touch switch 210 while having the function of applying the cross-cutting prevention mode. Area sensor frequency, such as when the number of times the door is opened (also called area sensor frequency) is greater than the number of times the touch switch door is opened (also called touch switch frequency), and when the touch switch door opens more than half of the time. If the predetermined time under the combined sensor door opening condition is the same when the area sensor frequency is lower than the touch switch frequency, and when the area sensor frequency is higher than the touch switch frequency, it will be difficult for visually impaired people, wheelchair users, strollers, For trolley users and the like, comfort when using the automatic door may be impaired. This is despite the fact that the combined sensor door is opened more frequently by the above-mentioned trolley users than the door opened by the touch switch 210 used by normal people such as healthy people. This is because if the time (predetermined time, which in principle is usually long) is not changed rigidly, it will be uncomfortable and inconvenient for the above-mentioned trolley users to have to wait longer than the general public for the door to be opened. .

Therefore, the combination sensor 300 calculates (counts) the touch switch frequency and the area sensor frequency, and if the area sensor frequency is higher than the touch switch frequency, shortens the normal length of the predetermined time, and When the sensor frequency is low, the normal length of the predetermined time is returned to the standard value, which is the initial value at the time of shipment (this response is also referred to as "normal length change mode"). That is, the normal length of the predetermined time is determined by taking into account the history of the combined sensor door opening and touch switch door opening when opening the door 500. When shortening the normal length of the predetermined time, for example, it is reduced by a predetermined ratio, subtracted by a predetermined value, or set to 0 seconds. In this embodiment, if the touch switch frequency and the area sensor frequency are equal, the normal length of the predetermined time may be shortened in consideration of various conditions such as the temperament of the door user, or the normal length of the predetermined time may be shortened. You may return the length to the standard value. With the above configuration, it is possible to reduce the loss of comfort when using the automatic door described above. On the other hand, the combination sensor makes it less likely that the door will open accidentally. This will be explained in detail below. Note that the area sensor frequency and touch switch frequency are not limited to the number of times described above, and an average value or the like may be used.

FIG. 6 shows a case where the area sensor frequency is higher than the touch switch frequency, and FIG. 7 shows a case where the area sensor frequency is lower than the touch switch frequency. In FIG. 6, the touch switch frequency is 3 times out of 10 times in the predetermined period, whereas the area sensor frequency is 7 times out of 10 times in the predetermined period. That is, if the area sensor frequency is higher than the touch switch frequency and the normal length change mode is applied, the combined sensor 300 shortens the normal length of the predetermined time. On the other hand, in FIG. 7, the touch switch frequency is 8 out of 10 times in the predetermined period, whereas the area sensor frequency is 2 out of 10 times in the predetermined period. That is, when the area sensor frequency is low relative to the touch switch frequency and the normal length change mode is applied, the combination sensor 300 returns the normal length of the predetermined time to the standard value. Note that the predetermined period is 10 times from the most recent current time, but the number of times is not limited to 10 times.

<Operation of the door opening/closing control system of this embodiment>
Next, the operation of the door opening/closing control system of this embodiment described above will be explained using the flow diagram of FIG. 8. Although the above-mentioned cross-cutting prevention mode and normal length change mode are not essential functions, this embodiment includes both functions.

When the door opening/closing control system is started (START), the predetermined time is set to a normal length. Immediately after starting, the normal length is at the initial value (step S1). Thereafter, the touch signal TS detection process of the touch switch sensor 200 and the target object 600 detection process of the combined sensor 300 are started (step S2). After this, if the door 500 of the automatic door is not completely closed (NO in step S3), the conventional detection logic, that is, the pinch prevention detection using the combination sensor 300, etc., is executed while the door 500 is open. (Step S4), the process returns to step S3 again.

If the automatic door 500 is completely closed (YES in step S3), then it is determined whether the combined sensor 300 has detected the object 600 (step S5). If the combined sensor 300 does not detect the target object 600 (NO in step S5), there is no need to perform a cross-cutting determination, so the process moves to step S9. If the combined sensor 300 detects the target object 600 (YES in step S5), then it is determined whether the combined sensor 300 detects the target object 600 in a nearby area without detecting the target object 600 in an area other than the area near the door. (Cross-cutting determination) is made (step S6).

If the combined sensor 300 does not detect the object 600 in an area other than the area near the door, but detects it in the nearby area, it determines that the object 600 has crossed the door (YES in step S6), enters the cross-cross countermeasure mode, and performs a predetermined operation. The time is lengthened (step S8). Next, the process moves to step S9. Note that when the target object 600 is no longer detected after being detected in the detection area, the cross-cutting prevention mode is canceled by interrupt processing or the like. If the combined sensor 300 does not detect the object 600 in an area other than the area near the door, but does not detect the object 600 in the nearby area, it determines that the object 600 is not crossing the door (NO in step S6), and waits for a predetermined period of time normally. (step S7). Next, the process moves to step S9.

In step S9, it is determined whether the touch switch 210 has been pressed based on whether or not the touch signal TS has been detected. If the touch switch 210 has been pressed (YES in step S9), the process moves to step S12, and the touch switch 210 is pressed. If there is no press (NO in step S9), the process moves to step S10.

In step S10, it is determined whether the detection time in the area near the combination sensor 300 is longer than a predetermined time. If the detection time in the area near the combined sensor 300 is longer than the predetermined time (YES in step S10), the combined sensor 300 outputs the output command OC of the door opening control signal DS to the touch switch sensor 200 (step S11). ), the process moves to step S12. If the detection time in the area near the combined sensor 300 is not longer than the predetermined time (NO in step S10), the process returns to step S3.

In step S12, the receiver (touch switch sensor) 200 outputs the door opening control signal DS because the touch switch 210 is pressed or the combined sensor door opening condition is satisfied. Thereby, automatic door opening (opening of door 500) is executed by touch switch door opening or combined sensor door opening.

In step 13, the normal length change mode is executed, and the combination sensor 300 counts the touch switch frequency and the area sensor frequency for the last 10 times at the current time, which is a predetermined period. Next, it is determined whether the area sensor frequency is higher than the touch switch frequency (step S14). If the area sensor frequency is higher than the touch switch frequency (YES in step S14), the normal length of the predetermined time is shortened (step S16), and if the area sensor frequency is not higher than the touch switch frequency (NO in step S14). ), the normal length of the predetermined time is returned to the standard value (step S15). After this, the process returns to step S3 and the above process is repeated.

The present invention is not limited to the above-described embodiments, and various additions, changes, or deletions can be made without departing from the gist of the present invention. Therefore, such materials are also included within the scope of the present invention.

For example, although the receiver 200 outputs the door opening control signal DS, the combined sensor 300 may output it instead of the output command. The calculation (counting) of the predetermined time, area sensor frequency, and touch switch frequency may be performed by the receiver 200 instead of the combined sensor 300. In this case, specifically, the combination sensor 300 transmits the detection state (result) of the target object 600 to the receiver 200, and the receiver 200 transmits the reception state of the touch signal TS of the touch switch 210 to the combination sensor 300. The application can be filed by informing the.

In addition, in the above-described operations in the cross-cutting prevention mode and the normal length change mode, the touch switch 210 may be malfunctioning, the visually impaired, wheelchair users, strollers, trolley users, etc. may be passing by in extremely large numbers. If the area sensor frequency becomes extremely high compared to the switch frequency (such as when the area sensor frequency is 90% or more), there is a possibility that the comfort of using the automatic door for the trolley users etc. will be impaired. There is. In this case, while the use of the automatic door by the above-mentioned trolley user, etc. can be regarded as normal (normal, normal), the above-mentioned operations of the above-mentioned cross-cutting prevention mode and normal length change mode are not used by the above-mentioned trolley user, etc. This is because the system treats cases where this happens as exceptional cases. Therefore, when the area sensor frequency becomes extremely high compared to the touch switch frequency, the above-mentioned operation of the cross-cross countermeasure mode is not performed, that is, the cross-cross judgment is performed (step S6 in FIG. 8). Instead, the predetermined time may remain the normal length. In this case, even if the target object 600 is not intended to perform a cross-cutting motion, even if it is determined that the target object 600 is making a cross-crossing motion in the apparent cross-cutting countermeasure mode, the determination as a cross-crossing motion is not made. , the loss of comfort can be avoided. In addition, if the area sensor frequency becomes extremely high compared to the touch switch frequency, the above operation in the normal length change mode is not performed, that is, if the area sensor frequency is higher than the touch switch frequency. The normal length may be returned to the standard value, which is the initial value, without making a determination (step S14 in FIG. 8). In this case, since the automatic door is used by the trolley user in a normal state (normal state, normal state), it is not necessary to apply the normal length change mode.

1 Door opening/closing control system 100 Door controller (starting means)
200 Receiver (touch switch sensor)
210 Touch switch 300 Combined sensor (area sensor)
400 No eyes 500 Door 600 Object D1, D2 Detection area (nearby area)
D3-D6 Detection area (distant area)
DS Door open control signal OC Output command TS Touch signal

Claims (4)

a touch switch provided on the door and transmitting a touch signal upon contact or proximity of a part of the human body;
an area sensor forming a detection area that detects objects around the door based on detection waves from the objects;
a receiver that receives a touch signal from the touch switch and outputs a door opening control signal;
activating means for opening the door when receiving the door opening control signal;
A door opening/closing control system comprising:
When the area sensor continues to detect the object in an area near the door in the detection area when the door is in a closed state, the area sensor outputs the door open control signal when Outputs the output command of
The receiver outputs the door opening control signal also when receiving the output command,
The area sensor makes the predetermined time longer than the normal length when the target object is detected in the nearby area without being detected in a distant area other than the nearby area.
Door opening/closing control system. a touch switch provided on the door and transmitting a touch signal upon contact or proximity of a part of the human body;
an area sensor forming a detection area that detects objects around the door based on detection waves from the objects;
a receiver that receives a touch signal from the touch switch and outputs a door opening control signal;
activating means for opening the door when receiving the door opening control signal;
A door opening/closing control system comprising:
When the area sensor continues to detect the object in an area near the door in the detection area when the door is in a closed state, the area sensor outputs the door open control signal when Outputs the output command of
The receiver outputs the door opening control signal also when receiving the output command,
The area sensor is
The area sensor frequency is the output frequency of the door opening control signal based on the output command output from the area sensor within a predetermined period, and the door is based on the touch signal sent from the touch switch within the predetermined period. Calculate the touch switch frequency, which is the output frequency of the open control signal,
If the area sensor frequency is higher than the touch switch frequency, the normal length of the predetermined time is shortened;
when the area sensor frequency is lower than the touch switch frequency, returning the normal length of the predetermined time to a standard value;
Door opening/closing control system. The door opening/closing control system according to claim 1 or 2 ,
The area sensor is provided around the door including a corner of the door and a ceiling.
Door opening/closing control system. The door opening/closing control system according to any one of claims 1 to 3 ,
The touch switch may be a mechanical switch that sends the touch signal upon contact with the part of the human body, or may detect the part of the human body in a touch detection area near the touch switch to detect the proximity of the part of the human body. an optical sensor that transmits the touch signal according to
Door opening/closing control system.

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