JP5758220B2 - Automatic door - Google Patents

Description

  The present invention relates to an automatic door.

  2. Description of the Related Art Conventionally, as disclosed in, for example, Patent Documents 1 and 2 below, automatic doors that are designed in consideration of the efficiency of indoor air conditioning are known. Specifically, in the automatic door disclosed in Patent Document 1, an imaging device capable of imaging the inside of a monitoring area is provided, and the position, moving direction, and moving speed of an object photographed by this imaging device are determined by image processing, The door is opened and closed based on the information. On the other hand, the automatic door disclosed in Patent Document 2 is provided with an image sensor. The image captured by the image sensor is analyzed to detect the moving direction of the moving body, and the door is moved based on the moving direction. Opening and closing is controlled.

JP 2006-225874 A Japanese Patent Laid-Open No. 2008-82006

  In the automatic doors disclosed in Patent Documents 1 and 2, the moving direction of the moving body (person or the like) is grasped by analyzing the captured image, and the door opening / closing is controlled accordingly, so that the air conditioning efficiency decreases. Can be suppressed. However, the automatic doors disclosed in Patent Documents 1 and 2 require an imaging device or an image sensor in addition to the activation sensor, and thus have a problem of becoming very expensive.

  Therefore, the present invention has been made in view of such a point, and an object of the present invention is to provide an automatic door that can suppress a decrease in air conditioning efficiency while performing opening / closing control based on a detection result by a start sensor. It is to provide.

  In order to achieve the above object, the present invention provides an inner activation sensor having a predetermined area located on the indoor side as a detection area, an outer activation sensor having a predetermined area located on the outdoor side as a detection area, and the inner side. A controller capable of controlling opening and closing of the door based on detection of the start sensor and the outer start sensor and having an open timer for measuring a predetermined time set in advance, and the controller includes the inner start sensor And when one of the outer activation sensors is in a detection state where a person or an object is detected, the door is opened, and then when the other of the inner activation sensor and the outer activation sensor is changed from a detection state to a non-detection state, the door This is an automatic door that controls to close the door after the opening operation is stopped and the predetermined time is counted by the open timer.

  In the present invention, when one of the activation sensors detects a person or an object, the controller performs control to open the door. And if the other starting sensor will be in a detection state and will be in a non-detection state, the door opening operation will be stopped at that time. That is, the door opening operation is stopped when there is no person in the detection area. For this reason, unlike the conventional automatic door in which the door automatically opens to the fully open position (or to a predetermined half-open position) even after the detection area is empty, the door opening width can be suppressed. it can. Therefore, it can suppress that the air-conditioning efficiency in a room | chamber falls when a door opens more than necessary. In addition, since the opening / closing control is based on the detection result of the activation sensor, it is possible to perform control for suppressing the reduction of the air conditioning efficiency without newly adding an imaging device or the like.

  The present invention also provides an inner activation sensor having a predetermined area located on the indoor side as a detection area, an outer activation sensor having a predetermined area located on the outdoor side as a detection area, and a predetermined area among areas through which the door passes. An auxiliary sensor having an area as a detection area, and a controller having an open timer for controlling opening and closing of the door based on detection of the inner activation sensor and the outer activation sensor and measuring a predetermined time. The controller opens the door when one of the inner activation sensor and the outer activation sensor detects a person or an object, and then opens the door when the auxiliary sensor changes from the detection state to the non-detection state. When the other of the inner start sensor and the outer start sensor changes from the detection state to the non-detection state, the Temporarily stops the opening operation of an automatic door performs control of closing operation.

  In the present invention, when one of the activation sensors detects a person or an object, the controller performs control to open the door. When the auxiliary sensor changes from the detection state to the non-detection state, the operation of the open timer is prohibited. In other words, the fact that the auxiliary sensor is in the non-detection state means that there is no person in the region through which the door passes, and therefore the time measurement by the open timer is not performed thereafter. Then, when the other activation sensor changes from the detection state to the non-detection state, the opening operation of the door is temporarily stopped and the closing operation is performed. In other words, the door opening operation is stopped and the closing operation is performed when there is no person in the detection area. For this reason, unlike the conventional automatic door in which the door automatically opens to the fully open position (or to a predetermined half-open position) even after the detection area is empty, the door opening width can be suppressed. it can. Therefore, it can suppress that the air-conditioning efficiency in a room | chamber falls when a door opens more than necessary. In addition, since the opening / closing control is based on the detection result of the activation sensor, it is possible to perform control for suppressing the reduction of the air conditioning efficiency without newly adding an imaging device or the like.

  The present invention also provides an inner activation sensor having a predetermined area located on the indoor side as a detection area, an outer activation sensor having a predetermined area located on the outdoor side as a detection area, the inner activation sensor, and the outer activation sensor. And a controller having an open timer that measures a predetermined time set in advance based on the detection of the door, and the controller is one of the inner start sensor and the outer start sensor. When the detection state detects a person or an object, the door is opened, and then when the one activation sensor is in a non-detection state in a time less than a predetermined time, the operation of the open timer is prohibited, It is an automatic door that performs control to temporarily stop the opening operation of the door and close it when it enters a non-detection state.

  In the present invention, when one of the activation sensors detects a person or an object, the controller performs control to open the door. And if the said start sensor will be in a non-detection state in the time less than the predetermined time set beforehand, the opening operation | movement of a door will be once stopped at that time, and it will be closed. In other words, the door opening operation is stopped and the closing operation is performed when there is no person in the detection area. For this reason, unlike the conventional automatic door in which the door automatically opens to the fully open position (or to a predetermined half-open position) even after the detection area is empty, the door opening width can be suppressed. it can. Therefore, it can suppress that the air-conditioning efficiency in a room | chamber falls when a door opens more than necessary. In addition, since the opening / closing control is based on the detection result of the activation sensor, it is possible to perform control for suppressing the reduction of the air conditioning efficiency without newly adding an imaging device or the like.

  When the one activation sensor is in a detection state for a predetermined time, the controller moves the door to a preset position regardless of the non-detection state of the other activation sensor. An opening operation may be performed.

  In this aspect, when there is a passerby who moves at a speed higher than a normally assumed speed, an open width necessary for the pass can be secured. Therefore, it is possible to suppress the impediment to traffic.

  As described above, according to the present invention, it is possible to suppress the air conditioning efficiency from being lowered while performing the opening / closing control based on the detection result by the activation sensor.

It is a figure showing roughly composition of an automatic door concerning a 1st embodiment of the present invention. It is a block diagram for demonstrating the control system of the said automatic door. (A) It is a figure which shows the detection state and non-detection state of a starting sensor and an auxiliary sensor when there is a person who passes from the indoor side to the outdoor side, (b) Opening and closing of the door with the automatic door of the comparative example in this case It is a figure which shows operation | movement, (c) It is a figure which shows the opening / closing operation | movement of the door in 1st Embodiment in this case, (d) It is the figure which showed a mode that a person passes. (A) It is a figure which shows the detection state and non-detection state of an activation sensor and an auxiliary sensor when there is a person who passes from the indoor side to the outdoor side and the inner activation sensor is in a detection state for a first predetermined time or more. (B) It is a figure which shows the door opening / closing operation | movement with the automatic door of the comparative example in this case, (c) It is a figure which shows the door opening / closing operation | movement in 2nd Embodiment in this case. (A) The detection state and non-detection state of the activation sensor and the auxiliary sensor when there is a person who passes from the indoor side to the outdoor side and the inner activation sensor is in the detection state for the first to second predetermined times. It is a figure which shows, (b) It is a figure which shows the opening / closing operation | movement of the door in the automatic door of the comparative example in this case, (c) It is a figure which shows the opening / closing operation | movement of the door in 2nd Embodiment in this case. (A) It is a figure which shows the detection state and non-detection state of an activation sensor and an auxiliary sensor when an inner side activation sensor will be in a detection state for less than 2nd predetermined time, (b) of the comparative example in this case It is a figure which shows the door opening / closing operation | movement in an automatic door, (c) It is a figure which shows the door opening / closing operation | movement in 2nd Embodiment in this case. (A) It is a figure which shows the detection state and non-detection state of a starting sensor and an auxiliary sensor when there is a person who passes from the indoor side to the outdoor side, (b) Opening and closing of the door with the automatic door of the comparative example in this case It is a figure which shows operation | movement, (c) It is a figure which shows the opening / closing operation | movement of the door in 3rd Embodiment in this case.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

(First embodiment)
As shown in FIG. 1, the automatic door 10 according to the first embodiment opens and closes an opening 12 such as an entrance / exit through which a person passes by moving a sliding door type door 14. The door 14 opens and closes the opening 12 formed in the wall body 16 that partitions the air-conditioned room (indoor) and the room (outdoor).

  On the upper side of the opening portion 12, an elongated shapeless eye 18 is arranged so as to extend along the upper edge portion of the opening portion 12. Although not shown in the figure, an opening / closing drive mechanism for opening / closing the door 14 is housed in the mesh 18. This opening / closing drive mechanism is of a belt drive system, for example, and rotates an endless belt by driving a motor 20 (see FIG. 2) to reciprocate the door 14 between an open position and a closed position in the horizontal direction. Move.

  The automatic door 10 includes an inner activation sensor 24, an outer activation sensor 26, an auxiliary sensor 28, and a controller 40 (see FIG. 2).

  As shown in FIG. 1, the inner activation sensor 24 is attached to, for example, the interior side surface of the eyeless 18, and a predetermined area located on the indoor side with respect to the opening 12 is defined as a detection area (inner detection area) 51. The inner activation sensor 24 detects a person or an object as a detection target in the inner detection area 51. The inner detection area 51 includes a large number of detection spots. When a person or an object is detected at any of the detection spots, the inner activation sensor 24 outputs a detection signal.

  The outside activation sensor 26 is attached, for example, to the outdoor side surface of the eyeless 18, and this outside activation sensor 26 defines a predetermined area located outside the opening 12 as a detection area (outside detection area) 55. The outside activation sensor 26 detects a person or an object as a detection target in the outside detection area 55. The outside detection area 55 includes a large number of detection spots. When a person or an object is detected at any of the detection spots, the outside activation sensor 26 outputs a detection signal.

  The inner activation sensor 24 and the outer activation sensor 26 are an ultrasonic sensor that detects an ultrasonic wave as a medium or a radio wave sensor that detects an electric wave as a medium, instead of a sensor that detects a person or the like using infrared rays as a medium. It may be configured.

  The auxiliary sensor 28 is for detecting a person or an object passing on the track of the door 14 and preventing a person or the like from being sandwiched between the doors 14. A predetermined area of the area through which the door 14 passes is determined. A detection area (auxiliary detection area) 57 is set. The auxiliary sensor 28 is composed of a phototube provided with a projector and a light receiver (not shown). These projectors and light receivers are embedded so as to face each other in a vertical 59 constituting a three-way frame fixed to the wall body 16 so that light emitted from the projectors enters the light receiver. . The auxiliary sensor 28 is configured to output a signal when the light emitted from the projector is blocked and the light cannot be detected by the light receiver.

  In addition, as the auxiliary sensor 28, a sensor that monitors a predetermined region on the track of the door 14 from above the passage with a projector and a light receiver such as an activation sensor can be used.

  The controller 40 includes a known microcomputer circuit and an input / output interface with an external device, and exhibits a predetermined function by performing a control operation in accordance with a microcomputer program. As shown in FIG. 2, each signal from the inner activation sensor 24, the outer activation sensor 26, and the auxiliary sensor 28 is input to the controller 40. The controller 40 functionally includes an opening / closing control means 41, a timing control means 42, and an auxiliary sensor control means 43.

  The opening / closing control means 41 outputs a control signal based on signals from the sensors 24 and 26. Specifically, the opening / closing control unit 41 detects a person or an object in the inner detection area 51 (that is, enters a detection state) and receives a detection signal from the inner activation sensor 24 or a person in the outer detection area 55. Alternatively, when an object is detected (that is, in a detection state) and a detection signal is input from the outside activation sensor 26, a control signal (motor drive signal) for opening the door 14 is output to the motor driver 62.

  When the detection signal output from the activation sensors 24 and 26 is input and the detection signal from the sensors 24 and 26 is not input, the opening / closing control means 41 outputs a control signal for stopping the door 14 to the motor driver. To 62.

  The opening / closing control means 41 outputs a control signal for closing the door 14 to the motor driver 62 when a control signal (described later) output from the timing control means 42 is input.

  The motor driver 62 controls driving of the motor 20 and controls the polarity and voltage value of the voltage applied to the motor 20 based on the control signal from the opening / closing control means 41. The rotation direction of the motor 20 is controlled by the polarity of the applied voltage, and the rotation speed is controlled by the voltage value.

  When the detection signal output from the activation sensors 24 and 26 is input and the detection signal from the sensors 24 and 26 is not input, the time measuring control unit 42 activates the open timer 45 from that point. When the open timer 45 measures a predetermined time set in advance, the time control means 42 outputs a control signal indicating that the timer is up. Note that the time-counting control unit 42 resets the timer count when a detection signal from the activation sensors 24 and 26 or a detection signal from the auxiliary sensor 28 is input during the timer count.

  The auxiliary sensor control means 43 outputs a control signal for the opening / closing control means 41 to open the door 14, and the opening / closing control means 41 closes the door 14 while the detection signal from the auxiliary sensor 28 is input thereafter. Output of a control signal is limited. That is, while the person detected in the inner detection area 51 or the outer detection area 55 passes through the opening 12, the door 14 is restricted from performing a closing operation.

  Here, the control operation of the automatic door according to the first embodiment will be described with reference to FIGS. FIG. 3A shows the transition of the detection status of each sensor 24, 26, 28 when a person in the room goes out of the room through the opening 12. FIG. 3B shows the opening / closing operation of the door in the comparative example, and FIG. 3C shows the opening / closing operation of the door 14 in the automatic door 10 according to the first embodiment.

  As shown in FIG. 3D, when a person in the room enters the inside detection area 51, the inside activation sensor 24 enters a detection state (time t1) as shown in FIG. Outputs a control signal for opening the door 14, the motor 20 is driven, and the door 14 starts to open (FIG. 3C). Thereafter, while the person passes through the auxiliary detection area 57 and the outer detection area 55 in this order, the door 14 continues to open. Then, when a person leaves the outside detection area 55 and the outside activation sensor 26 enters a non-detection state, the door 14 is stopped at that time, and the timing control means 42 activates the open timer 45 from that time (time t2). ). The open timer 45 measures a predetermined time, and when the timer is up (time t3), the opening / closing control means 41 outputs a control signal for closing the door 14, and the motor 20 is driven to start the closing operation of the door 14.

  As described above, in the first embodiment, when the inner activation sensor 24, which is one of the activation sensors, enters a detection state in which a person is detected, the opening / closing control means 41 performs control to open the door 14. Then, when the outer activation sensor 26, which is the other activation sensor, enters the detection state and then enters the non-detection state, the opening operation of the door 14 is stopped at that time. That is, the opening operation of the door 14 is stopped when there is no person in the outside detection area 55. Therefore, unlike the automatic door of the comparative example (see FIG. 3B) in which the door automatically opens to the fully open position (or to the predetermined half-open position) even after there are no people in the outside detection area. The opening width of the door 14 can be suppressed. Therefore, it can suppress that the indoor air-conditioning efficiency falls because the door 14 opens more than necessary. In addition, since the opening / closing control is performed using the detection results of the activation sensors 24 and 26, it is possible to perform control for suppressing reduction in air conditioning efficiency without newly adding an imaging device or the like.

  In the automatic door 10 according to the first embodiment, the auxiliary sensor 28 is provided. However, the auxiliary sensor 28 may be omitted.

(Second Embodiment)
4 to 6 show a second embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same component as 1st Embodiment here, and the detailed description is abbreviate | omitted.

  In the first embodiment, the activation sensors 24 and 26 detected at the beginning (in the example of FIG. 3, the inner activation sensor 24 in the example of FIG. 3) are detected at a later time regardless of the time during which the activation sensors are detected. In the example of FIG. 3, the timer count is started when the outer activation sensor 26) is in the non-detection state. However, in the second embodiment, the activation sensors 24 and 26 detected first are in the detection state. The control is switched according to the time.

  Specifically, in the open / close control means 41, a time from when the detection signal output from one of the start sensors 24 and 26 is input to when the detection signal from the sensors 24 and 26 is not input is set in advance. When the other activation sensors 26 and 24 are in a non-detection state for the predetermined time (first predetermined time) or longer, a control signal for stopping the door 14 is output to the motor driver 62.

  On the other hand, the opening / closing control means 41 has a time shorter than the first predetermined time and longer than a predetermined time (second predetermined time) and less than the first predetermined time. When the activation sensors 24 and 26 are in the detection state, the door 14 is not stopped but set in advance even after the detection signal from the other activation sensors 26 and 24 is not input. The door 14 is opened and stopped until the opening width is reached. This opening width is a width that does not hinder the passage of people. In this control, since the speed of the passers-by passing through the detection areas 51 and 55 is high, in the control of stopping the door 14 at the moment when the detection signals from the other activation sensors 26 and 24 are not input, The purpose is to avoid the situation where the door is only opened to the extent that it interferes with passage.

  The first predetermined time can be calculated from the time required for the door 14 in the closed position to open to the preset half-open position, and the opening speed of the door 14 (set to the automatic door 10). And the half-open width (value set for the automatic door 10). That is, the first predetermined time is a time (for example, 5 seconds) required for the door 14 to reach the half-open position from the closed position when the door 14 is opened at the set opening speed. If a passerby passes through the detection areas 51 and 55 in less than this time, the door 14 is opened to the half-open position to secure an open width that does not hinder the person to pass. To do.

  The second predetermined time is based on the width of the detection areas 51 and 55 (width in the direction perpendicular to the wall body 16) and the normal speed when a person walks (for example, 3 m / second, a preset value). It is set to a time (for example, 2 seconds) that is about half of the calculated passing time of the detection areas 51 and 55. If the activation sensors 24 and 26 are in a non-detection state within this time, it can be determined that the detected person is not walking toward the opening 12.

  Here, the control operation of the automatic door 10 according to the second embodiment will be described with reference to FIGS. 4 (a) to 6 (d). Each of these is a control operation when a passer-by who goes out of the room through the opening 12 from the room is detected, but FIG. 4 shows the speed of the detected passer-by at a normal speed (or a slower speed). ) In FIG. 5 is a control operation when the detected passerby passes through the detection areas 51 and 55 at a speed higher than the normal speed. FIG. 6 shows a control operation when a person who does not pass through the opening 12 is detected.

  FIG. 4A shows the transition of the detection status of each sensor 24, 26, 28 when the detection state of the inner start sensor (one start sensor) 24 is equal to or longer than the first predetermined time. ) Shows the opening / closing operation of the door in the comparative example, and FIG. 4C shows the opening / closing operation of the door 14 in the automatic door 10 according to the second embodiment.

  When the inner activation sensor 24 detects a person, as in the first embodiment, the motor 20 is driven and the door 14 starts to open (time t5). Then, the inner activation sensor 24 continues to be in the detection state for a preset first predetermined time or longer, and then enters the non-detection state, and the outer activation sensor 26 enters the detection state. In this case, the door 14 is stopped when the outside activation sensor 26 is in the non-detection state, and the open timer 45 is activated at the same time (time t6). When the timer expires, the door 14 closes and starts the operation (time t7).

  On the other hand, when the time during which the inner activation sensor 24 continues the detection state is less than the first predetermined time and equal to or longer than the second predetermined time, as illustrated in FIGS. 5A and 5C, the inner activation is performed. After the sensor 24 enters the detection state (time t9), even if the outside activation sensor 26 enters the non-detection state (time t10), the door 14 is not stopped at that time, and the preset half-open state is set. Open the door 14 to the position.

  In addition, when the time during which the inner activation sensor 24 continues the detection state is less than the second predetermined time, the inner activation sensor 24 is in the non-detection state as shown in FIGS. 6 (a) and 6 (c). At that time, the opening operation of the door 14 is temporarily stopped and immediately closed (time t13). That is, as shown in FIG. 6D, this corresponds to a case where a person who does not cross the detection areas 51 and 55 in the direction passing through the opening 12 is detected, and thus the inner activation sensor 24 is in a non-detection state. At that time, the door 14 is closed.

  Therefore, in the second embodiment, when the inner activation sensor 24 detects a person, the opening / closing control means 41 performs control for opening the door 14. Then, when the activation sensor 24 becomes in a non-detection state within a preset second predetermined time, the opening operation of the door 14 is temporarily stopped and closed at that time. That is, when the person is not in the detection area 51, the opening operation of the door 14 is stopped and the closing operation is performed. For this reason, unlike the comparative example in which the door 14 automatically opens to the fully open position (or to a predetermined half-open position) even after there are no people in the detection area 51, the opening width of the door 14 is suppressed. Can do. Therefore, it can suppress that the indoor air-conditioning efficiency falls because the door 14 opens more than necessary. In addition, since the opening / closing control is performed using the detection results of the activation sensors 24 and 26, it is possible to perform control for suppressing reduction in air conditioning efficiency without newly adding an imaging device or the like.

  Further, in the second embodiment, when the inner activation sensor 24 is in the detection state for a time that is equal to or longer than a preset second predetermined time and less than the first predetermined time, the door 14 reaches the preset half-open position. Therefore, when there is a passerby who moves at a speed faster than a normally assumed speed, an opening width necessary for the pass can be secured. Therefore, it is possible to suppress the impediment to traffic.

  In the automatic door 10 according to the second embodiment, the auxiliary sensor 28 is provided. However, the auxiliary sensor 28 may be omitted.

  Other configurations, operations, and effects are the same as those in the first embodiment, although explanations thereof are omitted.

(Third embodiment)
FIG. 7 shows a third embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same component as 1st Embodiment here, and the detailed description is abbreviate | omitted.

  In the first embodiment, the open timer 45 is activated when the activation sensor that has been in the detection state afterwards (the outer activation sensor 26 in the example of FIG. 3) is in the non-detection state. However, in the third embodiment, When the start sensor that has entered the detection state from the detection state changes from the detection state to the non-detection state, the door 14 is temporarily stopped at that point in time to perform a closing operation.

  The timing control means 42 is configured to prohibit the operation of the open timer 45 when the auxiliary sensor 28 once enters a detection state and outputs a detection signal, and then stops outputting the detection signal after entering the non-detection state. Yes. Note that the timing control means 42 cancels the prohibition of the operation of the open timer 45 when the activation sensors 24 and 26 are newly detected.

  When the detection signals output from the activation sensors 24 and 26 are input and the detection signals from the sensors 24 and 26 are not input, the opening / closing control means 41 temporarily stops the door 14 and immediately closes it. A control signal is output to the motor driver 62.

  As shown in FIGS. 7A and 7C, after the passer-by enters the inner detection area 51 and the inner activation sensor 24 (one activation sensor) enters the detection state (time t15), the passer-by Passes through the inner detection area 51 and enters the auxiliary detection area 57, and the auxiliary sensor 28 enters a detection state (time t16). Thereafter, when the auxiliary sensor 28 enters a non-detection state (time t17), time-control The means 42 prohibits the operation of the open timer 45. For this reason, even if the outside activation sensor 26 (the other activation sensor) subsequently changes from the detection state to the non-detection state (time t18), the open timer 45 does not operate and the door 14 immediately closes.

  As described above, in the third embodiment, when the auxiliary sensor 28 changes from the detection state to the non-detection state, the operation of the open timer 45 is prohibited. That is, when the auxiliary sensor 28 is in the non-detection state, there is no person in the region through which the door 14 passes, and therefore the time measurement by the open timer 45 is not performed thereafter. Then, when the outer activation sensor 26 changes from the detection state to the non-detection state, the opening operation of the door 14 is temporarily stopped and the closing operation is performed. That is, when the person is not in the detection area 55, the opening operation of the door 14 is stopped and the closing operation is performed. For this reason, the open width of the door 14 is suppressed unlike a conventional automatic door which automatically opens the door to the fully open position (or to a predetermined half-open position) even after there are no people in the detection area. Can do. Therefore, it can suppress that the indoor air-conditioning efficiency falls because the door 14 opens more than necessary. In addition, since the opening / closing control is performed using the detection results of the activation sensors 24 and 26, it is possible to perform control for suppressing reduction in air conditioning efficiency without newly adding an imaging device or the like.

  Also in the third embodiment, similarly to the second embodiment, when the time during which one of the start sensors 24, 26 is in the detection state is shorter than the second predetermined time, the start sensor 24 , 26 may be brought into a non-detection state and the door 14 may be temporarily stopped and closed.

DESCRIPTION OF SYMBOLS 10 Automatic door 14 Door 20 Motor 24 Inner start sensor 26 Outer start sensor 28 Auxiliary sensor 40 Controller 41 Opening / closing control means 42 Timekeeping control means 43 Auxiliary sensor control means 45 Open timer 51 Inner detection area 55 Outer detection area 57 Auxiliary detection area

Claims (4)

An inner activation sensor having a predetermined area located on the indoor side as a detection area;
An outside activation sensor having a predetermined area located outside the room as a detection area;
A controller that can control the opening and closing of the door based on the detection of the inner start sensor and the outer start sensor, and has an open timer that measures a predetermined time set in advance,
The controller opens the door when one of the inner activation sensor and the outer activation sensor detects a person or an object, and then the other of the inner activation sensor and the outer activation sensor is not detected. An automatic door that performs control to stop the opening operation of the door when the detection state is reached, and to close the door after the predetermined time is counted by the open timer. An inner activation sensor having a predetermined area located on the indoor side as a detection area;
An outside activation sensor having a predetermined area located outside the room as a detection area;
An auxiliary sensor whose detection area is a predetermined area of the area through which the door passes;
A controller having an open timer for opening and closing control of the door based on detection of the inner start sensor and the outer start sensor, and for measuring a predetermined time set in advance,
The controller opens the door when one of the inner activation sensor and the outer activation sensor detects a person or an object, and then opens the door when the auxiliary sensor changes from the detection state to the non-detection state. An automatic door that performs control to temporarily stop and close the door when the other of the inner activation sensor and the outer activation sensor changes from the detection state to the non-detection state. An inner activation sensor having a predetermined area located on the indoor side as a detection area;
An outside activation sensor having a predetermined area located outside the room as a detection area;
A controller that can control the opening and closing of the door based on the detection of the inner start sensor and the outer start sensor, and has an open timer that measures a predetermined time set in advance,
The controller opens the door when one of the inner activation sensor and the outer activation sensor detects a person or an object, and then the one activation sensor is less than a preset predetermined time. An automatic door that performs control to prohibit the operation of the open timer when in a non-detection state, and temporarily stop the opening operation of the door when the non-detection state is entered.   When the one activation sensor is in a detection state for a predetermined time, the controller moves the door to a preset position regardless of the non-detection state of the other activation sensor. The automatic door according to any one of claims 1 to 3, wherein the automatic door is opened.

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