JPH0561379U - Automatic door opening and closing control device - Google Patents

Abstract

(57) [Abstract] [Purpose] Automatic door opening and closing control that can open and close the automatic door for the minimum time necessary to obtain safety and give a sense of security according to the moving speed of a person passing through the automatic door. Provide the device. A start switch is provided on the handle of the automatic door, and a safety switch is provided near the automatic door to detect the presence of a human body by blocking an optical signal between the projector and the receiver. The controller opens the automatic door by the transmission signal from the signal transmitter due to the activation of the start switch, and holds the automatic door open until the detection signal of the human body passing through the automatic door is output from the safety switch, The door opening / closing means is controlled so that the open state of the automatic door is released when the output of the detection signal is stopped. Therefore, regardless of the moving speed of the human body passing through the automatic door, the human body closes when the human body has finished passing through the automatic door. You can give a sense of security.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an automatic door opening / closing control device that opens an automatic door by operating an activation switch generally called a touch switch.

[0002]

[Prior Art]

 In recent years, as an automatic door opening / closing control device, a device using a passive infrared sensor that can easily set and change a detection area as a start switch has been generally adopted. This device detects the human body by using the variation of the radiated infrared light flux based on the temperature difference between the background of the detection area set by the optical system that collects the infrared light flux and the human body that has entered this detection area. It controls the opening and closing of the door.

By the way, when there is almost no space on the front side of the automatic door or when the automatic door is installed facing the street, the non-contact type passive infrared sensor is used. Adopting an automatic door opening and closing control device will cause inconvenience that the automatic door will be opened each time by detecting people other than those who pass through the door, such as people who simply pass by the side of the automatic door or mere passersby. .. For automatic doors installed in such places, automatic door opening / closing control devices that use so-called touch switches such as mechanical switches and electrostatic capacity type switches as start-up switches are provided. The automatic door opening / closing control device using this touch switch as an activation switch opens the automatic door when the activation switch is turned on, and opens and closes the automatic door after a set time of, for example, 1 to 3 seconds has elapsed from the opening. It is designed to be controlled. However, when the human body walks slowly and tries to pass through the automatic door by taking a time longer than the set time described above, or when a person stands up between the open automatic doors, the startup switch is turned on. Since the automatic door closing operation starts after the set time has elapsed, the automatic door will start to close when you try to pass through it, so I'm surprised.

Therefore, in order to ensure safety, in addition to the above-mentioned start switch, a safety sensor for detecting whether or not a human body is located between the automatic doors is provided near the automatic door. A device has been devised that controls the opening and closing of automatic doors by combining sensors. This device opens the automatic door when the activation switch is turned on, detects the human body passing between the open automatic doors, and turns on the safety sensor. The open state of the door is maintained even after the set time of, for example, to give a sense of security to a person talking between open automatic doors by keeping the automatic door open. I have to.

[0005]

[Problems to be solved by the device]

 However, the automatic door opening / closing control device equipped with the above-mentioned safety sensor still has a problem that must be solved in terms of safety. This problem will be described with reference to FIGS. 7 and 8. 7 and 8, each (a) shows the moving position of the human body passing through the automatic door, A is the position where the start switch can be operated, and B is the position detected by the safety sensor. Further, each (b) shows the operating state of the start switch, each (c) shows the operating state of the safety sensor, and each (d) shows the open / closed state of the automatic door. Then, as shown in FIG. 7A, when the human body walks slowly and tries to pass through the automatic door after operating the start switch, the set time (t1) elapses before the detection by the safety sensor. As shown in (d) of the figure, the closing operation of the automatic door is started, and it is very difficult to operate the start switch that is moving together with the closing door automatically. In the belt, it may be caught in the automatic door or hit the automatic door, which may unnecessarily surprise people.

Further, as shown in FIG. 8A, even when the human body operates the activation switch to open the automatic door, and then stops at the spot and starts talking, for example, the set time ( If you try to pass the automatic door in a hurry, seeing that t1) has elapsed and the automatic door closing operation has started as shown in (d) of the figure, the automatic door closes before being detected by the safety sensor. This may cause anxiety to those who try to pass through the automatic door during the time period indicated by t3.

Therefore, the present invention can control to open the automatic door only for a minimum time necessary for obtaining safety and giving a sense of security depending on the moving speed of a human body passing through the automatic door. The technical problem is to provide a simple automatic door opening / closing control device.

[0008]

[Means for Solving the Problems]

 The present invention has an automatic door opening / closing control device configured as follows as a technical means for achieving the above-mentioned problems. That is, a starter switch provided on the handle portion of the automatic door is tentatively operated to transmit a signal from a signal transmitter provided on the handle portion, and the door is opened by receiving this signal. In the automatic door opening / closing control device that has been enabled, a photoelectric safety that detects the presence of a human body passing through the automatic door by blocking the optical signal between the sender and the receiver near the automatic door A sensor is provided to open the door by the transmission signal from the signal transmitter, and the door open state is held until the detection signal is input from the safety sensor, and the detection signal from the safety sensor is held. It is characterized in that it is equipped with a controller for controlling the door opening / closing means so that the door open state is released by eliminating the input of.

[0009] Furthermore, a time counting means for timing a fixed time from the opening operation of the door is provided, and when the human body detection signal is not input from the safety sensor within the predetermined time from the opening of the door, the time counting means measures the time. It is preferable that the controller be provided with a function of controlling the door opening / closing means so as to release the opened state of the door upon completion.

[0010]

[Action]

 When the start switch is operated and turned on, the automatic door is opened, and the safety sensor detects a human body passing between the opened automatic doors and outputs a detection signal. As long as this detection signal is not output from the safety sensor, the automatic door is kept open, so even if a person walks slowly through the automatic door or stops near the opened automatic door, the door closed by the person You can prevent problems that are caught between them. When the human body passes through the door and the detection signal is no longer output from the safety sensor, the controller controls the automatic door to close at that point. Therefore, regardless of the moving speed of a person passing through the door, the automatic door is controlled to close when the human body finishes passing through the automatic door, and the problem that the human body is caught in the automatic door can be eliminated.

Further, if a human body detection signal is not input from the safety sensor within a certain time after the automatic door is opened, the automatic door is closed after a certain time has passed, and there is no intention of passing through the automatic door. However, if the start switch is operated by mischief, it is possible to prevent the inconvenience that the automatic door is kept open until the next time the human body passes through the automatic door.

[0012]

【Example】

 Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings. FIGS. 1 and 2 are a front view and a left side view of an essential part of an embodiment of the present invention. The schematic structure will be described with reference to these figures. And, it is movably supported by a door rail horizontally provided in the door engine case (2). As shown in FIG. 2, in the handle portions (3) on the opposite sides of the automatic door (1), as shown in FIG. 2, the adhesive substrate (4) adhered to the automatic door (1) and the adhesive substrate (4). ) Is provided with a mounting board (5) fixed by screws (not shown) and a case cover (7) elastically supported by a plurality of springs (6), and the mounting board (5) includes: The battery (8), the light emitting elements (9) and (10), and the start switch (not shown) that is turned on when the case cover (7) is pressed against the urging force of the spring (6) are arranged. In this embodiment, the handle (3) on the left side in FIG. 2 has a configuration having a function as a slave unit, and the handle (3) on the right side has a configuration as a master unit. Due to the example of the arrangement, the light-emitting element of the left handle (3) is attached to the right handle (3). 9) a light receiving element of the optical signal to receive light (11) is disposed from, will be described in detail later.

As shown in FIG. 2, a signal receiver (13) including a light receiving element (12) for receiving an optical signal from the light emitting element (10) and a light receiving portion (not shown) including an amplifier and the like is shown in FIG. , The light receiving element (12) is located so as to face the light emitting element (10) through a gap between the light receiving element (12) and the automatic door (1) in the door engine case (2), and is centered when viewed from the front as shown in FIG. This signal receiver (13) is electrically connected by a cable (15) to a controller (14) installed in an arbitrary space in the door engine case (2a). ..

A safety sensor (16) including a light projector (16a) and a light receiver (16b) is arranged near the automatic door (1), and the safety sensor (16) emits light. By detecting the presence of a human body passing through the automatic door (1) by blocking the optical signal between the device (16a) and the light receiver (16b), a detection signal is output. The signal is output to the controller (14).

FIG. 3 shows a block configuration of the above-described embodiment. In FIG. 3, the same parts as those in FIGS. 1 and 2 are designated by the same reference numerals, and a child of the handle portion (3) on the left side of FIG. When the case cover (7) of the signal transmitter (17) as a machine is pressed and the start switch (SW1) is turned on, the transmitter (18) drives the light emitting element (9) to emit light, and this optical signal is automatically output. The light is transmitted through the door (1) and is received by the light receiving element (11) of the signal transmitter (20) as a master unit, which is arranged in the handle (3) on the right side of the same. ) Is amplified and transmitted to the transmission unit (20), or the activation switch (SW2) of the signal transmitter (20) as the master unit is turned on, the transmission unit (20) emits light. The element (10) is driven to emit light, and an optical signal is transmitted. This light signal is received by the light receiving element (12) of the signal receiver (13) and amplified by the light receiving section (21), and the received signal is processed by the controller (14) to drive the relay and The engine drive unit (22) is driven to control opening / closing of the automatic door (1). The safety sensor (16) detects a human body or the like passing between the open automatic doors (1) and outputs a detection signal. Unless the detection signal is output after the automatic door (1) is opened by operating the start switches (SW1) and (SW2), the controller (14) keeps the automatic door (1) in the open state, and When the safety sensor (16) no longer outputs the detection signal after passing through the automatic door (1), the controller (14) controls the door engine drive unit (22) to close the automatic door (1) from that point on. To do.

The above operation will be described in detail with reference to the flowchart of FIG. 4 and the timing charts of FIGS. 5 and 6. 5A to 5D are timing charts corresponding to FIG. 7 when the human body walks slowly and passes through the automatic door, and FIGS. 6A to 6D are timing charts. FIG. 9 is a timing chart when the human body stops at a position near an opened automatic door, which is shown and shown corresponding to FIG. 8. FIG. The controller (14) receives the optical signal from the signal transmitter (20) by the signal receiver (13) and determines whether at least one of the start switches (SW1) and (SW2) is turned on. Then, it constantly monitors whether or not the reception signal is output (step S1). When the start switch (SW1) or (SW2) is turned on as shown in FIG. 5 (b) or FIG. 6 (b). The door engine drive (22) is operated to open the automatic door (1) (step S2).

Subsequently, it is determined whether or not the human body passes through the open automatic door (1) and the safety sensor (16) is in an on state, that is, whether or not a detection signal is output (step S3). When the safety sensor (16) is turned on by entering between the automatic doors (1), it waits for the safety sensor (16) to be turned off next (step S4). When the safety sensor (16) is turned off and the input of the detection signal is stopped, the controller (13) controls the door engine drive unit (22) to close the automatic door (1) (step S5).

As shown in FIG. 5A, when the human body walks slowly and passes through the automatic door (1), it is determined that the detection signal is not input from the safety sensor (16) in step S6 for a certain period of time. Unless determined, the automatic door (1) is kept open. The automatic door (1) is opened by a mischief even though it has no intention to pass through the automatic door (1) for a certain period of time as described above, and then the human body passes through the automatic door (1). It is set to prevent the continuation until, and is set to a comparatively long time in anticipation of the passing state as shown in FIG. 5 (a) or FIG. 6 (a). Therefore, when the automatic door (1) is passed at either speed of FIG. 5 (a) or FIG. 6 (a), the detection signal is not output from the safety sensor (16) so that the automatic door (1) is It is held in the open state, passes through this automatic door (1), moves to the position detected by the safety sensor (16), and the detection signal is output as shown in Fig. 5 (c) or 6 (c). When the output of the detection signal is stopped, the closing operation of the automatic door (1) is started as shown in FIG. 5 (c) or 6 (c). Therefore, it is controlled to close the automatic door (1) after detecting that the human body has finished passing through the automatic door (1) regardless of the moving speed of the person passing through the automatic door (1). It is possible to prevent the trouble from being caught in the door (1).

In the above embodiment, the case where the output of the detection signal of the safety sensor (16) is stopped and the automatic door (1) is controlled to be closed at the same time is illustrated. However, the detection signal of the safety sensor (16) is detected. The automatic door (1) may be closed after a certain delay time required for the human body to move to a safe position after the output is stopped.

[0020]

[Effect of the device]

 As described above, according to the automatic door opening / closing control device of the present invention, after the automatic door is opened by operating the start switch, the controller keeps the automatic door open unless the detection signal is output from the safety sensor. Since the automatic door is closed when this signal output is stopped after the detection signal is output from the sensor, the human body passes through the automatic door regardless of the moving speed of the person passing through the automatic door. It is possible to control the automatic doors to be closed when the operation is completed, and it is possible to prevent troubles such as people walking slowly or people who have stopped during automatic doors from being caught between the closing doors.

Further, as compared with the conventional device that does not close the automatic door until a certain set time elapses even after the human body quickly passes through the automatic door and the output of the detection signal from the safety sensor is stopped, The automatic door can be opened for the minimum necessary time that is sufficient to provide safety and security depending on the moving speed of the human body, and the time when the automatic door is opened is shortened as much as possible. be able to.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a sectional left side view of the same as above.

FIG. 3 is a block diagram showing the same as above.

FIG. 4 is a flowchart of the same.

FIG. 5 is a timing chart when the human body slowly passes through the automatic door.

FIG. 6 is a timing chart when the human body stops near the opened automatic door.

FIG. 7 is a timing chart when a human body slowly passes through an automatic door in a conventional device.

FIG. 8 is a timing chart when the human body stops in the vicinity of the opened automatic door.

[Explanation of symbols]

 1 Automatic Door 3 Handle 14 Controller 16 Safety Sensor 16a Emitter 16b Light Receiver 17 Signal Transmitter 20 Signal Transmitter 22 Door Engine Drive (door opening / closing means) SW1, SW2 Start Switch

Claims (2)

[Scope of utility model registration request] 1. A signal is transmitted from a signal transmitter disposed on the handle by operating a start switch provided on the handle of the automatic door by touching it to activate the door. In the automatic door opening and closing control device that can be opened, a safety sensor that detects the presence of a human body passing through the automatic door by blocking the optical signal between the sender and the receiver is provided near the automatic door. The door is opened by the transmission signal from the signal transmitter, and the door open state is maintained until the human body detection signal is input from the safety sensor, and the detection signal is input from the safety sensor. An automatic door opening / closing control device comprising a controller for controlling the door opening / closing means so as to release the door open state when the door is removed. 2. A time counting means for timing a fixed time from the opening operation of the door is provided, and when the human body detection signal is not input from the safety sensor within the constant time from the opening of the door, the time counting means completes the time counting. The automatic door opening / closing control device according to claim 1, wherein the controller is additionally provided with a function of controlling the door opening / closing means so as to release the opened state of the door.