JP4195317B2 - Automatic door control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic door control device.
[0002]
[Prior art]
Conventionally, as a method for opening and closing an automatic door, sensors for detecting a human body are provided on both sides of the automatic door, and when this sensor detects a human body, the automatic door is opened (Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-197634
[Problems to be solved by the invention]
As described above, when a human body is detected by a sensor and an automatic door is opened, there are the following problems.
[0005]
That is, humans who use automatic doors have various walking speeds, such as a person who rushes to run or an elderly person who walks slowly. On the other hand, the opening speed of the automatic door is set when the door is constructed, and the opening speed cannot be changed during the operation.
[0006]
Therefore, in the case of a person who rushes to run as described above, there is a problem that it hits an automatic door that is still open.
[0007]
On the other hand, elderly people who walk slowly have a time lag such as passing after a while after the automatic door is fully opened, and the amount of temperature change in the room becomes large when the room is cooled or heated There is a problem.
[0008]
In view of the above problems, the present invention provides an automatic door control device that can change the opening speed of an automatic door in accordance with the walking speed of a person.
[0009]
[Means for Solving the Problems]
The invention of claim 1 is provided with a first sensor and a second sensor for detecting a person on at least one side of the automatic door opening and closing Ri by the speed controllable motor, a said second sensor from the automatic door [M] is provided apart from the second sensor by b [m], and a time t from when the first sensor detects a person to when the second sensor detects the person is set. A measuring means for measuring is provided, and a walking speed calculating means for calculating the walking speed V of the person from the measurement times t and b [m] is provided, and the opening speed of the automatic door is increased as the calculated walking speed V is higher. in the control apparatus for an automatic door, characterized in that the digits setting switching means for controlling the speed of said motor so as to quickly, the switching means, the first sensor, and, without passing through both of said second sensor, When a person is detected by only one of them A control apparatus for an automatic door, characterized in that for opening and closing of the automatic door at a predetermined standard door opening speed.
[0010]
The invention according to claim 2 is the control device for an automatic door according to claim 1, wherein the first sensor and the second sensor are provided on both sides of the automatic door, respectively.
[0012]
The invention according to claim 3 is the automatic door control device according to claim 1 or 2 , wherein the motor is a brushless DC motor, and the rotational speed of the brushless DC motor is inverter-controlled.
[0013]
[Operation]
In the first and second aspects of the invention, the walking speed calculation means calculates the walking speed V of the person from the measurement times t and b. The opening / closing means changes the opening speed of the automatic door based on the calculated walking speed V, and the faster the walking speed V, the faster the opening speed of the automatic door. The door opening speed can be changed according to the speed.
[0014]
When a person is detected by only one of the first sensor and the second sensor, the automatic door can be opened and closed smoothly by opening and closing the automatic door at a predetermined standard opening speed. it can.
[0015]
According to the invention of claim 3 , the opening speed of the automatic door can be accurately controlled by inverter-controlling the brushless DC motor.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 3.
[0017]
FIG. 1 is a schematic plan view of an automatic door device 10 according to the present embodiment, and FIG. 2 is a block diagram of the automatic door device 10.
[0018]
As shown in FIG. 1, the automatic door 12 of the automatic door device 10 is provided at the entrance of the building 14, and when the automatic door 12 is opened, the automatic door 12 moves outward and is in an open state. Become.
[0019]
The automatic door 12 is configured such that when a brushless DC motor (hereinafter simply referred to as a motor) 16 is rotated, a belt is moved along with the rotation, and the automatic door 12 is moved by the moving belt. The motor 16 is driven and controlled by a motor driving device 18 composed of an inverter circuit. Specifically, the rotation direction of the motor 16 is changed to the forward direction or the reverse direction according to an instruction from the motor driving device 18 and the rotation speed is controlled. When the motor 16 rotates in the forward direction, the automatic door 12 moves in the opening direction, and when it rotates in the reverse direction, it moves in the closing direction. The door opening speed and the door closing speed are proportional to the rotation speed of the motor 16.
[0020]
An indoor second sensor 20 is provided on the indoor side of the building 14 at a position away from the automatic door 12 by a [m] (for example, a = 0.1 m). The indoor second sensor 20 is composed of an optical sensor. When a human body passes, the photosensor for light reception in the indoor second sensor 20 reacts to detect the human body.
[0021]
The indoor first sensor 22 is provided at a position away from the indoor second sensor 20 by b [m] (for example, b = 0.5 m), that is, at a position away from the automatic door 12 by (a + b) [m]. ing. The structure of the indoor first sensor 22 is the same as that of the indoor second sensor 20. The two indoor first sensors 22 and the indoor second sensor 20 are embedded in the ceiling of the building 14.
[0022]
On the other hand, two sensors are also provided outside the building 14. That is, the outdoor second sensor 24 is provided outside the building 14 at a position away from the automatic door 12 by a [m].
[0023]
Further, the outdoor first sensor 26 is provided at a position away from the outdoor second sensor 24 by b [m], that is, at a position (a + b) [m] away from the automatic door 12. Both of these sensors 24 and 26 have the same structure as the indoor second sensor 20 and are embedded in the ceiling of the entrance that projects outward from the entrance of the building 14.
[0024]
As shown in FIG. 2, the indoor first sensor 22, the indoor second sensor 20, the outdoor first sensor 26, the outdoor second sensor 24, and the motor driving device 18 are connected to a control unit 28 that includes a microcomputer of the automatic door 10. ing.
[0025]
Next, the control method of this automatic door apparatus 10 is demonstrated based on the flowchart of FIG.
[0026]
First, a state where a person tries to enter the building 14 through the automatic door 12 will be described.
[0027]
In step 1, it is determined whether or not the outdoor first sensor 26 has detected a human body. If not detected, the process proceeds to step 3 and if detected, the process proceeds to step 2.
[0028]
In Step 2, since the outdoor first sensor 26 has detected a human body, the time counter built in the control unit 28 is started. Then, the process proceeds to Step 3.
[0029]
In step 3, it is determined whether or not the outdoor second sensor 24 has detected a human body. If the outdoor second sensor 24 has not detected a human body, the control for opening the automatic door 12 is stopped. On the other hand, when the outdoor second sensor 24 detects a human body, the process proceeds to step 4.
[0030]
In step 4, the time counter of the control unit 28 is stopped. Then, the process proceeds to Step 5.
[0031]
In Step 5, when both the outdoor first sensor 26 and the outdoor second sensor 24 are detecting a human body, the process proceeds to Step 6, and when only the outdoor second sensor 24 is detecting a human body, Step 8 is performed. Proceed to
[0032]
In step 6, since both the outdoor first sensor 26 and the outdoor second sensor 24 detect the human body, the measurement time t measured by the time counter, the outdoor first sensor 26, and the outdoor second sensor 24 are attached. The walking speed V of the human body is calculated from the distance b [m]. Specifically, V = b / t. Then, the process proceeds to Step 7.
[0033]
In step 7, the opening speed of the automatic door 12 is set based on the calculated walking speed V. Specifically, the faster the walking speed V, the faster the door opening speed VD. As a relational expression thereof, for example, VD = k1 × V + k2. However, k1 and k2 are coefficients. By this relational expression, the door opening speed VD proportional to the walking speed V can be obtained.
[0034]
In step 8, since the human body is detected only by the second outdoor sensor 24, the walking speed V cannot be calculated. Therefore, the opening speed of the automatic door 12 is set to the preset standard speed VD0.
[0035]
In step 9, the automatic door 12 is opened at the door opening speed VD or the standard speed VD0 set in step 7. Thereafter, the automatic door 12 is closed after a predetermined time, and this control is finished.
[0036]
Further, even when a person goes out from the inside of the building 14 through the automatic door 12, the walking speed V is calculated using the first indoor sensor 22 and the second indoor sensor 20 in the same manner as described above, and the automatic door 12. Open and close.
[0037]
In the case of the automatic door device 10 described above, since the opening speed of the automatic door 12 is set according to the walking speed V, the automatic door 12 enters a door opening state at a high speed in the case of a person who rushes, The person who runs can be prevented from hitting the automatic door 12.
[0038]
On the other hand, in the case of a person walking slowly such as an elderly person, the automatic door 12 opens slowly, so even if the interior of the building 14 is cooled or heated, the automatic door 12 opens slowly and the temperature changes suddenly. There is nothing.
[0039]
Further, when the walking speed V cannot be calculated, the door is opened at the standard speed VD0, so that the operation can be performed smoothly.
[0040]
(Modification 1)
In the automatic door device 10 of the above embodiment, the belt is moved by the brushless DC motor and the automatic door 12 is moved so as to be in the open / closed state, but a linear motor may be used instead.
[0041]
(Modification 2)
In the above embodiment, two sensors are provided on both sides of the automatic door 12, but instead of this, only one sensor is provided with two sensors, and the other sensor is configured to detect a human body with one sensor as in the past, or with a switch. The automatic door 12 may be opened.
[0042]
【The invention's effect】
As described above, with the automatic door control device of the present invention, a person who approaches the automatic door early can open the automatic door quickly, and a person who approaches slowly can open slowly, so that the person may hit the automatic door or automatically The open state of the door becomes long, and the amount of temperature change in the room does not become abrupt.
[Brief description of the drawings]
FIG. 1 is a plan view showing a configuration of an automatic door device according to an embodiment of the present invention.
FIG. 2 is a block diagram of an automatic door device.
FIG. 3 is a flowchart showing a control state of the automatic door device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Automatic door apparatus 12 Automatic door 14 Building 16 Motor 18 Motor drive apparatus 20 Indoor 2nd sensor 22 Indoor 1st sensor 24 Outdoor 2nd sensor 26 Outdoor 1st sensor 28 Control part

Claims (3)

A first sensor and a second sensor for detecting a person on at least one side of the automatic door opening and closing Ri by the speed controllable motor is provided,
The second sensor is provided a [m] away from the automatic door,
The first sensor is provided b [m] away from the second sensor;
A measuring means for measuring a time t from when the first sensor detects a person until the second sensor detects a person;
A walking speed calculating means for calculating a walking speed V of the person from the measurement time t and b [m] is provided;
In the control apparatus for an automatic door, characterized in that the switching means for controlling the speed of said motor digits set as the walking speed V, the calculation is faster door opening speed of the automatic door as fast,
The opening / closing means includes
When a person is detected without passing through both the first sensor and the second sensor, the automatic door is opened and closed at a predetermined standard opening speed. Automatic door control device to do. 2. The automatic door control device according to claim 1, wherein the first sensor and the second sensor are provided on both sides of the automatic door, respectively. 3. The automatic door control device according to claim 1, wherein the motor is a brushless DC motor, and the rotation speed of the brushless DC motor is controlled by an inverter. 4.

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