JPS5873677A - Method and apparatus for opening and closing control of automatic door - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] This invention eliminates waste and opens the door efficiently by predicting the time it will take for the object passing through the automatic Jj% to reach the door and determining the timing to fully open the door. The present invention relates to a method and device for controlling the opening and closing of automatic doors.

As shown in 1111, the effectiveness of indoor air conditioning tends to be wasted due to the outside air entering the room through the entrance and exit, and this waste is especially large when air conditioning is used, so if an automatic door is installed at the entrance. However, the detection switch must be constructed so as not to wastefully release the KfVt opening before a passing object such as a person reaches the door. To achieve this, the detection switch should not issue a signal to open n until a passing object comes directly in front of the door.For example, the length of the mud switch installed before and after the door may be shortened. By narrowing the detection range using ceiling switches or radio waves, there is no need to worry about the door opening too early and causing waste. However, since it takes a considerable amount of time for the door to open wide enough to accommodate the passage of objects, it takes a considerable amount of time after the door starts opening once the detection switch is reliable.
Do 6 moves with a quick 1 or fast movement speed. Place. (ti J
% (D'=ih) As a result of having to wait for up to 4 to 5 months, not only did the efficiency of passage deteriorate, but there was also the risk of causing discomfort in the case of people passing by.

This invention was made in view of the above circumstances, and it predicts the entire time it will take for a vehicle passing through an automatic door to reach the door, and calculates whether the vehicle is moving quickly or slowly. By starting to open the door at a constant time so that when the door is reached, the door is opened wide enough for the object passing through, the object passing through is forced to wait in front of the door. It is an object of the present invention to provide an automatic door Ω opening/closing control method and device that can prevent the wastage of air conditioning effects to the maximum extent without impairing the efficiency of traffic.

Embodiments of the invention will be described based on the drawings.

In the automatic door opening/closing control method of the present invention, as a first step, the distance #It from a predetermined position in front of the door to the door is divided by the passing speed of the self-portrait or object passing through the door. □ , : □ until reaching the door from the specified position.

Find the arrival time of . The predetermined position is a position on the path provided in front of the door through which a pedestrian passes through when attempting to pass through the automatic door.The distance from this predetermined position to the door is set to an appropriate length in advance. There is. The speed of traffic is detected by a speed detection device. By determining the arrival time in this way, when it is detected that a passing object has passed a predetermined position, it is possible to predict when the passing object will reach the door. Next, as the second step, what is the predetermined time required from when the door begins to open until the door opens to a width that allows the object to pass through? Subtract this arrival time and use this as the door opening waiting time.0The time required for the door to open to a width that allows the object to pass through after the door begins to open is determined by the nature of the object passing through the door. Since it is determined for each self-am depending on the speed of movement of the door when it opens, it is calculated and set in advance. Then, in the third step, the automatic door opening/closing control is performed by controlling the door drive device so that the door starts opening when the door opening standby time has elapsed after the object passing through the predetermined position. A passing body.

Predetermined position t['! A detection switch detects that the vehicle has passed. If you start opening the door in this way, as long as the traffic speed does not change, 1 & 4111 will occur when the object reaches the door.
The invention of a device used to implement the automatic door opening/closing control method of the present invention is based on the block diagram of FIG. explain. The door opening/closing control device of the present invention includes a speed detection device 1, a calculation circuit 2, and a timing control device 5 that receives signals from a detection switch 3 and controls a drive device 4.

The speed detection device 1 is a device that detects the speed of a vehicle passing toward the door.It is determined by "clocking the time required for the vehicle passing through a predetermined section. It is also possible to detect this by a method such as reflection.The traffic speed detected in this way is used to predict the time it takes for a passing body to reach the door, so this prediction is In order to reduce deviations, it is desirable that the speed detection device l detects the traffic speed as close to a predetermined position set in front of the door as possible.Data on the detected traffic speed is sent to the arithmetic circuit 2.Arithmetic circuit 2 calculates the arrival time data by dividing the distance data from the predetermined position to the door by this traffic speed data, and calculates the arrival time data from the time the door begins to open until the door opens to a width that allows passing objects to pass through. This is a circuit that calculates data on the door opening waiting time to be sent to the timing control device 5 by subtracting the data on the time required to reach the door from the data on the arrival time. Q ICJi! Data on the time required to fully open the vehicle is stored in advance in the arithmetic circuit 2.The detection switch 3 detects that a body passing through a predetermined position and controls the timing. It emits a signal to the device 5, and a photoelectric switch or the like is used.The timing control device f5 sets the n-open standby time data sent from the arithmetic circuit 2, and when the signal is sent from the detection switch 3. This is a device that controls the drive device 4 so that when the door arrives, it starts counting the set door opening waiting time, and when this timing ends, the door begins to open.Drive device 4
is a motor, air cylinder, etc. that drives 1%, and is controlled by the timing device 5 to start driving the door.・・・
□゛...The automatic door opening/closing control according to the present invention will be explained with reference to FIGS. 2 and 3. Regarding the own IPIJ%, as shown in Figure 2, one m6 is equipped with a single-pull automatic door that opens and closes by moving in the left and right direction of the aisle 7. Mud switch that is detected by riding on the vehicle 3. "15° is installed on the passage 7 before and after the door 6, and a photoelectric switch 14 is installed on the passage 7 at the position where the door 6 opens and closes, and a photoelectric switch 14 is installed to detect the presence of a passing body 8 at the opening of the door 6. ' These switches 13, 14. are used as safety switches to prevent the passing body 8 from unexpectedly assisting and getting caught by the door 6.
15 detects a passing object 8, the door 6 is controlled to open regardless of commands from other control devices. The speed detection device l is located in front of door 60 (on the left side of the drawing)
Two photoelectric switches 11, 12 and a timer A (not shown) are provided on the passage 7 with a predetermined detection distance [,].
It is composed of Further, the light switch 12 on the side closer to the door 6 is provided at a predetermined position 1111 distance (by λ) from the door 6, and also serves as the detection switch 3. Furthermore, on the opposite side of the passage 7 with #6 in between, a photoelectric switch 16 is installed at a position a predetermined distance]2 away from the door 6, similar to the photoelectric switches 11 and 12, and a photoelectric switch 16 is installed at a position further away from the door 6 by a detection distance of 11. A photoelectric switch 17 is provided.

A case in which the passing object 8 passes through such an automatic door will be explained with reference to the time chart of FIG. 3. When a passing object 8 moves toward the door 6 from the front of the passage 7, the photoelectric switch 11 first detects this passing object 8 and starts timer A. Next, the conducting object 8 is detected. When the photoelectric switch 12 detects all of this after moving a distance ht, the timer A finishes counting and sends the measured passage time t1 to the calculation circuit 2.The calculation circuit 2 calculates the time from this passage time t1 until reaching the door. Find the arrival time tzk and calculate the door open waiting time tak0
It can be determined by calculating the arrival time txti, tz=(lx/LI)tt. Note that the arithmetic circuit 2 calculates the arrival time tλ by dividing the predetermined distance Lzt by the traffic speed V, but the traffic speed V is 1°==L/t.

and arrival time t2. is, tz= It / v = (L!/b n t
Therefore, the ratio (lx/11) of the preset detection pressure *It and the predetermined distance 1z is stored in the arithmetic circuit 2, and the opening upon arrival tzk is calculated from the product of this and the travel time t1. The same thing will happen, so let the traffic time t1 be the traffic speed V
Direct reception is included as data for 0 door open waiting time ti
is the opening cost time T, which is the time required from when the door 6 begins to open to when the door 6 is opened to a width that allows the object 8 to pass through.
d is calculated by calculating tB=tx Td. Since these calculations can be performed instantaneously, as soon as the optical '4 switch 12, which also serves as the detection switch 3, detects the passing body 8, the timer B starts counting the door open standby time t. This timer B is a clock device t''? provided in the clock control device 5. When the door opening standby time t3 has been counted, the timing control device 5 controls the drive device 4 to start opening the door 61.In addition, in this door, the external movement of the passing body B force is controlled by the timing control device 5. In such a case,
Jj! If the command to open the door 6 is still issued, the door 6 cannot be closed, so the solution is to cancel the command to open the door 6. This means that even if the expected door opening duration has elapsed after the door 6 begins to open and the object 8 reaches the front mud switch 13 - and if the mud switch 13 does not detect the object 8 - 1 Control is performed to cancel the command to open the door 6 and close the door 6. This door open duration 1. / Assuming that the distance M from the front end of the mud switch 13 to the door is the mat distance ml, and the time to be added in consideration of prediction errors as the margin time Ta, the arithmetic circuit 2 calculates t+=Td (13'/h ) t+
Calculated by calculating +Ta. <ls/
It Nott is the mat distance Is at the passing speed V of the passerby 8
This is the time required to jm ja. Then, when timer B7j--door opening time t3 finishes counting and n6 starts to open, timer C starts timing the door opening standby time,
Door 1□N: 6. ．． l:41. The command surrounding 'J! have, do

When the passerby 8 reaches the mud switch 13 as predicted,
The command to open the door 6 is detected from the mud switch 13 (L4
Door 6 will continue to open even after this timing ends. When the passer 8 reaches the door 6 in this way, the door 6 opens wide enough to allow it to pass through.
Passers-by can pass through without waiting and proceed to the opposite side of the passageway 70. At this time, the door 6 continues to open as long as the photoelectric switch 14 or the Hamatsuto Suite F-15 or the passing body 8 is detected, and the door 6 continues to be opened.
(However, for safety, we set a certain door open state time, and even if the mud switch 15 or the passing object 8 is no longer detected, the JFi
Without closing I6, use timer D to set the door open state time To.
i The door 6 is closed when the timing is finished. In addition, the photoelectric switches 16 and 17 will sequentially detect the objects passing through the door, and when the photoelectric switch 17 detects the objects, the timer E measures the reverse direction release time Tc. However, the photoelectric switch 16 does not detect the object 8 by the time this timing ends), so the control device determines that the object 8 is moving in the opposite direction of the door 6. In other words, this photoelectric switch 16.17 plays the same role as the photoelectric switch 11.12 for the object 8 traveling in the opposite direction, so the photoelectric switch 17
! When the timer E or other timer, which plays the same role as timer A, starts counting when the object 8 that has passed through the warehouse is detected, in order to prevent the timer from continuing until this timer or another object 8 is detected, Set a reverse direction release time Tc that is long enough for the object 8 to pass through the detection distance l@lt, and finish timing this time.By the way, if the photoelectric switch 16 does not detect the object 8, the control device will restart the This is a standby state (to return to the state).
The timing is also activated when the photoelectric switch 11 detects the object 8 passing through.In addition, if this automatic door is used for one-way traffic, there is no need to provide the photoelectric switch 16.17. If the speed (2) is fast and the door opening standby time t is less than zero (t<Td), it will not be in time, so the door 6 is controlled to start opening as soon as the photoelectric switch 12 detects it. In addition, the traffic speed v of traffic 1+ and 8 is slow, and the traffic body 8 is mat distance (
, if the time required for the entire passage ((J/v) is longer, the mud switch 13 detects +rA%'i and the door 6 starts to open until the door opening standby time t is finished. Therefore, the control of the present invention is performed only when the traffic time is .

As explained above, the present invention can prevent passengers from waiting in front of the passer 8 or the door 6, which reduces the efficiency of passage, and can prevent waste of air conditioning effects to the utmost. In addition, if the speed detection device 1 or the detection switch 3 detects a passing body 8 heading towards the door 6 when the door 6 is not in a completely closed state, the door 6 is closed without waiting for the elapse of the door open standby time t3. If you open it, you can prevent unnecessary opening/closing work.

[Brief Description of the Drawings] Fig. 1 is a block diagram of the automatic door opening/closing control device of the present invention, Fig. 2 is a plan view of an automatic door implementing the present invention, and Fig. 1 is also a block diagram of the automatic door opening/closing control device of the present invention. Time charts for explaining opening/closing control are shown. 1. Speed detection device, 2. Arithmetic circuit, 3. Detection switch,
4... Drive device, 5. Timing control device, 6 Door, 8... Passage object, 11.12.16.17 Photoelectric switch, L,
...detection distance, [yo...predetermined distance, t...traffic time, t...arrival time, t door opening waiting time, Td opening time, ■...traffic speed 0 Patent applicant Nippon Air Brake Agent Watanabe 1, Mihiko Co., Ltd.

Claims (1)

[Claims] 1. Divide the □ distance from a predetermined position in front of the door to the door by the passing speed of a passing object similar to the door. From K, the arrival time for a passing object to reach the door from a predetermined position. Subtract the predetermined time from when the door begins to open until the door fully opens to a width that a passing object can pass from this arrival time, and use this as the door opening waiting time, and let the passing object pass the specified position. A door opening/closing control method 02 for controlling a door driving device so that the door starts to open when the door opening standby time has elapsed, a speed detection device a for detecting the traffic speed Kk of a passing object, and a speed detection device a for detecting the traffic speed Kk of a passing object Divide the distance from a given position to the door by this traffic speed to find the time it takes for a passing body to reach the door from a given position.Open the door to a width that allows the passing body to pass through after the door begins to open. an arithmetic circuit that subtracts a predetermined time required to reach the door from the arrival time and calculates this as the door opening waiting time; a detection switch that detects when a passing object has passed a predetermined position; The automatic JII opening/closing control device consists of a timing control device that starts counting the door opening waiting time calculated by the arithmetic circuit when passing is detected, and controls the door drive device so that the door begins to open when this timing ends.8 , A photoelectric switch is installed at a predetermined position in front of the t switch and used as a detection switch, and a photoelectric switch is also installed at a position further away from the door by a certain detection distance from the t switch, and these two photoelectric switches An opening/closing control device for an IJJFI as set forth in claim 2, wherein the speed detection device is a device for detecting a traffic speed by measuring the time required for a passing body to pass between the spaces.