JPH0158305B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for controlling the drive of an automatic door having a drive device capable of controlling the degree of opening of an entrance/exit door.

Conventional automatic door drive control methods issue an opening command to the drive device when either an internal detection switch installed on the inside of the door or an external detection switch installed on the outside of the door detects a passing object. The door is now fully open. However, with this conventional control method, even if the area near the door is crowded and the door needs to be opened wide, or conversely, there is only one passerby and the door can be opened narrowly, There is only one type of opening command, so when a passing object is detected, the door is always fully opened to a preset opening degree. For this reason, for example, in large automatic doors with a full opening stroke installed at the entrances and exits of buildings with large frontages, the door opens fully even when there is only one passerby, opening more than necessary. This resulted in air conditioning loss, which was not desirable for energy conservation.

This invention was made in view of the above circumstances, and when the area near the door is crowded and there are many pedestrians passing through the doorway, the opening of the door is widened to make it easier for people to pass through. An object of the present invention is to provide a drive control method for an automatic door that prevents air conditioning loss by reducing the degree of opening of the door when there are few objects passing through the door.

The feature of this invention for achieving this purpose is that each detection signal of the inside detection switch and the outside detection switch is unique, so that only one of the detection switches detects a passing object. The system determines whether the door is being opened or whether both are being detected at the same time, and then sends open signals for different opening degrees to the control circuit that controls the drive device to adjust the door opening to the appropriate opening degree as required. The drive is controlled at the same time.

A specific control method of the present invention will be explained below based on the drawings.

In FIG. 1, two automatic doors 1a and 1b installed at the entrance of a building are driven by a drive device (not shown) in the door 7 to move away from each other to open the entrance. , conversely, move in the direction of approaching each other and close the entrance/exit. These two doors 1a,
An inner detection switch 2 consisting of a floor mat or the like for detecting objects passing through is provided inside the building than 1b, and an outside detection switch 3 consisting of a floor mat or the like for detecting objects passing through is provided on the outside thereof. is provided. Furthermore, in response to the operation of the door 1a, a closed position detection limit switch 4 detects when the door 1a is in the fully closed position, and the door 1a has reached a predetermined opening position smaller than the preset fully open position. A predetermined opening position detection limit switch 5 for detecting this, and a fully open position detection limit switch 6 for detecting when the door 1a has reached a preset fully open position are installed in a blind 7 fixed to the building. It is being
In this embodiment, the three types of limit switches mentioned above are installed on the door 1a, but they can also be installed on the door 1b, or both the doors 1a and 1b, and each detection signal from the doors 1a and 1b is For example, in the case of a belt drive system, limit switches installed at positions corresponding to fully open, fully closed, and predetermined opening positions are activated by metal fittings attached to the belt. Various methods such as position detection are possible, and each position may be detected using a method suitable for each automatic door.

FIG. 2 is a block diagram of the present invention which sends a door operation signal based on the detection signals of each detection switch and each detection limit switch described above to the control circuit that controls the automatic door drive device 16. 10 is the same OR circuit into which the detection signal of the inner detection switch 2 and the detection signal of the outer detection switch 3 are input.
It is an AND circuit. The output of the OR circuit 9 is the first signal 1
1 to the control circuit 12, while the output of the AND circuit 10 passes through the set time circuit 13 and is then sent to the control circuit 12 as a second signal. AND
When the output of the circuit 10 continues for a set time or longer, the output is sent to the control circuit 12 as a second signal 14, and this set time circuit 13
When a passing object moves from the position of the inside detection switch 2 to the position of the outside detection switch 3, both switches 2 and 3 may momentarily enter the detection state at the same time.
At this time, the door operation signal sent to the control circuit 12 is held for a predetermined time so that it does not become the second signal 14 immediately. If a setting time variable device 15 is installed in this setting time circuit 13 so that the setting time can be varied depending on the location where the automatic door is installed and the season, it will be possible to cope with various situations and be convenient for use. Become. 12 is a control circuit that receives the first signal and the second signal and controls the drive of the automatic door drive device 16, as described above, and the control circuit 12 receives the first signal 1
1, the door 1a, as shown in Figure 3,
1b reaches a predetermined opening position smaller than a predetermined full open position, and the predetermined opening position detection limit switch 5 is activated.
The drive device 16 is driven to open until it receives the second detection signal, and then the drive is stopped. On the other hand, when the second signal 14 is received, the doors 1a and 1b reach the fully open position as shown in FIG. 4, and the fully open position is detected. limit switch 6
The circuit configuration is such that the drive device 16 is driven open until it receives a detection signal of , and then stops driving. In addition, for the first signal 11 and the second signal 14, the OR circuit 9 that outputs each and the AND
Due to the nature of the circuit 10, all second signals also serve as first signals, so when the second signal 14 is received in the control circuit 12, the second signal 14 is always given priority over the first signal 11. Contains circuit. Next, when the doors 1a and 1b are stopped at the predetermined opening position, and when the doors 1a and 1b are stopped at the fully open position, both the inside detection switch 2 and the outside detection switch 3 detect objects passing through. When it is no longer detected, that is, the first signal 11 has disappeared, and at this time, the second signal 14 naturally also disappears. Therefore, after a certain period of time after the first signal 11 disappears, the doors 1a and 1b are activated by the drive device 16. As shown in FIG. 5, when the doors 1a and 1b are completely closed and the control circuit 12 receives the detection signal from the closed position detection limit switch 4, the closing drive of the drive device 16 stops. Even if the doors 1a and 1b are stopped at the fully open position, the drive device 16 is configured not to drive the doors 1a and 1b closed unless the first signal 11 disappears, so that the doors 1a and 1b move from the fully open position in the closing direction to a predetermined position. Although it does not stop at the open position, this is to avoid giving a sense of fear to passers-by as the doors 1a and 1b begin to close, and in order to thoroughly implement this idea, the control circuit 12 is A storage unit for the fully open state is provided, and once the door is in the fully open position, it has a fully open holding function that keeps the door in the fully open position as long as the signals (first and second signals) are input. and doors 1a and 1 from the fully open position.
During the closing movement of b, the first signal 11 and the second signal 1
4 enters the control circuit 12, it is also possible to unconditionally drive the opening toward the fully open position.

Next, the above-mentioned operations for several traffic patterns are explained as follows: the moving time of the door from the closed position to the predetermined open position, the moving time of the door from the predetermined open position to the fully open position, and the door in each reverse case. To, the travel time of
Let the door movement time from the closed position to the fully open position and vice versa be 2To, and AND circuit 1
T ₁ is the set time in the set time circuit 13 provided until the output of 0 is sent as the second signal to the control circuit 12, and T is the fixed time until the drive device 16 starts closing drive after the first signal 11 disappears. I will check it as ₂ .

When the traffic body A passes through the automatic door installed at the entrance from the inside of the building to the outside, that is, the 6th
In the case of one-way traffic in the figure, first, the passing body A is detected by the inside detection switch 2, and at the same time, the first signal 11 is sent through the OR circuit 9 as a door activation signal.
is sent to the control circuit 12, and the drive device 16 starts opening drive. After the time To, the doors 1a and 1b reach the predetermined opening position, and when the predetermined opening position is detected by the limit switch 5, the drive device 16 stops. Passage body A
is then detected by the outside detection switch 3, but before being detected by the outside detection switch, there is a blank period during which it is not detected by either the inside or outside detection switch.
Even if T ₂₁ (that is, the moment when the inside detection switch 2 moves to the outside detection switch 3) exists, if T ₂₁ < T ₂ , the door state is maintained at the predetermined opening position, and then the outside detection switch is moved. 1st signal 1 again due to detection
Since 1 is rolled, there is no change in the door state. When the passing body A passes by and both the inside and outside detection switches are no longer in the detection state, the first signal 11 disappears, and if this time is t ₁ , then at time t ₂ = t ₁ + t ₂ , the drive device 16 starts the closing drive. When the start time reaches t ₃ =t ₂ +To, the doors 1a and 1b are fully closed, and when detected by the closed position detection limit switch 4, the drive device 16 stops the closing drive.

Similarly to the above case, when the object B passes through the automatic door from the inside of the building to the outside, the object B passes between the inside detection switch 2 and the outside detection switch for time T ₁₁ as in the one-way traffic in Figure 6. If T ₁₁ < T ₁ , the door activation signal is set to Since the first signal 11 is maintained without changing to signal 14, door 1 is closed while object B passes through.
a and 1b are only in the predetermined opening position as in the case of one-way traffic.

Next, to explain the _two -way traffic in FIG. Assuming that a passing object D starts passing through the automatic door from the outside to the inside at time _t5 , when the passing object C is first detected by the inside detection switch 2, the first signal 11 is outputted through the OR circuit 9. The drive device 16 starts the opening drive and the doors 1a, 1 open.
b begins to open. After time To, the doors 1a and 1b reach the predetermined opening position, and the drive device 16 is stopped by the detection signal from the predetermined opening position detection limit switch 5, but at time _t5 , a passing object D is detected by the outside detection switch 3. Since both the inside detection switch 2 and the outside detection switch 3 are in the detection state, the AND circuit 10 outputs an output, and if this output continues for the set time T ₁ of the set time circuit 13, the time t ₆ = t ₅ + T ₁ is reached. The second signal 16 is sent to the control circuit 12, the drive device 16 starts the opening drive again, and the doors 1a and 1b begin to open toward the fully open position. At time t ₇ = t ₆ +To, the doors 1a and 1b are fully opened. When the fully open position detection limit switch 6 detects this, the opening drive is stopped. The doors 1a and 1b are in the fully open position at time t8, at time _t9 , which is a _{time T2} after the passing object D has passed and neither the inside detection switch 2 nor the outside detection switch 3 detects the passing object. = _t8 + _T2
The driving device 16 starts the closing drive at the time t ₉ and stops the closing drive when the doors 1a and 1b are fully closed at the time t ₁₀ = t ₉ +2To and the closed position detection limit switch 4 detects this. .

To explain the continuous traffic in Figure 6 as a subsequent traffic pattern, first the traffic body E
At t ₁₁ , the object E begins to pass through the automatic door from the inside to the outside, and at time t ₁₂ , during which the object E is detected by the inside detection switch 2, the object F also begins to pass through the automatic door from the inside to the outside. In this case, when the passing body E is detected by the inside detection switch 2, the first signal 11 is outputted through the OR circuit and the drive device 16 starts to open. After time To, when the doors 1a and 1b reach the predetermined closed position and are detected by the predetermined open position detection limit switch 5, the opening drive stops and the doors 1a and 1b are maintained at the predetermined open position, but at time _t13 . When the passing body F is detected at the inside detection position 2, the passing body E is still detected by the outside detection switch 3, so the AND circuit 10 outputs an output, and if this output continues for a period of time _T1 , the time At t ₁₄ = t ₁₃ +T ₁ , the drive device 16 starts to drive the door open, and at time t ₁₅ = t ₁₄ +To, the door reaches the fully open position and is detected by the full open position detection limit switch 6, and the opening drive stops, and the doors 1a, 1b is maintained in the fully open position. When the object F passes through the automatic door at time t ₁₆ , both the inside detection switch 2 and the outside detection switch 3 become in a state where they do not detect the object, and the first signal no longer exists, so at time t ₁₇ = t ₁₆
At +T ₂ , the drive device 16 starts closing drive, and at time t ₁₈ = t ₇
At +2To, the doors 1a and 1b are fully closed, detected by the closed position detection limit switch 4, and the closing drive is stopped.

As described above, according to the automatic door control method of the present invention, when one object passes through the automatic door from the inside to the outside of the building, the opening of the two doors 1a and 1b of the automatic door is controlled. The opening degree can be controlled to a predetermined opening degree, which is smaller than full opening, which prevents air conditioning loss and saves energy compared to conventional automatic doors that open fully even in such cases. can be achieved. This is explained in exactly the same way when a single object passes from the outside to the inside of a building, when it makes a U-turn before passing through an automatic door, or when it makes a U-turn after passing through an automatic door. When a single passing object passes through the automatic door according to the present invention, both the inside detection switch 2 and the outside detection switch 3 are set to the detection state at the same time for more than the set time T ₁ of the set time circuit 13. Unless there is a special situation that does not occur under normal traffic conditions, the doors 1a and 1b will remain at a predetermined opening position and will not be fully opened. Conversely, when multiple pedestrians pass through an automatic door from opposite sides, or when multiple vehicles pass through an automatic door in the same direction consecutively within a certain period of time, automatic When the area near the door becomes crowded, the two doors 1a and 1b can be controlled to be fully opened to make it easier for pedestrians to pass through.

[Brief explanation of drawings]

The drawings relate to this invention; Fig. 1 is an explanatory diagram of the automatic door in the middle of opening and closing, Fig. 2 is a block diagram, and Fig. 3 is a diagram of the door state when detected by the predetermined opening position detection limit switch. , Figure 4 is a diagram of the door status when it is fully open and detected by the fully open position detection limit switch, Figure 5 is a diagram of the door status when it is fully closed and detected by the closed position detection limit switch, and Figure 6 is a diagram of the door status for each passage. It is a time chart showing the detection state of the inside and outside detection switches, the door operation signal, and the door state with respect to the pattern. 1a, 1b...Door, 2...Inside detection switch, 3
...Outside detection switch, 4...Closed position detection limit switch, 5...Predetermined opening position detection limit switch, 6...Full open position detection limit switch, 1
DESCRIPTION OF SYMBOLS 1...First signal, 14...Second signal, 12...Control circuit, 13...Setting time circuit, 16...Drive device.

Claims (1)

[Claims] 1 A drive device that opens and closes the door in an automatic door that opens the door when either the inside detection switch installed on the inside of the door or the outside detection switch installed on the outside of the door detects a passing object. When only one of the two types of detection switches detects a passing object, it sends a first signal to the control circuit, and this first signal controls the drive device to open the door completely. The switch is opened to a small predetermined opening degree, and if the two types of detection switches described above simultaneously detect a passing body and the detection time exceeds the set time of the set time circuit, a second signal is sent. A drive control method for an automatic door, characterized by controlling a drive device to fully open the door.