JPS61155174A - Group controller for elevator - 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] [Technical Field of the Invention] The present invention relates to an elevator group management control device that operates a plurality of elevators on a plurality of floors and controls them as a group, and particularly relates to an elevator group management control device that controls a plurality of elevators in service on a plurality of floors as a group, and in particular, the present invention relates to an elevator group management control device that controls a plurality of elevators in service on a plurality of floors as a group. Regarding control of door opening time.

[Technical background of the invention and problems with back raising technology] In large buildings, group management control is performed to control 3 to 8 elevators as a group, but in this case, there is a position at the landing where the position of each elevator is displayed. Instead of using indicator lights, hall lanterns are often used to indicate the approach of the elevator. Figure 2 shows an example of a group control elevator. In the figure, there are six elevators in a group. 1 is the landing door, 2 is the hall lantern (there is one for ascending and one is for descending), and 3 is the hall pusher. It's a button. Normally, when the passenger 4 presses the hall push button 3 to register the hall call, the group management control system @ (not shown) will check the direction, position, door status, load status, acceleration/deceleration status, and elevator car status of each elevator. The response elevator is determined by performing a complex but well-known evaluation calculation in consideration of the state of calls within the hall, the state of hall call registration on all floors, the response assignment state of other elevators, etc.

When the elevator approaches this floor and starts decelerating, a chime (not shown) will be emitted, for example, twice, and the hall lantern 2 will be activated.
will flash to notify you that your car will arrive soon.

In high-rise buildings, elevators generally have a rated speed of 1 per minute.
A range of about 50m to 240m is often used, and acceleration/deceleration of 0.8 to 1.5m is often used to control the riding comfort. On/82, the rate of change is preferably 0.9 to 1.5 m/83. Therefore, when the rated speed is 240 m/min, it takes 7 to 8 sec from the start of deceleration of the elevator traveling at the rated speed (i.e., from the flashing of the hall lantern) to the opening of the door, but when the rated speed is 150 m/min, it takes only 3 to 4 SeCL. .

Also, even when a hall call occurs and a response is assigned when the passenger is about to depart from the next floor, it will not take more than 4 to 5 SeC regardless of the rated speed. Furthermore, when the hall call is pressed on a floor where an elevator is waiting, the doors start opening at the same time as the hall lanterns start flashing. The time that the door is normally open is 2 to 3 seconds. As shown in Figure 2, there are 3 to 8 (6 in the figure) elevators lined up in the hall, and it is not always the case that passenger 4 will be assigned an elevator near him when he calls the hall. . If an elevator behind or far away arrives immediately after pressing the hall push button 3, there is often a delay in noticing it, so if there is at least 4 to 5 seconds from the start of the hall lantern blinking to the door opening, passengers will not be able to see the elevator. It wasn't enough to walk up to the door and get in. Therefore, if the hall is large, even if the elevator door is opened, passengers may not be able to get in and feel uncomfortable, and the passengers who cannot get on the elevator will have to call the hall again, resulting in wasted operation and reducing the operating efficiency of the entire system. There were some drawbacks as it went down.

[Purpose of the invention]

SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the above-mentioned drawbacks and to provide a group management control system that is easy for passengers to board.

[Summary of the invention]

The control device of the present invention is an elevator group management control device that aggregates a plurality of elevators to a plurality of floors, and is provided with a control device that controls when an assigned elevator decelerates in response to a hall call or when a hall call is received. a timer that starts timing at a later time and issues a signal after a predetermined time; and a door-open command that continues to issue a door-open command until a predetermined time has elapsed since the door was opened and the timer generates the signal. The invention is characterized in that it is equipped with a device.

(Example of the invention) FIG. 1 shows a door opening start command circuit according to an embodiment of the present invention.

In the figure, PC and NC are + and - control power supply bus lines, respectively.
．． 2T is an on-delay timer, and D]- is a door opening command relay. In addition, the part before the "-" in the code of each contact is the corresponding relay or timer (relays or timers themselves are shown, i.e. 17.2T, not only DT but also those where only the contact is shown). ), and “−
raJ and rbJ immediately after ] represent normally open contacts and normally open contacts, respectively, and when there are two or more contacts of the same type, they are further distinguished by adding 1.2....

A relay in which only the contacts are illustrated will be described below.

The SLD is a deceleration command relay that operates when the elevator starts and becomes inactive when it detects the next call to be stopped (hall call or car call) and reaches the deceleration start point. H3L is a hall call detection relay that operates when a hall call is detected as the call to be stopped, issues a command to erase the hall call, and continues to operate until the car stops and door 9il starts. This hall call relay H8L also operates in this case in order to open the door in response to a hall call that occurs in the direction of movement on the floor where the car is stopped, and issues a command to erase the hall call, as well as
Generates a door open command and then becomes inactive. KSL is a car call detection relay that operates when it detects a car call generated by pressing a destination button in the elevator car as the call to be stopped, and continues to operate until the car stops and the door starts to open.

APR is the elevator's predetermined rate (for example, 207 FL/min)
This is a landing relay that operates at a safe speed after the door starts opening. DZ is a door zone detection relay that operates only when the elevator is within a predetermined range (for example, 200 feet) from the normal landing position in the hall.

On the other hand, DOLS is a full open detection switch that opens when the elevator car door is fully opened, and PDC and PDO are door close command push buttons and door open command push buttons provided on the in-car operation panel. Also, DLS is a safety switch installed at the tip of the door.

HDO is a hall call stop memory relay. timer 2
T is set to the door opening time (e.g. 1.8 sec) plus the normal door opening time (e.g. 2 to 3 Sec). Timer 1T is set when the passenger at the farthest position in the hall crosses the hall. 1 to the time it takes to board the vehicle
It is set to a time (e.g., 8 seconds) including a margin of 2 seconds. The sequence circuit is configured so that the door opens when the door open command DT is activated, continues to open when it is fully opened, closes when DT becomes inactive, and continues to fully open when it is fully closed. Illustrations are omitted.

The operation of the above device will be explained below. First, the case where the car stops due to a car call will be explained. When the next call for the elevator to stop is a car call, a circuit (not shown) detects this, activates the relay KSL, closes the contact KSL, and indicates this when the elevator reaches the deceleration point. is detected and the deceleration command relay SLD becomes inactive. When the car decelerates sufficiently and enters the door zone, landing relay APR and door zone detection relay DZ operate, and -KS
A current flows through the path L-APR-DZ, -a-a, and the door open command relay DT operates, and the timer 2T starts timing.

A self-holding circuit is formed to ensure that DT operates, and even if KSL-a opens, D
T is self-preserving. The door will therefore open and passengers can exit the vehicle. When 2T operates for the set number of seconds of 12T, 2T-b in the self-holding circuit opens, and since the door is fully open and DOLS is also open, self-holding is no longer possible, and DT and 2T become inactive, and the door starts closing. . If the door opening command pushbutton PDO is pressed or the safety switch installed at the tip of the door is activated, a current flows through the path of DT and the door opens again, and after a time limit of 2T, the door opens using PDO, DLS, etc. If the door open command condition is inactive, DT becomes inactive and starts closing the door. If the door closing command pushbutton PDC is pressed after full opening, the DT immediately becomes inactive and the door starts closing even before the 2T time limit.

Next, the case of stopping due to a hall call will be explained.

In response to the hall call, relay H8L operates and contact H3L
- When a4 is closed, relay HDO is activated, deceleration command relay SLD is deactivated (deceleration starts), and contact 5L
When D- and 2 are closed, a current flows through the path, and the Hall call memory relay HDo operates and maintains itself. Relay H
The DO's role is to remember that the reason for the stoppage was a hall call, even if the door begins to open and the H8L becomes inactive. Then, with -H8L, 3- APR, -DZ, -, the DT operates in the same way as in the car call, and the 2
T starts timing.

On the other hand, in the self-holding circuit, since HDo, 2 is crossed, It is formed as follows.

Further, when the deceleration command relay SLD becomes inactive (deceleration starts) and the contact SLD-b2 closes, the timer 1 starts measuring the elapsed time from that time. Furthermore, when there is a hall call while the car is waiting in the hall and that car is assigned, the relay SLD has been inactive since before that, so when the hall call relay H8L is activated, one timer starts counting the time. Start.

Now, when the speed is decelerated to a stop from the rated speed, the time required to decelerate is longer, so 1T is faster than 2T, and 1"
r-b opens first. Therefore, the door open time (non-interference time) is determined by the time limit of 2 kings, as is the case when the car is stopped only when the car is called.

In this case, since the deceleration time is long, there is sufficient time for passengers to get on board and prepare.

On the other hand, when a hall call occurs on the floor where the car is waiting,
If a hall call occurs when the car is on the next floor and only the start is pressed or has just started, conversely, after 2K operates and contact 2T opens, 1T operates and contact 1T opens. -b opens.

That is, the door open time (non-interference time) depends on the 1T time limit and is longer than the normal door open time (non-interference time). Therefore, even passengers from far away can board the train easily.

That is, as explained in the technical background of the invention, at the start of deceleration, the arrival of the car is predicted by the dot of the chime and the flashing of the hall lantern 2, but the time from that time until the elevator door closes is determined by the timer 1T. Since there are no other services available before the time limit, if the passengers start walking toward the elevator door at that time (when the forecast was made), they will be there in plenty of time. Additionally, when a waiting elevator on the same floor is assigned, the door opens immediately in response to the call, but the timer 1T is set until the door closes, making it easy to board the elevator. .

If the door start command button PDC is pressed, the door can be closed even before the timer IT is activated, so the door can be closed immediately after the passenger gets into the elevator car, just like before. It is.

The time limit of timer 1T is relatively short for the elevators near the center of the elevator hall.
Timers corresponding to elevators closer to the end of the hall can be set relatively well to better match actual requirements (i.e. differences in the time required for passengers to board).

〔Effect of the invention〕

As described above, according to the present invention, even if the door opens in a short time or immediately in response to a ball call, the time from the hall call to the door closing does not fall below a certain value, so it is difficult for passengers to board the hall. This saves time and makes boarding easier. It also improves elevator operation efficiency.

[Brief explanation of drawings]

FIG. 1 is a sequence circuit diagram showing a part of an elevator group management control device according to an embodiment of the present invention, and FIG. 2 is a schematic diagram showing an example of a hall of a group management elevator. 1... landing door, 2... hall lantern, 3...
Hall call push button, 4...Passenger, 1T, 2T...
・Timer, DT...Door opening command relay, HDO...
Hall call memory relay, APR...landing relay, DZ
...-Door zone detection relay, DOLS...Full open detection relay, PDC-...Door close command push button, PDO・
...Door open command push button. Applicant's agent Kiyoshi Inomata Figure 1 Figure 2

Claims (1)

[Claims] In an elevator group management control system that operates multiple elevators on multiple floors, when one elevator is assigned to a hall call, it is possible to detect that the hall call has been received and that the elevator has started decelerating. A timer that starts timing and generates a signal after a predetermined time as a condition, and a door-opening command that starts generating a door opening command on the condition that the hall call is received and the elevator arrives at the floor where the hall call was made. and a door-opening command device that terminates the door-opening command on condition that a predetermined time has passed since the start of the door-opening command and that the timer has generated the signal.