JPH0543637B2 - - Google Patents

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 the background art]

In large buildings, group management control is used to control 3 to 8 elevators as a group, but in this case, position indicator lights are not used in the landings to indicate the position of each elevator, but hall lanterns are used to indicate the approach of elevators. is often used. An example of group control elevators is shown in FIG. 2, where six elevators are grouped together. 1 is the landing door, 2 is a hall lantern (one for going up and one for going down), and 3 is the hall push button. Normally, when the passenger 4 presses the hall push button 3 to register a hall call, the group management control device (not shown) will control the direction, position, door status, load status, acceleration/deceleration status, and interior of each elevator. The response elevator is determined by performing a complex but well-known evaluation calculation in consideration of the call status, the hall call registration status of all floors, the response assignment status of other elevators, etc.

When the elevator approaches this floor and starts to decelerate, a chime (not shown) is activated, for example, by two dots, and a holantern 2 is flashed to notify that the car will arrive soon. In high-rise buildings, elevators are generally used with a rated speed of 150 m/min to 240 m/min, and in order to control the ride for a comfortable ride, the acceleration/deceleration speed is 0.8 to 1.0 m/S2, and the rate of change is 0.9 to 1.5 m/S3.
is desirable. Therefore, when the rated speed is 240 m/min, it takes 7 to 8 seconds from the start of deceleration of the elevator traveling at the rated speed (that is, from the flashing of the hall lantern) to the start of the door opening, but when the rated speed is 150 m/min, it takes 3 seconds.
It's only ~4 seconds. Also, when a hall call occurs and you are assigned a response when you are about to depart from the next floor, the 4 to 4
It's only 5 seconds. Furthermore, when the hall call is pressed on a floor where an elevator is waiting, the doors begin to open 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 elevators (6 in the figure) installed side by side at the landing, 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 the time from the hall lantern blinking to the door opening is at least 4.
~5 seconds was insufficient for a passenger to walk to the elevator door and enter. Therefore, if the hall is large, even if the door of the elevator is opened, passengers will not be able to get on the train, which will cause discomfort, and passengers who cannot get on the elevator will have to call the hall again, resulting in wasted service and disrupting the operation of the entire system. The drawback was that it was less efficient.

[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. a timer that starts counting 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.

[Embodiments 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 buses, respectively, 1T and 2T are on-delay timers,
DT is the door opening command relay. In addition, the part before the "-" in the symbol of each contact is the corresponding relay or timer (relays or timers themselves are illustrated, i.e. not only 1T, 2T, DT, but also those where only the contact is illustrated). ), and "-"
"a" and "b" immediately after "a" and "b" represent normally open contacts and normally closed contacts, respectively, and when there are two or more contacts of the same type, they are further distinguished by adding 1, 2, etc.

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, detects the next call to stop (hall call or car call), and becomes inactive when the elevator reaches the deceleration start point. The HSL 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 the door starts to open. This hall call relay
HSL also operates in this case in order to open the door in response to a hall call that occurs in the direction of travel on a floor where the car is stopped, and issues a hall call deletion command and a door opening command. , then becomes inactive. KSL is a car call detection relay that operates when it detects a car call that is 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 means that the elevator is at a specified rate (e.g. 20m/min)
This is a landing relay that operates at a stable speed even when 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 mm) 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-opening command pushbuttons and door-opening command pushbuttons provided on the in-car operation panel. Also, DLS is a safety switch installed at the tip of the door.

HDO is a stop memory relay for hall calls.
The timer 2T is set to a time equal to the door opening time (for example, 1.8 seconds) plus the normal door opening time (for example, 2 to 3 seconds). The timer 1T is set to the time required for a passenger at the farthest position in the hall to cross the hall and board the train, plus an allowance of 1 to 2 seconds (for example, 8 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 the DT becomes inactive, and continues to fully close when the door is fully closed. are omitted from illustration.

The operation of the above device will be explained below. The case of stopping due to mix or car call will be explained.
When the next call that the elevator should stop is a car call, it detects this and sends a relay.
KSL operates, contact KSL _-a closes, and when the elevator reaches the deceleration point, this is detected by a circuit (not shown) and the deceleration command relay SLD becomes inactive.
When the car decelerates sufficiently and enters the door zone, the landing relay APR and door zone detection relay DT operate, current flows through the path −KSL _-a −APR _-a −DT _-a −, and the door open command relay DT is activated. At the same time as the operation, the timer 2T starts measuring time.

When DT works Even if a self-holding circuit is formed and KSL _-a opens, DT
is self-preserving. The door is then opened and the passenger can get out. When 2T operates after the set number of seconds of 2T, 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, 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, Current flows to DT through the path of , the door opens again, and 2T
If all the door opening command conditions such as PDO and DLS become inactive after the time limit, DT becomes inactive and the door starts closing. If the door close command push button PDC is pressed after fully opening, the DT will immediately start even if it is before the 2T time limit.
becomes inactive and the door starts closing.

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

In response to the hall call, relay HSL operates and contact HSL _-a 4 closes, relay HDO operates,
When deceleration command relay SLD becomes inactive (deceleration starts) and contact SLD _-2 closes, A current flows through the path of the hall call memory relay.
HDO works and holds itself. The role of the relay HDO is to remember that even if the door begins to open and the HSL becomes inactive, the reason for the stoppage was a hall call. Then, by -HSL _-a 3-APR _-a -DZ _-a -, DT operates in the same way as in the car call, and 2T starts timing.

On the other hand, since the self-holding circuit HDO _-a 2 is closed, It is formed as follows.

Further, when the deceleration command relay SLD becomes inactive (deceleration starts) and the contact SLD _-b 2 closes, the timer 1T starts measuring the elapsed time from that time. Furthermore, when there is a hall call while the car is waiting with a ball and that car is assigned, the relay SLD has been inactive since before that, so the timer 1T is activated when the hall call relay HSL is activated.
starts timing.

Now, when the deceleration stops from the rated speed, the 1T operates before the 2T because the time required for deceleration is longer, and the 1T _-b opens first. Therefore, the door opening time (non-interference time) is determined by the 2T time limit, 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, if a hall call occurs on the floor where the car is waiting, or when the car is on the next floor and is about to start or has just started, then 2T is the contact point 2T _-b After opens, 1T operates and contact 1T _-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 easily board the train.

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 or 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 is no time limit, if the passengers start walking towards the elevator door at that time (when the forecast is 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 push button PDC is pressed, the door can be closed even before the timer 1T is activated, so the door can be closed immediately after the passenger gets into the elevator car, just like before. It is.

As for the time limit of timer 1T, if the timer corresponding to the elevator near the center of the elevator hall is set relatively short, and the timer corresponding to the elevator near the end of the hall is set relatively long, it is possible to set the timer 1T relatively long to meet the actual demand (i.e. until passengers board the elevator). (differences in time required).

〔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 hall call, the time from the hall call to the door closing does not become less than a certain value, so that it is possible to wait 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...Passenger door, 2...Hall lantern, 3...
...Hall call push button, 4...Passenger, 1T, 2
T...Timer, DT...Door opening command relay, HDO
... Hall call memory relay, APR ... Landing relay, DZ ... Door zone detection relay, DOLS ...
Fully open detection relay, PDC...Door close command push button,
PDO...Door opening command push button.

Claims (1)

[Claims] 1. In an elevator group management control system that operates multiple elevators on multiple floors, when one elevator is assigned to a hall call, the above-mentioned hall call has been received and the elevator has started decelerating. a timer that starts timing under the condition of and generates a signal after a predetermined time;
The generation of the door opening command is started on the condition that the above-mentioned hall call has been made and the elevator has arrived at the floor on which the said hall call was made, and that a predetermined time has elapsed from the start of the door-opening command, and An elevator group management control device comprising: a door opening command device that terminates a door opening command on the condition that the timer generates the signal.