JPS638029B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator operation control method for an elevator group in which a plurality of elevators are arranged in parallel and can run at different speeds depending on the size of the interval between operating floors.

The conventional elevator operation control method is shown in Figures 1 to 3.
This will be explained using figures. Fig. 1 is a flowchart when the elevator is traveling at a constant speed (from the end of acceleration to the start of deceleration), Fig. 2 is a diagram showing the speed pattern of the elevator, and Fig. 3 is a diagram showing the operation pattern of the elevator. It is.

In this example, the elevator has an intermediate speed (maximum speed when operating floors with an interval of 2 floors or less) v1,
It is equipped with a speed pattern with two types of constant running speeds: rated speed (maximum speed when operating with an operating floor interval of 3 or more floors) v2, and 1 to 5 are speed patterns with 1 to 5 operating floors. Showing the speed pattern in the case of a floor, 1
a to 5a indicate the operation patterns when the operating floor interval is 1 to 5 floors, ta is the acceleration time required for the car speed to reach the intermediate speed v1, tc is the time when operating on the 2nd floor, etc. Fast running time, td is the deceleration time required from intermediate speed v1 to stop, ts is the stopping time during which the car is stopped on the floor, and 1F to 6F indicate the positions of the 1st to 6th floors.

Next, the operation of the above conventional example will be explained. When the car leaves for the destination floor, the advance selector indicates the destination floor. When the car finishes accelerating and starts running at a constant speed, as shown in Figure 1, if it is detected in step 22 that the car has reached the deceleration point of the floor specified by the preceding selector, the car starts running at a constant speed in step 23. Detects whether or not the vehicle is running at the rated speed. If the car is not running at the rated speed, that is, if it is running at an intermediate speed, step 27 is performed.
If the vehicle is running at the rated speed, the vehicle decelerates if there is a call on the floor specified by the preceding selector in step 24, and if there is no call, the vehicle decelerates in step 25.
The process moves to step 26 and checks whether there is a call to be answered on a subsequent floor. If there is no call to be answered, the speed is slowed down. If there is a call to be answered, the process moves to step 26 and sends the advance selector and repeats the above operation. It is something that is repeated.

However, the above-mentioned conventional method has the disadvantage that when the car runs at an intermediate speed in response to a hall call, the following inconvenience occurs.

When the first car departs from the first floor in response to a call from the third floor, the first car runs at speed pattern 2 as shown in FIG. By the way, when multiple elevators are installed in parallel, a car call to the 3rd floor occurs in another car, and the car arrives at the 3rd floor before the 1st car, and also responds to the 3rd floor hall call and returns to the 3rd floor. may cancel the boarding call. However, since Unit 1 is not running at the rated speed v2, as shown in the flowchart in Figure 1, even if the 3rd floor landing call is cancelled, steps 22, 23, and 27
When it reaches the deceleration point of the floor, it will start decelerating, and once it has stopped, if there is a call to answer after that (for example, on the 4th floor)
I will be leaving again. This driving pattern is
The result is as shown in FIG. 3, 6a.

Therefore, the car stops at a floor where there are no calls, resulting in poor energy consumption efficiency, delayed arrival at the destination floor, and a sense of discomfort and disbelief among passengers.

The present invention aims to eliminate the above-mentioned drawbacks by preventing unnecessary stops of the car.

An embodiment of the present invention will be described below with reference to FIGS. 4 to 6. FIG. 4 is a flowchart during constant speed operation of the elevator, FIG. 5 is a diagram showing the speed pattern of the elevator, and FIG. 6 is a diagram showing the operation pattern of the elevator. The difference between FIG. 4 of this embodiment and FIG. 1 of the conventional example is that the conventional step 23 for detecting whether or not the vehicle is traveling at the rated speed is eliminated, so that the vehicle can travel long distances at an intermediate speed. It also allows for a step between traditional steps 25 and 26.
By adding 30 to 33, the driving time to reach the destination floor can be further shortened.

Next, the operation of this embodiment will be explained.

Assuming that the car has now departed for its destination floor, the advance selector indicates the destination floor. When the car finishes its acceleration and starts running at a constant speed, if it is detected in step 22 that the car has reached the deceleration point of the floor specified by the preceding selector, it is determined in step 24 whether there is a call on that floor. Detect. If another car has already answered the hall call on that floor and the call has disappeared, proceed to step 25.
Then, it is detected whether or not there is a call to be answered on the subsequent floor. If there is no call to be answered, step 27 is executed, the speed is reduced, and the system is stopped. If there is a call to be answered, step 30 detects whether the car is empty or not. If the car is not empty, the step 31, the train determines whether the predicted arrival time to the next stopping floor will be faster if it continues running at the same speed, or if it will be faster if it stops and starts again, and then stops once. If it would be faster to continue driving, execute step 27 and decelerate; if it would be faster to continue driving, execute step 26. If the cage is empty, it is determined in step 32 whether or not to accelerate, taking other conditions of the group management system into account. If the cage is not accelerated, step 32
31, and if the vehicle is to be accelerated, at step 33 the vehicle is accelerated to the maximum speed that can be smoothly operated from that point, and then step 26 is executed. The above operation is repeated every time the deceleration point of the preceding selector is reached.

Next, this embodiment will be explained using a specific example.

Now, suppose that Car No. 1 departs from the first floor in response to a landing call on the third floor, the advance selector instructs the third floor, the car starts running at a constant speed, and in step 22 the car reaches the deceleration point on the third floor. If a call is detected, a determination is made at step 24 as to whether there is a call on the third floor. At this time,
If the third floor hall call has been canceled by another car, the process moves to step 25 to detect whether there is a call to be answered on a subsequent floor. At this time, 4
If there is a call to be answered on the floor, the process moves to step 30, and if the car is not empty, steps 31 and 26 are executed to slow down, and if the car is empty, step 32 is executed, but in this case, due to distance It is impossible to accelerate, so execute steps 31, 26 to decelerate,
Stop on the 4th floor. The speed pattern at this time is the fifth
In Fig. 7, the driving pattern is now as shown in Fig. 6, 7a, and when compared with the conventional speed pattern 6 and driving pattern 6a, unnecessary stops are prevented, so the driving time of the car is significantly shortened. You can see that Note that T0 indicates the time point when the third floor hall call disappears.

Next, another specific example will be explained. 3 baskets
After leaving the first floor in response to a landing call on the floor, if the third floor landing call is canceled by another car, it is assumed that the next call to be answered is on the eighth floor. At this time, assuming that the car is empty, at the deceleration point to the third floor, the speed pattern of the car is changed as shown in 12 in Figure 5 by steps 30, 32, and 33, and the car accelerates to the maximum possible speed. do. Further, if it is determined in step 30 that the car is not empty, it is determined in step 31 whether or not it should be temporarily stopped. At this time, speed pattern 8 and operation pattern 8a when the operation is stopped once and then restarted, and speed pattern 10 and operation pattern 10a when the operation is continued as shown in FIGS. 5 and 6, respectively. become. Therefore, rather than continuing to drive, it is faster to stop and start again to reach the 8th floor.
The train moves from step 31 to step 27, decelerates to a stop on the 3rd floor, and starts driving again towards the 8th floor.

In the above embodiment, the detection of whether the hall call to be answered at the first destination floor has disappeared is performed when the car reaches the deceleration point of the floor indicated by the advance selector. This can also be done from the moment the machine starts operating. By doing this, for example, in the case of an empty car, when driving to the floor of the next call to answer because the hall call to answer at the first destination floor has disappeared,
The judgment as to whether or not to accelerate (steps 30, 32) and the start of acceleration (step 33) can be executed immediately at the time T0 when the hall call to be answered on the first destination floor disappears. At this time, the speed pattern is shown as 9, and the driving pattern is shown as 9a. Furthermore, when the first destination floor call to be answered is during acceleration,
When it disappears at T1, it is possible to accelerate directly to the rated speed v2. The speed pattern at this time is 1
1, the driving pattern becomes as shown in 11a, and it is possible to arrive at the next destination floor even faster.

Furthermore, in each of the above embodiments, the case where the operating speed of the car is predetermined to be a predetermined type of uniform running speed, such as the rated speed or intermediate speed, has been described. It can also be applied to elevators that are not predetermined and can have stepless speeds.

As explained above, according to the present invention, if the call for the first destination floor disappears while traveling at a speed other than the rated speed, the vehicle will stop at the first destination floor unconditionally as in the past. By detecting the location of the next destination floor and whether the car is empty or not, it is possible to arrive at the next destination floor in the shortest possible time, improving operating efficiency by reducing operating time. In addition to improving energy consumption efficiency, it is also possible to improve services for passengers.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing a conventional elevator operation control method, FIG. 2 is a diagram also showing a speed pattern, FIG. 3 is a diagram also showing an operation pattern, and FIG. 4 is a flowchart of an embodiment of the present invention. Figure 5 is a diagram showing the speed pattern as well.
FIG. 6 is a diagram similarly showing the driving pattern. 1 to 5...Speed pattern when the operating floor interval is 1 to 5 floors, 6...An example of the speed pattern according to the conventional operation control method, 7 to 11...Speed pattern according to the operation control method of the present invention Examples, 1a-5
a... Operating pattern when the operating floor interval is 1 to 5 floors, 6a... An example of an operating pattern according to a conventional operation control method, 7a to 11a... Example of an operating pattern according to the operation control method of the present invention .

Claims (1)

[Scope of Claims] 1. In an elevator in which a plurality of elevators are installed in parallel and can operate at different speeds depending on the size of the floor spacing, the car should respond between the start of operation of the car and the start of deceleration. If the destination floor is no longer called,
A means for starting deceleration when there is no call to be answered on a subsequent floor, and a means to start deceleration when there is a call to be answered on a subsequent floor, depending on the judgment corresponding to the conditions, to restart the operation after stopping once or to maintain the same speed. means for selecting either to continue driving at a higher speed or to accelerate and continue driving at a higher speed so as to shorten the predicted arrival time to the floor where the call is to be answered. An elevator operation control method characterized by: 2 If there is a call to be answered on a subsequent floor,
2. The elevator operation control method according to claim 1, further comprising means for determining whether to accelerate to a higher speed on the condition that the car is an empty car. 3. If there is a call to be answered on a subsequent floor,
3. The elevator operation control method according to claim 1, further comprising means for accelerating the elevator car to a maximum speed at which it can operate smoothly when the car is empty.