JP4569197B2 - Elevator group management device - Google Patents

Description

The present invention relates to an elevator group management apparatus in which an evaluation index for evaluation when assigning hall calls is improved.

In a conventional group management elevator, a call is assigned to an elevator with a short normal waiting time (estimated arrival time) as to which one of a plurality of elevators responds to a newly generated hall call. It is common. In that case, in order to grasp the time as accurate as possible, a method of taking the passengers' getting-on / off time on the middle floor into consideration is adopted.
JP 58-162472 A JP-A-2-204285

  By the way, on floors where people gather, such as the lobby floor of the building and the sky lobby floor (hereinafter referred to as the “specific floor”), it is not possible to ignore the passenger boarding / departure times on the floor where the hall call occurred, especially the time of getting off Despite the length, it is not counted in the conventional waiting time, and actually waits until the passenger gets into the elevator on a specific floor. For waiting time evaluation, it is considered that it is more accurate and meaningful to adopt the conventional arrival time plus passenger getting-off time.

The present invention relates to an elevator group management device for selecting a service elevator to be responded to a hall call based on a predetermined evaluation formula relating to a waiting time for a plurality of elevators. If the specific floor is registered in the elevator car call, it is calculated by the estimated waiting time until the specific floor based on the evaluation formula and the load in the elevator car The service elevator is selected as a new estimated waiting time by adding the getting-off time. For landing calls on floors other than the specific floor, whether the specific floor is registered in the elevator car call regardless, without considering the alighting time calculated by the car in the weight of the elevator, as the predicted waiting time based on the evaluation formula, the service elevator Is a group management device for an elevator, characterized in that the selection of data.

  The present invention selects a service elevator that responds to a hall call from the lobby floor in order to evaluate the arrival time on the arrival floor in the waiting time, especially in the floor such as the lobby floor where passengers frequently get on and off. Can be performed more accurately. As a result, the time until the passenger arrives at the target floor can be shortened.

  In the present invention, for a hall call from a specific floor, the passenger's disembarking time on this specific floor is also included in the evaluation of the waiting time.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a system configuration block diagram showing an embodiment of the present invention, and FIG. 2 is a flowchart showing processing in a waiting time calculation unit and a load penalty value calculation unit according to the present invention.

  In the figure, 1 is a hall call registration device for registering calls at the halls of each elevator, 2 is an elevator control device for controlling each elevator, 3 is a hall display device for each elevator, and 4 is a load in the car of each elevator. The load detection device 10 is a group management control device according to the present invention, which is a communication unit 11, a storage unit 12, a waiting time calculation unit 13, a load penalty value calculation unit 14, an evaluation value calculation unit 15, and a hall call assignment calculation unit 16. It is made up of.

  Here, the memory | storage part 12 memorize | stores an elevator, the state of a call, each calculation result, etc. The waiting time calculator 13 predicts and calculates the waiting time of each elevator for each floor and direction, as will be described later. The load penalty value calculation unit 14 calculates a penalty value to be added to the predicted waiting time based on the load state of the elevator. The evaluation value calculation unit 15 calculates an evaluation value used for hall call assignment. The hall call assignment calculation unit 16 assigns the registered hall call to the optimum elevator.

Next, a basic waiting time calculation procedure will be described with reference to FIG.
That is, first, a predicted waiting time table is created by normal waiting time calculation processing. For example, predicted waiting time X = Σ (section travel time) + Σ (door opening / closing time on the middle floor) + Σ (passenger getting on and off time on the middle floor), etc. Calculate the floor and direction and create a table. This is done in step 1.

  Next, in Step 2, it is checked whether the specific floor is the planned stoppage due to the elevator car call. If there is no car call, the normal waiting time is kept as it is, but there is a car call for the specific floor. In this case, the penalty value P is calculated by an evaluation formula using the load W (detected by the load detection device 4) in the elevator car as a variable. The penalty value P is obtained by a linear expression using, for example, an average getting-off time per person as a multiplier. And this P value is added to the above-mentioned prediction waiting time, and this is made into a new prediction waiting time. Do this for all elevators.

  Thereafter, in step 3, the optimum assigned number for the registered new hall call is determined. This calculation process is performed based on the predicted waiting time calculated so far, and a hall call is basically assigned to a unit having a short waiting time. At this time, since the waiting time of the passenger is reflected in the predicted waiting time, the elevator that is ready to board is assigned preferentially, not the elevator that arrives at the specific floor first. Accordingly, the waiting time until the passenger actually gets on the elevator can be shortened instead of the apparent waiting time of arrival of the elevator, and as a result, the time until reaching the destination floor can be shortened.

  As for the specific floor, a fixed floor such as a lobby floor or a sky lobby floor is described as an example, but this also adopts the present invention even if the floor is changed according to the traffic situation at that time. It is possible.

It is a system configuration block diagram showing an example of the present invention. It is a flowchart figure which shows the process in the waiting time calculating part and load penalty value calculating part which concern on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Group management control apparatus 13 Wait time calculating part 14 Load penalty value calculating part 15 Evaluation calculating part 16 Hall call allocation calculating part

Claims (3)

In the elevator group management device that selects multiple service elevators that should respond to the hall call based on a predetermined evaluation formula related to the waiting time. On the other hand, when the specific floor is registered in the elevator car call, the estimated waiting time to the specific floor based on the evaluation formula and the getting-off time calculated by the load in the elevator car In addition to selecting a service elevator as a new predicted waiting time, for hall calls other than the specific floor, regardless of whether the specific floor is registered in the elevator car call without considering the alighting time calculated by the car in the weight of the elevator, as the predicted waiting time based on the evaluation, selection of a service elevator Group management device for an elevator, which comprises carrying out. The elevator group management device according to claim 1, wherein the specific floor is a lobby floor or a sky lobby floor. The elevator group management apparatus according to claim 1, wherein the specific floor changes according to traffic conditions.

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