JPH02233477A - Elevator controller - Google Patents

Abstract

PURPOSE:To improve the service to users for floors with high frequency of use by installing the means for changing the waiting of stand by elevators in order according to traffic demand in a building. CONSTITUTION:The traffic demands of an elevator per floor are measured by a measuring means 2. The measured traffic demands are compared with each other per a given time unit, and the floor of maximum traffic demands is sorted by a maximum traffic demand sorting means 3. A comparison is made on whether the maximum demand is above a preset level, and when the floor higher than the preset level is only one, the floor is set to a starting floor, and when more than two floors and when all floors are below a given level, the starting floor is set by a starting floor selecting means 5.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an elevator control device, and more particularly to a device that improves the operating efficiency of an elevator in response to traffic demand. (Conventional technology) Elevators are equipped with
For example, as disclosed in Japanese Unexamined Patent Publication No. 55-44440, there are two operating methods: a lotus train system in which the vehicle returns to the standard floor when the service to another floor is completed, and a driving system in which the vehicle is abandoned and remains in a standby state. There are several types, and each operating method is effective in meeting the traffic demand for construction debris.

[Problem to be solved by the invention]

In the conventional operation method described above, the standard floor return method reduces the frequency of elevator use when, for example, residents tend to move between floors more frequently due to changes in the traffic demand of the building. The number of return trips to the standard floor increases accordingly, which is uneconomical from the point of view of energy conservation.In addition, since departures are made from the standard floor in response to calls for landings on other floors, it is difficult for users on other floors to return to the standard floor. The service was poor. On the other hand, with the drop-off method, depending on the location of the elevator after leaving work, the service may be limited to the floor where the department with many diplomats is located, or the service quality when these diplomats return to work. It is hard to say that it is good. Therefore, the present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide an elevator system in which elevators are kept on standby at floors with high demand in response to the traffic demand of the building. The objective is to provide a control device for the [Means for Solving the Problems] In order to achieve the above object, the present invention provides a control device for an elevator that operates and services multiple floors in response to a call. A measuring means for measuring the amount of traffic received by cars on each floor; a maximum traffic demand selection means for comparing the traffic demands measured for each predetermined time unit and selecting the floor with the highest traffic demand; Comparing whether the traffic demand of the floors selected by this maximum traffic demand selection means exceeds a predetermined value, and if there is only one floor that exceeds a predetermined value, that floor is set as the departure floor, The present invention is configured to include a departure floor setting means that does not set the departure floor when two or more floors have been crossed. Since the waiting floors of the waiting elevators are successively changed in accordance with the traffic demand of the elevators, this has the excellent effect of providing services to users of frequently used floors.

(Embodiment) An embodiment of the present invention will be explained below. Fig. 1 is a block diagram of the departure floor setting method according to the present invention. 1 is a circuit for counting the number of hall call buttons, and 2 is a circuit for counting the number of hall call buttons. , measure time,
3 is a circuit that outputs a signal at a certain period of time; 3 is a circuit that makes statistics on the values measured in 1 for each floor; 4 is a circuit that sorts floors;
A circuit that determines whether or not to set the departure floor. 5
is a circuit for executing or canceling the setting of the departure floor.

At 1 in FIG. 1, as shown in FIG. 2, the signals of the hall buttons on all floors are taken into the MPU, and the number is stored in the RAM by the MPU for each floor.

In 2, an oscillator built into the control panel generates a reference clock, the MPU measures time based on this clock, and uses RAM to measure the number of calls and create a constant time signal for statistics. do. In other words, as shown in Figure 3, this fixed period of time is when the MPU inputs the reference clock from the oscillator to the RAM based on the numerical value in the program.
It is created by adding one at a time, and therefore, the fixed time t can be set to an arbitrary value from the outside. In addition, as shown in Figure 4, the time for statistics is based on a certain fixed time, 2t minutes before the current time and 2t minutes ago from t minutes ago.
The number of hall calls made in two consecutive minutes in the previous minute is used as a factor in the judgment, and sudden calls occurring in a short period of time are not handled. This is to determine whether the call is occurring suddenly or if the call is occurring frequently over a long period of time. 3, the number of calls from now until t minutes ago and the number of calls from L minutes until 2t minutes ago are added for each floor, stored in RAM, and selected based on the maximum value ti-MPU. In step 4, compare whether the maximum value selected in step 3 exceeds a predetermined value, that is, whether the number of calls has occurred more than the number that should be changed to the departure floor.
It is something to judge.

In step 4, if the maximum number of calls selected in step 3 is less than a predetermined value, the departure floor will be canceled for all floors, and if there are two or more floors with call occurrences greater than the predetermined value, the departure floor will also be canceled. The MPU determines that all floors are to be canceled, and if conditions other than the above are met, the departure floor is set or changed.
The decision is made by In 5, based on the result determined in 4, M
The PU executes operations such as setting, changing, and canceling the departure floor on a program.

The above series of operations are all carried out using the M built in the elevator control panel.
Since the PU performs this, there are no changes to the hardware, and it can be realized only by changing or adding software. A flowchart of this software is shown in FIG. As mentioned earlier in Kuzen, this feature is based on the fact that the measurement time for the number of calls, which is the basis for judgment, is 2t, where t is the judgment cycle, so that it does not respond to sudden changes that occur only in a very short period of time. In addition, if there are many calls on multiple floors or in a quiet situation, the system will switch to drop-off operation.

As described above, according to the present invention, it is possible to continuously and automatically respond to the hourly changing traffic demand of the building, and it is possible to perform the most efficient operation. .

In addition, in the embodiment described above, the case where only the hall button is used as a determination element is shown, but operation control can be performed by adding the elements of the number of passengers in the car, load elements, and number of car calls. is also possible.

〔Effect of the invention〕

According to the present invention, since the starting floor is automatically changed to the floor with the highest demand at a certain point in time, there is an effect that the most efficient operation is performed considering the entire building. Also,
It is expected that demand will naturally decrease during off-peak periods such as during the daytime, but when demand decreases, the departure floor will be automatically released, eliminating unnecessary round-trip driving. , power consumption can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an automatic departure floor sequential change system using the number of hall buttons as an element, which is an embodiment of the present invention. FIG. 2 is a block diagram showing the flow of capturing the number of hole button occurrences on hardware. FIG. 3 is an explanatory diagram showing a mechanism for counting measurement time. FIG. 4 is an explanatory diagram showing how to use the RAM by counting the number of hall calls. FIG. 5 is a flowchart that shows the flow shown in FIG. 1 as a program. 1... Hall call number measurement, 2... Time measurement, 3...
- Statistics on the number of hall calls and floor selection; 4. Determination of setting of departure floor; 5. Execution of setting or cancellation of departure floor. Figure 2 Figure 3 Figure Figure

Claims (1)

[Claims] (1) In a control device for an elevator that serves multiple floors in response to a call, a measuring means for measuring the traffic demand of cars for each floor, and the traffic demand measured in each predetermined time unit. A maximum traffic demand selection means compares the maximum traffic demand and selects the floor that has the maximum, and compares whether this maximum demand exceeds a predetermined value, and if only one floor exceeds it, , set that floor as the departure floor,
An elevator control device characterized by comprising a departure floor selection means that does not set a departure floor when two or more floors have been exceeded or when all floors are below the predetermined value.