JPS6145873A - Controller for group control 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 a control device 1 for a group management control elevator, and more particularly to a rescue technique in the event of a failure of the group management control device using a small computer.

<Technical Background of the Invention and Problems thereof> In recent years, group management control systems that centralize a plurality of elevators as a group have generally used small-sized computers such as microcomputers. This type of group management control elevator control device centrally controls the elevator, which is a means of transportation in a building, and is therefore required to have high reliability. Since this type of group management control system uses a small computer, such as a microcomputer, as the central control point, it is equipped with rescue functions in advance in case the microcomputer and its peripheral equipment break down. ing.

This rescue function generally involves inputting a common hall call for each of the elevators installed in parallel to an individual control device that controls each elevator individually. However, this type of rescue operation has the disadvantage that the function and service efficiency are extremely degraded because all the numbers respond to the same call. As a method to prevent this decline in functionality, a system as a whole has been adopted in which multiple sets of group management control devices are provided, and if a failure occurs, switching to a normal device continues control.

A major advantage of microcomputers is that they are inexpensive, but in systems such as those mentioned above, when rescue operations are taken into account, the scale of the equipment is large and the configuration is complex, so the advantages are not fully utilized.

An example of the configuration of the conventional system described above is shown in Figures 1 and 2 (
This is shown.

First of all, in FIG. 1, 1a to 1f are hall call push button switches installed in the halls of each floor (in this case, the fourth floor is shown), 7 is a hall call registration device, 2 is a group management control device, and 3a ~
3C is an individual control device that controls each elevator (A to C). In this example, it is assumed that group management control is performed for three elevators. The group management control device 2 centrally manages and controls the cars A to C as a group. 4
a to 4C are the group management control device 2 and each individual control device 3a to 3
5 is a rescue hall call data supply line, and 6 is a control line from the group management control device 2 to each individual control device 3a to 3C. In the configuration shown in FIG. 1, when the hall call buttons 1a to 1f are pressed, each signal is stored in the hall call registration device and input to the group management control device 2 and each individual control device 3a to 3C.

The group management controller 2 is collected from the individual controllers via transmission lines 4a-4C. Based on the car information of each elevator (car position, driving direction, load, etc.), the elevator that will serve the input hall call is selected and sent to the individual control devices 3a to 3C via the information transmission lines 4a to 4C. Transmits call rate information.

When the group management control device 2 becomes abnormal, a signal indicating the abnormality is sent to each individual control device 3a to 3C via the control line 6.
inputs hall calls via signal line 5, and each elevator answers all calls independently of each other.

Next, Fig. 2 will be explained. Items with the same symbols as in Fig. 1 are the same elements.

2a is a main group management and control device, and 2b is a slave group management and control device. The signal line 8 is a line that communicates device abnormalities to each other. Normally, group management is performed by the device 2a, but if some abnormality occurs and the group management function is lost, the signal 8 activates the device 2b and the group management is restarted.

As described above, the conventional system uses a microcomputer and is used as a rescue system in case the microcomputer breaks down, resulting in a complicated configuration and increased cost for the system as a whole.

<Objective of the Invention> The present invention has been made in view of the above points, and its object is to simplify the configuration of the entire system having a rescue system, and to develop an elevator control system using a one-step control system with low system cost. provide.

<Summary of the Invention> The present invention provides a group management control device that centrally controls a plurality of elevators arranged in parallel for a plurality of service floors as a group, each of which has a built-in small computer; platform elevator.

a hall call registration device for registering and displaying hall calls for the service floor common to the elevator; an individual control device provided for each of the plurality of elevators to individually control operation thereof; and each of the devices. In a control device for a group management control elevator, which is provided with a data transmission line formed between the elevators and transmitting and receiving control information by controlling a small computer in each device, the group management control device is connected to the hall call registration device in case of a failure. The above object is achieved by adding a low-level group management control function for rescue control of the control device and connecting it to the individual control device via the data transmission path.

<Embodiments of the Invention> Examples of the present invention will be described below with reference to the drawings.

FIG. 3 shows the configuration of an embodiment of the present invention. Elements that are the same as those in FIGS. 1 and 2 are marked with the same - signals, and detailed explanations thereof will be omitted.

The hall call registration device 7 having a low-level group management function, the group management control device 2, and each individual control device 3a to 3C are all connected to the same data transmission line 4, and data can be sent between arbitrary control devices. I can do it.

When the group management control device 2 is normal, the signals from the hall call buttons 1a to 1f are registered in the hall call registration device 7, and the data is sent to the group management control via the transmission line 4, as described in the description of the prior art. It is input to device 2.

The group management control device 2 distributes and transmits the input call data to each of the individual control devices 3a to 3C via the transmission path 4 based on a predetermined determination. Each elevator responds to and runs its assigned call.

When the group management control device 2 becomes abnormal, the abnormality information is transmitted to the hall call registration device 7 through the control line 6, and the hall call registration device 7 disconnects the group management control device 2 and uses its own low-level group management functions. to start. That is, the transmission of the registered hall call to the group management control device 2 is terminated, and the call is distributed and transmitted via the transmission path 4 based on a predetermined judgment.

As described above, the individual control devices 3a to 3C perform efficient rescue group management control operation without all machines responding to the same call.

Although a loop transmission line is used as the transmission line 4 in the embodiment shown in FIG. 3, it is also possible to use a star coupler or the like.

<Effects of the Invention> By implementing the present invention, the configuration of the entire system including the rescue of group control elevators can be simplified, resulting in a control device for group control elevators with high reliability and low total system cost. can be provided.

[Brief explanation of drawings]

1 and 2 are block diagrams of a conventional group management control elevator control device, and FIG. 3 is a block diagram showing an embodiment of the present invention. 1a to 1f Hall call push button switch 2 Group management control device 38 to 30 Individual control device 4a to 4C data transmission line 5 Backup hall call transmission line 6 Group management control device abnormal signal 7 Hall call registration device (7317) Agent Patent attorney Rules Kensuke Chika (
and 1 other person) Q Kuku Kaku Kaya 2 Figure and 26 Figure 3

Claims (1)

[Claims] a group management control device that centrally controls a plurality of elevators installed in parallel for a plurality of service floors as a group, each of which has a built-in small computer; and the service common to the plurality of elevators. a hall call registration device for registering and displaying floor hall calls; an individual control device provided for each of the plurality of elevators to independently control the operation of each elevator; and a small computer for each device formed between each of the devices. In the control device for a group management control elevator equipped with a data transmission path for sending and receiving control information under the control of A control device for a group management control elevator, characterized in that it has an added control function and is connected to an individual control device via the data transmission path.