JPH01139482A - Method of controlling group control elevator - Google Patents

Abstract

PURPOSE: To service all floors sharingly with always operable elevators by selecting a shared floor predetermined based on each information just before a failure and by automatically recording call from the shared floor, at the failure in each machine control device. CONSTITUTION: Two elevators, A machine and D machine, are assumed to be in an inoperable condition due to any failure or operation stop. When failures occur in a landing call system or a group management device G in this condition, each of machine control devices CA-CF receives failure signals from the group management device G, or the signals from the group management device G are stopped, and therefore, learns the occurring of failures in the group management device G. Each of machine control devices CA-CF selects a shared floor predetermined based on each information just before a failure from the group management device G. Thus, operable elevators, or B, C, E, F machines, automatically share all floors.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a method for controlling an elevator when the elevator becomes unable to respond to a hall call due to a failure of the hall call system or group control device in a group control elevator. It is something.

[Conventional technology and problems]

In order to efficiently operate multiple elevators installed in parallel, group management control is performed by a group management device.

When a hall call occurs, the group control device selects the most suitable car based on the information of each elevator and assigns it to that hall call, and each elevator uses the car call and the assigned hall call. The operation is controlled by a machine control device provided for each elevator so as to respond.

However, in such a group control elevator, if a failure occurs in the hall call system or the group control device, the elevator will not respond no matter how many call buttons are operated at the hall.

In order to prevent this situation, the conventional method is to divide each floor into multiple groups and predetermine each elevator group to be assigned to each group, and when the group control device etc. breaks down, each elevator control device There is a system that allows each elevator to sequentially service the floors assigned to its own elevator by automatically registering car calls for assigned floors. This situation is shown in FIG.

FIG. 5 is a diagram showing the arrangement of each elevator and the floors assigned to each elevator, taking as an example a case where six elevators A to F are in service in a building with 10 floors. In Fig. 5, the hatched areas indicate the assigned floors of each aircraft.For example, in aircraft A, the 1st, 4th, 7th, and 10th floors are assigned floors, and the landing call system and group management equipment are When a failure occurs, the unit control device of Unit A automatically registers the car call for this assigned floor, and Unit A stops on the 1st, 4th, 7th, and 10th floors in sequence, and the car call is accepted by passengers who boarded from those floors. When this occurs, the car will also respond to that car call and stop. B
Cars No. 1 to No. F perform similar operations, so that even if a failure occurs in the group control device, etc., service at each landing can be uniformly provided.

However, in this case, the predetermined assigned floors for each unit are fixed, so in the case of Figure 5, for example, Units A and D are out of group control due to suspension of operation or failure. Sometimes, when a failure occurs in the group management device, etc., 4. 7. There will be no elevators to share the 10th floor, and service at these landings will deteriorate dramatically.

For this reason, in the event of a failure of the group control device, etc., it may be possible to decide on a new assignment for all floors using the remaining elevators, excluding those that are out of service or in failure. It was necessary to create a configuration in which each unit control unit could communicate information about which elevators were operable and which elevators were inoperable.

[Means for solving problems]

The present invention has been made to solve the above problems,
This allows all floors to be automatically divided according to the number of operable elevators without communication between each car in the event of a failure of the group control device or the like.

For this reason, in the present invention, information on whether the own machine can be operated is always transmitted from each machine control device to the group control device during normal times.
Based on this information, the group control device always sends information indicating the current number of operable machines and the number of machines among them to each machine control device.

Furthermore, a program for selecting a predetermined assigned floor is stored in each car control device based on information about the number of operable cars and the number of the cars among them.

In the event of a failure of the group control device, each unit control device knows the current number of operable units and the number of units it owns among them, based on the latest information received from the group control unit immediately before the failure. Based on this, a predetermined shared floor is selected, and the car call for that floor is automatically registered.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a diagram showing the basic configuration of a group control elevator to which the present invention is applied.

For convenience of explanation, here, as in the case of Fig. 5, A
- A case will be explained in which six elevators of No. F are put into service on the 10th floor.

In Figure 1, T(+ ”H+o are respectively 1st floor to 1st floor
Hall call button installed at the landing on the 0th floor (partially not shown), G
is a group control device that selects the most suitable elevator from cars A-F and assigns the hall call when a hall call is registered, L and L2 are signal lines, and CA-CF are A-F, respectively.
The car control device of each car controls the car so that it responds to car calls and assigned hall calls in sequence, and also constantly sends information on whether or not the car is operable to the group control device.

In addition, the group control device G allocates hall calls only to operable elevators based on the information from each unit control device CA to CF, as well as assigns hall calls only to elevators that are operable at the moment and the number of elevators among them. This information is sent to each unit control device CA-
Always sending to CF.

Next, the operation of the above configuration will be explained.

Now, assuming that two elevators, A and D, are inoperable due to failure or suspension of operation, inputs are input from the A and D car control devices CA and CD to the group control device G, respectively. or the unit control device C
Since there is no trace of communication from A and CD, the group control device G knows that aircraft A and D are inoperable.

On the other hand, since the remaining four unit control devices are constantly transmitting information that they are ready for operation, the group control device G
The number of elevators that can be operated and the number of elevators among them are stored in each of the control devices of No. B, that is, the control device CB of No. B of No.
In the same way, machine B is the first of the four machines, machine C is the second of four, machine E is the third of four, and machine F is the third of the four. It always sends information that it is the 4th device out of 4 devices. Of course, if there is a change in the number of operable vehicles after that, the information after the change will be transmitted.

If a failure occurs in the hall call system or group control device G in this state, each unit control device will
It is known that the group management device G has failed by receiving a failure signal from the group management device G or by the fact that the signal from the group management device G disappears. At this time, each car control device performs a predetermined floor selection operation based on the information received from the group control device G immediately before.

FIG. 2 shows a flowchart of a program that selects a shared floor based on the number of operable elevators and the number of elevators among them. This program has contents common to all machines and is stored in each machine control device.

Currently, Units A and D are not operable and this =7- program has already stopped, so they do not select the shared floor, but if they are operable, this program will be activated in Units C, E, and F. When a failure or the like of the group management device G is detected as described above, the process proceeds from step Sll to 312, and an operation for selecting an assigned floor is started. The number of elevators that can be operated now is 4, so steps S12 to S13
As mentioned above, in the unit control unit CB of unit B, since it is the first unit out of four, the process goes to step 17.
1. Automatically register these car calls with floors 4, 7, and 10 as shared floors. Similarly, since machine C is the second machine out of four, the machine control unit CC performs steps S13 to S14.
．． Proceeding to S18, a car call is automatically registered with the 1, 2, 5° 8th floor as the shared floor.

Similarly, since machine E is the third machine out of four, machine control unit CB performs steps S13 to S14. Proceed to S19, 1.
3.6.9th floor car call is automatically registered. Also, since the F unit is the fourth out of four units, step S13 is carried out similarly to the B unit.
The process then proceeds to S17, and the car calls for floors 1, 4, 7, and 10 are registered.

Figure 3 shows the shared floors of each unit at this time.

In this way, all floors are automatically shared between the four operable elevators.

The above is a case where two elevators, A and D, were out of operation.Next, when four elevators, A, B, D, and F, were out of operation due to failure etc., the group A case where the management device etc. breaks down will be explained. In this case, there are only two elevators that can be operated, C and E.
In the same way as in the previous case, during normal times, the unit control device CC of unit C is the first of two units, and the unit controller CE of unit E is the second unit of the two units. Each thing is being sent. Therefore, when a failure of the group control device, etc. is detected, the unit control unit CC of the C unit performs step S1.
2 to S15. S16. Proceed to S20 and proceed to 1, 3.5, 7.
The car call on the 9th floor is registered, and the car control unit CE of car E
Now, steps S12 to S15. S16. Proceed to S21,
1. 2. 4゜6.8.10th floor car call is registered.

In this way, even if there are two operable elevators, all floors are automatically divided between the two elevators accordingly.

In the above description, each car control device automatically registers the car call for the assigned floor, but it may be automatically registered in each car control device as an assigned hall call.

〔Effect of the invention〕

According to the present invention, when it becomes impossible to allocate a hall call due to a failure of the group control device, etc., even if there is already an elevator that is out of operation due to a failure, the remaining operable elevators are always used to cover all floors. You can share the service.

Furthermore, at this time, there is no need for communication between each machine control device to confirm the number of operable machines, and therefore, redundant wiring between each machine control device can be eliminated.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the basic configuration of a group control elevator to which the present invention is applied, FIG. 2 is a flowchart showing the procedure for selecting assigned floors according to the present invention, and FIGS. FIG. 5 is a diagram illustrating the relationship between each car and the assigned floors in the related art. A~F10. Elevator units CA-CF, , unit control devices H+ to H corresponding to each unit
＋o、、、1st floor to 10th floor call button 0981 group management device patent applicant Fujichik Co., Ltd.

Claims (1)

[Scope of Claims] A machine control device that is provided for each of a plurality of elevators and controls the operation of the corresponding elevator;
A group management device that selects the most suitable elevator from each elevator for a hall call common to the plurality of elevators and assigns it to the car control device corresponding to the elevator, and controls the plurality of elevators in group management. In the control method for a group control elevator, in normal times, each of the car control devices always transmits operation availability information of its own car to the group control device,
The group control device constantly transmits information indicating the number of elevators that can be operated at the moment and the number of the elevators to each of the car control devices, and transmits the information to the hall call system or the group control device. In the case of a failure, each unit control device selects a predetermined assigned floor based on the immediately preceding information, and automatically registers a call for that assigned floor. control method.