JP2002220164A - Elevator group supervisory control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To establish more efficient group supervisory control while maximally precluding a possibility of collision, in an elevator system where a plurality of cars serve in a single shaft. SOLUTION: The elevator system, where a plurality of shafts form one bank and a plurality of cars freely movable in relation to each other serve in each shaft, comprises a traffic detecting means for detecting traffic data on an elevator generated in a building, a zone setting means for setting a priority zone and a common zone for each of the upper and lower cars in dependence on the detection result of the traffic detecting means, a priority assignment setting means for setting a priority-assigned car in dependence on a call generation floor and direction and the zones set by the zone setting means when a landing call is generated, and an assignment deciding means for deciding an assigned car for the call on the basis of the priority assignment setting of the priority- assigned car thus set.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator system for efficiently managing and controlling a plurality of elevators of the same bank in an elevator system in which a plurality of shafts are used as one bank and a plurality of cars are used in one shaft. The present invention relates to a management control device.

[0002]

2. Description of the Related Art Usually, group management control is performed when a plurality of elevators are installed side by side. When group management control is applied to an elevator system in which a plurality of cars are serviced in one shaft, the most different point from a normal system in which one car is serviced in one shaft is that a car in the same shaft is serviced. The point is that it is necessary to control to improve the transportation efficiency as an elevator system after avoiding a collision.

In consideration of this, there is, for example, Japanese Patent No. 3029168. In this patent, a system is proposed in which a car-inhibited section is set for a system that performs a cyclic (horizontally movable) operation, and a car is controlled so as not to enter this section.

[0004]

However, in the above-mentioned prior art, there is no restriction on the service zone ad for each car, and therefore, depending on the traffic situation, frequent evacuation or operation stoppage for collision avoidance is required. Need to be done. For this reason, there has been a problem that the transportation efficiency of the elevator system may be significantly reduced.
In addition, since a circulation type elevator system is premised, there is a problem that it cannot be applied to an elevator system which cannot move horizontally.

[0005] The present invention solves the above-mentioned problems of the prior art, and prevents the possibility of collision as much as possible in an elevator system in which a plurality of cars are used in one shaft, and further increases the efficiency. It is an object of the present invention to provide an elevator group management control device capable of performing excellent group management control.

[0006]

An elevator group management control apparatus according to the present invention is an elevator system in which a plurality of shafts are used as one bank and a plurality of cars capable of freely moving within one shaft are used. In the elevator group management control device that manages and controls the elevator group based on the destination call registered by the landing operating device provided in each landing, the traffic detection means for detecting the traffic data of the elevator generated in the building, Zone setting means for setting a priority zone and a common zone for each of the upper and lower cars according to the detection result of the traffic detecting means, and a call generation floor / direction and a zone set by the zone setting means when a call occurs at the landing. Priority assignment setting means for setting a priority assignment car in accordance with the priority assignment car based on the priority assignment setting of the set priority assignment car. It is characterized in that a assignment determining means for determining the assigned car for the call Te.

Further, a collision detecting means for detecting beforehand a situation in which a collision between upper and lower cars occurs, and a collision when the collision detecting means detects the collision in accordance with the call status of the upper and lower cars and the set priority zone. It is characterized by further comprising an evacuation floor setting means for setting a car evacuation floor for avoiding beforehand, and evacuation means for evacuation of the car to the set evacuation floor.

Further, the hall operating device is characterized in that it has a function of registering a destination floor at each hall, and a function of notifying a passenger of a response machine for each registered destination floor.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an example of the overall configuration of the elevator group management control device according to Embodiment 1 of the present invention. FIG. 2 is a diagram showing a system in which four shafts constitute one bank, and shows a case where two cars are put into service on each shaft.

In FIG. 1, reference numeral 1 denotes a group management control device for efficiently group-controlling a plurality of cars, and 2A1-2B2
Each car control device controls each car. The respective car control devices 2A1 and 2A2 are shown as controlling the lower car A1 and the upper car A2, respectively, which serve in the shaft #A of FIG. In addition, each unit control device 2B1, 2B2
Are shown as controlling the lower car B1 and the upper car B2, respectively, which are put into service in the shaft #B.

For convenience of explanation, FIG. 1 shows only a diagram corresponding to two shafts (four cars), but the number of shafts and the number of cars in the shaft are not limited to this.
In normal group management, the number of shafts is limited to eight for ease of passengers in the hall, but there is no limit on the number of shafts from the control itself. Also, the landing device 3 of FIG.
A and 3B collectively illustrate landing devices to be installed in the landing, such as a landing call button and a hall lantern.

Further, the group management control device 1 of FIG. 1 includes each means constituted by software on a microcomputer. That is, the group management control device 1
A communication interface 1A for performing communication and data transmission with each vehicle control device, a traffic detecting means 1B for detecting traffic data of an elevator generated in a building, and a car for each of upper and lower cars according to a detection result of the traffic detecting means 1B. Zone setting means 1C for setting a priority zone and a common zone, and priority assignment setting means 1D for setting a priority assignment car according to a call originating floor and direction and a zone set by the zone setting means 1C when a call occurs at a landing. A prediction calculation means 1E for performing a prediction calculation such as a predicted arrival time of each car at each floor when a call occurs at the landing, and evaluating each of the cars such as a waiting time evaluation and a full capacity based on the prediction calculation result. Evaluation operation means 1F for calculating an index value; allocation determination means 1G for comprehensively evaluating each of these indexes and selecting an assigned car for a new call; Operation control means on the basis of the allocation result of our determination unit 1G performing general operation command for each car 1
H, a collision detecting means 1J for detecting beforehand a situation in which a collision between the upper and lower cars will occur if left unattended, and a car for avoiding a collision in advance according to the call situation of the upper and lower cars when the collision detecting means 1J detects the collision. An evacuation floor setting means 1K for setting an evacuation floor and an evacuation means 1L for evacuation of a car on the set evacuation floor are provided.

Next, prior to the description of the operation in the first embodiment of the present invention, the setting of the priority zone / shared zone in the present invention will be described with reference to FIGS. FIG. 3 shows a zone setting example. In FIG. 3, in a 20-story building, the lower car priority zone is from 1F to 5F, 16F.
20 to 20F as an upper car priority zone, and the other floors as common zones. The priority zone is set to control each upper and lower car to preferentially service a floor in the priority zone in order to avoid collision of the upper and lower cars as much as possible.

FIG. 4 is a flowchart showing a priority zone / shared zone setting procedure. Hereinafter, this procedure will be described. First, in step S101, the traffic detecting means 1B periodically detects traffic data in a building at a cycle of, for example, every 30 minutes. In step S102, statistical processing is performed on the detected traffic data, and the number of people getting off each floor from the previous traffic detection to the current detection is calculated. In step S103, the number of passengers getting off each floor is accumulated sequentially from the top floor, and when the cumulative number of passengers becomes 1 / k or more of the total number of getting off passengers, the uppermost floor to that floor is set as the upper car priority zone. I do. Step S10
In step 4, in the same procedure as in step S103, the number of people getting off each floor is accumulated sequentially from the lowest floor, and set as the lower car priority zone. Here, k is a parameter, and may be set to an appropriate value by simulation as needed. In step S105, floors other than the upper car / lower car priority zones are set as shared zones. Step S1 above
Steps 02 to S105 are performed by the zone setting means 1C.

The method shown in the flowchart of FIG. 4 is a method in which emphasis is placed on getting off rather than getting on. Usually, the elevator stops and waits at the landing floor where the last call is made. For example, if a car serves passengers heading from the second floor to the 18th floor, it stops at the second floor and immediately runs upward after getting on. However, if there is no other call after arriving at the 18th floor, the car will remain stopped. If the lower car is serviced, the behavior of the upper car will be significantly restricted unless the lower car is evacuated. Therefore, it is based on the idea that a zone within a certain range of the number of people getting off is set as a priority zone. However, it is not always necessary to use such a method in a building or the like where the use of each floor is similar. The upper car priority zone may be simply 1 / k from the top floor in the number of floors. The same applies to the lower car priority zone.

Next, a schematic operation at the time of call assignment in the first embodiment will be described with reference to the drawings. FIG.
5 is a flowchart showing an outline of a call assignment operation in the first embodiment. As shown in step S200 in FIG. 5, when a new call is generated, the call and the state of each car are transmitted through the communication means 1A. Then, based on the transmitted data, classification is performed in step S201 according to the new call occurrence floor, and the following procedure is executed.

If the new call occurrence floor is in the upper car priority zone, the upper car of each shaft is designated as the priority car in step S203. This is because the lower car is assigned to the upper car priority zone when the lower car is assigned, so that the possibility of collision is obviously higher than when the upper car is assigned. Also, based on the same idea, when the new call occurrence floor is in the lower car priority zone, step S2
At 04, the lower car of each shaft is designated as the priority car. Further, if the new call floor is in the shared zone, the call direction is determined in step S202, and if it is the down direction, the upper car of each shaft is designated as the priority car in step S203. This is because in the case of a Down call, the destination floor may enter the lower car priority zone. vice versa,
In the case of the UP direction, the lower car of each shaft is designated as the priority car in step S204. Note that the above S201 to S20
Step 4 is executed by the priority assignment setting means 1D, and is performed for each shaft.

Then, steps S203 and S204 are performed.
The procedure from step SS205 is performed for the priority car specified in step. First, in step S205, both the case where the prediction calculation means 1E assumes that the new destination floor call is not assigned to each car and the case where it is assumed that the new destination floor call is assigned,
Perform a prediction operation. This prediction calculation is a procedure for stochastically calculating the estimated arrival time such as how many seconds each car can arrive at each floor and the number of cars in the car after getting on and off the car at each floor. Widely used in group management systems. Therefore, the details of the procedure are omitted here.

In step S206, the evaluation calculation means 1F calculates various evaluation index values for each assigned car. The evaluation index includes a waiting time evaluation, a full capacity evaluation, a boarding time evaluation, and the like. All of these can be calculated from the prediction calculation result of step S205,
As in the case of the prediction calculation procedure, it has been widely used in group management systems. Therefore, the details of the procedure are omitted here. In step S207, step S207
The assigned car determination means 1G performs comprehensive evaluation based on the various evaluation indices calculated in the procedure up to 206, and determines the final assigned car. When the assigned car is determined, the operation control means 1H issues an assignment command and performs operation control based on the command. The above is the description of the schematic operation at the time of call assignment in the first embodiment of the present invention.

Next, an outline of the retract operation in the first embodiment will be described with reference to the drawings. FIG. 6 is a flowchart schematically illustrating the evacuation operation according to the first embodiment. In the first embodiment of the present invention, the evacuation floor is set and instructed when the call is assigned according to the procedure shown in FIG. 5 or when the car call (passenger destination floor call) is registered by getting on and off. When car call registration or hall call assignment is performed in step S300, the direction of the car and the other car in the same shaft is determined in step S301, and the procedure is performed according to the result.

If the direction of the other car is opposite to the direction of the car, the floors to be stopped are searched in step S302, and it is determined whether or not the floors to be driven to the final floor to be stopped overlap. If they do not overlap, there is no danger of collision, so there is no need to evacuate and the procedure ends. If they overlap, in step S305, the evacuation floor for the car is set on the floor in front of the floor on which the other car is scheduled to be finally stopped, and step S309 is performed.
Proceed to. In step S309, the nearest floor of the other-unit priority zone is compared with the floor immediately ahead of the scheduled final stoppage floor of the car, and the other-unit standby floor is set at a farther floor. Then, in step S311, an evacuation floor command is issued to the car and the other car.

When the direction of the other unit is non-directional (stopped),
In step S303, it is determined whether or not the floor at which the car is to be finally stopped is closer to the position of another car. In the case of the near side, there is no danger of collision, so there is no need to evacuate, and the procedure ends.
If it is not before, in step S306, the car and the car evacuation floor are set to the floor immediately before the position of the other car. Then, the procedures of S309 and S311 are executed.

When the direction of the other unit is the same as that of the car,
In step S304, the estimated arrival times of the car and the other car at each floor are compared. If the predicted arrival time of the car is earlier than the estimated arrival time of the other car on the expected arrival floor of the other car, if there is a floor that is earlier than the estimated arrival time of the car, set the car evacuation floor on the floor immediately before that floor,
Proceed to step S308. If not, the process proceeds directly to step S308. In step S308, the final stop scheduled floor of the own car and the other car is compared, and if the own car is farther, the procedures of steps S309 and S311 are executed. If the other car is farther, it is determined in step S307 whether or not the own car shunt floor has been set. If not set, the process ends. If it has been set, step S311 follows.
Follow the steps in

The above is a brief description of the evacuation operation in the first embodiment. In the above procedure, the determination procedure of steps S301 to S304 and S308 is executed by the collision detection unit 1J. Steps S305 to S305
The procedures of 307, S309, and S310 are based on the evacuation floor setting means 1
K is executed, and step S311 is executed by the evacuation control unit 1L. By the above procedure, collision between the upper and lower cars can be avoided. In addition, since the evacuation floor of another unit is set with reference to the priority zone, it is not necessary to evacuate the other unit to an unnecessarily far floor. The above is the description of the first embodiment of the present invention.

Embodiment 2 Next, a second embodiment of the present invention will be described. The overall configuration of the group management device according to the second embodiment is substantially the same as that of the first embodiment, and specifically has the configuration shown in FIG. However, the conventional UP
Instead of the landing button of the / Down format, a landing operating device as shown in FIG. 7A is installed, and as shown in FIG. 7B, a car name plate indicating a car name is installed in each car of the hall. FIG. 7 is an explanatory diagram of a landing operating device according to Embodiment 2 of the present invention. The landing operating device includes a destination floor button for registering a destination floor at the landing, and a display panel for predicting and displaying a response machine for each destination floor. FIG. 7A shows an example in which a hall operating device is installed on the fifth floor of a 20-story building. At the landing, for example, as shown in FIG. 7A, when the passenger presses the destination floor button on the 17th floor, the group management control device immediately determines the response car (the car A in the example of FIG. 7) and displays it on the display panel. Display forecast. By installing such a landing operation device, a call assignment can be performed for each destination floor while always knowing the destination floor.

Next, the operation of the second embodiment of the present invention will be described. Since the setting operation of the priority zone and the setting of the escape floor in the second embodiment are the same as those in the first embodiment, the description is omitted here. Hereinafter, a call assignment operation according to Embodiment 2 of the present invention will be described with reference to the drawings. FIG. 8 is a flowchart showing an outline of a call assignment operation in the second embodiment.

When a destination call is generated by the passenger pressing the destination floor button on the hall operating device in step S400, the new destination call is classified according to the destination floor in step S401. If the destination floor is in the upper car priority zone, the upper car is designated as the priority car in step S404. Similarly, if the destination floor is in the lower car priority zone, step S40
At 5, the lower car is designated as the priority car. This is because the elevator usually stops and waits at the landing floor of the final call, so if the destination floor is assigned a destination call in the lower car priority zone to the upper car, the lower car will not be moved unless the evacuation operation is performed obviously after getting off. This is because the operation is significantly restricted.

If the destination floor is a shared zone, a new destination call is classified again in step S402 according to the call generation floor. If the call generation floor is in the upper car priority zone, the upper car is designated as the priority car in step S404. Similarly, if the call generation floor is in the lower car priority zone, the lower car is designated as the priority car in step S405.
Further, if the calling floor is also in the shared zone, it is determined in step S403 whether or not the floor serving as the center between the calling floor and the destination floor is closer to the upper car priority zone than to the lower car priority zone. If it is close to the upper car priority zone, the upper car is designated as the priority car in step S404. Otherwise, the lower car is designated as the priority car in step S405.
These are based on the idea of determining which of the upper and lower priority zones is closer to the traveling section generated by responding to the destination call. Note that the above steps S401 to S4
Procedures up to 05 are performed by the priority assignment setting means 1D, and are performed for each shaft.

Steps S404, S for each shaft
If a priority car is designated in 405, the following step S40
Steps 6 to S408 are performed to determine the car to be assigned to the new destination call and issue an assignment command. The above is the brief description of the call assignment operation in the second embodiment of the present invention.

[0030]

As described above, according to the present invention, traffic in a building is detected, a priority zone and a common zone are set for each of upper and lower cars according to the detection result, and a call is generated at a landing. In, the priority allocation car is set according to the call generation floor / direction and the zone set by the zone setting means,
Since the assigned car for the call is determined based on the set preferentially assigned car, there is an effect that the possibility of collision can be avoided as much as possible and good driving efficiency can be improved.

Further, a situation in which a collision between the upper and lower cars occurs is detected in advance, and at the time of the detection, a car evacuator for avoiding a collision in advance according to the call status of the upper and lower cars and the set priority zone. Since the floor is set and the car is evacuated to the set evacuation floor, wasteful evacuation traveling can be prevented as much as possible, and there is an effect that good driving efficiency can be improved.

Further, since a floor operating device having a function of registering a destination floor at each landing and a function of predicting a response machine to passengers for each registered destination floor is installed, the destination floor of each landing call is grasped. As a result, there is an effect that the possibility of collision can be avoided as much as possible, or unnecessary limp-home travel can be avoided as much as possible, and good driving efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an example of an overall configuration of an elevator group management control device according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an example of an elevator system to be controlled according to the present invention.

FIG. 3 is an explanatory diagram showing a zone setting example according to the first embodiment of the present invention.

FIG. 4 is a flowchart showing a priority zone / shared zone setting procedure according to the first embodiment of the present invention.

FIG. 5 is a flowchart showing an outline of a call assignment operation according to the first embodiment of the present invention.

FIG. 6 is a flowchart illustrating an outline of a retreat operation according to the first embodiment of the present invention.

FIG. 7 is an explanatory diagram of a landing operating device according to a second embodiment of the present invention.

FIG. 8 is a flowchart showing an outline of a call assignment procedure according to Embodiment 2 of the present invention.

[Explanation of symbols]

1 group management control device, 1A communication means, 1B traffic detection means, 1C zone setting means, 1D priority assignment setting means, 1E prediction calculation means, 1F evaluation calculation means, 1G
Assignment determination means, 1H operation control means, 1J collision detection means, 1K evacuation floor setting means, 1L evacuation control means, 2
A1-2B2 Each unit control device, 3A, 3B landing device, # A- # D shaft, A1-D2 car.

Claims (3)

[Claims] 1. An elevator system in which a plurality of shafts are used as one bank and a plurality of cars capable of freely moving within one shaft are used, and are registered by a hall operating device provided at each hall. An elevator group management control device that manages and controls an elevator group based on a destination call, wherein: a traffic detection unit that detects traffic data of an elevator generated in a building; Zone setting means for setting a zone and a common zone; and priority allocation setting means for setting a priority allocation car according to a call generation floor / direction and a zone set by the zone setting means when a call occurs at a landing. Assignment determining means for determining an assigned car for a call based on the set assigned priority of the assigned car. Elevator group management control device, characterized in that the. 2. The elevator group management control device according to claim 1, wherein collision detection means for detecting a collision between the upper and lower cars in advance, and a call held by the upper and lower cars when the collision detection means detects the collision. Evacuation floor setting means for setting a car evacuation floor for avoiding a collision according to the situation and the set priority zone, and evacuation means for evacuation of the car to the set evacuation floor. An elevator group management control device characterized by the above-mentioned. 3. The elevator group management control device according to claim 1, wherein the hall operating device registers a destination floor in each hall,
An elevator group management control device having a function of notifying a passenger of a response machine for each registered destination floor.