JP2001122535A - Control method and device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform the optimum response control of superior response without giving an uncomfortable feeling to waiting passengers at a landing in either case of a 2-car system of a low-story floor or a 2-car system of a high-story floor. SOLUTION: When a new landing call occurs in a situation where 2-car control parts 2a, 2b operate one elevator to be at a standstill non-directionally and the other elevator to drive directionally, a rule for deciding a response allotting machine is applied in the order of higher priority. Among the rules are a rule by a traveling distance of the elevator and the traveling time of the elevator, however, the rule is applied according to the number of floors of a building with the elevators installed, where the number of stopping floors are more than a prescribed number, the rule based on the traveling distance is applied thereto so that a car of a machine being in the short traveling distance to the landing call story is made to respond thereto; and where the number of the stopping floors are less than the prescribed number, the rule based on the traveling time is applied thereto so that a car of a machine being short estimated traveling time to reaching the landing call story is made to respond thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method and a control apparatus for an elevator that performs two-car control.

[0002]

2. Description of the Related Art Generally, two elevators are controlled.
When a hall call occurs on a certain floor, the car control device selects the elevator car of the most suitable elevator to handle the hall call among the two elevators, and responds to the selected car at the floor call generation floor. Give service.

In the two-car control device, when selecting a car, when two cars are non-directional, one car is non-directional, another car is directional, and both cars are directional. Thus, the car is selected by applying a predetermined rule for each of the modes by classifying them into three patterns, such as mode 1, mode 2, and mode 3, respectively.

Here, a method of selecting a car in the case of mode 2 will be described with reference to FIG. Unit 1 is car call 2 on the 7th floor
It is assumed that a down hall call 22 on the eighth floor occurs in a situation where the second car 24 is stopped in the non-directional manner on the first floor while ascending toward 1.

[0005] There are a plurality of rules for each mode, priorities are assigned among the rules, and the rules are applied in order from the rule having the highest priority to select a corresponding unit.

[0006] The first rule in the case of mode 2 is that a non-directional car will answer a stop floor call of a non-directional car. Therefore, it is first determined whether or not the first rule can be applied. However, since there is no corresponding unit in the situation of FIG. 6, the second rule, "the directional unit responds within a certain floor in front of the directional unit," It is determined whether "do" is applicable.

Assuming that the fixed floor is normally a second floor, the second rule does not apply, so the third rule is "Non-directional car within a fixed floor above and below the non-directional car."
Judge whether or not is applicable. This fixed floor is also usually a second floor. Therefore, since the third rule does not apply, the fourth rule "directional machine if the arrival time of the directional machine is within a predetermined time" is determined.

The predetermined time is determined according to the number of floors in the building, and is 10 seconds in FIG. Where 1
The estimated arrival time for the car to arrive at the 8th floor hall call is 18 seconds. For this reason, the fourth rule does not apply to the situation of FIG. Therefore, next, the fifth rule “other direction calls are non-directional vehicles” is applied, and the second vehicle 24 is shared. As a result, Unit 2 24, which had been stopped until then, was called down hall call 2 on the 8th floor.
Start climbing towards 2.

However, in the situation shown in FIG.
Before arriving at the floor, only the first car 23 arrives at the seventh floor and finishes responding to the call and stops in a non-directional manner, resulting in the situation shown in FIG. In this case, the waiting passenger waiting at the landing on the eighth floor looks at the indicator display of the landing and confirms the position of the car, and the waiting passenger has a car 23 as if ascending toward the eighth floor. Then, the car stops and goes in no direction, and the car 24 of another distant car appears to be heading to the eighth floor, which causes discomfort.

[0010] There is also a control method in which the first unit 23 is moved to the eighth floor when the first unit 23 is no longer on the seventh floor. However, if the response sharing is changed to the first unit 23, the second unit 24 becomes 8th. You are already ascending to the floor and have no other calls, so you will stop at the nearest floor when the response allotment changes. In this case, the rise of the second car 24 is a wasteful operation, and may be perceived by the user as a mysterious phenomenon that the elevator suddenly rises and stops without any call, which leads to another claim.

If the fixed time in the above-mentioned fifth rule is increased to, for example, 20 seconds, the response sharing of the directional car is increased. In the case of FIG. In this case, the claim in this case is resolved. However, this time, only one unit works well and the other unit does not move very much, which may lead to a complaint as to whether or not it can be operated a little more efficiently.

Therefore, let us consider a case where the fifth rule is changed to a rule that the number is assigned to a car which is closer in position. Due to this rule change, in the situation shown in FIG.
Since 3 responds, the passengers waiting on the eighth floor do not feel uncomfortable. Further, since there is not much difference in the estimated arrival time between the first car 23 and the second car 24, the waiting time hardly changes even if either car responds.

However, the above-described modified fifth rule is applied to the control of a two-car elevator installed in a building having a relatively high floor as shown in FIG. Considering the case, the following inconvenience occurs.

The first car 43 has a car call 41 on the 9th and 11th floors.
It is assumed that a down hall call on the 15th floor has occurred in a situation where the No. 2 is stopping at the second floor in a non-directional manner. First, in the first rule in the case of mode 2, it is determined whether or not "the call of the stop floor of the non-directional car responds to the non-directional car" can be applied.
Since there is no corresponding car, it is next determined according to the second rule that the directional car responds within a certain floor in front of the directional car.

Here, assuming that the fixed floor is the second floor, the second rule does not apply. Next, is the third rule "Non-directional car within a fixed floor above and below the non-directional car" applicable? Is determined. Assuming that the fixed floor is the second floor, as in the situation of FIG. 6, this third rule does not apply. Then, next, it is determined whether or not the fourth rule "directional car if the arrival time of the directional car is within a predetermined time" can be applied. This fixed time is determined according to the number of floors of the building, and is set to 20 seconds in FIG.

Here, when the estimated arrival time until the first car 43 arrives at the hall call on the 15th floor is calculated to be 34 seconds,
Since the rule does not apply to the fourth rule, the fifth rule after the change, that is, “assignment to a car that is closer in position” is determined. In this case, in accordance with the changed rule, the first car 43 in position is headed to the fifteenth floor. However, since the car calls 41 on the ninth and eleventh floors are registered in the first car 43, the first car 43 is received by the time of arrival. take time.

In such a situation, the passenger waiting on the 15th floor has the car 43 not readily responding to the 15th floor, but the other car, the second car 44, has stopped at all without moving. As a result, you will feel uncomfortable with the inefficient elevator that is difficult to come.

[0018]

As described above, the conventional 2
In the car-controlled elevator control method, if a new hall call is generated in a situation where one car stops in the non-direction and the other car operates in the direction, the floor near the hall call is Even if you make the elevator of the unit respond,
Conversely, there is a problem that, even when the elevator of the car with a short estimated arrival time is made to respond, the passenger may feel uncomfortable depending on the number of floors of the building where the elevator is installed.

The present invention provides a control method and a control apparatus for a highly responsive elevator that does not cause discomfort to the passengers waiting at the landing, regardless of whether the system is a low-floor two-car system or a high-floor two-car system. The purpose is to do.

[0020]

According to the first aspect of the present invention, two elevator cars are provided for servicing a plurality of floors, and two elevator cars are provided for a common hall call generated from the hall. An elevator control method for responding to the most suitable one of the floors, wherein when a new hall call occurs in a situation where one vehicle is stopped in a non-directional manner and the other is operating in a directional direction, the floor of the building is stopped. If the number is greater than a predetermined value, a rule based on the traveling distance is applied, and the car of the shorter traveling distance to the hall call occurrence floor is made to respond to the car, and the number of stopped floors is greater than the predetermined value. If the number is too small, a rule based on the traveling time is applied, and the car of the car having the shorter predicted traveling time until reaching the landing call occurrence floor is made to respond.

In the elevator control method according to the first aspect of the present invention, when a new hall call is generated in a situation where one vehicle is stopped in a non-directional manner and another vehicle is operating in a directional direction, a response sharing machine is activated. The rules to be decided are applied in descending order of priority. There are rules based on the travel distance of the elevator and rules based on the travel time, but depending on the number of floors in the building where the elevator is installed, if the number of stop floors is larger than a predetermined value, it is based on the travel distance. The rule of the car with the shorter travel distance to the floor call occurrence floor is made to respond by applying the rule, and if the number of floors to be stopped is less than the predetermined value, the rule based on the travel time is applied, The car of the car with the shorter predicted traveling time to arrive at the call generation floor is made to respond. As a result, it is possible to determine the optimum car and respond to the hall call, and not to make the passenger who made the hall call feel uncomfortable.

According to a second aspect of the present invention, two elevator cars for servicing a plurality of floors are installed, and a single control unit for controlling the single elevator of each unit and a common hall call generated from the hall are provided. An elevator control device having a two-car control unit that responds to an optimal one of two cars, wherein the two-car control unit stops one in a non-directional direction and the other one in a directional direction. When a new hall call occurs in the operating condition, if the number of floors at which the building stops is greater than a predetermined value, a rule based on the mileage is applied, and the mileage to the hall call occurrence floor is applied. Makes the car of the shorter car respond, and if the number of floors to be stopped is smaller than a predetermined value, a rule based on the travel time is applied, and the predicted travel time to arrive at the hall call occurrence floor is short. Responded to the car of the other unit Is shall.

In the elevator control device according to the second aspect of the present invention, the control method according to the first aspect of the present invention uses the control method of the first aspect, and one of the two-car control units stops in a non-directional manner and the other one operates in a directional direction. In this situation, when a new hall call occurs, the rules that determine the response sharing machine are applied in descending order of priority. There are rules based on the travel distance of the elevator and rules based on the travel time, but depending on the number of floors in the building where the elevator is installed, if the number of stop floors is larger than a predetermined value, it is based on the travel distance. Apply the rules
The car with the shorter traveling distance to the floor call occurrence floor responds to the car, and if the number of stop floors is less than the predetermined value, the rule based on the traveling time is applied and until the arrival at the floor call occurrence floor The car of the car with the shorter predicted travel time is made to respond. As a result, it is possible to determine the optimum car and respond to the hall call, and not to make the passenger who made the hall call feel uncomfortable.

[0024]

FIG. 1 is a block diagram of an elevator control apparatus according to a first embodiment of the present invention. The elevator control devices 1a and 1b are parts that control the operation of the elevator, and are two-car control units 2a and 2b, respectively.
And operation control units 3a and 3b. The car 4a of the first elevator is connected to the elevator control device 1a, and the operation control unit 3a controls the operation of raising and lowering the car 4a of the first elevator and the operation of opening and closing the door. On the other hand, the car 4b of the No. 2 elevator is connected to the elevator control device 1b, and the operation control unit 3b controls the raising / lowering operation of the car 4b of the No. 2 elevator and the opening / closing operation of the door.

The two-car control units 2a and 2b are connected to the two-car transmission line 1
0, and is usually connected to the first car 2 car control unit 2a.
Is the master two-car controller, the second car two-car controller 2b
Are determined as two slave control units.

The hall call registration devices 9a to 9n are arranged on each floor. The hall call signals of the hall call registration devices 9a to 9n are transmitted via the hall call input / output control units 7a to 7n and further via the operation control unit 3a of the first car to the two-car control unit 2a.
Is input to At the same time, the hall call signals of the hall call registration devices 9a to 9n are transmitted via the hall call input / output control units 8a to 8n,
Further, it is input to the two-car control unit 2b via the operation control unit 3b of the second car. The hall call signal input to the slave two-car control unit 2b is sent to the master two-car control unit 2a.
It is transmitted via the car transmission line 10.

The master two-car control unit 2a combines the hall call signal received from the two-car transmission line 10 with the hall call signal received by the own-car two-car control unit 2a to create a hall call registration signal. . The created hall call registration signal is transmitted to the slave two-car control unit 2b via the two-car transmission line 10, and the hall call is input via the operation control unit 3a of the own car and the hall call input / output control units 7a to 7n. The response lamps of the registration devices 9a to 9n are turned on. The hall call registration signal transmitted to the slave two-car control unit 2b is also transmitted to the hall call entrance / exit control unit 8a through the operation control unit 3b.
The response lamps of the hall call registration devices 9a to 9n are turned on via 8n.

It should be noted that the hall call registration devices 9a to 9n
In some cases, two of the hall call registration devices are connected to the floor call input / output control units 7a to 7n on the first unit side, and the other hall call registration device is connected to the two floor call registration devices. It is connected to the hall call input / output control units 8a to 8n on the unit side. After the operation transmitted to the hall call input / output control unit is performed, the above-mentioned hall call registration devices 9a to 9n of each floor perform one operation.
This is the same as in the case of

The master two-car control unit 2a determines which car should respond to the generated hall call registration signal, and determines the result as the operation control unit 3 of its own car.
a, and transmitted to the two-car control unit 2b of the other machine via the two-car transmission path 10. Similarly, the slave two-car control unit 2b that has received the response sharing also passes the result to the operation control unit 3b of its own unit. The operation control units 3a and 3b that have received the response allotment, based on the information, use their own cars 4a and 4b.
To direct the car to the response-sharing floor to respond.

In the cars 4a and 4b, there are also car call registration devices 5a and 5b. When a passenger presses a button of his / her destination floor, the car call signal is transmitted via the car call input / output control units 6a and 6b, respectively. To the operation control units 3a and 3b of the own machine to create a car call registration signal. Operation control unit 3
In the same manner as the landing call response sharing command received from the two-car control units 2a and 2b, the cars 4a and 4b of the own car are located on the floor where the car call is registered based on the car call registration signal.
Respond to point b.

Next, the operation of the two-car control units 2a and 2b during normal operation will be described with reference to the flowchart of FIG. First, the master two-car control unit 2a detects whether or not a hall call has newly occurred from the hall call registration signal (step S).
1). When a new event occurs, the direction of each car is detected from the information of the operation control units 3a and 3b in FIG. 1 (Step S).
2). The direction of the slave unit is detected by the master two-car control unit 2a via the two-car transmission line 10. The direction of the detected car is stored in the memory.

Then, according to the direction of the car, the mode is classified into which of the three modes (step S).
3). Here, mode 1 and mode 1 are used when both units are
The case where no vehicle is used and the other vehicle is directional are classified as mode 2, and the case where both vehicles are directional is classified as mode 3. After that, a process for each classified mode is performed (Step S).
4, S5, S6).

Next, the processing of the master two-car control unit 2a in mode 2 will be described with reference to the flowchart of FIG. The floor and direction of the newly generated hall call are detected (step S11). Next, the position of each car is detected (step S12). The car position of the slave unit is
The detection is performed via the two-car transmission line 10. From the detected floor call occurrence floor and the position of the car and the directionality data of each car stored in the memory in advance, it is determined whether the stop floor of the non-directional car coincides with the floor call occurrence floor (step S13). . If they match, the car responding to the hall call is determined to be the non-directional car (step S14). If they do not match, then the floor call occurrence floor is X ahead of the directional car.
It is determined whether it is within the floor (step S15).

The X floor is variable data according to the specification of the building, and here is the second floor. Therefore, in step S15, if it is within the X floor, that is, within the second floor, the process proceeds to step S16, and the car responding to the hall call is determined to be a directional car. On the other hand, in step S15,
If the hall call is ahead of the X floor, the process proceeds to step S17, and it is determined whether or not the call is within the upper and lower X floors of the non-directional car.

The X floor here is also variable data according to the specification of the building, and is assumed to be the second floor here. Therefore, in step S17, if it is determined that it is within the X floor, that is, within the second floor, the process proceeds to step S14, and the car responding to the hall call is determined to be a non-directional car. On the other hand, if it is determined in step S17 that the hall call is ahead of the X floor, the process proceeds to step S18, where the number of stopped floors of the building is Y.
Determine if it is smaller than the floor.

The Y floor is data on the number of floors for distinguishing whether the building has a high floor or not. In this example, the Y floor is 16 floors. Therefore, in step S18, the 16th floor (=
Y) In the case of a smaller building, it calculates how many floors the car travels to respond to the hall call for each car from the information on the position of each car and the hall call occurrence floor (step S19). As a result, the car whose traveling distance is shorter is determined as the car responding to the hall call (step S20).

On the other hand, in step S18, in the case of a building larger than the 16th floor (= Y), the travel time required to respond to the hall call for each car from the information on the position of each car and the floor call occurrence floor. Is calculated (step S21). The calculation method of the travel time is a known technique, and the position of the car, the arrival time to the hall call that the car is to share, the arrival time to the car call registered in the car, the door opening time Are summed up. As a result, the car with the shorter predicted traveling time is determined as the car that responds to the hall call (step S22).

When a car which responds to the hall call generated in this way is determined, in the same situation as the conventional example shown in FIG. The number 23 responds. That is, as shown in FIG. 6, in a situation where the first car 23 is traveling on the fourth floor in the up direction and the second car 24 is non-directionally stopped on the first floor,
If the floor down hall call 22 has occurred, the conditions do not apply to steps S13, S15, and S17 in FIG. 3, so the process proceeds to step S18. And step S1
At 8, since the number of stopped floors of the building is smaller than 16 floors (= Y), the flow branches to YES, and the first car 23 having the shorter running distance is determined as the responding car by the running distance calculation in step S19. As a result, the passenger waiting at the landing on the 8th floor responds to the first car 23 which looks closer, and the farther car 2 with the car stopped just before as shown in FIG. It can prevent coming discomfort.

The situation shown in FIG.
Is traveling on the 6th floor in the up direction, and if the second floor 44 is stopped on the first floor in a non-directional manner and the 15th floor down hall call 42 occurs, the conditions of steps S13, S15 and S17 do not apply, so step S18 Since the number of stopped floors of the building is 16 floors, the process proceeds to travel time calculation in step S21, and the travel time is calculated.

In the calculation of the traveling time, for the first car 43, the car calls 41 are registered on the ninth and eleventh floors, so that the arrival times from the sixth floor to the ninth floor, the door opening and closing time on the ninth floor, The arrival time from the 9th floor to the 11th floor, the door opening time on the 11th floor, and the arrival times from the 11th floor to the 15th floor are all summed up to calculate the travel time until the floor call 42 on the 18th floor is answered. . On the other hand, the second unit 44 is 18 from the second floor.
Calculate the arrival time to the floor down. As a result, the second car 44 with a short running time is determined as the response car.

Therefore, as shown in FIG. 5, while the first car 43 is responding to the car call 41 on the way, the second car 4
4 can go to the 15th floor. As a result, as in the case of the conventional example shown in FIG. 8, although the passenger waiting on the 15th floor does not readily respond to the car on the 15th floor, the other car (the second car) stops without moving at all. It is possible to prevent the user from feeling uncomfortable.

[0042]

As described above, according to the elevator control method of the first aspect of the present invention, one vehicle stops in the non-direction and the other vehicle stops.
When a new hall call occurs in a situation where the platform is operating in one direction, the rules that determine the response sharing machine are applied in descending order of priority, and according to the number of floors of the building where the elevator is installed If the number of stopped floors is larger than a predetermined value, a rule based on the mileage is applied, and the car of the car having the shorter mileage to the floor where the hall call occurs is made to respond, and the number of stopped floors is determined. If it is less than the value, the rule based on the travel time is applied, and the car of the car with the shorter predicted travel time until reaching the landing call occurrence floor is made to respond, so the optimal car is determined and the landing call is determined. , And it is possible to prevent the passenger who called the hall from feeling uncomfortable.

According to the elevator control apparatus of the second aspect of the present invention, the control method of the first aspect of the present invention is used, and one of the two-car control units stops in the non-directional direction and the other one in the directional direction. When a new hall call occurs during operation, the rules for determining the response sharing machine are applied in descending order of priority, and the number of floors stopped according to the number of floors of the building where the elevator is installed If the number of stop floors is less than the specified value, the car based on the shorter distance to the floor call occurrence floor is responded by applying the rule based on the mileage if is larger than the predetermined value. Apply the rule based on the travel time, and let the car of the car with the shorter predicted travel time to arrive at the floor call occurrence floor respond, to determine the optimal car and respond to the hall call , Passenger who called the hall It is possible to prevent discomfort.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram of a control device for an elevator according to one embodiment of the present invention.

FIG. 2 is a flowchart of a mode determination process performed by the elevator control device according to the embodiment.

FIG. 3 is a flowchart of a process for determining a response machine by the elevator control device according to the embodiment.

FIG. 4 is an explanatory diagram showing an example of response control of an optimal unit according to the embodiment.

FIG. 5 is an explanatory diagram showing another example of response control of the optimal unit according to the embodiment.

FIG. 6 is an explanatory diagram showing an example of response control of an optimal unit according to the related art.

FIG. 7 is an explanatory diagram showing another example of the response control of the optimal unit according to the related art.

FIG. 8 is an explanatory diagram showing still another example of the response control of the optimal unit according to the related art.

[Explanation of symbols]

 1a, 1b ... elevator control device. 2a, 2b ... 2 car control unit. 3a, 3b ... operation control unit. 4a, 4b ... basket. 5a, 5b ... car call registration device. 6a, 6b ... car call input / output device. 7a-7n ... hall call input / output control unit. 8a to 8n: hall call input / output control unit. 9a-9n ... hall call registration device. 10 ... 2 car transmission line.

Claims (2)

[Claims] 1. An elevator control method in which two elevator cars are provided to service a plurality of floors and an optimum one of the two cars responds to a common hall call generated from the hall. When a new hall call occurs in a situation where one vehicle is stopped in a non-directional direction and another vehicle is operating in a directional direction, if the number of floors stopped in the building is larger than a predetermined value, the vehicle will travel. Applying a rule based on the distance to make the car of the car having a shorter traveling distance to the hall call occurrence floor respond, and if the number of stopped floors is less than a predetermined value, a rule based on traveling time And controlling a car of a car having a shorter predicted traveling time until the car arrives at the hall call occurrence floor. 2. An elevator car for servicing a plurality of floors, a single control unit for controlling a single elevator of each car, and two elevator cars for a common hall call generated from the hall. An elevator control device having a two-car control unit that responds to an optimum one of the cars, wherein the two-car control unit is stopped in a non-directional manner and the other one is operating in a directional manner. When a hall call is newly generated, if the number of floors at which the building stops is larger than a predetermined value, a rule based on the mileage is applied, and the mileage to the floor at which the hall call occurs is shorter. If the number of floors to be stopped is smaller than a predetermined value, a rule based on the travel time is applied, and the car of the car with the shorter predicted travel time until reaching the landing call occurrence floor is used. And respond to That the elevator control system.