JP6079874B2 - Elevator control system - Google Patents

Description

  The present invention relates to a system for controlling an elevator.

Patent Documents 1 to 4 describe a system for controlling an elevator.
In the system described in Patent Document 1, when the temperature of the electric motor reaches a set temperature, the door does not close even when the door close button is pressed. Thereby, the starting frequency of the electric motor is reduced.

  In the systems described in Patent Documents 2 and 3, when the temperature of the motor reaches a set temperature, a speed pattern in which acceleration and deceleration are reduced is selected. Moreover, in the system described in Patent Document 3, when the temperature of the electric motor reaches a set temperature, a value for determining whether the car is overridden is set to a small value.

  In the system described in Patent Document 4, the temperature of the driving device is predicted. A speed pattern is selected based on the predicted temperature to prevent the drive device from being overloaded.

Japanese Utility Model Publication No. 63-681 Japanese Unexamined Patent Publication No. 2002-3091 Japanese Unexamined Patent Publication No. 2002-60147 Japanese Patent No. 4527059

  In the systems described in Patent Documents 1 to 3, necessary operations are performed after the temperature of the electric motor reaches a set temperature. For example, when the temperature of the electric motor reaches a set temperature, the speed of the car is reduced or the stop time of the car is lengthened. When the temperature of the motor actually reaches the set temperature, a speed pattern in which acceleration and deceleration are greatly reduced must be employed. In particular, there was a problem that convenience was reduced during congestion.

  In the system described in Patent Document 4, the speed pattern is determined after predicting the temperature of the driving device. However, even in the system described in Patent Document 4, operation is performed at a reduced speed of the car. Similar to the systems described in Patent Documents 1 to 3, there is a problem that convenience is reduced.

  The present invention has been made to solve the above-described problems. The objective of this invention is providing the elevator control system which can prevent that an apparatus will be in an overheated state, without reducing the convenience significantly.

The elevator control system according to the present invention includes a registration unit that registers a destination call, a prediction unit that predicts the temperature of a specific device, and an upper limit of the number of passengers in a car when the temperature predicted by the prediction unit is lower than a reference temperature. First setting means for setting the value to a first value and, when the temperature predicted by the prediction means is equal to or higher than a reference temperature, setting an upper limit value of the number of passengers in the car to a second value smaller than the first value; , Calculating means for calculating the number of passengers in the car when the car responds to the destination call registered by the registration means, and when the number of passengers calculated by the calculating means exceeds the upper limit set by the first setting means to the exclusion excluding means the car from the allocation candidate car for the destination call registered by the registration means, when the temperature predicted by the prediction means is lower than the reference temperature over the car stop number Second setting means for setting the value to a third value and, when the temperature predicted by the prediction means is equal to or higher than the reference temperature, setting the upper limit value of the number of stops of the car to a fourth value greater than the third value; , if the car is assigned candidate car, based on the upper limit value set by the second setting means, and assignment means for determining whether to allocate a basket destination call registered by registration means, Ru with a .

  In addition, the elevator control system according to the present invention includes a registration unit that registers a destination call, a prediction unit that predicts the temperature of a specific device, and the number of stops of a car when the temperature predicted by the prediction unit is lower than a reference temperature. Setting means for setting the upper limit value of the car to a first value and, when the temperature predicted by the prediction means is equal to or higher than the reference temperature, setting the upper limit value of the number of car stops to a second value greater than the first value; And assigning means for deciding whether or not to assign a car to the destination call registered by the registration means based on the upper limit value set by the setting means.

Further, the elevator control system according to the present invention includes a registration unit that registers a destination call, a prediction unit that predicts a current effective value of a specific device, and a current effective value predicted by the prediction unit is smaller than a threshold value. When the upper limit value of the number of passengers in the car is set to a first value and the current effective value predicted by the prediction means is equal to or greater than the threshold value, the upper limit value of the number of passengers in the car is set to a second value smaller than the first value. First setting means for setting the value of the vehicle, computing means for computing the number of passengers in the car when the car responds to the destination call registered by the registration means, and the number of passengers computed by the computing means are first set. if it exceeds the upper limit value set by means, excluding excluding means the car from the allocation candidate car for the destination call has been registered by the registration means, the threshold current effective value predicted by the prediction means If it is smaller, the upper limit value of the number of car stops is set to the third value, and if the current effective value predicted by the predicting means is equal to or greater than the threshold value, the upper limit value of the number of car stops is set to the third value. A second setting means for setting a large fourth value and, when the car is an assignment candidate car, a car is assigned to the destination call registered by the registration means based on the upper limit value set by the second setting means. and assignment means for determining whether, Ru comprising a.

  Further, the elevator control system according to the present invention includes a registration unit that registers a destination call, a prediction unit that predicts a current effective value of a specific device, and a current effective value predicted by the prediction unit is smaller than a threshold value. The upper limit value of the number of car stops is set to a first value, and when the effective current value predicted by the prediction means is equal to or greater than a threshold value, And setting means for setting whether the car is assigned to the destination call registered by the registration means based on the upper limit value set by the setting means.

  According to the present invention, it is possible to prevent the device from being overheated without greatly reducing convenience.

It is a block diagram which shows the elevator control system in Embodiment 1 of this invention. It is a figure which shows a motion of the elevator car. It is a figure which shows a motion of the elevator car. It is a flowchart which shows operation | movement of the elevator control system in Embodiment 1 of this invention. It is a figure for demonstrating the function which calculates the number of boarding passengers. It is a flowchart for demonstrating the function which determines an allocation car. It is a flowchart which shows operation | movement of the elevator control system in Embodiment 2 of this invention.

  The present invention will be described in detail with reference to the accompanying drawings. The overlapping description will be simplified or omitted as appropriate. In each figure, the same or corresponding parts are denoted by the same reference numerals.

Embodiment 1 FIG.
1 is a configuration diagram illustrating an elevator control system according to Embodiment 1 of the present invention. The group management device 1 manages a plurality of elevators installed in a building or the like as a group. FIG. 1 shows, as an example, a case where the group management device 1 performs group management of the A machine, the B machine, and the C machine. In the following, in order to specify which device belongs to which unit, any one of A to C is added after the code. That is, A is appended to the sign for the equipment of Unit A. For the equipment of Unit B, add B after the code. For equipment of Unit C, add C after the code.

  The elevator car 2 and the counterweight 3 are suspended in the hoistway by the main rope 4. The means for suspending the car 2 and the counterweight 3 is not limited to the rope. The car 2 and the counterweight 3 may be suspended by belt-like suspension means.

  The main rope 4 is wound around the hoisting machine 5. The electric motor 6 rotates and stops the hoisting machine 5. When the hoisting machine 5 rotates, the main rope 4 moves. The car 2 moves up and down in the hoistway in a direction corresponding to the moving direction of the main rope 4. The counterweight 3 moves up and down in the hoistway in the direction opposite to the direction in which the car 2 moves.

  The driving device 7 drives the electric motor 6. The drive device 7 includes an inverter, for example. The drive device 7 is provided with a temperature detector 8. The temperature detector 8 detects the temperature of the driving device 7. Information on the temperature detected by the temperature detector 8 is input to the control device 9.

  The control device 9 controls the operation of the elevator. The control device 9 receives the registered call information from the group management device 1. The control device 9 transmits a command for causing the car 2 to respond to the registered call to the drive device 7.

  For example, the control device 9A controls the operation of the No. A machine. Information on the temperature detected by the temperature detector 8A is input to the control device 9A. Drive device 7A drives electric motor 6A based on a command received from control device 9A. The electric motor 6A rotates the hoisting machine 5A. When the hoist 5A rotates, the car 2A moves in the hoistway. When the rotation of the hoisting machine 5A stops, the car 2A stops.

  A registration device 10 is provided at the elevator hall. The registration device 10 is a device operated by a user to register a hall call and a destination call. The registration device 10 is provided on each floor where the car 2 stops, for example. The registration device 10 may be installed only on some floors where the car 2 stops.

The registration device 10 includes an input device 11 and a display 12.
The input device 11 is a device for a user to input a destination floor at a landing. The input device 11 shown in FIG. 1 includes ten buttons with numbers from 0 to 9, buttons with stars, and buttons with a minus sign. The form of the input device 11 is not limited to the form shown in FIG. The input device 11 may include a button for each floor where the car 2 stops.

  When the user inputs a destination floor using the input device 11, the registration device 10 transmits a call registration request to the group management device 1. This registration request includes information on the floor on which the registration device 10 as the transmission source is installed and information on the destination floor input by the user.

  The group management device 1 registers the hall call and the destination call based on the registration request received from the registration device 10. The hall call is a call on the floor where the registration device 10 that is the transmission source of the registration request is installed. The destination call is a floor call input from the input device 11 by the user. When the hall call and the destination call are registered, the group management device 1 determines the assigned car in consideration of the operation efficiency of the entire system.

  When the group management device 1 determines the assigned car, the group management device 1 transmits the assigned car information to the registration device 10 that has transmitted the registration request. The registration device 10 causes the display device 12 to display the assigned car information received from the group management device 1. The user sees the content displayed on the display 12 and knows the elevator to be used by the user.

  Further, when the group management device 1 determines the assigned car, the group management device 1 transmits a response command to the control device 9 that controls the assigned car. The response command includes information on the registered hall call and car call. The control device 9 that has received the response command transmits an operation command for causing the car 2 to respond to the registered hall call and car call to the drive device 7.

  Next, with reference to FIG.2 and FIG.3, the problem which the system which inputs a destination floor before a user gets in the cage | basket | car 2 has is demonstrated. 2 and 3 are diagrams showing the movement of the elevator car.

  The weight of the counterweight 3 is set so that it balances with the car 2 when half of the capacity is on the car 2. Therefore, the load applied to the driving device 7 is large when the car 2 rises in a full state. Further, the load applied to the driving device 7 is large when the car 2 descends in an empty state. If the load applied to the driving device 7 is large, the amount of heat generated by the driving device 7 increases.

  For example, in an office building, many people who went to work move from a lobby floor to an upper floor using an elevator. For this reason, the attendance time zone often rises when the car 2 is full and falls when the car 2 is empty.

  FIG. 2 shows the movement of the car 2 in the system in which the user cannot input the destination floor at the landing. FIG. 2 shows an example of the movement of the car 2 during the work hours. In such a system, the user presses an upward button or a downward button at the landing. The user presses the destination button after getting on the car 2. For this reason, there are various destination floors for users riding in the car 2. Car 2 rises while stopping on many floors.

  FIG. 3 shows the movement of the car 2 in the system in which the user inputs the destination floor at the landing. FIG. 3 shows an example of the movement of the car 2 in the working hours. In such a system, the assigned cars are determined so that users with the same destination floor ride in the same car 2 as much as possible. The number of floors where the car 2 stops can be reduced, and the transportation capacity per unit time can be improved.

  In a system in which a user inputs a destination floor at a landing, the work amount per unit time of the driving device 7 increases. For this reason, the load applied to the driving device 7 is larger than the system in which the user cannot input the destination floor at the landing. The amount of heat generated by the drive device 7 also increases. In a system in which a user inputs a destination floor at a landing, the driving device 7 is likely to be overheated.

  The functions of the elevator control system will be described below with reference to FIGS. FIG. 4 is a flowchart showing the operation of the elevator control system according to Embodiment 1 of the present invention.

  The temperature detector 8 detects the current temperature of the driving device 7. The control device 9 periodically acquires information on the detected temperature of the driving device 7 from the temperature detector 8 in a short cycle.

  When the user inputs a destination floor from the input device 11, the registration device 10 transmits a call registration request. The registration request transmitted from the registration device 10 is received by the group management device 1. When receiving the call registration request, the group management device 1 registers the hall call and the destination call (S101).

The group management device 1 starts a process for determining an assigned car for the registered call.
The group management device 1 first notifies the control device 9 of the registered call information. In the example illustrated in FIG. 1, the group management device 1 notifies the registered call information to the control devices 9A to 9C. The control device 9 predicts the temperature of the drive device 7 based on the call information notified from the group management device 1 (S102).

  Below, the function which estimates the temperature of the drive device 7 is demonstrated. The following description is an example of a function for predicting temperature.

  The control device 9 first determines the path of the car 2 necessary for predicting the temperature of the drive device 7. Below, the case where the control apparatus 9 sets the path | route which the car 2 responds to the registered call and the car 2 reciprocates a specific range is demonstrated.

  For example, the control device 9 sets a route to return to the current position after the car 2 stops at the user's destination floor, the upper terminal floor, and the lobby floor. At this time, it is assumed that the car 2 stops the same number as the upper limit value of the number of stops when ascending. The number of stops is the number of floors at which the car 2 stops. The upper limit value of the number of stops is registered in the control device 9 in advance. Further, it is assumed that when the car 2 leaves the lobby floor, the car 2 has the same number of users as the upper limit of the number of passengers. The number of passengers is the number of people in the car 2. The upper limit value of the number of passengers is registered in the control device 9 in advance.

  The specific routes and assumptions described above are examples that are set according to the situation of the elevator in the working hours. The route and the assumption are appropriately set according to the assumed elevator situation.

  The control device 9 predicts the temperature T of the drive device 7 when the car 2 is moved along the determined path based on the following equation.

here,
RTT: Time required for the car 2 to move along the set route L: Distance that the car 2 moves upward in the set route P: Capacity of the car 2 N: Number of times the car 2 stops T ₀ : By the temperature detector 8 Detected current temperatures k ₁ , k _n , μ: coefficients.

  The control device 9 determines whether or not the value of the predicted temperature T is equal to or higher than the threshold value Tth (S103). In the present embodiment, the threshold value Tth is a reference temperature to be compared with the predicted temperature T. The threshold value Tth (reference temperature) is registered in the control device 9 in advance.

  When the predicted temperature T is equal to or higher than the threshold value Tth, the control device 9 sets the upper limit value of the number of passengers to a value smaller than the default value. The upper limit of the number of passengers is preset as the capacity of the car 2 as a default value. For example, if the predicted temperature T is equal to or higher than the threshold value Tth, the control device 9 sets the upper limit value of the number of passengers to 80% of the capacity of the car 2 (S104). In S104, the upper limit value of the number of passengers may be set to another value. For example, in S104, the upper limit value of the number of passengers may be set to 90% of the capacity of the car 2.

  When the predicted temperature T is equal to or higher than the threshold value Tth, the control device 9 sets the upper limit value of the number of stops to a value larger than the default value. For example, if the predicted temperature T is equal to or higher than the threshold value Tth, the control device 9 sets the upper limit value of the number of stops to a value obtained by adding 1 to the default value (S105). In S105, the upper limit value of the number of stops may be set to another value. For example, the upper limit value of the number of stops may be set to infinity in S105. In this case, the restriction due to the upper limit of the number of stops can be eliminated.

  The default value S of the upper limit value of the number of stops can be obtained from the following equation. Formula 2 shows an example of a method for calculating the default value S.

here,
F: Number of floors above the lobby floor C: Number of cars 2 provided in the system.

  On the other hand, when the predicted temperature T is lower than the threshold value Tth (reference temperature), the control device 9 sets the upper limit value of the number of passengers to the default value. If it is the said example, the control apparatus 9 will set the upper limit of a boarding passenger number to the same value as the capacity | capacitance of the car 2 (S106). When the predicted temperature T is lower than the threshold value Tth (reference temperature), the control device 9 sets the upper limit value of the number of stops to a default value (S107).

  Next, the control device 9 calculates the number of passengers in the car 2 when the car 2 responds to the registered call. For example, the control device 9 calculates the number of passengers when the car 2 leaves each floor (S108). Hereinafter, the function of calculating the number of passengers will be described with reference to FIG. The following description is an example of a function for calculating the number of passengers.

  In FIG. 5, the diagram on the left side of the center arrow shows the status of registered calls. The calls shown in FIG. 5 include calls newly registered in S101.

  The car 2 is moving upward on the fifth floor. In the upward direction, calls from the first floor to the tenth floor are registered, calls from the first floor to the eighth floor, and calls from the seventh floor to the ninth floor. Currently, users going from the 1st floor to the 10th floor and users going from the 1st floor to the 8th floor are in the car 2. In the downward direction, calls from the 8th floor to the 4th floor and calls from the 6th floor to the 1st floor are registered. A user going from the 7th floor to the 9th floor, a user going from the 8th floor to the 4th floor, and a user going from the 6th floor to the 1st floor will get on the car 2.

  FIG. 5 is a diagram for explaining a function of calculating the number of passengers. In FIG. 5, the diagram on the right side of the center arrow shows the calculated number of passengers.

  The control device 9 calculates the number of passengers in the traveling direction for each floor from the current position of the car 2 to the 10th floor. The number of passengers on departure from the 5th and 6th floors is the two currently on the car 2. Since there is one passenger in the car 2 on the seventh floor, the number of passengers on the seventh floor is three. Since one person gets off the car 2 on the 8th floor, the number of passengers on the 8th floor is 2. Similarly, the number of passengers on the 9th floor is calculated as one. The number of passengers on the 10th floor is calculated as 0.

  In the set route, the car 2 moves to the first floor after reaching the 10th floor. The control device 9 calculates the number of passengers in the reverse direction for each floor from the 10th floor to the first floor. In other words, in the reversal direction, one person rides on the car 2 on the 8th and 6th floors. Also, get off one person from the car 2 on the 4th and 1st floors. Therefore, the number of passengers when the car 2 leaves each floor is as shown in FIG.

  In the set route, the car 2 returns to the current position after reaching the first floor. The control device 9 calculates the number of passengers in the rear direction for each floor from the first floor to the fourth floor. The car 2 does not answer the call while moving from the first floor to the fourth floor. For this reason, the number of passengers when the car 2 departs from the first floor to the fourth floor is calculated as zero.

  Next, the control device 9 compares the calculated number of passengers with the set upper limit value of the number of passengers. The control device 9 transmits excess information to the group management device 1 when the number of passengers when leaving any floor exceeds the upper limit.

  The group management device 1 determines whether there is a car 2 in which the number of passengers exceeds the upper limit (S109). The group management device 1 excludes the car 2 whose number of passengers exceeds the upper limit from the assignment candidate car for the registered call (S110). In other words, the group management device 1 excludes the car 2 of the car from which the control device 9 has transmitted excess information from the allocation candidate cars. The group management device 1 selects the car 2 whose number of passengers is always equal to or lower than the upper limit value on the set route as an assignment candidate car.

  The group management apparatus 1 determines the car 2 to be assigned to the registered call from the cars 2 selected as the assignment candidate car (S111). The group management device 1 determines the assigned car based on the number of stops of the car 2 when the registered call is assigned and the upper limit value of the set number of stops. The group management device 1 may consider the waiting time of the user when determining the assigned car. The function for determining the assigned car will be described below with reference to FIG. The following description is an example of a function for determining an assigned car.

FIG. 6 is a flowchart for explaining the function of determining the assigned car.
When the group management device 1 receives a call registration request from the registration device 10, the group management device 1 registers a landing call and a destination call (S201). In addition, the group management apparatus 1 acquires information on the upper limit value of the number of stops set in S105 or S107 from the control apparatus 9.

  The group management device 1 calculates the number of stops when the call registered in S201 is assigned to each assignment candidate car (S202). Next, the group management apparatus 1 determines whether there is an allocation candidate car whose number of stops calculated in S202 is equal to or less than the upper limit value (S203). For example, when the car 2A is an assignment candidate car, the group management device 1 sets the number of stops of the car 2A when the call registered in S201 is assigned to the car 2A and the upper limit value of the number of stops acquired from the control device 9A. Compare. The group management device 1 performs the same comparison for each allocation candidate car, and specifies an allocation candidate car whose number of stops is equal to or less than the upper limit value. When there is no allocation candidate car whose number of stops is equal to or less than the upper limit value, the group management apparatus 1 adds 1 to the upper limit value of the number of stops for each allocation candidate car (S204). Then, the group management apparatus 1 performs the determination in S203 again. If there is an allocation candidate car whose number of stops is equal to or less than the upper limit value, the process proceeds to S205.

  In S205, the group management apparatus 1 determines whether there are a plurality of allocation candidate cars whose number of stops is equal to or less than the upper limit value. When there is only one allocation candidate car whose number of stops is equal to or less than the upper limit value, the group management apparatus 1 selects the allocation candidate car as an allocation car (S206). When there are a plurality of allocation candidate cars whose number of stops is equal to or less than the upper limit value, the group management apparatus 1 performs another evaluation on the allocation candidate cars. For example, the group management apparatus 1 calculates how much the waiting time of the user increases before and after the registered call is assigned for the plurality of assignment candidate cars. The group management device 1 selects an allocation candidate car with the smallest increase in waiting time as an allocation car (S207).

  The group management apparatus 1 transmits the determined allocation car information to the registration apparatus 10 that has transmitted the call registration request in S101 (S112). The registration device 10 causes the display device 12 to display the assigned car information received from the group management device 1. In addition, the group management device 1 transmits a response command to the control device 9 that controls the determined assigned car. For example, when the group management device 1 selects the car 2A as the assigned car, the group management device 1 transmits a response command to the control device 9A.

  If it is the elevator control system which has the said structure, based on the estimated temperature of the drive device 7, the upper limit of the number of boarding persons can be lowered | hung or the upper limit of the number of stops can be raised. Since necessary measures can be taken before the temperature of the drive device 7 actually increases, the drive device 7 can be prevented from falling into an overheated state. Even if the predicted temperature of the driving device 7 is equal to or higher than the threshold value, the speed of the car 2 does not decrease and the stop time of the car 2 does not become long. Convenience can be provided by preventing a significant drop in convenience.

  The group management device 1 according to the present embodiment has a function of registering a hall call and a destination call. The registration device 10 may be provided with a function of registering a hall call and a destination call. In such a case, the registration device 10 transmits the registered call information to the group management device 1.

  The control device 9 of the present embodiment has a function of predicting the temperature of the drive device 7. The function of predicting the temperature of the drive device 7 may be provided in the group management device 1. In such a case, for example, the control device 9 transmits information on the temperature detected by the temperature detector 8 to the group management device 1 in response to a request from the group management device 1.

  The control device 9 of the present embodiment has a function of determining the path of the car 2 necessary for predicting the temperature of the drive device 7. The function of determining a route may be provided in the group management apparatus 1. For example, when the group management device 1 has a function of predicting the temperature of the drive device 7, the function of determining a route is provided in the group management device 1.

  In addition, the control device 9 of the present embodiment sets a route so that the car 2 reciprocates between the upper terminal floor and the lobby floor. The control device 9 may set the route by other methods. For example, the future elevator usage situation is predicted from the past elevator usage situation. Specifically, the traffic flow to be generated is predicted using the traffic flow of the same day of the week and the same time zone up to the previous day. Then, the control device 9 sets a route based on the predicted traffic flow. The control device 9 predicts the temperature of the drive device 7 when the car 2 is moved along the set route.

  In addition, the control apparatus 9 does not need to be provided with the function which determines a path | route. In such a case, for example, the control device 9 accumulates information on the temperature detected by the temperature detector 8 in time series. The control device 9 predicts the temperature of the drive device 7 based on the tendency of the accumulated temperature information.

  The control device 9 according to the present embodiment includes a function for setting an upper limit value for the number of passengers and a function for setting an upper limit value for the number of stops. These setting functions may be provided in the group management apparatus 1. For example, when the group management device 1 has a function of predicting the temperature of the drive device 7, these setting functions are provided in the group management device 1.

  The control device 9 of the present embodiment has a function of calculating the number of passengers. The group management device 1 may be provided with a function for calculating the number of passengers.

  The temperature detector 8 of the present embodiment is provided in the driving device 7. The temperature detector 8 may be provided in the electric motor 6. The temperature detector 8 is provided in a specific device that requires temperature monitoring.

  Further, the control device 9 of the present embodiment predicts the temperature of the drive device 7 based on the temperature detected by the temperature detector 8. When the temperature detector 8 is not provided, the control device 9 may predict the temperature of the driving device 7 based on the initial temperature of the driving device 7. The initial temperature of the drive device 7 is registered in the control device 9 in advance.

  The control device 9 of the present embodiment sets the upper limit value of the number of passengers and the upper limit value of the number of stops based on the predicted temperature of the drive device 7. The control device 9 may set each upper limit value based on another value related to the temperature of the drive device 7. For example, the control device 9 sets an upper limit value based on the current effective value of the drive device 7.

  In such a case, the control device 9 calculates the effective current value of the drive device 7 when the car 2 is moved along the determined path. When the obtained current effective value is equal to or larger than the threshold value, the control device 9 sets the upper limit value of the number of passengers to a value smaller than the default value. When the current effective value is smaller than the threshold value, the control device 9 sets the upper limit value of the number of passengers to a default value. Moreover, the control apparatus 9 sets the upper limit of the number of stops to a value larger than the default value when the obtained current effective value is equal to or greater than the threshold value. When the current effective value is smaller than the threshold value, the control device 9 sets the upper limit value of the number of stops to a default value.

  The control device 9 of the present embodiment sets both the upper limit value of the number of passengers and the upper limit value of the number of stops based on the predicted temperature of the drive device 7. Even if the control device 9 only sets the upper limit value of the number of passengers, a certain effect can be obtained. Similarly, even if the control device 9 only sets the upper limit value of the number of stops, a certain effect can be obtained.

Embodiment 2. FIG.
FIG. 7 is a flowchart showing the operation of the elevator control system according to Embodiment 2 of the present invention. In this embodiment, an operation when an empty car is dispatched to any floor will be described. The empty car is the car 2 in which the responses to all calls are completed and no user is on board. For example, the operation shown in FIG. 7 is performed when the car 2 in which responses to all calls have been completed is waited on the lobby floor.

  The configuration of the elevator control system in the present embodiment is the same as any of the configurations disclosed in the first embodiment. The elevator control system in the present embodiment also has all the functions disclosed in the first embodiment.

  The group management device 1 determines whether or not it is necessary to dispatch an empty car to another floor (S301). When it is necessary to allocate an empty car to another floor, the group management device 1 transmits a vehicle allocation command to the control device 9 that controls the empty car. The dispatch command includes information on the floor to which the empty car is to be moved. In the following, the floor to which the empty car is moved is also referred to as the dispatch floor. When waiting for an empty car on the lobby floor, the lobby floor is the dispatch floor. The control device 9 predicts the temperature of the drive device 7 based on the dispatch command received from the group management device 1 (S302).

  The control device 9 first determines the path of the car 2 necessary for predicting the temperature of the drive device 7. For example, the control device 9 sets a route from when the car 2 leaves the current position to the vehicle allocation floor. Based on Equation 1, the control device 9 predicts the temperature T of the drive device 7 when the car 2 is moved along the determined path. The control device 9 determines whether or not the value of the predicted temperature T is equal to or higher than the threshold value Tth (S303).

  When the predicted temperature T is equal to or higher than the threshold value Tth, the control device 9 sets the delay time to a value larger than the default value. The delay time is a parameter for delaying the departure when the empty car departs toward the dispatch floor. The car 2 departs toward the vehicle allocation floor after the delay time has elapsed after the doors are completely closed after the responses to all calls have been completed. For example, 0 seconds is set as a default value for the delay time. If the predicted temperature T is equal to or higher than the threshold value Tth, the control device 9 sets the delay time to 10 seconds, for example, in order to delay the departure of the empty car for a certain time (S304). In S304, the delay time may be set to another value. For example, the delay time may be set to 15 seconds in S304.

  On the other hand, when the predicted temperature T is lower than the threshold value Tth (reference temperature), the control device 9 sets the delay time to a default value. In the above example, the control device 9 sets the delay time to 0 seconds (S305). In S305, the delay time may be set to another value. For example, the delay time may be set to 2 seconds in S305.

  The controller 9 dispatches the car 2 based on the delay time set in S304 or S305 (S306).

  If it is an elevator control system which has the said structure, it can prevent that the drive device 7 will be in an overheated state when dispatching an empty car. If the value of the predicted temperature T is smaller than the threshold value Tth, the empty car dispatch is started immediately. It can prevent that operating efficiency falls.

  The elevator control system according to the present invention can be applied to a system for inputting a destination floor before a user gets on a car.

  1 group management device, 2 cage, 3 counterweight, 4 main rope, 5 hoisting machine, 6 electric motor, 7 drive device, 8 temperature detector, 9 control device, 10 registration device, 11 input device, 12 display

Claims (7)

A registration means for registering a destination call;
A prediction means for predicting the temperature of a specific device;
When the temperature predicted by the prediction means is lower than the reference temperature, the upper limit value of the number of passengers in the car is set to the first value, and when the temperature predicted by the prediction means is equal to or higher than the reference temperature, First setting means for setting an upper limit value of the number of passengers to a second value smaller than the first value;
Computing means for computing the number of passengers in the car when the car is made to respond to the destination call registered by the registration means;
Exclusion means for excluding the car from allocation candidate cars for destination calls registered by the registration means when the number of passengers calculated by the calculation means exceeds the upper limit set by the first setting means;
When the temperature predicted by the prediction means is lower than the reference temperature, the upper limit value of the number of stops of the car is set to a third value, and when the temperature predicted by the prediction means is equal to or higher than the reference temperature, Second setting means for setting an upper limit value of the number of stops of the car to a fourth value larger than the third value;
Allocating means for deciding whether to allocate the car to a destination call registered by the registration means based on an upper limit value set by the second setting means when the car is an allocation candidate car;
Elevator control system with A registration means for registering a destination call;
A prediction means for predicting the temperature of a specific device;
When the temperature predicted by the prediction means is lower than the reference temperature, the upper limit value of the number of stops of the car is set to the first value, and when the temperature predicted by the prediction means is equal to or higher than the reference temperature, Setting means for setting an upper limit value of the number of stops to a second value larger than the first value;
Assigning means for deciding whether or not to assign the car to a destination call registered by the registering means based on an upper limit value set by the setting means;
Elevator control system with Route determination means for determining a route for causing the car to respond to the destination call registered by the registration means;
With
The prediction means, an elevator control system according to claim 1 or claim 2 for predicting the temperature of the device when moving the car along a route determined by the routing means. The route determination means determines the route so that the car returns to the current position after stopping at a destination floor, an upper terminal floor, and a lobby floor corresponding to the destination call registered by the registration means. The elevator control system according to 3 . A vehicle allocation means for moving the car, which has completed answering all calls, to the vehicle allocation floor after a delay time;
When the temperature predicted by the prediction means is lower than the reference temperature, the delay time is set to a fifth value, and when the temperature predicted by the prediction means is equal to or higher than the reference temperature, the delay time is set to the first value. Third setting means for setting a sixth value greater than a value of 5,
The elevator control system according to any one of claims 1 to 4 , further comprising: A registration means for registering a destination call;
A prediction means for predicting the effective current value of a specific device;
When the current effective value predicted by the prediction means is smaller than the threshold value, the upper limit value of the number of passengers in the car is set to the first value, and the current effective value predicted by the prediction means is equal to or greater than the threshold value. In this case, a first setting means for setting the upper limit value of the number of passengers in the car to a second value smaller than the first value;
Computing means for computing the number of passengers in the car when the car is made to respond to the destination call registered by the registration means;
Exclusion means for excluding the car from allocation candidate cars for destination calls registered by the registration means when the number of passengers calculated by the calculation means exceeds the upper limit set by the first setting means;
When the current effective value predicted by the prediction means is smaller than the threshold value, the upper limit value of the number of car stops is set to a third value, and the current effective value predicted by the prediction means is the threshold value. A second setting means for setting an upper limit value of the number of stops of the car to a fourth value larger than the third value when the value is equal to or greater than the value;
Allocating means for deciding whether to allocate the car to a destination call registered by the registration means based on an upper limit value set by the second setting means when the car is an allocation candidate car;
Elevator control system with A registration means for registering a destination call;
A prediction means for predicting the effective current value of a specific device;
When the current effective value predicted by the prediction means is smaller than the threshold value, the upper limit value of the number of car stops is set to the first value, and the current effective value predicted by the prediction means is equal to or greater than the threshold value. In the case, the setting means for setting the upper limit value of the number of stops of the car to a second value larger than the first value,
Assigning means for deciding whether or not to assign the car to a destination call registered by the registering means based on an upper limit value set by the setting means;
Elevator control system with

Images