JP2017052621A - Elevator system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continue operation without stopping at each floor in the event of malfunction of DCS control.SOLUTION: An elevator system according to one embodiment comprises: a landing floor registration device 21 installed at a car stop; a DCS control device 11 (a first control device); and a plurality of elevator control devices 12a, 12b, 12c, ... (second control devices). If DCS control by the DCS control device 11 malfunctions, a control device set as a master in advance among the elevator control devices 12a, 12b, 12c, ..., converts a first calling signal of a DCS control system, output from the landing floor registration device 21, into a second calling signal used in a group management control system.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to an elevator system including a landing destination floor registration device.

  Generally, a hall call button for registering a hall call is installed at a hall on each floor of a building. When the elevator user operates this hall call button, the car responds to the registration floor of the hall call. When the user gets into the car and operates the destination floor button on the car operation panel, the destination floor is registered, and the car moves to the destination floor.

  In recent years, apart from the above-described hall call buttons, an elevator system including a hall destination floor registration device (HDC: Hall Destination Controller) that can directly designate a destination floor at a hall has been put into practical use. Such an elevator system is called a “destination floor control system (DCS)”. The DCS selects an optimal car from a plurality of cars based on the destination floor registered by the user at the boarding area, and responds to the boarding area. In this case, transport efficiency is improved by letting users on the same destination floor get on the same car.

  Here, the DCS in which the landing destination floor registration devices are installed on all floors is referred to as “full DCS”. In full DCS, the destination floor can be registered at the landing on each floor, so there is no need for a destination floor button in the car.

Special table 2012-502864 gazette

  In the elevator system described above, when the DCS control fails, the operation is switched to the backup operation (emergency operation), and the operation is continued only with the specific unit. At that time, in the full DCS, since the user cannot designate the destination floor in the car, it is dealt with by stopping a specific car on each floor. However, such a floor stop operation is extremely inefficient in operation and causes trouble for users.

  The problem to be solved by the present invention is to provide an elevator system capable of continuing operation without stopping each floor when DCS control fails.

  An elevator system according to an embodiment includes a landing destination floor registration device installed at a landing, and a DCS control that takes into account a user's destination floor registered by the landing destination floor registration device. A first control device that selects an assigned car from the list and responds to the registration floor, and a plurality of second control devices that control the operation of each of the cars in accordance with an instruction from the first control device.

  When the DCS control by the first control device fails, a DCS control system in which a second control device set as a master in advance in each of the second control devices is output from the landing destination floor registration device The first call signal is converted into a second call signal used in the group management control system, and the operation is continued.

FIG. 1 is a block diagram illustrating a configuration of an elevator system according to an embodiment. FIG. 2 is a block diagram showing a functional configuration of the elevator control apparatus according to the embodiment. FIG. 3 is a flowchart showing the operation of the elevator system according to the embodiment. FIG. 4 is a specific example for explaining an operation operation at the time of DCS failure of the elevator system in the embodiment. FIG. 5 is a diagram showing a display example of the assigned car displayed on the landing destination floor registration device according to the embodiment. FIG. 6 is a diagram showing a display example of the destination floor displayed on the display of each unit in the embodiment.

  Hereinafter, embodiments will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of an elevator system according to an embodiment, and shows a configuration in which a plurality of elevators are group-managed. In addition, the elevator said here is mainly a passenger car, and when there are a plurality of vehicles, it is also referred to as “unit”. A car assigned a hall call is called an “assigned car” or an “assigned car”.

  This system includes one DCS control device 11 and a plurality of elevator control devices 12a, 12b, 12c. The DCS control device 11 and the elevator control devices 12a, 12b, 12c... Are connected by a group management control cable 13.

  The DCS control device 11 is a main controller for realizing a DCS control system. The DCS control device 11 has a control program for DCS, and assigns the optimum car from among the passenger cars 24a, 24b, 24c... Taking into account the user's destination floor registered by the landing destination floor registration apparatus 21. Select as a car and make it respond to the registered floor (the floor where the destination floor is registered).

  The landing destination floor registration device 21 is a device for a user to register a destination floor in advance at the landing. The landing destination floor registration device 21 has an operation unit 22 for registering a destination floor, and a display unit 23 for displaying a destination floor registered by the user and a car (assigned car) to which the destination floor is assigned. And have.

  Note that the destination floor registration method is generally based on the operation of the numeric keypad, but may be a method using an IC card, for example. Also, the landing destination floor registration device 21 may be installed at a location away from the landing.

  In the present embodiment, “full DCS” in which the landing destination floor registration device 21 is installed at the landing on each floor is assumed. These landing destination floor registration devices 21 are connected to the DCS control device 11 via the registration device cable 14 and also connected to the elevator control devices 12a, 12b, 12c... Via the registration device cable 15. Yes. Thereby, when the destination floor is registered by the landing destination floor registration device 21 of an arbitrary floor, the call signal of the DCS control system output from the landing destination floor registration device 21 is not only the DCS control device 11 but also the elevator control device. Also sent to 12a, 12b, 12c.

  The elevator control devices 12a, 12b, 12c,... Are provided corresponding to the cars 24a, 24b, 24c,. These elevator control devices 12a, 12b, 12c,... Are operated in a single car including a hoisting machine drive control and door opening / closing control (not shown) according to instructions from the DCS control device 11 during normal operation. Take control.

  The cars 24a, 24b, 24c... Move up and down in the hoistway by driving a hoisting machine (not shown). These cars 24a, 24b, 24c... Are not provided with a destination floor button for designating a destination floor.

  Further, to these elevator control devices 12a, 12b, 12c..., Display units 25a, 25b, 25c. The display 25a of the No. A machine is installed in the vicinity of the entrance / exit of the car 24a of the No. A car, and displays the destination floor and the driving direction of the car 24a. The same applies to the display units 25b, 25c. These indicators 25a, 25b, 25c... Are installed for each unit at the landing on each floor.

  In this embodiment, the elevator control devices 12a, 12b, 12c,... Are provided with an operation control function (group management control) used in a general group management system. When the DCS control fails, the elevator control device set in advance as a master among the elevator control devices 12a, 12b, 12c... Performs a backup operation by group management control. The “DCS control failure” refers to a state in which some abnormality has occurred in the DCS control device 11 and normal DCS control cannot be performed. At this time, the landing destination floor registration device 21 is normal, and the destination floor registration operation can be performed as usual.

  Below, the elevator control apparatus 12a is demonstrated as what is set as a master.

  FIG. 2 is a block diagram showing a functional configuration of the elevator control device 12a. Note that the elevator control devices 12b, 12c,... Of other units have the same configuration as the elevator control device 12a.

  The elevator control device 12a includes a signal conversion unit 31, an allocation control unit 32, an operation control unit 33, a first display control unit 34, and a second display as functions for continuing operation when DCS control fails. A control unit 35 and a reporting unit 36 are provided.

  When the DCS control system breaks down, the signal conversion unit 31 calls the DCS control system call signal (hereinafter referred to as the destination floor and registration floor (the floor where the destination floor is registered)) registered by the landing destination floor registration device 21. The first call signal) is converted into a call signal (hereinafter referred to as a second call signal) used in the group management control system.

  Based on the second call signal obtained by the signal conversion unit 31, the allocation control unit 32 selects an optimal car from among a plurality of cars 24a, 24b, 24c. To respond. The operation control unit 33 registers the destination floor in the assigned car selected by the assignment control unit 32, and operates to the destination floor after the assigned car responds to the registered floor.

  The first display control unit 34 displays the name of the assigned car number selected by the assignment control unit 32 on the display unit 23 provided in the landing destination floor registration device 21 as information on the car to be boarded by the user. To do. The second display control unit 35 displays the destination floor of the assigned car on a display corresponding to the assigned car among the indicators 25a, 25b, 25c... Provided for each unit.

  The reporting unit 36 reports to the outside that the DCS control system (DCS control device 11) has failed. The outside is, for example, a monitoring center (not shown) or a monitoring room of a building. The monitoring center is in a remote location and remotely monitors the operation state of the elevators existing in various locations via a communication network.

Next, the operation of the elevator system in the same embodiment will be described.
FIG. 3 is a flowchart showing the operation of the elevator system according to the embodiment.

  When the DCS control is normal, that is, when the DCS control device 11 is operating normally (No in step S10), the allocation control considering the user's destination floor registered by the landing destination floor registration device 21 Is executed (step S12).

  That is, when a user's destination floor is registered by operating the landing destination floor registration device 21, two sets of information on the destination floor and the registered floor (the floor on which the destination floor registration operation has been performed) are combined into one set. A first call signal is sent to the DCS controller 11. At this time, the destination floor registered by the user is displayed on the display unit 23 of the landing destination floor registration device 21.

  When the DCS control device 11 receives the first call signal, the DCS control device 11 selects the optimum car from among the cars 24a, 24b, 24c... Of each car based on the destination floor of the user included in the first call signal. Is elected as the assigned basket. In this case, DCS control considering the destination floor of the user is performed, and the optimum car that can be operated most efficiently is determined as the assigned car. When the assigned car is determined, the DCS control device 11 sends an instruction to the elevator control device corresponding to the assigned car among the elevator control devices 12a, 12b, 12c.

  Further, when the assigned car is determined, the type (car name) of the selected car corresponding to the assigned car is displayed on the display unit 23 of the landing destination floor registration device 21. The user sees this display, confirms the car he / she is on, and waits near the entrance / exit of the car. Since the destination floor of the user is already registered in the car, there is no need to specify a destination floor (car call registration operation) in the car.

  On the other hand, when the DCS control is out of order, that is, when some abnormality has occurred in the DCS control device 11 and is not operating normally (Yes in step S11), the elevator control device 12a set as a master in advance. As a result, an abnormality is reported to the outside (step S12), and the operation is switched to the backup operation (step S13).

  The “backup operation” here refers to an emergency operation that is performed when an abnormality occurs in the DCS control device 11 that is the main controller. The DCS control device 11 and the elevator control devices 12a, 12b, 12c... Are connected to each other by a group management control cable 13 so that data can be transmitted and received. When there is no signal response from the DCS control device 11, the elevator control device 12a as the master determines that some abnormality has occurred and switches to the backup operation.

  Note that the outside is, for example, a monitoring center (not shown) or a monitoring room of a building. When the report destination is a remote monitoring center, a DCS control failure is reported to the monitoring center via the communication network. When the report destination is a building monitoring room, a failure of DCS control is reported to the monitoring room by wire or wireless.

  Moreover, although the elevator control device 12a of No. A is set as a master, if the elevator control device 12a breaks down, one of the elevator control devices 12b, 12c. Notification and backup operation will be carried out.

  When switched to backup operation, the elevator control device 12a, which is the master, acquires the first call signal used in the DCS control system from the landing destination floor registration device 21 and holds it in an internal memory (not shown) (step S14). . This first call signal includes the user's destination floor and registered floor. The elevator control device 12a converts this first call signal into a second call signal used in the group management control system (step S15). This second call signal includes the driving direction and the registered floor.

  Specifically, in the elevator control device 12a, the user determines the driving direction from the relationship between the destination floor and the registered floor of the first call signal held in the internal memory. For example, when the registered floor is the first floor and the destination floor is the fourth floor, it is determined that the driving direction = upward. Conversely, when the registered floor is the fourth floor and the destination floor is the first floor, it is determined that the driving direction is downward. The elevator control device 12a generates the second call signal by adding the information on the “registered floor” obtained from the first call signal to the “driving direction” determined as described above.

  Next, the elevator controller 12a performs allocation control based on the converted second call signal (step S16). Specifically, the elevator control device 12a obtains an evaluation value when a second call signal is assigned to each of the cars 24a, 24b, 24c... Using a predetermined arithmetic expression, and among them, the highest evaluation is obtained. Select the car (optimum car) as the assigned car.

  Note that the “predetermined arithmetic expression” is an evaluation arithmetic expression using a technique such as neuro-fuzzy. However, the present invention is not particularly limited with respect to the method, and the assignment evaluation calculation is performed in consideration of the operation efficiency of the entire elevator, using a method used in general elevator group management control. . The “evaluation value” is an index representing the optimality when a hall call is assigned. This evaluation value indicates that the smaller the numerical value is, the higher the evaluation is, and the larger the numerical value is, the lower the evaluation is.

  When the assigned car is selected, the elevator controller 12a causes the assigned car to respond to the registration floor (the floor on which the registration operation of the destination floor has been performed) (step S17). In this case, the operation of the assigned car is controlled through the elevator control device corresponding to the assigned car in the elevator controllers 12a, 12b, 12c.

  That is, when the car 24a of the No. A car is selected as the assigned car, the operation of the car 24a is controlled by the elevator control device 12a of the No. A car as the master. On the other hand, for example, when the car 24b of Unit B is selected as the assigned car, an assignment command is sent from the elevator control device 12a as a master to the elevator control device 12b, and the elevator control device that has received this assignment command. The operation of the car 24b is controlled by 12b.

  In the following description, it is assumed that the car 24b of Unit B is selected as the assigned car.

  In the case where the car 24b of Unit B is selected as the assigned car, the elevator controller 12a sends the destination floor of the first call signal held in the internal memory to the elevator controller 12b of the Unit B, and the car 24b is registered as a car call (step S18). For example, if the fourth floor is registered as the destination floor, the fourth floor is registered as a car call for the car 24b.

  The timing of registering the destination floor (car call) in the assigned car may be, for example, when the assigned car is selected or when the assigned car responds (arrives) to the registered floor. .

  When the assigned car is selected, the elevator control device 12a displays the assigned car on the landing destination floor registration device 21 and displays the destination floor on the display 25b of the landing corresponding to the assigned car (step S19). ).

  Specifically, first, the elevator control device 12a selects, as the display destination, the landing destination floor registration device 21 in which the user has registered the destination floor operation from the landing destination floor registration devices 21 of each floor, and the landing destination floor. The assigned car information is sent to the registration device 21. As a result, the assigned car number (No. B) is displayed on the display unit 23 of the landing destination floor registration device 21 (see FIG. 5).

  Subsequently, the elevator control device 12a selects the display unit 25b of the B machine as the display destination from the display units 25a, 25b, 25c... Send the registered destination floor as a call. Thereby, the destination floor of the No. B machine is displayed on the display 25b (see FIG. 6).

  In this way, even if a DCS failure occurs, the user can be correctly guided to the assigned car by displaying the assigned car and the destination floor in the same manner as the DCS. When the car 24b of the B car that is the assigned car responds (arrives) to the registration floor, the elevator control device 12a opens the car 24b through the elevator control device 12b of the B car and makes the user get on. The car 24b is driven toward the destination floor (step S19). At this time, since the destination floor of the user is registered in the elevator car 24b of the B car, which is the assigned car, registration of the destination floor (registration of the car call) in the car is unnecessary.

  When the DCS control fails, an abnormality is reported, for example, to the monitoring center or the building monitoring room (step S12). The backup operation as described above is performed until the maintenance staff comes to the site and performs the recovery work after receiving the abnormality report. After the restoration of the DCS control, the operation of the cars 24a, 24b, 24c... Of each car is controlled by the elevator control devices 12a, 12b, 12c.

A specific example is shown in FIG.
Now, it is assumed that three (A to C) cars 24a to 24c are operating on each floor in the buildings on the first floor to the 15th floor. On each floor, at least one landing destination floor registration device 21 is installed. Usually, an assigned car is selected by DCS assignment control based on the user's destination floor registered by the landing destination floor registration device 21. In this case, an assigned car is selected so that users on the same destination floor get on the same car, thereby improving the transportation capacity.

  When such a DCS control system (DCS control device 11) fails, the backup operation is switched to the group management control. For example, as shown in FIG. 4, it is assumed that the user registers the fourth floor as the destination floor with the landing destination floor registration device 21 on the first floor. At this time, “4F” indicating the destination floor registered by the user is displayed on the display unit 23 of the landing destination floor registration device 21.

  Here, the first call signal of the DCS control system such as “Destination floor = 4th floor, Registration floor = 1st floor” is output from the landing destination floor registration device 21 on the first floor. This first call signal is received by a master elevator control device (for example, the elevator control device 12a) and converted into a second call signal used in the group management control system. In this example, since the registered floor is the first floor and the destination floor is the fourth floor, the driving direction = upward. Therefore, the first call signal is converted into a second call signal such as “driving direction = upward, registered floor = 1st floor”.

  Allocation control is performed using the second call signal. In this case, the destination floor is not considered, and for example, the car that can respond most quickly is selected from the car position and the driving direction of each car, and the second call signal is assigned to the optimum car.

  In the example of FIG. 4, the car 24b of Unit B is selected as the assigned car and responds to the registered floor on the first floor. At this time, the destination floor obtained from the first call signal is registered as a car call in the car 24b. As described above, the timing for registering the destination floor (car call) in the assigned car may be, for example, when the assigned car is selected or when the assigned car responds (arrives) to the registered floor. May be.

  When the assigned car is decided to be the B car 24b, as shown in FIG. 5, the display 23 of the 1st floor destination floor registration device 21 displays “4F” indicating the destination floor registered by the user. Instead, the symbol “B”, which is the name of the assigned car number, is displayed.

  Further, as shown in FIG. 6, in the landing on the first floor, for example, indicators 25 a, 25 b and 25 c are installed in the vicinity of landing doors 26 a, 26 b and 26 c of each unit. Among these indicators 25a, 25b, and 25c, the destination floor “4F” is displayed on the indicator 25b corresponding to the No. B machine.

  Thus, when the DCS control fails, the operation of each unit is continued by the group management control. Therefore, unlike general backup operation in which only the specific unit is stopped at each floor, the operation efficiency is not significantly reduced. In this case, the destination floor is displayed for each car as in the case of DCS, so that it is possible to continue driving while making it appear to the user as if the optimal car was assigned by DCS.

  According to at least one embodiment described above, it is possible to provide an elevator system capable of continuing operation without stopping each floor when DCS control fails.

  In addition, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 11 ... DCS control apparatus, 12a, 12b, 12c ... Elevator control apparatus, 13 ... Group management control cable, 14 ... Registration apparatus cable, 15 ... Registration apparatus cable, 21 ... Landing destination floor registration apparatus, 22 ... Operation part , 23 ... display unit, 24a, 24b, 24c ... car, 25a, 25b, 25c ... display unit, 26a, 26b, 26c ... landing door, 31 ... signal conversion unit, 32 ... allocation control unit, 33 ... operation control unit 34 ... 1st display control part, 35 ... 2nd display control part, 36 ... Notification part.

When the first control device for performing the DCS control fails, destination floor the second control device which is set in advance as a master in the respective second control device is outputted from the hall destination floor registration device It converts the first call signal DCS control system including the registration floor in a second call signal including the registered floor and driving directions used in the group control system to continue operating with.

Claims (6)

A landing destination floor registration device installed at the landing,
A first control device that selects an assigned car from a plurality of cars and responds to the registered floor by DCS control considering the destination floor of the user registered by the landing destination floor registration apparatus;
A plurality of second control devices for controlling the operation of each car according to the instructions of the first control device,
When the DCS control by the first control device fails, a DCS control system in which a second control device set as a master in advance in each of the second control devices is output from the landing destination floor registration device The first call signal is converted into a second call signal used in the group management control system, and the operation is continued. The second control device set as the master is
A signal conversion means for converting the first call signal of the DCS control system output from the hall destination floor registration device into the second call signal used in the group management control system;
Assignment control means for selecting an optimal car as an assigned car from among the cars based on the second call signal obtained by the signal converting means, and for responding to the floor in which the destination floor is registered; ,
The elevator system according to claim 1, further comprising: an operation control means for registering the destination floor in the assigned car selected by the assignment control means, and for driving to the destination floor after responding to the assigned car. The signal converting means is
The driving direction is determined from the relationship between the destination floor and the registered floor included in the first call signal, and the driving direction is added to the registered floor to convert it to the second call signal. The elevator system according to 2. The second control device set as the master is
The display unit provided in the landing destination floor registration device further includes first display control means for displaying the number of the assigned car selected by the assignment control means as information on a car to be boarded by the user. The elevator system according to claim 2, wherein The second control device set as the master is
A second display control means is further provided for displaying a destination floor of the assigned car on a display corresponding to the assigned car among a plurality of indicators provided for each of the cars. Item 3. The elevator system according to item 2. The second control device set as the master is
3. The elevator system according to claim 2, further comprising a reporting unit that reports to the outside that the DCS control has failed.

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