CN114867674A

CN114867674A - Elevator system

Info

Publication number: CN114867674A
Application number: CN202080087968.6A
Authority: CN
Inventors: 小出和谅
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2022-08-05
Also published as: JP7259998B2; WO2021140635A1; JPWO2021140635A1

Abstract

In an elevator system (1), control boards (3F) - (3F) and a group control board (2) are connected in a ring shape through a network (21). The control boards (3F) to (3F), the group control board (2), and the common board (8) are connected to each other by a network (24) to form a bus. For example, when the isolation detection unit (35) detects that the control board (3G) is isolated, a registration request from the landing operation panel (4FG) is forwarded to the control board (3G) via the network (24).

Description

Elevator system

Technical Field

The present invention relates to elevator systems.

Background

Patent document 1 describes a group management system. The system described in patent document 1 includes 8 subsystems. Each subsystem controls the car of the elevator. The 8 subsystems are connected in a ring.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 4-246076

Disclosure of Invention

Problems to be solved by the invention

In the system described in patent document 1, when the power supply of, for example, 2 subsystems is turned off for maintenance, the subsystems arranged therebetween are isolated from the network. The problem that the isolated subsystems cannot respond to calls and the overall operation efficiency of the system is greatly reduced exists.

The present invention has been made to solve the above problems. The invention aims to provide an elevator system capable of preventing operation efficiency from being greatly reduced.

Means for solving the problems

An elevator system of the present invention includes: a plurality of control boards including a first control board; a group management board connected to a plurality of control boards in a ring shape via a first network; a common substrate connected to the plurality of control substrates and the group management substrate via a second network to form a bus type; and a first landing device that sends a registration request for a call. The group management board includes: an allocation means for determining an allocation car from among cars controlled by a plurality of control boards in response to a registration request from a first landing device; a command unit that transmits a response command to the control board that controls the assigned car determined by the assignment unit via the first network; an isolation detection unit that detects that the first control board is isolated from the first network; and a transfer means that transfers the registration request from the first landing device to the first control board via the second network when the isolation detection means detects that the first control board is isolated.

Effects of the invention

In the elevator system of the present invention, a plurality of control boards and a group control board are connected in a ring shape by a first network. The plurality of control boards, the group management board, and the common board are connected to form a bus type through a second network. When the isolation detection means detects that the first control board is isolated, a registration request from the first landing device is forwarded to the first control board via the second network. In this elevator system, the operating efficiency can be prevented from being greatly reduced.

Drawings

Fig. 1 is a diagram showing an example of an elevator system according to embodiment 1.

Fig. 2 is a diagram for explaining the function of the group management board.

Fig. 3 is a flowchart showing an operation example of the elevator system according to embodiment 1.

Fig. 4 is a flowchart showing an operation example of the elevator system according to embodiment 1.

Fig. 5 is a flowchart showing an operation example of the elevator system according to embodiment 1.

Fig. 6 is a flowchart showing an operation example of the elevator system according to embodiment 1.

Fig. 7 is a flowchart showing an operation example of the elevator system according to embodiment 1.

Fig. 8 is a flowchart showing an operation example of the elevator system according to embodiment 1.

Fig. 9 is a flowchart showing another operation example of the elevator system according to embodiment 1.

Fig. 10 is a diagram showing an example of hardware resources of the group management board.

Fig. 11 is a diagram showing another example of the hardware resources of the group management board.

Detailed Description

Hereinafter, the detailed description will be given with reference to the drawings. Duplicate descriptions are appropriately simplified or omitted. In the drawings, the same reference numerals denote the same or equivalent parts.

Embodiment mode 1

Fig. 1 is a diagram showing an example of an elevator system 1 according to embodiment 1. Fig. 1 shows an example in which an elevator system 1 includes 4 elevator apparatuses. For example, the elevator system 1 includes an F machine, a G machine, an H machine, and an I machine as elevator apparatuses. The number of elevator devices provided in the elevator system 1 is not limited to 4. For example, the elevator system 1 may include 8 elevator apparatuses.

The elevator system 1 includes a group management board 2, control boards 3F to 3I, a landing operation panel 4FG, a landing operation panel 4HI, landing lamps 5, landing buttons 6FG, landing buttons 6HI, a relay board 7F, a relay board 7H, and a common board 8. Further, the elevator system 1 is provided with a network 21,

networks

22F and 22H,

networks

23F and 23H, and a network 24.

The group control board 2 controls the operation of the entire system. The group control board 2 is mounted on a group control disk. The control board 3F controls the operation of the machine No. F. For example, the car of the machine F is controlled by the control board 3F. The control board 3F is mounted on the control panel of the F-number machine. The control substrate 3G controls the operation of the machine No. G. For example, the car of the G car is controlled by the control board 3G. The control board 3G is mounted on the control panel of the G-plane.

The control board 3H controls the operation of the H-machine. For example, the car of the H-machine is controlled by the control board 3H. The control board 3H is mounted on the control panel of the H-machine. The control substrate 3I controls the operation of the machine I. For example, the car of the machine I is controlled by the control board 3I. The control board 3I is mounted on the control panel of the machine I.

The control boards 3F to 3I have the same functions as the group management function of the group management board 2. Priorities for executing the group management function are set in advance for the group management board 2 and the control boards 3F to 3I. Table 1 shows examples of setting of the priority.

[ Table 1]

Priority level	Substrate
			1	Group management board 2
2	Control substrate 3F
		3	Control substrate 3H
4	Control board 3G and control board 3I

In the example shown in table 1, the group control board 2 has the highest priority. The highest priority substrate is responsible for the master device (MST). The priority of the control substrate 3F is the second highest. The role of the substrate with the second highest priority is the backup master (BKMST). The priority of the control substrate 3H is third highest. The role of the substrate with the third highest priority is the spare slave (BKSLV). The priority of the other control substrates is lowest. The substrate with the lowest priority is responsible for the slave device (SLV).

The group control board 2 and the control boards 3F to 3I respectively have control parameters for setting the group control function to be active and inactive. For example, in each of the group control board 2, the control board 3F, and the control board 3H, the group control function is set to be effective by the control parameter in the initial setting. In each of the control boards 3G and 3I, the group management function is set to be disabled by the control parameter in the initial setting. In the elevator system 1, the group management function is executed by the floor on which the group management function is set to be active and which has the highest priority among the group management floor 2 and the control floors 3F to 3I. In the example shown in the present embodiment, the group management function is executed by the group management board 2 in principle. When the group control board 2 cannot perform the group control function any more, the role of the control board 3F is changed from BKMST to MST, and the control board 3F assumes the group control function.

The network 21 connects the group management board 2 and the control boards 3F to 3I in a ring topology. The network 21 may include a plurality of signal lines corresponding to the transmission direction. The physical layer of the Network 21 is implemented by, for example, a LAN (local area Network). In the example shown in fig. 1, the control board 3F is disposed between the group control board 2 and the control board 3G in the network 21. The control board 3G is disposed between the control board 3F and the control board 3H. The control board 3H is disposed between the control board 3G and the control board 3I. The control board 3I is disposed between the control board 3H and the group control board 2.

The landing operation panel 4FG is provided at a landing of the elevator. The landing operating panel 4FG is provided with an input device for a user to input a destination floor. The landing operation panel 4FG is provided with a display for displaying information to a user. The landing operation panel 4FG may be provided with a mechanical input device or a touch panel input device. The network 22F connects the hall operating panel 4FG, the control board 3F, and the group control board 2 in a bus topology.

The landing operation panel 4HI has the same function as the landing operation panel 4FG has. The landing operating panel 4HI is provided at a landing of the elevator. The landing operating panel 4HI includes an input device for a user to input a destination floor. The landing operating panel 4HI includes a display for displaying information to a user. The network 22H connects the hall operating panel 4HI, the control board 3H, and the group control board 2 in a bus type topology.

In the following description, the landing operation panel 4 is referred to as a landing operation panel 4 when it is not necessary to distinguish between the landing operation panel 4FG and the landing operation panel 4 HI. Similarly, the network 22F and the network 22H are referred to as the network 22 without distinguishing between them. The physical layer and the data link layer of the Network 22 are implemented by, for example, CAN (Controller Area Network). Fig. 1 shows an example in which an elevator system 1 includes 1 landing operating panel 4 for every two elevator devices. The elevator system 1 may include 1 landing operating panel 4 for every 4 elevator apparatuses.

The landing button 6FG is provided at a landing of the elevator. The landing buttons 6FG include an up button and a down button. The network 23F connects the landing button 6FG to the group control board 2 or the control board 3F via the relay board 7F. The relay board 7F switches the connection destination of the landing buttons 6FG to the group management board 2 or the control board 3F. The relay board 7F is mounted on the control panel of the machine F.

The landing button 6HI has the same function as the landing button 6FG has. The landing button 6HI is provided at a landing of the elevator. The landing buttons 6HI include an up button and a down button. The network 23H connects the hall buttons 6HI to the group management board 2 or the control board 3H via the relay board 7H. The relay board 7H switches the connection destination of the hall button 6HI to the group management board 2 or the control board 3H. The relay board 7H is mounted on the control panel of the H-machine.

In the following description, the landing button 6 is referred to as a landing button 6 when it is not necessary to distinguish between the landing button 6FG and the landing button 6 HI. Similarly, the network 23F and the network 23H are referred to as the network 23 without distinguishing between them. The physical layer of the network 23 is implemented by cables, for example. Fig. 1 shows an example in which an elevator system 1 includes 1 landing button 6 for every two elevator devices. The elevator system 1 may also include 1 landing button 6 per elevator apparatus.

Fig. 1 shows an example in which an elevator system 1 includes both a landing operating panel 4 and landing buttons 6. The elevator system 1 may be provided with only one of the landing operating panel 4 and the landing button 6. The hall operation panel 4 is an example of a hall device that transmits a call registration request. Similarly, the landing button 6 is an example of a landing device that transmits a call registration request.

The common substrate 8 performs input/output processing of common signals. The common signal is a signal required in all the machines included in the elevator system 1. For example, a building provided with the elevator system 1 is provided with an earthquake detector (not shown). The seismic signal output from the seismic detector is an example of the common signal. The seismic signals output from the seismic detectors are input to the common substrate 8. As another example, a building provided with the elevator system 1 is provided with a fire detector (not shown). The fire signal output from the fire detector is an example of the common signal. The fire signal output from the fire detector is input to the common substrate 8.

The network 24 connects the common board 8, the group control board 2, and the control boards 3F to 3I in a bus topology. The physical layer and the data link layer of the network 24 are implemented by, for example, CAN.

Fig. 2 is a diagram for explaining the function of the group control board 2. The group control board 2 includes a node determination unit 31, an assignment unit 32, a command unit 33, an exit detection unit 34, an isolation detection unit 35, a transfer unit 36, and a return detection unit 37. Hereinafter, the functions of the elevator system 1 will be described in detail with reference to fig. 3 to 8. Fig. 3 to 8 are flowcharts showing an operation example of the elevator system 1 according to embodiment 1. Fig. 3 shows an example of the operation of the substrate whose role is set to MST. For example, fig. 3 shows the operation of the group control board 2.

The node determination unit 31 transmits a join request to the control boards 3F to 3I via the network 21 (S101). The join request is an inquiry to a control board required for group management. For example, in S101, a join request is broadcast from the group management board 2 to the network 21. The processing in S101 is periodically performed in the group control board 2.

Fig. 4 shows an example of the operation of the control board whose role is not set to MST. For example, fig. 4 shows the operation of each of the control boards 3F to 3I. For example, the control board 3G determines whether or not a join request is received via the network 21 (S201). When the control board 3G receives the join request transmitted from the node determination unit 31 in S101, it is determined as yes in S201. If it is determined as yes in S201, the control board 3G transmits a join response to the group management board 2 via the network 21 (S202).

When the join request is transmitted in S101, the node determination unit 31 determines whether or not join responses are received from all the control boards 3F to 3I via the network 21 (S102). When the group control board 2 receives the join responses from all the control boards 3F to 3I, it is determined as yes in S102.

If it is not determined as "yes" in S108, it is determined as "no" in S103. The processing of S108 will be described later. If it is determined as no in S103, the node determination unit 31 transmits a signal indicating the responsibility to each control board to which the join response is transmitted via the network 21 (S105). In the following, the signals representing the duties are also referred to as "duty signals". In the example shown in table 1, the node determination unit 31 transmits a role signal indicating BKMST to the control board 3F in S105. In S105, the node determination unit 31 transmits a duty signal indicating the SLV to the control board 3G.

In the control board 3G which has transmitted the join response to the group management board 2 in S202, it is determined whether or not the responsibility signal is received (S203). When the control board 3G receives the responsibility signal transmitted from the node determination unit 31 in S105, it is determined as yes in S203. The control board 3G sets the responsibility of the own device based on the responsibility signal received in S203 (S204).

When the determination at S102 is yes, the group control board 2 performs normal allocation control (S106). Fig. 5 shows an example of the normal allocation control. The group control board 2 determines whether or not a call registration request is received from the hall operating panel 4 (S301). For example, in S301, a permission signal for permitting transmission of a signal is periodically broadcast from the group control board 2 to the network 22.

Fig. 6 shows an example of the operation of the landing operating panel 4. The user of the elevator can input the destination floor by performing a specific input operation on the hall operating panel 4. The landing operation panel 4 determines whether or not an input operation is performed (S401). When the user inputs a destination floor from the hall operating panel 4, it is determined as yes in S401. If yes is determined in S401, it is determined whether or not the hall operating panel 4 has received the permission signal (S402).

When the hall operating panel 4 receives the permission signal transmitted from the group control board 2 in S301, it is determined as yes in S402. When the determination at S402 is yes, the hall operating panel 4 transmits a call registration request to the group control board 2 to which the permission signal is transmitted via the network 22 (S403). The registration request transmitted from the landing operating panel 4 includes information on the destination floor.

When the group management board 2 receives the registration request transmitted from the hall operating panel 4 in S403, it is determined as yes in S301. If yes is determined in S301, the assigning unit 32 determines an assigned car for the registration request received in S301 (S302).

The group management board 2 receives the join response in S102. Therefore, in the group control board 2, a control board capable of communicating via the network 21 is specified. In S302, the assignment unit 32 determines an assigned car from cars controlled by a control board that can communicate via the network 21. If yes is determined in S102, the assignment unit 32 determines an assigned car from among the 4 cars controlled by the control boards 3F to 3I.

The command unit 33 transmits a response command to the control board controlling the assigned car determined by the assignment unit 32 via the network 21 (S303). For example, if the car of the G-number machine is the assigned car, the command unit 33 transmits a response command to the control board 3G via the network 21. The response instruction transmitted in S303 includes information of the destination floor. When the assignment unit 32 determines to assign a car, the instruction unit 33 transmits a response signal to the hall operating panel 4 to which the registration request was transmitted in S301 via the network 22 (S304). In S304, the response signal transmitted to the landing operating panel 4 includes information on the assigned car.

When the hall operating panel 4 transmits a registration request in S403, it is determined whether or not a response signal is received (S404). When the hall operating panel 4 receives the response signal transmitted from the command unit 33 in S304, it is determined as yes in S404. If it is determined as yes in S404, information on the assigned car is displayed on the display in the hall operating panel 4 based on the received response signal (S405). The user can know the assigned car by looking at the display of the hall operating panel 4.

In the control board 3G, it is determined whether or not a response command is received via the network 21 (S205 in fig. 4). When the control board 3G receives the response command transmitted from the command unit 33 in S303, it is determined as yes in S205. If it is determined as yes in S205, the control board 3G performs response control for transporting the user to the destination floor (S206). Thus, the user can ride the car of the G-number car as the assigned car and move to the destination floor.

In the group control board 2, it is determined whether or not a call registration request is received from the hall button 6 in the normal assignment control (S305 in fig. 5). When the user presses the landing button 6, a call registration request is transmitted from the landing button 6 to the group management board 2 via the network 23. When the group management board 2 receives the registration request transmitted from the hall button 6, it is determined as yes in S305. If it is determined as yes in S305, the assigning unit 32 determines an assigned car for the registration request received in S305 (S306).

In S306, the assignment unit 32 determines an assigned car from cars controlled by a control board that can communicate via the network 21. If it is determined as yes in S102, the assignment unit 32 determines an assigned car from among the 4 cars controlled by the control boards 3F to 3I.

The command unit 33 transmits a response command to the control board of the assigned car determined by the control assigning unit 32 via the network 21 (S307). For example, if the car of the G-number machine is the assigned car, the command unit 33 transmits a response command to the control board 3G via the network 21. The response command transmitted in S307 does not include information of the destination floor. When the assignment unit 32 determines to assign a car, the instruction unit 33 transmits a response signal to the hall button 6 that transmitted the registration request in S305 via the network 23 (S308).

In the landing button 6, the internal lamp is turned on in accordance with the response signal transmitted in S308. The user can see the lit landing button 6 and know that the call is registered.

When the control board 3G receives the response command transmitted from the command unit 33 in S307, it is determined as yes in S205 in fig. 4. If it is determined as yes in S205, response control for moving the car to the landing where the user is located is performed on the control board 3G (S206). Thus, the user can ride the car of the G-number car as the assigned car.

Next, an example of determination as no in S102 will be described. For example, when performing maintenance of the F-number machine, the power supply of the control panel of the F-number machine may be turned off. When the power supply to the control panel of the F-number machine is turned off, the control board 3F cannot perform the operation shown in fig. 4. Therefore, even if the group management board 2 transmits the join request in S101, the join response is not transmitted from the control board 3F to the group management board 2. In S102, the determination is no.

If it is determined as no in S102, the substrate exit detection unit 34 detects the substrate exit based on the received join response (S107). The exit board is a control board that cannot communicate via the network 21 among the control boards 3F to 3I. Even if the machine F is being maintained, join responses are transmitted from the control boards 3G to 3I to the group management board 2. Therefore, when the maintenance of the machine F is started, the ejection detection unit 34 detects the control board 3F as the ejected board in S107.

When it is determined as no in S102, the isolation detection unit 35 determines whether or not an isolated substrate is present based on the received join response (S108). The isolated board is a control board that cannot communicate via the network 21 even though the communication function is not stopped, among the control boards 3F to 3I. For example, if only 1 control board to which no join response is transmitted is provided, the isolation detection unit 35 determines no in S108. If it is determined as no in S108, the process proceeds to S103. In this case, the group control board 2 performs normal assignment control after excluding the exiting board from the control targets.

Next, an example in which the determination at S108 is yes will be described. Consider an example in which maintenance for machine number F and maintenance for machine number H are performed simultaneously. When the H-machine is to be maintained, the power supply of the control panel of the H-machine may be turned off. Therefore, when the maintenance of the machine F and the maintenance of the machine H are performed simultaneously, even if the group management board 2 transmits the join request in S101, the join response is not transmitted from the control board 3F to the group management board 2. Likewise, the join response is not transmitted from the control board 3H to the group management board 2. The ejection detection unit 34 detects the control substrate 3F and the control substrate 3H as the ejection substrates in S107.

The control board 3G is disposed between the control board 3F and the control board 3H. Therefore, when the control board 3F and the control board 3H exit from the network 21, the control board 3G also exits from the network 21. The control board 3G cannot receive the join request transmitted from the group management board 2 in S101. Therefore, the control substrate 3G does not transmit the join response. The ejection detection unit 34 detects the control board 3G as an ejected board in S107. Although the control board 3G cannot perform communication via the network 21, the communication function is not stopped.

The isolation detection unit 35 detects, for example, all substrates adjacent to each other as an isolated substrate, which are substrates that have exited. When the maintenance of the machine F and the maintenance of the machine H are performed simultaneously, the control board 3G is disposed between the control board 3F as the exit board and the control board 3H as the exit board. Therefore, in S108, the isolation detection unit 35 detects that the control board 3G is isolated from the network 21, that is, that there is an isolated board.

If it is determined as yes in S108, the node determination unit 31 transmits a role signal to each of the control boards 3F to 3I via the network 21 to which a response is added (S109). When the determination in S108 is yes, the group control board 2 starts the special assignment control (S110).

Fig. 7 shows an example of special allocation control. The group control board 2 determines whether or not a call registration request is received from the hall operating panel 4FG (S501). For example, in S501, a permission signal for permitting transmission of a signal is periodically broadcast from the group control board 2 to the network 22F. Further, the group control board 2 determines whether or not a call registration request is received from the hall operating panel 4HI (S502). For example, in S502, a permission signal for permitting transmission of a signal is periodically broadcast from the group control board 2 to the network 22H. The operations shown in fig. 6 are performed on the landing operation panel 4FG and the landing operation panel 4HI, respectively.

When the group management board 2 receives the registration request transmitted from the hall operating panel 4HI in S403, it is determined as yes in S502. The actions shown in S503 to S505 are the same as those shown in S302 to S304. When the determination of S502 is yes, the assignment unit 32 determines an assigned car from cars controlled by the control board that can communicate via the network 21 (S503).

The command unit 33 transmits a response command to the control board of the assigned car determined by the control assigning unit 32 via the network 21 (S504). After the assignment unit 32 determines to assign a car, the instruction unit 33 transmits a response signal to the hall operating panel 4HI transmitted with the registration request in S502 via the network 22H (S505). In S505, the response signal transmitted to the hall operating panel 4HI includes information on the assigned car.

On the other hand, when the group control board 2 receives the registration request transmitted from the hall operation panel 4FG in S403, it is determined as yes in S501. Even if the determination in S501 is yes, the assignment unit 32 does not determine an assigned car for the registration request. If it is determined as yes in S501, the transfer unit 36 transfers the registration request from the hall operation panel 4FG to the control board 3G, which is the isolated board, via the network 24 (S506). In S506, the transfer unit 36 transmits the registration request received in S501 to the control board 3G as it is.

For example, the control board 3G determines whether or not a registration request from the hall operating panel 4FG is received from the group control board 2 via the network 24 (S207). When the control board 3G receives the registration request transferred by the transfer unit 36 in S506, it is determined as yes in S207. If it is determined as yes in S207, the control board 3G transmits a response signal to the received registration request to the group control board 2 via the network 24 (S208). The response signal transmitted in S208 contains information of the car number responding to the registration request. When it is determined as yes in S207, the control board 3G performs response control for delivering the user to the destination floor (S209).

When the registration request is transferred in S506, the transfer unit 36 determines whether or not a response signal is received from the control board 3G as the transfer destination of the registration request via the network 24 (S507). When the group control board 2 receives the response signal transmitted from the control board 3G in S208, it is determined as yes in S507. When the determination at S507 is yes, the transfer unit 36 transfers the response signal from the control board 3G to the landing operating panel 4FG via the network 22F (S508). In S508, the transfer unit 36 transmits the response signal received in S507 to the hall operation panel 4FG as it is.

Fig. 8 shows another example of the special allocation control. Fig. 7 shows the operation of the group control board 2 when a registration request is received from the hall operating panel 4. In contrast, fig. 8 shows the operation of the group management board 2 when a registration request is received from the hall button 6.

The group control board 2 determines whether or not a call registration request is received from the hall button 6FG (S601). Further, the group control board 2 determines whether or not a call registration request is received from the hall button 6HI (S602). When the user presses the hall button 6HI, a call registration request is transmitted from the hall button 6HI to the group management board 2 via the network 23H. When the group management board 2 receives the registration request transmitted from the hall button 6HI, it is determined as yes in S602.

The actions shown in S603 to S605 are the same as those shown in S306 to S308. If yes is determined in S602, the assignment unit 32 determines an assigned car from cars controlled by the control board that can communicate via the network 21 (S603). The command unit 33 transmits a response command to the control board that controls the assigned car determined by the assignment unit 32 via the network 21 (S604). After the assignment unit 32 determines to assign a car, the instruction unit 33 transmits a response signal to the hall button 6HI transmitted the registration request in S602 via the network 23H (S605).

When the user presses the landing button 6FG, the determination in S601 is yes. Even if the determination in S601 is yes, the assignment unit 32 does not determine an assigned car for the registration request. If it is determined as yes in S601, the transfer unit 36 transfers the registration request from the landing button 6FG to the control board 3G, which is the isolated board, via the network 24 (S606). In step S606, the forwarding unit 36 transmits the registration request received in step S601 to the control substrate 3G as it is.

For example, the control board 3G determines whether or not a registration request from the hall button 6FG is received from the group control board 2 via the network 24 (S210). When the control board 3G receives the registration request transferred by the transfer unit 36 in S606, it is determined as yes in S210. If it is determined as yes in S210, the control board 3G transmits a response signal to the received registration request to the group control board 2 via the network 24 (S211). When it is determined as yes in S210, response control for moving the car to the landing where the user is located is performed on the control board 3G (S212).

After forwarding the registration request in S606, the transfer unit 36 determines whether or not a response signal is received from the control board 3G as the transfer destination of the registration request via the network 24 (S607). When the group control board 2 receives the response signal transmitted from the control board 3G in S211, it is determined as yes in S607. When the determination at S607 is yes, the forwarding unit 36 forwards the response signal from the control board 3G to the landing button 6FG via the network 23F (S608). In S608, the transfer unit 36 transmits the response signal received in S607 to the hall button 6FG as it is.

Next, an example will be described in which the determination in S108 is yes, and then the determination in S108 is no, or the determination in S102 is yes. As described above, when the maintenance of the machine F and the maintenance of the machine H are performed simultaneously, it is determined as yes in S108. When the maintenance of the machine F and the maintenance of the machine H are completed, the operations shown in fig. 4 are started in the control board 3F and the control board 3H. The control board 3G can communicate with the group control board 2 via the network 21.

The return detection unit 37 determines in S103 whether or not the isolated substrate is returned to the network 21. For example, when receiving the join response from the control board detected as the isolated board in S108, the return detection unit 37 detects that the control board has returned to the network 21 (yes in S103). If yes is determined in S103, the transfer unit 36 stops the transfer of the registration requests in S506 and S606 (S104). Thus, in S106, the normal allocation control is restarted.

In the example shown in the present embodiment, for example, even if the control board 3G is isolated from the network 21, the registration request from the hall operating panel 4FG is forwarded from the group control board 2 to the control board 3G. Therefore, even if the control board 3G is isolated from the network 21, the operation efficiency can be prevented from being greatly reduced.

When the control board 3G returns to the network 21, the transfer of the registration request is stopped. Therefore, the normal distribution control can be immediately restarted in response to the isolated substrate return network 21.

The transfer unit 36 transfers the registration request via the network 24. The network 24 is in principle a network for the transmission of common signals. For example, when receiving a seismic signal from a seismic detector, the common board 8 transmits the received seismic signal to the group control board 2 via the network 24. In this case, the seismic signal may be broadcast from the common substrate 8 to the network 24. As another example, when receiving a fire signal from a fire detector, the common board 8 transmits the received fire signal to the group control board 2 via the network 24. In this case, the fire signal may be broadcast from the common board 8 to the network 24.

Fig. 9 is a flowchart showing another operation example of the elevator system 1 according to embodiment 1. Fig. 9 shows another operation of the control board whose role is not set to MST. Another example of the isolation substrate detected by the isolation detector 35 will be described below with reference to fig. 9. The processing illustrated in S201 to S212 of fig. 9 is the same as the processing illustrated in S201 to S212 of fig. 4.

As described above, the group control board 2 periodically transmits the join request to the control boards 3F to 3I via the network 21. For example, the control board 3G determines whether or not a join request is received (S201). If it is determined as yes in S201, the control board 3G performs the processes shown in S202 to S206.

If it is determined as no in S201, the control board 3G determines whether or not the time T has elapsed without receiving the join request (S213). The time T is a time longer than the period in which the group management board 2 transmits the join request. If the join request from the group management substrate 2 has not been received until the time T elapses, the control substrate 3G transmits an isolated signal to the group management substrate 2 via the network 24 (S214). In S214, the isolation signal may be broadcast from the control board 3G to the network 24.

Upon receiving the isolation signal transmitted in S214, the isolation detection unit 35 detects that the control board that transmitted the isolation signal is isolated from the network 21. The isolation detection unit 35 may detect that the control board that transmitted the isolation signal is isolated from the network 21 when both adjacent boards receive the isolation signal from the board that is the exit board.

In the present embodiment, each of the parts shown by reference numerals 31 to 37 shows a function of the group control board 2. Fig. 10 is a diagram showing an example of hardware resources of the group management board 2. The group control board 2 includes, as hardware resources, a processing circuit 40 including a processor 41 and a memory 42, for example. The processor 41 executes the program stored in the memory 42 to realize the functions of the respective units shown by reference numerals 31 to 37 in the group management board 2.

The processor 41 is also referred to as a CPU (Central Processing Unit), a Central Processing Unit, a Processing Unit, an arithmetic Unit, a microprocessor, a microcomputer, or a DSP. As the memory 42, a semiconductor memory, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, or a DVD may be used. Semiconductor memories that can be used include RAM, ROM, flash memory, EPROM, EEPROM, and the like.

Fig. 11 is a diagram showing another example of the hardware resources of the group management board 2. In the example shown in fig. 11, the group control board 2 includes a processing circuit 40 including, for example, a processor 41, a memory 42, and dedicated hardware 43. Fig. 11 shows an example in which a part of the functions of the group control board 2 is realized by dedicated hardware 43. All the functions of the group control board 2 may be realized by dedicated hardware 43. As the dedicated hardware 43, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof can be employed.

The hardware resources of the control boards 3F to 3I are the same as those of the example shown in fig. 10 or 11. For example, the control board 3G includes a processing circuit including a processor and a memory as hardware resources. The control board 3G realizes the functions described in the present embodiment by executing the program stored in the memory by the processor. The control board 3G may include a processing circuit including a processor, a memory, and dedicated hardware as hardware resources. Part or all of the functions of the control board 3G may be realized by dedicated hardware.

Industrial applicability

The elevator system can be applied to a system in which a group management board and a plurality of control boards are connected to each other in a ring form via a network.

Description of the reference symbols

1: an elevator system; 2: a group management board; 3F to 3I: a control substrate; 4FG, 4 HI: a landing operating panel; 5: landing lamps; 6FG, 6 HI: a landing button; 7F, 7H: a relay substrate; 8: a common substrate; 21. 22F, 22H, 23F, 23H, 24: a network; 31: a node determination unit; 32: a distribution section; 33: an instruction unit; 34: an exit detection unit; 35: an isolation detection unit; 36: a forwarding unit; 37: a return detection unit; 40: a processing circuit; 41: a processor; 42: a memory; 43: dedicated hardware.

Claims

1. An elevator system, wherein the elevator system is provided with:

a plurality of control boards including a first control board;

a group management board connected to the plurality of control boards in a ring shape via a first network;

a common board connected to the plurality of control boards and the group management board as a bus type through a second network; and

a first landing device that sends a registration request for a call,

the group management board includes:

an assignment means for determining an assigned car from cars controlled by the plurality of control boards in response to a registration request from the first landing facility;

a command unit that transmits a response command to a control board that controls the assigned car determined by the assignment unit via the first network;

an isolation detection unit that detects that the first control board is isolated from the first network; and

a transfer unit that transfers a registration request from the first layer station device to the first control substrate via the second network when the isolation detection unit detects that the first control substrate is isolated.

2. The elevator system of claim 1,

the first control substrate, upon receiving a registration request from the first layer station device via the second network, transmits a response signal to the registration request to the group management substrate via the second network,

the forwarding unit forwards a response signal from the first control substrate to the first layer station device.

3. The elevator system of claim 1 or 2, wherein,

the elevator system further includes a return detection means for detecting that the first control board has returned to the first network after the isolation detection means detects that the first control board has been isolated,

the transfer unit stops transfer of the registration request when the return detection unit detects that the first control board has returned.

4. The elevator system of any of claims 1-3,

the group management baseboard periodically sends join requests to the plurality of control baseboards via the first network,

the first control substrate transmits a first signal to the group management substrate via the second network if it does not receive a join request from the group management substrate within a certain time,

the isolation detection unit detects that the first control board is isolated from the first network when receiving a first signal from the first control board.

5. The elevator system of any of claims 1-4,

the elevator system is further provided with a second landing device that transmits a call registration request,

even if the isolation detection means detects that the first control board is isolated, the allocation means determines an allocated car from among cars controlled by a control board with which the group management board can communicate via the first network in response to a registration request from the second hall device.

6. The elevator system of any of claims 1-5,

the common substrate is input with a second signal from the seismic detector,

the common baseboard sends a second signal from the seismic detector to the group management baseboard via the second network.