Central elevator management system

Abstract

According to an aspect, there is provided a central elevator management system comprising an Ethernet bus (110), a plurality of elevator system nodes (104A-104C, 106A-106C, 120A-120F, 126A-126C) communicatively connected to the Ethernet bus (110), and an elevator control unit (100, 112) communicatively connected to the Ethernet bus (110) and configured to communicate with the plurality of elevator system nodes (104A-104C, 106A-106C, 120A-120F, 126A-126C) via the Ethernet bus (110). The elevator control unit (100, 112) is configured to execute a configuration manager (204) providing a management interface for a configuration entity, wherein the configuration manager (204) is configured to receive, from the configuration entity, a configuration update associated with at least one elevator system node (104A-104C, 106A-106C, 120A-120F, 126A-126C); and transmit, to the at least one elevator system node (104A-104C, 106A-106C, 120A-120F, 126A-126C), configuration data based on the configuration update.

Description

Technical Field

[0001] This application relates to the field of elevator management systems. Background Technology

[0002] Traditionally, internal elevator communication systems—that is, communication systems for interconnected elevator components (control devices, sensors, actuators, etc.)—have been implemented using building automation networks, such as Controller Area Networks (CAN) or Local Operation Networks (LON). Typically, multiple independent communication systems with different protocol stacks exist within the same elevator system. Each of these communication systems is then connected to a central elevator control unit with its own independent communication interface.

[0003] If new elevator components and / or elevator functions are to be added to such a system in the future, it will be difficult because new communication interfaces with new protocol stacks will have to be added. In the current elevator system, different elevator components have their own configuration tools, making configuration changes difficult.

[0004] Therefore, it would be beneficial to have a solution that can mitigate at least one of these drawbacks. Summary of the Invention

[0005] According to a first aspect, a central elevator management system is provided. The system includes an Ethernet bus, a plurality of elevator system nodes communicatively connected to the Ethernet bus, and an elevator control unit communicatively connected to the Ethernet bus and configured to communicate with the plurality of elevator system nodes via the Ethernet bus. The elevator control unit is configured to execute a configuration manager that provides a management interface to a configuration entity, wherein the configuration manager is configured to receive configuration updates associated with at least one elevator system node from the configuration entity; and to transmit configuration data to at least one elevator system node based on the configuration updates.

[0006] In the first implementation, the configuration manager is configured to store information associated with a primary configuration that is associated with multiple elevator system nodes.

[0007] In the implementation of the first aspect, the configuration manager is configured to compare configuration updates associated with at least one elevator system node with the main configuration, and determine configuration data based on the comparison.

[0008] In the implementation of the first aspect, the configuration manager is configured to receive requests for the main configuration from the configuration entity and transmit information associated with the main configuration to the configuration entity.

[0009] In an implementation of the first aspect, the elevator control unit includes a router for connecting the elevator control unit to an external network, and the elevator control unit is configured to receive configuration updates from the external network.

[0010] In the first implementation, the configuration manager is configured to request data content from an external network, receive data content from an external network, and transmit the data content to at least one elevator system node.

[0011] In the first implementation, the data content includes at least one of real-time data streams and image data.

[0012] In the implementation of the first aspect, the configuration update is associated with at least one of the following: a new control mode for the elevator lights, audio data to be represented, image data to be displayed, video data to be displayed, elevator car behavior adjustment, and elevator car group behavior adjustment.

[0013] In the implementation of the first aspect, the Ethernet bus includes a point-to-point Ethernet bus.

[0014] In the implementation of the first aspect, the Ethernet bus includes a multi-point Ethernet bus.

[0015] In the implementation of the first aspect, the multiple elevator system nodes include at least one of a sensor, a fixed device, a display, a light controller, a door operator, an entrance door, an elevator drive unit, and a call-giving device.

[0016] In the implementation of the first aspect, the elevator control unit includes an elevator controller.

[0017] In the first implementation, the elevator control unit includes an elevator group controller (EGC).

[0018] According to the second aspect, an elevator system including the central elevator management system of the first aspect is provided. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In the drawings:

[0020] Figure 1A An elevator communication system according to an example embodiment is shown.

[0021] Figure 1B An elevator communication system according to another example embodiment is shown.

[0022] Figure 1C An elevator communication system according to another example embodiment is shown.

[0023] Figure 1D An elevator communication system according to another example embodiment is shown.

[0024] Figure 1E An elevator communication system according to another example embodiment is shown.

[0025] Figure 2 A signaling diagram for a central elevator management system according to an example embodiment is shown. Detailed Implementation

[0026] The following description illustrates a central elevator management system. This system includes an Ethernet bus, multiple elevator system nodes communicatively connected to the Ethernet bus, and an elevator control unit communicatively connected to the Ethernet bus and configured to communicate with the multiple elevator system nodes via the Ethernet bus. The elevator control unit is configured to execute a configuration manager that provides a management interface to configuration entities. The configuration manager is configured to receive configuration updates associated with at least one elevator system node from the configuration entities and to transmit configuration data to at least one elevator system node based on these configuration updates. The illustrated solution provides a simple and efficient solution, for example, for configuring various elevator system nodes via a single configuration entity. The configuration entity can be an internal entity connected to the Ethernet bus or an external entity located behind an external network (particularly an external Internet Protocol (IP) network) and connected to the elevator control unit via a router.

[0027] In one example embodiment, the various embodiments discussed below can be used in an elevator system comprising an elevator adapted and usable for transporting passengers between floors of a building in response to a service request. In another example embodiment, the various embodiments discussed below can be used in an elevator system comprising an elevator adapted and usable for automatically transporting passengers between floors in response to a service request.

[0028] Figure 1AA central elevator management system according to an example embodiment is illustrated. The elevator communication system includes an elevator control unit 100, for example, an elevator controller communicatively connected to an Ethernet bus 110 (e.g., a point-to-point Ethernet bus). The system may also include one or more multipoint Ethernet bus segments 108A, 108B (e.g., in 10BASE-T1S form) reachable from the elevator controller 100, and a plurality of elevator system nodes 104A, 104B, 104C, 106A, 106B, 106C coupled to the multipoint Ethernet bus segments 108A, 108B and configured to communicate via the multipoint Ethernet buses 108A, 108B. The elevator system nodes 104A, 104B, 104C, 106A, 106B, 106C can reach the elevator controller 100 via the multipoint Ethernet bus segments 108A, 108B. Elevator system nodes coupled to the same multipoint Ethernet bus segment can be configured such that one elevator system node is in operation at a time, while other elevator system nodes on the same multipoint Ethernet bus segment are in a high-impedance state.

[0029] In one example embodiment, the elevator communication system may include at least one connection unit 102A, 102B, 102C, which includes a first port connected to a corresponding multipoint Ethernet bus segment 108A, 108B and a second port connected to an Ethernet bus 110. Therefore, by using the connection units 102A, 102B, 102C, one or more multipoint Ethernet bus segments 108A, 108B can be connected to the Ethernet bus 110. The connection units 102A, 102B, 102C may refer to, for example, a switch. The Ethernet bus 110 may be, for example, a 100BASE-TX or 10BASE-T1L point-to-point Ethernet bus. The multipoint Ethernet bus segments 108A, 108B may include, for example, a 10BASE-T1S multipoint Ethernet bus.

[0030] In one example embodiment, elevator system nodes 104A, 104B, 104C, 106A, 106B, and 106C can be configured to connect to at least one of an elevator fixing device, an elevator sensor, an elevator safety device, an elevator control device, a fixing device, a display, a light controller, a door operator, an entrance door, an elevator drive unit, and a call dispensing device. Further, in one example embodiment, power to the nodes can be supplied using the same cable. In another example embodiment, elevator system nodes 104A, 104B, 104C, 106A, 106B, and 106C can include axis nodes, and multiple axis nodes can form an axis segment, such as multi-point Ethernet bus segments 108A and 108B.

[0031] In one example embodiment, the elevator controller 100 may include a router 112 for connecting the elevator controller 100 to an external network. Therefore, the elevator control node can be configured using a configuration entity external to the elevator communication system.

[0032] Figure 1B A central elevator management system according to another example embodiment is shown. This central elevator management system is... Figure 1A The system shown is the same, except that it also includes an elevator group controller 112. The elevator group controller 112 may include a router 114 for connecting the elevator group controller 112 to an external network (particularly an IP network). Therefore, the elevator control node can be configured using a configuration entity external to the elevator communication system. The group controller 112 can be operated to allocate elevator service requests from passengers waiting to be served in different elevator cars based on certain allocation criteria, such as minimizing elevator waiting time, minimizing elevator energy consumption, etc.

[0033] Figure 1C A central elevator management system according to another example embodiment is shown. The elevator communication system includes an elevator control unit 100, for example, an elevator controller communicatively connected to an Ethernet bus 110 (e.g., a point-to-point Ethernet bus). The system may also include one or more multipoint Ethernet bus segments 108A, 108B, 108C, 124A, 124B, 124C reachable from the elevator controller 100, and multiple elevator system nodes 104A, 104B, 104C, 106A, 106B, 106C, 120A-120F, 126A-126C configured to communicate via the multipoint Ethernet bus segments 108A, 108B, 108C, 124A, 124B, 124C, wherein the elevator system nodes 104A, 104B, 104C, 106A, 106B, 106C, 120A-120F, 126A-126C can reach the elevator controller 100 via the multipoint Ethernet bus segments 108A, 108B, 108C, 124A, 124B, 124C.

[0034] In one example embodiment, the system may include at least one connection unit 102A, 102B, which includes a first port connected to a multipoint Ethernet bus segment 108A, 108B and a second port connected to an Ethernet bus 110. Therefore, by using the connection units 102A, 102B, one or more multipoint Ethernet bus segments 108A, 108B can be connected to the Ethernet bus 110. The connection units 102A, 102B may refer to, for example, a switch, hub, or router. The Ethernet bus 110 may be, for example, a 100BASE-TX or 10BASE-T1L point-to-point Ethernet bus. The multipoint Ethernet bus segments 108A, 108B may include, for example, a 10BASE-T1S multipoint Ethernet bus.

[0035] In one example embodiment, elevator system nodes 120A-120F and 126A-126C can be configured to connect to at least one of an elevator fixing device, an elevator sensor, an elevator safety device, an elevator control device, a fixing device, a display, a light controller, a door operator, an entrance door, an elevator drive unit, and a call dispensing device. Further, in one example embodiment, power to the nodes can be supplied using the same cable.

[0036] The central management system may also include a point-to-point Ethernet bus 122, which provides connectivity to the elevator car 116 and various components associated with the elevator car 116. The elevator car 116 may include a connection unit 102F, such as a switch, to which one or more elevator car nodes 126A, 126B, 126C may be connected. In one example embodiment, elevator car nodes 126A, 126B, 126C may be connected to the connection unit 102F via a multipoint Ethernet bus segment 108C, thus forming an elevator car segment. In one example embodiment, the point-to-point Ethernet bus 122 may be located in the travel cable of the elevator car 116.

[0037] Communication within an elevator communication system is achieved using at least one point-to-point Ethernet bus and at least one multipoint Ethernet bus segment, allowing the formation of various segments. For example, elevator system nodes 120A and 120B can form the first-floor segment 124A, elevator system nodes 120C and 120D can form the second-floor segment 124B, elevator system nodes 120E and 120F can form the third-floor segment 124C, axle nodes 104A, 104B, and 104C can form the first axle segment 108A, axle nodes 106A, 106B, and 106C can form the second axle segment 108B, and elevator car nodes 126A, 126B, and 126C can form the elevator car segment 108C. Each segment is implemented using an independent multipoint Ethernet bus.

[0038] like Figure 1C As shown, axis nodes 106A, 106B, and 106C can interconnect axis segments 108B connected to axis nodes 106A, 106B, and 106C to landing segments 124A, 124B, and 124C. In other words, axis nodes 106A, 106B, and 106C can include or act as switches to landing segments 124A, 124B, and 124C. This provides a simple solution for adding new elevator system nodes to the elevator communication system. It also provides a solution where a single elevator system node can act as a switch or repeater to another multi-point Ethernet bus segment to nearby elevator system components, such as one or more call buttons, one or more displays, one or more destination control panels, one or more cameras, intercom devices, etc.

[0039] Figure 1D A central elevator management system according to another example embodiment is shown. This central elevator management system is... Figure 1C The system shown is the same, except that it also includes an elevator group controller 112. The elevator group controller 112 may include a router 114 for connecting the elevator group controller 112 to an external network. Therefore, the elevator control node can be configured using a configuration entity external to the elevator communication system.

[0040] Figure 1E An elevator communication system according to another example embodiment is shown. The elevator group may have more than one (three in this particular embodiment) elevator, each having an elevator car and a drive system adapted to drive the elevator car through floors. Furthermore, each elevator may have an independent elevator controller 100A, 100B, 100C to control the operation of the respective elevator.

[0041] The elevator controllers 100A, 100B, and 100C of different elevators can communicate with each other to share data. Figure 1E Different elevators can form an elevator group. One of the elevator controllers ( Figure 1E The elevator controller 100B is configured as an elevator group controller 112 for the elevator group. It may include group control software for allocating service requests from elevator passengers to the elevators of the elevator group based on some allocation criteria, such as minimizing elevator car waiting time, minimizing energy consumption, minimizing door-to-door time, and implementing priority processing (e.g., priority service for disabled persons).

[0042] Each elevator controller 100A, 100B, 100C is communicatively connected to an associated elevator Ethernet bus 110A, 110B, 110C, such as a point-to-point Ethernet bus. Elevator Ethernet buses 110B, 100C may include elevator system components similar to those of elevator Ethernet bus 100A. The system may also include one or more multipoint Ethernet bus segments 108A, 108B (e.g., in 10BASE-T1S form) reachable from elevator controller 100A, and multiple elevator system nodes 104A, 104B, 104C, 106A, 106B, 106C coupled to multipoint Ethernet bus segments 108A, 108B and configured to communicate via the multipoint Ethernet bus. Elevator system nodes 104A, 104B, 104C, 106A, 106B, and 106C can reach elevator controllers 100A, 100B, and 100C via multipoint Ethernet bus segments 108A and 108B. Elevator system nodes coupled to the same multipoint Ethernet bus segment can be configured such that one elevator system node is in operation at one time, while another elevator system node on the same multipoint Ethernet bus segment is in a high-impedance state.

[0043] The elevator communication system may include at least one connection unit 102A, 102B, 102C, such as a switch, to connect one or more multipoint Ethernet bus segments to Ethernet bus 110A. Ethernet bus 110A may be, for example, a 100BASE-TX or 10BASE-T1L point-to-point Ethernet bus. Multipoint Ethernet bus segments may include, for example, a 10BASE-T1S multipoint Ethernet bus.

[0044] In one example embodiment, elevator system nodes 104A, 104B, 104C, 106A, 106B, and 106C can be configured to connect to at least one of the elevator fixing devices, elevator sensors, elevator safety devices, elevator control devices, fixing devices, displays, light controllers, door operators, entrance doors, elevator drive units, and call dispensing devices of the respective elevator. Therefore, elevator system nodes 104A, 104B, 104C, 106A, 106B, and 106C can include axis nodes, and multiple axis nodes can form an axis segment, such as a multi-point Ethernet bus segment.

[0045] The elevator controller 100B may include a router 114 for connecting the elevator controller 100B to an external network (specifically an IP network). Therefore, the elevator control node can be configured using a configuration entity external to the elevator communication system.

[0046] pass Figure 1EIn this embodiment, the group behavior of elevator groups can be centrally managed by a configuration entity based on configuration updates received from that entity. This means that one or more allocation criteria for the elevator group can be changed or adjusted. For example, instead of minimizing door-to-door time, a more comfortable setup can be achieved by reducing car acceleration and / or travel speed. Alternatively or additionally, instead of minimizing elevator car waiting time, energy consumption can be reduced by adjusting the allocation strategy accordingly.

[0047] Figure 2 A signaling diagram of a central elevator management system according to an example embodiment is shown. The central management system may include systems already in use. Figure 1A-1E and one or more elements discussed in its description.

[0048] The elevator control unit 202, such as elevator controller 100 or elevator group controller 112, may include a configuration manager 204 for centralized management of elevator system nodes 206, 208. The configuration manager 204 can provide a management interface for the configuration entity and can be configured to receive configuration updates 210 associated with at least one elevator system node 206, 208 from the configuration entity 200. Generally, the configuration entity 210 is an entity that centrally performs elevator system management from a single location and can be implemented as a software application executable in a device or computer. The configuration entity 200 may be locally connected to the elevator control unit 202 or the configuration manager 204, for example via... Figure 1A-1E The internal Ethernet bus shown is connected via Bluetooth, etc. In another example embodiment, configuration entity 200 can be remotely configured and connected to elevator control unit 202 or configuration manager 204 from a service center or cloud-based service via an external network, such as the Internet. In another example embodiment, configuration entity 200 can even be an application running on a mobile device connected to elevator control unit 202 via a cellular network.

[0049] Configuration updates can be associated with any elevator system node or with parameters associated with an elevator system node that can be controlled by configuration manager 204. Configuration updates can be associated with at least one of, for example, a new control mode for elevator lights, audio data to be represented, image data to be displayed, video data to be displayed, elevator car behavior adjustments, and elevator car group behavior adjustments. Therefore, actual elevator system nodes can include, for example, sensors, fixtures, displays, light controllers, door operators, entrance doors, elevator drive units, call dispensing devices, etc.

[0050] Based on configuration update 210, configuration manager 204 is configured to transmit configuration data 212 to at least one elevator system node 206, 208. For example, configuration update 210 from configuration entity 200 may include one or more configuration requests with parameter data, and configuration manager 204 then generates the actual control data required by the elevator system nodes based on the configuration requests.

[0051] In one example embodiment, configuration manager 204 may be configured to store information associated with a primary configuration that is associated with multiple elevator system nodes in memory. In one example embodiment, configuration manager 204 may need to compare configuration update 210 associated with at least one elevator system node 206, 208 with the primary configuration and determine configuration data 212 based on the comparison. For example, configuration update 210 from configuration entity 200 may include a request to "increase X by 5%". Therefore, configuration manager 204 may first need to determine from memory what the current configuration is.

[0052] In another example embodiment, configuration manager 204 can be configured to receive requests for primary configurations from configuration entities and transfer information associated with the primary configurations stored in memory to configuration entity 200. This can occur, for example, when the configuration entity does not store the current primary configuration and needs to check the configuration from configuration manager 204 first.

[0053] In one example embodiment, configuration manager 204 can be configured to request data content from an external network, receive data content from an external network, and transmit the data content to at least one elevator system node 206, 208. The data content may include, for example, at least one of audio data, image data, video data, and real-time data streams. For example, configuration manager 204 may request the elevator system node itself or in response to a request from configuration entity 200 to display or play back the data.

[0054] At least one of the embodiments discussed above implements a solution in which the user experience associated with various elevator system nodes and components can be modified using a single tool. This also provides an efficient and simple solution for the overall management of elevator system nodes. Furthermore, distinct, node-specific configuration entities are not required because the elevator system's Ethernet-based communication network enables easy and centralized management.

[0055] Furthermore, at least some of the example embodiments discussed above can enable seamless transmission of any device data between elevator system devices and any other devices or systems. Furthermore, a common protocol stack can be used for all communications. At least some of the example embodiments discussed above can also provide solutions that offer high security and / or can be easily scaled.

[0056] The example embodiments can be implemented using software, hardware, application logic, or a combination of software, hardware, and application logic. The example embodiments may also store information relating to the various methods described herein. This information may be stored in one or more memories, such as a hard disk, optical disk, magneto-optical disk, RAM, etc. One or more databases may store information used to implement the example embodiments. The databases may be organized using data structures (e.g., records, tables, arrays, fields, graphs, trees, lists, etc.) included in one or more memories or storage devices listed herein. The methods described with respect to the example embodiments may include appropriate data structures for storing data collected and / or generated by the methods of the apparatus and subsystems of the example embodiments in one or more databases.

[0057] All or part of the example embodiments can be conveniently implemented using one or more general-purpose processors, microprocessors, digital signal processors, microcontrollers, etc., programmed according to the teachings of the example embodiments, as will be understood by those skilled in the art of computers and / or software. As those skilled in the software art will understand, programmers of ordinary skill can readily prepare suitable software based on the teachings of the example embodiments. Additionally, as those skilled in the electrical art will understand, the example embodiments can be implemented by preparing application-specific integrated circuits or by a suitable network interconnecting circuits of conventional components. Therefore, the examples are not limited to any particular combination of hardware and / or software. Stored on any or a combination of computer-readable media, the examples may include software for controlling components of the example embodiments, driving components of the example embodiments, enabling components of the example embodiments to interact with human users, etc. Such computer-readable media may also include computer programs for performing all or part of the processes performed in implementing the example embodiments (if the processes are distributed). The computer code means of the examples may include any suitable interpretable or executable code mechanism, including but not limited to scripts, interpreters, dynamic link libraries (DLLs), Java classes and applets, complete executable programs, etc. In the context of this document, "computer-readable medium" can be any medium or apparatus capable of containing, storing, communicating, propagating, or transmitting instructions for use by or in connection with an instruction execution system, apparatus, or device, such as a computer. A computer-readable medium can include a computer-readable storage medium, which can be any medium or apparatus that can contain or store instructions for use by or in connection with an instruction execution system, apparatus, or device (e.g., a computer). A computer-readable medium can include any suitable medium that participates in providing instructions to a processor for execution. Such media can take many forms, including but not limited to non-volatile media, volatile media, transmission media, etc.

[0058] Although the essential novel features applicable to its preferred embodiments have been shown, described, and pointed out, it should be understood that those skilled in the art can make various omissions and substitutions, as well as changes, to the form and details of the described apparatus and methods without departing from the spirit of the invention. For example, it is expressly intended that all combinations of those elements and / or method steps that perform substantially the same function in substantially the same manner to achieve the same result are within the scope of this disclosure. Furthermore, it should be recognized that structures and / or elements and / or method steps shown and / or described in any of the disclosed forms can be incorporated as a general matter of design choice into any other disclosed or described or suggested forms or embodiments.

[0059] Based on common knowledge in the art, the applicant hereby separately and individually discloses each individual feature described herein, as well as any combination of two or more such features, to the extent that such features or combinations can be performed on the basis of this specification as a whole, regardless of whether such features or combinations of features solve any problem disclosed herein, and without limiting the scope of the claims. The applicant indicates that the disclosed aspects / embodiments may include any such individual features or combinations of features. In view of the foregoing description, it will be apparent to those skilled in the art that various modifications can be made within the scope of this disclosure.

Claims

1. A central elevator management system, comprising: Ethernet bus (110); Multiple elevator system nodes (104A-104C, 106A-106C, 120A-120F, 126A-126C) are communicatively connected to the Ethernet bus (110). Elevator control units (100, 112) are communicatively connected to the Ethernet bus (110) and configured to communicate with the plurality of elevator system nodes (104A-104C, 106A-106C, 120A-120F, 126A-126C) via the Ethernet bus (110); The elevator control units (100, 112) are configured to execute the configuration manager (204), which provides a management interface for configuration entities. The configuration manager (204) is configured as follows: Store information associated with a primary configuration, which is associated with the plurality of elevator system nodes (104A-104C, 106A-106C, 120A-120F, 126A-126C); Receive configuration updates associated with the plurality of elevator system nodes (104A-104C, 106A-106C, 120A-120F, 126A-126C) from the configuration entity; The configuration update associated with each of the plurality of elevator system nodes (104A-104C, 106A-106C, 120A-120F, 126A-126C) is compared with the main configuration; and Based on this comparison, configuration data for each of the elevator system nodes is determined; and Based on the configuration update, each of the configuration data is transmitted to the corresponding elevator system node among the plurality of elevator system nodes (104A-104C, 106A-106C, 120A-120F, 126A-126C).

2. The central elevator management system according to claim 1, wherein, The configuration manager (204) is configured as follows: Receive requests for the main configuration from the configuration entity; and Information associated with the main configuration is transmitted to the configuration entity.

3. The central elevator management system according to any one of claims 1 to 2, wherein, The elevator control unit (100, 112) includes a router (114) for connecting the elevator control unit (100, 112) to an external network, and the elevator control unit (100, 112) is configured to receive the configuration update from the external network.

4. The central elevator management system according to claim 3, wherein, The configuration manager (204) is configured as follows: Request data content from the external network; Receive the data content from the external network; and The data content is transmitted to at least one elevator system node (104A-104C, 106A-106C, 120A-120F, 126A-126C).

5. The central elevator management system according to claim 4, wherein, The data content includes at least one of real-time data streams and image data.

6. The central elevator management system according to claim 1, wherein, The configuration update is associated with at least one of the following: a new control mode for elevator lights, audio data to be represented, image data to be displayed, video data to be displayed, elevator car behavior adjustment, and elevator car group behavior adjustment.

7. The central elevator management system according to claim 1, wherein, The Ethernet bus (110) includes a point-to-point Ethernet bus.

8. The central elevator management system according to claim 1, wherein, The Ethernet bus (110) includes a multi-point Ethernet bus.

9. The central elevator management system according to claim 1, wherein, The plurality of elevator system nodes (104A-104C, 106A-106C, 120A-120F, 126A-126C) include at least one of a sensor, a fixing device, a display, a light controller, a door operator, an entrance door, an elevator drive unit, and a call issuing device.

10. The central elevator management system according to claim 1, wherein, The elevator control unit (100, 112) includes an elevator controller (100).

11. The central elevator management system according to claim 1, wherein, The elevator control units (100, 112) include elevator group controllers (112).

12. An elevator system comprising a central elevator management system according to any one of claims 1 to 11.

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