Setting device, master machine of maintenance board, and setting method

Abstract

To provide an installation device capable of quickly performing installation work of a plurality of maintenance substrates, a master machine of the maintenance substrates, and a setting method.SOLUTION: A setting device is a device for performing initial setting in an internal network by a plurality of maintenance boards provided in an elevator, and includes a detection unit that detects that a first maintenance board among the plurality of maintenance boards is newly connected to the internal network, and a change unit that changes an IP address of the first maintenance board to a new setting address when the first maintenance board is detected by the detection unit.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present disclosure relates to a parent unit among a plurality of maintenance boards provided in an elevator, a setting device for performing setting work on the maintenance board, and a setting method for a plurality of maintenance boards. [Background technology]

[0002] Patent Document 1 discloses an initial setting method for monitored equipment. According to this initial setting method, a remote monitoring device acquires unique information for the monitored equipment. The remote monitoring device then acquires and registers initial settings corresponding to the unique information from a server. This initial setting method can reduce the burden on workers in initial setting the monitored equipment. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-106568 Summary of the Invention [Problem to be solved by the invention]

[0004] In the initial setting method described in Patent Document 1, the IP address, which is unique information, is set in advance so that it can be identified. However, it is possible that the same IP address is set for multiple monitored equipment at the time of shipment. In such cases, workers must individually set the IP addresses for multiple monitored equipment so that each can be identified. This increases the burden on workers.

[0005] The present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide an installation device, a parent unit of the maintenance board, and a setting method that can quickly perform installation work of multiple maintenance boards. [Means for solving the problem]

[0006] The setting device of the present disclosure is a device for performing initial settings on an internal network using multiple maintenance boards installed in an elevator, and is equipped with a detection unit that detects when a first maintenance board among the multiple maintenance boards is newly connected to the internal network, and a change unit that changes the IP address of the first maintenance board to a new setting address when the detection unit detects the first maintenance board.

[0007] The parent unit of the maintenance board according to the present disclosure is a parent unit among a plurality of maintenance boards provided in an elevator that is connected to an internal network, and is equipped with a detection unit that detects that a first child unit among the plurality of maintenance boards has been newly connected to the internal network, and a change unit that changes the IP address of the first child unit to a new setting address when the detection unit detects the first child unit.

[0008] The setting method disclosed herein is a method for initially setting a plurality of maintenance boards for inspecting elevators, and includes the following steps: a first step of connecting a setting device, which changes the IP address of a first maintenance board to a new setting address when it detects that a first maintenance board among the plurality of maintenance boards has been newly connected to an internal network, to a parent board among the plurality of maintenance boards, and writing setting information to the parent board using the setting device; a second step of placing a first child board among the plurality of maintenance boards at an installation location; a third step, which is performed after the first step, of connecting the parent board and the first child board with a connecting line to form an internal network including the parent board and the first child board; and a fourth step, which is performed after the third step, in which the setting device changes the IP address of the first child board. [Effects of the Invention]

[0009] According to the present disclosure, when a first maintenance board, which is a child board, is newly connected to the internal network, the IP address of the first maintenance board is changed to a new setting address, which allows for the installation of multiple maintenance boards to be carried out quickly. [Brief explanation of the drawings]

[0010] [Figure 1]1 is a schematic diagram of a building to which the maintenance system according to the first embodiment is applied. [Figure 2] 1 is a functional block diagram of a maintenance system according to a first embodiment. [Figure 3] 4 is a flowchart showing an operation performed by the setting device in the first embodiment. [Figure 4] FIG. 2 is a diagram showing a connection relationship of the maintenance system in the first embodiment. [Figure 5] FIG. 2 is a diagram showing a connection relationship of the maintenance system in the first embodiment. [Figure 6] FIG. 2 is a diagram showing a connection relationship of the maintenance system in the first embodiment. [Figure 7] FIG. 2 is a diagram showing a connection relationship of the maintenance system in the first embodiment. [Figure 8] FIG. 2 is a diagram showing a connection relationship of the maintenance system in the first embodiment. [Figure 9] FIG. 2 is a diagram showing a connection relationship of the maintenance system in the first embodiment. [Figure 10] FIG. 2 is a diagram showing a connection relationship of the maintenance system in the first embodiment. [Figure 11] 1 is a flowchart showing an outline of a setting method according to the first embodiment. [Figure 12] FIG. 10 is a functional block diagram of a maintenance system according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] The embodiments of the present disclosure will be described with reference to the accompanying drawings. In each drawing, the same or corresponding parts are designated by the same reference numerals. Duplicate descriptions of these parts will be appropriately simplified or omitted.

[0012] Embodiment 1 Fig. 1 is a schematic diagram of a building to which the maintenance system according to the first embodiment is applied. Fig. 2 is a functional block diagram of the maintenance system according to the first embodiment.

[0013] FIG. 1 shows a plurality of escalators 50, which are an example of elevators to which the maintenance system 1 is applied. Building B has a plurality of floors. Escalators 50 are provided from the upper floors to the lower floors among the plurality of floors. Escalators 50 are provided with an entrance / exit 51a on the upper floor and an entrance / exit 51b on the lower floor. Passengers move between entrance / exit 51a on the upper floor and entrance / exit 51b on the lower floor by riding on steps (not shown).

[0014] For example, the multiple escalators 50 are provided so as to be connected in the vertical direction. That is, the lower floor entrance / exit 51b of the upper escalator 50 and the upper floor entrance / exit 51a of the lower escalator 50 are adjacent to each other.

[0015] Escalator 50 is provided with an upper machine room 52 and a lower machine room 53. Although not shown in the figure, for example, the upper machine room 52 is provided with a sprocket for moving the steps, a drive machine, and a control panel for escalator 50. Although not shown in the figure, the lower machine room 53 is provided with a sprocket for moving the steps of escalator 50.

[0016] The maintenance system 1 is a system for performing maintenance management of a plurality of escalators 50. The maintenance system 1 includes a plurality of maintenance boards 2, a setting device 10, a reporting device 20, and an information center device 30.

[0017] The multiple maintenance boards 2 correspond to the multiple escalators 50, respectively. The maintenance boards 2 are provided in the upper machine room 52 or the lower machine room 53 of the corresponding escalator 50. For example, the maintenance boards 2 are connected to the control panel of the corresponding escalator 50. The maintenance boards 2 can detect abnormalities in the escalators 50 based on signals from sensors provided in the corresponding escalators 50 or from the corresponding control panel. The multiple maintenance boards 2 are wired and connected to each other by connection lines 21, which are signal lines, so that they can communicate with each other.

[0018] The setting device 10 is a maintenance terminal carried by an on-site worker. For example, the setting device 10 is a laptop computer, a smartphone, or the like. The setting device 10 is connected to a parent unit among the multiple maintenance boards 2 when the maintenance system 1 is installed. The reporting device 20 is provided in the upper machine room 52 of the escalator 50, which is the same as the parent unit of the maintenance board 2. The reporting device 20 is connected by wire to the parent unit among the multiple maintenance boards 2. The information center device 30 is provided in a maintenance company that maintains and manages the multiple escalators 50. The information center device 30 is capable of communicating with the reporting device 20 via a network.

[0019] As shown in Figure 2, in the maintenance system 1, multiple maintenance boards 2 form an internal network N1. The internal network N1 is indicated by a dashed line. The reporting device 20 relays between the parent unit 2a of the maintenance board 2 and the information center device 30. An external network N2 is formed by multiple child units 2b of the maintenance board 2, the parent unit 2a, the reporting device 20, and the information center device 30. The external network N2 is indicated by a dashed line.

[0020] If any of the multiple maintenance boards 2 detects an abnormality in the escalator 50, the maintenance board 2 transmits a notification regarding the abnormality to the information center device 30 via the notification device 20. In this way, the maintenance system 1 detects an abnormality in the internal network N1 and notifies the information center device 30 of the abnormality via the notification device 20.

[0021] When the maintenance system 1 is installed in building B, multiple maintenance boards 2 are installed on each of the multiple escalators 50 that have already been installed. All of the multiple maintenance boards 2 have the same configuration. At the time of installation, all of the multiple maintenance boards 2 remain in their initial settings at the time of shipment. For example, the IP addresses of the multiple maintenance boards 2 are initially set to specific addresses at the time of shipment. In the following, an example in which the IPv4 protocol is used will be described.

[0022] When the maintenance system 1 is installed, the setting device 10 writes setting information about the corresponding escalator 50 to each of the multiple maintenance boards 2. For example, the setting information includes information such as the number of steps of the escalator 50, the length of the handrails, the model, and the floor on which the escalator is installed.

[0023] If the setting information were to be written to each maintenance board 2 one by one, the work would take time and effort. That is, if a worker were to carry setting device 10 to the installation location of the maintenance board 2 and perform the writing process each time, the worker would have to travel, which would be time-consuming. Furthermore, if the setting information were to be written to the maintenance board 2 in advance of installation, there is a risk that the setting information and the escalator 50 to be installed would be incorrect.

[0024] On the other hand, it is also possible to adopt a method in which after connecting all of the multiple maintenance boards 2 to the internal network N1, the setting device 10 is connected to the internal network N1 and the writing process of the setting information is performed on the internal network N1. However, in this case, since all of the IP addresses of the multiple maintenance boards 2 are the same address at the time of shipment, it becomes difficult to identify the multiple maintenance boards 2 on the internal network N1.

[0025] Therefore, a method for configuring multiple maintenance boards 2 employs a technique of connecting the maintenance boards 2 to the internal network N1 in order. The configuration device 10 performs a process of changing the IP addresses of the maintenance boards 2 in accordance with the order and writing configuration information in accordance with the order. The configuration device 10 is equipped with a detection unit 11, a change unit 12, and a configuration unit 13 as functions for performing this process. The number of multiple maintenance boards 2 to be configured this time is input into the configuration unit 13 of the configuration device 10 by an operator. Configuration information corresponding to each of the multiple maintenance boards 2 to be configured this time is input into the configuration unit 13 of the configuration device 10.

[0026] The process performed when the maintenance system 1 is installed will be described with reference to FIG. FIG. 3 is a flowchart showing the operation performed by the setting device according to the first embodiment.

[0027] The flowchart in Figure 3 starts when the setting device 10 and the parent unit 2a of the maintenance board 2 are connected so that they can communicate with each other. At the start, the internal network N1 includes the setting device 10 and the parent unit 2a. The maintenance boards 2 other than the parent unit 2a are not connected to the internal network N1. Note that the parent unit 2a may be the maintenance board 2 that is first connected to the setting device 10. In other words, any maintenance board 2 may be selected as the parent unit 2a regardless of its installation location.

[0028] In step S01, the change unit 12 of the setting device 10 changes the IP address of the master unit 2a to the IP address for the master unit.

[0029] Thereafter, in step S02, the worker sets the setting device 10 to an initial setting mode. At this time, the worker may input the number of child units of the maintenance board 2 to be set.

[0030] Thereafter, in step S03, the detection unit 11 of the setting device 10 determines whether a new device has been connected to the internal network N1, specifically, whether a new maintenance board 2 has been connected to the internal network N1. If no device has been connected in step S03, the operation of step S03 is repeated.

[0031] In step S03, if the detection unit 11 detects that a new device has been connected to the internal network N1, the operation of step S04 is performed. For example, when an operator connects one slave device 2b of the multiple maintenance boards 2 to the internal network N1, the operation of step S04 is performed. In step S04, the change unit 12 of the setting device 10 determines whether the IP address of the device detected by the detection unit 11 is a specific IP address. At this time, the shipping address is set to the specific IP address.

[0032] If the IP address of the detected device is a specific IP address in step S04, the change unit 12 changes the IP address of the child device 2b of the maintenance board 2, which is the device, to a setting address in step S05. The setting address is set so that there is no duplication within the internal network N1. For example, the setting address is the fourth octet of the IP address of the parent device 2a plus a setting number. The setting number is the number of child devices of the maintenance board 2 that are already connected to the internal network N1.

[0033] After that, in step S06, the setting unit 13 writes setting information corresponding to the number of maintenance boards 2 that have already been connected to the maintenance boards 2 detected in step S03.

[0034] Thereafter, in step S07, the setting unit 13 determines whether or not the setting information has been written to all of the maintenance boards 2. At this time, if the number of maintenance boards 2 to which the setting information has already been written reaches the number of child units of the initially set maintenance board 2, the setting unit 13 determines that the setting information has been written to all of the maintenance boards 2.

[0035] In step S07, if there is a maintenance board 2 to which setting information has not yet been written, the operations from step S03 onwards are repeated.

[0036] If it is determined in step S07 that the setting information has been written to all of the maintenance boards 2, the operation of the flowchart ends.

[0037] If the IP address of the device detected in step S04 is not a specific IP address, the operations from step S07 onwards are carried out.

[0038] Next, specific examples of IP addresses to be set will be described with reference to FIGS. 4 to 10 are diagrams showing the connection relationships of the maintenance system according to the first embodiment.

[0039] Figure 4 shows the IP addresses of each device in the initial state before multiple maintenance boards 2 are installed. In this example, the maintenance boards 2 include parent device 2a and child devices 2b, 2c, 2d, and 2e. In the initial state, the IP addresses of all maintenance boards 2 are the shipping address "192.168.0.1".

[0040] 5 shows a state in which the setting device 10 and the parent device 2a are connected by wire as an internal network N1. The setting device 10 changes the IP address of the parent device 2a to "192.168.0.10," which is different from the shipping address. Note that any address may be set as the IP address of the parent device 2a, as long as adding any natural number to the fourth octet does not result in the shipping address.

[0041] FIG. 6 shows the state after FIG. 5 when the first child device 2b is connected to the parent device 2a via a wired connection. At this time, the first child device 2b is newly added to the internal network N1. The setting device 10 detects the first child device 2b and changes its IP address to a setting address. At this time, since one child device of the maintenance board 2 is connected to the internal network N1, the setting device 10 sets "192.168.0.11", which is obtained by adding the setting number "1" to the fourth octet of the IP address of the parent device 2a, as the setting address of the first child device 2b. The setting device 10 writes the setting information corresponding to the first child device to the first child device 2b.

[0042] 7, the second child device 2c is connected to the internal network N1 via a wired connection. The setting device 10 changes the IP address of the second child device 2c to the setting address "192.168.0.12." The setting device 10 writes the setting information corresponding to the second child device 2c to the second child device 2c.

[0043] 8, the third child device 2d is connected to the internal network N1 via a wired connection. The setting device 10 changes the IP address of the third child device 2d to the setting address "192.168.0.13." The setting device 10 writes the setting information corresponding to the third child device 2d to the third child device 2d.

[0044] Thereafter, as shown in FIG. 9, the fourth child device 2e is connected to the internal network N1 via a wired connection. The setting device 10 changes the IP address of the fourth child device 2e to the setting address "192.168.0.14." The setting device 10 writes the setting information corresponding to the fourth child device 2e to the fourth child device 2e. After that, since the setting information has been written for the set number of times, the setting device 10 ends the setting mode.

[0045] 10, the worker then communicably connects the master unit 2a and the notification device 20. In this state, the internal network N1 is connected to the external network N2.

[0046] Next, a method for setting up the maintenance system 1 will be described with reference to FIG. FIG. 11 is a flowchart showing an outline of the setting method according to the first embodiment.

[0047] In the preliminary process of step S11, the worker performs settings on the setting device 10, including the number of child units of the maintenance board 2 to be set.

[0048] Thereafter, in the first process of step S12, the worker connects the setting device 10 and the master unit 2a so that they can communicate with each other, and writes setting information into the master unit 2a using the setting device 10.

[0049] Thereafter, in the second process of step S13, the worker places the first child unit 2b in the installation location. Note that the work of step S13 may be performed before step S12.

[0050] After the first and second steps, in the third step of step S14, an operator connects the parent machine 2a and the child machine 2b with a connection line 21. For example, the connection line 21 is a LAN cable. In this state, the parent machine 2a and the child machine 2b are included in the internal network N1.

[0051] Thereafter, in the fourth process of step S15, the setting device 10 changes the IP address of the first child device 2b.

[0052] Thereafter, in the fifth process of step S16, the setting device 10 writes the setting information into the first child device 2b.

[0053] Thereafter, in step S17 and subsequent steps, the worker sequentially connects the connection lines 21 to the plurality of maintenance boards 2 until all of the maintenance boards 2 are connected to the internal network N1. That is, the work from step S13 onward is repeated until all of the maintenance boards 2 are connected to the internal network N1.

[0054] If all of the maintenance boards 2 are connected to the internal network N1 in step S17, the worker connects the internal network N1 to the external network N2 in step S18. After that, the worker ends the setting method shown in the flowchart.

[0055] According to the first embodiment described above, the setting device 10 has the functions of a detection unit 11 and a change unit 12. When it is detected that a first maintenance board, which is a child unit 2b, has been newly connected to the internal network N1, the change unit 12 changes the IP address of the first maintenance board to a new setting address. This makes it possible to avoid an event where the IP addresses of the maintenance boards 2 within the internal network N1 are duplicated with the shipping addresses. As a result, the installation work of multiple maintenance boards 2 can be performed quickly.

[0056] Furthermore, if the IP address of a first maintenance board newly connected to the internal network N1 is not the shipping address, the change unit 12 does not change the IP address of the first maintenance board. If the IP address of a first maintenance board newly connected to the internal network N1 is the shipping address, the change unit 12 changes the IP address of the first maintenance board to a configuration address. Therefore, even if a device other than the first maintenance board and maintenance board 2 that does not need to be configured is connected to the internal network N1, the setting device 10 can prevent the IP address of the device from being changed.

[0057] Furthermore, the change unit 12 adds a setting number to the fourth octet of the IP address of the parent device 2a to obtain the setting address. In particular, the setting number may be the number of child devices of the maintenance board 2 that are already connected to the internal network N1. This eliminates the need for a worker to set a setting address for each device. As a result, the installation work can be carried out reliably and quickly.

[0058] The maintenance system 1 is set up using a setting device 10. A worker installs the parent unit 2a of the maintenance board 2 and the child unit 2b, which is the first maintenance board, by performing steps 1 to 4. In particular, in step 3, the worker simply connects the connection line 21, and the setting device 10 changes the IP address of the child unit 2b. This allows the worker to quickly install multiple maintenance boards 2.

[0059] The setting method also includes a fifth step. This allows the setting information to be written automatically during the installation work. Furthermore, by paying attention only to the order in which the connection wires 21 are connected, the corresponding setting information can be written to the correct maintenance board 2.

[0060] The functions of the detection unit 11, the change unit 12, and the setting unit 13 may be included in another device such as the notification device 20. For example, in this case, the notification device 20 serves as the setting device 10 and performs the setting processes shown in FIGS.

[0061] In the initial setting mode, the number of maintenance boards 2 to be set may be set instead of the number of child devices of the maintenance boards 2 to be set.

[0062] Embodiment 2 12 is a functional block diagram of a maintenance system according to embodiment 2. Note that the same reference numerals are used to designate parts that are the same as or equivalent to parts in embodiment 1, and a description of these parts will be omitted.

[0063] In the second embodiment, the setting device 10 writes in advance into the parent unit 2a a program that realizes the functions of the detection unit 11, the change unit 12, and the setting unit 13. That is, the parent unit 2a has the functions of the detection unit 11, the change unit 12, and the setting unit 13.

[0064] In this case, when the maintenance system 1 is installed, the parent unit 2a executes the same processing as the setting device 10 of the first embodiment. That is, the parent unit 2a changes the IP address of the child unit 2b from the shipping address to a setting address. At this time, the parent unit 2a adds a setting number to the fourth octet of its own IP address to create the setting address. The setting number is the number of child units of the maintenance board 2 that are already connected to the internal network N1.

[0065] When installing the maintenance system 1, the worker performs the work using a setting method that is generally similar to that of the first embodiment. Note that the setting method of the second embodiment differs from that of the first embodiment in that the master unit 2a is regarded as the setting device 10.

[0066] According to the second embodiment described above, the parent unit 2a, rather than the setting device 10, has the functions of the detection unit 11 and the change unit 12. For example, the parent unit 2a changes the IP addresses of the first child unit 2b, the second child unit 2c, the third child unit 2d, the fourth child unit 2e, etc. of the maintenance board 2 in the same manner as in the first embodiment. This allows the installation work of multiple maintenance boards 2 to be carried out quickly.

[0067] The maintenance system 1 of the first and second embodiments can be applied not only to the escalator 50 but also to an elevator as an elevator. In this case, multiple maintenance boards 2 may be provided for each piece of equipment in the elevator. The setting device 10 and the setting method may also be applied to multiple maintenance boards with similar configurations provided in an elevator. Generally, the same configuration is often provided repeatedly in the vertical direction, and therefore multiple pieces of equipment with similar initial IP addresses may be set in an elevator. The setting device 10 and the setting method can be applied to a system in which such multiple pieces of equipment, that is, maintenance boards, are connected to a network and operated.

[0068] Each function of the setting device 10 can be realized by a processing circuit. For example, the processing circuit includes a processor and a memory. Furthermore, for example, the processing circuit may include dedicated hardware.

[0069] Each function of the setting device 10 is realized by software, firmware, or a combination of software and firmware. At least one of the software and firmware is written as a program. At least one of the software and firmware is stored in memory. A processor realizes each function of the setting device 10 by reading and executing the program stored in the memory.

[0070] When the processing circuitry includes dedicated hardware, the processing circuitry may be implemented, for example, as a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof. For example, each function of the setting device 10 may be implemented individually by a processing circuit, or may be implemented collectively by a processing circuit. Furthermore, some of the functions of the setting device 10 may be implemented by dedicated hardware, and other parts may be implemented by software or firmware.

[0071] At least one of the maintenance boards 2 may be configured with a processing circuit similar to that of the setting device 10.

[0072] At least some of the functions of the setting device 10 may be implemented on a cloud server. In this case, the processing circuit is composed of multiple partial circuits. The multiple partial processing circuits are provided in multiple devices that make up the cloud server, respectively. The multiple devices that make up the cloud server may each be provided in a different building. [Explanation of symbols]

[0073] 1 maintenance system, 2 maintenance board, 2a parent unit, 2b first child unit, 2c second child unit, 2d third child unit, 2e fourth child unit, 10 setting device, 11 detection unit, 12 change unit, 13 setting unit, 20 reporting device, 21 connection line, 30 information center device, 50 escalator, 51a entrance / exit, 51b entrance / exit, 52 upper machine room, 53 lower machine room, B building, N1 internal network, N2 external network

Claims

1. An apparatus for initializing an internal network using a plurality of maintenance boards provided in an elevator, a detection unit that detects that a first maintenance board among the plurality of maintenance boards has been newly connected to the internal network; a change unit that changes the IP address of the first maintenance board to a new setting address when the first maintenance board is detected by the detection unit; A setting device comprising:

2. The change unit When the IP address of the first maintenance board newly connected to the internal network is not a specific shipping address, the IP address of the first maintenance board is not changed; When the IP address of the first maintenance board newly connected to the internal network is the shipping address, changing the IP address of the first maintenance board to the setting address. The setting device according to claim 1 .

3. The change unit sets the setting address to a fourth octet of the IP address of a parent device of a maintenance board that is already connected to the internal network among the plurality of maintenance boards, the fourth octet being the IP address of the parent device plus a setting number.

3. The setting device according to claim 1.

4. the change unit sets the number of child devices of the maintenance boards that are already connected to the internal network among the plurality of maintenance boards as the set number. The setting device according to claim 3 .

5. A parent unit connected to an internal network among a plurality of maintenance boards provided in an elevator, a detection unit that detects that a first slave board among the plurality of maintenance boards has been newly connected to the internal network; a change unit that changes the IP address of the first child device to a new setting address when the first child device is detected by the detection unit; The parent unit of the maintenance board equipped with this.

6. The change unit If the IP address of the first child device newly connected to the internal network is not a specific shipping address, the IP address of the first child device is not changed, When the IP address of the first child device newly connected to the internal network is the shipping address, the IP address of the first child device is changed to the setting address. A parent unit of the maintenance board according to claim 5.

7. The change unit sets the address for setting to the fourth octet of its own IP address plus a setting number.

7. A master unit of the maintenance board according to claim 5 or 6.

8. the change unit sets the number of child devices of the maintenance boards that are already connected to the internal network among the plurality of maintenance boards as the set number. A parent unit of the maintenance board according to claim 7.

9. 1. A method for initializing a plurality of maintenance boards for performing elevator service, comprising: a first step of connecting a setting device to a parent device among the plurality of maintenance boards, the setting device changing the IP address of the first maintenance board to a new setting address when it is detected that a first maintenance board among the plurality of maintenance boards has been newly connected to an internal network, and writing setting information to the parent device by the setting device; a second step of placing a first child board among the plurality of maintenance boards at an installation location; a third step, which is carried out after the first step, of connecting the parent device and the first child device with a connection line to form the internal network including the parent device and the first child device; a fourth step, which is carried out after the third step, in which the setting device changes the IP address of the first child device; A setting method that includes:

10. a fifth step, which is carried out after the fourth step, in which the setting device changes the IP address of the first child device and then writes setting information corresponding to the number of child devices of the plurality of maintenance boards connected to the internal network into the first child device; Further equipped with The setting method according to claim 9.

Images