Misconnection prevention system, misconnection prevention method, and program

Abstract

An erroneous connection prevention system according to one embodiment comprises: a first identification unit configured so as to, when a change in power of a power port is detected, reference physical configuration information indicating a physical connection relationship pertaining to a communication line and a power line, and thereby identify a first apparatus connected to the power port via the power line and identify a communication port connected to the first apparatus via the communication line; a setting instruction unit configured so as to instruct an apparatus connected to the communication port to set setting information corresponding to the first apparatus; a second identification unit configured so as to, if setting of the setting information has been successful, reference physical configuration information indicating a logical connection relationship between apparatuses, and thereby identify a first opposing apparatus present in a manner opposing the first apparatus; a mutual communication confirmation instruction unit configured so as to instruct the first opposing apparatus to confirm mutual communication with a second opposing apparatus present in a manner opposing the first opposing apparatus; and a notification unit configured so as to, if setting of the setting information has failed or if confirmation of the mutual communication has failed, issue notification that there is a connection error in the communication line and / or the power line.

Description

[Technical field]

[0001] The present invention relates to a misconnection prevention system, a misconnection prevention method, and a program. [Background technology]

[0002] In data centers of telecommunications carriers and the like, new installation and removal of communication devices are carried out for various purposes such as enhancing communication resources and upgrading equipment. When new installation and removal of communication equipment are carried out, it is necessary to correctly connect or remove communication lines and power lines according to the pre-design. For this reason, workers in charge of these tasks check whether or not the communication lines and power lines are correctly connected or removed while referring to design drawings. Also, when removing communication lines and power lines, a method called ring threading is sometimes used to prevent erroneous removal (for example, Non-Patent Documents 1 and 2). [Prior art documents] [Non-patent literature]

[0003] [Non-Patent Document 1] Removed cable identification "NK Ring", Internet<URL:https: / / www.exeonw.co.jp / products_list.html> [Non-Patent Document 2] "NK Ring" is created and used for safe and secure construction, internet<URL:https: / / anzeninfo.mhlw.go.jp / anzenproject / concour / 2015 / sakuhin7 / images / n159_1.pdf> Summary of the Invention [Problem to be solved by the invention]

[0004] However, it takes a lot of work to check whether communication and power lines are connected correctly as designed. This is because communication and power lines are generally wrapped and often run under false floors. This means that the check work may not be done properly within the limited work time, which may lead to incorrect connection of communication and power lines.

[0005] An embodiment of the present invention has been made in consideration of the above points, and has an object to prevent erroneous connection of communication lines and power lines. [Means for solving the problem]

[0006] In order to achieve the above object, an erroneous connection prevention system according to one embodiment includes a first identification unit configured to, when a power change at a power port is detected, identify a first device connected to the power port via the power line and a communication port connected to the first device via the communication line, by referring to physical configuration information representing a physical connection relationship between a communication line and a power line; a setting instruction unit configured to instruct a device connected to the communication port to set setting information corresponding to the first device; a second identification unit configured to, when the setting of the setting information is successful, identify a first opposing device located opposite the first device, by referring to logical configuration information representing a logical connection relationship between the devices; a communication confirmation instruction unit configured to instruct the first opposing device to check communication with a second opposing device located opposite the first opposing device; and a notification unit configured to notify that there is a connection error in at least one of the communication line and the power line, when the setting of the setting information fails or the communication confirmation fails. Effect of the Invention

[0007] It is possible to prevent incorrect connection of communication lines and power lines. [Brief description of the drawings]

[0008] [Figure 1]1 is a diagram showing an example of the overall configuration of a misconnection prevention system according to an embodiment of the present invention; [Diagram 2] 10 is a diagram for explaining an example of a flow of work and erroneous connection prevention processing when a communication device is newly installed; [Diagram 3] FIG. 2 is a diagram illustrating an example of a functional configuration of a detection device according to the present embodiment. [Figure 4] FIG. 2 is a diagram illustrating an example of a functional configuration of a monitoring device according to the present embodiment. [Diagram 5] 10 is a flowchart showing an example of a flow of processes executed by a detection device in the erroneous connection prevention process according to the embodiment. [Figure 6] 10 is a flowchart showing an example of a flow of processes executed by a monitoring device in the erroneous connection prevention process according to the embodiment. [Figure 7] FIG. 2 illustrates an example of a hardware configuration of a computer. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] An embodiment of the present invention will be described below. In this embodiment, a misconnection prevention system 1 that can prevent misconnection of a communication line and a power line when a communication device is newly installed (including replacement, renewal, etc.) at a base such as a data center of a telecommunications carrier or the like is described. According to the misconnection prevention system 1 of this embodiment, misconnection of a communication line and a power line is prevented when a communication device is newly installed, so that a failure caused by a misconnection of a communication line or a power line can be prevented. For example, although a system configuration is designed to ensure redundancy by being connected to multiple power supply devices, a communication device is connected to only one power source due to a misconnection of a power line, and as a result, it is possible to prevent a failure such as a service being affected due to a failure of the power supply device.

[0010] <Overall configuration example of incorrect connection prevention system 1> An example of the overall configuration of a misconnection prevention system 1 according to this embodiment is shown in Fig. 1. As shown in Fig. 1, the misconnection prevention system 1 according to this embodiment includes a detection device 10, a monitoring device 20, a configuration server 30, one or more communication devices 40, one or more power distribution devices 50, and one or more concentrators 60. These are installed in a base such as a data center, and the detection device 10, the monitoring device 20, the configuration server 30, the communication devices 40, and the concentrator 60 are connected to each other so as to be able to communicate with each other via, for example, a network within the base.

[0011] The detection device 10 is a computer or computer system that detects that a communication device 40 and a power port of a power distribution device 50 are connected via a power line, and identifies the communication device 40 or the like that should be connected to that power port.

[0012] The monitoring device 20 is a computer or computer system that, when there is a possibility of a misconnection regarding at least one of a communication line or a power line, issues a warning to a predetermined notification destination to the effect that there is a possibility of a misconnection.

[0013] The configuration server 30 is a computer or computer system that, in response to an instruction from the monitoring device 20, configures the communication device 40 in accordance with the instruction. Note that "config" is an abbreviation of "configuration" and refers to reflecting a setting file in the communication device 40.

[0014] The communication device 40 is, for example, a network device (such as a switch or a router). However, the communication device 40 is not limited to this, and may be, for example, a server (such as a rack-mounted server). The communication device 40 is generally installed in a facility called a rack.

[0015] The power distribution device 50 is a device called a PDU (Power Distribution Unit) or the like, and distributes and supplies power from a power supply device (for example, various power sources such as a system power source and a UPS (Uninterruptible Power Supply)). The power distribution device 50 has a plurality of power ports (in the example shown in FIG. 1, power ports P1 to P N ) is present. Note that only one communication device 40 is connected to one power port, and multiple communication devices 40 are not connected to one power port.

[0016] The concentrator 60 is a network device such as a hub, a switch, a router, etc. The concentrator 60 has a plurality of communication ports (communication ports Q1 to Q2 in the example shown in FIG. 1) connected to a communication line (LAN (Local Area Network) cable). M ) exists.

[0017] 1 is merely an example, and is not intended to be limiting. For example, the detection device 10, the monitoring device 20, and the configuration server 30 may all or partly be integrated into one device.

[0018] <Flow of work and erroneous connection prevention process when newly installing the communication device 40> The following describes the procedure for installing a new communication device 40 and the flow of the erroneous connection prevention process with reference to Fig. 2. In the following, the newly installed communication device 40 is referred to as a "new communication device 40-1." When installing a new communication device 40, the following procedures 1 and 2 are performed, and the following S1 to S13 are executed as the erroneous connection prevention process.

[0019] Task 1) The worker connects the new communication device 40-1 and the power ports of the power distribution device 50 with power lines. At this time, the worker, for example, refers to a design drawing and N The power line is connected to a predetermined power port of the power supply.

[0020] Task 2) The worker also connects the new communication device 40-1 to the communication port of the concentrator 60 with a communication line. At this time, the worker, for example, refers to a design drawing and checks the power ports Q1 to Q M The communication line is connected to a predetermined communication port among the above.

[0021] S1) When the new communication device 40-1 and the power port of the power distribution device 50 are connected by a power line, the detection device 10 receives current change information indicating that a current change has occurred in the power port. As a result, the detection device 10 detects that the new communication device 40-1 and the power port of the power distribution device 50 are connected by a power line.

[0022] S2) The detection device 10, from the physical configuration information and the current change information, identifies the identification information of the communication device 40 connected to the power port where the current change has occurred (hereinafter referred to as the communication device ID) and the identification information of the communication port to which the communication device 40 is connected (hereinafter referred to as the communication port ID). Here, the physical configuration information is information that represents the correct physical connection configuration between the communication device 40 and the power port of the power distribution device 50, and the correct physical connection configuration between the communication device 40 and the communication port of the concentrator 60 (i.e., information that represents the physical connection configuration designed in advance). Note that the communication port ID is identification information that identifies which communication port of which concentrator 60.

[0023] S3) The detection device 10 transmits to the monitoring device 20 the communication device ID and the communication port ID identified in S2 above.

[0024] S4) Upon receiving the communication device ID and the communication port ID, the monitoring device 20 transmits to the configuration server 30 a configuration instruction including the communication device ID and the communication port ID.

[0025] S5) When the configuration server 30 receives the configuration instruction, it configures the communication device 40 connected to the communication port of the communication port ID included in the configuration instruction with the setting file corresponding to the communication device ID included in the configuration instruction. Here, the configuration server 30 holds, for example, a setting file to be reflected in the communication device 40 of the communication device ID in a database or the like for each communication device ID. Note that the setting file is information related to settings required for the operation of the communication device 40, and includes routing information, etc., when the communication device 40 is a router, for example.

[0026] S6) The configuration server 30 receives the configuration result from the communication device 40 that was configured in S5 above. The configuration result includes at least information indicating whether the configuration was successful or unsuccessful.

[0027] S7) The configuration server 30 transmits the configuration results received in S6 above to the monitoring device 20.

[0028] S8) When the monitoring device 20 receives a configuration result indicating a configuration failure, it notifies a predetermined notification destination of a warning indicating that there is a misconnection in at least one of the communication line and the power line. This is because when the configuration fails, it means that an incorrect communication device 40 (that is, for example, a communication device 40 of a type in which the configuration file cannot be reflected) is connected to the communication port of the communication port ID identified in S2 above, and it is considered that the physical connection relationship of at least one of the communication line and the power line is incorrect.

[0029] S9) When the monitoring device 20 receives a configuration result indicating that the configuration was successful, the monitoring device 20 identifies the communication device 4-0 (hereinafter referred to as the opposing communication device 40) that is the opposing communication device 40 of this communication device ID from the logical configuration information and the communication device ID. Hereinafter, this opposing communication device 40 will be referred to as the "opposing communication device 40-2." Herein, the logical configuration information is information that represents the logical connection relationship between the communication devices 40 (i.e., information that represents the pre-designed logical connection relationship).

[0030] S10) The monitoring device 20 transmits an instruction to the opposite communication device 40-2 specified in the above S9 to check communication with the opposite communication device 40.

[0031] S11) The opposite communication device 40-2 checks communication with its opposite communication device 40.

[0032] S12) The monitoring device 20 receives a communication confirmation result from the opposite communication device 40-2. The communication confirmation result includes at least information indicating whether the communication confirmation with the opposite communication device 40 of the opposite communication device 40-2 was successful or unsuccessful.

[0033] S13) When the monitoring device 20 receives a communication check result indicating a failure of the communication check in S12 above, the monitoring device 20 notifies a predetermined notification destination of a warning indicating that there is a misconnection in at least one of the communication line and the power line. This is because when the communication check fails, it means that an incorrect communication device 40 (i.e., a communication device 40 not in a facing relationship with the facing communication device 40-2, etc.) is connected to the communication port of the communication port ID identified in S2 above, and it is considered that the physical connection relationship of at least one of the communication line and the power line is incorrect.

[0034] 2, for simplicity, only operations 1 and 2 are described, but it goes without saying that various other operations are performed when installing the new communication device 40. One example includes a setting operation for enabling remote monitoring of the new communication device 40 when it is confirmed that there are no incorrect connections of the communication lines and power lines.

[0035] <Example of Functional Configuration of Detection Device 10 and Monitoring Device 20> An example of the functional configuration of the detection device 10 and the monitoring device 20 according to this embodiment will be described below.

[0036] <Detection device 10> An example of the functional configuration of the detection device 10 according to this embodiment is shown in Fig. 3. As shown in Fig. 3, the detection device 10 according to this embodiment has a power port identification unit 101 and a connection relationship identification unit 102. These units are realized, for example, by a process in which one or more programs installed in the detection device 10 are executed by a processor such as a CPU (Central Processing Unit). The detection device 10 according to this embodiment also has a physical configuration information DB 103. The DB is realized, for example, by an auxiliary storage device such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive). Note that the physical configuration information DB 103 may be realized, for example, by a storage device (such as a database server) connected to the detection device 10 so as to be able to communicate with it.

[0037] When the power port identification unit 101 receives current change information indicating that a current change has occurred in the power port of the power distribution apparatus 50, the power port identification unit 101 identifies the power port from the current change information. The current change information includes at least identification information (hereinafter referred to as a power port ID) of the power port. Here, the current change information may be transmitted, for example, when an instrument (e.g., a clamp meter, etc.) that measures the current of each power port of the power distribution apparatus 50 detects a change in current, or the power distribution apparatus 50 itself may measure the current of each power port and transmit the information when it detects a change in current in a certain power port. In addition to this, for example, the detection apparatus 10 may receive a current measurement value from an instrument (e.g., a clamp meter, etc.) that measures the current of each power port of the power distribution apparatus 50, and the power port identification unit 101 may detect a change in current from the current measurement value and identify the power port. The power port ID is identification information that identifies which power port of which power distribution apparatus 50.

[0038] The connection relationship identifying unit 102 uses the physical configuration information stored in the physical configuration information DB 103 and the power port identified by the power port identifying unit 101 to identify the communication device ID of the communication device 40 connected to this power port and the communication port ID of the communication port to which the communication device 40 is connected. In addition, the connection relationship identifying unit 102 transmits the identified communication device ID and communication port ID to the monitoring device 20.

[0039] The physical configuration information DB 103 stores physical configuration information. As described above, the physical configuration information is information that represents a correct physical connection configuration between the communication device 40 and the power port of the power distribution device 50, and a correct physical connection configuration between the communication device 40 and the communication port of the concentrator 60. Specifically, the physical configuration information includes a correspondence between the communication device ID and the power port ID, and a correspondence between the communication device ID and the communication port ID.

[0040] ≪Monitoring device 20≫ An example of the functional configuration of the monitoring device 20 according to this embodiment is shown in Fig. 4. As shown in Fig. 4, the monitoring device 20 according to this embodiment has a configuration instruction unit 201, a facing device identification unit 202, a communication check instruction unit 203, and a notification unit 204. Each of these units is realized, for example, by a process in which one or more programs installed in the monitoring device 20 are executed by a processor such as a CPU. The monitoring device 20 according to this embodiment also has a logical configuration information DB 205. The DB is realized, for example, by an auxiliary storage device such as an HDD or SSD. Note that the logical configuration information DB 205 may be realized, for example, by a storage device (such as a database server) connected to the monitoring device 20 so as to be able to communicate with it.

[0041] When the configuration instruction unit 201 receives a communication device ID and a communication port ID from the detection device 10, it transmits a configuration instruction including the communication device ID and the communication port ID to the configuration server 30. In addition, the configuration instruction unit 201 receives a configuration result in response to the configuration instruction from the configuration server 30.

[0042] When the opposing device identification unit 202 receives a configuration result including information indicating successful configuration from the configuration server 30, it uses the logical configuration information stored in the logical configuration information DB 205 and the communication device ID received from the detection device 10 to identify the opposing communication device 40 that is the opposing communication device 40 of the communication device ID.

[0043] The communication check instruction unit 203 transmits, to the opposing communication device 40 identified by the opposing device identification unit 202, an instruction to check communication with the opposing communication device 40. The communication check instruction unit 203 also receives a communication check result in response to the communication check instruction.

[0044] When the notification unit 204 receives from the configuration server 30 a configuration result including information indicating a configuration failure or receives from the opposing communication device 40 a communication check result including information indicating a communication check failure, the notification unit 204 notifies a predetermined notification destination of a warning indicating that there is a misconnection in at least one of the communication line and the power line. On the other hand, when the notification unit 204 receives from the opposing communication device 40 a communication check result including information indicating a communication check success, the notification unit 204 notifies the predetermined notification destination of information indicating that the installation of the new communication device 40 has been successful. Note that the predetermined notification destination may be, for example, a display device such as a display provided in the monitoring device 20, or a terminal (smartphone, tablet terminal, PC, etc.) connected to the monitoring device 20 so as to be able to communicate with the monitoring device 20.

[0045] The logical configuration information DB 205 stores logical configuration information. As described above, the logical configuration information is information that represents a logical connection relationship between the communication devices 40. Specifically, the logical configuration information includes a correspondence between the communication device ID of the communication device 40 and the communication device ID of the opposing communication device 40 that is the opposing side of the communication device 40.

[0046] <Example of Processing Executed by the Detection Device 10 and the Monitoring Device 20 in Misconnection Prevention Processing> The following describes the flow of the process performed by the detection device 10 and the monitoring device 20 in the erroneous connection prevention process according to this embodiment. In the following, it is assumed that a new communication device 40 has been installed and the above-mentioned tasks 1 and 2 have been performed by an operator.

[0047] <<Flow of processing executed by the detection device 10>> An example of the flow of processing executed by the detection device 10 in the erroneous connection prevention processing according to this embodiment will be described with reference to FIG.

[0048] When receiving the current change information, the power port identifying unit 101 identifies a power port from the current change information (step S101). That is, the power port identifying unit 101 obtains the power port ID included in the current change information.

[0049] Next, the connection relationship identification unit 102 uses the physical configuration information stored in the physical configuration information DB 103 and the power port identified in step S101 above to identify the communication device ID of the communication device 40 connected to this power port and the communication port ID of the communication port to which the communication device 40 is connected (step S102).

[0050] Then, the connection relationship identifying unit 102 transmits the communication device ID and the communication port ID identified in the above step S102 to the monitoring device 20 (step S103).

[0051] <<Flow of processing executed by monitoring device 20>> An example of the flow of processing executed by the monitoring device 20 in the erroneous connection prevention processing according to this embodiment will be described with reference to FIG.

[0052] When the configuration instruction unit 201 receives a communication device ID and a communication port ID from the detection device 10, it transmits a configuration instruction including the communication device ID and the communication port ID to the configuration server 30 (step S201). As a result, the configuration server 30 that has received the configuration instruction configures the setting file corresponding to the communication device ID included in the configuration instruction for the communication device 40 connected to the communication port of the communication port ID included in the configuration instruction. Furthermore, when the configuration server 30 receives a configuration result including at least information indicating whether the configuration was successful or unsuccessful from the communication device 40, it transmits the configuration result to the monitoring device 20.

[0053] The configuration instruction unit 201 receives from the configuration server 30 a configuration result in response to the configuration instruction transmitted in the above step S201 (step S202).

[0054] If a configuration result including information indicating successful configuration is received in step S202 above (YES in step S203), the opposing device identification unit 202 uses the logical configuration information stored in the logical configuration information DB 205 and the communication device ID received from the detection device 10 to identify the opposing communication device 40 that is the opposing communication device 40 of this communication device ID (step S204).

[0055] Next, the communication check instruction unit 203 transmits a communication check instruction to the opposite communication device 40 identified in the above step S204, with the communication device 40 facing the opposite communication device 40 (i.e., the communication device 40 with the communication device ID received from the detection device 10) (step S205). As a result, the opposite communication device 40 that received the communication check instruction performs communication check with the communication device 40 facing the opposite communication device 40. Furthermore, the opposite communication device 40 transmits a communication check result that includes at least information indicating whether the communication check was successful or unsuccessful to the monitoring device 20. Note that the communication check may be performed by existing technology (for example, the presence or absence of a link-up for communication check at the L2 layer, and ping for communication check at the L3 layer).

[0056] The communication check instruction unit 203 receives a communication check result in response to the communication check instruction sent in the above step S205 (step S206).

[0057] If a communication confirmation result including information indicating that the communication confirmation was successful is received in step S206 above (YES in step S207), the notification unit 204 notifies a predetermined notification destination of information indicating that the installation of the new communication device 40 was successful (or information indicating that there are no connection errors in the communication line and the power line) (step S208).

[0058] On the other hand, if a configuration result including information indicating a configuration failure is received in step S202 above (NO in step S203) or if a communication check result including information indicating a communication check failure is received in step S206 above (NO in step S207), the notification unit 204 notifies a predetermined notification destination of a warning indicating that there is a connection error in at least one of the communication line and the power line of the new communication device 40 (step S209). This allows, for example, a worker or the like who installs the new communication device 40 to know that there is a connection error in at least one of the communication line and the power line.

[0059] <Hardware configuration example> The detection device 10 and the monitoring device 20 according to this embodiment are realized, for example, by the hardware configuration of a computer 500 shown in Fig. 7. Similarly, the configuration server 30 may be realized by the hardware configuration of the computer 500 shown in Fig. 7.

[0060] 7 includes an input device 501, a display device 502, an external I / F 503, a communication I / F 504, a processor 505, and a memory device 506. Each of these pieces of hardware is connected to each other via a bus 507 so as to be able to communicate with each other.

[0061] The input device 501 is, for example, a keyboard, a mouse, a touch panel, various physical buttons, etc. The display device 502 is, for example, a display, a display panel, etc. Note that the computer 500 does not necessarily have to have at least one of the input device 501 and the display device 502, for example.

[0062] The external I / F 503 is an interface with an external device such as a recording medium 503a. Examples of the recording medium 503a include a CD (Compact Disc), a DVD (Digital Versatile Disk), an SD memory card (Secure Digital memory card), and a USB (Universal Serial Bus) memory card.

[0063] The communication I / F 504 is an interface for connecting the computer 500 to a communication network such as a base network. The processor 505 is, for example, various types of arithmetic devices such as a CPU. The memory device 506 is, for example, various types of storage devices such as an HDD, an SSD, a RAM (Random Access Memory), a ROM (Read Only Memory), and a flash memory.

[0064] 7 is an example, and other hardware configurations may be used. For example, the computer 500 may have multiple processors 505 and multiple memory devices 506, or may have various hardware components other than the hardware illustrated.

[0065] <Summary> As described above, in the erroneous connection prevention system 1 according to this embodiment, when a communication device 40 is newly installed (including replacement, renewal, etc.), configuration and communication check are performed using physical configuration information that indicates the physical configuration of the communication lines and power lines for the communication device 40 and logical configuration information that indicates the logical connection relationship between the communication devices 40, and if this fails, a warning is issued that the connection of at least one of the communication lines and power lines is incorrect. This allows the worker who newly installs the communication device 40 to know that the connection relationship of at least one of the communication lines and power lines of the communication device 40 is incorrect. This allows the worker to check whether the communication lines and power lines are correct by referring to design drawings, etc., and prevents erroneous connection.

[0066] The present invention is not limited to the above-described embodiments specifically disclosed, and various modifications, changes, combinations with known technologies, etc. are possible without departing from the scope of the claims. [Explanation of symbols]

[0067] 1. Misconnection prevention system 10. Detection Device 20 Monitoring equipment 30 Config Server 40 Communication Equipment 50 Power distribution equipment 60 Concentrator 101 Power Port Specific Part 102 Connection relationship specification part 103 Physical configuration information DB 201 Config Instructions 202 Opposing device identification section 203 Communication confirmation instruction section 204 Notification Department 205 Logical Configuration Information DB 500 Computers 501 Input Device 502 Display device 503 External I / F 503a Recording media 504 Communication I / F 505 Processor 506 Memory Device 507 Bus

Claims

1. a first identification unit configured to, when a power change of a power port is detected, refer to physical configuration information that indicates a physical connection relationship between a communication line and a power line, and identify a first device connected to the power port via the power line and a communication port connected to the first device via the communication line; a setting instruction unit configured to instruct a device connected to the communication port to set setting information corresponding to the first device; a second identification unit configured to identify a first opposing device located opposite the first device by referring to logical configuration information that indicates a logical connection relationship between devices when the setting information is successfully set; a communication check instruction unit configured to instruct the first opposite device to check communication with a second opposite device located opposite the first opposite device; a notification unit configured to notify that there is a connection error in at least one of the communication line and the power line when the setting of the setting information fails or when the communication confirmation fails; An incorrect connection prevention system.

2. The first specifying unit is 2. The misconnection prevention system according to claim 1, configured to detect a power change in the power port when power change information indicating that a power change has occurred in the power port is received from a measuring device that measures the power of the power port or a power distribution device that is equipped with the power port.

3. The notification unit is 3. The erroneous connection prevention system according to claim 1, further comprising a notification that there is no erroneous connection between the communication line and the power line when the communication check is successful.

4. The misconnection prevention system according to any one of claims 1 to 3, wherein the physical configuration information is information representing a pre-designed physical connection relationship, and is information representing a physical connection relationship of a communication line connecting an equipment and a communication port, and a physical connection relationship of a power line connecting an equipment and a power port.

5. a first identification step of, when a power change of a power port is detected, referring to physical configuration information representing a physical connection relationship between a communication line and a power line, identifying a first device connected to the power port via the power line and a communication port connected to the first device via the communication line; a setting instruction step of instructing a device connected to the communication port to set setting information corresponding to the first device; a second identification unit that identifies a first opposing device that is located opposite the first device by referring to logical configuration information that indicates a logical connection relationship between devices when the setting information is successfully set; a communication check instruction procedure for instructing the first opposite device to check communication with a second opposite device located opposite the first opposite device; a notification procedure for notifying that there is a connection error in at least one of the communication line and the power line when the setting of the setting information fails or when the communication confirmation fails; The computer must perform an incorrect connection prevention method.

6. A program for causing a computer to function as the erroneous connection prevention system according to any one of claims 1 to 4.

Images