Cubicle and cubicle monitoring system

Abstract

To improve security property and to prevent electrical shock.SOLUTION: A cubicle includes: an authentication device which performs digital authentication on a worker of the cubicle, and determines whether the cubicle is a prescribed work object and the worker is a prescribed work object person or not; and a panel opening / closing device which performs unlocking operation when the cubicle is the prescribed work object and the worker is the prescribed work object person in the authentication device.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] SUMMARY OF THE DISCLOSURE The present invention relates to a cubicle and a cubicle monitoring system. [Background technology]

[0002] 2. Description of the Related Art Conventionally, a cubicle-type substation equipment (cubicle) in which substation equipment is housed in a housing has been known. In such cubicle-type substation equipment, it was common for the doors to be locked. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 09-163518 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional technology, the door of the housing (board) was managed with a key, so that anyone who had the key could unlock it at any time, which could result in a decrease in security. Furthermore, in the case of cubicle-type substation equipment that was not the subject of the work, there was a risk of accidentally unlocking the equipment in an uninterrupted state, which could result in electric shock.

[0005] The present invention has been made in view of the above, and has an object to provide a cubicle and a cubicle monitoring system that can increase security and prevent electric shock. [Means for solving the problem]

[0006] The cubicle of the embodiment is equipped with an authentication device that performs digital authentication on a cubicle worker and determines whether the cubicle is a specified work target and the worker is a specified work recipient, and a panel opening and closing device that performs an unlocking operation when the authentication device determines that the cubicle is a specified work target and the worker is a specified work recipient. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a schematic configuration block diagram of a power receiving and transforming system according to an embodiment. [Diagram 2] FIG. 2 is an explanatory diagram of the data formats of the work management data, alarm management data, and authentication data that constitute the management database. [Diagram 3] FIG. 3 is a flowchart of an operation process according to the embodiment. [Figure 4] FIG. 4 is a flowchart of an operation process according to a modified example of the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] FIG. 1 is a schematic configuration block diagram of a power receiving and transforming system according to an embodiment. The power receiving and transforming system 10 includes a central monitoring device 11 that monitors the entire power receiving and transforming system 10, and n (n is a natural number) cubicle-type power receiving and transforming equipment 12-1 to 12-n that perform power receiving and transforming operations. The central monitoring device 11 includes a control device 21, a management database (DB) 22, a display operation panel 23, a communication device 24, and an alarm device 25. In the above configuration, the control device 21 controls the entire central monitoring device 11. The management database 22 includes work management data in which work management information for managing work on the cubicle-type substation equipment 12-1 to 12-n described below is registered, alarm management data in which the contents of alarms that have occurred in the cubicle-type substation equipment 12-1 to 12-n are registered, and authentication data for authenticating workers.

[0009] FIG. 2 is an explanatory diagram of the data formats of the work management data, alarm management data, authentication data, and panel unlocking processing data that constitute the management database. First, the work management data 22A will be described.

[0010] The work management data 22A is data that stores information about the cubicle-type substation equipment to be worked on. As shown in FIG. 2(A), the work management data 22A includes work ID data 41, work date data 42, work target board ID data 43, worker ID data 44, and password data 45.

[0011] The work ID data 41 is data for identifying work to be performed on a cubicle-type substation equipment. The work date data 42 is data that stores the dates, time periods, etc. of work performed on the cubicle-type substation equipment.

[0012] The work target panel ID data 43 is data that stores a panel ID for identifying the cubicle-type power receiving and transforming equipment to be worked on. In this case, a unique panel ID for identifying the cubicle-type power receiving and transforming equipment is assigned in advance to the cubicle-type power receiving and transforming equipment 12-1 to 12-n.

[0013] The worker ID data 44 is data that stores one or more worker IDs for identifying a worker who will work on the cubicle-type substation equipment that is the target of the work.

[0014] The password data 45 is data for storing a password to be used to unlock the panel instead of authentication when authentication cannot be performed at the cubicle-type substation equipment being worked on due to a sudden change in workers or other reasons. Under normal circumstances, no password is stored.

[0015] Next, the alarm management data 22B will be described. The alarm management data 22B includes alarm ID data 51, alarm date and time data 52, alarm content data 53, alarm target panel ID data 54, and operator ID data 55, as shown in FIG. 2(B).

[0016] The alarm ID data 51 stores ID data for individually identifying each issued alarm, and unique ID data is stored for each alarm. In other words, even if the same cubicle-type substation equipment issues multiple alarms, separate ID data is stored for each alarm.

[0017] The alarm date and time data 52 stores information on the date and time when an alarm was issued. The alarm content data 53 stores data (text, alarm code, etc.) that makes it possible to understand the content of the alarm, such as, for example, that an unlocking operation has been performed by someone other than the worker working on the cubicle-type substation equipment that is the target of the work.

[0018] The alarm target panel ID data 54 is data that stores a panel ID for identifying the cubicle-type substation equipment that issued the alarm. The worker ID data 55 is data that stores the corresponding worker ID when it is possible to identify the worker who caused the alarm to be issued.

[0019] Next, the authentication data 22C will be described. The authentication data 22C is data for authenticating whether or not the worker is a legitimate worker (verifying the authenticity of the worker). Here, a legitimate worker is a worker who has been designated in advance to perform a task. As shown in FIG. 2(C), the authentication data 22C includes worker ID data 61, and first to m-th (m is a natural number) authentication information data 62-1 to 62-m.

[0020] The worker ID data 61 is data that stores a worker ID for identifying a worker. The first authentication information data to the m-th (m is a natural number) authentication information data 62-1 to 62-m respectively store data used for biometric authentication of an operator, such as a data group of fingerprint feature points or a data group of facial feature points. Note that the data used for biometric authentication is merely an example and is not limited to these. For example, other data such as iris authentication may be used.

[0021] Next, the board unlocking process data 22D will be described. The board unlocking process data 22D is data that stores the history of the board unlocking process for management purposes. The board unlocking process data 22D includes unlocking operation date and time data 71, board ID data 72, operator ID data 73, and authentication feasibility data 74, as shown in FIG. 2(D).

[0022] The unlocking operation date and time data 71 is data that stores the date and time when the unlocking operation was performed. The panel ID data 72 is data that stores a panel ID for identifying the cubicle-type substation equipment for which an unlocking operation has been performed. The worker ID data 73 is data that stores a worker ID for identifying the worker who performed the unlocking operation. The authentication success / failure data 74 is data indicating whether or not authentication has been successful in the authentication process carried out during the unlocking operation.

[0023] Next, the configuration of the cubicle-type substation equipment will be described. There are various possible configurations for the cubicle-type power receiving and transforming equipment 12-1 to 12-n shown in FIG. 1, but in the following, the cubicle-type power receiving and transforming equipment 12-1 will be described as an example among the cubicle-type power receiving and transforming equipment 12-1 to 12-n.

[0024] The cubicle-type substation equipment 12-1 includes a control device 31, a communication device 32, a voltage detector 33, a memory device 34, a panel opening / closing device 35, an alarm device 36, an authentication device 37, and a display / operation device 38.

[0025] The control device 31 is configured as a so-called computer equipped with an MPU, ROM, RAM, etc., and cooperates with the central monitoring device 11 to control the entire cubicle-type substation equipment 12-1. The communication device 32 communicates with the central monitoring device 11 via a wireless or wired communication network.

[0026] The voltage detector 33 detects whether a predetermined portion of the cubicle-type substation equipment 12-1 is in a non-energized state (power outage state). More specifically, for example, it detects whether there is a device being charged in the cubicle-type substation equipment 12-1. The storage device 34 includes a volatile memory and a non-volatile memory, and stores obtained data such as various settings and operating conditions.

[0027] When a predetermined panel opening condition is satisfied, the panel opening / closing device 35 opens the door of the cubicle-type substation equipment 12-1, allowing workers to access the inside of the enclosure. When a predetermined panel closing condition is satisfied, the panel opening / closing device 35 keeps the door of the cubicle-type substation equipment 12-1 in a closed state, preventing workers from accessing the inside of the enclosure.

[0028] When the control device 31 of the cubicle-type substation equipment 12-1 detects an abnormality of any kind that is the target of the alarm, the alarm device 36 issues an alarm to workers near the cubicle-type substation equipment 12-1 by sound (audio) via a speaker, buzzer, etc., light from an indicator, display on the display operation device 38, etc. More specifically, when the cubicle-type substation equipment 12-1 is not the target of work or when a current-carrying state is detected such as the presence of a device being charged inside the cubicle-type substation equipment 12-1, an alarm is issued to notify the workers of this.

[0029] The authentication device 37 refers to the authentication information (fingerprint, face image, etc.) input via the display operation device 38 and the authentication data 22C constituting the management database 22 of the central monitoring device 11 to authenticate whether the worker is a genuine worker or not.

[0030] The display operation device 38 is used to display various information including alarm information, and to allow an operator to input information for authentication and to input setting data for the cubicle-type substation equipment 12-1.

[0031] More specifically, the display operation device 38 is equipped with, for example, a touch panel display, a fingerprint sensor, a camera, etc., and displays the operating status and alarm status of the cubicle-type substation equipment 12-1, as well as inputting data necessary for the authentication of an operator into the cubicle-type substation equipment 12-1, and allowing the operator to operate various controls to input setting data, etc.

[0032] Next, the operation of the embodiment will be described. FIG. 3 is a flowchart of an operation process according to the embodiment. In the following description, the operation will be described using the cubicle-type substation equipment 12-1 as an example.

[0033] First, when a work schedule arises for maintenance, repair, or the like for the cubicle-type substation equipment 12-1 to 12-n, the administrator of the central monitoring device 11 is to have the work planner identify the cubicle-type substation equipment to be worked on and the worker by the day of the work, and to register the panel to be worked on and the worker information as work management data 22A in the management database 22 of the central monitoring device 11 (step S11).

[0034] On the other hand, in normal operation, the cubicle-type power receiving and transforming equipment 12-1 displays device information and the like corresponding to its own operating state and the like on the display screen of the display operation device 38 (step S21). In addition, when there is a major or minor fault (signal) in the cubicle-type substation equipment 12-1, information on the faulty device is displayed on the display screen of the display operation device 38.

[0035] Thereafter, the control device 31 of the cubicle-type power receiving and transforming equipment 12-1 determines whether or not an unlocking operation has been performed on the display operation device 38 (step S22). Specifically, it is determined whether or not the operator has entered an unlocking instruction and authentication information (operator ID, fingerprint, face image, iris image, etc.) on the display operation device .

[0036] In the determination at step S22, if the unlocking operation has not been performed (step S22; No), the process returns to step S21 to continue displaying the device information. If it is determined in step S22 that an unlocking operation has been performed (step S22; Yes), the control device 31 performs an authentication process (step S23).

[0037] More specifically, as part of the authentication process, the control device 31 first communicates with the control device 21 of the central monitoring device via the communication device 32 and the communication device 24 of the central monitoring device 11, and if work management data 22A exists from the management database 22 that corresponds to the panel ID of the cubicle-type substation equipment 12-1 and is valid at the time of communication, it retrieves the work management data 22A, and further retrieves authentication data 22C corresponding to the worker ID included in the authentication information.

[0038] Next, when the control device 31 has acquired the work management data 22A, it performs authentication using the authentication device 37 based on the authentication data 22C corresponding to the acquired worker ID and its own panel ID, to authenticate whether the cubicle-type substation equipment 12-1 is the cubicle-type substation equipment to be worked on and whether the worker ID is equal to the true worker ID.

[0039] Furthermore, the control device 31 notifies the central monitoring device 11 of the time when the unlocking operation was performed, the panel ID of the cubicle-type substation equipment to be unlocked, and the operator ID as panel unlocking processing information (step S24).

[0040] In other words, if an attempt is made to unlock a panel by an operator not registered in the management database of the central monitoring device 11, or if an attempt is made to unlock a cubicle-type substation equipment panel that is not registered as a work target, the panel unlocking processing information makes it easy to know who attempted to unlock which panel, when, and in order to conduct a past review to determine the cause and improve the equipment in the unlikely event of an accident occurring.

[0041] As a result, the control device 21 of the central monitoring device 11 registers the notified board unlocking processing information and authentication propriety information in the management database 22 as board unlocking processing data 22D (step S12).

[0042] Next, the control device 31 of the cubicle-type power receiving and transforming equipment 12-1 determines whether or not authentication has been performed by the authentication device 37 in the process of step S23, resulting in an authenticated state (step S25).

[0043] If it is determined in step S25 that authentication has not been performed by the authentication device 37 and the device does not reach an authenticated state (step S25; No), the control device 31 of the cubicle-type substation equipment 12-1 will issue an alarm to that effect, determining that the panel unlocking process has not been performed by a genuine operator (step S26).

[0044] More specifically, the display operation device 38 displays the reason why authentication was not successful and the fact that the door was not unlocked, and issues an alarm such as a buzzer sound or a flashing indicator to alert the operator.

[0045] Next, the control device 31 of the cubicle-type substation equipment 12-1 notifies the control device 21 of the central monitoring device 11 of the alarm date and time, alarm content, its own panel ID, and the inputted operator ID as alarm information, and ends the process (step S27).

[0046] As a result, the control device 21 of the central monitoring device 11 generates alarm management data 22B based on the notified alarm information, and registers it in the management database 22 (step S13).

[0047] In the determination of step S25, if authentication has been performed by the authentication device 37 and the state becomes authenticated (step S25; Yes), the control device 31 of the cubicle-type substation equipment 12-1 controls the panel opening / closing device 35 to unlock the door of the cubicle-type substation equipment 12-1 (panel unlocking) (step S28).

[0048] This allows the worker to carry out work such as maintenance or repair of the cubicle-type substation equipment 12-1 (step S29). Then, the control device 31 of the cubicle-type power receiving and transforming equipment 12-1 judges whether or not the work such as maintenance or repair of the cubicle-type power receiving and transforming equipment 12-1 has been completed (step S30).

[0049] More specifically, it is determined whether or not the worker has performed an operation to end the work on the display operation device 38. In the determination at step S30, if the worker has not yet performed an operation to end the work on the display operation device 38 and the work has not been completed (step S30; No), the process again proceeds to step S29 and enters a standby state.

[0050] In the determination of step S30, if the worker operates the display operation device 38 to end the work (step S30; Yes), the control device 31 of the cubicle-type substation equipment 12-1 controls the panel opening and closing device 35 to lock the door of the cubicle-type substation equipment 12-1 (panel locking) (step S31).

[0051] Next, the control device 31 of the cubicle-type power receiving and transforming equipment 12-1 notifies the state information of the cubicle-type power receiving and transforming equipment 12-1.

[0052] Here, the status information is device information corresponding to the operating status of the device itself. This allows the control device 21 of the central monitoring device 11 to constantly grasp the state of the cubicle-type substation equipment under its control.

[0053] As described above, according to this embodiment, information from the worker's fingers or face is read and authentication is performed by an authentication device. If the worker is registered in the management database 22 of the central monitoring device 11 as a person to be worked on, the cubicle-type substation equipment (panel) to be worked on that is registered in the management database 22 is unlocked, but if the worker is not registered as a person to be worked on, the lock will not be opened, making it possible to ensure that only designated workers are allowed to perform work.

[0054] The above explanation has been about the case where a worker who has been registered in advance in the management database can perform work on the cubicle-type substation equipment that is the target of the work, but in actual operation, there may be cases where workers are replaced on the day of work.

[0055] However, in this embodiment, unless an authentic worker performs the unlocking operation, the lock will not be opened, which may result in delays in maintenance or repair work. Therefore, a modified embodiment that can deal with such a case will be described.

[0056] FIG. 4 is a flowchart of an operation process according to a modified example of the embodiment. In FIG. 4, the same parts as those in FIG. 3 are denoted by the same reference numerals, and the detailed description thereof will be referred to.

[0057] Even in this case, when a work schedule such as maintenance or repair for the cubicle-type substation equipment 12-1 to 12-n occurs, the manager of the central monitoring device 11 is to have a work planner specify the cubicle-type substation equipment to be worked on and the worker by the day of the work in the central monitoring device 11, and to register the work target panel and worker information as work management data 22A in the management database 22 of the central monitoring device 11. Also, it is assumed that the display operation device 38 displays information on the equipment.

[0058] When a worker is replaced on the day of work, the new worker requests the administrator of the central monitoring device 11 to issue a password in place of the worker ID by telephone, smartphone app, etc. (step S51). As a result, the administrator of the central monitoring device 11 registers the password in the password data 45 of the corresponding work management data 22A (step S41).

[0059] Thereafter, the control device 31 of the cubicle-type power receiving and transforming equipment 12-1 determines whether or not a password unlocking operation using a password has been performed on the display operation device 38 (step S52). Specifically, it is determined whether or not the operator has entered an unlock command and a password on the display / operation device 38.

[0060] In the determination at step S52, when the password unlocking operation has not been performed (step S52; No), the display operation device 38 continues to display the information about the device. In the determination at step S52, if a password unlocking operation has been performed (step S52; Yes), the control device 31 performs a password authentication process (step S53).

[0061] More specifically, as part of the authentication process, the control device 31 first communicates with the control device 21 of the central monitoring device via the communication device 32 and the communication device 24 of the central monitoring device 11, and if work management data 22A exists from the management database 22 that corresponds to the panel ID of the cubicle-type substation equipment 12-1 and is valid at the time of the communication, it obtains the work management data 22A.

[0062] Next, when the control device 31 has acquired the work management data 22A, it performs authentication using the authentication device 37 based on the corresponding password data 45 to authenticate whether the cubicle-type substation equipment 12-1 is the cubicle-type substation equipment to be worked on and whether the entered password is equal to the password stored in the password data 45.

[0063] Furthermore, similar to the embodiment, the control device 31 notifies the central monitoring device 11 of the time when the unlocking operation was performed, the panel ID of the cubicle-type substation equipment to be unlocked, and the operator ID as panel unlocking processing information (step S24). Thereafter, the processes of steps S12 to S14 and steps S25 to S32 are carried out in the same manner as in the embodiment.

[0064] As a result, even if a worker is suddenly replaced and digital authentication of the target worker cannot be performed, a replacement worker can easily take over the task, and as in the embodiment, the lock will not be opened unless the password entered by the replaced worker is registered, making it possible to ensure that only the designated worker can perform the work.

[0065] The above explanation was of the case where the cubicle-type substation equipment to be worked on has been specified in advance, but if there is an emergency need to unlock the cubicle-type substation equipment, such as when some abnormality is confirmed on-site for a panel that is not the subject of work and is not registered in the management database 22 of the central monitoring device 11, the local worker requests the work planner of the central monitoring device 11 to register the panel to be worked on, and the work planner can select, depending on the situation, whether to remotely unlock the target cubicle-type substation equipment + panel in the central monitoring device 11 or to register the panel to be worked on in the central monitoring device's database. If the panel to be worked on has been registered in the central monitoring device's database, the worker can unlock the panel as usual through digital authentication.

[0066] The central monitoring device and the control device of the cubicle-type substation equipment of this embodiment are equipped with an MPU, memory devices such as ROM (Read Only Memory) and RAM, external memory devices such as HDD and CD drive devices, display devices such as a display device, and input devices such as a keyboard and a mouse, and have a hardware configuration that utilizes a normal computer.

[0067] The programs executed by the central monitoring device and the control device of the cubicle-type substation equipment of this embodiment are provided in an installable or executable format file recorded on a computer-readable recording medium such as a USB memory, a semiconductor memory device such as an SSD, or a DVD (Digital Versatile Disk).

[0068] The programs executed by the central monitoring device and the control device of the cubicle-type substation equipment of this embodiment may be stored on a computer connected to a network such as the Internet and provided by being downloaded via the network. The programs executed by the central monitoring device and the control device of the cubicle-type substation equipment of this embodiment may be provided or distributed via a network such as the Internet.

[0069] Furthermore, the programs for the central monitoring device and the control device for the cubicle-type substation equipment of this embodiment may be provided by being pre-installed in a ROM or the like.

[0070] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims.

[0071] For example, in the above description, the authentication device acquires authentication information such as image information from the display operation unit, but it is also possible to configure the authentication device itself to have an authentication information acquisition device such as a camera. [Explanation of symbols]

[0072] 10. Power receiving and transforming system 11 Central monitoring device 12-1~12-n Cubicle-type substation equipment 21 Control device (reference unit, registration unit) 22 Management Database 22A Work Management Data 22B Alarm Management Data 22C Certification Data 22D Board unlocking processing data 23 Display operation panel 24 Communication device (first communication device) 25 Alarm device 31 Control device 32 Communication device (second communication device) 33 Voltage detection device 34 Storage device 35 Panel opening and closing device 36 Alarm device 37 Authentication Device 38 Display and operation device (display section, operation section) 41 Job ID data 42 Work Date Data 43 ID data of the target board 44 Worker ID data 45 Password Data 51 Alarm ID data 52 Warning date and time data 53 Alarm content data 54 Alarm target panel ID data 55 Worker ID data 61 Worker ID data 62 Credentials Data

Claims

1. an authentication device that performs digital authentication for a cubicle worker and determines whether the cubicle is a predetermined work target and the worker is a predetermined work target; a panel opening / closing device that performs an unlocking operation when the cubicle is a predetermined work target and the worker is a predetermined work target in the authentication device; A cubicle equipped with

2. A communication device capable of communicating with a central monitoring device having a database storing information indicating that the cubicle is a predetermined work target and information on the work target person in association with each other, The authentication device inquires of the central monitoring device via the communication device whether the cubicle is the work target and the worker is the work target person. The cubicle according to claim 1.

3. a voltage detector for detecting whether or not there is an energized device in the cubicle; A display unit that displays, based on the detection result of the voltage detector, that a current-carrying device is present in the cubicle; and an operation unit for allowing an operator to perform a confirmation operation for confirming that the display indicating that the energized device exists and an operation for issuing an unlock command, The panel opening and closing device performs the unlocking operation when the confirmation operation and the unlocking instruction operation are performed in the operation unit. The cubicle according to claim 1.

4. A fault detection unit is provided for detecting whether or not a fault has occurred in the cubicle, When an unlock instruction signal is input from the outside, the authentication device considers that the cubicle is a predetermined work target and that the worker is a predetermined work target person. The cubicle according to claim 1.

5. A communication device capable of communicating with a central monitoring device having a database storing information indicating that the cubicle is a predetermined work target and information on the work target person in association with each other, When the authentication device determines that the cubicle is not a predetermined work target or that the worker is not a predetermined work target, when an unlocking operation is performed, information on the cubicle and the worker is notified to the central monitoring device via the communication device. The cubicle according to claim 1.

6. a central monitoring device having a first communication device and monitoring a plurality of cubicles; a plurality of cubicles each having an authentication unit which performs digital authentication for a cubicle worker and judges whether the cubicle is a predetermined work target and the worker is a predetermined work target, a panel opening / closing device which performs an unlocking operation when the authentication unit judges that the cubicle is a predetermined work target and the worker is a predetermined work target, and a second communication device which is capable of communicating with a central monitoring device; When an unlocking operation is performed in the corresponding cubicle, the second communication device notifies the central monitoring device of information of the cubicle and the worker via the first communication device. Cubicle surveillance system.

7. The central monitoring device has a database that stores information indicating that the cubicle is a predetermined work target and information on a work target person in association with each other, a reference unit that, when an authentication unit of the cubicle inquires of the central monitoring device via the second communication device whether the cubicle is the work target and the worker is the work target person, refers to the database and notifies the cubicle of the result of the inquiry via the first communication device; 7. A cubicle monitoring system according to claim 6.

8. The central monitoring device includes a registration unit that, when the authentication unit of the cubicle notifies the central monitoring device via the second communication device that a failure has occurred in the cubicle and inquires whether the cubicle is the work target and whether the worker is the work target, registers the cubicle as the work target and a newly set work target in the database, 8. A cubicle monitoring system according to claim 7.

Images