Equipment operation management system

Abstract

This system prevents mistakes when unlocking or locking mechanical locking mechanisms. It reduces the time spent on unlocking and locking operations. It provides a device operation management system that is resistant to deterioration over time and makes it easy to manage the operation of each device. [Solution] The device operation management system 1 comprises a locking mechanism 4, a drive motor 5, a portable information processing terminal 1C, an authentication terminal 3, a monitoring control unit 1A, and an unlocking / locking control box 6. The locking mechanism 4 disables each device by mechanically locking it. The portable information processing terminal 1C shares operation slip data with the monitoring control unit 1A. When the unlocking / locking control box 6 receives an unlocking / locking signal from the portable information processing terminal 1C, it controls the unlocking / locking operation by the drive motor 5. The portable information processing terminal 1C has an unlocking / locking operation selection unit 9 that, when the authentication terminal 3 determines that the device is the target device displayed in the operation slip data, allows the user to select whether or not to send a locking or unlocking signal.

Description

Technical Field

[0001] The present invention relates to an equipment operation management system for managing the operations of various equipment such as circuit breakers when performing power outage work in an electrical substation, for example.

Background Art

[0002] Conventionally, when performing power outage work in an electrical substation, the operation methods and procedures of each piece of equipment such as circuit breakers and grounding devices at the work site are described in operation ticket data in advance, and then the work is carried out on site based on the described content. At this time, in order to prevent danger to the workers working on site due to accidental operation of each piece of equipment by remote control, each piece of equipment is mechanically locked so that it cannot be accidentally operated, and then the power outage work is started on site.

[0003] For example, the locking mechanism disclosed in Patent Document 1 is arranged on the upper surface of the operation box of the circuit breaker, and includes a pair of support pieces protruding from the upper surface of the operation box at a predetermined interval, and a locking member whose proximal end side is located between the two support pieces. Both support pieces pivotally support the proximal end side of the locking member. Then, by fitting the distal end side of the locking member into the notch provided in the driving part for operating the circuit breaker by rotating the locking member in one direction, it is possible to mechanically prevent the circuit breaker from operating accidentally.

[0004] As described above, the support pieces of the locking mechanism each have a first pin insertion hole facing each other, while a second pin insertion hole corresponding to the two first pin insertion holes is formed in the middle of the locking member when the locking member is rotated to one side. By rotating the locking member to one side and inserting the lock pin into the two corresponding first and second pin insertion holes, and then attaching a padlock to the through hole at the tip of the lock pin, the mechanical locking state of the equipment by the locking member cannot be easily released. Furthermore, when the locking member is rotated to the other side and the lock pin is inserted into both first pin insertion holes and a padlock is attached to the through hole of the lock pin, the lock pin obstructs the rotation of the locking member to one side, thus preventing the locking member from accidentally mechanically locking the equipment during normal operation.

[0005] By the way, when using padlocks to secure the locking mechanisms of each of the devices mentioned above, it becomes necessary to manage the keys for each padlock, which is cumbersome. For example, if you accidentally take out a key that does not correspond to the device you are trying to lock, you may not only be unable to lock the target device, but you may also accidentally lock the device that the key is intended for.

[0006] To address this, for example, it is conceivable to introduce a device operation management system such as that described in Patent Document 2. This device operation management system comprises a portable information processing terminal capable of storing operation sheet data showing at least one target device to be worked on in an electrical station, an IC tag provided on each device in the electrical station and storing identification information that can identify each device, and a communication terminal that stores the operation sheet data in shared storage with the portable information processing terminal. When the portable information processing terminal determines that a device identified by the identification information obtained by communicating with the IC tag is the target device shown in the operation sheet data, it displays a message to that effect on the display unit of the portable information processing terminal, thereby preventing each worker from misidentifying the target device to be worked on in the electrical station. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Japanese Patent Publication No. 2021-89806 [Patent Document 2] Japanese Patent Publication No. 2005-251032 [Overview of the project] [Problems that the invention aims to solve]

[0008] By the way, when using padlocks to manage the locked state of a locking mechanism, there is a problem in electrical stations where there are many pieces of equipment, and a lot of time is spent on removing the padlock from the locking pin and attaching it to the locking pin when locking or unlocking equipment using the locking mechanism. Also, even if each worker does not mistake the equipment they are working on in the electrical station, if they bring a key that does not correspond to the equipment, the locking mechanism on that equipment cannot be locked, and the work will be delayed. Furthermore, since the padlocks on each piece of equipment are located on the top of the control box, if they are not locked or unlocked for a long time, they will rust, and in the worst case, they may become impossible to unlock, forcing the padlock to be cut.

[0009] The present invention has been made in view of the above, and its purpose is to provide an equipment operation management system that can prevent mistakes in locking and unlocking the mechanical locking mechanisms of each piece of equipment in an electric plant, shorten the time spent on locking and unlocking operations, and furthermore, is resistant to deterioration over time and facilitates the management of the operation of each piece of equipment. [Means for solving the problem]

[0010] To achieve the above objectives, the present invention is characterized by eliminating the need to manage locking mechanisms using padlocks in each piece of equipment at an electric power plant, and by enabling workers to activate the locking mechanism of the target equipment by operating a portable information processing terminal when the conditions are met.

[0011] Specifically, the equipment operation management system, which manages the operation of multiple pieces of equipment installed in the power plant, was targeted, and the following measures were taken.

[0012] In other words, the device operation management system according to the first invention includes: a mechanical locking mechanism attached to each of the devices and capable of disabling each of the devices by mechanical locking; a drive means for performing the unlocking and locking operation of the locking mechanism; a portable information processing terminal capable of storing operation slip data in which at least one of the devices among the devices that requires the unlocking and locking operation by the locking mechanism is displayed; an authentication means provided on each of the devices and configured to communicate with the portable information processing terminal when in proximity, and storing identification information that can identify each of the devices; and a device that is connected to the portable information processing terminal so as to be able to communicate with the operation The system comprises a first control unit capable of sharing and storing ticket data with the portable information processing terminal, and a second control unit that is communicatively connected to the drive means and the portable information processing terminal, and controls the unlocking and locking operation by the drive means when it receives an unlocking / locking signal from the portable information processing terminal, wherein the portable information processing terminal has a lock operation selection unit that, when it determines that the device identified by the identification information obtained by communicating with the authentication means is the target device displayed in the operation ticket data, allows it to select whether or not to send a lock start signal or an unlock start signal to the second control unit. In this device operation management system, a portable data processing terminal communicates with the authentication means of each device to obtain identification information, which allows it to determine whether or not a device is one that should be operated using a locking mechanism. Furthermore, the system allows the locking mechanism to be operated by the portable data processing terminal only when the target device is recognized. It also eliminates the need to carry multiple padlock keys for managing each device. Moreover, it eliminates the need for time-consuming tasks such as locking and unlocking padlocks. In addition, it eliminates the need to worry about problems caused by padlock rust.

[0013] In the equipment operation management system of the second invention, the first control unit includes a data creation and transmission unit that creates operation sheet data containing the details of the work performed at the electric station and transmits it to the portable information processing terminal, and the portable information processing terminal includes a data addition unit that can select and add at least one of the target equipment that needs to be unlocked or locked based on the details of the work described in the operation sheet data received from the data creation and transmission unit. In this type of equipment operation management system, workers performing tasks on-site can understand the details of the tasks planned by the manager via their portable information processing terminals. Furthermore, the system allows managers monitoring the workers to know in advance the specific details of the equipment locking procedures to be performed on-site based on the tasks to be carried out.

[0014] The device operation management system of the third invention is characterized in that, in the first or second invention, the locking mechanism is provided with a detection sensor capable of detecting the locking or unlocking state of the device, the second control unit transmits a lock confirmation signal or an unlock confirmation signal to the portable information processing terminal when the detection sensor detects a locked or unlocked state, and the portable information processing terminal is configured to display the locked or unlocked state of the device when it receives the lock confirmation signal or the unlock confirmation signal from the second control unit. In this type of equipment operation management system, workers on-site can visually determine whether the locking mechanism of the target equipment is functioning correctly.

[0015] In the device operation management system of the fourth invention, the portable information processing terminal is configured to transmit the lock confirmation signal or the unlock confirmation signal to the first control unit, as in the third invention. In this type of equipment operation management system, the supervisor who manages each worker on site will be able to see when the locking and unlocking operation of the target equipment has been completed at the site. [Effects of the Invention]

[0016] In the equipment operation management system of the first invention, the portable information processing terminal communicates with the authentication means of each device to obtain identification information, which allows it to determine whether or not a device is one that should be operated using a locking mechanism. Therefore, it is possible to prevent workers from mistakenly working on the wrong device in the field. Furthermore, since the locking mechanism can only be operated using the portable information processing terminal once the target device has been recognized, it is possible to reliably activate the locking mechanism on the target device. In addition, workers can perform work on all devices that require locking mechanisms by bringing only one portable information processing terminal to the field, eliminating the need to carry multiple keys for managing each device, thus making it easier to manage work on the locking mechanisms of each device. Moreover, since workers can operate the drive means of the locking mechanism to perform mechanical locking and unlocking operations on each device by operating the portable information processing terminal, time-consuming tasks such as locking and unlocking padlocks are eliminated, and the time spent on locking and unlocking operations is significantly reduced. In addition, since there is no need to use a padlock, you don't have to worry about problems caused by padlock rust, and you can efficiently lock and unlock the locking mechanism.

[0017] In the equipment operation management system of the second invention, workers performing tasks on-site can understand the actual work planned by the manager via a portable information processing terminal. Therefore, workers can efficiently understand the work planned by the manager. On the other hand, the manager who supervises the workers can know in advance the specific details of the work performed on-site using the locking mechanisms of each piece of equipment based on the work to be performed. In this way, the work performed by the workers on-site and the manager who supervises them can share the details of the work to be performed in advance.

[0018] In the equipment operation management system of the third invention, an operator working on-site can visually determine whether the locking mechanism of the target equipment is operating correctly. Therefore, the operator can determine the locked and unlocked state of the locking mechanism of the target equipment, and can determine whether the subsequent work is safe before performing the subsequent work.

[0019] In the equipment operation management system of the fourth invention, a manager who manages each on-site worker can know that the locking and unlocking operation by the locking mechanism of the target equipment has been completed on-site. Therefore, the manager can determine whether each locking and unlocking operation is being carried out as scheduled, and the work can be carried out under a safer system.

Brief Description of Drawings

[0020] [Figure 1] It is a block diagram of the equipment operation management system according to an embodiment of the present invention. [Figure 2] It is a perspective view of a circuit breaker with a locking mechanism attached, which forms part of the equipment operation management system according to an embodiment of the present invention, and shows the state where the locking mechanism is unlocked. [Figure 3] It is a perspective view of a circuit breaker with a locking mechanism attached, which forms part of the equipment operation management system according to an embodiment of the present invention, and shows the state where the locking mechanism is locked. [Figure 4] It is a front view of a portable information processing terminal that forms part of the equipment operation management system according to an embodiment of the present invention, and shows the state immediately before operating the locking mechanism of the circuit breaker to be locked. [Figure 5] It is a flowchart for performing a power outage operation at a predetermined site in the equipment operation management system according to an embodiment of the present invention.

Modes for Carrying Out the Invention

[0021] Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Note that the following description of the preferred embodiments is merely illustrative in nature.

[0022] Figure 1 shows a block diagram of an equipment operation management system 1 according to an embodiment of the present invention. This equipment operation management system 1 manages the operation of multiple pieces of equipment such as disconnectors D when performing power outage work at an electric station X, and consists of a monitoring and control unit 1A (first control unit) that remotely operates and monitors each disconnector D at the electric station X from a control station Z, a mechanical locking device 1B attached to each disconnector D, and a portable information processing terminal 1C carried by workers performing work at the site.

[0023] The monitoring and control unit 1A is connected to each piece of equipment in the power plant X via a control relay station (not shown), enabling remote control of each piece of equipment in the power plant X. For example, the monitoring and control unit 1A can remotely issue ON / OFF commands to circuit breakers located in a predetermined work area of ​​the power plant X, and can acquire and store the status of those circuit breakers.

[0024] Furthermore, the monitoring and control unit 1A is connected to a portable information processing terminal 1C for communication and includes a data creation and transmission unit 2 that creates and stores operation sheet data 11 (see Figure 4) containing the details of the work to be performed at the electric plant X. The data creation and transmission unit 2 then transmits the stored operation sheet data 11 to the portable information processing terminal 1C for sharing.

[0025] Furthermore, the monitoring control unit 1A is equipped with a monitoring monitor 20 capable of displaying the operation slip data 11 stored in the data creation and transmission unit 2.

[0026] Each disconnector D located in the power plant X is of the horizontal disconnection type and, as shown in Figures 2 and 3, comprises an operating box 12 having a roughly rectangular parallelepiped shape with an opening / closing door 12a on one of its sides, and an operating rod 13 that is roughly rod-shaped and extends vertically and is capable of rotating in both forward and reverse directions around its centerline.

[0027] The operating rod 13 extends vertically through the center of the top surface of the control box 12, and its upper part is connected to a rotating insulator that opens and closes a disconnecting section (not shown) by rotational movement. On the other hand, the lower part of the operating rod 13 is connected via a gear meshing mechanism to a motor (not shown) located inside the control box 12, and the operating rod 13 rotates when the motor is driven.

[0028] Furthermore, a rotating plate 14 extending in an annular shape around the operating rod 13 is provided at a position close to the upper surface of the operating box 12 on the operating rod 13, and a notch 14a opening outwards is formed at a predetermined position on the outer peripheral edge of the rotating plate 14.

[0029] As shown in Figures 2 and 3, the mechanical locking device 1B comprises an authentication terminal 3 (authentication means), a locking mechanism 4, a drive motor 5 (driving means), and an unlocking / locking control box 6 (second control unit).

[0030] The authentication terminal 3 is a rectangular plate with thickness and is attached to the opening / closing door 12a side of the upper surface of the control box 12 of the disconnector D. The authentication terminal 3 stores identification information that identifies the disconnector D to which the authentication terminal 3 is attached and is configured to communicate with a portable information processing terminal 1C when it is brought close by.

[0031] The locking mechanism 4 is mounted on the upper surface of the control box 12 of the disconnector D, to the side of the authentication terminal 3, and in a position corresponding to the notch 14a of the rotating plate 14.

[0032] The locking mechanism 4 includes a support block 4a with a substantially U-shaped cross-section, which is attached to the upper surface of the control box 12 and has a pair of support portions 4b that protrude upward at a predetermined distance apart, and a locking member 4c that is substantially triangular in shape.

[0033] The base end of the locking member 4c is provided with a pair of shaft portions 4d that protrude in opposite directions, and each of these shaft portions 4d is pivotally supported by each support portion 4b of the support block 4a.

[0034] When the locking member 4c is rotated to one side, as shown in Figure 3, the tip of the locking member 4c fits into the notch 14a of the rotating plate 14, mechanically stopping the rotation of the operating rod 13. In other words, the locking mechanism 4 can disable the disconnector D by mechanical locking.

[0035] On the other hand, when the locking member 4c is rotated to the other side, as shown in Figure 2, the tip of the locking member 4c disengages from the notch 14a of the rotating plate 14, allowing the operating rod 13 to be rotated. In other words, the locking mechanism 4 can be switched to operate the disconnector D by mechanical unlocking.

[0036] A proximity sensor 4e (detection sensor) capable of detecting the unlocked / locked state of the disconnector D is attached to the upper surface of one of the support portions 4b. As shown in Figure 3, when the locking member 4c rotates to one side, the proximity sensor 4e reacts to the tip of the locking member 4c that is approaching the proximity sensor 4e and detects that it is in a locked state. On the other hand, as shown in Figure 2, when the locking member 4c rotates to the other side, the proximity sensor 4e stops reacting to the tip of the locking member 4c that is moving away from the proximity sensor 4e and detects that it is in an unlocked state.

[0037] The drive motor 5 is mounted to the side of the locking mechanism 4 on the top surface of the control box 12, and its rotation axis is rotatably attached to one of the shaft portions 4d of the locking member 4c. That is, when the drive motor 5 rotates forward, the locking member 4c rotates to one side, and when it rotates in reverse, the locking member 4c rotates to the other side.

[0038] The unlocking / locking control box 6 has a control board 6a inside, which is communicatively connected to the proximity sensor 4e, the drive motor 5, and the portable information processing terminal 1C.

[0039] When the control board 6a receives an unlock / lock signal from the portable information processing terminal 1C, it outputs either a lock start signal or an unlock start signal to the drive motor 5 to control the unlock / lock operation performed by the drive motor 5.

[0040] Furthermore, the control board 6a transmits a lock confirmation signal or an unlock confirmation signal to the portable information processing terminal 1C when the proximity sensor 4e detects that the device is locked or unlocked.

[0041] The portable information processing terminal 1C includes a data storage unit 7, a data appending unit 8, an unlock / lock operation selection unit 9, and a portable display unit 10.

[0042] The data storage unit 7 stores the operation slip data 11 transmitted from the data creation and transmission unit 2 of the monitoring control unit 1A.

[0043] The data appending unit 8 can select and append at least one target device that requires unlocking or locking based on the work content described in the operation slip data 11 stored in the data storage unit 7. For example, as shown in Figure 4, if the work content described in the operation slip data 11 in the monitoring control unit 1A includes the task of remotely closing the disconnecting part of a predetermined disconnector D, then the operation slip data 11 can be appended with a statement that the mechanical locking of the disconnector D by the locking mechanism 4 will be performed on-site.

[0044] In other words, the operation sheet data 11 displays at least one of the disconnectors D in the power plant X that requires unlocking / locking operation by the locking mechanism 4.

[0045] The unlock / lock operation selection unit 9 communicates with the authentication terminal 3 when the portable information processing terminal 1C is brought close to the authentication terminal 3 to obtain identification information for the disconnector D. Furthermore, once the unlock / lock operation selection unit 9 obtains the identification information from the authentication terminal 3, it determines whether the disconnector D identified by that information is the target device displayed in the operation slip data 11. If the unlock / lock operation selection unit 9 determines that the disconnector D identified by the identification information is the target device displayed in the operation slip data 11, it can transmit either a lock start signal or an unlock start signal to the unlock / lock control box 6 attached to the disconnector D.

[0046] As shown in Figure 4, the portable display unit 10 displays a push button 10a when it determines that the disconnector D identified by the lock / unlock operation selection unit 9 is the target device displayed in the operation sheet data 11. When the operator taps the push button 10a, the portable information processing terminal 1C sends either a lock start signal or an unlock start signal to the lock / unlock control box 6.

[0047] The portable display unit 10 is configured to display whether the locking mechanism 4 attached to the disconnector D is locked or unlocked when the portable information processing terminal 1C receives a locking confirmation signal or an unlocking confirmation signal transmitted from the unlocking / unlocking control box 6 attached to the disconnector D. Specifically, when the locking mechanism 4 of the disconnector D is locked or unlocked, the time when that state was reached is displayed in the time column of the operation slip data 11.

[0048] Furthermore, the portable information processing terminal 1C is configured to transmit a lock confirmation signal or an unlock confirmation signal to the monitoring and control unit 1A of the control center Z when it receives a lock confirmation signal or an unlock confirmation signal from the unlock / unlock control box 6 attached to the disconnector D.

[0049] Furthermore, the monitoring monitor 20 is configured to display whether the locking mechanism 4 attached to the disconnector D is locked or unlocked when the monitoring control unit 1A receives a locking confirmation signal or an unlocking confirmation signal from the portable information processing terminal 1C. In other words, the monitoring monitor 20 displays the same information as that displayed on the portable display unit 10 of the portable information processing terminal 1C.

[0050] Next, we will describe in detail how the locking mechanism 4 of the n disconnectors D in the power station X is managed by the equipment operation management system 1 of the embodiment of the present invention during power outage work.

[0051] As shown in Figure 5, first, once a power outage operation is decided upon at the power plant X, the process proceeds to step S1, where the administrator at power plant X creates operation sheet data 11. For example, when a power outage operation is to be performed in work area A of power plant X, operation sheet data 11 describing the procedure for remotely operating multiple circuit breakers and disconnectors in work area A is created in the data creation and transmission unit 2 of the monitoring and control unit 1A, and then the process proceeds to step S2.

[0052] In step S2, the operation sheet data 11 created by the data creation and transmission unit 2 of the monitoring control unit 1A is transmitted to the portable information processing terminal 1C, the operation sheet data 11 is shared with the worker carrying the portable information processing terminal 1C, and the process proceeds to step S3.

[0053] In step S3, the worker confirms the contents of the operation sheet data 11 displayed on the portable display unit 10 and adds the tasks to be performed at each piece of equipment in work area A to the operation sheet data 11 based on the contents. For example, as a task after the disconnecting part of the disconnector D is remotely closed by the monitoring control unit 1A, the worker adds the task of locking the disconnector D using the locking mechanism 4 attached to the disconnector D. The added task contents are overwritten in the operation sheet data 11 by the data addition unit 8, then transmitted to the monitoring control unit 1A and shared with the control center Z, after which the power outage work in work area A begins.

[0054] Next, in step S4, the target number k of the disconnector D is reset to 1 and the process proceeds to step S5. In step S5, in work area A, the worker checks the operation sheet data 11 displayed on the portable display unit 10 of the portable information processing terminal 1C carried by the worker and proceeds to the first disconnector D that requires locking. The worker then holds the portable information processing terminal 1C over the authentication terminal 3 located on the top surface of the disconnector D. The authentication terminal 3 then transmits the identification information of the disconnector D, which it has stored in advance, to the portable information processing terminal 1C and the process proceeds to step S6.

[0055] In step S6, the unlock / lock operation selection unit 9 of the portable information processing terminal 1C determines whether the disconnector D of the identification information obtained from the authentication terminal 3 is the target device that needs to be operated on next, as indicated in the operation slip data 11. If the determination in step S6 is YES, that is, if it is determined that the disconnector D is the target device, the process proceeds to step S7, where, as shown in Figure 4, a push button 10a displaying the target device is displayed in the lower area of ​​the portable display unit 10, and the operator can choose whether or not to send a lock start signal to the unlock / lock control box 6.

[0056] On the other hand, if the determination in step S6 is NO, that is, if it is determined that the disconnector D is not the target device, the process returns to step S5, and the worker searches for the correct target device that requires locking using the locking mechanism 4.

[0057] In step S8, the operator taps the push button 10a displayed on the portable display unit 10 of the portable information processing terminal 1C, causing the unlock / lock operation selection unit 9 to transmit a lock start signal to the unlock / lock control box 6. Upon receiving the lock start signal, the control board 6a of the unlock / lock control box 6 transmits a lock start signal to the drive motor 5. As the drive motor 5 rotates forward, the lock member 4c rotates to one side, and its tip engages with the notch 14a of the rotating plate 14 in the disconnector D. When the lock member 4c rotates to one side, the proximity sensor 4e detects that it is in a locked state, and the process proceeds to step S9.

[0058] In step S9, the control board 6a determines whether the disconnector D is locked by the locking mechanism 4. If the determination in step S9 is YES, that is, if it is determined that the disconnector D is locked by the locking mechanism 4, the process proceeds to step S10, where the control board 6a sends a lock confirmation signal to the portable information processing terminal 1C and proceeds to step S11.

[0059] On the other hand, if the determination in step S9 is NO, that is, if it is determined that the disconnector D is not locked by the locking mechanism 4, the process returns to step S8.

[0060] In step S11, when the portable information processing terminal 1C receives a lock confirmation signal from the control board 6a, it recognizes that the locking operation by the locking mechanism 4 of the disconnector D has been completed, overwrites the operation slip data 11 with the time, and then transmits the operation slip data 11 to the monitoring control unit 1A to share it with the portable information processing terminal 1C. The portable information processing terminal 1C then transmits a lock confirmation signal to the monitoring control unit 1A and proceeds to step S12.

[0061] In step S12, the target number k of disconnector D increases by one, and the process proceeds to step S13. In step S13, it is determined whether or not the target number k of disconnector D has reached the nth position.

[0062] When the determination in step S13 is YES, that is, when it is determined that the target number k of disconnector D has reached the nth position, the locking operation of each disconnector D in the work area A by the locking mechanism 4 is terminated.

[0063] On the other hand, if the determination in step S13 is NO, that is, if it is determined that the target number k of disconnector D is not the nth one, the process returns to step S5 and the locking operation of the disconnector D that needs to be locked next, as indicated in the operation sheet data 11, is performed.

[0064] As described above, according to the embodiment of the present invention, the portable information processing terminal 1C communicates with the authentication terminal 3 of each disconnector D in the work area A and, based on the identification information obtained, can determine whether or not the disconnector D is the target disconnector D that should be operated on by the locking mechanism 4. Therefore, it is possible to prevent workers from mistakenly operating on the target disconnector D at the work site.

[0065] Furthermore, the lock mechanism 4 can only be operated by the portable information processing terminal 1C if it recognizes the target disconnector D. Therefore, the lock mechanism 4 can be reliably activated for the target disconnector D.

[0066] Furthermore, by bringing only one portable information processing terminal 1C to the work site, the worker can perform work on all disconnectors D that require work on the locking mechanism 4, eliminating the need to carry multiple keys for managing each disconnector D. Therefore, it becomes easier to manage the work on the locking mechanism 4 of each disconnector.

[0067] Furthermore, since the operator can drive the drive motor 5 of the locking mechanism 4 by operating the portable information processing terminal 1C to perform the mechanical unlocking and locking of each disconnector D, time-consuming tasks such as locking and unlocking padlocks are eliminated, and the time spent on unlocking and locking the locking mechanism 4 can be significantly reduced.

[0068] In addition, since there is no need to use a padlock, there is no need to worry about problems caused by padlock rust, and the locking and unlocking of the locking mechanism 4 can be performed efficiently.

[0069] Furthermore, since the operation sheet data 11 is shared between the monitoring and control unit 1A and the portable information processing terminal 1C, workers performing tasks on-site can understand the actual work planned by the manager via the portable information processing terminal 1C. Therefore, workers can efficiently understand the work planned by the manager. On the other hand, the manager who monitors the workers can know in advance the specific details of the work performed on-site using the locking mechanism 4 of each disconnector D based on the work to be performed. In this way, the work performed by the workers on-site and the manager who manages them can share the details of the work to be performed in advance.

[0070] Furthermore, the locking mechanism 4 is equipped with a proximity sensor 4e, which can determine whether the locking mechanism 4 is locked or unlocked, and the determination result can be visually displayed on the portable display unit 10 of the portable information processing terminal 1C. Therefore, the worker can determine the unlocked or unlocked state of the locking mechanism 4 of the disconnector D, and can decide whether the subsequent work is safe before performing it.

[0071] Furthermore, the portable information processing terminal 1C is configured to send a lock confirmation signal to the monitoring and control unit 1A when the target disconnector D is locked by the lock mechanism 4. This allows the manager overseeing each worker on site to know that the unlocking and locking operation of the target disconnector D using the lock mechanism 4 has been completed on site. Therefore, the manager can determine whether each unlocking and locking operation is being carried out as planned, enabling the work to be carried out in a safer manner.

[0072] In this embodiment of the present invention, the locking member 4c of the locking mechanism 4 is driven by the drive motor 5. However, the locking member 4c may be rotated by any other mechanism, such as a hydraulic cylinder or an electric slider.

[0073] Furthermore, while the embodiments of the present invention described the management of operations when the equipment operation management system 1 performs locking operations using the locking mechanisms 4 attached to each disconnector D in the power plant X, the equipment operation management system 1 can also manage operations when the locking mechanisms 4 perform unlocking operations. The management of operations when the locking mechanisms 4 perform unlocking operations in the equipment operation management system 1 is the same as the management of operations when performing locking operations, except that the types of signals transmitted and received between each device are different for the locking start signal and the unlocking start signal, so a detailed explanation is omitted.

[0074] Furthermore, although the equipment operation management system 1 of the embodiment of the present invention was applied to the locking mechanism 4 provided on each disconnector D of the power plant X, it can also be applied to equipment other than disconnectors D, for example, to the locking mechanism provided on the grounding device.

[0075] Furthermore, in the embodiments of the present invention, the locked or unlocked state of the locking mechanism 4 is detected by the proximity sensor 4e, but the unlocked / locked state may be detected using other types of sensors, such as a laser sensor.

[0076] The portable information processing terminal 1C used in the device operation management system 1 of the embodiment of the present invention is, for example, a smartphone or a tablet. [Industrial applicability]

[0077] The present invention is suitable, for example, for an equipment operation management system that manages the operation of various devices such as disconnectors when performing power outage work at an electric power plant. [Explanation of symbols]

[0078] 1…Equipment operation management system 1A…Monitoring control unit (first control unit) 1B…Mechanical locking device 1C…Portable information processing terminal 2…Data creation and transmission unit 3…Authentication terminal (authentication means) 4…Locking mechanism 4a…Support block 4b…Support part 4c…Locking member 4d…Shaft part 4e…Proximity sensor (detection sensor) 5…Drive motor (drive means) 6…Unlocking / locking control box (second control unit) 6a…Control board 7…Data storage unit 8…Data appending unit 9…Unlocking / locking operation selection unit 10…Portable display unit 10a…Push button 11…Operation slip data 12…Operation box 12a…Opening / closing door 13…Operation rod 14…Rotating plate 14a…Notch part 20…Monitoring monitor D…Disconnector (equipment) X…Electricity station Z…Control station

Claims

1. A device operation management system that manages the operation of multiple devices installed in an electric power plant, A mechanical locking mechanism attached to each of the aforementioned devices, which can be switched to disable each of the devices by mechanical locking, A drive means for performing the unlocking and locking operation of the locking mechanism, A portable information processing terminal capable of storing operation slip data in which at least one of the aforementioned devices is a target device that requires unlocking / locking operation by the locking mechanism, Each of the aforementioned devices is provided with an authentication means configured to communicate with the portable information processing terminal when in proximity, and which stores identification information that can identify each of the aforementioned devices. A first control unit is connected to the aforementioned mobile information processing terminal in a communicative manner and is capable of sharing and storing the operation sheet data with the aforementioned mobile information processing terminal. The system comprises the aforementioned drive means and a second control unit which is communicably connected to the aforementioned portable information processing terminal and controls the unlocking / locking operation by the drive means when it receives an unlocking / locking signal from the portable information processing terminal, A device operation management system characterized in that the portable information processing terminal has a lock / unlock operation selection unit that, when it determines that the device identified by the identification information obtained by communicating with the authentication means is the target device displayed in the operation slip data, allows it to select whether or not to transmit a lock start signal or an unlock start signal to the second control unit.

2. In the equipment operation management system according to claim 1, The first control unit includes a data creation and transmission unit that creates the operation sheet data containing the details of the work performed at the electric station and transmits it to the portable information processing terminal. The device operation management system is characterized in that the portable information processing terminal includes a data appending unit that can select and append at least one of the target devices that require unlocking or locking based on the work content described in the operation slip data received from the data creation and transmission unit.

3. In the equipment operation management system according to claim 1 or 2, The locking mechanism is provided with a detection sensor connected to the second control unit, which is capable of detecting the unlocked / locked state of the device. When the detection sensor detects a locked or unlocked state, the second control unit transmits a locked confirmation signal or an unlocked confirmation signal to the portable information processing terminal. The device operation management system is characterized in that the portable information processing terminal is configured to display the locked or unlocked status of the device when it receives the locked confirmation signal or the unlock confirmation signal from the second control unit.

4. In the equipment operation management system according to claim 3, The device operation management system is characterized in that the portable information processing terminal is configured to transmit the lock confirmation signal or the unlock confirmation signal to the first control unit.

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