Electric facility information display system

Abstract

To make information on an inspection object following an actual facility available without comparison with a drawing and smoothly perform inspection work, when an electric facility is inspected.SOLUTION: An electric facility information display system includes a management server 3 for accumulating state information, a cubicle monitoring device 2 for acquiring the state information on an electric facility, an AR terminal 5 having a camera 51 and a transmission type screen 52, and a plurality of markers 4 for identifying the electric device, wherein the management server 3 has a state information storage part 31 for storing the individual state information associated with the markers 4, and a server CPU35 for discriminating the markers 4 from a video image of the camera 51, and notifying the AR terminal 5 of the state information associated with the markers 4, and the state information notified from the management server 3 is displayed as a virtual object according to an actual object seen through the screen 52 of the AR terminal 5.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an electrical equipment information display system that supports work when inspecting electrical equipment. [Background technology]

[0002] 2. Description of the Related Art Conventionally, there is a technology disclosed in Patent Document 1 as a system for supporting the work of inspecting electrical equipment and improving the work efficiency. Patent Document 1 is a system that supports the inspection work of distribution boards, in which a measurement work management device obtains branch breaker arrangement information, circuit number image data, load name image data, etc. from a board diagram and creates a measurement work sheet, and a measurement work terminal device receives measurement values ​​taken by a distribution board measuring instrument and creates measurement result information. As a result, the connection information and load image data for each branch breaker was displayed on the measurement terminal device, and the inspector could perform the measurement while looking at this display, so that the actual breaker status could be understood while the measurement was performed, and the measured values ​​were automatically recorded. As a result, the measurement work was made more efficient and work errors were reduced. On the other hand, there are systems that detect and notify when an abnormality occurs in a cubicle. For example, in Patent Document 2, physical information such as the voltage and current of a specific electric circuit in the cubicle is acquired, and a management server on the cloud judges whether the measurement data shows an abnormal value, and if an abnormal value is shown, a notification is sent to the management terminal to make the manager aware of the abnormality. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2022-166383 A [Patent Document 2] JP 2023-2439 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the technology of the above-mentioned Patent Document 1, the information displayed on the measurement work terminal is diagram information, which may not match the actual layout of the equipment to be measured, making it troublesome to compare it with the displayed diagram. Also, when an abnormality occurs, the response is the same as in the past, and there is no choice but to carefully measure the voltage / current. In addition, in the above-mentioned Patent Document 2, if an abnormality occurred in the cubicle, the management terminal was notified of the abnormality, but the confirmation work in the cubicle was the same as before and was performed by comparing it with drawing information, etc., which was cumbersome and improvement was desired.

[0005] In view of the above problems, the present invention aims to provide an electrical equipment information display system that enables inspection work to be carried out smoothly by enabling access to information on the inspection target that corresponds to the actual equipment without having to compare it with a drawing when inspecting electrical equipment. [Means for solving the problem]

[0006] In order to solve the above problem, a first configuration of the present invention is an electrical equipment information display system having a management server that accumulates multiple status information for recognizing the status of multiple electrical devices that constitute the electrical equipment, an electrical equipment monitoring device that is installed in the electrical equipment and acquires the status information and transmits it to the management server, and a display device that acquires the status information from the management server and displays it, wherein the system has a camera that captures images of electrical devices in the electrical equipment and multiple markers attached to predetermined positions of the electrical equipment to identify the electrical devices, while the management server has a status information storage unit that links the markers to individual status information and stores them, a marker discrimination unit that discriminates the markers from the image captured by the camera, and a notification control unit that reads the status information linked to the discriminated marker from the status information storage unit and notifies the display device, while the display device is a glasses-type AR terminal that has a display device communication unit that wirelessly communicates with the management server, a camera, and a transparent screen, and is characterized in that the status information notified from the management server is displayed on the transparent screen as a virtual object and is displayed together with a real object that is visible through the transparent screen. According to this configuration, status information associated with an electrical device is displayed as a virtual object in accordance with the electrical device as a real object viewed through the AR terminal, so that the status of the electrical device can be grasped without measuring the current value of the electrical device, etc., and maintenance and inspection work can be simplified. In addition, since the AR terminal is worn on the body, both hands can be freely operated, and maintenance and other work can be performed smoothly. In addition, since the status information is displayed in front of the user in accordance with the visible electrical device, there is no risk of mismatching the status information with the electrical device. In addition, the status information is, in the case of a transformer, temperature information in addition to voltage / current information on the primary and secondary sides, and in the case of a circuit breaker, interruption information in addition to voltage / current information.

[0007] Another aspect of the present invention is characterized in that, in the above configuration, a management terminal is provided with a display for displaying images, a call unit, and a communication unit for communicating with a management server, while the AR terminal has a call unit, and the management server, in addition to transmitting camera-captured images obtained from the AR terminal to the management terminal, also transmits status information to be transmitted to the AR terminal to the management terminal, and further forms a call path between the AR terminal and the management terminal to enable communication. With this configuration, an inspector who performs maintenance and inspection of electrical equipment can talk to the manager who is watching the management terminal while working and ask for instructions, so the work can be done smoothly.Meanwhile, the manager can give instructions while watching the image captured by the AR terminal, so he can give accurate instructions.

[0008] A second configuration of the present invention is an electrical equipment information display system having a management server that accumulates multiple status information for recognizing the status of multiple electrical devices that constitute the electrical equipment, an electrical equipment monitoring device that is installed in the electrical equipment and obtains status information and transmits it to the management server, and a display device that obtains and displays the status information from the management server, wherein the system has a camera that images electrical equipment in the electrical equipment and multiple markers attached to predetermined positions on the electrical equipment to identify the electrical equipment, while the management server has a status information memory unit that links the markers to individual status information and stores them, a marker discrimination unit that discriminates the markers from the image captured by the camera, and a notification control unit that reads the status information linked to the discriminated marker from the status information storage unit and notifies the display device, while the display device displays the image of the electrical equipment captured by the camera and displays the status information associated with the electrical equipment transmitted from the management server superimposed on the image of the electrical equipment. According to this configuration, status information of the displayed electrical equipment is displayed on the screen of the electrical equipment imaged by the camera and displayed on the display device, eliminating the need to measure current values, etc. for each electrical equipment, simplifying maintenance and inspection work. In addition, since the status information is displayed in front of the user in accordance with the visible electrical device, there is no risk of mismatching the status information with the electrical device.

[0009] Another aspect of the present invention is characterized in that, in the above configuration, when the display device displays status information that the electrical equipment monitoring device has determined to be an abnormal value, it also displays a message to the effect that the value is abnormal. According to this configuration, if an abnormal value is detected, it is displayed on the display device, so that the inspector can easily grasp the location of the abnormality. Effect of the Invention

[0010] According to the present invention, in a configuration in which the display device uses an AR terminal, status information associated with an electrical device is displayed as a virtual object in accordance with the electrical device as a real object viewed through the AR terminal, so that the status of the electrical device can be grasped without measuring the current value of the electrical device, etc., and maintenance and inspection work can be simplified. In addition, since the AR terminal is worn on the body, both hands can be freely operated, and maintenance and other work can be performed smoothly. On the other hand, in a configuration in which the display device displays status information superimposed on a screen showing the image captured by the camera, the status of the electrical equipment can be understood without measuring the current value, etc. of the electrical equipment, simplifying maintenance and inspection work. Furthermore, regardless of the type of display device, the status information is displayed in front of the user in accordance with the electrical device that is being viewed, so there is no risk of mistaking the combination of the status information with the electrical device. [Brief description of the drawings]

[0011] [Figure 1] 1 is a configuration diagram showing an example of an electrical equipment information display system according to the present invention. [Diagram 2] FIG. 2 is a functional block diagram of the cubicle monitoring device. [Diagram 3] FIG. 2 is a functional block diagram of a management server. [Figure 4] FIG. 2 is a functional block diagram of the AR terminal. [Diagram 5] FIG. 13 is a table showing markers and status information associated with the markers. [Figure 6] FIG. 2 is a functional block diagram of a management terminal. [Figure 7] FIG. 11 is an explanatory diagram of state information displayed on the AR terminal. [Figure 8] 13 is a flowchart showing a flow of display control. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, a detailed description will be given of an embodiment of the present invention with reference to the drawings. Fig. 1 shows an example of an electrical equipment information display system according to the present invention, in which the electrical equipment is a cubicle housing a high-voltage power receiving equipment. The electrical equipment information display system 1 is composed of a cubicle monitoring device (electrical equipment monitoring device) 2 installed in a cubicle 10 and obtaining various status information within the cubicle, a management server 3 placed on a cloud (general-purpose communication network) N and storing status information of the electrical equipment, markers 4 attached to appropriate locations on the cubicle 10 to identify each piece of electrical equipment, an AR (Augmented Reality) terminal 5 as a display device worn by an inspector, and a management terminal 6 that communicates with the AR terminal 5 so that the manager and inspector can communicate with each other.

[0013] The status information is, for a transformer, temperature information in addition to voltage / current information on the primary and secondary sides, for a circuit breaker, interruption information in addition to voltage / current information, and for a fuse, current / melting information. It may also include leakage current information and device life information. The marker 4 is, for example, formed in the shape of a sticker that can be attached by using the back side as the attachment surface.

[0014] The cubicle monitoring device 2 and the management server 3, and the AR terminal 5 and the management server 3 communicate with each other via a general-purpose network N such as the Internet. The cubicle monitoring device 2 and the management server 3 communicate with each other via wired or wireless communication, and the AR terminal 5 and the management server 3 communicate with each other via wireless communication.

[0015] The cubicle 10 houses high-voltage power receiving equipment and is equipped with a three-phase transformer that converts three-phase high-voltage power such as 6600V into three-phase / single-phase low-voltage power such as 200V, a high-voltage load switch (LBS), a power capacitor, a single-phase transformer, a power circuit breaker, etc., and generates and outputs low-voltage power to be supplied to the load.

[0016] 2 shows a functional block diagram of the cubicle monitoring device 2. The cubicle monitoring device 2 has a measurement unit 21 that obtains physical information such as the voltage, current, and temperature of a specific location as well as operational information of electrical equipment such as a circuit breaker, and a monitoring device communication unit 22 that transmits the measured information to the management server 3. Specifically, the measurement unit 21 has a voltmeter, an ammeter, and a thermometer installed at each specified location, and obtains status information such as voltage information D1 and current information D2 of main electrical circuits such as high-voltage circuits and low-voltage circuits, leakage current information D3, and transformer oil temperature information D4. Also, the controller 101 monitors the energization / cutoff of various circuit breakers and fuse blowout to obtain status information such as cutoff information D5 and fuse blowout information D6.

[0017] Furthermore, normal ranges are set for each of the physical information such as voltage, current, and temperature among the status information, and are registered in the storage unit 21a. If the registered normal range is exceeded, the measurement unit 21 judges this and notifies the management server 3 of the occurrence of an abnormality. In addition, if a circuit breaker performs a cutoff operation, or if an abnormality such as a fuse melts, the management server 3 is also notified of the occurrence of an abnormality.

[0018] 3 shows a functional block diagram of the management server 3. The management server 3 includes a status information storage unit 31 that stores various status information transmitted from the cubicle monitoring device 2, a marker information storage unit 32 that stores the association between the marker 4 and the electric device, a terminal information storage unit 34 that stores information on the AR terminal 5, a server CPU 35 that controls the management server 3, and a communication unit 36 ​​that communicates with the AR terminal 5 and the management terminal 6. The server CPU 35 has the function of a marker discrimination unit that discriminates the marker 4 from the image captured by the camera 51, and the function of a notification control unit that reads linked status information from the information of the discriminated marker 4 and notifies the AR terminal 5.

[0019] 4 shows a functional block diagram of the AR terminal 5. The AR terminal 5 is a pair of glasses-type, binocular, transparent AR glasses that an inspector wears like glasses. It includes a camera 51, a screen 52, a call unit 53, an AR terminal CPU 54 that controls the AR terminal 5, a communication unit (display device communication unit) 55 that wirelessly communicates with the management server 3, and the like. Camera 51 is installed at the center of AR terminal 5 so as to capture an image of a target that an inspector wearing AR terminal 5 is looking at, and captures an image in front of AR terminal 5. In addition, the angle of view is set so that there is no large difference between the field of view of the inspector and the angle of view captured by camera 51.

[0020] The screen 52 is a transparent screen that is placed in front of the eyes by wearing the AR terminal 5, and is placed at the lens position of glasses. The management server 3 determines the inspection target from the marker 4 of the real object seen by the inspector, that is, the real object captured by the camera 51, and transmits status information of the inspection target to be displayed on the screen as a virtual object. The communication unit 53 includes a microphone and a speaker (not shown), and performs voice communication with the management terminal 6 via the management server 3 under the control of the AR terminal CPU 54. The communication path is formed using, for example, VoIP.

[0021] Figure 5 specifically shows an example of marker 4 and the status information linked to marker 4. (a) shows the status information linked to an LBS (high voltage load break switch), (b) shows the oil temperature of a three-phase transformer, (c) shows the status information linked to a power circuit breaker, and (d) shows a fuse. The LBS markers are linked to status information of the LBSs installed in the single-phase and three-phase circuits, and one of them is identified from the marker 4 and displayed on the screen 52. The power circuit breaker marker 4 is linked to status information of the three circuit breakers that make up the three phases. The fuse marker 4 displays information on whether it is energized or blown. Here, it is shown that one of the three power circuit breakers (MCCB3) is in a circuit breaker operation state and is outputting an alarm signal.

[0022] The marker 4 is formed as an attachable sticker with the illustration shown in Fig. 5 drawn on it, and is attached near the corresponding device. Each device associated with the marker 4 is equipped with sensors that detect the status and sensors that measure current, voltage, and even temperature, and the obtained information is sent to the cubicle monitoring device 2. The information is then sent from the cubicle monitoring device 2 to the management server 3, and is stored in the management server 3 as status information. Note that the marker 4 is not limited to an illustration. For example, it may be text information, as long as it can be identified by the server CPU.

[0023] Markers 4 are also attached to the doors of boxes that house electrical equipment, and without opening the box, information about the box, for example, in the case of a cubicle, the presence or absence of anomalies and the status of the incoming power, are displayed on screen 52 as status information, making it possible to know this information from the markers 4. The information displayed at this time may also include information about the date of the previous inspection. Information about the date of inspection can be registered by inputting it from the management terminal 6, etc.

[0024] Fig. 6 shows a functional block diagram of the management terminal 6. As shown in Fig. 6, the management terminal 6 includes a display 61 that displays the captured image of the camera 51, an operation unit 62 for performing various operations, a call unit 63 for communicating with an inspector via the AR terminal 5, a communication unit 64 for communicating with the management server 3, a management terminal CPU 65 for controlling the management terminal 6, and the like, and communicates with the management server 3 via the general-purpose network N by a predetermined operation. Also, a call path is formed between the management terminal 5 and the AR terminal 5 via the management server 3. For example, a personal computer is used as the management terminal 6.

[0025] 7 is an explanatory diagram of the status information displayed on the AR terminal 5, showing the position of the marker 4 and the position of the displayed status information. It shows how the status information transmitted from the management server 3 is displayed as a virtual object superimposed on the field of view (real object) that the inspector actually sees via the AR terminal 5. The management server 3 reads the marker 4 included in the image captured by the camera 51, and the status information associated with this marker 4 is notified to the AR terminal 5, which displays it as a virtual object. The display position on the screen of the notified status information is set in the AR terminal for each marker 4, and the marker is displayed at a position designated by the control of the AR terminal CPU 54.

[0026] In Figure 7, one marker 4 is attached to each of three power circuit breakers 7 (first circuit breaker 7a, second circuit breaker 7b, and third circuit breaker 7c) in an adjacent position, and the status information of the three power circuit breakers 7 is displayed according to the position of each individual power circuit breaker 7. From this display, it can be seen that the first and second circuit breakers 7a and 7b on the left are energized and are showing voltage and current values ​​within the normal range, while the third circuit breaker 7c on the right is in an interrupted state and in an abnormal state.

[0027] In addition, normal values ​​or status information in a normal state is displayed in, for example, white, and abnormal values ​​or status information in an abnormal state is displayed in, for example, red, so that the display colors can be easily distinguished.

[0028] 8 is a flowchart showing the flow of display control by the management server 3 that displays status information on the screen 52 of the AR terminal 5. When an image captured by the camera 51 is transmitted from the AR terminal 5 (S1), the management server 3 determines whether the AR terminal 5 that transmitted the image data is registered in the terminal information storage unit 34 (S2), and if registered, determines whether or not the marker 4 is present in the image. If it is not registered (NO in S2), the control ends. If the presence of the marker 4 in the video is recognized (YES in S3), the status information linked to the marker 4 is extracted from the status information storage unit 31 (S4), and is notified to the AR terminal 5 (S5) to be displayed. If the marker 4 cannot be recognized, reception of the video captured by the camera 51 continues (S1).

[0029] In this way, by using the AR terminal 5, status information associated with an electrical device is displayed as a virtual object on the transparent screen of the AR terminal 5 in accordance with the electrical device as a real object viewed through the AR terminal 5, so that the status of the electrical device can be grasped without measuring the current value of the electrical device, etc., and maintenance and inspection work can be simplified. In addition, since the AR terminal 5 is worn by the inspector, both hands can be left free to operate it, and maintenance and other work can be performed smoothly. In addition, since the status information is displayed in front of the user in accordance with the visible electrical device, there is no risk of mismatching the status information with the electrical device. In addition, if the status information indicates an abnormal value, the abnormal value is displayed on the AR terminal 5, making it easy for the inspector to grasp the location of the abnormality.

[0030] Next, a case where the calling function is used will be described. A call path is established between the AR terminal 5 and the management terminal 6 by a specific operation of the two. The call path is established via the management server 3. The management server 3 is equipped with an application that establishes a call path using, for example, VoIP, enabling calls between the two. Meanwhile, the management terminal 6 communicates with the management server 3, and receives the captured image from the camera 51 transmitted from the AR terminal 5 to the management server 3, and the status information transmitted from the management server 3 to the AR terminal 5, and displays them on the display 61. That is, the real objects and virtual objects that the inspector is looking at on the AR terminal 5 are also displayed on the management terminal 6. As a result, the manager operating the management terminal 6 can share the video with the inspector inspecting the cubicle, and can use the formed communication path to give precise instructions to the inspector.

[0031] In this way, an inspector who performs maintenance and inspection of electrical equipment can work smoothly because he or she can talk to the manager who is watching the management terminal 6 and ask for instructions while working. On the other hand, the manager can give instructions while watching the image captured by the AR terminal 5, so that he or she can give accurate instructions.

[0032] Furthermore, by configuring the display device as AR terminal 5 with a camera 51 and a transparent screen 52 that displays virtual objects superimposed on real objects, a sense of unity can be created between the area viewed by the inspector and the information displayed on AR terminal 5. However, it is also possible to use a non-transparent screen (display unit) for screen 52 of AR terminal 5, replace the real objects with images captured by a camera, and display the virtual objects on this image. The display device may be a portable terminal such as a tablet terminal equipped with a camera 51 and a display unit for displaying images. Even with this configuration, the status information of the displayed electrical device is displayed on the screen of the electrical device captured by the camera 51 and displayed on the terminal, eliminating the need to measure the current value, etc., for each electrical device, simplifying maintenance and inspection work. In addition, since the status information is displayed in front of you in accordance with the electrical device you can see, there is no chance of mismatching the status information with the electrical device.

[0033] Furthermore, although the cubicle 10 has been described as an example of electrical equipment, it may also be a high-voltage power receiving facility installed in an apartment building, or a distribution board, and inspection work can be carried out smoothly in the same way as in the case of a cubicle. Also, the marker 4 is a sticker-like member that is attached by sticking, but it may be a plate-like member that is equipped with a hook so that it can be attached to a predetermined position so that it hangs down, or it may be a plate-like member that is attached by screws. Furthermore, the marker may be formed by directly printing or drawing on a predetermined portion. [Explanation of symbols]

[0034] 1··Electrical equipment information display system, 2··Cubicle monitoring device (electrical equipment monitoring device), 3··Management server, 4··Marker, 5··AR terminal (display device), 6··Management terminal, 10··Cubicle, 31··Status information storage unit, 32··Marker information storage unit, 34··Terminal information storage unit, 35··Server CPU (marker discrimination unit, notification control unit), 36··Communication unit, 51··Camera, 52··Screen, 53··Interaction unit, 54··AR terminal CPU, 55··Communication unit (display device communication unit), 61··Display, 63··Interaction unit, 64··Communication unit, 65··Management terminal CPU, N··General-purpose network.

Claims

1. An electrical equipment information display system comprising: a management server that accumulates a plurality of pieces of status information for recognizing the statuses of a plurality of electrical devices that constitute an electrical equipment; an electrical equipment monitoring device that is installed in the electrical equipment and acquires the status information and transmits it to the management server; and a display device that acquires the status information from the management server and displays it, a camera for capturing an image of an electrical device in the electrical facility; a plurality of markers attached to predetermined positions of the electrical equipment for identifying the electrical equipment; the management server includes a state information storage unit that associates the marker with each piece of state information and stores the information; a marker discrimination unit that discriminates the marker from the image captured by the camera; a notification control unit that reads the state information associated with the determined marker from the state information storage unit and notifies the display device; The display device is a glasses-type AR terminal including a display device communication unit that wirelessly communicates with the management server, the camera, and a transmissive screen, An electrical equipment information display system characterized in that the status information notified from the management server is displayed on the screen as a virtual object, together with a real object that is visible through the screen.

2. A management terminal is provided with a display for displaying images, a call unit, and a communication unit for communicating with the management server, while the AR terminal has a call unit, the management server transmits to the management terminal the captured image of the camera acquired from the AR terminal, and also transmits to the management terminal status information to be transmitted to the AR terminal; 2. The electrical equipment information display system according to claim 1, further comprising a communication path formed between said AR terminal and said management terminal to enable communication therebetween.

3. An electrical equipment information display system comprising: a management server that accumulates a plurality of pieces of status information for recognizing the statuses of a plurality of electrical devices that constitute an electrical equipment; an electrical equipment monitoring device that is installed in the electrical equipment and acquires the status information and transmits it to the management server; and a display device that acquires the status information from the management server and displays it, a camera for capturing an image of an electrical device in the electrical facility; a plurality of markers attached to predetermined positions of the electrical equipment for identifying the electrical equipment; the management server includes a state information storage unit that associates the marker with each piece of state information and stores the information; a marker discrimination unit that discriminates the marker from the image captured by the camera; a notification control unit that reads the state information associated with the determined marker from the state information storage unit and notifies the display device; The display device has a display unit that displays the image of the electrical equipment captured by the camera, and displays status information associated with the electrical equipment transmitted from the management server on the display unit superimposed on the image of the electrical equipment.

4. An electrical equipment information display system as described in any one of claims 1 to 3, characterized in that when the display device displays status information that the electrical equipment monitoring device has determined to be an abnormal value, it also displays a notice to that effect that the value is abnormal.

Images