CN113542722A - Real-time data, three-dimensional model and video combined display system in electric power operation and maintenance - Google Patents
Real-time data, three-dimensional model and video combined display system in electric power operation and maintenance Download PDFInfo
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- CN113542722A CN113542722A CN202110731388.2A CN202110731388A CN113542722A CN 113542722 A CN113542722 A CN 113542722A CN 202110731388 A CN202110731388 A CN 202110731388A CN 113542722 A CN113542722 A CN 113542722A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04N13/20—Image signal generators
- H04N13/275—Image signal generators from 3D object models, e.g. computer-generated stereoscopic image signals
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- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/363—Image reproducers using image projection screens
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Abstract
A real-time data, three-dimensional model and video combine the display system in the electric power operation and maintenance, relate to the monitoring field, relate to the remote monitoring of the electrical equipment specifically, including field device, camera, processor and display device that the operation and maintenance center sets up, the field device is fitted with the sensor, the field video that the operation data and camera shoot is transmitted to the processor through the communication link; the processor synthesizes and converts the three-dimensional model and the field video into a holographic image source, and outputs the holographic image source to the display equipment for holographic projection display. By adopting the system provided by the invention, the real-time data, the three-dimensional model and the field equipment running video are synthesized and then are subjected to holographic projection display, the running state of the field equipment can be restored, the appearance of the equipment and the running parameters of all parts in the equipment can be visually displayed, and operation and maintenance personnel can see the real-time running condition of the field equipment without going to the field.
Description
Technical Field
The invention relates to the field of monitoring, in particular to remote monitoring of electrical equipment, and particularly relates to a system for combining and displaying holographic model data of the electrical equipment, which combines remote real-time operation data, a three-dimensional model and a field monitoring video.
Background
In the long-term operation process of high-voltage electrical equipment such as a high-voltage switch cabinet, a preassembled transformer substation, a ring main unit and the like, equipment faults can be caused by influences of system overvoltage, damp and hot salt fog, overload and the like of many equipment, regular operation maintenance and overhaul are needed, the operation maintenance and overhaul are carried out in two modes at present, one mode is that the external state of the equipment is monitored and observed through remote video and signals are intelligently acquired, and the other mode is that operation and maintenance personnel open the condition inside the equipment observation equipment on site. The first operation and maintenance means can only see the appearance of the equipment, judge external faults and cannot observe the internal state of the equipment, and the second condition needs a large amount of professional field operation and maintenance personnel.
At present, the running conditions of each device can be remotely obtained by installing a sensor on the device and sending the running parameters of the device to an operation and maintenance system, but the mode is not intuitive and needs operation and maintenance personnel with rich experience to judge.
Disclosure of Invention
In order to overcome the defects, the invention provides a real-time data, three-dimensional model and video combined display system in electric power operation and maintenance, which displays the appearance, the internal structure and the real-time operation parameters of each device by a 3D holographic image.
In order to realize the purpose of the invention, the following technical scheme is adopted: a real-time data, three-dimensional model and video combined display system in electric power operation and maintenance comprises a field device, a camera arranged on the field, a processor arranged in an operation and maintenance center and a display device,
a sensor is arranged on the field equipment to collect operation data, and the operation data and a field video shot by a camera are transmitted to a processor through a communication link;
the processor comprises a three-dimensional model processing module, a video synthesis module and an output module, wherein the three-dimensional model processing module generates a three-dimensional model corresponding to the field device and displays the operation data on the three-dimensional model; the video synthesis module synthesizes and converts the three-dimensional model and the field video into a holographic image source; the output module outputs the holographic image source to the display device for holographic projection display.
Furthermore, when the three-dimensional model processing module establishes the three-dimensional model, a model coordinate system is set, and the equipment on the operation site completes the three-dimensional modeling of the model equipment according to the actual size; setting a device coordinate system on the device site; the position of the model device in the model coordinate system coincides with the position of the field device in the device coordinate system.
Further, the three-dimensional model processing module adjusts the display mode of the three-dimensional model, so that the outline of the equipment in the running video of the equipment is overlapped with the external shape of the three-dimensional model.
The invention completes the synthesis of videos from different sources, and further performs 3D holographic display. In the displayed content, the appearance of the equipment in the live video and the 3D model is completely overlapped, otherwise, the double image exists in the displayed holographic image, and the effect is influenced.
Has the advantages that: by adopting the system provided by the invention, the real-time data, the three-dimensional model and the field equipment running video are synthesized and then are subjected to holographic projection display, the field video and the three-dimensional model are matched and displayed, the running state of the field equipment can be restored, the appearance of the equipment and the running parameters of each part in the equipment can be visually displayed, and operation and maintenance personnel can see the real-time running state of the field equipment without going to the field.
Drawings
FIG. 1 is a schematic field view of the present invention;
FIG. 2 is a schematic diagram of the components of the processor;
FIG. 3 is a schematic diagram of a holographic projection;
FIG. 4 is an embodiment of the present invention;
FIG. 5 is a three-dimensional model display corresponding to a field device.
Detailed Description
The present invention will be described in detail with reference to examples. The following specific examples are given by way of illustration only and are not intended to limit the invention.
A real-time data, three-dimensional model and video combined display system in electric power operation and maintenance comprises field equipment, a camera arranged on the field, a processor arranged in an operation and maintenance center and display equipment.
Sensors mounted on the field devices collect operational data, which is transmitted to the processor along with the field video captured by the cameras via a communication link, as shown in fig. 1.
Referring to fig. 2, the processor includes a three-dimensional model processing module, a video synthesis module, and an output module, the three-dimensional model processing module generates a three-dimensional model corresponding to the field device and displays the operation data on the three-dimensional model; the video synthesis module synthesizes and converts the three-dimensional model and the field video into a holographic image source; the output module outputs the holographic image source to the display device for holographic projection display.
The processor also comprises a distortion processing module which is used for carrying out distortion correction processing on the running video of the equipment and then transmitting the video to the video synthesis module.
The processor also comprises a video monitoring module which is used for monitoring the running video of the equipment, and when the video content is monitored to have obvious change, the changed position is informed to the three-dimensional model processing module, and the display of the three-dimensional model is changed synchronously.
In this embodiment, the processor is a computer with complete functions.
The invention realizes the combination of real-time data, three-dimensional models and videos in electric power operation and maintenance based on the system and displays the data in a holographic projection mode.
First, the preliminary preparation, including the building of the three-dimensional model and the installation of the field devices, is completed.
A. The three-dimensional model processing module generates a three-dimensional model corresponding to the field device: and setting a model coordinate system, and establishing a three-dimensional model according to the actual size of the operating field equipment to prevent the model from being mismatched when the images of the actual equipment are combined.
And setting a device coordinate system on the field, and installing the field device.
The position of the model device in the model coordinate system coincides with the position of the field device in the device coordinate system.
B. The sensors are installed on the field device and the sensor locations are located on the three-dimensional model.
Sensors are installed at important positions on the equipment to be monitored so as to acquire operating parameters such as voltage, current and temperature. To display the data acquired by each sensor, the sensor locations are located on the three-dimensional model.
C. The sensor collects the operation data of the field device and transmits the operation data to the processor of the operation and maintenance center through the communication link, and the three-dimensional model processing module displays the operation data on the position, corresponding to the sensor, of the three-dimensional model.
The operation data reflects the operation condition of a certain device, and the most intuitive is to display the operation data on the specific device in the three-dimensional model. Since the installation position of the sensor may be far from the device, in this embodiment, the location position of the sensor on the three-dimensional model, i.e., the position of the corresponding sensor on the three-dimensional model, is the device position as the data source.
The sensors are not displayed in the three-dimensional model.
D. And installing a camera on the operation site and acquiring the operation video of the equipment.
The camera is preferably not too close to the device to avoid severe wide angle distortion.
In the live video, since the appearance of the device is basically in a static state due to unattended operation, a video stream can be generated by using one frame of image within a certain time or a time period when the appearance of the device is not changed. In this case, the video stream can be reproduced after the distortion correction processing is performed on the image.
In the invention, the processor also comprises a distortion processing module which is used for carrying out distortion correction processing on the running video of the equipment and then transmitting the video to the video synthesis module.
E. And synthesizing and converting the three-dimensional models of the equipment operation video and the display operation data into a holographic image source.
Synthetically converting different video sources into holographic sources is a well established technique, such as superimposing real scene information and 3D spatial template data using a Vuforia module.
In the invention, two video sources are related, and the device shapes in the two videos need to be completely overlapped, which is one of the key points of the invention.
In the preliminary preparation, a model coordinate system and a device coordinate system are established, and the position of the model device in the model coordinate system coincides with the position of the field device in the device coordinate system, so that the field device and the three-dimensional model are seen to coincide as long as the position and the angle of view of the observer in the two coordinate systems are the same.
Once the position of the camera is fixed, the image output by the three-dimensional model needs to be adjusted.
And the three-dimensional model processing module adjusts the display mode of the three-dimensional model, so that the outline of the equipment in the running video of the equipment is coincided with the external shape of the three-dimensional model.
To achieve the above object, the present embodiment proposes two solutions.
1. And automatically selecting the size and the angle of the three-dimensional model image.
Acquiring the position of a camera in a field device coordinate system and the alignment direction of a lens;
and adjusting the display angle and distance of the three-dimensional model according to the acquired position to obtain a three-dimensional model image matched with the equipment running video.
In the three-dimensional modeling software, setting the position and the lens angle of view of the camera can realize the above functions.
An orthogonal camera and a perspective camera may be selected, but since the distortion effect of the perspective camera output in the software may be different from that of the live video camera output, in this embodiment, an orthogonal camera is used to match the corrected live image.
2. And manually selecting the size and the angle of the three-dimensional model image.
Acquiring a video shot by a camera, and intercepting a picture;
and manually adjusting the display angle and the proportion of the three-dimensional model to enable the outline of the three-dimensional model to coincide with the external shape of the equipment in the intercepted picture.
And acquiring a running video of the equipment, and taking one frame as a reference. Since the field is basically in a static state, only one frame is selected.
And putting the reference frame into a screen, and adjusting the display angle and the proportion of the three-dimensional model through rotation, scaling, movement and the like to ensure that the outline of the equipment in the running video reference of the equipment is superposed with the external shape of the three-dimensional model.
And outputting the image of the three-dimensional model in the display mode at the moment, and synthesizing the image with the running video of the equipment to convert the image into a holographic image source.
F. And (4) displaying the holographic projection.
After the above processing, the holographic projection is the equipment operated on site, the three-dimensional model coinciding with the appearance of the field equipment, the components inside the equipment and the operation parameters of the components, as shown in fig. 3.
In order to distinguish the components of the equipment obviously, different parts with connection relations are displayed in different colors in the three-dimensional model, so that a novice can know the components of the equipment conveniently.
In practical application, the operation and maintenance personnel can hold the equipment into the holographic projection, as shown in fig. 3.
The data transmission path of the present invention is shown in fig. 4.
Displaying the three-dimensional model by the handheld device; when the handheld device enters the holographic projection display area, the position of the handheld device is detected, and the details of the nearby device are displayed on the handheld device according to the position.
The position can be detected through indoor positioning systems such as laser, bluetooth, through personnel or handheld device's coordinate position, shows near equipment detail on handheld terminal, provides more accurate supplementary for fortune dimension personnel.
The operation data collected by the sensor comprises voltage, current and temperature; and setting a threshold value of the operation data, judging the real-time operation data to be a fault when the real-time operation data exceeds the threshold value, and displaying a fault part on the three-dimensional model in a flashing mode. And recovering normal display after the fault is relieved. As shown in fig. 5, it is judged that two positions are failed, and the two positions are blinked in yellow and red, respectively.
In some cases, operation and maintenance personnel can enter the equipment operation site to operate the equipment, such as opening an equipment case, and the like, at this time, the site video changes, and the change can be automatically monitored through video monitoring software.
In the processor, the video monitoring module monitors the running video of the equipment, and when the video content is monitored to be obviously changed, the changed position is informed to the three-dimensional model processing module, and the display of the three-dimensional model is synchronously changed.
Because only the change of the appearance of the equipment is monitored, the parts which can be changed in the three-dimensional model can be judged according to the changed plane coordinate position in the video, and then synchronization is carried out.
The changes inside the equipment caused by different operation states are synchronously changed in the three-dimensional model. Such as a trip of the switch caused by an open circuit. To synchronize live video, the display of the three-dimensional model changes synchronously when the changes are monitored. The switching action may be derived from other monitoring systems and will not be described in detail herein.
Claims (9)
1. A real-time data, three-dimensional model and video combined display system in electric power operation and maintenance comprises a field device, a camera arranged on the field, a processor arranged in an operation and maintenance center and a display device, and is characterized in that,
a sensor is arranged on the field equipment to collect operation data, and the operation data and a field video shot by a camera are transmitted to a processor through a communication link;
the processor comprises a three-dimensional model processing module, a video synthesis module and an output module, wherein the three-dimensional model processing module generates a three-dimensional model corresponding to the field device and displays the operation data on the three-dimensional model; the video synthesis module synthesizes and converts the three-dimensional model and the field video into a holographic image source; the output module outputs the holographic image source to the display device for holographic projection display.
2. The combined display system of claim 1,
when the three-dimensional model processing module establishes a three-dimensional model, a model coordinate system is set, and the equipment on the operation site completes three-dimensional modeling of model equipment according to the actual size;
setting a device coordinate system on the device site;
the position of the model device in the model coordinate system coincides with the position of the field device in the device coordinate system.
3. The combination display system of claim 2, wherein the three-dimensional model processing module adjusts a display mode of the three-dimensional model such that an outline of the device coincides with an external shape of the three-dimensional model in the running video of the device.
4. The combined display system of claim 2, wherein the three-dimensional model processing module adjusts the display mode of the three-dimensional model by:
acquiring the position of a camera in a field device coordinate system and the alignment direction of a lens;
and adjusting the display angle and distance of the three-dimensional model according to the acquired position to obtain a three-dimensional model image matched with the equipment running video.
5. The combined display system of claim 2, wherein the three-dimensional model processing module adjusts the display mode of the three-dimensional model by:
acquiring a video shot by a camera, and intercepting a picture;
and manually adjusting the display angle and the proportion of the three-dimensional model to enable the outline of the three-dimensional model to coincide with the external shape of the equipment in the intercepted picture.
6. The combined display system of claim 1,
the system further comprises a handheld device for displaying the three-dimensional model, when the handheld device enters the holographic projection display area, the position of the handheld device is detected, and the details of the nearby device are displayed on the handheld device according to the position.
7. The combined display system of claim 1,
the operating data comprises voltage, current and temperature; and setting a threshold value of the operation data, judging the real-time operation data to be a fault when the real-time operation data exceeds the threshold value, and displaying a fault part on the three-dimensional model in a flashing mode.
8. The combined display system of claim 1, wherein the processor further comprises a distortion processing module for performing distortion correction processing on the device running video and transmitting the device running video to the video compositing module.
9. The combined display system of claim 1, wherein the processor further comprises a video monitoring module for monitoring the running video of the device, and when it is monitored that the video content has changed significantly, the three-dimensional model processing module is notified of the changed position, and the display of the three-dimensional model changes synchronously.
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Application publication date: 20211022 |