KR20100079625A - An web-based integrated management system for power generation equipments using a 3d laser scan device - Google Patents

Abstract

PURPOSE: An integrated power plant management system based on a web by applying a 3D laser scan technology is provided to manage a power plant with a structure of a current state. CONSTITUTION: An element separating unit(35) extracts a facility element in a restored 3D shape. The element separating unit separates the 3D shape by a facility element. A drawing organization unit(36) writes drawings by a facility element. The drawing organization unit writes a power plant drawing by integrating the facility element drawings. An element information input unit(37) receives management information by the facility element. A web processing unit(38) processes a request of a web server about the structure of the power plant and management information.

Description

Web-based integrated management system for power generation equipments using a 3D laser scan device}

The present invention restores the three-dimensional shape of the power plant from the points of clouds scanned with a three-dimensional laser and extracts the plant elements, manages the power plant in an as-built structure and installs the plant. A system for providing information to a web server.

The present invention also relates to a system that separates power generation facilities by facility elements, creates a drawing, receives management information, and manages and provides detailed and detailed drawing information or management information for each facility element.

Generally, P & ID (Piping And Instrumentation Diagram) drawings are mainly used to manage plants such as power generation facilities. P & ID drawings are simplified drawings that lay out the layout of the plant's piping and instrumentation. In other words, the layout of the plant at the time of design is complicated as in the conventional mechanical drawings, so it is difficult to understand at a glance. Therefore, P & ID drawings, which are easy to see and understand easily, are made essential for managing power generation facilities by simplifying each pipe, valve, and parts of the plant to create a title column in the drawing.

The maintenance process of power generation facilities is as follows. First, find a drawing of equipment elements such as piping or equipment to be repaired, and obtain information for maintenance from past maintenance history such as manufacturer's manual and maintenance report for the equipment. In particular, plants, such as power generation facilities, should grasp the flow of plant processes, analyze the effects on other systems, and start maintenance. When maintenance of the equipment elements is completed, the maintenance process is terminated by preparing and storing the maintenance report.

Therefore, when maintaining the power generation facilities, it is important to effectively and efficiently manage the drawings and maintenance-related information about the power generation facilities such as P & ID drawings.

To this end, an example of a technology related to a system for comprehensively managing power generation facilities centering on P & ID drawings, which are essential for the maintenance of power plants and the like, is described in [Korea Patent Publication No. 10-2007-0079456 (August 7, 2007), "Power Generation". Comprehensive management system for equipment "] (hereinafter referred to as Document 1). The following Document 1 relates to a comprehensive management system for power generation equipment that can be freely searched and utilized through a personal computer connected to a network by electronic database.

That is, the following Document 1 is an in-house server for authenticating a user; A management server connected to the in-house server to authenticate the client to search for an electronic drawing, and manage information of the device by using an image of the corresponding device displayed on the electronic drawing; The management server includes a payment server for the payment processing (Trouble Memo) and Tag (Tag) request processing based on the information of the device, and the server is connected to the network to disclose a technology that interoperates . The electronic drawing displayed on the screen is as shown in FIG.

However, Document 1 manages the structure information of the power plant in a P & ID drawing, which is a two-dimensional drawing, so it is difficult to grasp the structure of the power plant unless it is an experienced mechanic. To this end, recently, a method of shaping a design drawing of a plant in three dimensions by using a professional CAD software has been attempted.

In addition, techniques related to facility management systems or laser scans as described above are described in Documents 2 to 5 below.

However, since the structure of the power generation facilities is very complicated, it is impossible to express the shape of the power generation facilities as a whole according to the conventional art as described above.

[Document 1] Republic of Korea Patent Publication No. 10-2007-0079456 (published Aug. 7, 2007)

[Patent 2] Japanese Patent Laid-Open No. 2002-269184 (published on February 20, 200)

[Patent 3] Republic of Korea Patent Publication No. 10-2006-0010284 (2006.2.2. Disclosure)

[Patent 4] Republic of Korea Patent Publication No. 10-2008-0091912 (published October 15, 2008)

[Patent 5] Republic of Korea Patent Publication No. 10-2008-0078167 (2008.8.27.)

An object of the present invention is to solve the problems described above, to restore the three-dimensional shape of the power plant from the points of clouds of the power plant scanned with a three-dimensional laser and to extract the plant elements, It is to provide a system for managing the system in an as-built structure.

It is also an object of the present invention to provide a system that separates power generation facilities by facility elements, creates a drawing, receives management information, and manages and provides detailed and detailed drawing information or management information for each facility element.

It is also an object of the present invention to provide a system for providing a web of the as-built three-dimensional shape of the power plant and management information for each element.

In order to achieve the above object, the present invention restores the three-dimensional shape of the power generation equipment from the points of clouds of the power generation equipment scanned with a three-dimensional laser and extracts the equipment elements to automatically manage the power generation equipment and equipment information. An integrated web-based power plant integrated management system using a three-dimensional laser scan technology for providing a web server, comprising: a scanning data input unit for receiving points of clouds from the three-dimensional laser scan equipment; An image matching unit configured to correct an input point set scanned at a plurality of viewpoints into a point set for one viewpoint and to form an integrated point set; A shape restorer that removes noise from the integrated point set and restores a three-dimensional shape; A visualization processor configured to visualize the restored three-dimensional shape as a two-dimensional image in which a three-dimensional appearance appears; An element separator configured to extract equipment elements from the restored three-dimensional shape and separate the three-dimensional shapes for each equipment element; A drawing configuration unit for creating a drawing for each facility element and for generating a power generation facility drawing by integrating drawings for each facility element; An element information input unit configured to receive element information for each facility element; It characterized in that it comprises a web processing unit for processing a request of the web server for the structure and management information of the power plant.

In addition, the present invention is a web-based power plant integrated management system using a three-dimensional laser scan technology, wherein the three-dimensional point set input from the scanning data input unit is a three-dimensional coordinate measured by a phase shift (Phase shift) method It features.

In addition, the present invention is a web-based integrated power generation system integrated management system using a three-dimensional laser scan technology, the visualization processing unit, the visualization method by the intensity (intensity) or the three-dimensional intensities using the difference in reflectance of light It is characterized by applying a visualization method by a color (RGB) to change the color to each element of the shape.

In addition, the present invention is a web-based integrated power plant integrated management system using a three-dimensional laser scan technology, the element separation unit, to extract the model having a geometric shape from the restored three-dimensional image, or to the created design drawing It is characterized in that the extraction of the plant elements using the information on the shape of the plant elements according to.

In addition, the present invention is characterized in that the element information input unit receives any one or more of the design drawings, maintenance history, maintenance report, manual for the equipment element.

As described above, according to the web-based power plant integrated management system applying the three-dimensional laser scan technology according to the present invention, the information required for the maintenance of the power plant, equipment improvement, emergencies, etc. accurately and quickly, The effect is to reduce the cost of implementation and to respond quickly at the same time. In particular, it is possible to simplify on-site verification of power generation facilities.

In addition, according to the integrated management system of the web-based power generation equipment applying the three-dimensional laser scan technology according to the present invention, the laser scan data (Laser Scan Data) + three-dimensional model which is a structure managed as-built (three-dimensional) It can be used as an alternative when developing and reviewing the process required for the improvement of equipment by modeling, and the effect that can be used when acquiring equipment status data by deformation of power generation equipment is obtained. In particular, the laser scan information can be stored and managed during the construction of the plant to preserve the records of underground burial.

In addition, according to the integrated management system of the web-based power generation equipment applying the three-dimensional laser scan technology according to the present invention, by providing a facility information by accessing the system on the web, it is possible to quickly respond to the work by linking the field information and technical information A possible effect is obtained. In particular, it is easy to identify realistic sites in case of emergency.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings.

In addition, in describing this invention, the same code | symbol is attached | subjected and the repeated description is abbreviate | omitted.

First, the configuration of the entire system for implementing a web-based integrated power plant integrated management system applying the three-dimensional laser scan technology according to the present invention will be described with reference to FIG.

As shown in Figure 1, the entire system for implementing the present invention is composed of a measurer terminal 11, a user terminal 12, integrated management system 30, a web server 50. In addition, a database 40 for storing necessary data may be additionally configured.

The measurer terminal 11 and the user terminal 12 are computing terminals, and mean a personal computer (PC), a notebook computer, a netbook, a PDA, and the like. The measurer or user inputs or transmits the necessary information to the integrated management system 30 or the web server 50 through an input device such as a mouse or keyboard of the measurer terminal 11 or the user terminal 12. That is, the measurer or the user always performs certain tasks through the terminals 11 and 12. Therefore, hereinafter, a description of a certain task performed by a measurer or a user shall mean that the measurer or user performs a task through the terminals 11 and 12. In addition, 11 and 12 are attached also to a measuring person or a user other than a terminal.

The measurer 11 scans the power generation equipment 20 with the laser scan equipment 15. The laser scan equipment 15 scans the power generation equipment 20 to generate three-dimensional points of clouds. Three-dimensional points of clouds (points of clouds) are the three-dimensional points in the shape of the power plant (20). The measurer transmits the three-dimensional point set generated through the measurer terminal 11 to the integrated management system 30.

The user terminal 12 is a computer terminal mainly used by a manager who manages the power generation facility 20, a mechanic who maintains the facility, and the like. The user accesses the integrated management system 30 or the web server 50 through the user terminal 12. When the manager updates or changes important information of the power generation facility 20, the manager directly accesses the integrated management system 30 to perform a task. That is, the system administrators who directly manage the integrated management system 30 are allowed access.

However, only the web server 50 is allowed to those who perform maintenance work on their own, such as routine maintenance and facility replacement. That is, the maintenance manager can access and view the three-dimensional shape information of the power generation facility 20, information for each facility element, maintenance or failure report, etc. through the web server 50.

The integrated management system 30 receives a three-dimensional point set for the power generation equipment 20 from the measurer terminal 11 and restores and processes the three-dimensional shape of the power generation equipment 20. For example, the integrated management system 30 extracts and separates equipment elements from the restored three-dimensional shape, and creates a drawing for each equipment element. And the three-dimensional shape of the power plant is visualized as a two-dimensional image. In addition, the integrated management system 30 receives and manages management information for each facility element or the entire facility from the user 12 or the measurer 11 and provides the web server 50 with the visualization information.

Web server 50 is a server that is connected to the Internet 20 to provide information about the power generation facility 20 in the form of a web. The web server 50 is preferably constructed to serve as a web service server. A web page for providing a service to the user 12 is provided. In particular, the web server 50 shows the processed result on the web page, or receives the necessary input data through the web page. The web page is meant to include driving software for performing a specific task, such as a web application, in addition to simple text, images, multimedia, and the like. Since such a technique is well known in the art, a detailed description thereof will be omitted.

On the other hand, the web server 50 comprises a utility such as a three-dimensional shape viewer, a viewer of the laser scan data, a design drawing viewer, etc. in order to show the data received from the integrated management system 30 on the web page. Preferably, a universal three-dimensional viewer suitable for a web service is used, and laser scan data or three-dimensional shape data is converted into a data format of a universal three-dimensional viewer. In this way, the trouble of installing the dedicated viewer in the user terminal 12 can be reduced.

Finally, the database 40 will be described. The database 40 stores a 3D point set DB 41 for storing three-dimensional points of clouds scanned by the laser scan device 15, and a 3D modeling model for generating 3D models of power generation facilities and equipment elements in three dimensions. Model DB (43), a drawing DB (44) for storing drawings of power generation facilities and equipment elements, facility element DB (43) for storing management information for each equipment element. However, the configuration of the database 40 is only a preferred embodiment, and in the development of a specific device, it may be configured in a different structure by a database construction theory in view of the ease and efficiency of access and search.

Next, the configuration of a web-based power plant integrated management system applying the three-dimensional laser scan technology according to an embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 3, the integrated management system 30 of the web-based power generation facility using the 3D laser scan technology includes a scanning data input unit 31, an image matching unit 32, a shape restoration unit 33, and a visualization processing unit ( 34), an element separating unit 35, a drawing structure unit 36, an element information input unit 37, and a web processing unit 38.

The scanning data input unit 31 receives three-dimensional points of clouds of the power generation facility from the three-dimensional laser scan device 15. In particular, the three-dimensional point set input from the scanning data input unit 31 is three-dimensional coordinates measured by a phase shift method.

The laser scan equipment 15 is a device that obtains a three-dimensional shape of the equipment by scanning the plant equipment with a laser. These instruments measure the exact distance from the measurement coordinates to the installation to obtain the relative three-dimensional coordinates of the installation. Preferably, the laser scan equipment 15 is capable of measuring units up to microns (~ mm), can be quickly measured in seconds and minutes, and can be measured at a long distance in a measuring range of about 2 to 300m. Use high-end equipment used for

Such laser scan equipment 15 can acquire the actual shape of a facility as it is, and can acquire the information about the shape of a facility or a facility in a connectionless manner. In particular, because it is connectionless, it is possible to minimize the impact on the object and use in hazardous environments.

The principle of measuring the facility or the facility with the laser scan equipment 15 will be described with reference to FIG. 4. The laser scan method that can be applied to the plant equipment includes a time of flight method and a phase shift method.

As shown in FIG. 4A, the time of flight method obtains a 3D coordinate value using the flight time of ions of the laser. When the laser is launched into the installation, the laser ions touch the facility and reflect. At this time, the flight time of the reflected ions are calculated to obtain a three-dimensional distance value between facilities at the position of the observer.

When the three-dimensional distance value is obtained, the relative coordinate with respect to the observer's position coordinate can be obtained from the angle of the three-dimensional image when the laser is fired. As shown in Figure 4c, it can be seen that the shape of the equipment appears by obtaining a three-dimensional relative coordinates (points) for the location where the equipment is detected, put them on the coordinates. 3D points, such as FIG. 4C, are referred to as 3D points of clouds. Each point in the 3D point set has coordinate values along the x, y, and z axes to represent the 3D position.

Although the time of flight method is simple to measure, distortion may occur due to environmental factors. That is, it is affected by vibration, dust, lack of roughness and temperature.

As shown in FIG. 4B, a phase shift method is a data acquisition method using a phase shift. That is, the phase shift is made by using the existing frequency band of the laser. The carrier frequency (carrier) is loaded with various information such as the angle of the encoder of the laser scanning equipment 15 and the laser emission time, and the laser is measured by a facility or a facility and measured.

The phase shift method can use a lot of information to shorten the measurement accuracy and measurement time. In addition, this approach is robust to measurement speed and measurement environmental factors. Therefore, preferably, a device using a phase shift method is used as the laser scan device 15.

Again, the scanning data input unit 31 will be described.

As described above, the 3D point sets received by the scanning data input unit 31 are 3D coordinate values at each point. The three-dimensional coordinates may be relative coordinate values with respect to the measurement position of the measurer or may be absolute coordinate values converted into absolute positions. In the former case, it is preferable to receive the three-dimensional coordinates of the measurer 11 together.

The image matching unit 32 corrects the input point set scanned at a plurality of viewpoints into a three-dimensional point set for one viewpoint, thereby forming a matching point set.

The three-dimensional point set received by the scanning data input unit 31 described above is mostly relative coordinates. In other words, there is no way of knowing the absolute position measured by the measurer 11. By the way, the measurer 11 does not measure in only one place. Plant equipment, such as power plants, is made quite large and three-dimensional, so you can't measure everything in one place. Therefore, the measuring position is moved.

At this time, the three-dimensional point set has a different measuring position. That is, 3D point sets are coordinate values relative to a plurality of viewpoints. Therefore, it is necessary to convert the relative coordinates of these multiple viewpoints to the coordinate values of a single viewpoint. That is, the input 3D point set is matched using a technique of matching the 3D multiview image to a single viewpoint. For example, in FIG. 6A, it can be seen that four three-dimensional point sets are values measured at different time points. An image obtained by matching this to one viewpoint is shown in FIG. 6B. Since the matching technique uses a conventional 3D image synthesis technique, a detailed description thereof will be omitted.

Hereinafter, converting the three-dimensional point set by the plurality of viewpoints into one single viewpoint will be referred to as a matching point set.

The shape restoring unit 33 removes noise from the matching point set and restores the three-dimensional shape.

It is not possible to measure all the shapes of the equipment through the laser scan equipment 15. In other words, the acquired three-dimensional point set is not measured with data having a size and range that perfectly satisfy the specific requirements of the user. Depending on the measurement environment described above, noise may be mixed. Therefore, it is necessary to delete unnecessary parts from the matching point set. In addition, points that do not appear due to poor measurement are restored to restore the original installation shape as much as possible.

The visualization processor 34 visualizes and maps the restored three-dimensional shape into a two-dimensional image in which a three-dimensional appearance appears. In particular, the visualization processor 34 applies a visualization method based on intensity using the difference in reflectance of light, or a visualization method based on color (RGB), which is different in color to each element of a three-dimensional shape. do.

In order to display a 3D shape on a screen that is a 2D image, it must be mapped to a 2D image. At this time, it is preferable to visualize in three dimensions by mapping in two dimensions. In addition, since the three-dimensional shape is a facility composed of a complex structure, it is desirable to show the structure easily. To this end, there are a visualization method according to the intensity (intensity) and a visualization method according to the color (RGB).

As shown in FIG. 7A, the former method is a method of visualizing in three dimensions by inserting contrast using a difference in reflectance of light of a scanned facility. In this case, one color value may be used. If the density of the three-dimensional point set is not dense, you will not see the effect.

As shown in FIG. 7B, a three-dimensional point set is displayed by mapping a two-dimensional image to a color (RGB) value. By changing the color according to the structure, it becomes easier to recognize the structure of the installation.

The element separation unit 35 extracts a facility element from the restored three-dimensional shape, and separates the three-dimensional shape for each facility element.

Extracting equipment elements from the reconstructed three-dimensional shape can be accomplished in two ways. That is, the equipment element may be extracted from the three-dimensional shape by using the three-dimensional modeling technique, or the equipment element may be extracted from the three-dimensional shape by using the design of the equipment.

First, in the former case, 3D modeling is a method of modeling and extracting an element having a geometric shape from a 3D image. For example, the elements of a power plant define the geometric shapes of pipes, cylinders, cylinders, spheres, boxes, corners, cones, and H-beams. Extract the components according to the method. These shapes are standardized and simple shape models.

In the latter case, the design drawings produced at the time of construction of the power plant can be used. In recent years, design drawings are mostly made of CAD, and CAD drawings have a function of shaping in three dimensions. Therefore, information about the shape of each facility element is accumulated according to the design drawing, and the accumulated shape information is used. That is, an element similar to the shape of the accumulated equipment element is extracted from the 3D image. In this case, a conventional technique of recognizing an object from an image is used.

The results of extracting the facility elements from the restored three-dimensional point set are shown in FIGS. 8A and 8B.

The drawing component 36 creates a drawing for each of the facility elements, and generates a power generation facility drawing by integrating the drawings for each facility element.

As described above, when each equipment element is extracted and separated from the 3D image, a drawing is created for each equipment element. In the case of 3D modeling, drawings are created from geometric information, and in the case of using design drawings, more accurate drawings can be created using data of the design drawings. In the latter case, if the conventional design drawing is the old drawing at the time of making the equipment, the drawing produced reflects the as-built status.

In particular, in the former case, drawing creation by three-dimensional modeling is a drawing about a shape. That is, in the case of piping, detailed design information such as the thickness of the piping and the seams in the piping is not included. This information should be supplemented by the design drawings at the time of installation.

The original Piping And Instrumentation Diagram (P & ID) diagram for plant management is an overview of the overall layout. Therefore, the drawings for the shapes are sufficient. Preferably, by connecting the design drawings with the drawings of the shape of the installation element, when the user 12 wants to build in conjunction with the design drawings to see.

Element information input unit 37 receives the management information for each facility element.

The management information for each plant element includes the blueprint, maintenance history, maintenance report, manual, etc. for the plant element. That is, it may include all the information for managing the equipment element.

The web processing unit 38 processes a request of the web server for the structure and management information of the power generation facility.

As previously seen, the web server 50 provides the user 12 with information about the facility by the web service. When the request of the user 12 comes in, the web server 50 analyzes the request and requests the web processor 38 for necessary data. The web processing unit 38 receives a request from the web server 50, obtains the requested data from the database 40, and transmits the requested data to the web server 50.

On the other hand, preferably, when the requested data is three-dimensional shape data or laser scan data, the web processing unit 38 is converted to the data format of the viewer used in the web server 50 and transmitted. In another preferred embodiment, the web processing unit 38 transmits the 3D shape data or the laser scan data as it is, converts the data received from the web server 50 to the data format of the viewer to be used to the user 12 to provide.

As mentioned above, although the invention made by this inventor was demonstrated concretely according to the said Example, this invention is not limited to the said Example, Of course, a various change is possible in the range which does not deviate from the summary.

The present invention is applicable to a system for managing the maintenance of the plant, such as power generation facilities. In particular, the present invention scans the power generation facilities with a laser scan equipment to maintain and manage the elements of the power generation facilities as-built, and integrate and manage management information such as maintenance history, and provide such information on the web. Applicable to the maintenance management system of the facility.

1 is a view showing a screen of a conventional power plant integrated management system.

2 is a view showing the configuration of the entire system for implementing a web-based integrated power plant integrated management system applying the three-dimensional laser scan technology according to the present invention.

3 is a block diagram of the configuration of a web-based power plant integrated management system applying a three-dimensional laser scan technology according to an embodiment of the present invention.

4 is a view for explaining the principle of the three-dimensional laser scan equipment used in the present invention.

5 is a view showing an example of the result of reconstructing a three-dimensional image by scanning the power generation equipment with a three-dimensional laser scan equipment according to the present invention.

6 is a view showing an example of the result of matching the three-dimensional point set scanned at a multi-view point in a single view according to the present invention.

7 is a view showing an example of the result of visualizing the restored three-dimensional shape of the power plant in accordance with the present invention in a two-dimensional image showing a three-dimensional appearance.

8 is a view showing an example of the result of extracting and separating the plant elements from the restored three-dimensional shape of the power plant according to the present invention.

9 is a view showing an example of the results of the two-dimensional drawings and three-dimensional modeling in the restored three-dimensional shape of the power plant according to the present invention.

Explanation of symbols on the main parts of the drawings

11: measurer terminal 12: user terminal

13: Internet 15: laser scan equipment

20: power plant 30: integrated management system

31: scanning data input unit 32: image matching unit

33: shape restoration unit 34: visualization processing unit

35: element separation unit 36: drawing components

37: element information input unit 38: web processing unit

40: Database 41: Point Set DB

42: 3D model DB 43: drawing DB

44: facility element DB 50: web server

60: storage server 65: backup DB

Claims (5)

Three-dimensional, which restores the three-dimensional shape of the power plant from the points of clouds scanned with a three-dimensional laser, extracts the plant elements, automatically manages the plant and provides the plant information to the web server. In the integrated management system of web-based power generation facilities applying laser scan technology, A scanning data input unit for receiving 3D points of clouds of a power generation facility from a 3D laser scan device; An image matching unit configured to correct the input point set scanned at a plurality of viewpoints into a three-dimensional point set for one viewpoint, thereby forming a matching point set; A shape restoring unit for removing noise from the matching point set and restoring a three-dimensional shape; A visualization processor for visualizing and mapping the reconstructed three-dimensional shape into a two-dimensional image in which a three-dimensional appearance appears; An element separator configured to extract equipment elements from the restored three-dimensional shape and separate the three-dimensional shapes for each equipment element; A drawing configuration unit for creating a drawing for each facility element and for generating a power generation facility drawing by integrating drawings for each facility element; An element information input unit configured to receive management information for each facility element; Web-based power plant integrated management system using a three-dimensional laser scan technology, characterized in that it comprises a web processing unit for processing the request of the web server for the structure and management information of the power plant. The method of claim 1, 3D point set input from the scanning data input unit is a three-dimensional coordinates measured by the phase shift (Phase shift) coordinates web-based power generation equipment integrated management system applied. The method of claim 1, wherein the visualization processing unit, 3D laser scan, characterized by applying a visualization method by intensity (intensity) to put the contrast using the difference in reflectance of light or a visualization method by color (RGB) of different colors to each element of the three-dimensional shape Web-based power plant integrated management system applying technology. The method of claim 1, wherein the element separation unit, Applying a three-dimensional laser scan technology, characterized in that by extracting a model having a geometric shape from the reconstructed three-dimensional image, or extracting the equipment element by using information on the shape of the equipment elements according to the created design drawing Web-based power plant integrated management system. The method of claim 1, wherein the element information input unit, Web-based power plant integrated management system applying the three-dimensional laser scan technology, characterized in that any one or more of the blueprint, maintenance history, maintenance report, manual for the equipment elements.

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