CN111814220B - CAE cloud simulation implementation method - Google Patents
CAE cloud simulation implementation method Download PDFInfo
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- CN111814220B CN111814220B CN202010629726.7A CN202010629726A CN111814220B CN 111814220 B CN111814220 B CN 111814220B CN 202010629726 A CN202010629726 A CN 202010629726A CN 111814220 B CN111814220 B CN 111814220B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/12—Geometric CAD characterised by design entry means specially adapted for CAD, e.g. graphical user interfaces [GUI] specially adapted for CAD
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/13—Edge detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
Abstract
The invention discloses a CAE cloud simulation realization method, which simulates a simulation model stored in a cloud service end through simulation software which is remotely operated by a client and deployed on the cloud service end; the cloud server transmits an interactive interface to the client in real time for interactive display; when the cloud server transmits the interactive interface, the cloud server transmits the whole interactive interface and transmits the popup window; the interactive popup transmission comprises the following steps: tracking a cursor in real time and detecting a pop-up window near the cursor; once the pop-up window is detected, identifying the edge of the pop-up window and acquiring the position coordinate of the pop-up window; acquiring an image of the pop-up window according to the identified edge; and transmitting the acquired image to a client for area coverage display. The method and the device have the advantages of reducing the data volume of the real-time interactive interface, improving the response speed of the real-time interactive interface, being beneficial to reducing the system delay, improving the operation experience and the like.
Description
Technical Field
The invention relates to the technical field of cloud computing, in particular to a cloud simulation implementation method of CAE.
Background
The existing cloud computing technology has become the direction of informatization development, and can submit the operation tasks of the system to a cloud service resource pool by using a virtualization technology and automatically manage the storage space and the information service required by various system applications by using software, so that the cost required by informatization is reduced. Cloud computing has been developed into a computing mode widely accepted by the public, and is also a hot spot of general social attention and research.
The Chinese patent document discloses a simulation cloud platform and an implementation method, wherein the authorization notice number is CN104899404B, a high-end graphic workstation is integrated, a simulation cloud platform virtual application module is deployed, a front-back processing module and design software of engineering simulation computing software are integrated, remote calling and management of the application software are realized, and the simulation cloud platform and a cluster computing platform are integrated into a unified computing resource management platform. A user can log in a cloud server platform through a web client, design software and engineering simulation calculation software deployed on the cloud server platform are remotely controlled, and a design model, a simulation model and a simulation result can be stored in a storage server of the cloud server. Because the design and simulation of the model are all dependent on the hardware processing capacity of the cloud service platform, the hardware configuration requirement of the web client side can be greatly reduced.
When a model is designed or simulated, a large amount of interactive operation needs to be performed on design software or engineering simulation computing software, after receiving the operation of a local web client, a cloud service platform needs to transmit an operated interactive interface to the local web client in real time for display, and the interactive interface is transmitted in real time through a network, so that the transmission speed is usually limited by the network speed, and once the network speed is slow, great delay is caused, and the operation experience is influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a CAE cloud simulation implementation method which can reduce the data volume of a real-time interactive interface, improve the response speed of the real-time interactive interface, and is beneficial to reducing system delay and improving operation experience.
In order to solve the technical problems, the invention adopts the following technical scheme:
a CAE cloud simulation implementation method comprises the steps that simulation software deployed on a cloud server is remotely operated by a client to simulate a simulation model stored in the cloud server; the cloud server transmits an interactive interface to the client in real time for interactive display; the method is characterized in that when the cloud server side carries out interactive interface transmission, the method comprises integral transmission for integrally transmitting the complete interactive interface and interactive popup window transmission for transmitting a popup window; the interactive popup transmission comprises the following steps:
s1, tracking the cursor in real time and detecting a pop-up window near the cursor;
s2, once the pop-up window is detected, identifying the edge of the pop-up window and acquiring the position coordinate of the pop-up window;
s3, acquiring an image of the pop-up window according to the identified edge;
and S4, transmitting the acquired image to the client for area coverage display.
Further, when the cloud server side performs interactive interface transmission, the network transmission speed between the client side and the cloud server side is retrieved in real time, once the network transmission speed is lower than a set threshold value, the ratio of interactive popup window transmission to overall transmission is increased, and otherwise, the ratio of interactive popup window transmission to overall transmission is reduced.
Further, when the cloud server performs interactive interface transmission, the method further includes partition transmission for dividing the complete interactive interface into partitions for transmission, where the partition transmission includes the following steps:
f1, firstly, dividing the interactive interface into at least two rectangular partitions, and acquiring coordinate data of each partition;
f2, defining the edge of each partition according to the coordinate data of the partition, and acquiring the image of the partition according to the defined edge;
and F3, transmitting the acquired subarea image to the client for area coverage display.
In conclusion, the method and the device have the advantages of reducing the data volume of the real-time interactive interface, improving the response speed of the real-time interactive interface, being beneficial to reducing the system delay, improving the operation experience and the like.
Drawings
Fig. 1 is a schematic structural diagram of a CAE simulation system.
Fig. 2 is a block diagram of a CAE simulation system.
Detailed Description
The present invention will be described in further detail with reference to examples.
In the specific implementation: as shown in fig. 1 and 2, a CAE simulation system based on a cloud platform includes a client for remote operation and a cloud server for CAD design or CAE simulation, where the cloud server includes a storage server for storing model data and simulation data, a high-performance computing workstation cluster, and a graphics workstation, and is deployed with engineering simulation computing software and design software. The client is a web service client or a thin client and is connected to the cloud server through the Internet.
The simulation analysis personnel log in the cloud server through the client side, the client side sends operation instructions of the mouse and the keyboard to the cloud server, wherein the operation instructions of the mouse comprise a cursor moving instruction and a key clicking instruction, specifically, the client side sends real-time coordinates of the cursor to the cloud server as the cursor moving instruction, and sends recorded clicking state data of a left key or a right key of the mouse to the cloud server as the key clicking instruction.
The cloud server comprises:
and the data receiving unit 1 is used for receiving the mouse and keyboard operation instructions sent by the client, namely the real-time coordinates of the cursor and the left click or right click of the mouse.
The cursor popup window detecting unit 2 is used for tracking a cursor in real time and detecting a popup window near the cursor; specifically, a range having a distance from the cursor of less than 50 pixels is determined as the vicinity of the cursor. Because elements on part of the software interface are prompted or introduced in an operation mode in a pop-up window mode when the cursor passes through or stays at the cursor, the pop-up window has no influence on the specific operation of CAE simulation, and the pop-up window does not have a substantial influence on other parts of the whole interactive interface when the window is popped up, and therefore, the image of the part of the pop-up window only needs to be transmitted to the corresponding position of the client side for display.
For this purpose, the cloud server further comprises a window edge detection unit 3 and an image acquisition unit 4, wherein the window edge detection unit 3 is used for detecting the edge of a pop-up window near a cursor and acquiring the coordinates of the pop-up window; the image acquisition unit 4 is used for acquiring a complete image of the pop-up window according to the edge of the pop-up window detected by the window edge detection unit 4;
in addition, the cloud server further comprises an interface transmission unit 5, which is used for sending the image acquired by the image acquisition unit 4 and the corresponding coordinate data to the client interface for overlay display.
Through the operation, the popup window when the mouse passes through or stays can be independently sent to the client after the popup window passes through the edge recognition and the image is acquired, and compared with the method of acquiring the image of the whole interactive interface and then sending the image to the client, the volume of the image can be greatly reduced, so that the faster response speed can be obtained, and the operation experience is improved. The cloud server has strong graphic processing capacity and data computing capacity, so that the edge recognition and image acquisition of the pop-up window can be completed quickly.
Although the size of the image can be greatly increased by acquiring the image of the whole interactive interface, the whole interface of the client can be refreshed, the display effect is better, and if the network transmission speed can meet the image transmission requirement, the pop-up window does not need to be acquired with the image alone, so that the hardware resource of the cloud server can be saved.
Therefore, in this embodiment, the cloud server further includes a network speed monitoring unit 7 for monitoring the network transmission speed between the client and the cloud server in real time. Therefore, the image transmission time can be calculated according to the ratio of the volume of the whole interactive interface image to the network transmission speed, and if the transmission time is longer than the set maximum delay time, the edge of the pop-up window needs to be identified to obtain the image, and the image is independently sent to the client. Otherwise, the image of the whole interactive interface is directly sent to the client.
Specifically, the following control method can be adopted: in the remote operation process of the client, the cloud server side counts the volume of the complete interactive interface image in the transmission process, and can calculate the corresponding minimum network transmission speed according to the allowed maximum delay time. Therefore, once the network speed monitoring unit 7 detects that the real-time network speed is lower than the minimum network transmission speed, the edge of the pop-up window can be identified, and then an image is obtained and independently sent to the client. Otherwise, the image of the whole interactive interface is directly sent to the client.
When the cloud service side is used, as simulation analysis personnel can log in as clients through different terminals, the resolutions of the different terminals are different, in order to ensure the uniformity of operation, the cloud service side further comprises a coordinate conversion unit 6, and the coordinate conversion unit 6 is used for mutually converting the coordinates in the client interface and the coordinates in the cloud service side interface.
Generally, the interactive interfaces of the engineering simulation calculation software and the design software comprise a work partition for displaying the model and a menu partition at the top of the work partition, while the interactive interfaces of part of the software also comprise auxiliary partitions arranged at the left side and/or the right side of the work partition.
For this purpose, the cloud server further includes a partition unit 8 for partitioning the cloud server interface into partitions, where the partition unit 8 includes a partition storage module 81 for storing coordinate data of each partition and a partition setting module 82 for acquiring coordinate data of each partition, and the partition setting module 82 includes a custom setting component for acquiring coordinate data of cursor click and an automatic setting component for calling the window edge detection unit 3 to acquire coordinate data of a window. The image obtaining unit 4 may further obtain a complete image of the corresponding partition according to the coordinates of each partition. Since the partitions are all rectangular, the partition coordinate data includes coordinates of two opposite corners of the partition.
Therefore, for the partition with higher requirement on the interactive real-time property, the partition can be used as a whole for image transmission, and for the partition with relatively lower requirement on the interactive real-time property, the pop-up window in the partition can be subjected to edge recognition to obtain the image and then the image is transmitted to the client.
When the method is used specifically, the client and the cloud server interact by adopting the following steps:
for convenience of description, acquiring an image of the whole interactive interface and then transmitting the image is called integral transmission, and identifying the edge of the pop-up window and then acquiring the image and then transmitting the image is called interactive pop-up window transmission; the partition transmission is referred to as acquiring the image of the partition and then transmitting the image.
After a simulation analyst logs in a cloud server through a client, and opens engineering simulation computing software or design software, the cloud server calls a partition setting module 82 to divide an interactive interface, and during division, a window edge detection unit 3 can be called to automatically identify the boundary/edge of each partition, and coordinate data of the identified partition is stored in a partition storage module 81; or the coordinate data of two clicks can be recorded as the coordinate data of the partition and stored in the partition storage module 81 through the cursor frame selection.
Dividing the interactive interface into at least two partitions, wherein one partition is a work partition for displaying the model;
when the cloud server transmits the interactive interface, the network transmission speed between the cloud server and the client is monitored in real time through the network speed monitoring unit 7; if the network transmission speed is higher than the first set network speed, performing overall transmission between the cloud server and the client by adopting the screen refreshing frequency of the client; if the network transmission speed is lower than the first set network speed and higher than the second set network speed, reducing the frequency of overall transmission between the cloud server and the client, and increasing partition transmission and interactive popup transmission in an overall transmission gap, specifically: the interactive images of the work subareas are transmitted in subareas, and the interactive images of other subareas are transmitted in interactive pop-up windows; if the client refreshing frequency of 1/3 is adopted for overall transmission, the client refreshing frequency of 2/3 is adopted for partition transmission, pop-up windows of other partitions are detected in real time during partition transmission, and interactive pop-up window transmission is carried out; and if the network transmission speed is lower than the second set network speed, completely replacing all the partition transmission with interactive popup transmission, for example, performing overall transmission by adopting the client refreshing frequency of 1/3, and performing interactive popup transmission by adopting the client refreshing frequency of 2/3.
Specifically, the interactive popup transmission includes the following steps:
s1, tracking the cursor in real time and detecting a pop-up window near the cursor;
s2, once the pop-up window is detected, identifying the edge of the pop-up window and acquiring the position coordinate of the pop-up window;
s3, acquiring an image of the pop-up window according to the identified edge;
and S4, transmitting the acquired image to the client for area coverage display.
The partition transmission comprises the following steps:
f1, firstly, dividing the interactive interface into at least two rectangular partitions, and acquiring coordinate data of each partition;
f2, defining the edge of each partition according to the coordinate data of the partition, and acquiring the image of the partition according to the defined edge;
and F3, transmitting the acquired subarea image to the client for area coverage display.
The above description is only exemplary of the present invention and should not be taken as limiting, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A CAE cloud simulation implementation method comprises the steps that simulation software deployed on a cloud server is remotely operated by a client to simulate a simulation model stored in the cloud server; the cloud server transmits an interactive interface to the client in real time for interactive display; the method is characterized in that when the cloud server side carries out interactive interface transmission, the method comprises integral transmission for integrally transmitting the complete interactive interface and interactive popup window transmission for transmitting a popup window; the interactive popup transmission comprises the following steps:
s1, tracking the cursor in real time and detecting a pop-up window near the cursor;
s2, once the pop-up window is detected, identifying the edge of the pop-up window and acquiring the position coordinate of the pop-up window;
s3, acquiring an image of the pop-up window according to the identified edge;
s4, transmitting the acquired image to a client for area coverage display;
when the cloud server side carries out interactive interface transmission, the network transmission speed between the client side and the cloud server side is detected in real time, once the network transmission speed is lower than a set threshold value, the ratio of interactive popup window transmission to overall transmission is increased, and otherwise, the ratio of the interactive popup window transmission to the overall transmission is reduced.
2. The CAE cloud simulation implementation method of claim 1, wherein the cloud service side, when performing the interactive interface transmission, further comprises a partition transmission for dividing the complete interactive interface into partitions for transmission, and the partition transmission comprises the following steps:
f1, firstly, dividing the interactive interface into at least two rectangular partitions, and acquiring coordinate data of each partition;
f2, defining the edge of each partition according to the coordinate data of the partition, and acquiring the image of the partition according to the defined edge;
and F3, transmitting the acquired subarea image to the client for area coverage display.
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| CN104899404B (en) * | 2015-07-06 | 2018-07-20 | 广州特种机电设备检测研究院 | A kind of emulation cloud platform and implementation |
| US10491758B2 (en) * | 2017-08-16 | 2019-11-26 | Wipro Limited | Method and system for optimizing image data for data transmission |
| CN108304239B (en) * | 2018-01-26 | 2021-09-07 | 杨立群 | Rapid interface interaction method and device for remote operation |
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