CN112769852B - Remote industrial laboratory access system - Google Patents
Remote industrial laboratory access system Download PDFInfo
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- CN112769852B CN112769852B CN202110074926.5A CN202110074926A CN112769852B CN 112769852 B CN112769852 B CN 112769852B CN 202110074926 A CN202110074926 A CN 202110074926A CN 112769852 B CN112769852 B CN 112769852B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
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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
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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
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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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
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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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
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The embodiment of the invention provides an access system for a remote industrial laboratory. The system comprises: the experiment environment unit is deployed on the cloud and configured with an experiment environment matched with the experiment content; the virtual network bridge center is deployed on the cloud and is in communication connection with the experiment environment unit through a first virtual private network based on a data link layer; the equipment unit is deployed in a remote industrial laboratory and is in communication connection with the virtual bridge center through a second virtual private network based on a data link layer; the experimental environment unit is used for sending an experimental operation instruction for indicating experimental operation on the equipment unit to the virtual network bridge center through an experimental environment; the virtual network bridge center is used for forwarding the received experiment operation instruction to the equipment unit; and the equipment unit is used for carrying out experiment operation according to the received experiment operation instruction. The embodiment can effectively control the experimental equipment to carry out experimental operation. In addition, an experimental environment meeting experimental requirements can be provided.
Description
Technical Field
The embodiment of the application relates to the field of online education, in particular to an access system of a remote industrial laboratory.
Background
With the development of remote online education, various education institutions and factories publish a plurality of online industrial control education courses on the internet, the current teaching form is mainly explained and displayed, namely, students mainly take a passive input learning link as a main part, and an active output learning link is lacked to strengthen the learning content, for example, a matched experimental link is lacked to verify the content learned by the students, partial functions can be realized through simulation, but a larger gap still exists compared with actual hardware equipment, and a plurality of experiments must be realized by connecting the actual hardware equipment, so that the establishment of a remote industrial laboratory for the students is beneficial to the students to strengthen the learning content through the experimental link.
At present, experimental equipment of a remote industrial laboratory mainly adopts PROFINET bus connection communication of industrial Ethernet. During an experiment, a student needs to use industrial software to allocate an IP address to a PLC (Programmable Logic Controller) and allocate a device name to a distributed input/output device, otherwise, a configuration cannot be downloaded to the PLC, and the distributed input/output device cannot be identified by the input/output Controller. Industrial software implements these operations through a PN-DCP (PROFINET Discovery and basic Configuration Protocol), which is a communication Protocol based on a data link layer and uses data frames of an ethernet data link layer, whereas the current remote laboratory solution usually uses an ethernet network layer to remotely connect experimental equipment, so that the industrial software cannot implement the operations. In addition, the experimental facility relates to a great variety, and needs to install a variety of industrial software, wherein problems such as compatibility between software and software, compatibility between software and an operating system, and PC performance are involved, and it is difficult for a student to have an experimental environment completely meeting experimental requirements.
Therefore, how to effectively control the experimental equipment to perform the experimental operation and provide the experimental environment meeting the experimental requirements becomes a technical problem to be solved urgently at present.
Disclosure of Invention
In order to solve the technical problem, embodiments of the present application provide an access system for a remote industrial laboratory to at least partially solve the technical problem.
According to a first aspect of embodiments herein, there is provided an access system for a remote industrial laboratory, the system comprising: the system comprises an experiment environment unit, a cloud terminal and a cloud terminal, wherein the experiment environment unit is deployed on the cloud terminal and is configured with an experiment environment matched with experiment contents; the virtual bridge center is deployed on the cloud end and is in communication connection with the experiment environment unit through a first virtual private network based on a data link layer; a device unit deployed within the remote industrial laboratory and communicatively connected to the virtual bridge center through a second virtual private network based on the data link layer; the experimental environment unit is used for sending an experimental operation instruction for instructing the experimental operation of the equipment unit to the virtual network bridge center through an experimental environment matched with the experimental content; the virtual network bridge center is used for receiving the experiment operation instruction sent by the experiment environment unit and forwarding the experiment operation instruction to the equipment unit; and the equipment unit is used for receiving the experiment operation instruction forwarded by the virtual network bridge center and carrying out experiment operation according to the experiment operation instruction.
Optionally, the system further comprises: the experimental environment login equipment is in communication connection with the cloud end through the internet and used for logging in the experimental environment matched with the experimental content and configured in the experimental environment unit through a remote desktop application program installed in the experimental environment login equipment.
Optionally, the system further comprises: the experiment reservation platform is in communication connection with the cloud end through the Internet and used for determining an experiment environment image file corresponding to the reserved experiment content according to the reserved experiment content, generating an experiment environment configuration request according to the experiment environment image file, and sending the generated experiment environment configuration request to the cloud end according to the reserved experiment time period, so that the cloud end configures the experiment environment matched with the reserved experiment content in the experiment environment unit according to the experiment environment configuration request.
Optionally, the experiment reservation platform is further configured to send the generated experiment environment release request to the cloud according to an experiment ending time point in the reserved experiment time period, so that the cloud releases the experiment environment unit according to the experiment environment release request.
Optionally, a terminal bridge is disposed in the experiment environment unit, the virtual bridge center includes a plurality of virtual bridges isolated from each other, and the terminal bridge disposed in the experiment environment unit is in communication connection with a corresponding virtual bridge in the virtual bridge center through the first virtual private network.
Optionally, the apparatus unit comprises: experimental equipment; the equipment network bridge is in communication connection with the experimental equipment; the equipment network bridge is used for receiving the experiment operation instruction forwarded by the virtual network bridge center and forwarding the experiment operation instruction to the experiment equipment; the experimental device is used for receiving the experimental operation instruction forwarded by the device network bridge and performing experimental operation according to the experimental operation instruction.
Optionally, the apparatus unit further comprises: an image acquisition device communicatively coupled to the device network bridge; and the image acquisition device is used for acquiring images of experimental operation of the experimental equipment according to the experimental operation instruction so as to monitor the experimental operation of the experimental equipment.
Optionally, the equipment bridge includes internet of things gateway equipment, the integration of internet of things gateway equipment has first net gape and second net gape, first net gape as internal network interface with experimental facilities with image acquisition device communication connection, the second net gape as external network interface pass through the second virtual private network with virtual bridge center communication connection.
Optionally, the system further comprises: an egress router deployed within the remote industrial laboratory and having a first end communicatively coupled to the virtual bridge center and a second end communicatively coupled to the second portal.
Optionally, the virtual bridge center includes a plurality of virtual bridges isolated from each other, and the device bridge included in the device unit establishes the second virtual private network with a corresponding virtual bridge in the virtual bridge center through the egress router.
The access system of the remote industrial laboratory comprises an experiment environment unit, a cloud terminal and a remote industrial laboratory, wherein the experiment environment unit is deployed on the cloud terminal and is configured with an experiment environment matched with experiment contents; the virtual bridge center is deployed on the cloud end and is in communication connection with the experiment environment unit through a first virtual private network based on a data link layer; the equipment unit is deployed in a remote industrial laboratory and is in communication connection with the virtual bridge center through a second virtual private network based on the data link layer; the experimental environment unit is used for sending an experimental operation instruction for instructing the experimental operation of the equipment unit to the virtual network bridge center through the experimental environment; the virtual bridge center is used for forwarding the received experiment operation instruction to the equipment unit; and the equipment unit is used for carrying out experiment operation according to the received experiment operation instruction. Compared with the existing mode, the experimental environment unit deployed on the cloud end is in communication connection with the virtual network bridge center deployed on the cloud end through the first virtual private network based on the data link layer, and the virtual network bridge center deployed on the cloud end is in communication connection with the equipment unit deployed in the remote industrial laboratory through the second virtual private network based on the data link layer, so that the experimental environment unit deployed on the cloud end is in communication connection with the equipment unit deployed in the remote industrial laboratory through the first virtual private network and the second virtual private network based on the data link layer, and experimental equipment in the equipment unit can be effectively controlled to perform experimental operation. In addition, the experiment environment unit deployed on the cloud is provided with an experiment environment matched with experiment contents, so that an experiment environment meeting experiment requirements can be provided.
Drawings
The drawings are only for purposes of illustrating and explaining the present application and are not to be construed as limiting the scope of the present application. Wherein the content of the first and second substances,
FIG. 1 illustrates a schematic structural diagram of an access system of a remote industrial laboratory according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating the structure of an experimental environment unit and a virtual bridge center according to an embodiment of the present application;
FIG. 3 shows a schematic structural diagram of an apparatus unit of an embodiment of the present application;
fig. 4 shows a schematic diagram of a communication connection of an access system of a remote industrial laboratory according to an embodiment of the present application.
Description of reference numerals:
10: an experimental environment unit;
20: a virtual bridge center;
30: an equipment unit;
40: logging in equipment in an experimental environment;
50: an experiment appointment platform;
60: a cloud end;
70: an egress router;
80: a remote industrial laboratory;
90: a virtual private network based on a data link layer;
11: an industrial application program;
12: a terminal bridge;
21: a virtual bridge;
31: a device bridge;
32: experimental equipment;
33: an image acquisition device.
Detailed Description
In order to more clearly understand the technical features, objects and effects of the embodiments of the present application, specific embodiments of the present application will be described with reference to the accompanying drawings.
Referring to fig. 1, a schematic structural diagram of an access system of a remote industrial laboratory according to an embodiment of the present application is shown. The access system of the remote industrial laboratory provided by the embodiment of the application comprises an experimental environment unit 10, wherein the experimental environment unit 10 is deployed on a cloud 60, and the experimental environment unit 10 is configured with an experimental environment matched with experimental contents; a virtual bridge center 20, wherein the virtual bridge center 20 is deployed on the cloud 60, and the virtual bridge center 20 is in communication connection with the experimental environment unit 10 through a first virtual private network based on a data link layer; a device unit 30, said device unit 30 being deployed within said remote industrial laboratory 80, and said device unit 30 being communicatively connected to said virtual bridge center 20 via a second virtual private network based on said data link layer; the experimental environment unit 10 is configured to send an experimental operation instruction for instructing to perform an experimental operation on the device unit 30 to the virtual network bridge center 20 through an experimental environment matched with the experimental content; the virtual network bridge center 20 is configured to receive the experiment operation instruction sent by the experiment environment unit 10, and forward the experiment operation instruction to the equipment unit 30; the device unit 30 is configured to receive the experiment operation instruction forwarded by the virtual bridge center 20, and perform an experiment operation according to the experiment operation instruction.
In this embodiment, the experimental environment unit 10 deployed on the cloud 60 is in communication connection with the virtual bridge center 20 deployed on the cloud 60 through the first vpn based on the data link layer, and the virtual bridge center 20 deployed on the cloud 60 is in communication connection with the equipment unit 30 deployed in the remote industrial laboratory 80 through the second vpn based on the data link layer, so that the experimental environment unit 10 deployed on the cloud 60 is in communication connection with the equipment unit 30 deployed in the remote industrial laboratory 80 through the first vpn and the second vpn based on the data link layer, thereby effectively controlling the experimental equipment in the equipment unit 30 to perform experimental operations. In addition, the experiment environment unit 10 disposed on the cloud 60 is configured with an experiment environment matching with the experiment content, so that an experiment environment meeting the experiment requirements can be provided.
In this embodiment, the cloud end 60 may be a public cloud, a private cloud, a hybrid cloud, or the like. As shown in fig. 2, the experimental environment unit 10 may be formed by a cloud host deployed in a public cloud, and the cloud host as the experimental environment unit 10 is configured with an experimental environment matching experimental content. The experimental environment can be understood as an industrial application 11, such as TIA, SIMATIC Net, etc., which is matched with the experimental contents, so as to provide a complete, reliable and high-performance experimental environment for the students. Particularly, most IT basic knowledge of students taking part in the automatic training course is relatively deficient, so that the experimental environment is prepared in advance, the students can be conveniently and directly accessed to operate through simple operation, the learning threshold of the students is greatly reduced, the experimental failure caused by software problems is avoided, and the learning efficiency is improved. The virtual bridge center 20 may be formed by one or a group of cloud hosts, and the virtual bridge center 20 includes a plurality of isolated virtual bridges 21, where these virtual bridges 21 are called relay ports, that is, the virtual bridges 21 are used to forward the experiment operation instructions sent by the experiment environment unit 10 to the equipment unit 30 deployed in the remote industrial laboratory 80. The virtual bridge 21 may be understood as a bridge function implemented by a configured bridge application program on a cloud host constituting the virtual bridge center 20. Furthermore, according to the experimental contents, all the experimental facilities in the remote industrial laboratory 80 may be designed as the individual independent facility units 30.
In some optional embodiments, the system further comprises: the experimental environment login device 40 is in communication connection with the cloud 60 through the internet, and is used for logging in the experimental environment configured in the experimental environment unit 10 and matched with the experimental content through a remote desktop application installed in the experimental environment login device 40. Therefore, the experiment environment matched with the experiment content configured in the experiment environment unit is logged in through the remote desktop application program installed in the experiment environment login equipment, and the experiment operation of the experiment equipment in the equipment unit can be effectively carried out.
In a specific example, the experimental environment login device 40 may be a desktop computer, a laptop computer, a tablet computer or other intelligent electronic device with control capability for experimental environment login. The experimental environment login device 40 is in communication connection with the cloud end 60 in a wired or wireless mode, and communicates with the cloud end 60 through a connection channel. Specifically, communication connection can be realized between the experimental environment login device 40 and the cloud 60 through a wired broadband or a mobile network such as GSM, GPRS, LTE, or through modes such as bluetooth, WIFI, infrared ray, and the like, and this embodiment does not limit the specific communication connection mode between the experimental environment login device 40 and the cloud 60. Specifically, the student may log in the experimental environment configured in the experimental environment unit 10 and matched with the experimental content through a remote desktop application carried by a Windows operating system of the desktop computer, and directly operate the experimental equipment in the equipment unit 30 to perform the experimental operation.
In some optional embodiments, the system further comprises: the experiment reservation platform 50 is in communication connection with the cloud end 60 through the internet, and is used for determining an experiment environment image file corresponding to reserved experiment contents according to the reserved experiment contents, generating an experiment environment configuration request according to the experiment environment image file, and sending the generated experiment environment configuration request to the cloud end 60 according to a reserved experiment time period, so that the cloud end 60 configures an experiment environment matched with the reserved experiment contents in the experiment environment unit 10 according to the experiment environment configuration request. Therefore, by reserving the experiment contents and the experiment time periods in the experiment reservation platform, the experiment environment matched with the reserved experiment contents can be configured in the experiment environment unit, so that the experiment operation of the experiment equipment in the equipment unit by a student is facilitated.
In one particular example, the experiment reservation platform 50 may be installed on a desktop computer, laptop computer, tablet computer, or other intelligent electronic device with control capabilities. The experiment reservation platform 50 is in communication connection with the cloud end 60 in a wired or wireless mode, and is in communication with the cloud end 60 through a connection channel. Specifically, communication connection can be realized between the experiment reservation platform 50 and the cloud end 60 through mobile networks such as GSM, GPRS, LTE, or communication connection can be performed through modes such as bluetooth, WIFI, infrared ray, and the like, and this embodiment does not limit the specific communication connection mode between the experiment reservation platform 50 and the cloud end 60. The experiment environment image file stores experiment environment configuration information corresponding to the reserved experiment content, for example, preinstalled information of an industrial application program matched with the reserved experiment content, an installation mode of the industrial application program matched with the reserved experiment content, and the like. When an experiment environment configuration request is generated according to the experiment environment image file, the experiment reservation platform 50 gives the experiment environment configuration information stored in the experiment environment image file to a load field of the experiment environment configuration request to generate the experiment environment configuration request. When the generated experimental environment configuration request is sent to the cloud 60 according to the reserved experimental time period, the experimental reservation platform 50 sends the generated experimental environment configuration request to the cloud 60 according to the experimental starting time point in the reserved experimental time period. Specifically, the experiment reservation platform 50 may send the generated experiment environment configuration request to the cloud 60 before an experiment starting time point in the reserved experiment time period. In an optional implementation manner, after completing configuration of the experimental environment according to the experimental environment configuration request, the cloud 60 sends an experimental environment configuration response to the experimental environment configuration request to the experimental appointment platform 50, where the experimental environment configuration response carries a login password or a login password of the configured experimental environment, and the experimental appointment platform sends an instant message to the handheld terminal of the student according to the received login password or login password of the configured experimental environment carried by the experimental environment configuration response to inform the student of the login password or login password of the configured experimental environment, so as to ensure the safety and effectiveness of the experimental operation performed by the student on the experimental equipment in the equipment unit.
In some optional embodiments, the experiment reservation platform 50 is further configured to send the generated experiment environment release request to the cloud 60 according to an experiment ending time point in the reserved experiment time period, so that the cloud 60 releases the experiment environment unit 10 according to the experiment environment release request. Specifically, the experiment reservation platform 50 may send the generated experiment environment release request to the cloud 60 after the experiment end time point in the reserved experiment time period, so that the cloud 60 releases the experiment environment unit 10 according to the experiment environment release request. Wherein, the load field of the experiment environment release request carries information indicating the experiment environment unit 10 of the cloud end that needs to be released. Therefore, the generated experiment environment release request is sent to the cloud end, so that the cloud end releases the experiment environment unit, the hardware resource of the cloud end can be effectively saved, and the cost for experiment operation of the experiment equipment in the equipment unit by using the experiment environment by students can be saved.
In some optional embodiments, as shown in fig. 2, a terminal bridge 12 is disposed in the experiment environment unit 10, and the virtual bridge center 20 includes a plurality of virtual bridges 21 isolated from each other, and the terminal bridge 12 disposed in the experiment environment unit 10 is communicatively connected to a corresponding virtual bridge 21 in the virtual bridge center 20 through the first virtual private network. By establishing the first virtual private network between the terminal bridge and the corresponding virtual bridge in the virtual bridge center, the experimental environment unit can transmit the data frame based on the data link layer to the corresponding virtual bridge in the virtual bridge center through the terminal bridge.
In a specific example, if experimental operation is performed on the experimental device in the device unit 30 through the experimental environment in the experimental environment unit 10, it is necessary to interface the network between the experimental environment unit 10 and the virtual bridge 21 in the virtual bridge center 20, and for the cloud hosts in the public cloud, although the two cloud hosts appear to be in the local area network of the same IP network segment, communication between the two cloud hosts is implemented through the network layer communication protocol, the data frame based on the data link layer in the experimental environment unit 10 cannot be directly sent to the virtual bridge in the virtual bridge center 20, so that a terminal bridge 12 is also added to the cloud host as the experimental environment unit 10, and establishes the first virtual private network based on the data link layer with the virtual bridge 21 in the virtual bridge center 20. The terminal bridge 12 can be understood to be a gateway device which connects two local area networks.
In some alternative embodiments, as shown in fig. 3, the equipment unit 30 includes: the experimental equipment 32; a device bridge 31, said device bridge 31 being communicatively connected to said experimental device 32; the device bridge 31 is configured to receive the experiment operation instruction forwarded by the virtual bridge center 20, and forward the experiment operation instruction to the experiment device 32; the experimental device 32 is configured to receive the experiment operation instruction forwarded by the device network bridge 31, and perform an experiment operation according to the experiment operation instruction. The device bridge 31 may be understood as a gateway device connecting two lans, and the experimental device 32 may be a PLC (Programmable Logic Controller), a frequency converter, a motor, and the like. Therefore, the experimental operation instruction forwarded by the virtual bridge center is forwarded to the experimental equipment through the equipment bridge, and the experimental equipment can be effectively controlled to perform experimental operation according to the experimental operation instruction.
In some alternative embodiments, as shown in fig. 3, the equipment unit 30 further includes: an image capture device 33, said image capture device 33 communicatively connected to said device bridge 31; the image collecting device 33 is configured to collect an image of an experimental operation performed by the experimental apparatus 32 according to the experimental operation instruction, so as to monitor the experimental operation of the experimental apparatus 32. Wherein, the image capturing device 33 may be an IP camera. Therefore, the image acquisition device acquires the image of the experimental operation of the experimental equipment according to the experimental operation instruction, and the experimental operation of the experimental equipment can be effectively monitored.
In some optional embodiments, the device bridge 31 includes an internet of things gateway device, which is integrated with a first internet access and a second internet access, where the first internet access is used as an internal network interface to be communicatively connected with the experimental device 32 and the image acquisition device 33, and the second internet access is used as an external network interface to be communicatively connected with the virtual bridge center 20 through the second virtual private network. Therefore, through the first network port and the second network port integrated by the gateway device of the internet of things, the received experiment operation instruction forwarded by the virtual network bridge center can be effectively forwarded to the experiment device, and the image acquired by the image acquisition device and subjected to experiment operation by the experiment device can be effectively sent to the virtual network bridge center.
In a specific example, the internet of things gateway device may be a SIEMENS IoT2040. By deploying the virtual bridge center 20 in the cloud 60, the SIEMENS IoT2040 at any place can be conveniently accessed to the virtual bridge in the virtual bridge center 20, and any experimental equipment based on the ethernet can be modeled as an independent equipment unit 30 by the SIEMENS IoT2040, so that the equipment unit 30 can be deployed in any place with network conditions, even a mobile laboratory, and is flexible and convenient.
In some optional embodiments, the system further comprises: an egress router 70, the egress router 70 being deployed within the remote industrial laboratory 80 and a first end of the egress router 70 being communicatively coupled to the virtual bridge center 20 and a second end of the egress router 70 being communicatively coupled to the second portal. Thereby, access to the virtual bridge center by the appliance bridge in the appliance unit can be facilitated through the egress router.
In some optional embodiments, the virtual bridge center 20 includes a plurality of isolated virtual bridges 21, and the device bridge 31 included in the device unit 30 establishes the second virtual private network with a corresponding virtual bridge 21 in the virtual bridge center 20 through the egress router 70. Whereby, by establishing the second virtual private network between the appliance bridge and a corresponding one of the virtual bridge centers, the corresponding one of the virtual bridge centers is able to efficiently forward data frames based on the data link layer to the appliance bridge.
In one specific example, a remote industrial laboratory designs all experimental equipment by experimental content as individual independent equipment units 30 connected to the internet through an egress router 70. Each set of equipment unit 30 consists of SIEMENS IoT2040, an IP camera, and experimental equipment. The SIEMENS IoT2040 is a low-cost intelligent Internet of things gateway device, and is integrated with two independent Ethernet ports, one of the Ethernet ports is used as an internal network interface to be connected with the experimental device 32 to realize the function of network segmentation, the other Internet port is connected with an external network to be used as a device bridge 31, and a second virtual private network based on the data link layer is established with the virtual bridge 21 of the virtual bridge center 20 deployed on the public cloud through the egress router 70. Each device bridge 31 has a corresponding virtual bridge 21 in the virtual bridge center 20. Finally, a virtual private network based on the data link layer is built from the cloud experimental environment unit 10 to the remote industrial laboratory equipment unit 30, so that the purpose of completely and directly controlling the experimental equipment 32 in the equipment unit 30 to perform experimental operation from the experimental environment of the cloud experimental environment unit 10 is achieved.
In a specific example, as shown in fig. 4, the remote industrial laboratory access system includes a plurality of the experimental environment units 10, the virtual bridge center 20, and a plurality of the equipment units 30. The terminal bridge 12 in each experimental environment unit 10 is in communication connection with the corresponding virtual bridge 21 in the virtual bridge center 20 through the first virtual private network based on the data link layer, and the corresponding virtual bridge 21 in the virtual bridge center 20 is in communication connection with the corresponding equipment bridge 31 in the equipment unit 30 through the second virtual private network based on the data link layer, so that the virtual private network 90 based on the data link layer between the terminal bridge 12 in each experimental environment unit 10 and the corresponding equipment bridge 31 in the equipment unit 30 is finally built. Specifically, when a plurality of students perform experiment operations simultaneously, the terminal bridge 12 in each experiment environment unit 10 and the corresponding virtual bridge 21 establish a first virtual private network based on the data link layer, and each virtual bridge 21 and the corresponding device bridge 31 in the device unit 30 establish a second virtual private network based on the data link layer. The two-layer virtual private networks (the virtual private network 90 based on the data link layer) which are completely independent are respectively established, so that experimental operations among students who perform experiments at the same time can be ensured not to interfere with each other, and the students can only operate and monitor the experimental equipment distributed to the students. Furthermore, the experimental link of the online teaching product is perfected, the learning cost of students is reduced, and the idle rate of experimental equipment is reduced, so that the market advantage and the competitiveness of online education are effectively improved.
It is to be understood that while the present invention has been described in terms of various embodiments, it is not intended that each embodiment be limited to a single embodiment, but rather that each embodiment is provided for clarity and has been described herein in terms of its own separate component.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the embodiments of the present invention shall fall within the scope of the embodiments of the present invention.
Claims (9)
1. An access system for a remote industrial laboratory, the system comprising:
the experiment environment unit (10), the experiment environment unit (10) is deployed on a cloud end (60), and the experiment environment unit (10) is configured with an experiment environment matched with experiment contents;
a virtual bridge center (20), wherein the virtual bridge center (20) is deployed on the cloud (60), and the virtual bridge center (20) is in communication connection with the experimental environment unit (10) through a first virtual private network based on a data link layer;
a device unit (30), said device unit (30) being deployed within said remote industrial laboratory (80) and said device unit (30) being communicatively connected to said virtual bridge center (20) through a second virtual private network based on said data link layer;
the experiment environment unit (10) is used for sending an experiment operation instruction for instructing the experiment operation of the equipment unit (30) to the virtual network bridge center (20) through an experiment environment matched with the experiment content;
the virtual bridge center (20) is configured to receive the experiment operation instruction sent by the experiment environment unit (10), and forward the experiment operation instruction to the equipment unit (30);
the equipment unit (30) is used for receiving the experiment operation instruction forwarded by the virtual bridge center (20) and performing experiment operation according to the experiment operation instruction;
the experimental environment unit (10) is provided with a terminal bridge (12), and the virtual bridge center (20) comprises a plurality of virtual bridges (21) which are isolated from each other,
the terminal bridge (12) arranged in the experimental environment unit (10) is in communication connection with a corresponding virtual bridge (21) in the virtual bridge center (20) through the first virtual private network.
2. The remote industrial laboratory access system of claim 1, wherein the system further comprises:
the experimental environment login device (40) is in communication connection with the cloud end (60) through the internet, and is used for logging in the experimental environment matched with the experimental content configured in the experimental environment unit (10) through a remote desktop application program installed in the experimental environment login device (40).
3. The remote industrial laboratory access system of claim 1, wherein the system further comprises:
the experiment reservation platform (50) is in communication connection with the cloud end (60) through the Internet and used for determining an experiment environment image file corresponding to the reserved experiment content according to the reserved experiment content, generating an experiment environment configuration request according to the experiment environment image file and then sending the generated experiment environment configuration request to the cloud end (60) according to the reserved experiment time period, so that the cloud end (60) configures the experiment environment matched with the reserved experiment content in the experiment environment unit (10) according to the experiment environment configuration request.
4. The remote industrial laboratory access system of claim 3,
the experiment reservation platform (50) is further configured to send the generated experiment environment release request to the cloud end (60) according to an experiment ending time point in the reserved experiment time period, so that the cloud end (60) releases the experiment environment unit (10) according to the experiment environment release request.
5. The remote industrial laboratory access system according to claim 1, wherein said equipment unit (30) comprises:
an experimental device (32);
a device bridge (31), said device bridge (31) being communicatively connected with said experimental device (32);
the equipment bridge (31) is used for receiving the experiment operation instruction forwarded by the virtual bridge center (20) and forwarding the experiment operation instruction to the experiment equipment (32);
the experimental device (32) is configured to receive the experimental operation instruction forwarded by the device network bridge (31), and perform an experimental operation according to the experimental operation instruction.
6. The remote industrial laboratory access system according to claim 5, wherein said equipment unit (30) further comprises:
an image acquisition device (33), the image acquisition device (33) being communicatively connected to the device network bridge (31);
the image acquisition device (33) is used for acquiring images of experimental operation of the experimental equipment (32) according to the experimental operation instruction so as to monitor the experimental operation of the experimental equipment (32).
7. The remote industrial laboratory access system according to claim 6, wherein said device bridge (31) comprises an internet of things gateway device integrated with a first portal as an internal network interface communicatively connected with said laboratory device (32) and said image acquisition apparatus (33) and a second portal as an external network interface communicatively connected with said virtual bridge center (20) through said second virtual private network.
8. The remote industrial laboratory access system of claim 7, wherein the system further comprises:
an egress router (70), the egress router (70) being deployed within the remote industrial laboratory (80) and a first end of the egress router (70) being communicatively connected to the virtual bridge center (20) and a second end of the egress router (70) being communicatively connected to the second portal.
9. Remote industrial laboratory access system according to claim 8, wherein the virtual bridge center (20) comprises a plurality of mutually isolated virtual bridges (21),
the device bridge (31) comprised by the device unit (30) establishes the second virtual private network with a corresponding virtual bridge (21) in the virtual bridge center (20) via the egress router (70).
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| US8838756B2 (en) * | 2009-07-27 | 2014-09-16 | Vmware, Inc. | Management and implementation of enclosed local networks in a virtual lab |
| US8892706B1 (en) * | 2010-06-21 | 2014-11-18 | Vmware, Inc. | Private ethernet overlay networks over a shared ethernet in a virtual environment |
| CN102460393B (en) * | 2009-05-01 | 2014-05-07 | 思杰系统有限公司 | Systems and methods for establishing a cloud bridge between virtual storage resources |
| US9741256B2 (en) * | 2011-11-07 | 2017-08-22 | Board Of Regents Of The University Of Texas System | Remote laboratory gateway |
| US10311171B2 (en) * | 2015-03-02 | 2019-06-04 | Ca, Inc. | Multi-component and mixed-reality simulation environments |
| EP3404420A1 (en) * | 2017-05-15 | 2018-11-21 | Eppendorf AG | Laboratory instrument, laboratory instrument network and method for working on laboratory samples |
| US10657020B2 (en) * | 2017-06-05 | 2020-05-19 | Cisco Technology, Inc. | Automation and augmentation of lab recreates using machine learning |
| WO2019014507A1 (en) * | 2017-07-12 | 2019-01-17 | HelixAI, Inc. | Virtual laboratory assistant platform |
| CN107370739B (en) * | 2017-07-28 | 2020-11-03 | 苏州大学 | Signal processing virtual experiment simulation system and method based on cloud server |
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| CN110932958A (en) * | 2019-12-05 | 2020-03-27 | 浙江中控科教仪器设备有限公司 | Cloud virtual sharing practice teaching platform and remote control method |
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