CN108965366A - A kind of querying method and device of version information - Google Patents
A kind of querying method and device of version information Download PDFInfo
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- CN108965366A CN108965366A CN201710597071.8A CN201710597071A CN108965366A CN 108965366 A CN108965366 A CN 108965366A CN 201710597071 A CN201710597071 A CN 201710597071A CN 108965366 A CN108965366 A CN 108965366A
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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]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/085—Retrieval of network configuration; Tracking network configuration history
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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
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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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
Abstract
The embodiment of the invention provides a kind of querying method of version information and devices, client, NM server are located in IP network, industrial personal computer, view networked server and view networked terminals are located in view networking, the described method includes: inquiry request of the NM server according to client, inquiry depending on the log-on message of networked terminals, version querying order and are sent to industrial personal computer depending on networked server subordinate；Industrial personal computer judges whether be connected under view networked server depending on networked terminals；If so, industrial personal computer is logged in depending on networked terminals using log-on message and version querying order is sent to view networked terminals；Industrial personal computer receives the view networked terminals version information that inquires of execution version querying order and is sent to NM server；Version information is sent to client by NM server.The version information for realizing the terminal in the view networking of IP network remote inquiry, removes the version information for being viewed locally view networked terminals manually without user, improves the simplicity of operation.
Description
Technical field
The present invention relates to view networking technology fields, querying method and a kind of version letter more particularly to a kind of version information
The inquiry unit of breath.
Background technique
It is a real-time network depending on networking, can be realized the whole network HD video real-time Transmission, numerous Internet applications are pushed away
To HD video, high definition is face-to-face.
By HD video meeting, video monitoring, Intellectualized monitoring analysis, emergency command, digital broadcast television, delay electricity
Depending on, the Web-based instruction, live broadcast, VOD program request, TV Mail, individual character record (PVR), Intranet (manages) channel by oneself, intelligent video
It is flat that the services such as tens of kinds of videos, voice, picture, text, communication, the data such as Broadcast Control, information publication are all incorporated into a system
Platform realizes that high-definition quality video plays by TV or computer.
When view networks access IP network, the version information of inquiry view networked terminals is wanted positioned at the user of IP network, needs hand
It moves and locally checks the version information for regarding networked terminals by remote controler, it is cumbersome.
Summary of the invention
In view of the above problems, it proposes the embodiment of the present invention and overcomes the above problem or at least partly in order to provide one kind
A kind of querying method of the version information to solve the above problems and a kind of corresponding inquiry unit of version information.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of querying method of version information, clients, network management
Server is located in IP network, and industrial personal computer, view networked server and view networked terminals are located in view networking, which comprises
Inquiry request of the NM server according to the client inquires the view connection of the view networked server subordinate
The log-on message of network termination, version querying order are simultaneously sent to industrial personal computer；
Industrial personal computer judges described whether be connected under the view networked server depending on networked terminals；If so, industrial personal computer is adopted
It is logged in the log-on message and described is sent to the view networked terminals depending on networked terminals and by the version querying order；
Industrial personal computer, which receives, described to be executed version information that the version querying order inquires depending on networked terminals and is sent to
NM server；
The version information is sent to the client by NM server.
Optionally, inquiry request of the NM server according to the client inquires the view networked server category
Under described include: depending on the log-on message of networked terminals, version querying order and the step of being sent to industrial personal computer
NM server extracts the ID of the view networked server, view networking from the inquiry request of the client
The ID of terminal；
The first IP address of the industrial personal computer of the ID subordinate of the view networked server is inquired in preset database, with
And corresponding second IP address of ID, the user name, password of the view networked terminals；
Corresponding second IP address of the ID depending on networked terminals, user name, password and version querying order are sent to
Industrial personal computer belonging to first IP address.
Optionally, the industrial personal computer is ordered using log-on message login is described depending on networked terminals and by the version querying
Order is sent to described includes: depending on the step of networked terminals
The user name is sent to view networked terminals belonging to second IP address by industrial personal computer；
Industrial personal computer receives the response message that the view networked terminals return；
The password is sent to view networked terminals belonging to second IP address by industrial personal computer；
Industrial personal computer receives the logging state information that the view networked terminals return；
The version querying order is sent to the view and joined by industrial personal computer when the logging state information is to login successfully
Network termination.
Optionally, inquiry request of the NM server according to the client inquires the view networked server category
Under described include: depending on the log-on message of networked terminals, version querying order and the step of being sent to industrial personal computer
Inquiry request of the NM server according to the client inquires the view connection of the view networked server subordinate
The log-on message of network termination, version querying order；
The log-on message and the version querying order are encrypted, encrypted query information is obtained；
The encrypted query information is sent to industrial personal computer；
The industrial personal computer logs in the view networked terminals using the log-on message and sends the version querying order
Include: depending on the step of networked terminals to described
The encrypted query information is decrypted in industrial personal computer, obtains the log-on message and the version querying order；
Industrial personal computer logs in the view networked terminals using the log-on message；
The version querying order is sent to the view and networked eventually by industrial personal computer when logging in view networked terminals success
End.
Optionally, the industrial personal computer, which receives, described executes the version letter that the version querying order inquires depending on networked terminals
It ceases and includes: the step of being sent to NM server
Industrial personal computer, which receives, described executes the version information that the version querying order inquires depending on networked terminals；
Industrial personal computer encrypts the version information, obtains encryption version information；
The encryption version information is sent to NM server by industrial personal computer；
The step of version information is sent to the client by the NM server include:
The encryption version information is decrypted in NM server, obtains the version information, and is sent to the visitor
Family end.
Optionally, further includes:
Source version information of the NM server inquiry to the view networked terminals of the view networked server subordinate；
NM server compares the version information and the source version information that industrial personal computer returns, and obtains version prompt information.
The embodiment of the invention also discloses a kind of inquiry unit of version information, client, NM server are located at IP network
In, industrial personal computer, view networked server and view networked terminals are located in view networking；
The NM server includes terminal information inquiry module, second edition information sending module, the industrial personal computer packet
Include terminal cascade judgment module, terminal logs in enquiry module, first version information sending module；
Terminal information inquiry module inquires the view networked server category for the inquiry request according to the client
Under described depending on the log-on message of networked terminals, version querying order and be sent to industrial personal computer；
Terminal cascades judgment module, for judging described whether be connected under the view networked server depending on networked terminals；
If so, terminal is called to log in enquiry module；
Terminal logs in enquiry module, for using log-on message login described depending on networked terminals and looking into the version
It askes order and is sent to the view networked terminals；
First version information sending module described execute the version querying order depending on networked terminals and inquires for receiving
Version information and be sent to NM server；
Second edition information sending module, for the version information to be sent to the client.
Optionally, the terminal information inquiry module includes:
ID extracting sub-module extracts the view the Internet services for NM server from the inquiry request of the client
The ID of the ID of device, the view networked terminals；
Data base querying submodule, the work of the ID subordinate for inquiring the view networked server in preset database
First IP address of control machine, and, corresponding second IP address of ID, the user name, password of the view networked terminals；
End message sending submodule, for by view corresponding second IP address of ID of networked terminals, user name, close
Code and version querying order are sent to industrial personal computer belonging to first IP address.
Optionally, the terminal login enquiry module includes:
User name sending submodule, for the user name to be sent to the networking of view belonging to second IP address eventually
End；
Response message receiving submodule, the response message returned for receiving the view networked terminals；
Password sending submodule, for the password to be sent to view networked terminals belonging to second IP address；
Logging state information receiving submodule, the logging state information returned for receiving the view networked terminals；
Version querying order sending submodule, for the logging state information be login successfully when, by the version
Querying command is sent to the view networked terminals.
Optionally, the terminal information inquiry module includes:
Information inquires submodule, and the inquiry request for NM server according to the client inquires the view networking
The log-on message of the view networked terminals of server subordinate, version querying order；
End message encrypts submodule, for encrypting the log-on message and the version querying order, obtains
Encrypted query information；
Encrypted query information sending submodule, for the encrypted query information to be sent to industrial personal computer；
The terminal logs in enquiry module
Encrypted query information decrypts submodule, the encrypted query information is decrypted for industrial personal computer, described in acquisition
Log-on message and the version querying order；
Log-on message logs in submodule, logs in the view networked terminals using the log-on message for industrial personal computer；
Version querying submodule orders the version querying for industrial personal computer when logging in view networked terminals success
Order is sent to the view networked terminals.
Optionally, the first version information sending module includes:
Version information receiving submodule described executes what the version querying order inquired depending on networked terminals for receiving
Version information；
Version information encrypts submodule, encrypts the version information for industrial personal computer, obtains encryption version information；
Encryption version information sending submodule, for the encryption version information to be sent to NM server；
The second edition information sending module includes:
Sending submodule is decrypted, the encryption version information is decrypted for NM server, obtains the version
Information, and it is sent to the client.
Optionally, the NM server further include:
Source version information enquiry module, for inquiring the source of the view networked terminals to the view networked server subordinate
Version information；
Version information contrast module obtains version for comparing the version information and the source version information of industrial personal computer return
This prompt information.
The embodiment of the present invention includes following advantages:
In the embodiment of the present invention, client, NM server are located in IP network, industrial personal computer, view networked server and view connection
Network termination is located in view networking, inquiry request of the NM server according to client, the view connection of inquiry view networked server subordinate
The log-on message of network termination, version querying order are simultaneously sent to industrial personal computer, and industrial personal computer is determining that view networked terminals are connected to view and join
When under network server, is logged in using log-on message depending on networked terminals and version querying order is sent to view networked terminals execution,
By the version information inquired and it is sent to NM server, returns again to client, realizes to regard in IP network remote inquiry and network
In terminal version information, remove to be viewed locally the version information of view networked terminals manually without user, improve the letter of operation
Just property.
Detailed description of the invention
Fig. 1 is a kind of networking schematic diagram of view networking of the invention；
Fig. 2 is a kind of hardware structural diagram of node server of the invention；
Fig. 3 is a kind of hardware structural diagram of access switch of the invention；
Fig. 4 is the hardware structural diagram that a kind of Ethernet association of the invention turns gateway；
Fig. 5 is a kind of step flow chart of the querying method embodiment of version information of the invention；
Fig. 6 is a kind of schematic diagram of network architecture of the invention；
Fig. 7 is the step flow chart of the querying method embodiment of another version information of the invention；
Fig. 8 is a kind of structural block diagram of the inquiry unit embodiment of version information of the invention；
Fig. 9 is the structural block diagram of the inquiry unit embodiment of another version information of the invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
It is the important milestone of network Development depending on networking, is a real-time network, can be realized HD video real-time Transmission,
Push numerous Internet applications to HD video, high definition is face-to-face.
Real-time high-definition video switching technology is used depending on networking, it can be such as high in a network platform by required service
Clear video conference, Intellectualized monitoring analysis, emergency command, digital broadcast television, delay TV, the Web-based instruction, shows video monitoring
Field live streaming, VOD program request, TV Mail, individual character records (PVR), Intranet (manages) channel by oneself, intelligent video Broadcast Control, information publication
All be incorporated into a system platform etc. services such as tens of kinds of videos, voice, picture, text, communication, data, by TV or
Computer realizes that high-definition quality video plays.
Embodiment in order to enable those skilled in the art to better understand the present invention is introduced to depending on networking below:
Depending on networking, applied portion of techniques is as described below:
Network technology (Network Technology)
Traditional ethernet (Ethernet) is improved depending on the network technology innovation networked, with potential huge on network
Video flow.(Circuit is exchanged different from simple network packet packet switch (Packet Switching) or lattice network
Switching), Streaming demand is met using Packet Switching depending on networking technology.Has grouping depending on networking technology
Flexible, the simple and low price of exchange, is provided simultaneously with the quality and safety assurance of circuit switching, it is virtually electric to realize the whole network switch type
The seamless connection of road and data format.
Switching technology (Switching Technology)
Two advantages of asynchronous and packet switch that Ethernet is used depending on networking eliminate Ethernet under the premise of complete compatible and lack
It falls into, has the end-to-end seamless connection of the whole network, direct user terminal, directly carrying IP data packet.User data is in network-wide basis
It is not required to any format conversion.It is the more advanced form of Ethernet depending on networking, is a real-time exchange platform, can be realized at present mutually
The whole network large-scale high-definition realtime video transmission that networking cannot achieve pushes numerous network video applications to high Qinghua, unitizes.
Server technology (Server Technology)
It is different from traditional server, its Streaming Media depending on the server technology in networking and unified video platform
Transmission be built upon it is connection-oriented on the basis of, data-handling capacity is unrelated with flow, communication time, single network layer energy
Enough transmitted comprising signaling and data.For voice and video business, handled depending on networking and unified video platform Streaming Media
Complexity many simpler than data processing, efficiency substantially increase hundred times or more than traditional server.
Reservoir technology (Storage Technology)
The ultrahigh speed reservoir technology of unified video platform in order to adapt to the media content of vast capacity and super-flow and
Using state-of-the-art real time operating system, the programme information in server instruction is mapped to specific hard drive space, media
Content is no longer pass through server, and moment is directly delivered to user terminal, and user waits typical time less than 0.2 second.It optimizes
Sector distribution greatly reduces the mechanical movement of hard disc magnetic head tracking, and resource consumption only accounts for the 20% of the internet ad eundem IP, but
The concurrent flow greater than 3 times of traditional disk array is generated, overall efficiency promotes 10 times or more.
Network security technology (Network Security Technology)
Depending on the structural design networked by servicing independent licence system, equipment and the modes such as user data is completely isolated every time
The network security problem that puzzlement internet has thoroughly been eradicated from structure, does not need antivirus applet, firewall generally, has prevented black
The attack of visitor and virus, structural carefree secure network is provided for user.
It services innovative technology (Service Innovation Technology)
Business and transmission are fused together by unified video platform, whether single user, private user or a net
The sum total of network is all only primary automatic connection.User terminal, set-top box or PC are attached directly to unified video platform, obtain rich
The multimedia video service of rich colorful various forms.Unified video platform is traditional to substitute with table schema using " menu type "
Complicated applications programming, considerably less code, which can be used, can be realized complicated application, realize the new business innovation of " endless ".
Networking depending on networking is as described below:
It is a kind of central controlled network structure depending on networking, which can be Tree Network, Star network, ring network etc. class
Type, but centralized control node is needed to control whole network in network on this basis.
As shown in Figure 1, being divided into access net and Metropolitan Area Network (MAN) two parts depending on networking.
The equipment of access mesh portions can be mainly divided into 3 classes: node server, access switch, terminal (including various machines
Top box, encoding board, memory etc.).Node server is connected with access switch, and access switch can be with multiple terminal phases
Even, and it can connect Ethernet.
Wherein, node server is the node that centralized control functions are played in access net, can control access switch and terminal.
Node server can directly be connected with access switch, can also directly be connected with terminal.
Similar, the equipment of metropolitan area mesh portions can also be divided into 3 classes: metropolitan area server, node switch, node serve
Device.Metropolitan area server is connected with node switch, and node switch can be connected with multiple node servers.
Wherein, node server is the node server for accessing mesh portions, i.e. node server had both belonged to access wet end
Point, and belong to metropolitan area mesh portions.
Metropolitan area server is the node that centralized control functions are played in Metropolitan Area Network (MAN), can control node switch and node serve
Device.Metropolitan area server can be directly connected to node switch, can also be directly connected to node server.
It can be seen that be entirely a kind of central controlled network structure of layering depending on networking network, and node server and metropolitan area
The network controlled under server can be the various structures such as tree-shaped, star-like, cyclic annular.
Visually claim, access mesh portions can form unified video platform (part in virtual coil), and multiple unified videos are flat
Platform can form view networking；Each unified video platform can be interconnected by metropolitan area and wide area depending on networking.
Classify depending on networked devices
1.1 embodiment of the present invention can be mainly divided into 3 classes: server depending on the equipment in networking, interchanger (including ether
Net gateway), terminal (including various set-top boxes, encoding board, memory etc.).Depending on networking can be divided on the whole Metropolitan Area Network (MAN) (or
National net, World Wide Web etc.) and access net.
1.2 equipment for wherein accessing mesh portions can be mainly divided into 3 classes: node server, access switch (including ether
Net gateway), terminal (including various set-top boxes, encoding board, memory etc.).
The specific hardware structure of each access network equipment are as follows:
Node server:
As shown in Fig. 2, mainly including Network Interface Module 201, switching engine module 202, CPU module 203, disk array
Module 204；
Wherein, Network Interface Module 201, the Bao Jun that CPU module 203, disk array module 204 are come in enter switching engine
Module 202；Switching engine module 202 look into the operation of address table 205 to the packet come in, to obtain the navigation information of packet；
And the packet is stored according to the navigation information of packet the queue of corresponding pack buffer 206；If the queue of pack buffer 206 is close
It is full, then it abandons；All pack buffer queues of 202 poll of switching engine mould, are forwarded: 1) port if meeting the following conditions
It is less than to send caching；2) the queue package counting facility is greater than zero.Disk array module 204 mainly realizes the control to hard disk, including
The operation such as initialization, read-write to hard disk；CPU module 203 is mainly responsible between access switch, terminal (not shown)
Protocol processes, to address table 205 (including descending protocol packet address table, uplink protocol package address table, data packet addressed table)
Configuration, and, the configuration to disk array module 204.
Access switch:
As shown in figure 3, mainly including Network Interface Module (downstream network interface module 301, uplink network interface module
302), switching engine module 303 and CPU module 304；
Wherein, the packet (upstream data) that downstream network interface module 301 is come in enters packet detection module 305；Packet detection mould
Whether mesh way address (DA), source address (SA), type of data packet and the packet length of the detection packet of block 305 meet the requirements, if met,
It then distributes corresponding flow identifier (stream-id), and enters switching engine module 303, otherwise abandon；Uplink network interface mould
The packet (downlink data) that block 302 is come in enters switching engine module 303；The data packet that CPU module 204 is come in enters switching engine
Module 303；Switching engine module 303 look into the operation of address table 306 to the packet come in, to obtain the navigation information of packet；
If the packet into switching engine module 303 is that downstream network interface is gone toward uplink network interface, in conjunction with flow identifier
(stream-id) packet is stored in the queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full,
It abandons；If the packet into switching engine module 303 is not that downstream network interface is gone toward uplink network interface, according to packet
Navigation information is stored in the data packet queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full,
Then abandon.
All pack buffer queues of 303 poll of switching engine module, are divided to two kinds of situations in embodiments of the present invention:
If the queue is that downstream network interface is gone toward uplink network interface, meets the following conditions and be forwarded: 1)
It is less than that the port sends caching；2) the queue package counting facility is greater than zero；3) token that rate control module generates is obtained；
If the queue is not that downstream network interface is gone toward uplink network interface, meets the following conditions and is forwarded:
1) it is less than to send caching for the port；2) the queue package counting facility is greater than zero.
Rate control module 208 is configured by CPU module 204, to all downlink networks in programmable interval
Interface generates token toward the pack buffer queue that uplink network interface is gone, to control the code rate of forwarded upstream.
CPU module 304 is mainly responsible for the protocol processes between node server, the configuration to address table 306, and,
Configuration to rate control module 308.
Ethernet association turns gateway:
As shown in figure 4, mainly including Network Interface Module (downstream network interface module 401, uplink network interface module
402), switching engine module 403, CPU module 404, packet detection module 405, rate control module 408, address table 406, Bao Huan
Storage 407 and MAC adding module 409, MAC removing module 410.
Wherein, the data packet that downstream network interface module 401 is come in enters packet detection module 405；Packet detection module 405 is examined
Ethernet mac DA, ethernet mac SA, Ethernet length or frame type, the view networking mesh way address of measured data packet
DA, whether meet the requirements depending on networking source address SA, depending on networking data Packet type and packet length, corresponding stream is distributed if meeting
Identifier (stream-id)；Then, MAC DA, MAC SA, length or frame type are subtracted by MAC removing module 410
(2byte), and enter corresponding receive and cache, otherwise abandon；
Downstream network interface module 401 detects the transmission caching of the port, according to the view of packet networking mesh if there is Bao Ze
Address D A knows the ethernet mac DA of corresponding terminal, adds the ethernet mac DA of terminal, Ethernet assists the MAC for turning gateway
SA, Ethernet length or frame type, and send.
The function that Ethernet association turns other modules in gateway is similar with access switch.
Terminal:
It mainly include Network Interface Module, Service Processing Module and CPU module；For example, set-top box mainly connects including network
Mouth mold block, video/audio encoding and decoding engine modules, CPU module；Encoding board mainly includes Network Interface Module, video encoding engine
Module, CPU module；Memory mainly includes Network Interface Module, CPU module and disk array module.
The equipment of 1.3 metropolitan area mesh portions can be mainly divided into 2 classes: node server, node switch, metropolitan area server.
Wherein, node switch mainly includes Network Interface Module, switching engine module and CPU module；Metropolitan area server mainly includes
Network Interface Module, switching engine module and CPU module are constituted.
2, networking data package definition is regarded
2.1 access network data package definitions
Access net data packet mainly include following sections: destination address (DA), source address (SA), reserve bytes,
payload(PDU)、CRC。
As shown in the table, the data packet for accessing net mainly includes following sections:
| DA | SA | Reserved | Payload | CRC |
Wherein:
Destination address (DA) is made of 8 bytes (byte), and first character section indicates type (such as the various associations of data packet
Discuss packet, multicast packet, unicast packet etc.), be up to 256 kinds of possibility, the second byte to the 6th byte is metropolitan area net address,
Seven, the 8th bytes are access net address；
Source address (SA) is also to be made of 8 bytes (byte), is defined identical as destination address (DA)；
Reserve bytes are made of 2 bytes；
The part payload has different length according to the type of different datagrams, is if it is various protocol packages
64 bytes are 32+1024=1056 bytes if it is single group unicast packets words, are not restricted to above 2 kinds certainly；
CRC is made of 4 bytes, and calculation method follows the Ethernet CRC algorithm of standard.
2.2 Metropolitan Area Network (MAN) packet definitions
The topology of Metropolitan Area Network (MAN) is pattern, may there is 2 kinds, connection even of more than two kinds, i.e. node switching between two equipment
It can all can exceed that 2 kinds between machine and node server, node switch and node switch, node switch and node server
Connection.But the metropolitan area net address of metropolitan area network equipment is uniquely, to close to accurately describe the connection between metropolitan area network equipment
System, introduces parameter in embodiments of the present invention: label, uniquely to describe a metropolitan area network equipment.
(Multi-Protocol Label Switch, multiprotocol label are handed over by the definition of label and MPLS in this specification
Change) label definition it is similar, it is assumed that between equipment A and equipment B there are two connection, then data packet from equipment A to equipment B just
There are 2 labels, data packet also there are 2 labels from equipment B to equipment A.Label is divided into label, outgoing label, it is assumed that data packet enters
The label (entering label) of equipment A is 0x0000, and the label (outgoing label) when this data packet leaves equipment A may reform into
0x0001.The networking process of Metropolitan Area Network (MAN) is to enter network process under centralized control, also means that address distribution, the label of Metropolitan Area Network (MAN)
Distribution be all to be dominated by metropolitan area server, node switch, node server be all passively execute, this point with
The label distribution of MPLS is different, and the distribution of the label of MPLS is the result that interchanger, server are negotiated mutually.
As shown in the table, the data packet of Metropolitan Area Network (MAN) mainly includes following sections:
| DA | SA | Reserved | Label | Payload | CRC |
That is destination address (DA), source address (SA), reserve bytes (Reserved), label, payload (PDU), CRC.Its
In, the format of label, which can refer to, such as gives a definition: label is 32bit, wherein high 16bit retains, only with low 16bit, its position
Set is between the reserve bytes and payload of data packet.
Based on the above-mentioned characteristic of view networking, one of the core concepts of the embodiments of the present invention is proposed, it then follows regard the association of networking
View is regarded the version information of networked terminals by the client of IP network by NM server, industrial personal computer remote inquiry.
Referring to Fig. 5, a kind of step flow chart of the querying method embodiment of version information of the invention is shown, specifically may be used
To include the following steps:
Step 501, inquiry request of the NM server according to the client inquires the view networked server subordinate's
It is described depending on the log-on message of networked terminals, version querying order and to be sent to industrial personal computer.
As shown in fig. 6, client 611, NM server 612 are located in IP network 610, industrial personal computer 621, view networked server
622 are located in view networking 620 with view networked terminals 623.
In the concrete realization, user logs in client in IP network, and view can be managed in IP network by NM server
The view networked terminals of networked server subordinate.
Client can send the view networking of inquiry view networked server subordinate to NM server according to the operation of user
The version querying of the version information of terminal is requested.
NM server can be requested according to the version querying, inquire the view networked terminals of view networked server subordinate
Log-on message, and, version querying order (such as CMD order), by TCP (Transmission Control Protocol,
Transmission control protocol) agreement is sent to industrial personal computer.
In one embodiment of the invention, step 501 may include following sub-step:
Sub-step S11, NM server extracted from the inquiry request of the client it is described view networked server ID,
The ID of the view networked terminals.
Sub-step S12 inquires the first of the industrial personal computer of the ID subordinate of the view networked server in preset database
IP address, and, corresponding second IP address of ID, the user name, password of the view networked terminals.
Sub-step S13, by corresponding second IP address of ID, user name, password and the version querying of the view networked terminals
Order is sent to industrial personal computer belonging to first IP address.
Using the embodiment of the present invention, different view networked servers can be stored in the database in advance in NM server
Information, including ID, first IP address of industrial personal computer etc., and, store view networked server subordinate regard networked terminals letter
Breath, including ID, the second IP address for regarding networked terminals, user name, password etc..
Client is when sending inquiry request, to regard the ID characterization view networked server of networked server, eventually with view networking
The ID characterization view networked terminals at end.
NM server extracts the ID of the view networked server from inquiry request and regards the ID of networked terminals, at this
Corresponding first IP address of ID of the view networked server is searched in database, and, the ID for searching the view networked terminals is corresponding
The second IP address, user name, password as log-on message, in conjunction with version querying order, be sent to the first IP address institute together
The industrial personal computer of category.
In another embodiment of the present invention, step 501 may include following sub-step:
Sub-step S21, inquiry request of the NM server according to the client inquire the view networked server subordinate
The log-on messages of the view networked terminals, version querying order.
Sub-step S22 encrypts the log-on message and the version querying order, obtains encrypted query information.
The encrypted query information is sent to industrial personal computer by sub-step S23.
In embodiments of the present invention, due to the Transmission Control Protocol that the communication between NM server and industrial personal computer is using IP network,
Safety is poor, and therefore, in order to improve the safety communicated between NM server and industrial personal computer, NM server can be to stepping on
Record information, the data such as version querying order using AES (Advanced Encryption Standard, it is advanced in cryptography
Encryption standard) modes such as algorithm are encrypted, then the encrypted query information after encryption is sent to industrial personal computer.
Step 502, industrial personal computer judges described whether be connected under the view networked server depending on networked terminals；If so,
Execute step 503.
In embodiments of the present invention, industrial personal computer can judge whether grade is associated in depending on connection terminal by the V2V agreement of view networking
Depending under connection server.
Step 503, industrial personal computer using the log-on message logs in the view networked terminals and by the version querying order
It is sent to the view networked terminals.
If being associated in depending on networked terminals grade in the case where regarding networked server, industrial personal computer can (remote terminal be assisted by Telnet
View) protocol entry regards networked terminals, and transmits version querying order and be sent to view networked terminals execution.
In one embodiment of the invention, step 503 may include following sub-step:
The user name is sent to view networked terminals belonging to second IP address by sub-step S31, industrial personal computer.
Sub-step S32, industrial personal computer receive the response message that the view networked terminals return.
The password is sent to view networked terminals belonging to second IP address by sub-step S33, industrial personal computer.
Sub-step S34, industrial personal computer receive the logging state information that the view networked terminals return.
Sub-step S35, industrial personal computer send the version querying order when the logging state information is to login successfully
To the view networked terminals.
In embodiments of the present invention, industrial personal computer establishes TCP connection by the second IP address and depending on networked terminals, by user name
Long-range view networked terminals are transmitted to NVT (Net Virtual Terminal) format with password, can be returned depending on networked terminals
Return logging state information.
If logging state information is to login successfully, version querying order can be transmitted to NVT format long-range
Depending on being executed in networked terminals.
If logging state information is login failure, terminate the version information of inquiry view networked terminals, by login failure
Message return to NM server, NM server returns to client.
In one embodiment of the invention, step 503 may include following sub-step:
The encrypted query information is decrypted in sub-step S41, industrial personal computer, obtains the log-on message and the version
Querying command.
Sub-step S42, industrial personal computer log in the view networked terminals using the log-on message.
The version querying order is sent to institute when logging in view networked terminals success by sub-step S43, industrial personal computer
State view networked terminals.
In the embodiment of the present invention, if NM server encrypts log-on message, version querying order, industrial personal computer
Receive encryption log-on message, version querying order (i.e. encrypted query information), then can be with corresponding manner of decryption (such as
Aes algorithm) it is decrypted, and networked terminals are regarded using the log-on message Telnet after decryption, version querying is ordered
Order is sent to view networked terminals and executes.
Step 504, industrial personal computer, which receives, described executes the version information that the version querying order inquires depending on networked terminals
And it is sent to NM server.
In the concrete realization, the version querying order is executed depending on networked terminals, inquires version information, and NVT format
Data return to industrial personal computer, industrial personal computer is translated into the local format received, including version querying order echo and version
The implementing result (i.e. version information) of querying command, and NM server is returned to by Transmission Control Protocol.
In addition, industrial personal computer can carry out cancelling connection depending on networked terminals to long-range, which is that one TCP of revocation connects
It connects.
In one embodiment of the invention, step 504 may include following sub-step:
Sub-step S51, industrial personal computer, which receives, described executes the version letter that the version querying order inquires depending on networked terminals
Breath.
Sub-step S52, industrial personal computer encrypt the version information, obtain encryption version information.
The encryption version information is sent to NM server by sub-step S53, industrial personal computer.
In embodiments of the present invention, due to the Transmission Control Protocol that the communication between NM server and industrial personal computer is using IP network,
Safety is poor, and therefore, in order to improve the safety communicated between NM server and industrial personal computer, industrial personal computer can believe version
The data such as breath are encrypted using modes such as aes algorithms, then the encryption version information after encryption is sent to NM server.
Step 505, the version information is sent to the client by NM server.
In one embodiment of the invention, step 505 may include following sub-step:
The encryption version information is decrypted in sub-step S61, NM server, obtains the version information, concurrently
It send to the client.
In the embodiment of the present invention, if industrial personal computer encrypts version information, industrial personal computer is in the version for receiving encryption
This information (i.e. encryption version information) can then be decrypted it with corresponding manner of decryption (such as aes algorithm), and will decryption
Version information later is sent to client.
In the embodiment of the present invention, client, NM server are located in IP network, industrial personal computer, view networked server and view connection
Network termination is located in view networking, inquiry request of the NM server according to client, the view connection of inquiry view networked server subordinate
The log-on message of network termination, version querying order are simultaneously sent to industrial personal computer, and industrial personal computer is determining that view networked terminals are connected to view and join
When under network server, is logged in using log-on message depending on networked terminals and version querying order is sent to view networked terminals execution,
By the version information inquired and it is sent to NM server, returns again to client, realizes to regard in IP network remote inquiry and network
In terminal version information, remove to be viewed locally the version information of view networked terminals manually without user, improve the letter of operation
Just property.
Referring to Fig. 7, the step flow chart of the querying method embodiment of another version information of the invention, client are shown
End, NM server are located in IP network, and industrial personal computer, view networked server and view networked terminals are located in view networking, the method
It can specifically include following steps:
Step 701, inquiry request of the NM server according to the client inquires the view networked server subordinate's
It is described depending on the log-on message of networked terminals, version querying order and to be sent to industrial personal computer.
Step 702, industrial personal computer judges described whether be connected under the view networked server depending on networked terminals；If so,
Execute step 703.
Step 703, industrial personal computer using the log-on message logs in the view networked terminals and by the version querying order
It is sent to the view networked terminals.
Step 704, industrial personal computer, which receives, described executes the version information that the version querying order inquires depending on networked terminals
And it is sent to NM server.
Step 705, the version information is sent to the client by NM server.
Step 706, source version of the NM server inquiry to the view networked terminals of the view networked server subordinate
Information.
Step 707, version information and the source version information that NM server comparison industrial personal computer returns obtain version and mention
Show information.
In embodiments of the present invention, NM server can will be stored depending on the version information of networked terminals to local data
In library.
In addition, the database in NM server is also stored with the source version information of the view networked terminals, the source version
Information can be what user filled in manually, also to be in NM server control depending on storing when networked terminals upgrading.
Industrial personal computer return version information be view the actual version information of networked terminals, source version information therewith there may be
Certain error.
By comparing actual version information and source version information, then can decide whether to need upgrading, upgrading before
Successfully etc. whether versions prompt information, user can determine subsequent operation according to the version prompt information.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
Referring to Fig. 8, a kind of structural block diagram of the inquiry unit embodiment of version information of the invention is shown, which can
To be applied in view networking, client 811, NM server 812 are located in IP network, industrial personal computer 821, view networked server 822
It is located in view networking with view networked terminals 823；
The NM server 812 includes terminal information inquiry module 8121, second edition information sending module 8122, institute
Stating industrial personal computer 821 includes terminal cascade judgment module 8211, terminal login enquiry module 8212, first version information sending module
8213；
Terminal information inquiry module 8121 inquires the view the Internet services for the inquiry request according to the client
The described of device subordinate depending on the log-on message of networked terminals, version querying order and is sent to industrial personal computer；
Terminal cascades judgment module 8211, for judging described whether be connected to the view networked server depending on networked terminals
Under；If so, terminal is called to log in enquiry module 8212；
Terminal logs in enquiry module 8212, for logging in the view networked terminals using the log-on message and by the version
This querying command is sent to the view networked terminals；
First version information sending module 8213 described execute the version querying order depending on networked terminals and looks into for receiving
The version information ask simultaneously is sent to NM server；
Second edition information sending module 8122, for the version information to be sent to the client.
In one embodiment of the invention, the terminal information inquiry module 8121 includes:
ID extracting sub-module extracts the view the Internet services for NM server from the inquiry request of the client
The ID of the ID of device, the view networked terminals；
Data base querying submodule, the work of the ID subordinate for inquiring the view networked server in preset database
First IP address of control machine, and, corresponding second IP address of ID, the user name, password of the view networked terminals；
End message sending submodule, for by view corresponding second IP address of ID of networked terminals, user name, close
Code and version querying order are sent to industrial personal computer belonging to first IP address.
In one embodiment of the invention, the terminal login enquiry module 8212 includes:
User name sending submodule, for the user name to be sent to the networking of view belonging to second IP address eventually
End；
Response message receiving submodule, the response message returned for receiving the view networked terminals；
Password sending submodule, for the password to be sent to view networked terminals belonging to second IP address；
Logging state information receiving submodule, the logging state information returned for receiving the view networked terminals；
Version querying order sending submodule, for the logging state information be login successfully when, by the version
Querying command is sent to the view networked terminals.
In one embodiment of the invention, the terminal information inquiry module 8121 includes:
Information inquires submodule, and the inquiry request for NM server according to the client inquires the view networking
The log-on message of the view networked terminals of server subordinate, version querying order；
End message encrypts submodule, for encrypting the log-on message and the version querying order, obtains
Encrypted query information；
Encrypted query information sending submodule, for the encrypted query information to be sent to industrial personal computer；
Correspondingly, the terminal login enquiry module 8212 includes:
Encrypted query information decrypts submodule, the encrypted query information is decrypted for industrial personal computer, described in acquisition
Log-on message and the version querying order；
Log-on message logs in submodule, logs in the view networked terminals using the log-on message for industrial personal computer；
Version querying submodule orders the version querying for industrial personal computer when logging in view networked terminals success
Order is sent to the view networked terminals.
In one embodiment of the invention, the first version information sending module 8122 includes:
Version information receiving submodule described executes what the version querying order inquired depending on networked terminals for receiving
Version information；
Version information encrypts submodule, encrypts the version information for industrial personal computer, obtains encryption version information；
Encryption version information sending submodule, for the encryption version information to be sent to NM server；
Correspondingly, the second edition information sending module 8213 includes:
Sending submodule is decrypted, the encryption version information is decrypted for NM server, obtains the version
Information, and it is sent to the client.
Referring to Fig. 9, the structural block diagram of the inquiry unit embodiment of another version information of the invention, the device are shown
It can be applied in view networking, client 911, NM server 912 are located in IP network, industrial personal computer 921, view networked server
922 are located in view networking with view networked terminals 923；
The NM server 912 includes terminal information inquiry module 9121, second edition information sending module 9122, source
Version information enquiry module 9123, version information contrast module 9124, the industrial personal computer 921 include that terminal cascades judgment module
9211, terminal logs in enquiry module 9212, first version information sending module 9213；
Terminal information inquiry module 9121 inquires the view the Internet services for the inquiry request according to the client
The described of device subordinate depending on the log-on message of networked terminals, version querying order and is sent to industrial personal computer；
Terminal cascades judgment module 9211, for judging described whether be connected to the view networked server depending on networked terminals
Under；If so, terminal is called to log in enquiry module 9212；
Terminal logs in enquiry module 9212, for logging in the view networked terminals using the log-on message and by the version
This querying command is sent to the view networked terminals；
First version information sending module 9213 described execute the version querying order depending on networked terminals and looks into for receiving
The version information ask simultaneously is sent to NM server；
Second edition information sending module 9122, for the version information to be sent to the client；
Source version information enquiry module 9123, for inquiring the view networked terminals to the view networked server subordinate
Source version information；
Version information contrast module 9123 is obtained for comparing the version information and the source version information of industrial personal computer return
Obtain version prompt information.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
Above to a kind of querying method and a kind of inquiry unit of version information of version information provided by the present invention, into
It has gone and has been discussed in detail, used herein a specific example illustrates the principle and implementation of the invention, the above implementation
The explanation of example is merely used to help understand method and its core concept of the invention；Meanwhile for the general technology people of this field
Member, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion this explanation
Book content should not be construed as limiting the invention.
Claims (10)
1. a kind of querying method of version information, which is characterized in that client, NM server are located in IP network, industrial personal computer, view
Networked server and view networked terminals are located in view networking, which comprises
Inquiry request of the NM server according to the client, the view for inquiring the view networked server subordinate are networked eventually
The log-on message at end, version querying order are simultaneously sent to industrial personal computer；
Industrial personal computer judges described whether be connected under the view networked server depending on networked terminals；If so, industrial personal computer uses institute
It states log-on message and logs in and described be sent to the view networked terminals depending on networked terminals and by the version querying order；
Industrial personal computer, which receives, described to be executed version information that the version querying order inquires depending on networked terminals and is sent to network management
Server；
The version information is sent to the client by NM server.
2. the method according to claim 1, wherein the NM server is asked according to the inquiry of the client
It asks, inquires described depending on the log-on message of networked terminals, version querying order and being sent to work depending on the described of networked server subordinate
The step of control machine includes:
NM server extracts ID, the view networked terminals of the view networked server from the inquiry request of the client
ID；
The first IP address of the industrial personal computer of the ID subordinate of the view networked server is inquired in preset database, and, institute
State corresponding second IP address of ID, the user name, password of view networked terminals；
Corresponding second IP address of the ID depending on networked terminals, user name, password and version querying order are sent to described
Industrial personal computer belonging to first IP address.
3. according to the method described in claim 2, it is characterized in that, the industrial personal computer logs in the view using the log-on message
The version querying order is simultaneously sent to and described includes: depending on the step of networked terminals by networked terminals
The user name is sent to view networked terminals belonging to second IP address by industrial personal computer；
Industrial personal computer receives the response message that the view networked terminals return；
The password is sent to view networked terminals belonging to second IP address by industrial personal computer；
Industrial personal computer receives the logging state information that the view networked terminals return；
The version querying order is sent to the view and networked eventually by industrial personal computer when the logging state information is to login successfully
End.
4. method according to claim 1 or 2 or 3, which is characterized in that the NM server is according to the client
Inquiry request, log-on message, the version querying order for inquiring the view networked terminals of the view networked server subordinate are concurrent
It send to the step of industrial personal computer and includes:
Inquiry request of the NM server according to the client, the view for inquiring the view networked server subordinate are networked eventually
The log-on message at end, version querying order；
The log-on message and the version querying order are encrypted, encrypted query information is obtained；
The encrypted query information is sent to industrial personal computer；
The industrial personal computer is sent to institute depending on networked terminals and by the version querying order using log-on message login is described
It states and includes: depending on the step of networked terminals
The encrypted query information is decrypted in industrial personal computer, obtains the log-on message and the version querying order；
Industrial personal computer logs in the view networked terminals using the log-on message；
The version querying order is sent to the view networked terminals when logging in view networked terminals success by industrial personal computer.
5. method according to claim 1 or 2 or 3, which is characterized in that the industrial personal computer reception is described to hold depending on networked terminals
Version information that the row version querying order inquires and the step of being sent to NM server includes:
Industrial personal computer, which receives, described executes the version information that the version querying order inquires depending on networked terminals；
Industrial personal computer encrypts the version information, obtains encryption version information；
The encryption version information is sent to NM server by industrial personal computer；
The step of version information is sent to the client by the NM server include:
The encryption version information is decrypted in NM server, obtains the version information, and is sent to the client.
6. method according to claim 1 or 2 or 3, which is characterized in that further include:
Source version information of the NM server inquiry to the view networked terminals of the view networked server subordinate；
NM server compares the version information and the source version information that industrial personal computer returns, and obtains version prompt information.
7. a kind of inquiry unit of version information, which is characterized in that client, NM server are located in IP network, industrial personal computer, view
Networked server and view networked terminals are located in view networking；
The NM server includes terminal information inquiry module, second edition information sending module, and the industrial personal computer includes eventually
End cascade judgment module, terminal log in enquiry module, first version information sending module；
Terminal information inquiry module inquires the view networked server subordinate's for the inquiry request according to the client
It is described depending on the log-on message of networked terminals, version querying order and to be sent to industrial personal computer；
Terminal cascades judgment module, for judging described whether be connected under the view networked server depending on networked terminals；If so,
Terminal is then called to log in enquiry module；
Terminal logs in enquiry module, for using log-on message login described depending on networked terminals and ordering the version querying
Order is sent to the view networked terminals；
First version information sending module described executes the version that the version querying order inquires depending on networked terminals for receiving
This information is simultaneously sent to NM server；
Second edition information sending module, for the version information to be sent to the client.
8. device according to claim 7, which is characterized in that the terminal information inquiry module includes:
ID extracting sub-module extracts the view networked server for NM server from the inquiry request of the client
The ID of ID, the view networked terminals；
Data base querying submodule, the industrial personal computer of the ID subordinate for inquiring the view networked server in preset database
The first IP address, and, it is described view networked terminals corresponding second IP address of ID, user name, password；
End message sending submodule, for by view corresponding second IP address of ID of networked terminals, user name, password and
Version querying order is sent to industrial personal computer belonging to first IP address.
9. device according to claim 8, which is characterized in that the terminal logs in enquiry module and includes:
User name sending submodule, for the user name to be sent to view networked terminals belonging to second IP address；
Response message receiving submodule, the response message returned for receiving the view networked terminals；
Password sending submodule, for the password to be sent to view networked terminals belonging to second IP address；
Logging state information receiving submodule, the logging state information returned for receiving the view networked terminals；
Version querying order sending submodule, for the logging state information be login successfully when, by the version querying
Order is sent to the view networked terminals.
10. according to device described in claim 7 or 8 or 9, which is characterized in that the terminal information inquiry module includes:
Information inquires submodule, and the inquiry request for NM server according to the client inquires the view the Internet services
The log-on message of the view networked terminals of device subordinate, version querying order；
End message encryption submodule is encrypted for encrypting the log-on message and the version querying order
Query information；
Encrypted query information sending submodule, for the encrypted query information to be sent to industrial personal computer；
The terminal logs in enquiry module
Encrypted query information decrypts submodule, is decrypted for industrial personal computer to the encrypted query information, obtains the login
Information and the version querying order；
Log-on message logs in submodule, logs in the view networked terminals using the log-on message for industrial personal computer；
Version querying submodule sends out the version querying order for industrial personal computer when logging in view networked terminals success
It send to the view networked terminals.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109714611A (en) * | 2018-12-13 | 2019-05-03 | 视联动力信息技术股份有限公司 | A kind of method and apparatus of program version inspection |
| CN110187903A (en) * | 2019-04-19 | 2019-08-30 | 视联动力信息技术股份有限公司 | A kind of upgrade method and device |
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