CN107483306A - A kind of communication means, communication system and storage medium - Google Patents
A kind of communication means, communication system and storage medium Download PDFInfo
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- CN107483306A CN107483306A CN201710631283.3A CN201710631283A CN107483306A CN 107483306 A CN107483306 A CN 107483306A CN 201710631283 A CN201710631283 A CN 201710631283A CN 107483306 A CN107483306 A CN 107483306A
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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]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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Abstract
The present invention is applied to communication technical field, there is provided a kind of communication means, communication system and storage medium, including：Establish the communication connection relation of bus transceiver and communication node；The bus transceiver receives the packet that source node is sent, and the packet includes source data, data transmission information；Parse the packet and obtain the address of the destination node in the data transmission information, and the packet is sent to the destination node, in order to which the destination node reads the source data.Communication connection between multiple communication nodes is realized by bus transceiver, solves the problems, such as that existing communication system architecture is complicated, it is high to build cost.
Description
Technical field
The invention belongs to communication technical field, more particularly to a kind of communication means, communication system and storage medium.
Background technology
Modern communication system, from the point of view of whole system, is made up of, network node refers to an electricity many network nodes
Brain or other equipment have independent address with one and are connected with the network for transmitting or receiving data function.Node can be work
Stand, client, the network user or personal computer, the equipment that can also be server, printer and other network connections.Each
Work station, server, terminal device, the network equipment, the equipment that possesses oneself unique network address are all network nodes.Being permitted
Multiple network node is connected with communication line, forms certain geometrical relationship, here it is computer network topologies.
Data transfer in network must establish direct communication link between two network nodes carried out data transmission
Connect relation, but when the network node quantity present in the network topology is more, it is this must any two network node it
Between the network topology structure establishing direct communication annexation and can carry out data transmission will seem especially too fat to move and can't bear.Especially
It is when increasing network node in existing network topology structure it is necessary to establish accordingly increased network node with it is existing
Direct communication annexation between some network nodes, it is seen that the cost that is complicated, building of this communication system is higher.
The content of the invention
In view of this, it is existing to solve the embodiments of the invention provide a kind of communication means, communication system and storage medium
Communication system architecture it is complicated, build the problem of cost is higher.
The first aspect of the embodiment of the present invention provides a kind of communication means, including：
Establish the communication connection relation of bus transceiver and communication node；
The bus transceiver receives the packet that source node is sent, and the packet includes source data, data transfer is believed
Breath；
Parse the packet and obtain the address of the destination node in the data transmission information, and the packet is sent out
The destination node is delivered to, in order to which the destination node reads the source data.
The second aspect of the embodiment of the present invention provides a kind of communication system, including：
Bus transceiver, at least two communication nodes, the communication node communicate to connect with the bus transceiver respectively；
The bus transceiver, for establishing the communication connection relation with communication node；
The bus transceiver, it is additionally operable to receive the packet that source node is sent, the packet includes source data, data
Transmit information；
The bus transceiver, the destination node for being additionally operable to parse in the packet acquisition data transmission information
Address, and the packet is sent to the destination node；
The destination node, for receiving the packet and reading the source data.
The third aspect of the embodiment of the present invention provides a kind of computer-readable recording medium, the computer-readable storage
Media storage has computer program, and the computer program realizes the embodiment of the present invention when being executed by one or more processors
On the one hand the step of methods described provided.
Existing beneficial effect is the embodiment of the present invention compared with prior art：
The embodiment of the present invention is by establishing the communication connection relation of bus transceiver and communication node；The bus transceiver
The packet that source node is sent is received, the packet includes source data, data transmission information；Parse the packet and obtain institute
The address of the destination node in data transmission information is stated, and the packet is sent to the destination node, in order to described
Destination node reads the source data.Each communication node is connected by bus transceiver, bus transceiver and each communication
What is established between node is communication connection relation, passes through bus when a communication node sends data to another communication node
Transceiver is forwarded.When communication node quantity is more, this communication system architecture is simple, the cost built is relatively low.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the implementation process schematic diagram for the communication means that one embodiment of the invention provides；
Fig. 2 is the implementation process schematic diagram for the communication means that further embodiment of this invention provides；
Fig. 3 is the implementation process schematic diagram for the communication means that another embodiment of the present invention provides；
Fig. 4 is the implementation process schematic diagram for the communication means that yet another embodiment of the invention provides；
Fig. 5 is the schematic block diagram for the communication system that one embodiment of the invention provides.
Embodiment
In describing below, in order to illustrate rather than in order to limit, it is proposed that such as tool of particular system structure, technology etc
Body details, thoroughly to understand the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention can also be realized in the other embodiments of details.In other situations, omit to well-known system, device, electricity
Road and the detailed description of method, in case unnecessary details hinders description of the invention.
It should be appreciated that ought be in this specification and in the appended claims in use, special described by the instruction of term " comprising "
Sign, entirety, step, operation, the presence of element and/or component, but be not precluded from one or more of the other feature, entirety, step,
Operation, element, component and/or its presence or addition for gathering.
It is also understood that the term used in this description of the invention is merely for the sake of the mesh for describing specific embodiment
And be not intended to limit the present invention.As used in description of the invention and appended claims, unless on
Other situations are hereafter clearly indicated, otherwise " one " of singulative, "one" and "the" are intended to include plural form.
It will be further appreciated that the term "and/or" used in description of the invention and appended claims is
Refer to any combinations of one or more of the associated item listed and be possible to combine, and including these combinations.
As used in this specification and in the appended claims, term " if " can be according to context quilt
Be construed to " when ... " or " once " or " in response to determining " or " in response to detecting ".Similarly, phrase " if it is determined that " or
" if detecting [described condition or event] " can be interpreted to mean according to context " once it is determined that " or " in response to true
It is fixed " or " once detecting [described condition or event] " or " in response to detecting [described condition or event] ".
In order to illustrate technical solutions according to the invention, illustrated below by specific embodiment.
Fig. 1 is the implementation process schematic diagram for the communication means that one embodiment of the invention provides, and this method can as shown in the figure
To comprise the following steps：
Step S101, establish the communication connection relation of bus transceiver and communication node.
In embodiments of the present invention, the bus transceiver is the device of a physical layer, and it is bus control unit and thing
The interface between bus is managed, device can provide the differential transmitting capacity to bus and the differential receiving ability to bus, specifically
There can be the chip of multiple model, for example, Philips PCA82C250, Bosch CF151 and CDF160.The communication section
Point refers to have the work station of communication function, server, terminal device, the network equipment, possesses oneself unique network address
Equipment.The communication connection relation for establishing bus transceiver and communication node refers to by wired or wirelessly establish logical
Believe annexation.In actual applications, it is understood that there may be multiple communication nodes, can be built when there is communication requirement according to communication requirement
Vertical communication connection, when without communication requirement, may be at non-communicating connection status.
Step S102, the bus transceiver receive the packet that source node is sent, and the packet includes source data, number
According to transmission information.
In embodiments of the present invention, when there is data transfer demands, the communication node for sending source data is referred to as source node,
The communication node for receiving source data is referred to as destination node.According to different data transfer demands, phase can also occur for communication node
The diversification in role answered, source node and destination node be not communication node inherently, but according to a data transfer need
It is source node to seek the corresponding communication node for assigning transmission source data, while the communication node for assigning reception source data is target section
Point.Forwarded because source data needs to be sent to bus transceiver, if bus transceiver can not know what is be currently received
Which communication node is source data will specifically be sent to, then can not carry out forwarding operation, so needing source data and data biography
Defeated information package is sent into packet, and data transmission information contains the address of destination node.
Step S103, parses the address that the packet obtains the destination node in the data transmission information, and by institute
State packet to send to the destination node, in order to which the destination node reads the source data.
In embodiments of the present invention, the source data and data transfer information package are transmitted into packet, so needing to solve
Packet is analysed to obtain the address of the destination node in data transmission information, destination node is then sent data packets to, also may be used
Only to send the source data after parsing to destination node.Destination node can parse packet after receiving packet and read source
Data, if what is received is source data, directly read source data.
The embodiment of the present invention is by establishing the communication connection relation of bus transceiver and communication node；The bus transceiver
The packet that source node is sent is received, the packet includes source data, data transmission information；Parse the packet and obtain institute
The address of the destination node in data transmission information is stated, and the packet is sent to the destination node, in order to described
Destination node reads the source data.Each communication node is connected by bus transceiver, bus transceiver and each communication
What is established between node is communication connection relation, passes through bus when a communication node sends data to another communication node
Transceiver is forwarded.When communication node quantity is more, this communication system architecture is simple, the cost built is relatively low.
Fig. 2 is the implementation process schematic diagram for the communication means that further embodiment of this invention provides, and the embodiment is in Fig. 1 institutes
On the basis of the embodiment shown, add destination node and receive the step after source data, this method can include as shown in the figure
Following steps：
Step S201, sent by the packet to the destination node, receive what the destination node was sent
Source data reads the information of failure, and the information that the source data reads failure is believed including data transfer corresponding to the source data
Breath.
In embodiments of the present invention, destination node receives packet and can parse packet acquisition source data afterwards and read
Source data, but due to some mistakes in data transmission procedure, it is possible to cause packet to send to the process of destination node
In be damaged, then destination node can not just read source data.At this moment destination node will reacquire the source data, specifically can be with
By the information of destination node transmission source digital independent failure to source node, the information of transmission source digital independent failure is to source node
And by bus transceiver, but bus transceiver needs to know that source data can be read failure by the source node of source data
Information be sent to source node.This requires source node when source data is sent into destination node for the first time, in the lump transmission source
Address of node, but in the case that source node continues to send packet to destination node, even if source node receives source number
According to the information for reading failure, it can not still know specifically which source data reads failure, so it is contemplated that in source data
Being sent to increases the sequence number of source node in the data transmission information of destination node, such data transmission information not only includes target section
The address of point, also include the address of source data sequence number and source node.
Step S202, the information that the source data is read to failure according to data transmission information corresponding to the source data are sent out
The source node is delivered to, the source number is resend in order to which the source node reads the information to fail according to the source data
According to.
In embodiments of the present invention, the data of source data pass according to corresponding to the information that the source data received reads failure
The address of defeated acquisition of information source node, then information that the source data is read to failure are sent to the source node.Source node
Receive source data and read after the information of failure can according to the address of destination node and source data sequence number transmission source again
Data.When each communication node is as source node, there can be the sortord of the source data of oneself, can be with one source number of every transmission
According to just adding 1 to source data sequence number accordingly, different sequences can also be carried out according to different destination node address.In a word, together
The source data that one source node is sent to same destination node must have different source data sequence numbers.In addition, bus transceiver
The information of packet transmission, which can be received, can also receive the information that source data reads failure, although source node in the two information
Address it is consistent, the address of destination node is consistent, but is towards opposite direction transmission, this just need bus transceiver according to
Different information types selects different sending directions.When bus transceiver receive be packet transmission information when, root
According to the address transmission data bag of destination node；When bus transceiver receive be source data read failure information when, according to
The information of the address transmission source digital independent failure of source node.Certain bus transceiver is also possible to that more info class can be received
Type, different sending directions is selected according to different information types.
The embodiment of the present invention considers the content that packet error is may result in data transmission procedure, can so lead to
The information realization source node for crossing the reading failure of reverse transfer source data resends the source data for reading failure, and is provided with source
Data sequence number, the source data that source node needs to resend according to the positioning of source data sequence number.
Fig. 3 is the implementation process schematic diagram for the communication means that further embodiment of this invention provides, and the embodiment is in Fig. 1 institutes
On the basis of the embodiment shown, add destination node and receive the step after source data, this method can include as shown in the figure
Following steps：
Step S301, receive the source data that the destination node is sent and read successful information, the source data read into
The information of work(includes the address of the source data sequence number and the source node.
It is with the difference of the embodiment shown in Fig. 2, destination node successfully reads source data in the embodiment of the present invention, at this moment
The information for returning to source node is not the information that source data reads failure, but source data reads successful information, destination node
Once successfully reading source data, then source node is without again sending source data to destination node, so the source data returned is read
Take successful information can not include the address of destination node, but due to still needing bus transceiver to be transmitted to source node,
The source data reads the address that successful information needs to include the source node.
Step S302, the source data is read by successful information according to the address of the source node and sent to source section
Point, deleted in order to which the source node backs up the source data according to the source data sequence number.
In embodiments of the present invention, after bus transceiver receives the successful information of source data reading, according to source node
Address between source data read into successful information sent to the source node, source node is in order to save memory space, Ke Yigen
The backup for reading successful source data is deleted according to being actually needed.Source node is to read to distinguish which source data in memory space
Take successful source data, it is still desirable to the sequence number of source data is obtained, so the source data reads successful information including described
The address of source data sequence number and the source node.The relevant explanation of the sequence number of specific source data can refer to the embodiment shown in Fig. 2
In description, will not be repeated here.
Fig. 4 is the implementation process schematic diagram for the communication means that further embodiment of this invention provides, and the embodiment is in Fig. 1 institutes
On the basis of the embodiment shown, add destination node and receive the step after source data, this method can include as shown in the figure
Following steps：
Step S401, receive the destination node and judge to send after source data packet loss being present according to the source data sequence number
Acquisition packet loss source data solicited message, the solicited message includes data transmission information corresponding to the packet loss source data.
Unlike the embodiment shown in Fig. 2 and Fig. 3, the embodiment of the present invention return be not source data read failure or
The successful information of person, but obtain the solicited message of packet loss source data.In embodiments of the present invention, it is not true due to network transmission
It is qualitative, such as packet loss, data delay etc., may result in destination node is not the total data that can receive source node transmission
Bag, that is, it is possible that packet loss phenomenon.Due to source node send packet when can corresponding transmission source data sequence number, also
It is that each source data is corresponding with unique source data sequence number, can be at interval of predetermined after destination node receives packet
The time source data sequence number of the packet to receiving is ranked up, and checks that source data sequence number with the presence or absence of missing, lacks if existing
(for example, the source data serial number 0003,0004,0006,0007 received represents missing) is lost, judges specifically to lose according to sequence number
The sequence number (0005) of the source data of bag, solicited message to the bus that destination node can sends acquisition packet loss source data are received and dispatched
Device, the solicited message include data transmission information corresponding to the packet loss source data.
Step S402, the solicited message is sent to described according to data transmission information corresponding to the packet loss source data
Source node, in order to which the source node sends the packet loss source data according to the solicited message.
In embodiments of the present invention, after bus transceiver receives the solicited message, according to the information type received
Judge the direction (being transmitted from destination node to source node) of data transfer, so the request can be believed according to the address of source node
Breath is sent to the source node, after source node receives solicited message, according in the data transmission information of packet loss source data
Source data sequence number and destination node address resend source data.
The embodiment of the present invention adds the processing mode of the packet loss phenomenon in network transmission, can reversely send acquisition packet loss
The solicited message of source data, packet loss source data is resend according to the solicited message.
It should be understood that the size of the sequence number of each step is not meant to the priority of execution sequence, each process in above-described embodiment
Execution sequence should determine that the implementation process without tackling the embodiment of the present invention forms any limit with its function and internal logic
It is fixed.
Fig. 5 is the schematic block diagram for the communication system that one embodiment of the invention provides, and for convenience of description, is only shown and this hair
The related part of bright embodiment.
The communication system 5 includes：
Bus transceiver 51, at least two communication nodes, the communication node communicate with the bus transceiver 51 respectively
Connection；
The bus transceiver 51, for establishing the communication connection relation with communication node；
The bus transceiver 51, be additionally operable to receive source node 52 send packet, the packet include source data,
Data transmission information；
The bus transceiver 51, it is additionally operable to parse the destination node in the packet acquisition data transmission information
Address, and the packet is sent to the destination node 53；
The destination node 53, for receiving the packet and reading the source data.
Optionally, the data transmission information includes：The address of source node, the sequence number of source data.
Optionally, the destination node 52, the information of transmission source digital independent failure is additionally operable to, the source data, which is read, to be lost
The information lost includes data transmission information corresponding to the source data
The bus transceiver 51, it is additionally operable to receive the information that the source data that the destination node 53 is sent reads failure,
And the source data is read the information to fail and sent to the source node by the data transmission information according to corresponding to the source data；
The source node 52, the information for reading failure according to the source data resend the source data.
Optionally, the destination node 53, is additionally operable to the successful information of transmission source digital independent, the source data read into
The information of work(includes the address of the source data sequence number and the source node；
The bus transceiver 51, it is additionally operable to receive the successful information of source data reading that the destination node 53 is sent,
And the source data is read by successful information according to the address of the source node and sent to the source node；
The source node 52, it is additionally operable to be backed up the source data according to the source data sequence number and deletes.
Optionally, the destination node 53, it is additionally operable to determine whether source data packet loss be present according to the source data sequence number
Phenomenon, if so, then sending the solicited message for obtaining packet loss source data to the bus transceiver, the solicited message is including described
Data transmission information corresponding to packet loss source data；
The bus transceiver 51, it is additionally operable to receive the destination node 53 and judges source be present according to the source data sequence number
The solicited message of the acquisition packet loss source data sent after data packetloss, and the data transfer according to corresponding to the packet loss source data
Information sends the solicited message to the source node；
The source node 52, it is additionally operable to send the packet loss source data according to the solicited message.
Dotted portion in Fig. 5 represents can also there is other communication nodes, source node and target section in the communication system 5
Point belongs to communication node.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and is not described in detail or remembers in some embodiment
The part of load, it may refer to the associated description of other embodiments.
Those of ordinary skill in the art it is to be appreciated that be with reference to each example that the embodiments described herein describes
System and method and step, it can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, application-specific and design constraint depending on technical scheme.Professional and technical personnel
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided by the present invention, it should be understood that disclosed communication system and communication means, Ke Yitong
Other modes are crossed to realize.Another, shown or discussed mutual coupling or direct-coupling or communication connection can be with
It is that the INDIRECT COUPLING or communication connection of device or unit, can be electrical, mechanical or other forms by some interfaces.
If the communication system realized in the form of SFU software functional unit and as independent production marketing or in use,
It can be stored in a computer read/write memory medium.Based on such understanding, the present invention realizes above-described embodiment method
In all or part of flow, by computer program the hardware of correlation can also be instructed to complete, described computer journey
Sequence can be stored in a computer-readable recording medium, and the computer program can be achieved above-mentioned each when being executed by processor
The step of embodiment of the method..Wherein, the computer program includes computer program code, and the computer program code can
Think source code form, object identification code form, executable file or some intermediate forms etc..The computer-readable medium can be with
Including：Any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic disc, the light of the computer program code can be carried
Disk, computer storage, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random
Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that the computer
The content that computer-readable recording medium includes can carry out appropriate increase and decrease according to legislation in jurisdiction and the requirement of patent practice, such as
In some jurisdictions, according to legislation and patent practice, computer-readable medium does not include being electric carrier signal and telecommunications letter
Number.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although with reference to foregoing reality
Example is applied the present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each
Technical scheme described in embodiment is modified, or carries out equivalent substitution to which part technical characteristic；And these are changed
Or replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme, all should
Within protection scope of the present invention.
Claims (10)
- A kind of 1. communication means, it is characterised in that including：Establish the communication connection relation of bus transceiver and communication node；The bus transceiver receives the packet that source node is sent, and the packet includes source data, data transmission information；Parse the address that the packet obtains the destination node in the data transmission information, and by the packet send to The destination node, in order to which the destination node reads the source data.
- 2. communication means as claimed in claim 1, it is characterised in that the data transmission information includes：The address of source node, The sequence number of source data.
- 3. communication means as claimed in claim 2, it is characterised in that by the packet send to the destination node it Afterwards, methods described also includes：The information that the source data that the destination node is sent reads failure is received, the information that the source data reads failure includes institute State data transmission information corresponding to source data；The information that the source data is read to failure according to data transmission information corresponding to the source data is sent to source section Point, the source data is resend in order to which the source node reads the information to fail according to the source data.
- 4. communication means as claimed in claim 2, it is characterised in that by the packet send to the destination node it Afterwards, methods described also includes：Receive the source data that the destination node is sent and read successful information, the source data, which reads successful information, includes institute State the address of source data sequence number and the source node；The source data is read into successful information according to the address of the source node to send to the source node, in order to described The source data is backed up and deleted by source node according to the source data sequence number.
- 5. communication means as claimed in claim 2, it is characterised in that by the packet send to the destination node it Afterwards, methods described also includes：Receive the acquisition packet loss source that the destination node judges to send after source data packet loss being present according to the source data sequence number The solicited message of data, the solicited message include data transmission information corresponding to the packet loss source data；The solicited message is sent to the source node according to data transmission information corresponding to the packet loss source data, in order to The source node sends the packet loss source data according to the solicited message.
- A kind of 6. communication system, it is characterised in that including：Bus transceiver, at least two communication nodes, the communication node communicate to connect with the bus transceiver respectively；The bus transceiver, for establishing the communication connection relation with communication node；The bus transceiver, it is additionally operable to receive the packet that source node is sent, the packet includes source data, data transfer Information；The bus transceiver, it is additionally operable to parse the ground that the packet obtains the destination node in the data transmission information Location, and the packet is sent to the destination node；The destination node, for receiving the packet and reading the source data.
- 7. communication system as claimed in claim 6, it is characterised in that the data transmission information includes：The address of source node, The sequence number of source data.
- 8. communication system as claimed in claim 7, it is characterised in that the destination node, be additionally operable to transmission source digital independent The information of failure, the information that the source data reads failure include data transmission information corresponding to the source dataThe bus transceiver, it is additionally operable to receive the information that the source data that the destination node is sent reads failure, and according to institute Data transmission information corresponding to source data is stated to send the information of source data reading failure to the source node；The source node, the information for reading failure according to the source data resend the source data.
- 9. communication system as claimed in claim 7, it is characterised in that the destination node, be additionally operable to transmission source digital independent Successful information, the source data, which reads successful information, includes the address of the source data sequence number and the source node；The bus transceiver, it is additionally operable to receive the successful information of source data reading that the destination node is sent, and according to institute The address for stating source node sends the successful information of source data reading to the source node；The source node, it is additionally operable to be backed up the source data according to the source data sequence number and deletes.
- 10. a kind of computer-readable recording medium, the computer-readable recording medium storage has computer program, and its feature exists In when the computer program is executed by processor the step of realization such as any one of claim 1 to 5 methods described.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112702270A (en) * | 2020-12-18 | 2021-04-23 | 深圳赛安特技术服务有限公司 | Node calling method, system and storage medium based on event distribution mechanism |
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