CN111901708A - Master-slave mode and peer-to-peer mode combined optical fiber communication system - Google Patents
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Abstract
The application discloses a master-slave mode, peer-to-peer mode combined optical fiber communication system, comprising a plurality of nodes, wherein the plurality of nodes comprise an NC node and a plurality of NT nodes, and the method comprises the following steps: the network topology is a bus type network topology; the communication modes among the nodes comprise a master-slave mode and a peer-to-peer mode; the mode of switching the master-slave communication into the peer-to-peer communication among the nodes is as follows: after the master-slave communication is finished, the NC broadcasts and sends the SOD message; after the plurality of nodes receive the SOD message, the communication modes of the plurality of nodes are switched into an equation pair; and the peer-to-peer communication mode among the nodes is a preemptive bus mode.
Description
Technical Field
The application relates to the field of optical fiber communication, in particular to a master-slave and peer-to-peer combined optical fiber communication system.
Background
The fiber channel technology is more and more widely applied to the aerospace field at home and abroad by virtue of the characteristics of high bandwidth, low delay and high reliability, the fiber is used as a command response type time trigger protocol, a deterministic network can be constructed by virtue of high speed, high reliability and support of real-time deterministic transmission behaviors, the fiber is suitable for aerospace instruction control, data management, load equipment data transmission and the like, and the fiber is a master-slave communication mode. In some cases, peer-to-peer communication is also a very common communication. How to combine the master-slave mode of communication with the peer-to-peer mode of communication is an urgent problem to be solved in optical fiber communication.
Disclosure of Invention
To solve the problems in the prior art, the application provides an optical fiber communication system which combines master-slave communication and peer-to-peer communication.
The embodiment of the application provides a master-slave and peer-to-peer combined optical fiber communication system, which comprises a plurality of nodes, wherein the plurality of nodes comprise NC nodes and a plurality of NT nodes, and the network topology is a bus type network topology; the communication modes among the nodes comprise a master-slave mode and a peer-to-peer mode; the mode of switching the master-slave communication into the peer-to-peer communication among the nodes is as follows: after the master-slave communication is finished, the NC broadcasts and sends the SOD message; after the plurality of nodes receive the SOD message, the communication modes of the plurality of nodes are switched into an equation pair; and the peer-to-peer communication mode among the nodes is a preemptive bus mode.
Further, the NC node includes an OLT module therein, and the peer-to-peer communication process includes: the method comprises the steps that when the NT node needs to send data and judges that a link is stable and a current bus is idle, the NT node establishes a link with an OLT (optical line terminal) in an NC (numerical control) node; after the link is established, an OLT module in the NC node broadcasts and sends a bus to occupy a source language; after the link is established, the NT node sends data to the NC node, and the NC node receives the data and then broadcasts and forwards the data; and after the data is sent, the OLT module in the NC node broadcasts a sending bus to release the source language.
Further, in the peer-to-peer communication process, when a plurality of NT nodes need to send data at the same time, the node link may be unlocked, the high-priority NT node resumes the link establishment after waiting for the link to be stable, and the low-priority NT node abandons the active data sending request.
Further, in the peer-to-peer communication process, the peer-to-peer communication process further includes: when the NC node needs to send the emergency message, the NC node terminates forwarding the data of the NT2 node; an OLT module in an NC node sends a source language for terminating NT sending; the NC node transmits the urgent message.
Furthermore, the NC node is located on the bus, and the NT node is connected with the bus through the passive optical splitter, so that communication between the NT node and the NC node is realized.
Further, the master-slave mode communication process comprises: the NC node firstly sends a control command message, a data transmission message and a state acquisition message to the NT nodes, and then the NC node communicates with the NT nodes in a polling mode to send a state query message; after receiving the state query message of the NC node, the NT node returns a state sequence to the NC node; and the NC node analyzes after receiving the state sequence, judges whether the NT node has data to be transmitted, and sends a read type command to the NT node which has the data to be sent when the NC node detects that the NT node has the data to be sent.
Further, after the master-slave communication and the peer-to-peer communication of the plurality of nodes are finished, a bus quiesce phase is further included, and data transmission is not performed among the plurality of nodes in the bus quiesce phase.
Further, when the total duration of the master-slave communication, peer-to-peer communication and bus silence phase is a period T, the current master-slave communication duration is T, and T/T does not exceed 70%, the NC node starts a peer-to-peer communication process; when T/T exceeds 70%, the NC node does not start the peer-to-peer communication process.
Further, the current master-slave communication duration refers to: the time length from the starting point of the periodic master-slave communication at the moment after completing the data transmission in the master-slave communication process.
Further, the current master-slave communication duration refers to: after finishing certain data transmission in the process of master-slave communication, the NC executes polling operation, and the NC detects the time length from the starting point of the period master-slave communication when NT needs to transmit data through polling.
According to the embodiment of the application, bus type communication is carried out in a polling mode, peer-to-peer type communication is carried out in a bus preempting mode, and compatibility of two communication modes is achieved.
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In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that it is also possible for a person skilled in the art to apply the application to other similar scenarios without inventive effort on the basis of these drawings. Unless otherwise apparent from the context of language or otherwise indicated, like reference numerals in the figures refer to like structures and operations.
FIG. 1 is a schematic diagram of a bussed network topology according to some embodiments of the present application;
FIG. 2 is a diagram of a communication scheduling process for a master-slave, peer-to-peer combination fiber optic communication system according to some embodiments of the present application;
fig. 3 is a frame format schematic of a SOD message shown according to some embodiments of the present application.
Detailed Description
In the following detailed description, numerous specific details of the present application are set forth by way of examples in order to provide a thorough understanding of the relevant disclosure. It will be apparent, however, to one skilled in the art that the present application may be practiced without these specific details. It should be understood that the use of the terms "system," "apparatus," "unit" and/or "module" herein is a method for distinguishing between different components, elements, portions or assemblies at different levels of sequential arrangement. However, these terms may be replaced by other expressions if they can achieve the same purpose.
It will be understood that when a device, unit or module is referred to as being "on" … … "," connected to "or" coupled to "another device, unit or module, it can be directly on, connected or coupled to or in communication with the other device, unit or module, or intervening devices, units or modules may be present, unless the context clearly dictates otherwise. For example, as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
These and other features and characteristics of the present application, as well as the methods of operation and functions of the related elements of structure and the combination of parts and economies of manufacture, will be better understood upon consideration of the following description and the accompanying drawings, which form a part of this specification. It is to be expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended as a definition of the limits of the application. It will be understood that the figures are not drawn to scale.
Various block diagrams are used in this application to illustrate various variations of embodiments according to the application. It should be understood that the foregoing and following structures are not intended to limit the present application. The protection scope of this application is subject to the claims.
Fig. 1 is a schematic diagram of a bussed network topology according to some embodiments of the present application. As shown in fig. 1, the system includes a plurality of nodes, and specifically includes an NC node and a plurality of NT nodes, and the connection mode of the NC node and the NT nodes is a bus type. The NC node is located at one end of the bus, and the NT nodes are connected with the bus through the optical splitters respectively so as to achieve communication with the NC.
In some embodiments, the network architecture is provided with two parallel buses, and the two buses are redundant and backup to each other and work simultaneously, so that the system can work normally when any one of the buses fails. And the optical splitter of each NT node connected with the bus is a passive optical splitter. Further, through the bus type architecture, the master-slave communication and the peer-to-peer communication are simultaneously realized.
Fig. 2 is a diagram illustrating a communication scheduling process for a master-slave, peer-to-peer combination fiber optic communication system according to some embodiments of the present application.
As shown in fig. 2, the communication modes among the nodes include a master-slave mode and a peer-to-peer mode. In some embodiments, after the master-slave communication and the peer-to-peer communication of the plurality of nodes are ended, a bus quiesce phase is further included, and no data transmission is performed among the plurality of nodes in the bus quiesce phase.
As shown in fig. 2, in the master-slave communication phase, a time synchronization message and an instruction control message are included. The master-slave mode communication process comprises the following steps: the NC node firstly sends a control command message, a data transmission message and a collection status message to the NT nodes, and then the NC node communicates with the NT nodes in a polling mode to send a status query message; after receiving the state query message of the NC node, the NT node returns a state sequence to the NC node; and the NC node analyzes after receiving the state sequence, judges whether the NT node has data to be transmitted, and sends a read type command to the NT node which has the data to be sent when the NC node detects that the NT node has the data to be sent.
In some embodiments, the manner of switching from master-slave communication to peer-to-peer communication among the plurality of nodes is as follows: after the master-slave communication is finished, the NC broadcasts and sends the SOD message; after the plurality of nodes receive the SOD message, the communication modes of the plurality of nodes are switched to be in an equation.
Specifically, the switching from master-slave mode to peer-to-peer mode is: when T/T does not exceed 70%, the NC node starts a peer-to-peer communication process; when T/T exceeds 70%, the NC node does not start the peer-to-peer communication process. The total duration of the master-slave communication, the peer-to-peer communication and the bus silence phase is a period T, and the current master-slave communication duration is T. The T is configured by the system and can be adjusted in advance according to needs. The size of t depends on the message arrangement of the NC in the master-slave stage, and the message is transmitted until the message is transmitted, so that t is variable.
In some embodiments, the current master-slave communication duration t refers to: the time length from the starting point of the periodic master-slave communication at the moment after completing the data transmission in the master-slave communication process.
In some embodiments, the current master-slave communication duration t refers to: after finishing certain data transmission in the process of master-slave communication, the NC executes polling operation, and the NC detects the time length from the starting point of the period master-slave communication when NT needs to transmit data through polling.
In some embodiments, the NC node includes an OLT module, and peer-to-peer communication among the plurality of nodes is a preemption bus. Specifically, the peer-to-peer communication process includes: the method comprises the steps that when the NT node needs to send data and judges that a link is stable and a current bus is idle, the NT node establishes a link with an OLT (optical line terminal) in an NC (numerical control) node; after the link is established, an OLT module in the NC node broadcasts and sends a bus to occupy a source language; after the link is established, the NT node sends data to the NC node, and the NC node receives the data and then broadcasts and forwards the data; and after the data is sent, the OLT module in the NC node broadcasts a sending bus to release the source language. After the bus is released, other nodes may initiate data transfers.
In some embodiments, when multiple nodes need to send data at the same time, the node link is lost. The processing mode at this time is that the NT with the high priority restarts the link establishment after waiting for the link to be stable, and the NT with the low priority abandons the active data transmission request this time, and initiates the data transmission function after waiting for the completion of the data transmission with the high priority and the bus release.
As shown in fig. 2, an urgent message (denoted as E in the drawing) occurs during the peer-to-peer communication. When the NC node needs to send the emergency message, the NC node terminates forwarding the data of the NT2 node; an OLT module in an NC node sends a source language for terminating NT sending; the NC node transmits the urgent message.
Fig. 3 is a frame format schematic of a SOD message shown according to some embodiments of the present application.
As mentioned above, after the master-slave communication is finished, the NC node broadcasts and sends the SOD message to start the peer-to-peer transmission process. In some embodiments, the SOD message uses a mode command in an optical fiber protocol, the message length is 4 bytes, the frame format is as shown in fig. 3, the total message length is 40 bytes, assuming that the bus rate is 2.5Gbps, the sending time is 160ns, the transmission delay of the optical fiber link is 5ns per meter, assuming that the length of the optical fiber is 200 meters, the total transmission of the SOD message is actually 160ns +5ns × 200 — 1160ns, and the conventional communication period is 5ms, the bandwidth occupied by the SOD message is 0.0232%, the bandwidth occupancy ratio is extremely low, and there is no waste of the bus bandwidth.
Compared with the prior art, the application has the following beneficial effects:
the method solves the peer-to-peer communication problem of a bus type optical fiber network formed by passive optical splitters, ensures that equipment acquires the bus control right through a bus competition mechanism in the peer-to-peer communication stage, and realizes peer-to-peer communication;
secondly, a flexible master-slave mode and peer-to-peer mode communication switching scheme is provided, and upper layer application can adopt different switching modes according to actual application services;
and thirdly, a bus silent time mechanism based on time synchronization is provided, and the bus silent mechanism ensures that the bus is in an idle state (bus silent) with allowance in each control period, thereby ensuring the accuracy of the control period.
It is to be understood that the above-described embodiments of the present application are merely illustrative of or illustrative of the principles of the present application and are not to be construed as limiting the present application. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. Further, it is intended that the appended claims cover all such changes and modifications that fall within the scope and range of equivalents of the appended claims, or the equivalents of such scope and range.
Claims (10)
1. A master-slave, peer-to-peer combination fiber optic communication system comprising a plurality of nodes including an NC node and a plurality of NT nodes, wherein:
the network topology is a bus type network topology;
the communication modes among the nodes comprise a master-slave mode and a peer-to-peer mode;
the mode of switching the master-slave communication into the peer-to-peer communication among the nodes is as follows:
after the master-slave communication is finished, the NC broadcasts and sends the SOD message;
after the plurality of nodes receive the SOD message, the communication modes of the plurality of nodes are switched into an equation pair;
and the peer-to-peer communication mode among the nodes is a preemptive bus mode.
2. A fiber optic telecommunications system according to claim 1, wherein the NC node includes an OLT module therein, and wherein the peer-to-peer communications process includes:
the method comprises the steps that when the NT node needs to send data and judges that a link is stable and a current bus is idle, the NT node establishes a link with an OLT (optical line terminal) in an NC (numerical control) node;
after the link is established, an OLT module in the NC node broadcasts and sends a bus to occupy a source language;
after the link is established, the NT node sends data to the NC node, and the NC node receives the data and then broadcasts and forwards the data;
and after the data is sent, the OLT module in the NC node broadcasts a sending bus to release the source language.
3. The fiber optic communication system of claim 2, wherein during peer-to-peer communication, when a plurality of NT nodes need to transmit data at the same time, link lock loss occurs in the nodes, the high priority NT node resumes link establishment after waiting for the link to stabilize, and the low priority NT node abandons the active data transmission request.
4. A fiber optic communication system according to claim 2 wherein the peer-to-peer communication process further comprises:
when the NC node needs to send the emergency message, the NC node terminates forwarding the data of the NT2 node;
an OLT module in an NC node sends a source language for terminating NT sending;
the NC node transmits the urgent message.
5. The fiber optic communication system of claim 2, wherein the NC node is located on a bus and the NT node is coupled to the bus via a passive optical splitter to enable communication between the NT node and the NC node.
6. A fiber optic communication system according to claim 1 wherein the master-slave communications process comprises:
the NC node communicates with the plurality of NT nodes in a polling mode to send a state inquiry message;
after receiving the state query message of the NC node, the NT node returns a state sequence to the NC node;
and the NC node analyzes after receiving the state sequence, judges whether the NT node has data to be transmitted, and sends a read type command to the NT node which has the data to be sent when the NC node detects that the NT node has the data to be sent.
7. The fiber optic communication system of claim 6, further comprising a bus quiet phase after the master-slave communication and the peer-to-peer communication of the plurality of nodes are completed, wherein no data is transmitted between the plurality of nodes during the bus quiet phase.
8. The fiber optic communication system of claim 7, wherein the total duration of the master-slave communication, peer-to-peer communication and bus quiet phase is period T, when the current master-slave communication duration is T, and T/T does not exceed 70%, the NC node starts the peer-to-peer communication process; when T/T exceeds 70%, the NC node does not start the peer-to-peer communication process.
9. A fiber optic communication system according to claim 8 wherein the current master-slave communications duration t is:
the time length from the starting point of the periodic master-slave communication at the moment after completing the data transmission in the master-slave communication process.
10. A fiber optic communication system according to claim 9 wherein the current master-slave communications duration t is:
after finishing certain data transmission in the process of master-slave communication, the NC executes polling operation, and the NC detects the time length from the starting point of the period master-slave communication when NT needs to transmit data through polling.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102404368A (en) * | 2010-09-17 | 2012-04-04 | 财团法人工业技术研究院 | Hybrid equivalent and master-slave type data transmission architecture and method |
| CN105072512A (en) * | 2015-07-08 | 2015-11-18 | 北京邮电大学 | Optical network system |
| US20170142763A1 (en) * | 2015-11-17 | 2017-05-18 | Verizon Patent And Licensing Inc. | Offline user device communications |
| EP3211840A1 (en) * | 2016-02-25 | 2017-08-30 | Facebook Inc. | Techniques for messaging bot rich communication |
| JP2018011137A (en) * | 2016-07-11 | 2018-01-18 | 株式会社東芝 | Communication relay device, communication relay system, method, and program |
| CN108684071A (en) * | 2018-04-25 | 2018-10-19 | 东峡大通（北京）管理咨询有限公司 | The power consumption control method and system of the device node of MESH network |
| CN109474341A (en) * | 2018-12-21 | 2019-03-15 | 上海赛治信息技术有限公司 | A kind of fiber optic network and its network topological method |
| CN110062302A (en) * | 2019-04-08 | 2019-07-26 | 上海赛治信息技术有限公司 | PON network communication framework and communication means based on TDMA |
-
2020
- 2020-07-03 CN CN202010631220.XA patent/CN111901708B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102404368A (en) * | 2010-09-17 | 2012-04-04 | 财团法人工业技术研究院 | Hybrid equivalent and master-slave type data transmission architecture and method |
| CN105072512A (en) * | 2015-07-08 | 2015-11-18 | 北京邮电大学 | Optical network system |
| US20170142763A1 (en) * | 2015-11-17 | 2017-05-18 | Verizon Patent And Licensing Inc. | Offline user device communications |
| EP3211840A1 (en) * | 2016-02-25 | 2017-08-30 | Facebook Inc. | Techniques for messaging bot rich communication |
| JP2018011137A (en) * | 2016-07-11 | 2018-01-18 | 株式会社東芝 | Communication relay device, communication relay system, method, and program |
| CN108684071A (en) * | 2018-04-25 | 2018-10-19 | 东峡大通（北京）管理咨询有限公司 | The power consumption control method and system of the device node of MESH network |
| CN109474341A (en) * | 2018-12-21 | 2019-03-15 | 上海赛治信息技术有限公司 | A kind of fiber optic network and its network topological method |
| CN110062302A (en) * | 2019-04-08 | 2019-07-26 | 上海赛治信息技术有限公司 | PON network communication framework and communication means based on TDMA |
Non-Patent Citations (3)
| Title |
|---|
| XIAOBO ZHANG: "《A master slave peer to peer integration microgrid control strategy based on communication》", 《2016 IEEE PES ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC)》 * |
| 王强: "《智能变电站信号探测设备的研究和应用》", 《智能电网》 * |
| 缑丽敏: "一种基于同步多主对等总线的通信系统", 《电子技术》 * |
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Address after: 701, 7th Floor, Building 6, Courtyard 8, Kegu 1st Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing, 100176 Patentee after: BEIJING TASSON TECHNOLOGY Ltd. Address before: No.51, Muxidi Beili, Xicheng District, Beijing 100038 Patentee before: BEIJING INSTITUTE OF CONTROL AND ELECTRONIC TECHNOLOGY Patentee before: BEIJING TASSON TECHNOLOGY Ltd. |
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Address after: No.51, Muxidi Beili, Xicheng District, Beijing 100038 Patentee after: BEIJING INSTITUTE OF CONTROL AND ELECTRONIC TECHNOLOGY Patentee after: Beijing Tasson Technology Ltd. Address before: No.51, Muxidi Beili, Xicheng District, Beijing 100038 Patentee before: BEIJING INSTITUTE OF CONTROL AND ELECTRONIC TECHNOLOGY Patentee before: BEIJING TASSON TECHNOLOGY Ltd. |