CN111459517A - Master-slave equipment online program upgrading method under optical fiber ring network architecture - Google Patents
Master-slave equipment online program upgrading method under optical fiber ring network architecture Download PDFInfo
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- CN111459517A CN111459517A CN202010234463.XA CN202010234463A CN111459517A CN 111459517 A CN111459517 A CN 111459517A CN 202010234463 A CN202010234463 A CN 202010234463A CN 111459517 A CN111459517 A CN 111459517A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability
Abstract
The invention discloses a master-slave device online program upgrading method under an optical fiber ring network architecture, and belongs to the technical field of multi-device online program upgrading. The method comprises the steps that a main node provides a communication interface for receiving a program upgrading packet, and the main node receives the program upgrading packet and is used for upgrading the main node; and the master node receives the slave node program upgrading packet, transmits the slave node program upgrading packet to the corresponding slave node step by step through the optical fiber ring network, and the slave node receives the self program upgrading packet for self upgrading of the node. The invention only needs the main node to have an interface for receiving the upgrading program package, thereby saving the cost; meanwhile, the method is not limited by the number of system nodes, is matched with the advantages of an optical fiber ring network framework, and has good universality.
Description
Technical Field
The invention relates to the technical field of multi-device online program upgrading, in particular to a master-slave device online program upgrading method under an optical fiber ring network architecture.
Background
The system based on the optical fiber ring network architecture generally comprises a host and a plurality of slaves, and all node devices are cascaded through optical fibers to form a multistage cascade system. With the continuous improvement of system functions and the continuous establishment of new requirements, program upgrading of the system is inevitable.
A commonly used online upgrade method for a distributed system generally includes: each level of node equipment independently receives the program upgrading packet in a wireless or wired mode to realize self-upgrading; or manual upgrading is carried out from personnel to the location of the node equipment. It has significant disadvantages: each level of node equipment needs to be provided with a wireless or wired interface for receiving an upgrading program package, or needs to invest more manpower, so that the system maintenance cost is increased.
Disclosure of Invention
The present invention is directed to provide a method for upgrading an online program of a master device and a slave device in an optical fiber ring network architecture, which avoids the above-mentioned disadvantages in the background art. The method has the advantages of low cost, good universality, strong expansibility and the like.
The purpose of the invention is realized as follows:
a master-slave device online program upgrading method under an optical fiber ring network architecture comprises the following steps:
(1) the upper computer unpacks and frames the program upgrade package, and sends the program upgrade package to the main node by taking the frame as a unit;
(2) the main node receives the program upgrading data frame and judges whether the node is upgraded or other node upgraded according to the ID of the node to be upgraded in the data frame; if the node is upgraded, entering a program upgrading process of the node; if all the nodes are upgraded, entering the program upgrading process of the node and forwarding the upgraded data frame to all the slave nodes step by step; if the node is upgraded, the upgrading data frame is forwarded to the corresponding slave node step by step;
(3) after each node receives the program upgrading data frame of the node, the main control module of the node checks the data frame; if the verification fails, reporting a program upgrading data frame verification error response frame, and requesting the upper computer to retransmit the data frame; if the verification is successful, executing the step (4);
(4) judging whether the upgrading data frames are continuous or not according to the total program packet number and the current packet count in the data frames; if the data frame is discontinuous, reporting a program upgrading data frame missing response frame, and requiring an upper computer to reissue the missing data frame; if the data frames are continuous, executing the step (5);
(5) judging whether the module is the main control module or other modules according to the ID of the module to be upgraded in the data frame; if the main control module is upgraded, transferring the effective data to a pre-opened RAM, and entering a program upgrading process of the main control module; if the module is upgraded, the upgrading data frame is sent to the corresponding module, the corresponding module stores the effective data into a pre-opened RAM, and the module enters the module program upgrading process;
(6) according to the characteristics of the self program solidified memory, after a received program upgrading frame reaches the size of a programming unit suitable for the program memory, erasing a program storage space to be programmed of the program memory, programming an upgrading program to a corresponding address unit in the program memory, and reporting a response frame whether a program upgrading data frame is correctly programmed or not;
(7) the upper computer performs corresponding operation according to the received response frame; if the program upgrading data frame check error response frame is received, the upper computer retransmits the data frame; if a program upgrading data frame missing response frame is received, the upper computer reissues the missing data frame; if the program programming failure response frame is received, the upper computer retransmits the data frame with programming failure; and if the program programming success response frame is received, the upper computer continuously sends the next data frame or finishes upgrading.
Furthermore, the unpacking size of the program upgrading packet in the step (1) is 1 k-8 k bytes, and the program upgrading data frame which is not enough in unpacking size is filled with zero or FF.
Further, the upgrading of the frame structure of the data frame in the step (2) includes: node ID to be upgraded, module ID to be upgraded, total package number of programs, current package count, data length, valid data, and verification.
Further, the frame structure of the response frame in the step (3), the step (4), the step (6), and the step (7) includes: node ID to be upgraded, module ID to be upgraded, total package number of programs, current package count, lost package count, upgrade status, and verification.
Compared with the background technology, the invention has the following advantages:
1) by adopting the method, only the main node is provided with the interface for receiving the upgrading program package, thereby saving the cost.
2) The method is not limited by the number of system nodes, is matched with the advantages of an optical fiber ring network architecture, and has good universality and strong expansibility.
Drawings
Fig. 1 is a block diagram of an optical fiber ring network according to an embodiment of the present invention.
Fig. 2 is a schematic block diagram of a master node in an embodiment of the present invention.
Fig. 3 is a schematic block diagram of a slave node in an embodiment of the present invention.
FIG. 4 is a flow chart of a method according to an embodiment of the present invention.
Fig. 5 is a frame structure of a program upgrade data frame in an embodiment of the present invention.
Fig. 6 is a frame structure of a program upgrade response frame in an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
A method for upgrading online programs of master and slave devices under an optical fiber ring network architecture aims at an optical fiber ring network shown in figure 1, and master and slave nodes in the optical fiber ring network are shown in figures 2 and 3. Each node device comprises an optical fiber cascade module, a main control module and other functional modules. In the method, a main node provides a communication interface for receiving a program upgrading packet, and the main node receives the program upgrading packet and is used for upgrading the main node; and the master node receives the slave node program upgrading packet, transmits the slave node program upgrading packet to the corresponding slave node step by step through the optical fiber ring network, and the slave node receives the self program upgrading packet for self upgrading of the node.
As shown in fig. 4, the method specifically includes the following steps:
(101) and the upper computer unpacks and frames the program upgrading packet according to the actual engineering, and sends the frame as a unit to the main node.
(102) And the main node receives the program upgrading data frame and judges whether the node is upgraded or other node upgraded according to the ID of the node to be upgraded in the data frame. If the node is upgraded, entering the program upgrading process of the node; if the node is upgraded, entering the program upgrading process of the node and forwarding the upgraded data frame to all slave nodes step by step; and if the upgrading data frame is upgraded for a certain slave node, forwarding the upgrading data frame to the corresponding slave node step by step.
(103) After each node receives the program upgrading data frame of the node, the main control module of the node checks the data frame. If the verification fails, reporting a program upgrading data frame verification error response frame, and requesting the upper computer to retransmit the data frame; if the check is successful, step 104 is performed.
(104) And judging whether the data frame is continuously updated or not according to the total program packet number and the current packet count in the data frame. If the data frame is discontinuous, reporting a program upgrading data frame missing response frame, and requiring an upper computer to reissue the missing data frame; if the data frames are consecutive, step (105) is performed.
(105) And judging whether the upgrading is the main control module upgrading or other module upgrading according to the module ID to be upgraded in the data frame. If the main control module is upgraded, the effective data is transferred to a pre-opened RAM, and the main control module enters a program upgrading process; if the module is upgraded for other modules, the upgrading data frame is sent to the corresponding module, the corresponding module stores the effective data in the pre-opened RAM, and the module program upgrading process is entered.
(106) According to the characteristics of the self program solidified memory, after the received program upgrading frame reaches the size of a programming unit suitable for the program memory, the memory space of the program to be programmed of the program memory is erased, then the upgrading program is programmed to a corresponding address unit in the program memory, and a response frame whether the program upgrading data frame is correctly programmed or not is reported.
(107) And the upper computer performs corresponding operation according to the received response frame. If a program upgrading data frame check error response frame is received, the upper computer retransmits the data frame; if a program upgrading data frame missing response frame is received, the upper computer reissues the missing data frame; if receiving the program programming failure response frame, retransmitting the data frame with programming failure by the upper computer; and if the program programming success response frame is received, the upper computer continuously sends the next data frame or finishes upgrading.
The unpacking size of the program upgrading packet in the step (101) is selected according to the characteristics of the program solidification memory of the module to be upgraded, the unpacking of the program upgrading packet is generally carried out according to the size of 1 k-8 k bytes, and zero padding or FF (flow field) is carried out according to the characteristics of the memory when the unpacking size is insufficient, so that the transmission efficiency of upgrading data is considered.
As shown in fig. 5, the frame structure of the framing in step (102) mainly includes the following elements: the node ID to be upgraded, the module ID to be upgraded, the total package number of the program, the current package count, the data length, the valid data and the verification, and the occupied space of each main component element can be adjusted according to the actual engineering.
As shown in fig. 6, the response frame structure in step (103), step (104), step (106) and step (107) mainly includes the following elements: the node ID to be upgraded, the module ID to be upgraded, the total package number of the program, the current package count, the lost package count, the upgrade state and the verification, and the occupied space of each main component element can be adjusted according to the actual engineering.
In addition to the above embodiments, the present invention may have other embodiments, and all the technical solutions using equivalent or equivalent forms are within the scope of the present invention.
Claims (4)
1. A master-slave device online program upgrading method under an optical fiber ring network architecture is characterized by comprising the following steps:
(1) the upper computer unpacks and frames the program upgrade package, and sends the program upgrade package to the main node by taking the frame as a unit;
(2) the main node receives the program upgrading data frame and judges whether the node is upgraded or other node upgraded according to the ID of the node to be upgraded in the data frame; if the node is upgraded, entering a program upgrading process of the node; if all the nodes are upgraded, entering the program upgrading process of the node and forwarding the upgraded data frame to all the slave nodes step by step; if the node is upgraded, the upgrading data frame is forwarded to the corresponding slave node step by step;
(3) after each node receives the program upgrading data frame of the node, the main control module of the node checks the data frame; if the verification fails, reporting a program upgrading data frame verification error response frame, and requesting the upper computer to retransmit the data frame; if the verification is successful, executing the step (4);
(4) judging whether the upgrading data frames are continuous or not according to the total program packet number and the current packet count in the data frames; if the data frame is discontinuous, reporting a program upgrading data frame missing response frame, and requiring an upper computer to reissue the missing data frame; if the data frames are continuous, executing the step (5);
(5) judging whether the module is the main control module or other modules according to the ID of the module to be upgraded in the data frame; if the main control module is upgraded, transferring the effective data to a pre-opened RAM, and entering a program upgrading process of the main control module; if the module is upgraded, the upgrading data frame is sent to the corresponding module, the corresponding module stores the effective data into a pre-opened RAM, and the module enters the module program upgrading process;
(6) according to the characteristics of the self program solidified memory, after a received program upgrading frame reaches the size of a programming unit suitable for the program memory, erasing a program storage space to be programmed of the program memory, programming an upgrading program to a corresponding address unit in the program memory, and reporting a response frame whether a program upgrading data frame is correctly programmed or not;
(7) the upper computer performs corresponding operation according to the received response frame; if the program upgrading data frame check error response frame is received, the upper computer retransmits the data frame; if a program upgrading data frame missing response frame is received, the upper computer reissues the missing data frame; if the program programming failure response frame is received, the upper computer retransmits the data frame with programming failure; and if the program programming success response frame is received, the upper computer continuously sends the next data frame or finishes upgrading.
2. The method for on-line program upgrade of a master device and a slave device under an optical fiber ring network architecture according to claim 1, wherein the unpacking size of the program upgrade package in the step (1) is 1 k-8 kbytes, and the program upgrade data frame with the size less than the unpacking size is filled with zero or FF.
3. The method according to claim 1, wherein the frame structure of the procedure-upgraded data frame in step (2) includes: node ID to be upgraded, module ID to be upgraded, total package number of programs, current package count, data length, valid data, and verification.
4. The method for upgrading on-line programs of a master device and a slave device under an optical fiber ring network architecture according to claim 1, wherein the frame structure of the response frame in the steps (3), (4), (6) and (7) comprises: node ID to be upgraded, module ID to be upgraded, total package number of programs, current package count, lost package count, upgrade status, and verification.
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Cited By (2)
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| CN112015452A (en) * | 2020-09-10 | 2020-12-01 | 深圳市嘉昱机电有限公司 | Firmware upgrading method and device of gate system and gate system |
| CN114978896A (en) * | 2022-04-18 | 2022-08-30 | 中国电子科技集团公司第二十九研究所 | Online reconstruction method for embedded software of heterogeneous platform |
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Application publication date: 20200728 |