CN114172761A - Integrity checking method for distributed 1394 bus network system - Google Patents
Integrity checking method for distributed 1394 bus network system Download PDFInfo
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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
- H04L12/40013—Details regarding a bus controller
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- H—ELECTRICITY
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- 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
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
- H04L41/0836—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability to enhance reliability, e.g. reduce downtime
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- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/40—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection
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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
- H04L12/40169—Flexible bus arrangements
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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
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The application relates to a distributed 1394 bus network system integrity checking method, which is designed to sequentially judge whether the time deviation of a remote node RN receiving a bus management controller CC frame start packet STOF message is effective, whether the bus management controller CC state is good, whether the working mode of the distributed 1394 bus network system is a normal working mode, and the integrity of an asynchronous stream packet STOF message, when the time deviation of the remote node RN receiving the bus management controller CC frame start packet STOF message is judged to be invalid for a plurality of times continuously, the state of the bus management controller CC is not good, and the integrity of the asynchronous flow packet message is lost, and judging that the integrity of the distributed 1394 bus network system is lost, so as to realize the integrity check of the distributed 1394 bus network system.
Description
Technical Field
The application belongs to the technical field of integrity check of a distributed 1394 bus network system, and particularly relates to a method for checking the integrity of the distributed 1394 bus network system.
Background
The 1394 bus has the characteristics of high bandwidth, high reliability, strong real-time property and the like, and is widely applied to an electronic system, the 1394 bus protocol based on the AS5643 protocol provides CRC (cyclic redundancy check), heartbeat and VPC (virtual private network) check modes, the integrity check of the remote node RN (remote node) receiving bus management controller CC (communication control) message of the 1394 bus network system based on the AS5643 protocol is realized, but a feasible method capable of checking the integrity of the networking distributed 1394 bus network system is lacked at present, and the working stability and reliability of the distributed 1394 bus network system are difficult to ensure.
The present application has been made in view of the above-mentioned technical drawbacks.
It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present application.
Disclosure of Invention
It is an object of the present application to provide a method for integrity checking a distributed 1394 bus network system to overcome or alleviate at least one of the technical disadvantages of the known prior art.
The technical scheme of the application is as follows:
a distributed 1394 bus network system integrity checking method includes:
judging whether the time deviation of the remote node RN receiving a bus management controller CC frame start packet STOF message is effective or not;
if the time deviation of the remote node RN receiving the bus management controller CC frame start packet STOF message is judged to be invalid for a plurality of times continuously, the integrity of the distributed 1394 bus network system is judged to be lost;
if the time deviation of the STOF message of the frame start packet is judged to be effective, judging whether the STOF message of the frame start packet is effective or not;
if the STOF message of the frame start packet is judged to be invalid for a plurality of times continuously, the integrity of the network system of the distributed 1394 bus is judged to be lost;
if the STOF message of the frame start packet is judged to be effective, judging whether the CC state of the bus management controller is good or not;
if the CC state of the bus management controller is judged not to be good, the completeness of the distributed 1394 bus network system is judged to be lost;
if the CC state of the bus management controller is judged to be good, whether the working mode of the distributed 1394 bus network system is a normal working mode is judged;
if the working mode of the distributed 1394 bus network system is judged to be a normal working mode, judging the integrity of the asynchronous stream packet message;
and if the integrity of the asynchronous stream packet message is judged to be missing, judging that the integrity of the distributed 1394 bus network system is missing.
According to at least one embodiment of the present application, in the integrity check method for a distributed 1394 bus network system, if it is determined that the time offset of the start-of-frame packet STOF message is invalid, the start-of-frame packet STOF message of the current period is ignored.
According to at least one embodiment of the present application, in the integrity check method for a distributed 1394 bus network system, if it is determined that the time offset when the remote node RN receives the bus management controller CC start packet STOF message is invalid for a plurality of consecutive times, the bus management controller CC branch failure is recorded.
According to at least one embodiment of the present application, in the integrity check method for a distributed 1394 bus network system, if it is determined that the start-of-frame packet STOF message is invalid, the start-of-frame packet STOF message of the present cycle is ignored.
According to at least one embodiment of the present application, in the integrity check method for a distributed 1394 bus network system, if it is determined that a start-of-frame packet STOF message is invalid for a plurality of consecutive times, a bus management controller CC branch failure is recorded.
According to at least one embodiment of the present application, in the method for checking integrity of a distributed 1394 bus network system, if the status of the bus management controller CC is determined not to be good, the STOF message of the frame start packet in the current cycle is ignored.
According to at least one embodiment of the present application, in the integrity check method for a distributed 1394 bus network system, if the status of the bus management controller CC is determined not to be good, the bus management controller CC branch failure is recorded.
According to at least one embodiment of the present application, in the integrity check method for a distributed 1394 bus network system, the determining the integrity of the asynchronous stream packet message specifically includes:
and performing CRC, heartbeat and VPC verification on the asynchronous flow packet message, judging that the integrity of the asynchronous flow packet message is complete if the CRC, heartbeat and VPC verification passes, and otherwise, judging that the integrity of the asynchronous flow packet message is deficient.
According to at least one embodiment of the present application, in the integrity check method for a distributed 1394 bus network system, if it is determined that the integrity of the asynchronous stream message is missing, the message fault processing is performed on the remote node RN.
According to at least one embodiment of the present application, in the integrity check method for a distributed 1394 bus network system, if it is determined that the working mode of the distributed 1394 bus network system is not the normal working mode, it is determined whether the working mode of the distributed 1394 bus network system is the system self-check mode;
if the working mode of the distributed 1394 bus network system is judged to be the system self-checking mode, whether the distributed 1394 bus network system meets the condition of entering the system self-checking mode is judged;
if the distributed 1394 bus network system is judged to be not satisfied with the condition of entering the system self-checking mode for a plurality of times continuously, the integrity of the distributed 1394 bus network system is judged to be lost;
and if the distributed 1394 bus network system is judged to meet the condition of entering the system self-checking mode, switching the distributed 1394 bus network system into the system self-checking mode, and judging whether the time deviation of the remote node RN for receiving the bus management controller CC frame start packet STOF message is effective or not again after the self-checking is finished and the self-checking result is sent or the time is overtime.
According to at least one embodiment of the present application, in the integrity check method for a distributed 1394 bus network system, if it is determined that the working mode of the distributed 1394 bus network system is not the system self-check mode, it is determined whether the working mode of the distributed 1394 bus network system is the software loading mode;
if the working mode of the distributed 1394 bus network system is judged to be not the software loading mode, the integrity of the distributed 1394 bus network system is judged to be lost;
if the working mode of the distributed 1394 bus network system is judged to be the software loading mode, whether the distributed 1394 bus network system meets the condition of entering the software loading mode is judged;
if the distributed 1394 bus network system is judged to be not satisfied with the condition of entering the software loading mode for a plurality of times continuously, the integrity of the distributed 1394 bus network system is judged to be lost;
and if the distributed 1394 bus network system meets the condition of entering the software loading mode, switching the distributed 1394 bus network system into the software loading mode, and after the software loading is finished, judging whether the time deviation of the remote node RN for receiving the bus management controller CC frame start packet STOF message is effective again.
Drawings
Fig. 1 is a schematic diagram of a distributed 1394 bus network system integrity checking method according to an embodiment of the present disclosure.
For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.
The present application is described in further detail below with reference to fig. 1.
A distributed 1394 bus network system integrity checking method includes:
judging whether the time deviation of the remote node RN for receiving the bus management controller CC frame start packet STOF message is effective, wherein if the time interval of the remote node RN for receiving the bus management controller CC frame start packet STOF message this time is within 10ms +/-100 us from the time interval of receiving the frame start packet STOF message last time, the time deviation of receiving the frame start packet STOF message this time can be considered to be effective;
if the time deviation of the remote node RN receiving the bus management controller CC frame start packet STOF message is judged to be invalid for a plurality of times continuously, specifically three times, the integrity of the distributed 1394 bus network system is judged to be lost;
if the time deviation of the frame start packet STOF message is judged to be effective, whether the frame start packet STOF message is effective or not is judged, and checking and judging can be carried out according to the 1394 bus protocol standard;
if the STOF message of the frame start packet is judged to be invalid for a plurality of times, specifically three times, the integrity of the network system of the distributed 1394 bus is judged to be lost;
if the STOF message of the frame start packet is judged to be effective, judging whether the CC state of the bus management controller is good or not;
if the CC state of the bus management controller is judged not to be good, the completeness of the distributed 1394 bus network system is judged to be lost;
if the state of the bus management controller CC is judged to be good, namely the bus management controller CC is in a normal working state, judging whether the working mode of the distributed 1394 bus network system is a normal working mode or not;
if the working mode of the distributed 1394 bus network system is judged to be a normal working mode, the integrity of the asynchronous stream packet message or other messages is judged;
and if the integrity of the asynchronous stream packet message or other messages is judged to be missing, judging that the integrity of the network system of the distributed 1394 bus is missing.
With respect to the distributed 1394 bus network system integrity checking method disclosed in the above embodiments, it will be understood by those skilled in the art that, the design of the method sequentially judges whether the time deviation of the remote node RN receiving the bus management controller CC frame start packet STOF message is effective, whether the bus management controller CC state is good, whether the working mode of the distributed 1394 bus network system is a normal working mode, the integrity of an asynchronous stream packet or other messages, when the time deviation of the remote node RN receiving the bus management controller CC frame start packet STOF message is judged to be invalid for a plurality of times continuously, the state of the bus management controller CC is not good, and the integrity of the asynchronous stream packet message or other messages is lost, and judging that the integrity of the distributed 1394 bus network system is lost, so as to realize the integrity check of the distributed 1394 bus network system.
In some optional embodiments, in the integrity checking method for a distributed 1394 bus network system, if it is determined that the time offset of the start-of-frame packet STOF message is invalid, the start-of-frame packet STOF message of the present cycle is ignored.
In some optional embodiments, in the integrity check method for a distributed 1394 bus network system, if it is determined that the time offset when the remote node RN receives the bus management controller CC start packet STOF message is invalid for multiple consecutive times, it is recorded that the bus management controller CC branch fails.
In some optional embodiments, in the integrity checking method for a distributed 1394 bus network system, if the start-of-frame packet STOF message is determined to be invalid, the start-of-frame packet STOF message in the period is ignored.
In some optional embodiments, in the integrity checking method for a distributed 1394 bus network system, if it is determined that the STOF message of the start-of-frame packet is invalid for multiple consecutive determinations, a failure of a CC branch of the bus management controller is recorded.
In some optional embodiments, in the integrity checking method for a distributed 1394 bus network system, if the status of the bus management controller CC is determined not to be good, the STOF message of the start packet of the frame in the current period is ignored.
In some optional embodiments, in the integrity checking method for a distributed 1394 bus network system, if the status of the bus management controller CC is determined not to be good, the bus management controller CC branch failure is recorded.
In some optional embodiments, in the integrity checking method for a distributed 1394 bus network system, the determining the integrity of the asynchronous stream packet message specifically includes:
and performing CRC, heartbeat and VPC verification on the asynchronous flow packet message, judging that the integrity of the asynchronous flow packet message is complete if the CRC, heartbeat and VPC verification passes, and otherwise, judging that the integrity of the asynchronous flow packet message is missing.
In some optional embodiments, in the integrity checking method for a distributed 1394 bus network system, if it is determined that the integrity of the asynchronous stream message is missing, the message fault processing is performed on the remote node RN.
In some optional embodiments, in the integrity check method for a distributed 1394 bus network system, if it is determined that the working mode of the distributed 1394 bus network system is not the normal working mode, it is determined whether the working mode of the distributed 1394 bus network system is the system self-check mode;
if the working mode of the distributed 1394 bus network system is judged to be the system self-checking mode, whether the distributed 1394 bus network system meets the condition of entering the system self-checking mode is judged;
if the distributed 1394 bus network system is continuously judged for multiple times not to meet the condition of entering a system self-checking mode, the integrity of the distributed 1394 bus network system is judged to be lost;
and if the distributed 1394 bus network system is judged to meet the condition of entering the system self-checking mode, switching the distributed 1394 bus network system into the system self-checking mode, and judging whether the time deviation of the remote node RN for receiving the bus management controller CC frame start packet STOF message is effective or not again after the self-checking is finished and the self-checking result is sent or the time is overtime.
In some optional embodiments, in the integrity check method for the distributed 1394 bus network system, if it is determined that the working mode of the distributed 1394 bus network system is not the system self-test mode, it is determined whether the working mode of the distributed 1394 bus network system is the software loading mode;
if the working mode of the distributed 1394 bus network system is judged to be not the software loading mode, the integrity of the distributed 1394 bus network system is judged to be lost;
if the working mode of the distributed 1394 bus network system is judged to be the software loading mode, whether the distributed 1394 bus network system meets the condition of entering the software loading mode is judged;
if the distributed 1394 bus network system is judged to be not satisfied with the condition of entering the software loading mode for a plurality of times continuously, the integrity of the distributed 1394 bus network system is judged to be lost;
and if the distributed 1394 bus network system meets the condition of entering the software loading mode, switching the distributed 1394 bus network system into the software loading mode, and after the software loading is finished, judging whether the time deviation of the remote node RN for receiving the bus management controller CC frame start packet STOF message is effective again.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (10)
1. A distributed 1394 bus network system integrity checking method is characterized by comprising the following steps:
judging whether the time deviation of the remote node RN receiving a bus management controller CC frame start packet STOF message is effective or not;
if the time deviation of the remote node RN receiving the bus management controller CC frame start packet STOF message is judged to be invalid for a plurality of times continuously, the integrity of the distributed 1394 bus network system is judged to be lost;
if the time deviation of the STOF message of the frame start packet is judged to be effective, judging whether the STOF message of the frame start packet is effective or not;
if the STOF message of the frame start packet is judged to be invalid for a plurality of times continuously, the integrity of the network system of the distributed 1394 bus is judged to be lost;
if the STOF message of the frame start packet is judged to be effective, judging whether the CC state of the bus management controller is good or not;
if the CC state of the bus management controller is judged not to be good, the completeness of the distributed 1394 bus network system is judged to be lost;
if the CC state of the bus management controller is judged to be good, whether the working mode of the distributed 1394 bus network system is a normal working mode is judged;
if the working mode of the distributed 1394 bus network system is judged to be a normal working mode, judging the integrity of the asynchronous stream packet message;
and if the integrity of the STOF message of the asynchronous stream packet is judged to be missing, judging that the integrity of the network system of the distributed 1394 bus is missing.
2. The distributed 1394 bus network system integrity checking method of claim 1,
and if the time deviation of the frame start packet STOF message is judged to be invalid, ignoring the frame start packet STOF message in the period.
3. The distributed 1394 bus network system integrity checking method of claim 1,
and if the time deviation of the remote node RN receiving the STOF message of the CC frame start packet is judged to be invalid for a plurality of times continuously, recording the CC branch failure of the bus management controller.
4. The distributed 1394 bus network system integrity checking method of claim 1,
if the frame starting packet STOF message is judged to be invalid, ignoring the frame starting packet STOF message in the period;
if the STOF message of the frame start packet is judged to be invalid continuously for many times, the CC branch failure of the bus management controller is recorded.
5. The distributed 1394 bus network system integrity checking method of claim 1,
if the bus management controller CC state is judged not to be good, the STOF message of the frame start packet in the period is ignored.
6. The distributed 1394 bus network system integrity checking method of claim 1,
and if the state of the bus management controller CC is judged not to be good, recording the failure of the bus management controller CC branch.
7. The distributed 1394 bus network system integrity checking method of claim 1,
judging the integrity of the asynchronous stream packet message, specifically:
and performing CRC, heartbeat and VPC verification on the asynchronous flow packet message, judging that the integrity of the STOF message of the asynchronous flow packet is complete if the check is passed, and otherwise, judging that the integrity of the STOF message of the asynchronous flow packet is lost.
8. The distributed 1394 bus network system integrity checking method of claim 1,
and if the integrity of the asynchronous flow packet message is judged to be missing, performing message fault processing on the remote node RN.
9. The distributed 1394 bus network system integrity checking method of claim 1,
if the working mode of the distributed 1394 bus network system is judged not to be the normal working mode, judging whether the working mode of the distributed 1394 bus network system is the system self-checking mode or not;
if the working mode of the distributed 1394 bus network system is judged to be the system self-checking mode, whether the distributed 1394 bus network system meets the condition of entering the system self-checking mode is judged;
if the distributed 1394 bus network system is continuously judged for multiple times not to meet the condition of entering a system self-checking mode, the integrity of the distributed 1394 bus network system is judged to be lost;
and if the distributed 1394 bus network system meets the condition of entering the system self-checking mode, switching the distributed 1394 bus network system into the system self-checking mode, and judging whether the time deviation of the remote node RN receiving the bus management controller CC frame start packet STOF message is effective or not again after the self-checking is finished and the self-checking result is sent or the time is overtime.
10. The distributed 1394 bus network system integrity checking method of claim 9,
if the working mode of the distributed 1394 bus network system is judged not to be the system self-checking mode, judging whether the working mode of the distributed 1394 bus network system is the software loading mode or not;
if the working mode of the distributed 1394 bus network system is judged to be not the software loading mode, the integrity of the distributed 1394 bus network system is judged to be lost;
if the working mode of the distributed 1394 bus network system is judged to be the software loading mode, whether the distributed 1394 bus network system meets the condition of entering the software loading mode is judged;
if the distributed 1394 bus network system is continuously judged for multiple times not to meet the condition of entering the software loading mode, the integrity of the distributed 1394 bus network system is judged to be lost;
and if the distributed 1394 bus network system meets the condition of entering the software loading mode, switching the distributed 1394 bus network system into the software loading mode, and after the software loading is finished, judging whether the time deviation of the remote node RN for receiving the bus management controller CC frame start packet STOF message is effective again.
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