CN109560993A - The method of communication link abnormality detection, device, electronic equipment and network - Google Patents
The method of communication link abnormality detection, device, electronic equipment and network Download PDFInfo
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- CN109560993A CN109560993A CN201811565118.3A CN201811565118A CN109560993A CN 109560993 A CN109560993 A CN 109560993A CN 201811565118 A CN201811565118 A CN 201811565118A CN 109560993 A CN109560993 A CN 109560993A
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- node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/069—Management of faults, events, alarms or notifications using logs of notifications; Post-processing of notifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
Abstract
This disclosure relates to a kind of method of communication link abnormality detection, device, electronic equipment and network, the method is applied to the destination node in RS485 bus, the method is run parallel with the application program on the destination node, the described method includes: periodically other nodes in the RS485 bus send the heartbeat detection data packet including node address to the destination node in RS485 bus, the node that the heartbeat detection data packet is used to request the node address specified feeds back reply data packet to the destination node；If the destination node in preset duration, does not receive the reply data packet for responding the heartbeat detection data packet, it is determined that the communication link between node that the destination node and the node address are specified is abnormal.
Description
Technical field
This disclosure relates to communication technique field, and in particular, to a kind of method of communication link abnormality detection, device, electricity
Sub- equipment and network.
Background technique
RS485 is a kind of serial data interface standard developed and published by American Electronics Industry Association, and use is semiduplex
Communication mode only makes regulation to the electrical characteristic of interface.Any moment of RS485 can only have a node to be in and send shape
State, other nodes necessarily are in reception state, therefore the high-rise communications protocol of RS485 generally uses master-slave mode.Since RS485 has
There is the features such as remote communication distance, strong antijamming capability, networking is simple, cost is relatively low, strong applicability, in Industry Control and intelligence
Extensive use has been obtained in the fields such as instrument.
Currently, RS485 bus communication link is often without link maintenance, when communication link occurs abnormal, technology people
Member is difficult to note abnormalities and determine fault point at the first time, is easy to appear the case where data duration is lost.
Summary of the invention
Purpose of this disclosure is to provide a kind of method of communication link abnormality detection, device, electronic equipment and network, to
Existing RS485 communication link is solved not carry out abnormality detection so that communication link abnormal conditions are difficult to be realized in time, in turn
The problem of leading to loss of data.
To achieve the goals above, in a first aspect, the disclosure provides a kind of communication link method for detecting abnormality, the method
Applied to the destination node in RS485 bus, the method is run parallel with the application program on the destination node, the side
Method includes:
Periodically other nodes in the RS485 bus are sent including node destination node in RS485 bus
The heartbeat detection data packet of address, the node that the heartbeat detection data packet is used to request the node address specified is to the mesh
Mark node feeding back reply data packet；
If the destination node in preset duration, does not receive the answer number for responding the heartbeat detection data packet
According to packet, it is determined that the communication link between node that the destination node and the node address are specified is abnormal.
Optionally, the destination node is the host node in the RS485 bus, the target section in the RS485 bus
Periodically other nodes in the RS485 bus send the heartbeat detection data packet including node address to point, comprising:
The host node cycle in a manner of poll in the RS485 bus it is multiple from node send heartbeat inspection
Measured data packet.
Optionally, the destination node is the slave node in the RS485 bus, the target section in the RS485 bus
Periodically other nodes in the RS485 bus send the heartbeat detection data packet including node address to point, comprising:
It is described that from node, periodically the host node in the RS485 bus sends heartbeat detection data packet.
Optionally, the method also includes:
It is when determining the communication link exception between the node that the host node and the node address are specified, link is different
Normal information reporting is to backstage and is recorded using in log.
Second aspect, the disclosure provide a kind of bus communication link abnormal detector, and described device includes:
Sending module sends the heart including node address for other nodes periodically in the RS485 bus
Detection data packet is jumped, the node that the heartbeat detection data packet is used to request the node address specified is anti-to the destination node
Present reply data packet；
Determination module is used in preset duration, if the destination node does not receive for responding the heartbeat detection
The reply data packet of data packet, it is determined that the communication link between node that the destination node and the node address are specified is different
Often.
Optionally, the destination node is the host node in the RS485 bus, and the sending module is specifically used for:
It is periodically multiple from node transmission heartbeat detection data packet in the RS485 bus in a manner of poll.
Optionally, the destination node is the slave node in the RS485 bus, and the sending module is specifically used for:
Periodically the host node in the RS485 bus sends heartbeat detection data packet.
Optionally, described device further include:
Reporting module, for determining that the communication link between the node that the host node and the node address are specified is different
Link exception information is reported to backstage by Chang Shi；
Logging modle, for determining that the communication link between the node that the host node and the node address are specified is different
Link exception information is recorded using in log Chang Shi.
The third aspect, the disclosure provide a kind of electronic equipment, the electronic equipment as the destination node in RS485 bus,
Include:
Memory is stored thereon with computer program；
Processor, for executing the computer program in the memory, any one of to realize in first aspect
The step of the method.
Fourth aspect, the disclosure provide a kind of RS485 bus network, comprising:
The host node that is connected respectively with RS485 bus and multiple from node；
The host node is used to periodically send heartbeat detection data packet from node to the multiple, and in preset duration
When not receiving the reply data packet for responding the heartbeat detection data packet inside, determines the host node and do not feed back response
The communication link exception between node of data packet；And/or
It is described to be used to periodically send heartbeat detection data packet to the host node from node, and in preset duration,
When not receiving the reply data packet for responding the heartbeat detection data packet, determine it is described from node and the host node it
Between communication link it is abnormal.
By adopting the above technical scheme, following technical effect can at least be reached:
System can monitor the operating condition of communication link between arbitrary node in RS485 bus, and communication link is gone out
Existing exception, system can judge malfunctioning node with automatic sensing and in real time, facilitate technical staff and carry out to malfunctioning node
Quickly positioning and processing, and then reduce the risk for causing data persistently to be lost extremely because of communication link.Also, it is directed to communication link
Abnormality detection be run parallel with the application program on destination node so that program operation during, application program itself
It can be with real-time detection to the link state between other nodes and destination node.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is a kind of flow chart of communication link method for detecting abnormality shown in one exemplary embodiment of the disclosure.
Fig. 2 is a kind of flow chart of communication link method for detecting abnormality shown in one exemplary embodiment of the disclosure.
Fig. 3 is a kind of flow chart of communication link method for detecting abnormality shown in one exemplary embodiment of the disclosure.
Fig. 4 is a kind of block diagram of communication link abnormal detector shown in one exemplary embodiment of the disclosure.
Fig. 5 is a kind of block diagram of communication link abnormal detector shown in one exemplary embodiment of the disclosure.
Fig. 6 is the block diagram of a kind of electronic equipment shown according to an exemplary embodiment.
Fig. 7 is a kind of RS485 bus network schematic diagram shown according to an exemplary embodiment.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
Before the communication link method for detecting abnormality for introducing disclosure offer, first to application scenarios involved in the disclosure
It is introduced, implementation environment involved in each embodiment of the disclosure may include communication link, which can be
Each communication link in RS485 bus.
Fig. 1 is a kind of flow chart of communication link method for detecting abnormality shown in one exemplary embodiment of the disclosure, described
Method can be applied to the destination node in RS485 bus, and run parallel with the application program on the destination node, described
Method includes:
Other nodes transmission of destination node in S11, RS485 bus periodically in the RS485 bus includes
The heartbeat detection data packet of node address, the node that the heartbeat detection data packet is used to request the node address specified is to institute
State destination node feedback reply data packet.
Wherein, the destination node can be host or any slave in RS485 bus, the heartbeat detection data packet
In include link circuit condition address of node to be detected and to be used between the address of the destination node and the destination node
Request the node to the heartbeat detection instruction of destination node feedback reply data packet.
Illustratively, when other nodes when destination node in RS485 bus send the heartbeat detection data packet, other
Node can parse the heartbeat detection data packet after receiving the heartbeat detection data packet, obtain node therein
Address.The node address that can then will acquire is compared with Self address, when the node address got and itself
Just the heartbeat detection instruction is responded when address is identical, Xiang Suoshu destination node feedback sends the reply data packet；Work as acquisition
When the node address and Self address difference that arrive, then ignore described instruction.
S12, judges whether the destination node receives the reply data packet in preset duration.
S13 determines the target when the destination node is not received by the reply data packet in preset duration
The communication link between node that node and the node address are specified is abnormal.
In conclusion communication link method for detecting abnormality provided in this embodiment can at least reach following technical effect:
System can monitor the operating condition of communication link between arbitrary node in RS485 bus, and communication link is gone out
Existing exception, system automatic sensing and can judge in real time malfunctioning node, facilitate technical staff and carry out to malfunctioning node
Quickly positioning and processing, and then reduce the risk for causing data persistently to be lost extremely because of communication link.Also, it is this for communication
The abnormality detection of link be run parallel with the application program on destination node so that program operation during, application program
Itself can be with real-time detection to the link state between other nodes and destination node.
Fig. 2 is a kind of flow chart of communication link method for detecting abnormality shown in one exemplary embodiment of the disclosure, such as Fig. 2
It is shown, which comprises
Host node cycle in S21, RS485 bus it is multiple from node in RS485 bus in a manner of poll
The heartbeat detection data packet including node address is sent, what the heartbeat detection data packet was used to request the node address specified
Node feeds back reply data packet to the host node.
It is multiple for example can be from node it is all from node in RS485 bus, to realize to host to all slaves
Heartbeat detection.
S22, judges whether the host node receives the reply data packet in preset duration.
S23, if the host node is not received by the reply data packet in preset duration, it is determined that the host node
The communication link between node specified with the node address is abnormal.
That is, the host node in the RS485 bus can be in a manner of sending heartbeat detection data packet to described
Other in RS485 bus are polled from node, and then can monitor other nodes in the host node and bus in real time
Between communication link situation.Also, this abnormality detection for communication link is parallel with the application program on host node
Operation, so that application program during operation itself can be with real-time detection to the link shape between other nodes and host node
State.When communication link occurs abnormal, the host node can real-time perception it is abnormal, avoid leading to data extremely because of communication link
The case where duration is lost.
In a kind of possible embodiment, the method be can further include:
Link exception information is reported to backstage and is recorded using in log by S24, host node.
In this way, the host node not only can be with real-time perception when abnormal conditions occurs in the communication link in RS485 bus
To exception, the exception information that can also be monitored is reported to backstage and is recorded in log, plays the effect of early warning.This
Outside, other in the RS485 bus are taken turns from node by the way of sending heartbeat detection data packet due to host node
It askes, therefore it can accurately judge the position of abnormal nodes, and then technical staff is helped to position abnormal point, be promoted
Troubleshooting efficiency.
Fig. 3 is a kind of flow chart of communication link method for detecting abnormality shown in one exemplary embodiment of the disclosure, such as Fig. 3
It is shown, which comprises
Periodically the host node in the RS485 bus sends heartbeat detection to slave node in S31, RS485 bus
Data packet, the heartbeat detection data packet is for requesting the host node to described from node feeding back reply data packet；
S32, whether judgement is described receives the reply data packet from node in preset duration；
S33, if described be not received by the reply data packet from node in preset duration, it is determined that described from node
Communication link between the host node is abnormal.
Wherein, when from nodal test to the communication link exception from node and the host node, from node
Link exception information can be recorded in log, technical staff can check the log from node by host node, to exception
Situation is analyzed.
That is, can first take heartbeat detection mechanism, i.e., to main section before sending data to host node from node
Point sends heartbeat detection data packet and waits the mode of host node feedback reply data packet to be received described from node and institute to judge
Whether the communication link stated between host node is normal.Avoid the situation unknown in the communication link situation from node and host node
Under, the case where directly sending data from node to host node, cause loss of data.
Fig. 4 is a kind of block diagram of communication link abnormal detector 400 shown in one exemplary embodiment of the disclosure, is such as schemed
Shown in 4, described device includes:
Sending module 401 sends the heartbeat including node address for other nodes periodically in RS485 bus
Detection data packet, the node that the heartbeat detection data packet is used to request the node address specified feed back response to destination node
Data packet；
Determination module 402, for being examined if the destination node does not receive for responding the heartbeat in preset duration
The reply data packet of measured data packet, it is determined that the communication link between node that the destination node and the node address are specified
It is abnormal.
Above-mentioned technical proposal can at least reach following technical effect:
Described device can monitor the operating condition of communication link between arbitrary node in RS485 bus, for communication link
The exception that road occurs, described device automatic sensing and can judge in real time malfunctioning node, facilitate technical staff to failure
Node is quickly positioned and is handled, and then reduces the risk for causing data persistently to be lost extremely because of communication link.
In a kind of possible embodiment, the destination node is the slave node in the RS485 bus, the transmission
Module is specifically used for: periodically the host node in the RS485 bus sends heartbeat detection data packet.
That is, described device before sending data to host node, can detect described in judgement from node from section
Whether the communication link between point and the host node is normal.It avoids unknown in the communication link situation from node and host node
In the case where, the case where directly sending data from node to host node, cause loss of data.
Fig. 5 is a kind of block diagram of communication link abnormal detector 400 shown in one exemplary embodiment of the disclosure,
In, destination node is the host node in RS485 bus, and described device includes:
Sending module 401, for periodically in a manner of poll in the RS485 bus it is multiple from node send
Heartbeat detection data packet；
Determination module 402 is used in preset duration, if the host node does not receive for responding the heartbeat detection
The reply data packet of data packet, it is determined that the communication link between node that the host node and the node address are specified is different
Often.
That is, described device can monitor the communication link in the host node and bus between other nodes in real time
Road situation, when communication link occurs abnormal, described device can real-time perception, avoid causing data to be held extremely because of communication link
The case where continuous property is lost.
In a kind of possible embodiment, as shown in figure 5, described device further include:
Reporting module 403, for determining the communication link between the node that the host node and the node address are specified
When the exception of road, link exception information is reported to backstage；
Logging modle 404, for determining the communication link between the node that the host node and the node address are specified
When the exception of road, link exception information is recorded using in log.
The above-mentioned integrated module realized in the form of software function module, can store and computer-readable deposit at one
In storage media.Above-mentioned software function module is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the portion of each embodiment the method for the present invention
Step by step.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, abbreviation
ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc. are various can store
The medium of program code.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.
The disclosure provides a kind of electronic equipment, which includes: as the destination node in RS485 bus
Memory is stored thereon with computer program；
Processor, for executing the computer program in the memory, to realize any one communication link
The step of method for detecting abnormality.
Fig. 6 is the block diagram of a kind of electronic equipment 600 shown according to an exemplary embodiment.For example, electronic equipment 600 can
To be provided as a server.Referring to Fig. 6, electronic equipment 600 includes processor 605, and quantity can be one or more, with
And memory 604, for storing the computer program that can be executed by processor 605.The computer program stored in memory 604
May include it is one or more each correspond to one group of instruction module.In addition, processor 605 can be configured as
The computer program is executed, to execute above-mentioned communication link method for detecting abnormality.
In addition, electronic equipment 600 can also include power supply module 603 and communication part 601, which can be with
It is configured as executing the power management of electronic equipment 600, which, which can be configured as, realizes electronic equipment 600
Communication, for example, wired or wireless communication.In addition, the electronic equipment 600 can also include input/output (I/O) interface 602.Electricity
Sub- equipment 600 can be operated based on the operating system for being stored in memory 604, such as Windows ServerTM, Mac OS
XTM, UnixTM, LinuxTM etc..
Fig. 7 is a kind of RS485 bus network schematic diagram shown according to an exemplary embodiment, as shown in fig. 7, the net
Network include host node connected with RS485 bus (bus shown in A in such as figure, B) respectively and it is multiple from node (in Fig. 7 only with
Illustrated from node 1 to from node 4).
The host node is used to periodically send heartbeat detection data packet from node to the multiple, and in preset duration
When not receiving the reply data packet for responding the heartbeat detection data packet inside, determines the host node and do not feed back response
The communication link exception between node of data packet；And/or
It is described to be used to periodically send heartbeat detection data packet to the host node from node, and in preset duration,
When not receiving the reply data packet for responding the heartbeat detection data packet, determine it is described from node and the host node it
Between communication link it is abnormal.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
It in the case where shield, can be combined in any appropriate way, such as in the specific implementation, Fig. 2 and Fig. 3 can be shown
Communication link method for detecting abnormality be combined, to realize the two-way detection between host and slave, in order to avoid unnecessary
Repetition, no further explanation will be given to various combinations of possible ways for the disclosure.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (10)
1. a kind of communication link method for detecting abnormality, which is characterized in that the method is applied to the target section in RS485 bus
Point, the method are run parallel with the application program on the destination node, which comprises
Periodically other nodes in the RS485 bus are sent including node address destination node in RS485 bus
Heartbeat detection data packet, the node that the heartbeat detection data packet is used to request the node address specified is to the target section
Point feedback reply data packet；
If the destination node in preset duration, does not receive the reply data for responding the heartbeat detection data packet
Packet, it is determined that the communication link between node that the destination node and the node address are specified is abnormal.
2. the method according to claim 1, wherein the destination node is the main section in the RS485 bus
Point, periodically other nodes in the RS485 bus are sent including node the destination node in the RS485 bus
The heartbeat detection data packet of location, comprising:
The host node cycle in a manner of poll in the RS485 bus it is multiple from node send heartbeat detection number
According to packet.
3. the method according to claim 1, wherein the destination node is the slave section in the RS485 bus
Point, periodically other nodes in the RS485 bus are sent including node the destination node in the RS485 bus
The heartbeat detection data packet of location, comprising:
It is described that from node, periodically the host node in the RS485 bus sends heartbeat detection data packet.
4. according to the method described in claim 2, it is characterized in that, the method also includes:
When determining the communication link exception between the node that the host node and the node address are specified, link is believed extremely
Breath is reported to backstage and is recorded using in log.
5. a kind of communication link abnormal detector, which is characterized in that described device is applied to the target section in RS485 bus
Point, described device include:
Sending module sends the heartbeat including node address for other nodes periodically in the RS485 bus and examines
Measured data packet, the node that the heartbeat detection data packet is used to request the node address specified are answered to destination node feedback
Answer data packet；
Determination module is used in preset duration, if the destination node does not receive for responding the heartbeat detection data
The reply data packet of packet, it is determined that the communication link between node that the destination node and the node address are specified is abnormal.
6. device according to claim 5, which is characterized in that the destination node is the main section in the RS485 bus
Point, the sending module are specifically used for: periodically multiple from node transmission in the RS485 bus in a manner of poll
Heartbeat detection data packet.
7. device according to claim 5, which is characterized in that the destination node is the slave section in the RS485 bus
Point, the sending module are specifically used for: periodically the host node in the RS485 bus sends heartbeat detection data packet.
8. device according to claim 6, which is characterized in that described device further include:
Reporting module, for determining that the communication link between the node that the host node and the node address are specified is abnormal
When, link exception information is reported to backstage；
Logging modle, for determining that the communication link between the node that the host node and the node address are specified is abnormal
When, link exception information is recorded using in log.
9. a kind of electronic equipment, which is characterized in that the electronic equipment is as the destination node in RS485 bus, comprising:
Memory is stored thereon with computer program；
Processor, for executing the computer program in the memory, to realize any one of claims 1 to 4 institute
The step of stating method.
10. a kind of RS485 bus network characterized by comprising
The host node that is connected respectively with RS485 bus and multiple from node；
The host node is used to periodically send heartbeat detection data packet from node to the multiple, and in preset duration not
When receiving the reply data packet for responding the heartbeat detection data packet, determines the host node and do not feed back reply data
The communication link exception between node of packet；And/or
It is described to be used to periodically send heartbeat detection data packet to the host node from node, and in preset duration, do not connect
When receiving the reply data packet for responding the heartbeat detection data packet, determine described between node and the host node
Communication link is abnormal.
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| CN110597222A (en) * | 2019-08-20 | 2019-12-20 | 中车青岛四方机车车辆股份有限公司 | Fault diagnosis system and fault diagnosis method |
| CN110515332A (en) * | 2019-08-23 | 2019-11-29 | 天津华春智慧能源科技发展有限公司 | Industrial bus abnormity troubleshooting device and method |
| CN110572303A (en) * | 2019-09-12 | 2019-12-13 | 苏州浪潮智能科技有限公司 | method and device for automatically discovering nodes |
| CN111556517A (en) * | 2020-04-28 | 2020-08-18 | 锐迪科微电子科技（上海）有限公司 | Method and device for processing abnormal link |
| CN112532731A (en) * | 2020-12-02 | 2021-03-19 | 上海英方软件股份有限公司 | Automatic optimization method and device for multiple market data sources |
| CN112532731B (en) * | 2020-12-02 | 2023-04-07 | 上海英方软件股份有限公司 | Automatic optimization method and device for multiple market data sources |
| CN112702202A (en) * | 2020-12-23 | 2021-04-23 | 南方电网数字电网研究院有限公司 | Ammeter communication link fault recovery method and device and computer equipment |
| CN112702202B (en) * | 2020-12-23 | 2023-01-20 | 南方电网数字电网研究院有限公司 | Ammeter communication link fault recovery method and device and computer equipment |
| CN112737856A (en) * | 2020-12-31 | 2021-04-30 | 青岛海尔科技有限公司 | Link tracking method and device, storage medium and electronic device |
| CN112737856B (en) * | 2020-12-31 | 2023-02-03 | 青岛海尔科技有限公司 | Link tracking method and device, storage medium and electronic device |
| CN114244693A (en) * | 2021-12-17 | 2022-03-25 | 中国建设银行股份有限公司 | Abnormality detection method, apparatus, device, medium, and program product |
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